.Pulmonary vein stenosis is a rare but severe complication of catheter ablation for arterial fibrillation (AF). Symptoms include dyspnea, hemoptysis, recurrent pneumonia, and pulmonary hypertension. We herein discuss a 27-year-old male patient who presented with hemoptysis and dyspnea three months after catheter ablation for AF. Computed tomography demonstrated an occluded left inferior pulmonary vein (LIPV) and left lower lung edema secondary to severe stenosis of the LIPV. The patient underwent treatment, including drug-coated balloon (DCB) venoplasty. Treatment of pulmonary vein stenosis involving percutaneous interventions with balloon angioplasty and stenting carry a high risk of restenosis. DCB therapy may be used to prevent stenosis. .Society is starting to come up with exciting applications for social robots like butlers, coaches, and waiters. However, these robots face a challenging task to meet people during a first encounter. This survey explores the literature that contributes to this task. We define a taxonomy based on psychology and sociology models Kendon's greeting model and Greenspan's model of social competence. We use Kendon's model as a framework to compare and analyze works that describe robotic systems that engage with people. To categorize individual skills, we use three components of Social Awareness that belong to Greenspan's model Social Sensitivity, Social Insight, and Communication. Under each section, we highlight some research gaps and propose research directions to address them. Through our analysis, we suggest significant research directions for enhanced first encounters. First, social scripts need to be evaluated under equal conditions. Second, interaction management and tracking for first encounters should consider state and observation uncertainties. Third, perception methods need lighter and robust integration in mobile platforms. Fourth, methods to explicitly define social norms are still scarce. Finally, research on social feedback and interaction recovery may fill the gaps of imperfect first encounters.Lockdown in India begins from 25 March and continues until 31 May 2020 due to the COVID-19 pandemic situation. Due to such an extended period of lockdown for about more than 2 months resulted in 1.38 billion populations restricted themselves from mass activities that contribute to air pollution. Thus, through our quantitative approach and trend analysis, the study aims to evaluate the changes in the level of PM2.5 as a major pollutant for the top ten polluted cities in India, with a special emphasis on finding what happened to its concentration after the lockdown ended. Thus, to better understand the nature of variation in PM2.5, we divide the entire 7 months into three periods for our analysis, i.e., before lockdown (1 January to 24 March), during lockdown (25 March to 31 May), and post-lockdown or unlock 1 and 2 (1 June to 31 July). Our investigation reveals that before lockdown, all the top polluted cities of India violating the national standard of PM2.5, as the lockdown begins interestingly, all cities show a momentous reduction in PM2.5 concentration. Further, surprisingly we found that after the post-lockdown period, the concentration of PM2.5 was reduced to minimal, as the average concentration of PM2.5 for all the cities is below the National Ambient Air Quality Standard (NAAQS). The study reveals that the lockdown has a consequence in improving overall air quality for the top polluted cities in India and further lockdown in the future with proper planning should be considered an alternative approach to restrain excessive emissions.
  Medical students display a high prevalence of psychopathological symptomatology, stress and burnout, which may continue in their time as resident and fully qualified doctors. The aim of this study is to evaluate and compare the effects of a mindfulness-based programme on these variables in an experimental group of medical students who underwent the intervention programme compared to a control group who did not.
 
  A quasi-experimental study of two independent groups (experimental and control) with two repeated measures (pre and post) was performed.  https://www.selleckchem.com/products/semaglutide.html  Eight sessions of 2-h duration each were held over the course of 16weeks. A total of 143 students participated in the study, 68 in the intervention group and 75 in the control group. A sociodemographic questionnaire was administered along with the Symptom Checklist-90-R (SCL-90-R), the Perceived Stress Scale (PSS) and the Maslach Burnout Inventory-Student Survey (MBI-SS).
 
  Our study revealed a clear improvement compared to the control group in perceived stress and psychopathological symptomatology, in the Global Severity Index, Positive Symptom Total and the primary symptom dimensions of somatization, obsessive compulsive, interpersonal sensitivity and anxiety of the SCL-90-R. The improvement was significant at both intra- and intergroup level. No impact was found on the level of burnout.
 
  The mindfulness-based programme that was used resulted in an improvement in psychopathological symptomatology and stress, with no effect observed on BO score. This study can contribute to the design of a training programme to promote effective self-care and stress management strategies for both medical students and doctors.
 The mindfulness-based programme that was used resulted in an improvement in psychopathological symptomatology and stress, with no effect observed on BO score. This study can contribute to the design of a training programme to promote effective self-care and stress management strategies for both medical students and doctors.A method for the one-step construction of 3,3,4,4-tetrafluorinated piperidines from nitrones and readily accessible tetrafluorinated iodobromobutane is described. The reaction requires an excess amount of ascorbic acid as the terminal reductant and is performed in the presence of an iridium photocatalyst activated by blue light. The annelation is a result of a radical addition at the nitrone, intramolecular nucleophilic substitution, and reduction of the N-O bond.The food enzyme is a serine protease complex, containing trypsin (EC 3.4.21.4) and chymotrypsin (EC 3.4.21.1), obtained from porcine pancreas by Neova Technologies Inc. The serine protease complex is intended to be used for hydrolysis of whey proteins employed as ingredients of infant formulae and follow-on formulae. Based on maximum use levels and the maximum permitted protein content in infant formulae, dietary exposure to the food enzyme-total organic solids (TOS) was estimated to be 18 mg TOS/kg body weight (bw) per day for infants. In the toxicological evaluation, clinical studies with pharmaceutical preparations containing pancreatic enzymes were considered. Hypersensitivity to the pharmaceuticals was identified as the major side effect. However, allergic reactions to porcine pancreatic enzymes in hydrolysed foods have not been reported. The Panel considered that a risk of allergic sensitisation to this food enzyme after consumption of products prepared by hydrolysis of milk cannot be excluded in infants, but considers the likelihood to be low.