Retractions of scientific papers published by some Iran-affiliated scientists in the preceding decade have attracted much attention and publicity; however, the reasons for these retractions have not been documented. We searched the Retraction Watch Database to enumerate the retracted Iran-affiliated papers from December 2001 to December 2019 and aimed to outline the predominant reasons for retractions. The reasons included fake peer-review, authorship dispute, fabricated data, plagiarism, conflict of interest, erroneous data, and duplication. The Fisher's exact test was used to investigate the associations between retractions and their underlying reasons. We selected P  less then  0.05 to indicate the statistically significant differences. We found 697 retracted papers. Duplication (27%), plagiarism (26%), and fake peer-review (21%) were the most frequent reasons for retractions. Our study highlights the importance of urgent intervention to prevent the misconduct and questionable research practices that lead to retractions in Iran. Continually educating the scientists and postgraduate students about the ethics and norms of scientific publishing is an important measure to ensure publication of reliable, worthy, and impactful papers.In many areas of psychology, correlation-based network approaches (i.e., psychometric networks) have become a popular tool. In this paper, we propose an approach that recursively splits the sample based on covariates in order to detect significant differences in the structure of the covariance or correlation matrix. Psychometric networks or other correlation-based models (e.g., factor models) can be subsequently estimated from the resultant splits. We adapt model-based recursive partitioning and conditional inference tree approaches for finding covariate splits in a recursive manner. The empirical power of these approaches is studied in several simulation conditions. Examples are given using real-life data from personality and clinical research. In British Columbia (BC), there have been 2790 confirmed COVID-19 cases as of June 20, 2020. The aim of this project is to capture the effect of COVID-19 on the volume of surgery and adaptations to the surgical care of patients at a breast centre in BC. All proven or suspected breast cancer cases treated with surgery between March 16, 2019 and April 30, 2019 and March 16, 2020 and April 30, 2020 through the Providence Breast Centre were included in this review. The date ranges in 2020 mark the early COVID-19 pandemic period in BC and the large shift in operating room access during this time. In 2019, 99 patients underwent surgery for proven breast cancer and 30 patients for suspected breast cancer. In 2020, 162 patients underwent surgery for breast cancer and 34 for suspected breast cancer. Wait times from core biopsy to surgery and surgery to oncology consultation were improved in 2020 with a reduction of core biopsy to surgery time from 58 to 28days for patients seen during the pandemic. There was an increased use of regional anesthesia and same day discharge compared to 2019 with increases in regional anesthesia (41%-89%) and same day discharge (64%-86%) after adaptations to the pandemic were implemented. Changes such as improved access to telemedicine, timing for cancer surgeries, and safer anesthetic techniques in response to the pandemic will change breast cancer surgical care beyond the pandemic era. Centralization and team-based care is the way forward. Changes such as improved access to telemedicine, timing for cancer surgeries, and safer anesthetic techniques in response to the pandemic will change breast cancer surgical care beyond the pandemic era. Centralization and team-based care is the way forward.Purpose This article examines gig work-typified by technologically-based, on-demand, independent contractor arrangements-for people with disabilities. Methods To do so, it draws upon prior and current research to describe the nature of gig work for people with disabilities, as well as the challenges and new prospects that such work presents. It also discusses recent regulatory reforms and proposes improvements, particularly in light of the current pandemic. Results Participation in the traditional employment market for people with disabilities who can and wish to work remains limited, even when workplace accommodations and individualized adjustments are possible. Increasingly, though, self-directed or independently contracted work is a way for people with disabilities to participate in the mainstream economy. The "gig economy," in particular, has provided additional opportunities for self-directed work, although the novel coronavirus pandemic has required existing approaches to be reconceived. Conclusions The gig economy provides new prospects, as well as challenges, for people with disabilities to engage in meaningful work. https://www.selleckchem.com/products/1-methylnicotinamide-chloride.html It also requires innovative regulatory responses to the gig work relationship, especially during the pandemic era. With an ageing population, it is paramount for surgeons to comprehend the implications of age on surgical outcomes. This study aims to identify the effects of age on perioperative outcomes post-hepatectomy. Between 2001 and 2017, 357 hepatectomies were performed in our centre for malignancy. Data recorded include demographic, histopathology and perioperative outcomes. Patients were divided into three age groups (Group 1 < 65years, Group 2 65-74years, Group 3 ≥ 75years). With increasing age, there was a trend towards patient having ASA ≥ 3 (from 32.1% to 60.9%, p < 0.0001), clear margins (from 80.4% to 88.3%, p = 0.2256), days of hospitalisation (from 9.5 ± 6.9 to 12 ± 8.0, p = 0.0003), days of ICU admission (from 2.3 ± 2.8 to 2.8 ± 12.9, p = 0.0790) and morbidity (from 39% to 58.5%, p = 0.0073). Cardiovascular complications and postoperative delirium increase with age. There was no significant difference in mortality across the three groups. Univariate and bivariate binary logistic regressions foutes are achievable with careful patient selection and appropriate perioperative management.