Garden bird feeding constitutes a massive provision of food that can support bird communities, but there is a growing concern it might favour the establishment of exotic species that could be detrimental to others. How bird species compete with novel species for this anthropogenic food resources needs to be assessed. Here, we investigated competition in wintering bird communities at garden birdfeeders. https://www.selleckchem.com/products/unc1999.html We evaluated whether - and how much - bird access to resources is hampered by the presence of putative superior competing species, among which the Rose-ringed parakeet, the most abundant introduced species across Europe. Using the nation-wide citizen science scheme BirdLab, in which volunteers record in real-time bird attendance on a pair of birdfeeders during 5-minute sessions, we tested whether i) cumulative bird presence time and richness at birdfeeders, and ii) species probability of presence at birdfeeders, were influenced by three large species (the Eurasian magpie, the Eurasian collared-dove, and the Roshe ecological net effects at stake.Background Prior studies demonstrated that older adults tend to undergo less surgery for thyroid cancer. Our objective was to use a discrete choice experiment to identify factors influencing surgical decision-making for older adults with thyroid cancer. Methods Active and candidate members of the American Association of Endocrine Surgeons were invited to participate in a web-based survey. Multinomial logistic regression was utilized to assess patient and surgeon factors associated with treatment choices. Results Complete survey response rate was 25.7%. Most respondents were high-volume surgeons (88.5%) at academic centers (76.9%). Multinomial logistic regression demonstrated that patient age was the strongest predictor of management. Increasing age and comorbidities were associated with the choice for active surveillance (P = .000), not performing a lymphadenectomy in patients with nodal metastases (relative-risk ratio 2.5, 95% CI 1.4-4.2, P = .002 and relative-risk ratio 1.6, 95% CI 1.2-2.1, P = .004, respectively), and recommending hemithyroidectomy versus total thyroidectomy for a cancer >4 cm (relative-risk ratio 4.4, 95% CI 2.5-7.9, P = .000 and relative-risk ratio 3.4, 95% CI 2.3-5.1, P = .000, respectively). Surgeons with ≥10 years of experience (relative-risk ratio 3.3, 95% CI 1.1-10.3, P = .039) favored total thyroidectomy for a cancer less then 4 cm, and nonfellowship trained surgeons (relative-risk ratio 7.3, 95% CI 1.3-42.2, P = .027) opted for thyroidectomy without lymphadenectomy for lateral neck nodal metastases. Conclusion This study highlights the variation in surgical management of older adults with thyroid cancer and demonstrates the influence of patient age, comorbidities, surgeon experience, and fellowship training on management of this population.There have been repeated supply shortages of bacillus Calmette-Guérin (BCG), the gold-standard immunotherapy for patients with high-grade non-muscle-invasive bladder cancer (NMIBC). Organizations have issued guidance on coping with this shortage, including administering split-dose BCG such that one vial may treat up to three patients. However, logistical implementation of this strategy in a real-world setting is hampered by the recommendation to use BCG within 2 h of reconstitution. We assessed BCG viability in terms of colony-forming units (CFUs) and demonstrated that viability remained constant for at least 8 h after reconstitution (decline at 8 h of 9.1% for lot 1 [p = 0.3] and 4.8% for lot 2 [p = 0.2]). While the viability at 24 h was lower, it did not drop to a level below that of reducing the BCG dose to one-third (67% for lot 1 and 60% for lot 2) and remained close to 50% for at least 72 h. An in vitro model using co-culture of BCG and leukocytes with a BCG-sensitive cell line (RT4-V6) demonstrated no decrease in the cytotoxic potential of BCG at 72 h. In times of shortage, BCG vials may be split and administered for up to at least 8 h (or even 72 h) after reconstitution, allowing more patients to benefit from BCG while placing less strain on the logistics of clinical practice. PATIENT SUMMARY The current supply of and increased demand for bacillus Calmette-Guérin (BCG), used in the treatment of bladder cancer, have led to repeated BCG shortages. One way to address this is to provide a reduced BCG dose to allow more patients to be treated. In this study we found that BCG viability remains clinically relevant up to 72 h after reconstitution, thus allowing for more patients to be treated from a single vial.Studies in animal models have revealed that long exposures to anesthetics can induce apoptosis in the newborn and young developing brain. These effects have not been confirmed in humans because of the lack of a non-invasive, practical in vivo imaging tool with the ability to detect these changes. Following the successful use of ultrasound backscatter spectroscopy (UBS) to monitor in vivo cell death in breast tumors, we aimed to use UBS to assess the neurotoxicity of the anesthetic sevoflurane (SEVO) in a non-human primate (NHP) model. Sixteen 2- to 7-day-old rhesus macaques were exposed for 5 h to SEVO. Ultrasound scanning was done with a phased array transducer on a clinical ultrasound scanner operated at 10 MHz. Data consisting of 10-15 frames of radiofrequency (RF) echo signals from coronal views of the thalamus were obtained 0.5 and 6.0 h after initiating exposure. The UBS parameter "effective scatterer size" (ESS) was estimated by fitting a scattering form factor (FF) model to the FF measured from RF ech group and 5 of 5 subjects from the control group fulfilled the acceptance criteria. All subjects in the apoptotic group that passed the acceptance criterion exhibited a significant ESS reduction at 6.0 h. These changes (-6.4%, 95% Interquartile Range -14.3% to -3.3%) were larger than those in the control group (-0.8%, 95% Interquartile Range -2.0% to 1.5%]). Data with a low prevalence of diffuse scattering corresponded to possibly biased results. Thus, ESS has the potential to detect changes in brain microstructure related to anesthesia-induced apoptosis.