Conclusions Understanding the reality of people with fragile X syndrome and their families will help to adapt services and develop concrete plans for their future.Caffeine and catechin are two main components of instant green tea, and are essential components of tea quality. This paper mainly focuses on the feasibility of rapidly determining instant green tea components by using a portable near infrared (NIR) spectrometer. The two main components (caffeine and catechin) were studied. In addition, the instrument performance levels of portable and benchtop NIR spectrometers were studied and compared. Quantitative models developed using portable and benchtop spectrometers for measuring caffeine, total catechins, and four individual catechins were established and compared. After preprocessing using standard normal variate (SNV), the Rp values of the caffeine, total catechins, (-)-epigallocatechin, (-)-epigallocatechin 3-gallate, (-)-epicatechin, and (-)-epicatechin gallate in the partial least squares models for a portable NIR spectrometer were 0.974, 0.962, 0.669, 0.945, 0.942 and 0.905, respectively. For a benchtop NIR spectrometer, Rp values were 0.993, 0.958, 0.883, 0.955, 0.966 and 0.936, respectively. Passing-Bablok regression method results indicated no significant differences between the two instruments. A genetic algorithm (GA) and the successive projections algorithm (SPA) were used to screen the wavelength of the NIR spectrum and establish the model. The GA obtained more robust modeling results. This study concludes that the developed portable spectroscopy system combined with appropriate variable selection methods can be effectively used for rapid determination of caffeine, total catechins, and four individual catechins in instant green tea.It is of great significance to detect the components of turbid solutions using hyperspectral imaging technology in analytical chemistry. To solve the problems including complex computations and poor interpretations in previous researches, this study proposed a novel quantitative detection model based on contour extraction and ellipse fitting for turbid solutions. https://www.selleckchem.com/products/TG100-115.html A wedge-shaped sample reservoir was firstly designed to increase the dimensions of light spot information. Subsequently, the visual features of the spot were extracted from their hyperspectral images using ellipse fitting. Partial least squares regression was performed for the concentrations of Intralipid-20% and the ellipse eigenvectors, and it gave a good prediction ability with the correlation coefficient (Rp) of 0.98 and the root-mean-square error (RMSEP) of 0.07%. Experimental results indicate that ellipse fitting model shows excellent performances in more reasonable interpretation, better stability, less computation, clearer visualization effect and lower requirements for data acquisition process, compared with conventional light intensity model and abstract textural features model. It can be concluded that using ellipse fitting method based on hyperspectral imaging to detect compositions of complex mixed solutions is a potential progress.A new approach to determination of water content in raw perlites, an industrially important material, and obsidian was proposed, utilizing diffuse reflectance spectroscopy in the near-IR region. The phase composition of the perlite of the perlite samples was over 94% rhyolitic volcanic glass, with only small admixture of other components. The observed volatile species contents detected from both thermogravimetric analysis (TG) and the loss of ignition method (LOI) varied from 3 to 7%. The samples with the highest content of volatiles released over the temperature interval 30-250 °C (based on thermogravimetric analysis) displayed sharp signals in the 1H MAS NMR spectra, with chemical shifts of 4.6-4.7 ppm attributed to water molecules of high mobility. Using IR spectra taken in the near-infrared region, the water content of perlites was evaluated using the combination mode (ν + δ)H2O near 5240 cm-1. The band area depended on the H2O content, with the highest value found for the sample which displayed the highest mass loss in the thermoanalytical experiments. The samples showed variations in properties depending on the location in the deposit they were taken from. The relationship between water content determined gravimetrically and calculated band areas showed a correlation coefficient of 0.78 and 0.74 for TG and LOI respectively. The correlation was significantly improved by adding internal standards, hexadecyltrimethylammonium bromide salt (HDTMA) or layered hydrosilicate talc, to the perlite samples, and then normalizing the spectra of the mixtures to selected bands of those standards (R2 = 0.89 and 0.88 respectively for TG methods). A better correlation between infrared and TG/LOI results was obtained for HDTMA-Br than for talc. The proposed method using standards could be a reliable way of estimating water content in raw perlites in processing plants.Hypoderma antigens are involved in host inflammation and immune response, conditioning larvae survival. In this study, peripheral blood mononuclear cell (PBMC) cultures from Hypoderma sensitized and unsensitized cattle were performed to determine the effect of H. lineatum antigens and incubation time (18, 24, 48 h) on IFN-γ, TNF-α, IL-10 and IL-4 mRNA gene expression determined by RT-qPCR. TNF-α and IL-4 gene expression were higher in Hypoderma previously sensitized PBMCs, suggesting that a mixed Th1/Th2 response may play a significant role in host defence reactions against Hypoderma exhibited by previously infested cattle. Incubation time had a significant effect on IL-10 and TNF-α gene expression, which decreased over time. Regarding to H. lineatum antigens, the crude larval extract and the purified fraction hypodermin B (HB) produced a significant reduction of the mRNA expression levels of the proinflammatory cytokine, IFN-γ; moreover, the HB had a stimulating effect on the mRNA gene expression of the anti-inflammatory cytokine IL-10, demonstrating that the parasite would modulate the host defence mechanisms by avoiding harmful immune responses that would limit its survival into the host tissues.