-
9 Beiträge
-
0 Fotos
-
0 Videos
-
Male
-
18/03/2004
-
Follower 0 Menschen
© 2026 Webyourself Social Media Platform
Deutsch
Neueste Updates
-
In fringe projection profilometry, errors related to projectors are not easy to compensate for, as a projector is **** more difficult to calibrate than a camera. Immune to projector errors, the depth recovering method based on pixel cross-ratio invariance enables circumventing this issue by calculating the depth of a point from the shift of its camera pixel instead of from its fringe phase. With this existing technique, however, one has to search three reference phase maps along epipolar lines for pixels having the same phases. Doing so increases the measurement time significantly. To improve measurement efficiency, this paper derives, from the pixel cross-ratio invariance, a generic function representing the relationship between the depths and the corresponding pixel shifts and suggests a calibration method for determining its coefficient matrices. Using this function allows us to recover object depths just by searching a single reference phase map, thus reducing the time duration for data processing to about one-third. Besides, different from the previous method, which depends on exactly three reference phase maps, the proposed method calculates the function coefficients from more reference phase maps in the least-squares sense and denoises the benchmark reference phases by use of averaging technique, thus improving measurement accuracy. Experimental results demonstrate this method to be effective in improving measurement accuracy and efficiency.To solve the issue of external magnetic fields interfering with magneto-optical glass current sensors (****), this paper proposes a strip-like splicing structure. First, a mathematical model for integrating the magnetic field strength along the optical path is constructed, and the relationship between the gap size $a$a, the interference source distance $d$d, the angle of the interference source $\theta $θ, and the relative error $\varepsilon $ε is analyzed. Then, an optical-electromagnetic COMSOL Multiphysics simulation model is constructed. The simulation results are in good agreement with the theoretical results. Finally, the strip-like splicing **** structure is optimized by combining two different MOCSs with a tilt angle of 45°. Thus, their output signals are summed and the adjacent interference phase signals nearly compensate mutually. This new structure facilitates real-world installation, avoiding the angle being limited to a fixed value, and meeting a 0.2 accuracy of the anti-electromagnetic interference properties.An advanced optical design has been proposed for an astigmatism-free Offner imaging spectrometer with high resolution in the broadband spectrum. The anastigmatic theory is thoroughly analyzed. Astigmatism is corrected by two pairs of lens-mirror combinations. On the basis of the concentric structure, the lens is used to make the meridional image distance equal to sagittal image distance. An example of the design has been presented with f-number of 3 working in 400-1000 nm according to the optimized theory. By the ray-tracing results, the spectral sampling is 0.6nm/pixel, and the RMS spots radii in all fields of view are less than 5 µm. The spectral keystone distortion and smile distortion are less than 0.1%. The prototype is manufactured based on theory and tolerance analysis. The achieved prototype has advantages of high spectral resolution (3 nm) and compact configuration.Here, we investigate effects of the size of pores in porous alumina powders on the broadening of the oxygen gas absorption line. The line broadening is caused by collisions of oxygen molecules with the pore walls and is extracted using gas in scattering media absorption spectroscopy (GASMAS), while the average pore size is determined using the gas adsorption technique. The average pore size of the samples studied lies within the range 10-40 nm. In this range, the contribution of the wall collision broadening is found to be approximately inversely related to the average pore diameter. Furthermore, the confined oxygen gas absorbance measured by GASMAS is found to be linearly correlated with the effective porosity evaluated by the saturation method.An enhanced second-harmonic generation process in a dually resonant silicon-organic hybrid microring resonator is presented. The necessary phase matching is fulfilled through quasi-phase matching by periodically altering the spatial distribution of the second-order nonlinearity $\chi ^(2)$χ(2) of polymer infiltrated into a slot layer along the microring resonator propagation length. Absolute conversion efficiency up to $P_2\omega /P_\omega = 38\% $P2ω/Pω=38% with only 10 mW pump power at $\lambda = 3.1\;\unicodex00B5\rm m$λ=3.1µm is obtained in an optimized structure, which shows a $\sim76$∼76-fold improvement compared to that of the straight waveguide. Also, our efficiency is comparable to that of previous works, even with the **** lower pump power. We expect that our device will provide a potential application for bridging the mid-infrared and near-infrared bands on silicon photonics platforms.We report on the first documented observations, to the best of our knowledge, of the amethyst (super wolf) Moon recorded in the region just south of the northern Tropic of Cancer (latitude $21^\circ 7.745^\prime\;\rm N$21∘7.745'N), at about 2000 m height above the sea level during the lunar eclipse on 20 January 2019. During the color transition from the brownish red to amethyst blue (a mixture of dark blue and some red), the moon in the center of the Earth shadow (mid-eclipse) was nearly in zenith in Leon, Mexico. We interpret the amethyst color as arising from the inability of red rays to curve into the axial regions of the lunar spherical surface, while the scarce, randomly distributed blue rays are still incident there.In this paper, a convex micro-glass lens array fabrication process that utilizes $\rm CO_2$CO2 laser thermal reflow in the Bessel picosecond laser inscribing and hydrofluoric acid processed micro-glass pillars array is presented. The Bessel picosecond laser permits high tolerance and precise micro-pillar fabrication. In the thermal reshape process, the $\rm CO_2$CO2 laser power, relative defocus length, and scanning velocity are three crucial parameters to the microlens array's focal length. https://www.selleckchem.com/products/sodium-palmitate.html By using this method, microlens arrays with focal length ranging from several tens of micrometers to several hundred micrometers can be created. This research provides another way to fabricate convex micro-glass lens arrays with several hundred micrometers focal length in good utility.
In fringe projection profilometry, errors related to projectors are not easy to compensate for, as a projector is much more difficult to calibrate than a camera. Immune to projector errors, the depth recovering method based on pixel cross-ratio invariance enables circumventing this issue by calculating the depth of a point from the shift of its camera pixel instead of from its fringe phase. With this existing technique, however, one has to search three reference phase maps along epipolar lines for pixels having the same phases. Doing so increases the measurement time significantly. To improve measurement efficiency, this paper derives, from the pixel cross-ratio invariance, a generic function representing the relationship between the depths and the corresponding pixel shifts and suggests a calibration method for determining its coefficient matrices. Using this function allows us to recover object depths just by searching a single reference phase map, thus reducing the time duration for data processing to about one-third. Besides, different from the previous method, which depends on exactly three reference phase maps, the proposed method calculates the function coefficients from more reference phase maps in the least-squares sense and denoises the benchmark reference phases by use of averaging technique, thus improving measurement accuracy. Experimental results demonstrate this method to be effective in improving measurement accuracy and efficiency.To solve the issue of external magnetic fields interfering with magneto-optical glass current sensors (MOCS), this paper proposes a strip-like splicing structure. First, a mathematical model for integrating the magnetic field strength along the optical path is constructed, and the relationship between the gap size $a$a, the interference source distance $d$d, the angle of the interference source $\theta $θ, and the relative error $\varepsilon $ε is analyzed. Then, an optical-electromagnetic COMSOL Multiphysics simulation model is constructed. The simulation results are in good agreement with the theoretical results. Finally, the strip-like splicing MOCS structure is optimized by combining two different MOCSs with a tilt angle of 45°. Thus, their output signals are summed and the adjacent interference phase signals nearly compensate mutually. This new structure facilitates real-world installation, avoiding the angle being limited to a fixed value, and meeting a 0.2 accuracy of the anti-electromagnetic interference properties.An advanced optical design has been proposed for an astigmatism-free Offner imaging spectrometer with high resolution in the broadband spectrum. The anastigmatic theory is thoroughly analyzed. Astigmatism is corrected by two pairs of lens-mirror combinations. On the basis of the concentric structure, the lens is used to make the meridional image distance equal to sagittal image distance. An example of the design has been presented with f-number of 3 working in 400-1000 nm according to the optimized theory. By the ray-tracing results, the spectral sampling is 0.6nm/pixel, and the RMS spots radii in all fields of view are less than 5 µm. The spectral keystone distortion and smile distortion are less than 0.1%. The prototype is manufactured based on theory and tolerance analysis. The achieved prototype has advantages of high spectral resolution (3 nm) and compact configuration.Here, we investigate effects of the size of pores in porous alumina powders on the broadening of the oxygen gas absorption line. The line broadening is caused by collisions of oxygen molecules with the pore walls and is extracted using gas in scattering media absorption spectroscopy (GASMAS), while the average pore size is determined using the gas adsorption technique. The average pore size of the samples studied lies within the range 10-40 nm. In this range, the contribution of the wall collision broadening is found to be approximately inversely related to the average pore diameter. Furthermore, the confined oxygen gas absorbance measured by GASMAS is found to be linearly correlated with the effective porosity evaluated by the saturation method.An enhanced second-harmonic generation process in a dually resonant silicon-organic hybrid microring resonator is presented. The necessary phase matching is fulfilled through quasi-phase matching by periodically altering the spatial distribution of the second-order nonlinearity $\chi ^(2)$χ(2) of polymer infiltrated into a slot layer along the microring resonator propagation length. Absolute conversion efficiency up to $P_2\omega /P_\omega = 38\% $P2ω/Pω=38% with only 10 mW pump power at $\lambda = 3.1\;\unicodex00B5\rm m$λ=3.1µm is obtained in an optimized structure, which shows a $\sim76$∼76-fold improvement compared to that of the straight waveguide. Also, our efficiency is comparable to that of previous works, even with the much lower pump power. We expect that our device will provide a potential application for bridging the mid-infrared and near-infrared bands on silicon photonics platforms.We report on the first documented observations, to the best of our knowledge, of the amethyst (super wolf) Moon recorded in the region just south of the northern Tropic of Cancer (latitude $21^\circ 7.745^\prime\;\rm N$21∘7.745'N), at about 2000 m height above the sea level during the lunar eclipse on 20 January 2019. During the color transition from the brownish red to amethyst blue (a mixture of dark blue and some red), the moon in the center of the Earth shadow (mid-eclipse) was nearly in zenith in Leon, Mexico. We interpret the amethyst color as arising from the inability of red rays to curve into the axial regions of the lunar spherical surface, while the scarce, randomly distributed blue rays are still incident there.In this paper, a convex micro-glass lens array fabrication process that utilizes $\rm CO_2$CO2 laser thermal reflow in the Bessel picosecond laser inscribing and hydrofluoric acid processed micro-glass pillars array is presented. The Bessel picosecond laser permits high tolerance and precise micro-pillar fabrication. In the thermal reshape process, the $\rm CO_2$CO2 laser power, relative defocus length, and scanning velocity are three crucial parameters to the microlens array's focal length. https://www.selleckchem.com/products/sodium-palmitate.html By using this method, microlens arrays with focal length ranging from several tens of micrometers to several hundred micrometers can be created. This research provides another way to fabricate convex micro-glass lens arrays with several hundred micrometers focal length in good utility.0 Kommentare 0 Geteilt 22 Ansichten 0 BewertungenBitte loggen Sie sich ein, um liken, teilen und zu kommentieren! -
The most common etiology was pregnancy and puerperium, followed by hyperhomocysteinemia. Superior sagittal sinus was found to be the most common site of thrombosis in this study, in 17 (56.7%) of the patients. 17 patients (56.67%) recovered completely without any neurodeficit. 24 ( 80%) and 22 (66%) subjects had cerebral infarction secondary to CVT. 5 (16.67%) patients succumbed to thrombosis or complications, most commonly due to intracerebral haemorrhage and cerebral edema. Conclusion CVT is a disease with multifactorial, gender-related specific causes and has a wide and varied clinical spectrum. © Journal of the Association of Physicians of India 2011.Background Clinico-epidemiological profile of snake envenomation varies in different regions; however, data from India is inadequate. This study was planned to obtain such data from Goa, to help in quick identification of envenomation, prompt treatment and help in building a national database. https://www.selleckchem.com/products/poly-vinyl-alcohol.html Methods In this prospective observational study,all patients presenting to emergency department between April 2016 to August 2017 with history of snakebite and meeting inclusion and exclusion criteria were enrolled and analysed. Results 236 patients were screened, 156 were eligible. Mean age was 39.5±15.6; majority (n=122, 78.2%) were in the age group of 20-59 years; 119 (76.3%) were males. Seasonal variation was noted, highest number being in June, July and between September and December. Bites occurred commonly in housewives, students and retired personnel (n=108, 69.23%). 120 patients (76.9%) had hemotoxicity, 7 (4.5%) had neurotoxicity, 29 (18.6%) had only local reaction. Clinical features seen were bleeding (n= 40, 25.6%) , vomiting (n=15, 9.6%), giddiness/syncope (n=14, 9%), breathlessness (n=5, 3.2%), diplopia (n= 5,3.2%), ptosis (n=7, 4.5%), dysarthria (n=1, 0.6%), altered sensorium (n=7, 4.5%), oliguria (n=2, 1.3%), and chest pain (n=1, 0.6%). Majority (n= 117, 78.5%) received antivenom within 6 hours of bite. 31 patients (20.8%) developed reactions to antivenom, most were febrile reactions (n=12, 8.05%). Anaphylaxis occurred in 4 (2.68%) patients. Conclusion Snakebite is a common medical emergency in Goa, with distinct seasonal variation. There was no association between occupation and risk of bite. Hemotoxic and local cytotoxic features predominate in this area. Antivenom reactions though common, are usually mild. © Journal of the Association of Physicians of India 2011.Background Sexual problems are common in the society. But the medical professionals are reluctant to address sexual health issues. In this study we are assessing the attitude of medical practitioners towards various sexual health issues. Methods The study used anonymous self-responsive questionnaire survey of hundred medical practitioners from various parts of Kerala. Medical practitioners were asked to respond to various questions regarding their area of practise, their training in sexual medicine and about their perception and attitude towards patients' sexual health problems. Data collected and basic descriptive statistics were calculated. Results Out of 125 anonymous self-responsive survey questionnaires send to medical practitioners, we received hundred completed responses. Only 18% reported that they had some training in sexual medicine. Most of the medical practitioners are having the opinion that sexual problems are common in the society and only very few percentage (about 4%) seek help from medical practitioners regarding their sexual health issues. Anxiety and inhibition from the patient side to disclose and lack of privacy in the busy OPD are the major obstacles which prevent patients to seek medical help. Majority of doctors are reluctant to ask about their patients sexual issues. The participants identified that lack of time and privacy in the busy OPD and lack of proper training to address sexual issues are the major factors that prevent doctors from addressing sexual issues in their day to day clinical practice. Conclusion Sexual issues are common in the society. This study identified gaps in sexual health training among medical professionals in Kerala. Lack of proper training to address the sexual health issues is a major obstacle in managing sexual problems which can be addressed by improving training in sexual medicine to both medical students and medical practitioners. © Journal of the Association of Physicians of India 2011.Aim To study the clinical profile and outcome of the patients with kidney biopsy diagnosis of IgA Nephropathy (IgAN). Methods A retrospective study of the patients diagnosed IgAN over a period of three and half years. Results Sixty (13.5%) had a diagnosis of IgAN. Twenty four (40%) had a clinical diagnosis of rapidly progressive glomerulonephritis (RPGN), 20 (33.3%) chronic kidney disease (CKD), 11 (18.3%) nephrotic syndrome, three (5%) acute glomerulonephritis and two (3.3%) asymptomatic urinary abnormalities. Fifty-six (93.4%) patients had hypertension; 15 (25%) patients were presenting as a hypertensive crisis with malignant hypertension in two. Fifteen of the RPGN patients presented with the hypertensive crisis, and all of them had evidence of thrombotic microangiopathy (TMA) on biopsy. Three (5%) patients had secondary IgAN. Patients with the nephrotic syndrome responded to treatment and had a significantly higher renal survival. Patients with interstitial fibrosis and tubular atrophy (IFTA) ≥25% and mesangial hypercellularity score of >0.5 did not respond to treatment. Conclusion RPGN, CKD, and nephrotic syndrome were the typical manifestation of IgAN. Hypertension and hypertensive crisis were common. Response to treatment was seen in nephrotic syndrome whereas those with IFTA ≥25% and mesangial hypercellularity score of > 0.5 did not respond to treatment. © Journal of the Association of Physicians of India 2011.Aim Appropriate calculation of sample size and choosing the correct sampling technique are of paramount importance to produce studies that are capable of drawing clinically relevant conclusions with generalizability of results. The current study was planned with an objective to determine reporting of sample size and sampling considerations in clinical research articles published in the year 2017. Methods One high impact factor journal and one low impact factor journal belonging to the specialities of Medicine, Surgery, Obstetrics and Gynaecology, Paediatrics and Pharmacology were selected and checked for adherence to reporting of sample size and sampling considerations. Results A total of 264 articles were examined. These consisted of 55 interventional studies and 209 observational studies. Interventional studies showed higher reporting of sample size calculation/justification for sample size selection (29.1%) compared to observational studies (14.8%). Only 33 out of 155 articles from high impact factor journals and 14 out of 109 articles from low impact factor journals mentioned about sample size calculation or justified the sample size.
The most common etiology was pregnancy and puerperium, followed by hyperhomocysteinemia. Superior sagittal sinus was found to be the most common site of thrombosis in this study, in 17 (56.7%) of the patients. 17 patients (56.67%) recovered completely without any neurodeficit. 24 ( 80%) and 22 (66%) subjects had cerebral infarction secondary to CVT. 5 (16.67%) patients succumbed to thrombosis or complications, most commonly due to intracerebral haemorrhage and cerebral edema. Conclusion CVT is a disease with multifactorial, gender-related specific causes and has a wide and varied clinical spectrum. © Journal of the Association of Physicians of India 2011.Background Clinico-epidemiological profile of snake envenomation varies in different regions; however, data from India is inadequate. This study was planned to obtain such data from Goa, to help in quick identification of envenomation, prompt treatment and help in building a national database. https://www.selleckchem.com/products/poly-vinyl-alcohol.html Methods In this prospective observational study,all patients presenting to emergency department between April 2016 to August 2017 with history of snakebite and meeting inclusion and exclusion criteria were enrolled and analysed. Results 236 patients were screened, 156 were eligible. Mean age was 39.5±15.6; majority (n=122, 78.2%) were in the age group of 20-59 years; 119 (76.3%) were males. Seasonal variation was noted, highest number being in June, July and between September and December. Bites occurred commonly in housewives, students and retired personnel (n=108, 69.23%). 120 patients (76.9%) had hemotoxicity, 7 (4.5%) had neurotoxicity, 29 (18.6%) had only local reaction. Clinical features seen were bleeding (n= 40, 25.6%) , vomiting (n=15, 9.6%), giddiness/syncope (n=14, 9%), breathlessness (n=5, 3.2%), diplopia (n= 5,3.2%), ptosis (n=7, 4.5%), dysarthria (n=1, 0.6%), altered sensorium (n=7, 4.5%), oliguria (n=2, 1.3%), and chest pain (n=1, 0.6%). Majority (n= 117, 78.5%) received antivenom within 6 hours of bite. 31 patients (20.8%) developed reactions to antivenom, most were febrile reactions (n=12, 8.05%). Anaphylaxis occurred in 4 (2.68%) patients. Conclusion Snakebite is a common medical emergency in Goa, with distinct seasonal variation. There was no association between occupation and risk of bite. Hemotoxic and local cytotoxic features predominate in this area. Antivenom reactions though common, are usually mild. © Journal of the Association of Physicians of India 2011.Background Sexual problems are common in the society. But the medical professionals are reluctant to address sexual health issues. In this study we are assessing the attitude of medical practitioners towards various sexual health issues. Methods The study used anonymous self-responsive questionnaire survey of hundred medical practitioners from various parts of Kerala. Medical practitioners were asked to respond to various questions regarding their area of practise, their training in sexual medicine and about their perception and attitude towards patients' sexual health problems. Data collected and basic descriptive statistics were calculated. Results Out of 125 anonymous self-responsive survey questionnaires send to medical practitioners, we received hundred completed responses. Only 18% reported that they had some training in sexual medicine. Most of the medical practitioners are having the opinion that sexual problems are common in the society and only very few percentage (about 4%) seek help from medical practitioners regarding their sexual health issues. Anxiety and inhibition from the patient side to disclose and lack of privacy in the busy OPD are the major obstacles which prevent patients to seek medical help. Majority of doctors are reluctant to ask about their patients sexual issues. The participants identified that lack of time and privacy in the busy OPD and lack of proper training to address sexual issues are the major factors that prevent doctors from addressing sexual issues in their day to day clinical practice. Conclusion Sexual issues are common in the society. This study identified gaps in sexual health training among medical professionals in Kerala. Lack of proper training to address the sexual health issues is a major obstacle in managing sexual problems which can be addressed by improving training in sexual medicine to both medical students and medical practitioners. © Journal of the Association of Physicians of India 2011.Aim To study the clinical profile and outcome of the patients with kidney biopsy diagnosis of IgA Nephropathy (IgAN). Methods A retrospective study of the patients diagnosed IgAN over a period of three and half years. Results Sixty (13.5%) had a diagnosis of IgAN. Twenty four (40%) had a clinical diagnosis of rapidly progressive glomerulonephritis (RPGN), 20 (33.3%) chronic kidney disease (CKD), 11 (18.3%) nephrotic syndrome, three (5%) acute glomerulonephritis and two (3.3%) asymptomatic urinary abnormalities. Fifty-six (93.4%) patients had hypertension; 15 (25%) patients were presenting as a hypertensive crisis with malignant hypertension in two. Fifteen of the RPGN patients presented with the hypertensive crisis, and all of them had evidence of thrombotic microangiopathy (TMA) on biopsy. Three (5%) patients had secondary IgAN. Patients with the nephrotic syndrome responded to treatment and had a significantly higher renal survival. Patients with interstitial fibrosis and tubular atrophy (IFTA) ≥25% and mesangial hypercellularity score of >0.5 did not respond to treatment. Conclusion RPGN, CKD, and nephrotic syndrome were the typical manifestation of IgAN. Hypertension and hypertensive crisis were common. Response to treatment was seen in nephrotic syndrome whereas those with IFTA ≥25% and mesangial hypercellularity score of > 0.5 did not respond to treatment. © Journal of the Association of Physicians of India 2011.Aim Appropriate calculation of sample size and choosing the correct sampling technique are of paramount importance to produce studies that are capable of drawing clinically relevant conclusions with generalizability of results. The current study was planned with an objective to determine reporting of sample size and sampling considerations in clinical research articles published in the year 2017. Methods One high impact factor journal and one low impact factor journal belonging to the specialities of Medicine, Surgery, Obstetrics and Gynaecology, Paediatrics and Pharmacology were selected and checked for adherence to reporting of sample size and sampling considerations. Results A total of 264 articles were examined. These consisted of 55 interventional studies and 209 observational studies. Interventional studies showed higher reporting of sample size calculation/justification for sample size selection (29.1%) compared to observational studies (14.8%). Only 33 out of 155 articles from high impact factor journals and 14 out of 109 articles from low impact factor journals mentioned about sample size calculation or justified the sample size.0 Kommentare 0 Geteilt 22 Ansichten 0 Bewertungen -
Phenoxy- and naphthoxy-substituted bisphenol-bridged cyclic phosphazenes were synthesized in 2 steps and their thermal, photophysical, and electrochemical properties were investigated. The structures of the cyclic phosphazene compounds were determined by ESI-MS mass spectrometry and 1 H, 13 C, and 31 P NMR spectroscopies. The photophysical studies of phenoxy- and naphthoxy-substituted bridged cyclophosphazenes were investigated by means of absorption and fluorescence spectroscopies in different solvents. Thermal and electrochemical properties of the target compounds were also studied. Furthermore, the excimer emissions through intramolecular interactions in solution and in solid state were investigated by fluorescence spectroscopy and the theoretical calculations were performed in detail using DFT.In this study, a series of cyclotriphosphazene derivatives containing a Schiff base (3a-3d) were synthesized by the reactions of hexachlorocyclotriphosphazene (1) with bis-aryl Schiff bases ( 2a - 2d ) having different terminal groups (H, F, Cl, and Br). The products ( 3a - 3d ) were characterized by elemental and mass analyses, FT-IR, and 1 H, 13 C, and 31 P NMR spectroscopies. Furthermore, the structure of compound 3a was also determined by X-ray crystallography. The thermal behaviors and the spectral properties of the new cyclotriphosphazene compounds ( 3a - 3d ) were investigated and the results were compared in the series.The Cl replacement reactions of hexachlorocyclotriphosphazene (trimer; N 3 P 3 Cl 6 ) with sodium (N-benzyl)- aminopropanoxides (1 and 2) produced monospiro- (3 and 4), cis-, and trans-dispirocyclotriphosphazenes (13-16). The monospiro tetrakis-aminocyclotriphosphazenes (5-12) were obtained by the Cl substitutions of 3 and 4 with different secondary amines. The cis- (13 and 14) and trans-dispirophosphazenes (15 and 16) possessed 2 chiral P centers, and they were able to present meso and racemic forms, respectively. Moreover, the structures of compounds 5 and 14 were designated using X-ray data. The absolute configuration of compound 14 was found as SR in the solid state. Analytical and spectroscopic data of the phosphazenes were consistent with their suggested structures. Antimicrobial activities of the benzyl-pendant-armed cyclotriphosphazenes were scrutinized against G(+) and G(-) bacteria and yeast strains. The bacterium most affected by the synthesized compounds was Pseudomonas aeruginosa . Minimum inhibitory concentrations and minimal bacterial concentrations were in the range of 125-500 μM. Interactions between the phosphazenes (3-12 and 15) and plasmid DNA were studied with agarose gel electrophoresis. The phosphazene- DNA interaction studies of the cyclotriphosphazenes revealed that phosphazenes 3, 4, and 15 had a substantial effect on supercoiled DNA by cleavage of the double helix.In the present work, pyrene-boron-dipyrromethene (BODIPY)-substituted novel water-soluble cyclotriphosphazene derivatives (6 and 7) were synthesized by click reactions between a cyclotriphosphazene derivative with a hydrophilic glycol side group (2) and BODIPYs (4 and 5). All of the new compounds (2, 6, and 7) were characterized by Fourier-transform infrared and nuclear magnetic resonance spectroscopy, as well as mass spectrometry and elemental analysis. The photophysical properties of the BODIPY-substituted cyclotriphosphazenes (6 and 7) were investigated by UV-Vis and fluorescence emission spectroscopy in water and water/solvent mixtures. It was found that the target compounds were soluble in water and could be potential candidates as water-soluble fluorescent dyes for the desired applications.
Learning management systems (LMSs) have not been explored from an educational design research (EDR) perspective for developing clinical curricula and supporting novice clinical students with self-regulated learning during their early clinical rotations.
An EDR approach was used to inform a de novo implementation of an LMS during an early clinical rotation of medical students. The EDR consisted of three phases analysis and exploration; design and construction; and evaluation and reflection. Process and evaluation data (including academic years 2018 and 2019) from two student cohorts (total n = 190, 107 without and 83 with LMS exposure) at one academic teaching hospital were analyzed.
Learning theories and concepts of self-regulated learning were used to develop and implement an LMS clerkship prototype. For design and construction, the maturing prototype design included flipped-classroom elements, in-class activation, voluntary digital self-assessments, and clinical teaching videos. For evaluation and refly help to achieve educational outcomes.
Our data indicate that using an EDR approach was helpful for systematically introducing an LMS in a clerkship curriculum informed by learning theory. Our evidence-oriented curriculum reform was associated with higher student satisfaction and appeared to support self-regulated learning in the workplace. Further research should explore which elements of an LMS most effectively help to achieve educational outcomes.
Gender bias in clinical training has been well established; however, little is known about how perceptions differ between men and women. Furthermore, few curricular options have been developed to discuss gender bias.
To measure the prevalence of gender bias, examine qualitative differences between men and women, and create a gender bias curriculum for internal medicine residents.
We surveyed 114 residents (response rate of 53.5%) to identify the prevalence and types of gender bias experienced in training. We compared estimates between genders and organized qualitative results into shared themes. We then developed a curriculum to promote and normalize discussions of gender bias.
Among surveyed residents, 61% reported personal experiences of gender bias during training, with 98% of women and 19% of men reporting experiences when stratified by gender. https://www.selleckchem.com/EGFR(HER).html We identified two domains in which gender bias manifested role misidentification and a difficult working environment. Residents identified action items that led to the development of a gender bias curriculum.
Phenoxy- and naphthoxy-substituted bisphenol-bridged cyclic phosphazenes were synthesized in 2 steps and their thermal, photophysical, and electrochemical properties were investigated. The structures of the cyclic phosphazene compounds were determined by ESI-MS mass spectrometry and 1 H, 13 C, and 31 P NMR spectroscopies. The photophysical studies of phenoxy- and naphthoxy-substituted bridged cyclophosphazenes were investigated by means of absorption and fluorescence spectroscopies in different solvents. Thermal and electrochemical properties of the target compounds were also studied. Furthermore, the excimer emissions through intramolecular interactions in solution and in solid state were investigated by fluorescence spectroscopy and the theoretical calculations were performed in detail using DFT.In this study, a series of cyclotriphosphazene derivatives containing a Schiff base (3a-3d) were synthesized by the reactions of hexachlorocyclotriphosphazene (1) with bis-aryl Schiff bases ( 2a - 2d ) having different terminal groups (H, F, Cl, and Br). The products ( 3a - 3d ) were characterized by elemental and mass analyses, FT-IR, and 1 H, 13 C, and 31 P NMR spectroscopies. Furthermore, the structure of compound 3a was also determined by X-ray crystallography. The thermal behaviors and the spectral properties of the new cyclotriphosphazene compounds ( 3a - 3d ) were investigated and the results were compared in the series.The Cl replacement reactions of hexachlorocyclotriphosphazene (trimer; N 3 P 3 Cl 6 ) with sodium (N-benzyl)- aminopropanoxides (1 and 2) produced monospiro- (3 and 4), cis-, and trans-dispirocyclotriphosphazenes (13-16). The monospiro tetrakis-aminocyclotriphosphazenes (5-12) were obtained by the Cl substitutions of 3 and 4 with different secondary amines. The cis- (13 and 14) and trans-dispirophosphazenes (15 and 16) possessed 2 chiral P centers, and they were able to present meso and racemic forms, respectively. Moreover, the structures of compounds 5 and 14 were designated using X-ray data. The absolute configuration of compound 14 was found as SR in the solid state. Analytical and spectroscopic data of the phosphazenes were consistent with their suggested structures. Antimicrobial activities of the benzyl-pendant-armed cyclotriphosphazenes were scrutinized against G(+) and G(-) bacteria and yeast strains. The bacterium most affected by the synthesized compounds was Pseudomonas aeruginosa . Minimum inhibitory concentrations and minimal bacterial concentrations were in the range of 125-500 μM. Interactions between the phosphazenes (3-12 and 15) and plasmid DNA were studied with agarose gel electrophoresis. The phosphazene- DNA interaction studies of the cyclotriphosphazenes revealed that phosphazenes 3, 4, and 15 had a substantial effect on supercoiled DNA by cleavage of the double helix.In the present work, pyrene-boron-dipyrromethene (BODIPY)-substituted novel water-soluble cyclotriphosphazene derivatives (6 and 7) were synthesized by click reactions between a cyclotriphosphazene derivative with a hydrophilic glycol side group (2) and BODIPYs (4 and 5). All of the new compounds (2, 6, and 7) were characterized by Fourier-transform infrared and nuclear magnetic resonance spectroscopy, as well as mass spectrometry and elemental analysis. The photophysical properties of the BODIPY-substituted cyclotriphosphazenes (6 and 7) were investigated by UV-Vis and fluorescence emission spectroscopy in water and water/solvent mixtures. It was found that the target compounds were soluble in water and could be potential candidates as water-soluble fluorescent dyes for the desired applications. Learning management systems (LMSs) have not been explored from an educational design research (EDR) perspective for developing clinical curricula and supporting novice clinical students with self-regulated learning during their early clinical rotations. An EDR approach was used to inform a de novo implementation of an LMS during an early clinical rotation of medical students. The EDR consisted of three phases analysis and exploration; design and construction; and evaluation and reflection. Process and evaluation data (including academic years 2018 and 2019) from two student cohorts (total n = 190, 107 without and 83 with LMS exposure) at one academic teaching hospital were analyzed. Learning theories and concepts of self-regulated learning were used to develop and implement an LMS clerkship prototype. For design and construction, the maturing prototype design included flipped-classroom elements, in-class activation, voluntary digital self-assessments, and clinical teaching videos. For evaluation and refly help to achieve educational outcomes. Our data indicate that using an EDR approach was helpful for systematically introducing an LMS in a clerkship curriculum informed by learning theory. Our evidence-oriented curriculum reform was associated with higher student satisfaction and appeared to support self-regulated learning in the workplace. Further research should explore which elements of an LMS most effectively help to achieve educational outcomes. Gender bias in clinical training has been well established; however, little is known about how perceptions differ between men and women. Furthermore, few curricular options have been developed to discuss gender bias. To measure the prevalence of gender bias, examine qualitative differences between men and women, and create a gender bias curriculum for internal medicine residents. We surveyed 114 residents (response rate of 53.5%) to identify the prevalence and types of gender bias experienced in training. We compared estimates between genders and organized qualitative results into shared themes. We then developed a curriculum to promote and normalize discussions of gender bias. Among surveyed residents, 61% reported personal experiences of gender bias during training, with 98% of women and 19% of men reporting experiences when stratified by gender. https://www.selleckchem.com/EGFR(HER).html We identified two domains in which gender bias manifested role misidentification and a difficult working environment. Residents identified action items that led to the development of a gender bias curriculum.0 Kommentare 0 Geteilt 22 Ansichten 0 Bewertungen -
the ejaculatory function and satisfactory voiding function results.
Dry eye syndrome is known to develop from several systemic inflammatory diseases. Although dry eye may develop due to extraintestinal complications of ulcerative colitis (UC), the pathogenesis is not well-known. This study aimed to investigate whether there was decrease in the tear secretion volume in a **** model with UC; the difference between the control and dextran sodium sulphate (DSS)-treated group was also determined.
This study included a **** model with UC induced by the oral administration of 5.0% DSS for 7 days. Following the DSS treatment, the tear volume was measured using the Schirmer's test. The colon and ocular tissues, including the lacrimal gland, were evaluated using histological and protein analyses. Additionally, tumour necrosis factor (TNF)-α and interleukin (IL)-6 in the plasma were determined. Differences between groups (DSS-treated versus control ****) were determined using Student's
-test.
The tear volume in DSS-treated **** was decreased compared to that in the control ****.ould contribute to the development of treatment approaches for dry eye associated with UC.
To evaluate whetherdaily mobile-phone delivered messages with training instructions during three months increase physical activity and overall mobility in patients soon after stroke or transient ischemic attack.
Randomised controlled trial with intention-to-treat analyses.
University hospital. Data collection from November 2016 until December2018.
Seventy-nine patients (mean (SD) age 63.9 (10.4) years, 29 were women) were allocated to either intervention (
= 40) or control group (
= 39). Participants had to be independent (modified Ranking Scale ⩽2) and able to perform the six-minute walking test at discharge from the hospital.
The intervention group received standard care and daily mobile phone instructional text messages to perform regular outdoor walking and functional leg exercises. The control group received standard care; that is, primary care follow-up.
Walking performance by six-minute walking test (m), lower body strength by five times chair-stand test (s), the short physical performance battery (0-12 points) and 10-metres walk test (m/s) were assessed at baseline and after three months.
The estimated median difference in the six-minute walking test was in favour of the intervention group by 30 metres (95% CI, 55 to 1; effect size 0.64;
= 0.037) and in the chair-stand test by 0.88 seconds (95% CI, 0.02 to 1.72; effect size 0.64;
= 0.034). There were no differences between groups on the short physical performance battery or in 10-metres walking time.
Three months of daily mobile phone text messages with guided training instructions improved composite mobility measures; that is, walking performanceand lower body strength.
The study is registered with ClinicalTrials.gov, number NCT02902367.
The study is registered with ClinicalTrials.gov, number NCT02902367.
Interventional therapies aiming at excluding the left atrial appendage (LAA) from systemic circulation have been established as a valid alternative to oral anticoagulation in patients at high thromboembolic risk. However, their efficacy on stroke prophylaxis may be compromised owing to incomplete LAA closure. Additionally, the need for an alternative thromboembolic prevention may remain unmet in patients with contraindications to oral anticoagulation whose appendage anatomy is unsuitable for some conventional devices commercially available. We aimed at evaluating the feasibility of LAA closure with the novel Gore Cardioform Septal Occluder in patients with incomplete appendage ligation or anatomic features which do not meet the manufacturer's requirements for Watchman deployment.
Twenty-one consecutive patients (mean age 72±6 years; 85.7% males; CHA
DS
-VASc 4.5±1.4; HAS-BLED 3.6±1.0) were included. Transesophageal echocardiography was performed within 2 months to assess for residual LAA patency.
Fourdage ligation or whose LAA anatomy does not meet the minimal anatomic criteria to accommodate a Watchman device. Graphic Abstract A graphic abstract is available for this article.Current research needs to be more focused on agronomical plants to effectively utilize the knowledge obtained from model plant species. Efforts to improve legumes have long employed common breeding tools. Recently, biotechnological approaches facilitated the development of improved legumes with new traits, allowing them to withstand climatic changes and biotic stress. Owing to its multiple uses and profits, alfalfa (Medicago sativa L.) has become a prominent forage crop worldwide. This review provides a comprehensive research summary of tissue culture-based genetic transformation methods, which could be exploited for the development of transgenic alfalfa with agronomically desirable traits. Moreover, advanced bio-imaging approaches, including cutting-edge microscopy and phenotyping, are outlined here. Finally, characterization and the employment of beneficial microbes should help to produce biotechnologically improved and sustainable alfalfa cultivars.Here we advocate Cancer Community Ecology as a valuable focus of study in Cancer Biology. We hypothesize that the heterogeneity and characteristics of cancer cells within tumors should vary systematically in space and time and that cancer cells form local ecological communities within tumors. https://www.selleckchem.com/GSK-3.html These communities possess limited numbers of species determined by local conditions, with each species in a community possessing predictable traits that enable them to cope with their particular environment and coexist with each other. We start with a discussion of concepts and assumptions that ecologists use to study closely related species. We then discuss the competitive exclusion principle as a means for knowing when two species should not coexist, and as an opening towards understanding how they can. We present the five major categories of mechanisms of coexistence that operate in nature and suggest that the same mechanisms apply towards understanding the diversification and coexistence of cancer cell species. They are Food-Safety Tradeoffs, Diet Choice, Habitat Selection, Variance Partitioning, and Competition-Colonization Tradeoffs.
the ejaculatory function and satisfactory voiding function results. Dry eye syndrome is known to develop from several systemic inflammatory diseases. Although dry eye may develop due to extraintestinal complications of ulcerative colitis (UC), the pathogenesis is not well-known. This study aimed to investigate whether there was decrease in the tear secretion volume in a mice model with UC; the difference between the control and dextran sodium sulphate (DSS)-treated group was also determined. This study included a mice model with UC induced by the oral administration of 5.0% DSS for 7 days. Following the DSS treatment, the tear volume was measured using the Schirmer's test. The colon and ocular tissues, including the lacrimal gland, were evaluated using histological and protein analyses. Additionally, tumour necrosis factor (TNF)-α and interleukin (IL)-6 in the plasma were determined. Differences between groups (DSS-treated versus control mice) were determined using Student's -test. The tear volume in DSS-treated mice was decreased compared to that in the control mice.ould contribute to the development of treatment approaches for dry eye associated with UC. To evaluate whetherdaily mobile-phone delivered messages with training instructions during three months increase physical activity and overall mobility in patients soon after stroke or transient ischemic attack. Randomised controlled trial with intention-to-treat analyses. University hospital. Data collection from November 2016 until December2018. Seventy-nine patients (mean (SD) age 63.9 (10.4) years, 29 were women) were allocated to either intervention ( = 40) or control group ( = 39). Participants had to be independent (modified Ranking Scale ⩽2) and able to perform the six-minute walking test at discharge from the hospital. The intervention group received standard care and daily mobile phone instructional text messages to perform regular outdoor walking and functional leg exercises. The control group received standard care; that is, primary care follow-up. Walking performance by six-minute walking test (m), lower body strength by five times chair-stand test (s), the short physical performance battery (0-12 points) and 10-metres walk test (m/s) were assessed at baseline and after three months. The estimated median difference in the six-minute walking test was in favour of the intervention group by 30 metres (95% CI, 55 to 1; effect size 0.64; = 0.037) and in the chair-stand test by 0.88 seconds (95% CI, 0.02 to 1.72; effect size 0.64; = 0.034). There were no differences between groups on the short physical performance battery or in 10-metres walking time. Three months of daily mobile phone text messages with guided training instructions improved composite mobility measures; that is, walking performanceand lower body strength. The study is registered with ClinicalTrials.gov, number NCT02902367. The study is registered with ClinicalTrials.gov, number NCT02902367. Interventional therapies aiming at excluding the left atrial appendage (LAA) from systemic circulation have been established as a valid alternative to oral anticoagulation in patients at high thromboembolic risk. However, their efficacy on stroke prophylaxis may be compromised owing to incomplete LAA closure. Additionally, the need for an alternative thromboembolic prevention may remain unmet in patients with contraindications to oral anticoagulation whose appendage anatomy is unsuitable for some conventional devices commercially available. We aimed at evaluating the feasibility of LAA closure with the novel Gore Cardioform Septal Occluder in patients with incomplete appendage ligation or anatomic features which do not meet the manufacturer's requirements for Watchman deployment. Twenty-one consecutive patients (mean age 72±6 years; 85.7% males; CHA DS -VASc 4.5±1.4; HAS-BLED 3.6±1.0) were included. Transesophageal echocardiography was performed within 2 months to assess for residual LAA patency. Fourdage ligation or whose LAA anatomy does not meet the minimal anatomic criteria to accommodate a Watchman device. Graphic Abstract A graphic abstract is available for this article.Current research needs to be more focused on agronomical plants to effectively utilize the knowledge obtained from model plant species. Efforts to improve legumes have long employed common breeding tools. Recently, biotechnological approaches facilitated the development of improved legumes with new traits, allowing them to withstand climatic changes and biotic stress. Owing to its multiple uses and profits, alfalfa (Medicago sativa L.) has become a prominent forage crop worldwide. This review provides a comprehensive research summary of tissue culture-based genetic transformation methods, which could be exploited for the development of transgenic alfalfa with agronomically desirable traits. Moreover, advanced bio-imaging approaches, including cutting-edge microscopy and phenotyping, are outlined here. Finally, characterization and the employment of beneficial microbes should help to produce biotechnologically improved and sustainable alfalfa cultivars.Here we advocate Cancer Community Ecology as a valuable focus of study in Cancer Biology. We hypothesize that the heterogeneity and characteristics of cancer cells within tumors should vary systematically in space and time and that cancer cells form local ecological communities within tumors. https://www.selleckchem.com/GSK-3.html These communities possess limited numbers of species determined by local conditions, with each species in a community possessing predictable traits that enable them to cope with their particular environment and coexist with each other. We start with a discussion of concepts and assumptions that ecologists use to study closely related species. We then discuss the competitive exclusion principle as a means for knowing when two species should not coexist, and as an opening towards understanding how they can. We present the five major categories of mechanisms of coexistence that operate in nature and suggest that the same mechanisms apply towards understanding the diversification and coexistence of cancer cell species. They are Food-Safety Tradeoffs, Diet Choice, Habitat Selection, Variance Partitioning, and Competition-Colonization Tradeoffs.0 Kommentare 0 Geteilt 22 Ansichten 0 Bewertungen -
Previous studies have shown that nicorandil has a protective effect on cardiomyocytes. However, there is no study to investigate whether perioperative intravenous nicorandil can further reduce the myocardial infarct size in patients with ST-segment elevation myocardial infarction (STEMI) compared to the current standard of percutaneous coronary intervention (PCI) regimen. The CHANGE (China-Admini stration of Nicorandil Group) study is a multicenter, prospective, randomized, double-blind and parallel-controlled clinical study of STEMI patients undergoing primary PCI in China, aiming to evaluate the efficacy and safety of intravenous nicorandil in ameliorating the myocar dial infarct size in STEMI patients undergoing primary PCI and provide evidence-based support for myocardial protection strategies of STEMI patients.Intermediate- and high-risk pulmonary embolism (PE) is a life-threatening medical emergency with high morbidity and mortality. Many of the treatment options for PE involve clinicians from multiple disciplines. Pulmonary Embolism Response Teams (PERTs) have been developed to coordinate the multidisciplinary team of clinicians to streamline the decision making process and develop individualised treatment plans in a timely fashion. The first PERT was established in 2012 and subsequently multiple centres worldwide have introduced this model for the management of intermediate- and high-risk PE. In this review, we evaluate the organisational structure and algorithms of different PERT services and compare data from pre- and post-PERT services to determine the impact of PERT on outcomes. We consider the cost and time implications of this multidisciplinary 24-hour service and suggest areas for further research and review.
Though engaging patients with atrial fibrillation (AF) in understanding their stroke risk is encouraged by guidelines, little is known regarding AF patients' perceived stroke risk or its relationship with oral anticoagulation (OAC) use. We aim to identify factors associated with underestimation of stroke risk among older patients with AF and relate this to OAC use.
Data are from the ongoing SAGE (Systematic Assessment of Geriatric Elements)-AF study, which included older patients (> 65 years) with non-valvular AF and a CHA
DS
-VASc score of ≥ 2. Participants reported their perceived risk of having a stroke without OAC. We compared the perceived risk to CHA
DS
-VASc predicted stroke risk and classified participants as "over" or "under" estimators, and identified factors associated with underestimation of risk using multiple logistic regression.
The average CHA
DS
-VASc score of 915 participants (average age 75 years, 47% female, 86% white) was 4.3 ± 1.6, 43% of participants had discordant predicgesting that successful efforts to educate patients about their stroke risk may influence treatment choices.
To estimate the prevalence of unknown atrial fibrillation (AF) in the elderly population of the Veneto Region, Italy.
1820 patients aged ≥ 65 years with no history of AF and not anticoagulated were enrolled in primary-care settings. They underwent an opportunistic electrocardiogram screening with a handheld device (MyDiagnostick) designed to specifically detect AF. The electrocardiogram recordings were reviewed by the researchers, who confirmed the presence of AF.
The device detected an arrhythmia in 143 patients, which was confirmed as AF in 101/143 (70.6%), with an overall prevalence of AF of 5.5% (101/1820). Prevalence of unknown AF resulted in 3.6% in patients aged 65-74 years, and 7.5% in patients age 75 or older, and increased according to CHA
DS
-VASc score 3.5% in patients with a score of 1 or 2, 5.6% in patients with a score of 3, 7.0% in patients with a score of 4, and 7.2% in patients with a score ≥ 5. The detection rate was significantly higher in patients with mild symptoms compared to asymptomatic counterparts (24.1%
4.0%,
< 0.0001). At multivariate analysis, congestive heart failure and age ≥ 75 years-old were independent predictors for screen-detected AF.
An opportunistic screening with handheld device revealed an unexpectedly high prevalence of unknown AF in elderly patients with mild symptoms. Prevalence increased with age and CHA
DS
-VASc score.
An opportunistic screening with handheld device revealed an unexpectedly high prevalence of unknown AF in elderly patients with mild symptoms. https://www.selleckchem.com/products/Rapamycin.html Prevalence increased with age and CHA2DS2-VASc score.
Information on the relationship between red blood cell distribution width (RDW) and atrial fibrillation (AF) in patients with essential hypertension are scarce. The study aimed to assess the relationship between AF and RDW in hypertensive patients.
We enrolled 432 hypertensive patients, including 350 AF patients and 82 patients as controls. Patients' demographic, clinical, laboratory and echocardiographic characteristics were recorded. The AF patients were further divided into the persistent and paroxysmal AF subgroups. Electrocardiograms were monitored to identify the cardiac rhythm during blood sampling, and based on the rhythm, the paroxysmal AF group was categorized into the presence (with AF rhythm during blood sampling) and absence (with sinus rhythm during blood sampling) groups.
The AF group had elevated RDW levels than the controls (12.7% ± 0.8%
12.4% ± 0.7%,
= 0.002), and the persistent AF subgroup had higher RDW levels than the paroxysmal AF subgroup (12.9% ± 0.8%
12.6% ± 0.8%,
= 0.007). Furthermore, in the paroxysmal AF group, the presence group had higher RDW levels than the absence group (13.0% ± 0.6%
12.5% ± 0.9%,
= 0.001). There was no significant difference in RDW levels between the persistent AF subgroup and presence group of the paroxysmal AF subgroup (
= 0.533) and between the absence group of the paroxysmal AF subgroup and control group (
= 0.262). In multivariate regression analysis, in hypertensive patients, the presence of AF rhythm is an independent predictor for increased RDW concentration (
= 0.001).
The RDW may be associated with the presence of AF rhythm, which implies the importance of maintaining the sinus rhythm in hypertensive patients.
The RDW may be associated with the presence of AF rhythm, which implies the importance of maintaining the sinus rhythm in hypertensive patients.
Previous studies have shown that nicorandil has a protective effect on cardiomyocytes. However, there is no study to investigate whether perioperative intravenous nicorandil can further reduce the myocardial infarct size in patients with ST-segment elevation myocardial infarction (STEMI) compared to the current standard of percutaneous coronary intervention (PCI) regimen. The CHANGE (China-Admini stration of Nicorandil Group) study is a multicenter, prospective, randomized, double-blind and parallel-controlled clinical study of STEMI patients undergoing primary PCI in China, aiming to evaluate the efficacy and safety of intravenous nicorandil in ameliorating the myocar dial infarct size in STEMI patients undergoing primary PCI and provide evidence-based support for myocardial protection strategies of STEMI patients.Intermediate- and high-risk pulmonary embolism (PE) is a life-threatening medical emergency with high morbidity and mortality. Many of the treatment options for PE involve clinicians from multiple disciplines. Pulmonary Embolism Response Teams (PERTs) have been developed to coordinate the multidisciplinary team of clinicians to streamline the decision making process and develop individualised treatment plans in a timely fashion. The first PERT was established in 2012 and subsequently multiple centres worldwide have introduced this model for the management of intermediate- and high-risk PE. In this review, we evaluate the organisational structure and algorithms of different PERT services and compare data from pre- and post-PERT services to determine the impact of PERT on outcomes. We consider the cost and time implications of this multidisciplinary 24-hour service and suggest areas for further research and review. Though engaging patients with atrial fibrillation (AF) in understanding their stroke risk is encouraged by guidelines, little is known regarding AF patients' perceived stroke risk or its relationship with oral anticoagulation (OAC) use. We aim to identify factors associated with underestimation of stroke risk among older patients with AF and relate this to OAC use. Data are from the ongoing SAGE (Systematic Assessment of Geriatric Elements)-AF study, which included older patients (> 65 years) with non-valvular AF and a CHA DS -VASc score of ≥ 2. Participants reported their perceived risk of having a stroke without OAC. We compared the perceived risk to CHA DS -VASc predicted stroke risk and classified participants as "over" or "under" estimators, and identified factors associated with underestimation of risk using multiple logistic regression. The average CHA DS -VASc score of 915 participants (average age 75 years, 47% female, 86% white) was 4.3 ± 1.6, 43% of participants had discordant predicgesting that successful efforts to educate patients about their stroke risk may influence treatment choices. To estimate the prevalence of unknown atrial fibrillation (AF) in the elderly population of the Veneto Region, Italy. 1820 patients aged ≥ 65 years with no history of AF and not anticoagulated were enrolled in primary-care settings. They underwent an opportunistic electrocardiogram screening with a handheld device (MyDiagnostick) designed to specifically detect AF. The electrocardiogram recordings were reviewed by the researchers, who confirmed the presence of AF. The device detected an arrhythmia in 143 patients, which was confirmed as AF in 101/143 (70.6%), with an overall prevalence of AF of 5.5% (101/1820). Prevalence of unknown AF resulted in 3.6% in patients aged 65-74 years, and 7.5% in patients age 75 or older, and increased according to CHA DS -VASc score 3.5% in patients with a score of 1 or 2, 5.6% in patients with a score of 3, 7.0% in patients with a score of 4, and 7.2% in patients with a score ≥ 5. The detection rate was significantly higher in patients with mild symptoms compared to asymptomatic counterparts (24.1% 4.0%, < 0.0001). At multivariate analysis, congestive heart failure and age ≥ 75 years-old were independent predictors for screen-detected AF. An opportunistic screening with handheld device revealed an unexpectedly high prevalence of unknown AF in elderly patients with mild symptoms. Prevalence increased with age and CHA DS -VASc score. An opportunistic screening with handheld device revealed an unexpectedly high prevalence of unknown AF in elderly patients with mild symptoms. https://www.selleckchem.com/products/Rapamycin.html Prevalence increased with age and CHA2DS2-VASc score. Information on the relationship between red blood cell distribution width (RDW) and atrial fibrillation (AF) in patients with essential hypertension are scarce. The study aimed to assess the relationship between AF and RDW in hypertensive patients. We enrolled 432 hypertensive patients, including 350 AF patients and 82 patients as controls. Patients' demographic, clinical, laboratory and echocardiographic characteristics were recorded. The AF patients were further divided into the persistent and paroxysmal AF subgroups. Electrocardiograms were monitored to identify the cardiac rhythm during blood sampling, and based on the rhythm, the paroxysmal AF group was categorized into the presence (with AF rhythm during blood sampling) and absence (with sinus rhythm during blood sampling) groups. The AF group had elevated RDW levels than the controls (12.7% ± 0.8% 12.4% ± 0.7%, = 0.002), and the persistent AF subgroup had higher RDW levels than the paroxysmal AF subgroup (12.9% ± 0.8% 12.6% ± 0.8%, = 0.007). Furthermore, in the paroxysmal AF group, the presence group had higher RDW levels than the absence group (13.0% ± 0.6% 12.5% ± 0.9%, = 0.001). There was no significant difference in RDW levels between the persistent AF subgroup and presence group of the paroxysmal AF subgroup ( = 0.533) and between the absence group of the paroxysmal AF subgroup and control group ( = 0.262). In multivariate regression analysis, in hypertensive patients, the presence of AF rhythm is an independent predictor for increased RDW concentration ( = 0.001). The RDW may be associated with the presence of AF rhythm, which implies the importance of maintaining the sinus rhythm in hypertensive patients. The RDW may be associated with the presence of AF rhythm, which implies the importance of maintaining the sinus rhythm in hypertensive patients.0 Kommentare 0 Geteilt 35 Ansichten 0 Bewertungen -
from two simulated metagenomes among those provided in benchmarking analysis and on a real metagenome from the Human Microbiome Project. https://www.selleckchem.com/products/1-phenyl-2-thiourea.html The experiment results on the simulated data show that LiME is competitive with the widely used taxonomic classifiers. It achieves high levels of precision and specificity - e.g. 99.9% of the positive control reads are correctly assigned and the percentage of classified reads of the negative control is less than 0.01% - while keeping a high sensitivity. On the real metagenome, we show that LiME is able to deliver classification results comparable to that of MagicBlast. Overall, the experiments confirm the effectiveness of our method and its high accuracy even in negative control samples.
Protein phosphorylation networks play an important role in cell signaling. In these networks, phosphorylation of a protein kinase usually leads to its activation, which in turn will phosphorylate its downstream target proteins. A phosphorylation network is essentially a causal network, which can be learned by causal inference algorithms. Prior efforts have applied such algorithms to data measuring protein phosphorylation levels, assuming that the phosphorylation levels represent protein activity states. However, the phosphorylation status of a kinase does not always reflect its activity state, because interventions such as inhibitors or mutations can directly affect its activity state without changing its phosphorylation status. Thus, when cellular systems are subjected to extensive perturbations, the statistical relationships between phosphorylation states of proteins may be disrupted, making it difficult to reconstruct the true protein phosphorylation network. Here, we describe a novel framework to addresof the protein activity states by our novel framework significantly enhances causal discovery of protein phosphorylation networks.
Explicit representation of the protein activity states by our novel framework significantly enhances causal discovery of protein phosphorylation networks.
Positron Emission Tomography (PET) is increasingly utilized in radiomics studies for treatment evaluation purposes. Nevertheless, lesion volume identification in PET images is a critical and still challenging step in the process of radiomics, due to the low spatial resolution and high noise level of PET images. Currently, the biological target volume (BTV) is manually contoured by nuclear physicians, with a time expensive and operator-dependent procedure. This study aims to obtain BTVs from cerebral metastases in patients who underwent L-[
C]methionine (11C-MET) PET, using a fully automatic procedure and to use these BTVs to extract radiomics features to stratify between patients who respond to treatment or not. For these purposes, 31 brain metastases, for predictive evaluation, and 25 ones, for follow-up evaluation after treatment, were delineated using the proposed method. Successively, 11C-MET PET studies and related volumetric segmentations were used to extract 108 features to investigate the potentialoposed system is able i) to extract 108 features for each automatically segmented lesion and ii) to select a sub-panel of 11C-MET PET features (3 and 8 in the case of predictive and follow-up evaluation), with valuable association with patient outcome. We believe that our model can be useful to improve treatment response and prognosis evaluation, potentially allowing the personalization of cancer treatment plans.
The proposed system is able i) to extract 108 features for each automatically segmented lesion and ii) to select a sub-panel of 11C-MET PET features (3 and 8 in the case of predictive and follow-up evaluation), with valuable association with patient outcome. We believe that our model can be useful to improve treatment response and prognosis evaluation, potentially allowing the personalization of cancer treatment plans.
A Virtual Screening algorithm has to adapt to the different stages of this process. Early screening needs to ensure that all bioactive compounds are ranked in the first positions despite of the number of false positives, while a second screening round is aimed at increasing the prediction accuracy.
A novel CNN architecture is presented to this aim, which predicts bioactivity of candidate compounds on CDK1 using a combination of molecular fingerprints as their vector representation, and has been trained suitably to achieve good results as regards both enrichment factor and accuracy in different screening modes (98.55% accuracy in active-only selection, and 98.88% in high precision discrimination).
The proposed architecture outperforms state-of-the-art ML approaches, and some interesting insights on molecular fingerprints are devised.
The proposed architecture outperforms state-of-the-art ML approaches, and some interesting insights on molecular fingerprints are devised.
In [Prezza et al., AMB 2019], a new reference-free and alignment-free framework for the detection of SNPs was suggested and tested. The framework, based on the Burrows-Wheeler Transform (BWT), significantly improves sensitivity and precision of previous de Bruijn graphs based tools by overcoming several of their limitations, namely (i) the need to establish a fixed value, usually small, for the order k, (ii) the loss of important information such as k-mer coverage and adjacency of k-mers within the same read, and (iii) bad performance in repeated regions longer than k bases. The preliminary tool, however, was able to identify only SNPs and it was too slow and memory consuming due to the use of additional heavy data structures (namely, the Suffix and LCP arrays), besides the BWT.
In this paper, we introduce a new algorithm and the corresponding tool ebwt2InDel that (i) extend the framework of [Prezza et al., AMB 2019] to detect also INDELs, and (ii) implements recent algorithmic findings that allow to perffind up to 83% of the SNPs and 72% of the existing INDELs. These percentages considerably improve the 71% of SNPs and 51% of INDELs found by the state-of-the art tool based on de Bruijn graphs. We furthermore report results on larger (real) Human whole-genome sequencing experiments. Also in these cases, our tool exhibits a **** higher sensitivity than the state-of-the art tool.
from two simulated metagenomes among those provided in benchmarking analysis and on a real metagenome from the Human Microbiome Project. https://www.selleckchem.com/products/1-phenyl-2-thiourea.html The experiment results on the simulated data show that LiME is competitive with the widely used taxonomic classifiers. It achieves high levels of precision and specificity - e.g. 99.9% of the positive control reads are correctly assigned and the percentage of classified reads of the negative control is less than 0.01% - while keeping a high sensitivity. On the real metagenome, we show that LiME is able to deliver classification results comparable to that of MagicBlast. Overall, the experiments confirm the effectiveness of our method and its high accuracy even in negative control samples. Protein phosphorylation networks play an important role in cell signaling. In these networks, phosphorylation of a protein kinase usually leads to its activation, which in turn will phosphorylate its downstream target proteins. A phosphorylation network is essentially a causal network, which can be learned by causal inference algorithms. Prior efforts have applied such algorithms to data measuring protein phosphorylation levels, assuming that the phosphorylation levels represent protein activity states. However, the phosphorylation status of a kinase does not always reflect its activity state, because interventions such as inhibitors or mutations can directly affect its activity state without changing its phosphorylation status. Thus, when cellular systems are subjected to extensive perturbations, the statistical relationships between phosphorylation states of proteins may be disrupted, making it difficult to reconstruct the true protein phosphorylation network. Here, we describe a novel framework to addresof the protein activity states by our novel framework significantly enhances causal discovery of protein phosphorylation networks. Explicit representation of the protein activity states by our novel framework significantly enhances causal discovery of protein phosphorylation networks. Positron Emission Tomography (PET) is increasingly utilized in radiomics studies for treatment evaluation purposes. Nevertheless, lesion volume identification in PET images is a critical and still challenging step in the process of radiomics, due to the low spatial resolution and high noise level of PET images. Currently, the biological target volume (BTV) is manually contoured by nuclear physicians, with a time expensive and operator-dependent procedure. This study aims to obtain BTVs from cerebral metastases in patients who underwent L-[ C]methionine (11C-MET) PET, using a fully automatic procedure and to use these BTVs to extract radiomics features to stratify between patients who respond to treatment or not. For these purposes, 31 brain metastases, for predictive evaluation, and 25 ones, for follow-up evaluation after treatment, were delineated using the proposed method. Successively, 11C-MET PET studies and related volumetric segmentations were used to extract 108 features to investigate the potentialoposed system is able i) to extract 108 features for each automatically segmented lesion and ii) to select a sub-panel of 11C-MET PET features (3 and 8 in the case of predictive and follow-up evaluation), with valuable association with patient outcome. We believe that our model can be useful to improve treatment response and prognosis evaluation, potentially allowing the personalization of cancer treatment plans. The proposed system is able i) to extract 108 features for each automatically segmented lesion and ii) to select a sub-panel of 11C-MET PET features (3 and 8 in the case of predictive and follow-up evaluation), with valuable association with patient outcome. We believe that our model can be useful to improve treatment response and prognosis evaluation, potentially allowing the personalization of cancer treatment plans. A Virtual Screening algorithm has to adapt to the different stages of this process. Early screening needs to ensure that all bioactive compounds are ranked in the first positions despite of the number of false positives, while a second screening round is aimed at increasing the prediction accuracy. A novel CNN architecture is presented to this aim, which predicts bioactivity of candidate compounds on CDK1 using a combination of molecular fingerprints as their vector representation, and has been trained suitably to achieve good results as regards both enrichment factor and accuracy in different screening modes (98.55% accuracy in active-only selection, and 98.88% in high precision discrimination). The proposed architecture outperforms state-of-the-art ML approaches, and some interesting insights on molecular fingerprints are devised. The proposed architecture outperforms state-of-the-art ML approaches, and some interesting insights on molecular fingerprints are devised. In [Prezza et al., AMB 2019], a new reference-free and alignment-free framework for the detection of SNPs was suggested and tested. The framework, based on the Burrows-Wheeler Transform (BWT), significantly improves sensitivity and precision of previous de Bruijn graphs based tools by overcoming several of their limitations, namely (i) the need to establish a fixed value, usually small, for the order k, (ii) the loss of important information such as k-mer coverage and adjacency of k-mers within the same read, and (iii) bad performance in repeated regions longer than k bases. The preliminary tool, however, was able to identify only SNPs and it was too slow and memory consuming due to the use of additional heavy data structures (namely, the Suffix and LCP arrays), besides the BWT. In this paper, we introduce a new algorithm and the corresponding tool ebwt2InDel that (i) extend the framework of [Prezza et al., AMB 2019] to detect also INDELs, and (ii) implements recent algorithmic findings that allow to perffind up to 83% of the SNPs and 72% of the existing INDELs. These percentages considerably improve the 71% of SNPs and 51% of INDELs found by the state-of-the art tool based on de Bruijn graphs. We furthermore report results on larger (real) Human whole-genome sequencing experiments. Also in these cases, our tool exhibits a much higher sensitivity than the state-of-the art tool.0 Kommentare 0 Geteilt 22 Ansichten 0 Bewertungen -
nts and patients with longer duration of symptoms reported a significantly lower level of sports activity (HSAS, 0-4; P less then .009). CONCLUSION Arthroscopic treatment for FAIS in elite athletes results in a statistically significant and clinically relevant improvement regarding symptoms, hip function, quality of life, and pain 5 years after surgery. Approximately half of the cohort was still in competitive sports at follow-up, yet 77% had decreased their level of sports. Nine of 10 patients were satisfied with their surgery.BACKGROUND European Action on Secondary and Primary Prevention by Intervention to Reduce Events (EUROASPIRE) V in primary care was carried out by the European Society of Cardiology EURObservational Research Programme in 2016-2018. https://www.selleckchem.com/Androgen-Receptor.html The main objective was to determine whether the 2016 Joint European Societies' guidelines on cardiovascular disease prevention in people at high cardiovascular risk have been implemented in clinical practice. METHODS The method used was a cross-sectional survey in 78 centres from 16 European countries. Patients without a history of atherosclerotic cardiovascular disease either started on blood pressure and/or lipid and/or glucose lowering treatments were identified and interviewed ≥ 6 months after the start of medication. RESULTS A total of 3562 medical records were reviewed and 2759 patients (57.6% women; mean age 59.0 ± 11.6 years) interviewed (interview rate 70.0%). The risk factor control was poor with 18.1% of patients being smokers, 43.5% obese (body mass index ≥30 kg/m2) and 63.8% centrally obese (waist circumference ≥88 cm for women, ≥102 cm for men). Of patients on blood pressure lowering medication 47.0% reached the target of less then 140/90 mm Hg ( less then 140/85 mm Hg in people with diabetes). Among treated dyslipidaemic patients only 46.9% attained low density lipoprotein-cholesterol target of less then 2.6 mmol/l. Among people treated for type 2 diabetes mellitus, 65.2% achieved the HbA1c target of less then 7.0%. CONCLUSION The primary care arm of the EUROASPIRE V survey revealed that large proportions of people at high cardiovascular disease risk have unhealthy lifestyles and inadequate control of blood pressure, lipids and diabetes. Thus, the potential to reduce the risk of future cardiovascular disease throughout Europe by improved preventive cardiology programmes is substantial.The benefits of physical activity are known, but the proportion of adolescents meeting daily activity guidelines remains low. The Theory of Planned Behaviour (TPB), which assumes reasoned intentions explain actions, is a useful framework for predicting activity, but it leaves variance unexplained. The Prototype Willingness Model (PWM) which builds on the TPB, proposes a reasoned action pathway and a second social reactive pathway in which perceptions of social images, or prototypes, explain actions via behavioural willingness. We explored whether variables in the PWM's social reactive pathway explained variance in an objective measure of daily activity, over and above the reasoned action path. Participants aged 12-13 (n = 205) were invited to complete measures of constructs in the PWM and to wear an accelerometer for the next seven days. Overall, 126 students (65 males) participated. Reasoned intentions, attitudes and subjective norms explained 12.8% of variance in activity. Prototype perceptions and willingness explained an additional 13.1% of variance. Participants' perceived similarity to active prototypes, and unfavourable perceptions of inactive prototypes, significantly predicted activity. There were no significant differences between sexes on psychological variables. These findings highlight the importance of targeting prototype perceptions to encourage physical activity in this age group.OBJECTIVE To investigate whether auricular acupuncture (AA) attenuates bodyweight and obese inflammation through the release of irisin from muscle tissue in ****. METHODS Sixty 4-week-old **** were fed a high fat diet (HFD) for 4 weeks. These animals were divided into six groups that remained untreated (HFD) or underwent electrical AA (HFD+EAA), sham EAA (HFD+SEAA), adrenalectomy (HFD+AD), adrenalectomy and EAA (HFD+AD+EAA), or adrenalectomy and injection of recombinant lentivirus expressing fibronectin type III domain-containing protein 5 (rFNDC) (HFD+AD+rFNDC) in the ninth week. The EAA and SEAA were performed at two traditional auricular acupuncture points daily for 4 weeks. An additional 10 **** fed a control diet were included as a normal control (NC) group. At the end of the study, norepinephrine (NE) in the serum, tumour necrosis factor α (TNFα) and interleukin 1β (IL-1β) in the serum and white adipose tissue, irisin in the serum and muscle, uncoupling protein-1 (UCP-1) in the brown adipose tissue (BAT), and FNDC5 in the muscle, were analysed. RESULTS The AD+EAA group exhibited better control of bodyweight and inflammation compared with the AD+SEAA and untreated HFD model groups (P less then 0.05), especially regarding the increased expression of NE, FNDC5, irisin and UCP-1 (P less then 0.05). After adrenalectomy, **** receiving EAA had less NE, FNDC5, irisin and UCP-1 as well as greater expression of inflammatory cytokines and bodyweight. However, lentiviral overexpression of rFNDC successfully reversed this situation in the AD **** and mimicked the effects of EAA on bodyweight, inflammation and expression of FNDC5, irisin and UCP-1, although it did not impact NE. CONCLUSIONS EAA promoted NE release from the adrenal gland leading to further expression of FNDC5, irisin and UCP-1, which contributed to weight management and inflammatory inhibition.BACKGROUND There is no consensus on technique of choice for repair of bucket-handle meniscal tears (BHMTs). PURPOSE To determine factors that affect patient outcomes and failure rates in patients undergoing all-inside repairs of BHMTs. STUDY DESIGN Systematic review. METHODS A systematic review of 3 databases using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines was performed. All English-language literature from 1993 to 2019 describing clinical outcomes for patients undergoing all-inside BHMT repair with ≥12-month follow-up was reviewed by 2 independent reviewers. Patient characteristics (patient sex, age), intraoperative factors (laterality, concomitant procedures, surgical technique, implants utilized), and postoperative outcomes (failure rates) were analyzed. Study quality was evaluated with the Modified Coleman Methodology Score (MCMS). RESULTS Fifteen studies (1 level 1, 4 level 3, 10 level 4) with 763 total patients (64% male; average age, 26.4 years [range, 9-58 years]; average follow-up, 39.
nts and patients with longer duration of symptoms reported a significantly lower level of sports activity (HSAS, 0-4; P less then .009). CONCLUSION Arthroscopic treatment for FAIS in elite athletes results in a statistically significant and clinically relevant improvement regarding symptoms, hip function, quality of life, and pain 5 years after surgery. Approximately half of the cohort was still in competitive sports at follow-up, yet 77% had decreased their level of sports. Nine of 10 patients were satisfied with their surgery.BACKGROUND European Action on Secondary and Primary Prevention by Intervention to Reduce Events (EUROASPIRE) V in primary care was carried out by the European Society of Cardiology EURObservational Research Programme in 2016-2018. https://www.selleckchem.com/Androgen-Receptor.html The main objective was to determine whether the 2016 Joint European Societies' guidelines on cardiovascular disease prevention in people at high cardiovascular risk have been implemented in clinical practice. METHODS The method used was a cross-sectional survey in 78 centres from 16 European countries. Patients without a history of atherosclerotic cardiovascular disease either started on blood pressure and/or lipid and/or glucose lowering treatments were identified and interviewed ≥ 6 months after the start of medication. RESULTS A total of 3562 medical records were reviewed and 2759 patients (57.6% women; mean age 59.0 ± 11.6 years) interviewed (interview rate 70.0%). The risk factor control was poor with 18.1% of patients being smokers, 43.5% obese (body mass index ≥30 kg/m2) and 63.8% centrally obese (waist circumference ≥88 cm for women, ≥102 cm for men). Of patients on blood pressure lowering medication 47.0% reached the target of less then 140/90 mm Hg ( less then 140/85 mm Hg in people with diabetes). Among treated dyslipidaemic patients only 46.9% attained low density lipoprotein-cholesterol target of less then 2.6 mmol/l. Among people treated for type 2 diabetes mellitus, 65.2% achieved the HbA1c target of less then 7.0%. CONCLUSION The primary care arm of the EUROASPIRE V survey revealed that large proportions of people at high cardiovascular disease risk have unhealthy lifestyles and inadequate control of blood pressure, lipids and diabetes. Thus, the potential to reduce the risk of future cardiovascular disease throughout Europe by improved preventive cardiology programmes is substantial.The benefits of physical activity are known, but the proportion of adolescents meeting daily activity guidelines remains low. The Theory of Planned Behaviour (TPB), which assumes reasoned intentions explain actions, is a useful framework for predicting activity, but it leaves variance unexplained. The Prototype Willingness Model (PWM) which builds on the TPB, proposes a reasoned action pathway and a second social reactive pathway in which perceptions of social images, or prototypes, explain actions via behavioural willingness. We explored whether variables in the PWM's social reactive pathway explained variance in an objective measure of daily activity, over and above the reasoned action path. Participants aged 12-13 (n = 205) were invited to complete measures of constructs in the PWM and to wear an accelerometer for the next seven days. Overall, 126 students (65 males) participated. Reasoned intentions, attitudes and subjective norms explained 12.8% of variance in activity. Prototype perceptions and willingness explained an additional 13.1% of variance. Participants' perceived similarity to active prototypes, and unfavourable perceptions of inactive prototypes, significantly predicted activity. There were no significant differences between sexes on psychological variables. These findings highlight the importance of targeting prototype perceptions to encourage physical activity in this age group.OBJECTIVE To investigate whether auricular acupuncture (AA) attenuates bodyweight and obese inflammation through the release of irisin from muscle tissue in mice. METHODS Sixty 4-week-old mice were fed a high fat diet (HFD) for 4 weeks. These animals were divided into six groups that remained untreated (HFD) or underwent electrical AA (HFD+EAA), sham EAA (HFD+SEAA), adrenalectomy (HFD+AD), adrenalectomy and EAA (HFD+AD+EAA), or adrenalectomy and injection of recombinant lentivirus expressing fibronectin type III domain-containing protein 5 (rFNDC) (HFD+AD+rFNDC) in the ninth week. The EAA and SEAA were performed at two traditional auricular acupuncture points daily for 4 weeks. An additional 10 mice fed a control diet were included as a normal control (NC) group. At the end of the study, norepinephrine (NE) in the serum, tumour necrosis factor α (TNFα) and interleukin 1β (IL-1β) in the serum and white adipose tissue, irisin in the serum and muscle, uncoupling protein-1 (UCP-1) in the brown adipose tissue (BAT), and FNDC5 in the muscle, were analysed. RESULTS The AD+EAA group exhibited better control of bodyweight and inflammation compared with the AD+SEAA and untreated HFD model groups (P less then 0.05), especially regarding the increased expression of NE, FNDC5, irisin and UCP-1 (P less then 0.05). After adrenalectomy, mice receiving EAA had less NE, FNDC5, irisin and UCP-1 as well as greater expression of inflammatory cytokines and bodyweight. However, lentiviral overexpression of rFNDC successfully reversed this situation in the AD mice and mimicked the effects of EAA on bodyweight, inflammation and expression of FNDC5, irisin and UCP-1, although it did not impact NE. CONCLUSIONS EAA promoted NE release from the adrenal gland leading to further expression of FNDC5, irisin and UCP-1, which contributed to weight management and inflammatory inhibition.BACKGROUND There is no consensus on technique of choice for repair of bucket-handle meniscal tears (BHMTs). PURPOSE To determine factors that affect patient outcomes and failure rates in patients undergoing all-inside repairs of BHMTs. STUDY DESIGN Systematic review. METHODS A systematic review of 3 databases using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines was performed. All English-language literature from 1993 to 2019 describing clinical outcomes for patients undergoing all-inside BHMT repair with ≥12-month follow-up was reviewed by 2 independent reviewers. Patient characteristics (patient sex, age), intraoperative factors (laterality, concomitant procedures, surgical technique, implants utilized), and postoperative outcomes (failure rates) were analyzed. Study quality was evaluated with the Modified Coleman Methodology Score (MCMS). RESULTS Fifteen studies (1 level 1, 4 level 3, 10 level 4) with 763 total patients (64% male; average age, 26.4 years [range, 9-58 years]; average follow-up, 39.0 Kommentare 0 Geteilt 26 Ansichten 0 Bewertungen -
The process achieved UV light dosing for sanitation while maintaining the functional and structural integrity of the N95 respirators, with a daily potential throughput capacity of ˜12,000 masks. This process has supported our health system to provide respiratory PPE to all frontline team members.
This novel method of N95 respirator sanitation can safely enable re-use of the N95 respirator essential for healthcare workers caring for patients with COVID-19. Our high-throughput process can extend local supplies of this critical PPE until the national supply is replenished.
This novel method of N95 respirator sanitation can safely enable re-use of the N95 respirator essential for healthcare workers caring for patients with COVID-19. Our high-throughput process can extend local supplies of this critical PPE until the national supply is replenished.Optimal maternal long-chain PUFA (LCPUFA) status is essential for the developing fetus. The fatty acid desaturase (FADS) genes are involved in the endogenous synthesis of LCPUFA. The minor allele of various FADS SNP have been associated with increased maternal concentrations of the precursors linoleic acid (LA) and α-linolenic acid (ALA), and lower concentrations of arachidonic acid (AA) and DHA. There is limited research on the influence of FADS genotype on cord PUFA status. The current study investigated the influence of maternal and child genetic variation in FADS genotype on cord blood PUFA status in a high fish-eating cohort. Cord blood samples (n 1088) collected from the Seychelles Child Development Study (SCDS) Nutrition Cohort 2 (NC2) were analysed for total serum PUFA. Of those with cord PUFA data available, maternal (n 1062) and child (n 916), FADS1 (rs174537 and rs174561), FADS2 (rs174575), and FADS1-FADS2 (rs3834458) were determined. Regression analysis determined that maternal minor allele homozygosity was associated with lower cord blood concentrations of DHA and the sum of EPA + DHA. Lower cord blood AA concentrations were observed in children who were minor allele homozygous for rs3834458 (β = 0·075; P = 0·037). Children who were minor allele carriers for rs174537, rs174561, rs174575 and rs3834458 had a lower cord blood AALA ratio (P less then 0·05 for all). Both maternal and child FADS genotype were associated with cord LCPUFA concentrations, and therefore, the influence of FADS genotype was observed despite the high intake of preformed dietary LCPUFA from fish in this population.
The aim of this study is to test the psychometric properties of the Spanish validation of the Fear of COVID-19 Scale (FCV-19S) in a Paraguayan population.
Participants were recruited through an Internet-based survey. All participants whose scores in the Hospital Anxiety and Depression Scale (HADS) and The Fear Questionnaire (FQ) were greater than zero were included. 1245 subjects responded voluntarily 1077 subjects, scoring >0, were considered.
To establish construct validity of the FCV-19S, an exploratory factor analysis was performed using the KMO test, which was adequate, and the Bartlett sphericity test, which was significant (p <.0001). The CFI, NFI, GFI, TLI and RMSEA indices were used to evaluate the model and showed good adjustment. Cronbach's α showed valid internal consistency (α = 0.86). This validation was supported by significant correlation (p <.001) with the HADS scale for anxiety and depression and with the FQ scale for specific phobia.
The Spanish version of the FCV-19S is a 7-item scale with two dimensions, psychological symptoms and physiological symptoms, which demonstrated robust psychometric properties in a Paraguayan population.
The Spanish version of the FCV-19S is a 7-item scale with two dimensions, psychological symptoms and physiological symptoms, which demonstrated robust psychometric properties in a Paraguayan population.The present study was undertaken to evaluate the influence of rumen-protected folic acid (RPFA) on slaughter performance, visceral organ and gastrointestinal tract coefficients, and meat quality in lambs. Sixty-six lambs from 120 Hu ewes were selected based on body weight and maternal diets and then assigned to six groups using a randomised block experimental design in a 3 × 2 factorial arrangement. The first factor was folic acid (FA) as RPFA in the maternal diet (0 mg/kg (M0F), 16 mg/kg (M16F) or 32 mg/kg (M32F) on DM basis). The second factor was FA in the lambs' diet from weaning until slaughter (0 mg/kg (OC) or 4·0 mg/kg (OF)). The results indicated that the addition of 16 mg/kg FA to the maternal diet increased pre-slaughter weight (PSW), dressing and meat percentage, the reticulum and omasum coefficients, length of the jejunum and ileum, tail fat and perirenal fat coefficient and a* value of the meat colour. The addition of RPFA to the lambs' diet increased PSW, dressing and meat percentage, eye muscle area, abomasum weight, weight and length of the small intestine, but reduced the coefficients of tail fat. An M × O interaction was observed for the weights of heart, lungs, rumen and total stomach, weight and coefficient of omental fat and the girth rib value. Collectively, RPFA in the maternal and lambs' diet improved slaughter performance and meat quality by stimulating the morphological development of the gastrointestinal tract and the distribution of fat in the body.With the onset of the demographic transition in sub-Saharan Africa, couples' desired number of children and the sex composition of offspring may become conflicted, with potential effects on future fertility. While intuitively expected, this effect has not been observed in studies in sub-Saharan Africa, where the level of fertility is higher than in other African regions. In this study, the hypothesis of a conflicted situation was examined by assessing the effect of sex composition of offspring on women's intentions regarding additional children and their use of modern contraceptives. A mixed-method analysis was performed using quantitative data regarding 2567 women aged 35-49 years drawn from a 2012 Demtrend retrospective longitudinal population survey, supplemented by qualitative data collected through 23 in-depth interviews of men and women in Ouagadougou. https://www.selleckchem.com/btk.html Results showed that the absence of one sex (boy or girl) in the existing offspring was associated with additional demand for children and lower contraceptive use.
The process achieved UV light dosing for sanitation while maintaining the functional and structural integrity of the N95 respirators, with a daily potential throughput capacity of ˜12,000 masks. This process has supported our health system to provide respiratory PPE to all frontline team members. This novel method of N95 respirator sanitation can safely enable re-use of the N95 respirator essential for healthcare workers caring for patients with COVID-19. Our high-throughput process can extend local supplies of this critical PPE until the national supply is replenished. This novel method of N95 respirator sanitation can safely enable re-use of the N95 respirator essential for healthcare workers caring for patients with COVID-19. Our high-throughput process can extend local supplies of this critical PPE until the national supply is replenished.Optimal maternal long-chain PUFA (LCPUFA) status is essential for the developing fetus. The fatty acid desaturase (FADS) genes are involved in the endogenous synthesis of LCPUFA. The minor allele of various FADS SNP have been associated with increased maternal concentrations of the precursors linoleic acid (LA) and α-linolenic acid (ALA), and lower concentrations of arachidonic acid (AA) and DHA. There is limited research on the influence of FADS genotype on cord PUFA status. The current study investigated the influence of maternal and child genetic variation in FADS genotype on cord blood PUFA status in a high fish-eating cohort. Cord blood samples (n 1088) collected from the Seychelles Child Development Study (SCDS) Nutrition Cohort 2 (NC2) were analysed for total serum PUFA. Of those with cord PUFA data available, maternal (n 1062) and child (n 916), FADS1 (rs174537 and rs174561), FADS2 (rs174575), and FADS1-FADS2 (rs3834458) were determined. Regression analysis determined that maternal minor allele homozygosity was associated with lower cord blood concentrations of DHA and the sum of EPA + DHA. Lower cord blood AA concentrations were observed in children who were minor allele homozygous for rs3834458 (β = 0·075; P = 0·037). Children who were minor allele carriers for rs174537, rs174561, rs174575 and rs3834458 had a lower cord blood AALA ratio (P less then 0·05 for all). Both maternal and child FADS genotype were associated with cord LCPUFA concentrations, and therefore, the influence of FADS genotype was observed despite the high intake of preformed dietary LCPUFA from fish in this population. The aim of this study is to test the psychometric properties of the Spanish validation of the Fear of COVID-19 Scale (FCV-19S) in a Paraguayan population. Participants were recruited through an Internet-based survey. All participants whose scores in the Hospital Anxiety and Depression Scale (HADS) and The Fear Questionnaire (FQ) were greater than zero were included. 1245 subjects responded voluntarily 1077 subjects, scoring >0, were considered. To establish construct validity of the FCV-19S, an exploratory factor analysis was performed using the KMO test, which was adequate, and the Bartlett sphericity test, which was significant (p <.0001). The CFI, NFI, GFI, TLI and RMSEA indices were used to evaluate the model and showed good adjustment. Cronbach's α showed valid internal consistency (α = 0.86). This validation was supported by significant correlation (p <.001) with the HADS scale for anxiety and depression and with the FQ scale for specific phobia. The Spanish version of the FCV-19S is a 7-item scale with two dimensions, psychological symptoms and physiological symptoms, which demonstrated robust psychometric properties in a Paraguayan population. The Spanish version of the FCV-19S is a 7-item scale with two dimensions, psychological symptoms and physiological symptoms, which demonstrated robust psychometric properties in a Paraguayan population.The present study was undertaken to evaluate the influence of rumen-protected folic acid (RPFA) on slaughter performance, visceral organ and gastrointestinal tract coefficients, and meat quality in lambs. Sixty-six lambs from 120 Hu ewes were selected based on body weight and maternal diets and then assigned to six groups using a randomised block experimental design in a 3 × 2 factorial arrangement. The first factor was folic acid (FA) as RPFA in the maternal diet (0 mg/kg (M0F), 16 mg/kg (M16F) or 32 mg/kg (M32F) on DM basis). The second factor was FA in the lambs' diet from weaning until slaughter (0 mg/kg (OC) or 4·0 mg/kg (OF)). The results indicated that the addition of 16 mg/kg FA to the maternal diet increased pre-slaughter weight (PSW), dressing and meat percentage, the reticulum and omasum coefficients, length of the jejunum and ileum, tail fat and perirenal fat coefficient and a* value of the meat colour. The addition of RPFA to the lambs' diet increased PSW, dressing and meat percentage, eye muscle area, abomasum weight, weight and length of the small intestine, but reduced the coefficients of tail fat. An M × O interaction was observed for the weights of heart, lungs, rumen and total stomach, weight and coefficient of omental fat and the girth rib value. Collectively, RPFA in the maternal and lambs' diet improved slaughter performance and meat quality by stimulating the morphological development of the gastrointestinal tract and the distribution of fat in the body.With the onset of the demographic transition in sub-Saharan Africa, couples' desired number of children and the sex composition of offspring may become conflicted, with potential effects on future fertility. While intuitively expected, this effect has not been observed in studies in sub-Saharan Africa, where the level of fertility is higher than in other African regions. In this study, the hypothesis of a conflicted situation was examined by assessing the effect of sex composition of offspring on women's intentions regarding additional children and their use of modern contraceptives. A mixed-method analysis was performed using quantitative data regarding 2567 women aged 35-49 years drawn from a 2012 Demtrend retrospective longitudinal population survey, supplemented by qualitative data collected through 23 in-depth interviews of men and women in Ouagadougou. https://www.selleckchem.com/btk.html Results showed that the absence of one sex (boy or girl) in the existing offspring was associated with additional demand for children and lower contraceptive use.0 Kommentare 0 Geteilt 26 Ansichten 0 Bewertungen -
There is an increasing demand for low-cost and more efficient titanium (Ti) medical implants that will provide improved osseointegration and at the same time reduce the likelihood of infection. In the past decade, additive manufacturing (AM) using metal selective laser melting (SLM) or three-dimensional (3D) printing techniques has emerged to enable novel implant geometries or properties to overcome such potential challenges. This study presents a new surface engineering approach to create bioinspired multistructured surfaces on SLM-printed Ti alloy (Ti6Al4V) implants by combining SLM technology, electrochemical anodization, and hydrothermal (HT) processes. The resulting implants display unique surfaces with a distinctive dual micro- to nano-topography composed of micron-sized spherical features, fabricated by SLM and vertically aligned nanoscale pillar structures as a result of combining anodization and HT treatment. The fabricated implants enhanced hydroxyapatite-like mineral deposition from simulated body fluid (SBF) compared to control. In addition, normal human osteoblast-like cells (NHBCs) showed strong adhesion to the nano-/microstructures and displayed greater propensity to mineralize compared to control surfaces. This engineering approach and the resulting nature-inspired multiscale-structured surface offers desired features for improving osseointegration and antibacterial performance toward the development of next-generation orthopedic and dental implants.Since the first connection between Fenton chemistry and biomedicine, numerous studies have been presented in this field. Comprehensive presentation of the guidance from Fenton chemistry and a summary of its representative applications in cancer therapy would help us understand and promote the further development of this field. This comprehensive review first supplies basic information regarding Fenton chemistry, including Fenton reactions and Fenton-like reactions. Subsequently, the current progress of Fenton chemistry is discussed, with some corresponding representative examples presented. Furthermore, the current strategies for further optimizing the performance of chemodynamic therapy guided by Fenton chemistry are highlighted. Most importantly, future perspectives on the combination of biomedicine with Fenton chemistry or a wider range of catalytic chemistry approaches are presented. We hope that this review will attract positive attention in the chemistry, materials science, and biomedicine fields and further tighten their connections.Aryl diazonium ions have long been used in bioconjugation due to their reactivity toward electron-rich aryl residues, such as tyrosine. However, their utility in biological systems has been restricted due to the requirement of harsh conditions for their generation in situ, as well as limited hydrolytic stability. Previous work describing a scaffold known as triazabutadiene (TBD) has shown the ability to protect aryl diazonium ions allowing for increased synthetic utility, as well as triggered release under biologically relevant conditions. Herein, we describe the synthesis and application of a novel TBD, capable of installation of a cyclooctyne on protein surfaces for later use of copper-free click reactions involving functional azides. The probe shows efficient protein labeling across a wide pH range that can be accomplished in a convenient and timely manner. Orthogonality of the cyclooctyne modification was showcased by labeling a model protein in the presence of hen egg proteins, using an azide-containing fluorophore. We further confirmed that the azobenzene modification can be cleaved using sodium dithionite treatment.Whereas prospects of bioremediation for a vanadium(V) [V(V)]-contaminated environment are widely recognized, reported functional species are extremely limited, with the vast majority of Gram-negative bacteria in Proteobacteria. Herein, the effectiveness of V(V) reduction is proved for the first time by Lactococcus raffinolactis, a Gram-positive bacterium in Firmicutes. The V(V) removal efficiency was 86.5 ± 2.17% during 10-d operation, with an average removal rate of 4.32 ± 0.28 mg/L·d in a citrate-fed system correspondingly. V(V) was bio-reduced to insoluble vanadium(IV) and distributed both inside and outside the cells. Nitrite reductase encoded by gene nirS mainly catalyzed intracellular V(V) reduction, revealing a previously unrecognized pathway. Oxidative stress induced by reactive oxygen species from dissimilatory V(V) reduction was alleviated through strengthened superoxide dismutase and catalase activities. Extracellular polymeric substances with chemically reactive hydroxyl (-OH) and carboxyl (-COO-) groups also contributed to V(V) binding and reduction as well as ROS scavenging. This study can improve the understanding of Gram-positive bacteria for V(V) bio-detoxification and offer microbial resources for bioremediation of a V(V)-polluted environment.Helminths represent a diverse category of parasitic organisms that can thrive within a host for years, if not decades, in the absence of treatment. As such, they must establish mechanisms to subsist off their hosts, evade the immune system, and develop a niche among the other cohabiting microbial communities. The complex interplay of biologically small molecules (collectively known as the metabolome) derived from, utilized by, or in response to the presence of helminths within a host is an emerging field of study. https://www.selleckchem.com/ In this Perspective, we briefly summarize the current existing literature, categorize key host-pathogen-microbiome interfaces that could be studied in the context of the metabolome, and provide background on mass spectrometry-based metabolomic methodology. Overall, we hope to provide a comprehensive guide for utilizing metabolomics in the context of helminthic disease.A family of multinuclear rare-earth (RE)-implanted H2tart2--functionalized selenotungstates (STs) [H2N(CH3)2]13H[W2O5(OH)2(H2tart)2](H2tart)[W3O6RE2(H2O)6][SeW9O33]22·31H2O [RE = Eu3+ (1), Tb3+ (2), Dy3+ (3), Ho3+ (4), Y3+ (5); H4tart = d-tartaric acid] have been afforded by a simple one-pot aqueous reaction and were structurally characterized. Intriguingly, their isomorphous organic-inorganic hybrid anion [W2O5(OH)2(H2tart)2](H2tart)[W3O6RE2(H2O)6][SeW9O33]2214- includes two sandwich-type [W3O6[RE2(H2O)6][SeW9O33]24- dimeric units with a W-O-RE heterometal core, which are further joined by two H2tart2--decorated dinuclear tungsten-oxo W2O5(OH)2(H2tart)2 clusters and a bridging H2tart2- ligand, contributing to a surprising Mobius band-like configuration. It is worth emphasizing that three H2tart2- ligands coordinate with tungsten centers rather than RE cations. For all we know, 1-5 delegate the infrequent RE-implanted STs functionalized by triplicate H2tart2- bridges. Furthermore, fluorescent performances of 1-4 as well as magnetic properties of 2-4 have been surveyed.
There is an increasing demand for low-cost and more efficient titanium (Ti) medical implants that will provide improved osseointegration and at the same time reduce the likelihood of infection. In the past decade, additive manufacturing (AM) using metal selective laser melting (SLM) or three-dimensional (3D) printing techniques has emerged to enable novel implant geometries or properties to overcome such potential challenges. This study presents a new surface engineering approach to create bioinspired multistructured surfaces on SLM-printed Ti alloy (Ti6Al4V) implants by combining SLM technology, electrochemical anodization, and hydrothermal (HT) processes. The resulting implants display unique surfaces with a distinctive dual micro- to nano-topography composed of micron-sized spherical features, fabricated by SLM and vertically aligned nanoscale pillar structures as a result of combining anodization and HT treatment. The fabricated implants enhanced hydroxyapatite-like mineral deposition from simulated body fluid (SBF) compared to control. In addition, normal human osteoblast-like cells (NHBCs) showed strong adhesion to the nano-/microstructures and displayed greater propensity to mineralize compared to control surfaces. This engineering approach and the resulting nature-inspired multiscale-structured surface offers desired features for improving osseointegration and antibacterial performance toward the development of next-generation orthopedic and dental implants.Since the first connection between Fenton chemistry and biomedicine, numerous studies have been presented in this field. Comprehensive presentation of the guidance from Fenton chemistry and a summary of its representative applications in cancer therapy would help us understand and promote the further development of this field. This comprehensive review first supplies basic information regarding Fenton chemistry, including Fenton reactions and Fenton-like reactions. Subsequently, the current progress of Fenton chemistry is discussed, with some corresponding representative examples presented. Furthermore, the current strategies for further optimizing the performance of chemodynamic therapy guided by Fenton chemistry are highlighted. Most importantly, future perspectives on the combination of biomedicine with Fenton chemistry or a wider range of catalytic chemistry approaches are presented. We hope that this review will attract positive attention in the chemistry, materials science, and biomedicine fields and further tighten their connections.Aryl diazonium ions have long been used in bioconjugation due to their reactivity toward electron-rich aryl residues, such as tyrosine. However, their utility in biological systems has been restricted due to the requirement of harsh conditions for their generation in situ, as well as limited hydrolytic stability. Previous work describing a scaffold known as triazabutadiene (TBD) has shown the ability to protect aryl diazonium ions allowing for increased synthetic utility, as well as triggered release under biologically relevant conditions. Herein, we describe the synthesis and application of a novel TBD, capable of installation of a cyclooctyne on protein surfaces for later use of copper-free click reactions involving functional azides. The probe shows efficient protein labeling across a wide pH range that can be accomplished in a convenient and timely manner. Orthogonality of the cyclooctyne modification was showcased by labeling a model protein in the presence of hen egg proteins, using an azide-containing fluorophore. We further confirmed that the azobenzene modification can be cleaved using sodium dithionite treatment.Whereas prospects of bioremediation for a vanadium(V) [V(V)]-contaminated environment are widely recognized, reported functional species are extremely limited, with the vast majority of Gram-negative bacteria in Proteobacteria. Herein, the effectiveness of V(V) reduction is proved for the first time by Lactococcus raffinolactis, a Gram-positive bacterium in Firmicutes. The V(V) removal efficiency was 86.5 ± 2.17% during 10-d operation, with an average removal rate of 4.32 ± 0.28 mg/L·d in a citrate-fed system correspondingly. V(V) was bio-reduced to insoluble vanadium(IV) and distributed both inside and outside the cells. Nitrite reductase encoded by gene nirS mainly catalyzed intracellular V(V) reduction, revealing a previously unrecognized pathway. Oxidative stress induced by reactive oxygen species from dissimilatory V(V) reduction was alleviated through strengthened superoxide dismutase and catalase activities. Extracellular polymeric substances with chemically reactive hydroxyl (-OH) and carboxyl (-COO-) groups also contributed to V(V) binding and reduction as well as ROS scavenging. This study can improve the understanding of Gram-positive bacteria for V(V) bio-detoxification and offer microbial resources for bioremediation of a V(V)-polluted environment.Helminths represent a diverse category of parasitic organisms that can thrive within a host for years, if not decades, in the absence of treatment. As such, they must establish mechanisms to subsist off their hosts, evade the immune system, and develop a niche among the other cohabiting microbial communities. The complex interplay of biologically small molecules (collectively known as the metabolome) derived from, utilized by, or in response to the presence of helminths within a host is an emerging field of study. https://www.selleckchem.com/ In this Perspective, we briefly summarize the current existing literature, categorize key host-pathogen-microbiome interfaces that could be studied in the context of the metabolome, and provide background on mass spectrometry-based metabolomic methodology. Overall, we hope to provide a comprehensive guide for utilizing metabolomics in the context of helminthic disease.A family of multinuclear rare-earth (RE)-implanted H2tart2--functionalized selenotungstates (STs) [H2N(CH3)2]13H[W2O5(OH)2(H2tart)2](H2tart)[W3O6RE2(H2O)6][SeW9O33]22·31H2O [RE = Eu3+ (1), Tb3+ (2), Dy3+ (3), Ho3+ (4), Y3+ (5); H4tart = d-tartaric acid] have been afforded by a simple one-pot aqueous reaction and were structurally characterized. Intriguingly, their isomorphous organic-inorganic hybrid anion [W2O5(OH)2(H2tart)2](H2tart)[W3O6RE2(H2O)6][SeW9O33]2214- includes two sandwich-type [W3O6[RE2(H2O)6][SeW9O33]24- dimeric units with a W-O-RE heterometal core, which are further joined by two H2tart2--decorated dinuclear tungsten-oxo W2O5(OH)2(H2tart)2 clusters and a bridging H2tart2- ligand, contributing to a surprising Mobius band-like configuration. It is worth emphasizing that three H2tart2- ligands coordinate with tungsten centers rather than RE cations. For all we know, 1-5 delegate the infrequent RE-implanted STs functionalized by triplicate H2tart2- bridges. Furthermore, fluorescent performances of 1-4 as well as magnetic properties of 2-4 have been surveyed.0 Kommentare 0 Geteilt 39 Ansichten 0 Bewertungen
Mehr Storys