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Background Breaking bad news (BBN; e.g., delivering a cancer diagnosis) is perceived as one of the most demanding communication tasks in the medical field and associated with high levels of stress. Physicians’ increased stress in BBN encounters can negatively impact their communication performance, and in the long term, patient-related health outcomes. Although a growing body of literature acknowledges the stressful nature of BBN, little has been done to address this issue. Therefore, there is a need for appropriate tools to help physicians cope with their stress response, so that they can perform BBN at their best. In the present study, we implement the biopsychosocial model of challenge and threat as theoretical framework. According to this model, the balance between perceived situational demands and perceived coping resources determines whether a stressful performance situation, such as BBN, is experienced as challenge (resources > demands) or threat (resources Methods In a randomized controlled trial with a 2 (SAR vs. control) x 2 (WE vs. control) between-subjects design, we will determine the effects of both interventions on stress response and BBN skills performance in N = 200 third-year medical students during a simulated BBN encounter. To identify students’ stress responses, we will assess their perceived coping resources and task demands, record their cardiovascular activity, and measure salivary parameters before, during, and after BBN encounters. Three trained raters will independently score students’ BBN skills performances. Discussion Findings will provide unique insights into the psychophysiology of medical students who are tasked with BBN. Parameters can be understood more comprehensively from the challenge and threat perspective and linked to performance outcomes. If proven effective, the evaluated interventions could be incorporated into the curriculum of medical students and facilitate BBN skills acquisition. Trial registration ClinicalTrials.gov (NCT05037318), September 8, 2021.

Gastroenterology, Digestive Endoscopy and Hepatology have faced significant improvements in terms of diagnosis and therapy in the last decades. However, many fields still remain poorly explored, and many questions unanswered. Moreover, basic-science, as well as translational and clinical discoveries, together with technology advancement will determine further steps toward a better, refined care for many gastroenterological disorders in the future. Therefore, the Young Investigators of the Italian Society of Gastroenterology (SIGE) joined together, offering a perspective on major future innovations in some hot clinical topics in Gastroenterology, Endoscopy, and Hepatology, as well as the current pitfalls and the grey zones.

This systematic literature review aimed to provide an overview of the characteristics and methods used in studies applying the Disability-Adjusted Life Years (DALY) concept for infectious diseases within European Union (EU)/European Economic Area (EEA)/European Free Trade Association (EFTA) countries and the United Kingdom. Electronic databases and grey literature were searched for articles reporting the assessment of DALY and its components. We considered studies in which researchers performed DALY calculations using primary epidemiological data input sources. We screened 3,053 studies of which 2,948 were excluded and 105 studies met our inclusion criteria. Of these studies, 22 were multi-country and 83 were single-country studies, of which 46 were from the Netherlands. Food- and water-borne diseases were the most frequently studied infectious diseases. Between 2015 and 2022, the number of burden of infectious disease studies was 1.6 times higher compared to that published between 2000 and 2014. Almost all studies (97%) estimated DALYs based on the incidence- and pathogen-based approach and without social weighting functions; however, there was less methodological consensus with regards to the disability weights and life tables that were applied. The number of burden of infectious disease studies undertaken across Europe has increased over time. Development and use of guidelines will promote performing burden of infectious disease studies and facilitate comparability of the results., peer-reviewed

Background The operating room nurses have encountered several challenges during the current COVID-19 Pandemic, which subsequently impact their clinical performance. The present study aimed to investigate the experiences of operating room health care professionals' regarding the COVID-19 pandemic challenges in southern Iran. Methods This is a descriptive qualitative study. The required data were collected using in-depth and semi-structured interviews. Accordingly, 19 operating room health care professions were included in this study through purposive sampling. The data were collected from February 2020 to August 2021 and then analyzed using the Granheim and Lundman’s method. Results Three main themes and 9 sub-themes were presented in this study. They included: 1- Challenges of applying protocols and standards of care in the COVID-19 pandemic in the operating room (lack of specific guidelines regarding care protocols and standards for crisis management of Covid-19 in the operating room and impossibility of keeping social distance in the operating room). 2- Professional challenges (tedious and hard work, professional burnout, lack of adequate support by the managers and lack of personal protective equipment). 3-Psychological crises (indescribable anxiety and worry, parenting stress, and weakened resilience). Conclusion Based on the findings of the present study, it was indicated that lack of a specific guideline in the COVID-19 pandemic led to a sense of indecision and confusion among operating room staff. In this regard, performing tedious tasks, feelings of tiredness and exhaustion, lack of support by the authorities, and lack of access to adequate facilities and equipment were reported as the professional challenges of the healthcare staff in the current COVID-19 pandemic, which consequently affected the quality of care and patient’s safety. It seems that hospital officials can use the results reported in this study for efficient planning and effective management during the COVID-19 pandemic.

INTRODUCTION: Comprehensive tobacco control policies are lacking in Indonesia where smoking prevalence in males is among the highest in the world. This study aims to explore the knowledge, attitude, opportunities and challenges to tobacco control among local stakeholders. METHODS: This is a qualitative study using in-depth interviews. Four study areas included Bengkulu Province, Bengkulu City, Seluma District, and Kaur District. Eighteen participants interviewed were from policymakers, legislators, and civil societies during November-December 2020. Thematic data analysis was used. RESULTS: While knowledge and support of the existing Smoke Free Policy (SFP) were high, that of other policies such as outdoor tobacco advertising (OTA) ban and tobacco product display ban were low. Among others, one opportunity was there is already SFP regulation in each study area, to which such bans can be added. Among others, three major challenges were: (a) lack of enforcement of the existing SFP, (b) lack of national regulation to ban OTA and product display, and (c) counter actions by the tobacco industry. CONCLUSION: The opportunities and challenges identified could be lessons learnt for more comprehensive tobacco control especially by local governments in Indonesia and other countries with similar settings.

Aims Inherited bleeding diseases greatly affect education, working, job, social activities and quality of life. We aimed to discover the sources of identity challenges among patients with Haemophilia. Design The present study has been designed and performed as a qualitative content analysis research. Methods Participants were purposively selected from haemophilia patients referred to our clinic during one year, from March 2018 to April 2019. Data collection was done through semi‐structured, in‐depth interviews using purposeful sampling. Data were analysed based on Granheme and Landman method. The main categories were fear of rejection, losing social roles, discrimination and stigma and marriage breakdown. Results Patients with haemophilia encounter several challenges due to physical and social constraints caused by the disease. Such challenges result in disturbances in the self‐identity of the patients. Conclusion According to the results of this study, the nurses should plan to have attention to the patients with haemophilia, based on more protection and better supports.

BackgroundAlzheimer's disease (AD) is a progressive and debilitating disorder that strongly affects people with AD and their families. The changes in signs of the disease and its treatment lead to many challenges in people with AD that affect the performance and the ability of caregivers, their social life, and physical, emotional, and psychological aspects of caregivers' health. Therefore, this study was designed to develop and validate the Care Challenge Scale (CCS) for family caregivers of people with AD in the care context of Iran.MethodThis is a cross-sectional study, and the primary scale was based on 14 semi-structured interviews with family caregivers of Iranian people with AD. In the next phase, the psychometric features were assessed, including the face validity (qualitative and quantitative), content validity (qualitative and quantitative), item analysis, structural validity (exploratory and confirmatory factors), and construct validity (convergent and discriminant validity). Finally, the reliability was assessed using internal consistency (Cronbach's alpha, McDonald's omega coefficient, and the average inter-item correlation), stability (intraclass correlation coefficient), and absolute reliability.ResultsTotally, 435 Iranian family caregivers filled out online questionnaires, with a mean age of 50.26(±13.24) years. Based on the results of the qualitative phase, an item pool was generated with 389 items, and after deleting overlapping and unrelated items, the CCS with 14 items was created. The results of the quantitative phase showed that the CCS consists of two factors with 10 items each, which are named effective role-play challenge and lack of social–financial support, and they explained 42.23% of the total variance. Furthermore, the results of confirmatory factor analysis showed a good fitness of the scale structure model, and it had convergent and discriminant validity. The reliability indexes showed this scale has internal consistency and stability.ConclusionThe most care challenge among Iranian family caregivers of people with AD is effective role-play challenges and lack of social–financial support. The scale as designed has good validity, internal consistency, and stability that can be used by therapists, nurses, and researchers for the assessment of the challenges of this population.

Background Although many musicians perceive music performance anxiety (MPA) as a significant problem, studies about the psychobiological and performance-related concomitants of MPA are limited. Using the biopsychosocial model of challenge and threat as theoretical framework, we aim to investigate whether musicians' changes in their psychobiological responses and performance quality from a private to a public performance are moderated by their general MPA level. According to the challenge and threat framework, individuals are in a threat state when the perceived demands of a performance situation outweigh the perceived resources, whereas they are in a challenge state when the perceived resources outweigh the perceived demands. The resources-demands differential (resources minus demands) and the cardiovascular challenge-threat index (sum of cardiac output and reverse scored total peripheral resistance) are the main indices of these states. We postulate that the relationship between general MPA level and performance quality is mediated by these challenge and threat measures. Methods We will test 100 university music students reporting general MPA levels ranging from low to high. They will perform privately (i.e., without audience) and publicly (i.e., with an audience) on two separate days in counterbalanced order. During each performance session, we will record their cardiovascular and respiratory activity and collect saliva samples and self-reported measures. Measures of primary interest are self-reported anxiety, the resources-demands differential, the cardiovascular challenge-threat index, sigh rate, total respiratory variability, partial pressure of end-tidal carbon dioxide and the salivary biomarkers cortisol, dehydroepiandrosterone, and alpha-amylase. Both, the participants and anonymous experts will evaluate the performance quality from audio recordings. Discussion The results of the planned project are expected to contribute to a more comprehensive understanding of the psychobiology of MPA and of the processes that influence musicians’ individual reactions to performance situations. We also anticipate the findings of this project to have important implications for the development and implementation of theory-based interventions aimed at managing musicians’ anxiety and improving performance quality. Thanks to the use of multimethod approaches incorporating psychobiology, it might be possible to better assess the progress and success of interventions and ultimately improve musicians’ chance to have a successful professional career., + ID: 577187 + PeerReviewed

It has been hypothesized that androgens respond to the social interactions as a way to adjust the behavior of individuals to the challenges of the social environment in an adaptive manner. Therefore, it is expected that transient changes in circulating androgen levels within physiological scope should impact the state of the brain network that regulates social behavior, which should translate into adaptive behavioral changes. Here, we examined the effect that a transient peak in androgen circulating levels, which mimics socially driven changes in androgen levels, has on the forebrain state, which harbors most nuclei of the social decision-making network. For this purpose, we successfully induced transient changes in circulating androgen levels in an African cichlid fish (Mozambique tilapia, Oreochromis mossambicus) commonly used as a model in behavioral neuroendocrinology by injecting 11-ketotestosterone or testosterone, and compared the forebrain transcriptome of these individuals to control fish injected with vehicle. Forebrain samples were collected 30 min and 60 min after injection and analyzed using RNAseq. Our results showed that a transient peak in 11-ketotestosterone drives more accentuated changes in forebrain transcriptome than testosterone, and that transcriptomic impact was greater at the 30 min than at the 60 min post-androgen administration. Several genes involved in the regulation of translation, steroid metabolism, ion channel membrane receptors, and genes involved in epigenetic mechanisms were differentially expressed after 11-ketotestosterone or testosterone injection. In summary, this study identified specific candidate genes that may regulate socially driven changes in behavioral flexibility mediated by androgens. Fundação para a Ciência e Tecnologia - FCT info:eu-repo/semantics/publishedVersion

Clinical testing of bronchial hyperreactivity (BHR) provides valuable information in asthma diagnostics. Nevertheless, the test results depend to a great extent on the testing procedure: test substance, apparatus and protocol. In Nordic countries, three protocols predominate in the testing field: Per Malmberg, Nieminen and Sovijarvi methods. However, knowledge of their equivalence is limited. We aimed to find equivalent provocative doses (PD) to obtain similar bronchoconstrictive responses for the three protocols. We recruited 31 patients with suspected asthma and health care workers and performed BHR testing with methacholine according to Malmberg and Nieminen methods, and with histamine according to Sovijarvi. We obtained the individual response-dose slopes for each method and predicted equivalent PD values. Applying a mixed-model, we found significant differences in the mean (standard error of mean) response-dose (forced expiratory volume in one second (FEV1)%/mg): Sovijarvi 7.2 (1.5), Nieminen 13.8 (4.2) and Malmberg 26 (7.3). We found that the earlier reported cut-point values for moderate BHR and marked BHR between the Sovijarvi (PD15) and Nieminen (PD20) methods were similar, but with the Malmberg method a significant bronchoconstrictive reaction was measured with lower PD20 values. We obtained a relationship between slope values and PD (mg) between different methods, useful in epidemiological research and clinical practice.

Background: Smoking is among the top contributors to deaths and disability-adjusted life years in Indonesia, particularly among males. In 2012, a presidential decree encouraged provinces and districts to implement a smoke-free policy (SFP). This study aims to evaluate compliance and explore the challenges in the implementation. \ud \ud Methods: Through a mixed-methods design, we used quantitative methods to examine the compliance with six criteria including signage, no active smoking, no selling, no advertisement, no smoke, and no ashtray at SFP facilities in Bengkulu city. We observed SFP compliance at 105 facilities, including health/educational facilities, places of worship, workplaces, and indoor/outdoor public facilities. We also used a qualitative method to explore challenges in the implementation through interviews with the government and legislators. \ud \ud Results: The compliance rate to all six criteria was 38% overall, ranging from 17% at outdoor public facilities to 67% at health facilities. We found no spatial patterning, as shown by non-significant differences in compliance rates between SFP facilities inside and outside of 1-kilometer around the provincial and city health offices. Implementation challenges included lack of sensitization, lack of coordination, and limited budget. \ud \ud Conclusion: The compliance was relatively low due to several challenges, which could serve as a tobacco control policy lesson in a lower-middle-income country.

Background Hospital facilities in China are experiencing increased strain on existing systems and medical resources, necessitating the use of home-based hospice and palliative care (HBHPC). HBHPC primarily relies on community nurses and related medical personnel. Understanding the challenges that community nurses face when providing this form of care is urgently needed to optimize the design and delivery of HBHPC. Our study aimed to gain insight into community nurses’ challenges when providing HBHPC for patients. Methods We performed a descriptive qualitative study using a phenomenology approach. Purposive sampling was used to recruit 13 nurses from two community health service centers in Jinan, Shandong Province, China. A thematic analysis was applied to identify themes from the transcribed data. Results Three major themes emerged: 1) Community nurses’ inadequate self-preparation for providing HBHPC; 2) Patients and their families’ non-collaboration in HBHPC; 3) Community health service career disadvantages. Many negative experiences can be attributed to institutional barriers. Conclusion Community nurses faced multifaceted challenges in home care settings. This study could provide a framework for guiding the improvement of interventional variables in the provision of HBHPC. Future research should involve developing effective methods of improving community nurses’ job motivation and community health service institutions’ incentive systems, as well as increasing advocacy around HBHPC.

Artificial intelligence (AI) methods for the automatic detection and quantification of COVID-19 lesions in chest computed tomography (CT) might play an important role in the monitoring and management of the disease. We organized an international challenge and competition for the development and comparison of AI algorithms for this task, which we supported with public data and state-of-the-art benchmark methods. Board Certified Radiologists annotated 295 public images from two sources (A and B) for algorithms training (n=199, source A), validation (n=50, source A) and testing (n=23, source A; n=23, source B). There were 1,096 registered teams of which 225 and 98 completed the validation and testing phases, respectively. The challenge showed that AI models could be rapidly designed by diverse teams with the potential to measure disease or facilitate timely and patient-specific interventions. This paper provides an overview and the major outcomes of the COVID-19 Lung CT Lesion Segmentation Challenge - 2020.

International audience; This paper relates the post-analysis of the first edition of the HEad and neCK TumOR (HECKTOR) challenge. This challenge was held as a satellite event of the 23rd International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2020, and was the first of its kind focusing on lesion segmentation in combined FDG-PET and CT image modalities. The challenge's task is the automatic segmentation of the Gross Tumor Volume (GTV) of Head and Neck (HandN) oropharyngeal primary tumors in FDG-PET/CT images. To this end, the participants were given a training set of 201 cases from four different centers and their methods were tested on a held-out set of 53 cases from a fifth center. The methods were ranked according to the Dice Score Coefficient (DSC) averaged across all test cases. An additional inter-observer agreement study was organized to assess the difficulty of the task from a human perspective. 64 teams registered to the challenge, among which 10 provided a paper detailing their approach. The best method obtained an average DSC of 0.7591, showing a large improvement over our proposed baseline method and the inter-observer agreement, associated with DSCs of 0.6610 and 0.61, respectively. The automatic methods proved to successfully leverage the wealth of metabolic and structural properties of combined PET and CT modalities, significantly outperforming human inter-observer agreement level, semi-automatic thresholding based on PET images as well as other single modality-based methods. This promising performance is one step forward towards large-scale radiomics studies in HandN cancer, obviating the need for error-prone and time-consuming manual delineation of GTVs. (C) 2022 The Authors. Published by Elsevier B.V.

Few studies to date have evaluated dementia care in Malaysia, and the focus of studies has primarily been on epidemiological and laboratory research. In this study, we aimed to identify potential challenges for the delivery of dementia care in Malaysia and priorities for research and enhancing existing dementia care. This study used thematic analysis to evaluate the open and focus group workshop discussions guided by semi-structured questions. Triangulation of the collected data (sticky notes, collated field notes, and transcripts of discussions) was achieved through stakeholder consensus agreement during a workshop held in 2017. Five main themes as priorities for dementia care were identified: (1) availability of a valued multi-disciplinary care service, (2) accessibility of training to provide awareness, (3) the functionality of the governance in establishing regulation and policy to empower care services, (4) perceived availability and accessibility of research data, and (5) influence of cultural uniqueness. The findings of this study seek to enhance existing dementia care in Malaysia but have potential application for other low and middle-income countries with a similar social and health care set up. The constructed relationship between themes also tries to tackle the challenges in a more efficient and effective manner, as none of these aforementioned issues are standalone challenges. In addition, we demonstrated how a carefully constructed workshop with defined aims and objectives can provide a useful analysis tool to evaluate health and social care challenges in a multidisciplinary forum.

Background To prepare key stakeholders for the global COVID-19 vaccination rollout, the World Health Organization and partners developed online vaccination training packages. The online course was launched in December 2020 on the OpenWHO learning platform. This paper presents the findings of an evaluation of this course. Objective The aim of this evaluation was to provide insights into user experiences and challenges, measure the impact of the course in terms of knowledge gained, and anticipate potential interest in future online vaccination courses. Methods The primary source of data was the anonymized information on course participants, enrollment, completion, and scores from the OpenWHO platform’s statistical data and metric reporting system. Data from the OpenWHO platform were analyzed from the opening of the courses in mid-December 2020 to mid-April 2021. In addition, a learner feedback survey was sent by email to all course participants to complete within a 3-week period (March 19 to April 9, 2021). The survey was designed to determine the perceived strengths and weaknesses of the training packages and to understand barriers to access. Results During the study period, 53,593 learners enrolled in the course. Of them, 30,034 (56.0%) completed the course, which is substantially higher than the industry benchmark of 5%-10% for a massive open online course (MOOC). Overall, learners averaged 76.5% on the prequiz compared to 85% on the postquiz, resulting in an increase in average score of 9%. A total of 2019 learners from the course participated in the survey. Nearly 98% (n=1647 fully agree, n=308 somewhat agree; N=1986 survey respondents excluding missing values) of respondents fully or somewhat agreed that they had more confidence in their ability to support COVID-19 vaccination following completion of this course. Conclusions The online vaccine training was well received by the target audience, with a measurable impact on knowledge gained. The key benefits of online training were the convenience, self-paced nature, access to downloadable material, and ability to replay material, as well as an increased ability to concentrate. Online training was identified as a timely, cost-effective way of delivering essential training to a large number of people to prepare for the COVID-19 vaccination rollout.

We examined the role of daily recovery for morning cognitive appraisal of work demands in a daily diary study. We predicted that psychological detachment from work during the evening would be associated with changes in cognitive appraisal from afternoon to the next morning. Additionally, we predicted that these associations are mediated by state of being recovered in the morning. We collected data from 183 employees with 3 daily measurement occasions over 2 consecutive workweeks. We analyzed the data using multilevel path modeling with latent variance decomposition into within- and between-person variance parts. Results showed that psychological detachment predicted a decrease in hindrance and threat appraisal but no change in challenge appraisal from afternoon to morning. State of being recovered mediated the relationship between psychological detachment and threat appraisal but not hindrance appraisal. Psychological detachment was indirectly related to an increase in challenge appraisal via state of being recovered in the morning. Our results provide insights on predictors of cognitive appraisal and the role of recovery for cognitive processes in the stress process. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Universal Health Coverage (UHC) is an ambitious goal in health service with sustainable development goal (SDG). Likewise this goal is a mean and end as well in comparison with other goals. The lessons that countries are currently learning from the COVID-19 pandemic all underscore that investing in health for all is not optional. Stable, equitable, prosperous and peaceful society and economy is only possible when no one is left behind. This global crisis created from COVID-19 pandemic could be an opportunity to seize the moment to make changes that benefit both UHC and health security. Foundations of Universal Health Coverage Philosophical Foundation The philosophical foundation of UHC is based with health care as fundamental human right and it is not limited with certain group or class of people (1). In the spirit of previous unifying concepts such as Health for All, basic health needs, and the Alma-Ata declaration, it presents a vision in which all citizens will enjoy a strong and efficient health system that spans preventive and curative medicine, affordable access to that health system, access to relevant medicines, and sufficient human resources. Current sustainable development goal (goal 3) universal health care has been modified and revised form of previous approach of primary health care, Millennium Development Goal (MDG) and other related movement in health care for justice. Previous developing countries health needs has been extended for all countries and accepted on the ground of justice and equity in SDG goal 3.

Background Flexible Assertive Community Treatment (FACT) is a model for treatment of long-term severe mental disorders. This method has become more widespread in Norway. Objective The objective of our study was to examine how the implementation of FACT teams in Norway has been affected by eHealth policy, infrastructure, and regulations. Another objective was to examine existing literature on eHealth interventions and challenges within FACT teams. Methods We have examined Norwegian policy regulating mental health services, laws and regulations, eHealth infrastructure, relevant literature on FACT teams, and current implementation of FACT in Norway. Results FACT teams are a wanted part of the Norwegian service system, but the current eHealth infrastructure makes sharing of data within teams and levels of health care challenging, even if eHealth regulations allow such sharing. This has been shown to be an issue in the current implementation of FACT teams in Norway. There is little or no existing research on the eHealth challenges facing FACT teams. Conclusions Weaknesses in the Norwegian eHealth infrastructure have been a barrier for an easy implementation of FACT teams in Norway. It is difficult to share information between the different levels of health care. We need systems that allow for easy, secure sharing of health information to and between the FACT team members and other involved health care workers.

Cancer immunotherapy is becoming more important in the clinical setting, especially for cancers resistant to conventional chemotherapy, including targeted therapy. Chimeric antigen receptor (CAR)-T cell therapy, which uses patient’s autologous T cells, combined with engineered T cell receptors, has shown remarkable results, with five US Food and Drug Administration (FDA) approvals to date. CAR-T cells have been very effective in hematologic malignancies, such as diffuse large B cell lymphoma (DLBCL), B cell acute lymphoblastic leukemia (B-ALL), and multiple myeloma (MM); however, its effectiveness in treating solid tumors has not been evaluated clearly. Therefore, many studies and clinical investigations are emerging to improve the CAR-T cell efficacy in solid tumors. The novel therapeutic approaches include modifying CARs in multiple ways or developing a combination therapy with immune checkpoint inhibitors and chemotherapies. In this review, we focus on the challenges and recent advancements in CAR-T cell therapy for solid tumors.

OBJECTIVES: The examination of retinal microvascular abnormalities through fundus photography is currently the best available non-invasive technique for assessment of cerebral vascular status. Several studies in the last decade have reported higher incidences of adverse cerebrovascular events in Schizophrenia (SCZ) and bipolar disorder (BD). However, retinal microvasculature abnormalities in SCZ and BD have remained under-explored, and no study has compared this aspect of SCZ and BD till date.METHODS: Retinal Images of 100 SCZ patients, BD patients, and healthy volunteers each were acquired by trained individuals using a non-mydriatic camera with a 40-degree field of view. The retinal images were quantified using a valid semi-automated method. The average of left and right eye diameters of the venules and arterioles passing through the extended zone between 0.5 and 2 disc diameters from the optic disc were calculated.RESULTS: The groups differed significantly with respect to average diameters of both retinal venules (P < 0.001) and retinal arterioles (P < 0.001), after controlling for age and sex. Both SCZ and BD patients had significantly narrower arterioles and wider venules compared to HV. There were also significant differences between SCZ and BD patients; patients with BD had narrower arterioles and wider venules.CONCLUSION: Considering the affordability and easy accessibility of the investigative procedure, retinal microvascular examination could serve as a potential screening tool to identify individuals at risk for adverse cerebrovascular events. The findings of the current study also provide a strong rationale for further systematic examination of retinal vascular abnormalities in SCZ and BD.

Introduction: In recent years, a significant decrease in the number of clinical trials was observed among EU countries. This decline could be attributed to several factors, including the financial crisis of EU countries, the requirements introduced by the Directive 2001/20/EC and the increased market attractiveness of not EU countries. Areas covered: The EU Clinical Trials Regulation (CTR) 536/2014 was adopted in April 2014 by the European Parliament. The main changes arising from the CTR, including but not limited to the activation of a new EU portal, the potentiation of the already existing EU database and the requirement to provide plain language summaries of clinical trials, are aimed to improve the competitiveness of Europe in clinical research scenario and promote a faster approval of clinical trials. In this review, data related to the CTR 536/2014 and its potential implications in terms of transparency are based on pertinent papers that were retrieved by the PubMed database and the internet. Expert opinion: The full implementation of the CTR 536/2014 requires close cooperation between EU member states and regulatory agencies. Some aspects should be carefully considered such as the interaction with ethics committees, the insurance coverage and the protection of personal data issues.

Video gaming as a popular form of leisure activity and its effect on cognition, brain function, and structure has come into focus in the field of neuroscience. Visuospatial cognition and attention seem to benefit the most, whereas for executive functions, memory, and general cognition, the results are contradictory. The particular characteristics of video games driving these effects remain poorly understood. We critically discuss major challenges for the existing research, namely, the lack of precise definitions of video gaming, the lack of distinct choice of cognitive ability under study, and the lack of standardized study protocols. Less research exists on neural changes in addition to cognitive changes due to video gaming. Existing studies reveal evidence for the involvement of similar brain regions in functional and structural changes. There seems to be a predominance in the hippocampal, prefrontal, and parietal brain regions; however, studies differ immensely, which makes a meta-analytic interpretation vulnerable. We conclude that theoretical work is urgently needed. .El efecto de los videojuegos -una forma popular de entretención- sobre la cognición y la estructura y el funcionamiento cerebral se ha centrado en el campo de la neurociencia. La cognición visoespacial y la atención parecen ser las más beneficiadas; en cambio, para las funciones ejecutivas, la memoria y la cognición general, los resultados son contradictorios. Las características específicas de los videojuegos que producen estos efectos siguen siendo poco conocidas. Se discuten de forma crítica los principales desafíos para la investigación existente, como la falta de definiciones precisas de los videojuegos, la falta de una elección clara de la capacidad cognitiva que se estudia y la falta de protocolos de estudio estandarizados. La investigación es pobre tanto para los cambios cognitivos como para los cambios neuronales que producen los videojuegos. Los estudios existentes revelan evidencia de la participación de regiones cerebrales similares para los cambios funcionales y estructurales. Aunque las regiones cerebrales hipocámpicas, prefrontales y parietales parecen estar más involucradas; los estudios difieren enormemente, lo que hace que una interpretación meta-analítica sea frágil. Se concluye que se requiere con urgencia de un adecuado trabajo teórico.Les jeux vidéo, loisir populaire, ont attiré l’intérêt des neurosciences quant à leurs effets sur la cognition, la structure et la fonction cérébrales. Si l’attention et la cognition visuospatiales semblent en bénéficier le plus, les résultats sont contradictoires pour les fonctions exécutives, la mémoire et la cognition générale. Les caractéristiques particulières des jeux vidéo à l’origine de ces effets restent mal comprises. Nous analysons de façon critique les principales difficultés pour la recherche actuelle, c’est-à-dire le manque de définitions précises du jeu vidéo, le manque de choix clair de capacité cognitive à l’étude et le manque de protocoles d’étude standardisés. Les modifications neuronales et les modifications cognitives dues au jeu vidéo font l’objet de peu de recherche. L’hippocampe, les régions préfrontale et pariétale semblent les plus concernées. Cependant, une interprétation méta-analytique est fragilisée par la grande variabilité des études. En conclusion, il est urgent de faire un travail théorique.

Breast cancer is the most common invasive cancer in women, affecting more than 10% of women worldwide. Microscopic analysis of a biopsy remains one of the most important methods to diagnose the type of breast cancer. This requires specialized analysis by pathologists, in a task that i) is highly time- and cost-consuming and ii) often leads to nonconsensual results. The relevance and potential of automatic classification algorithms using hematoxylin-eosin stained histopathological images has already been demonstrated, but the reported results are still sub-optimal for clinical use. With the goal of advancing the state-of-the-art in automatic classification, the Grand Challenge on BreAst Cancer Histology images (BACH) was organized in conjunction with the 15th International Conference on Image Analysis and Recognition (ICIAR 2018). A large annotated dataset, composed of both microscopy and whole-slide images, was specifically compiled and made publicly available for the BACH challenge. Following a positive response from the scientific community, a total of 64 submissions, out of 677 registrations, effectively entered the competition. From the submitted algorithms it was possible to push forward the state-of-the-art in terms of accuracy (87%) in automatic classification of breast cancer with histopathological images. Convolutional neuronal networks were the most successful methodology in the BACH challenge. Detailed analysis of the collective results allowed the identification of remaining challenges in the field and recommendations for future developments. The BACH dataset remains publically available as to promote further improvements to the field of automatic classification in digital pathology., Accepted for publication at Medical Image Analysis (Elsevier). Publication licensed under the Creative Commons CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Clinicians generally use the term “tall stature” to define a height more than two standard deviations above the mean for age and sex. In most cases, these subjects present with familial tall stature or a constitutional advance of growth which is diagnosed by excluding the other conditions associated with overgrowth. Nevertheless, it is necessary to be able to identify situations in which tall stature or an accelerated growth rate indicate an underlying disorder. A careful physical evaluation allows the classification of tall patients into two groups: those with a normal appearance and those with an abnormal appearance including disproportion or dysmorphism. In the first case, the growth rate has to be evaluated and, if it is normal for age and sex, the subjects may be considered as having familial tall stature or constitutional advance of growth or they may be obese, while if the growth rate is increased, pubertal status and thyroid function should be evaluated. In turn, tall subjects having an abnormal appearance can be divided into proportionate and disproportionate syndromic patients. Before initiating further investigations, the clinician needs to perform both a careful physical examination and growth evaluation. To exclude pathological conditions, the cause of tall stature needs to be considered, although most children are healthy and generally do not require treatment to inhibit growth progression. In particular cases, familial tall stature subject can be treated by inducing puberty early and leading to a complete fusion of the epiphyses, so final height is reached. This review aims to provide proposals about the management of tall children.

Phosphorylation is an essential process in biological events and is considered critical for biological functions. In tissues, protein phosphorylation mainly occurs on tyrosine (Tyr), serine (Ser) and threonine (Thr) residues. The balance between phosphorylation and dephosphorylation is under the control of two super enzyme families, protein kinases (PKs) and protein phosphatases (PPs), respectively. Although there are many selective and effective drugs targeting phosphokinases, developing drugs targeting phosphatases is challenging. PTP1B, one of the most central protein tyrosine phosphatases (PTPs), is a key player in several human diseases and disorders, such as diabetes, obesity, and hematopoietic malignancies, through modulation of different signaling pathways. However, due to high conservation among PTPs, most PTP1B inhibitors lack specificity, raising the need to develop new strategies targeting this enzyme. In this mini-review, we summarize three classes of PTP1B inhibitors with different mechanisms: (1) targeting multiple aryl-phosphorylation sites including the catalytic site of PTP1B; (2) targeting allosteric sites of PTP1B; (3) targeting specific mRNA sequence of PTP1B. All three types of PTP1B inhibitors present good specificity over other PTPs and are promising for the development of efficient small molecules targeting this enzyme.

Drug hypersensitivity reactions (DHRs) in childhood are mainly caused by betalactam or non-betalactam antibiotics, and non-steroidal anti-inflammatory drugs (NSAIDs). Laboratory tests for identifying children who are allergic to drugs have low diagnostic accuracy and predictive value. The gold standard to diagnose DHR is represented by the drug provocation test (DPT), that aims of ascertaining the causative role of an allergen and evaluating the tolerance to the suspected drug. Different protocols through the administration of divided increasing doses have been postulated according to the type of drug and the onset of the reaction (immediate or non immediate reactions). DPT protocols differ in doses and time interval between doses. In this position paper, the Italian Pediatric Society for Allergy and Immunology provides a practical guide for provocation test to antibiotics and NSAIDs in children and adolescents.

Introduction: Immigrants continue to face significant challenges in accessing primary healthcare (PHC) that often negatively impact their health. The present research aims to capture the perspectives of immigrants to identify potential approaches to enhance PHC access for this group. Methods: Focus group discussions (FGDs) were conducted among a sample of first-generation Bangladeshi immigrants who had experience with PHC in Canada. A total of 13 FGDs (7 among women, 6 among men) were conducted with 80 participants (women = 42, men = 38) in their preferred language, Bangla. We collected demographic information prior to each focus group and used descriptive statistics to identify the socio-demographic characteristics of participants. We applied thematic analysis to examine qualitative data to generate a list of themes of possible approaches to improve PHC access. Results: The focus group findings identified different levels of approaches to improve PHC access: individual-, community-, service provider-, and policy-level. Individual-level approaches included increased self-awareness of health and wellness and personal knowledge of cultural differences in healthcare services and improved communication skills. At the community level, supports for community members to access care included health education workshops, information sessions, and different support programs (eg, carpool services for senior members). Suggested service-level approaches included providers taking necessary steps to ensure an effective doctor-patient relationship with immigrants (eg, strategies to promote cultural competencies, hiring multicultural staff). FGD participants also raised the importance of government- or policy-level solutions to ensure high quality of care (eg, increased after-hour clinics and lab/diagnostic services). Conclusions: Although barriers to immigrants accessing healthcare are well documented in the literature, solutions to address them are under-researched. To improve healthcare access, physicians, community health centers, local health agencies, and public health units should collaborate with members of immigrant communities to identify appropriate interventions.

Introduction: It is well-recognized that containing COVID-19 successfully is determined by people’s prevention measures which are related to their knowledge, attitudes, and practices (KAP). This perception has attracted attention in low- and middle-income countries (LMIC) due to their fragile health systems and economies. The objective of this study was to understand how residents in Malawi perceived COVID-19, to determine the factors related to KAP. Methods: A semi-structured questionnaire was used for the data collection. A field-based survey was conducted among adult residents in Lilongwe, Malawi. Descriptive statistic, linear regression, the Chi-square test, and Pearson’s correlation statistics were used for data analysis. Results: A total of 580 questionnaires were involved. The mean knowledge, attitude, and practice (KAP) scores were 10 (SD = ±3, range: 3–19), 16 (SD = ±4, range: 5–25), and 2 (SD = ±1, range: 0–5), respectively. Lack of money and resources (39%) was the biggest challenge for people who practice prevention measures. Among the participants, the radio (70%) and friends/family (56%) were the main sources of information. A higher economic status was associated with better KAP. Conclusions: A low level of KAP was detected among the population. The people faced challenges regarding a lack of necessary preventive resources and formal information channels. The situation was worse considering vulnerable population who had low economic status. Further all-round health education is urgently needed along with providing adequate health supplies and ensuring proper information management.

During a pandemic, the responsibility of care is rightly shifted from the individual patient to safeguard the health of the large community. The coronavirus pandemic has reshaped the healthcare landscape, placing a strain on all healthcare workers, especially women in healthcare. During the ongoing COVID-19 Pandemic, the threatening pressure on the healthcare system has forced governments and healthcare systems to formulate complex policies to decide how to allocate limited resources. Women also make up one-third of the majority of frontline healthcare professionals around the world, making them vital to tackle this public health crisis. Many women also combine work-home life, personal relationships, caring for family members, home teaching, parenting, their emotional and physical health, and more during new normal. Women are at the forefront of the response to the Pandemic, as they make up nearly 80% of healthcare workers and more than one-third of the active doctors, putting them at greater risk of infection. At the same time, they are underrepresented in decision-making and leadership in the healthcare sector.

BackgroundWith the unprecedented expansion of COVID-19 in the world since December 2019, Iran’s health system, like other countries, faced various challenges in managing the disease, which led to numerous experiences and lessons learned. This study was conducted to identify these challenges regarding unique political, economic, and cultural issues, which could help other countries with similar situations.MethodsThe present study was performed using a qualitative multi-method approach with a content analysis method. The data were collected through in-depth and semi-structured interviews and focused group discussions with 60 key persons who were selected purposefully, including policymakers, health care workers, and affected people by the disease, and the review of all available national reports between February 21, 2020, and March 22, 2021. The data collection and analysis were done simultaneously.ResultsIdentified critical challenges for the management of COVID-19 in the health system were limited evidence and scientific controversies, poor social prevention and social inequalities, burnout and sustained workload among healthcare workers, improper management of resources and equipment, the lack of a guideline for contact tracing, and patient flow management, and mental health problems in the community.ConclusionsAccording to our results, measures should be taken to conduct a continuous comprehensive risk assessment and develop a national response plan with an emphasis on precise contact tracing, active screening, patient flow, paying attention to the psychological and social dimensions of the disease, and also transparency of social inequalities in the face of risk factors of the COVID-19. Also, the social protection programs should become a vital tool for policymakers and supporting the vulnerable groups using the capacity of the community and international cooperation to develop a vaccine, which is difficult to procure due to the sanctions.

Accelerating MRI scans is one of the principal outstanding problems in the MRI research community. Towards this goal, we hosted the second fastMRI competition targeted towards reconstructing MR images with subsampled k-space data. We provided participants with data from 7,299 clinical brain scans (de-identified via a HIPAA-compliant procedure by NYU Langone Health), holding back the fully-sampled data from 894 of these scans for challenge evaluation purposes. In contrast to the 2019 challenge, we focused our radiologist evaluations on pathological assessment in brain images. We also debuted a new Transfer track that required participants to submit models evaluated on MRI scanners from outside the training set. We received 19 submissions from eight different groups. Results showed one team scoring best in both SSIM scores and qualitative radiologist evaluations. We also performed analysis on alternative metrics to mitigate the effects of background noise and collected feedback from the participants to inform future challenges. Lastly, we identify common failure modes across the submissions, highlighting areas of need for future research in the MRI reconstruction community., Comment: M. J. Muckley and B. Riemenschneider contributed equally to this work. This updates to version accepted in IEEE Transactions on Medical Imaging. It includes a rewrite of Section II.E as well as minor changes and corrections

Segmentation of abdominal organs has been a comprehensive, yet unresolved, research field for many years. In the last decade, intensive developments in deep learning (DL) introduced new state-of-the-art segmentation systems. Despite outperforming the overall accuracy of existing systems, the effects of DL model properties and parameters on the performance are hard to interpret. This makes comparative analysis a necessary tool towards interpretable studies and systems. Moreover, the performance of DL for emerging learning approaches such as cross-modality and multi-modal semantic segmentation tasks has been rarely discussed. In order to expand the knowledge on these topics, the CHAOS – Combined (CT-MR) Healthy Abdominal Organ Segmentation challenge was organized in conjunction with the IEEE International Symposium on Biomedical Imaging (ISBI), 2019, in Venice, Italy. Abdominal organ segmentation from routine acquisitions plays an important role in several clinical applications, such as pre-surgical planning or morphological and volumetric follow-ups for various diseases. These applications require a certain level of performance on a diverse set of metrics such as maximum symmetric surface distance (MSSD) to determine surgical error-margin or overlap errors for tracking size and shape differences. Previous abdomen related challenges are mainly focused on tumor/lesion detection and/or classification with a single modality. Conversely, CHAOS provides both abdominal CT and MR data from healthy subjects for single and multiple abdominal organ segmentation. Five different but complementary tasks were designed to analyze the capabilities of participating approaches from multiple perspectives. The results were investigated thoroughly, compared with manual annotations and interactive methods. The analysis shows that the performance of DL models for single modality (CT / MR) can show reliable volumetric analysis performance (DICE: 0.98 ± 0.00 / 0.95 ± 0.01), but the best MSSD performance remains limited (21.89 ± 13.94 / 20.85 ± 10.63 mm). The performances of participating models decrease dramatically for cross-modality tasks both for the liver (DICE: 0.88 ± 0.15 MSSD: 36.33 ± 21.97 mm). Despite contrary examples on different applications, multi-tasking DL models designed to segment all organs are observed to perform worse compared to organ-specific ones (performance drop around 5%). Nevertheless, some of the successful models show better performance with their multi-organ versions. We conclude that the exploration of those pros and cons in both single vs multi-organ and cross-modality segmentations is poised to have an impact on further research for developing effective algorithms that would support real-world clinical applications. Finally, having more than 1500 participants and receiving more than 550 submissions, another important contribution of this study is the analysis on shortcomings of challenge organizations such as the effects of multiple submissions and peeking phenomenon. © 2020 Elsevier B.V., 116E133, BIDEB-2214 College of Environmental Science and Forestry, State University of New York, ESF: 1059B191701102, BIDEB-2219, ZS/2016/08/80646 Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK, The organizers would like to thank Ivana Isgum and Tom Vercauteren in the challenge committee of ISBI 2019 for their guidance and support. We express our gratitude to supporting organizations of the grand-challenge.org platform. We thank Esranur Kazaz, Umut Baran Ekinci, Ece K?se, Fabian Isensee, David V?lgyes, and Javier Coronel for their contributions. Last but not least, our special thanks go to Ludmila I. Kuncheva for her valuable contributions. This work is supported by Scientific and Technological Research Council of Turkey (TUBITAK) ARDEB-EEEAG under grant number 116E133 and TUBITAK BIDEB-2214 International Doctoral Research Fellowship Programme. The work of P. Ernst, S. Chatterjee, O. Speck and, A. N?rnberger was conducted within the context of the International Graduate School MEMoRIAL at OvGU Magdeburg, Germany, supported by ESF (project no. ZS/2016/08/80646). The work of S. Aslan within the context of Ca? Foscari University of Venice is supported by under TUBITAK BIDEB-2219 grant no 1059B191701102., This work is supported by Scientific and Technological Research Council of Turkey (TUBITAK) ARDEB-EEEAG under grant number 116E133 and TUBITAK BIDEB-2214 International Doctoral Research Fellowship Programme. The work of P. Ernst, S. Chatterjee, O. Speck and, A. Nürnberger was conducted within the context of the International Graduate School MEMoRIAL at OvGU Magdeburg, Germany, supported by ESF (project no. ZS/2016/08/80646). The work of S. Aslan within the context of Ca’ Foscari University of Venice is supported by under TUBITAK BIDEB-2219 grant no 1059B191701102.

BackgroundThe COVID-19 outbreak has affected the lives of millions of people by causing a dramatic impact on many health care systems and the global economy. This devastating pandemic has brought together communities across the globe to work on this issue in an unprecedented manner. ObjectiveThis case study describes the steps and methods employed in the conduction of a remote online health hackathon centered on challenges posed by the COVID-19 pandemic. It aims to deliver a clear implementation road map for other organizations to follow. MethodsThis 4-day hackathon was conducted in April 2020, based on six COVID-19–related challenges defined by frontline clinicians and researchers from various disciplines. An online survey was structured to assess: (1) individual experience satisfaction, (2) level of interprofessional skills exchange, (3) maturity of the projects realized, and (4) overall quality of the event. At the end of the event, participants were invited to take part in an online survey with 17 (+5 optional) items, including multiple-choice and open-ended questions that assessed their experience regarding the remote nature of the event and their individual project, interprofessional skills exchange, and their confidence in working on a digital health project before and after the hackathon. Mentors, who guided the participants through the event, also provided feedback to the organizers through an online survey. ResultsA total of 48 participants and 52 mentors based in 8 different countries participated and developed 14 projects. A total of 75 mentorship video sessions were held. Participants reported increased confidence in starting a digital health venture or a research project after successfully participating in the hackathon, and stated that they were likely to continue working on their projects. Of the participants who provided feedback, 60% (n=18) would not have started their project without this particular hackathon and indicated that the hackathon encouraged and enabled them to progress faster, for example, by building interdisciplinary teams, gaining new insights and feedback provided by their mentors, and creating a functional prototype. ConclusionsThis study provides insights into how online hackathons can contribute to solving the challenges and effects of a pandemic in several regions of the world. The online format fosters team diversity, increases cross-regional collaboration, and can be executed much faster and at lower costs compared to in-person events. Results on preparation, organization, and evaluation of this online hackathon are useful for other institutions and initiatives that are willing to introduce similar event formats in the fight against COVID-19.

Background and objectives Return to work (RTW) or work resumption after a work absence due to psychosocial or medical reasons benefits the well-being of a person, including transgender people, and is nowadays a major research domain. The objective is to examine, through an occupational lens, the literature reporting objective RTW outcomes and experiences in transgender people to (a) synthesize what is known about return to work (full-time, part-time, or self-employed) and (b) describe which gaps persist. Methods & sample Several databases and the gray literature were explored systematically. Studies between November 1, 2006 and March 1, 2021 revealing RTW quantitative and qualitative data of adult transgender people were eligible. This review was registered on PROSPERO (CRD42019128395) on April 30, 2019. Results Among the 14,592 articles initially identified, 97 fulfilled the inclusion criteria which resulted in 20 being analyzed. Objective RTW outcomes, such as number of RTW attempts, time to RTW or number of sick days, were lacking; thus, other relevant work outcomes were reported. Compared to the general population, lower employment rates and more economic distress were observed, with trans women in particular saying that their work situation had deteriorated. Research on positive RTW experiences was highlighted by the importance of disclosure, the support from especially managers and coworkers who acted as mediators, personal coping, and a transition plan along with work accommodations. Negative work experiences, such as demotion, lay-offs, and discrimination were often prominent together with a lack of knowledge of trans issues among all stakeholders, including occupational health professionals. Conclusion & recommendations Few studies have explored employment characteristics and experiences of transgender people (TP). RTW is a dynamic process along with transition in itself, which should be tailored through supportive policies, education, a transition plan and work accommodations with the help of external experts. Future studies should include more occupational information and report RTW outcomes to enhance our knowledge about the guidance of TP and to make way for interventional studies.

Accurate detection and quantification of unruptured intracranial aneurysms (UIAs) is important for rupture risk assessment and to allow an informed treatment decision to be made. Currently, 2D manual measures used to assess UIAs on Time-of-Flight magnetic resonance angiographies (TOF-MRAs) lack 3D information and there is substantial inter-observer variability for both aneurysm detection and assessment of aneurysm size and growth. 3D measures could be helpful to improve aneurysm detection and quantification but are time-consuming and would therefore benefit from a reliable automatic UIA detection and segmentation method. The Aneurysm Detection and segMentation (ADAM) challenge was organised in which methods for automatic UIA detection and segmentation were developed and submitted to be evaluated on a diverse clinical TOF-MRA dataset. A training set (113 cases with a total of 129 UIAs) was released, each case including a TOF-MRA, a structural MR image (T1, T2 or FLAIR), annotation of any present UIA(s) and the centre voxel of the UIA(s). A test set of 141 cases (with 153 UIAs) was used for evaluation. Two tasks were proposed: (1) detection and (2) segmentation of UIAs on TOF-MRAs. Teams developed and submitted containerised methods to be evaluated on the test set. Task 1 was evaluated using metrics of sensitivity and false positive count. Task 2 was evaluated using dice similarity coefficient, modified hausdorff distance (95 th percentile) and volumetric similarity. For each task, a ranking was made based on the average of the metrics. In total, eleven teams participated in task 1 and nine of those teams participated in task 2. Task 1 was won by a method specifically designed for the detection task (i.e. not participating in task 2). Based on segmentation metrics, the top two methods for task 2 performed statistically significantly better than all other methods. The detection performance of the top-ranking methods was comparable to visual inspection for larger aneurysms. Segmentation performance of the top ranking method, after selection of true UIAs, was similar to interobserver performance. The ADAM challenge remains open for future submissions and improved submissions, with a live leaderboard to provide benchmarking for method developments at https://adam.isi.uu.nl/.

This paper aims to provide a perspective on data sharing practices in the context of the COVID-19 pandemic. The scientific community has made several important inroads in the fight against COVID-19, and there are over 2500 clinical trials registered globally. Within the context of the rapidly changing pandemic, we are seeing a large number of trials conducted without results being made available. It is likely that a plethora of trials have stopped early, not for statistical reasons but due to lack of feasibility. Trials stopped early for feasibility are, by definition, statistically underpowered and thereby prone to inconclusive findings. Statistical power is not necessarily linear with the total sample size, and even small reductions in patient numbers or events can have a substantial impact on the research outcomes. Given the profusion of clinical trials investigating identical or similar treatments across different geographical and clinical contexts, one must also consider that the likelihood of a substantial number of false-positive and false-negative trials, emerging with the increasing overall number of trials, adds to public perceptions of uncertainty. This issue is complicated further by the evolving nature of the pandemic, wherein baseline assumptions on control group risk factors used to develop sample size calculations are far more challenging than those in the case of well-documented diseases. The standard answer to these challenges during nonpandemic settings is to assess each trial for statistical power and risk-of-bias and then pool the reported aggregated results using meta-analytic approaches. This solution simply will not suffice for COVID-19. Even with random-effects meta-analysis models, it will be difficult to adjust for the heterogeneity of different trials with aggregated reported data alone, especially given the absence of common data standards and outcome measures. To date, several groups have proposed structures and partnerships for data sharing. As COVID-19 has forced reconsideration of policies, processes, and interests, this is the time to advance scientific cooperation and shift the clinical research enterprise toward a data-sharing culture to maximize our response in the service of public health.

Aim This study aimed to determine the electronic health (e-health) literacy level of high school students and its relationship with their health-promoting behaviours. Methods This was a cross-sectional study conducted between April and May 2018. The study sample consisted of 409 students, who were aged between 14 and 19 years old, in three high schools located in the city centre of Denizli. Multiple regression analyses were performed to examine the predictive variables for six dimensions of health-promoting behaviours. Results In this study, the mean (SD) e-health literacy score of 27.89 (6.19) was slightly above moderate level. e-Health literacy was found to significantly predict all six dimensions of health-promoting behaviours positively, that is, e-health literacy was determined to predict the dimensions of nutritional behaviours (beta = 0.64, P < 0.001), life appreciation (beta = 0.55, P < 0.001), social support (beta = 0.72, P < 0.001), exercise (beta = 0.36, P < 0.001), stress management (beta = -0.22, P < 0.001) and health responsibility (beta = 0.68, P < 0.001). Conclusion With e-health literacy significantly predictive of health-promoting behaviours, nurses are recommended to consider the e-health literacy levels of adolescents in the health-promoting programs they design.

Maintenance of positive psychological conditioning can be a key factor in eliciting high human performance. In particular, perception of error forms a causal relationship with challenges regarding task performance. Therefore, this study aimed to investigate the mediation effect of expectancy value in the relationship between the perception of error and challenge using the Phantom Model through quantitative research. This study analyzed the causal relationship between perception of error, expectancy value, and challenge in 423 young Taekwondo athletes. Frequency analysis, confirmatory factor analysis, correlation analysis, and structural equation modeling were performed on the collected data using Jamovi 1.0.1 and AMOS 23.0 statistical programs to verify the hypothesis. The challenge demonstrated a significant difference in relation to the perception of error. These results demonstrated that the perception of error not only directly affected one’s challenge but also explained the increased challenge by mediating expectations for success and subjective values. Hence, the positive perception of error increased the athletes’ expectancy value and challenge.

The coronavirus disease 2019 (COVID-19) pandemic has triggered the implementation of public health measures globally. The health department of local governments has played a critical role in confronting COVID-19. In Japan, public health centers (PHCs) are focal points for COVID-19 response. Understanding the response to COVID-19 in local areas is critical to ensure adequate preparation for future emergencies. Therefore, the purpose of this study is to clarify how the COVID-19 operations by PHCs in Japan were managed and facilitated at the beginning of the infection spread, and their future challenges. We designed a case study that included two PHCs with a population of approximately 400,000 in Japan. Semi-structured focus group interviews with public health nurses from these two PHCs were conducted in September and October 2020. The data were analyzed using chronological time-series analysis. The switch to crisis response was encouraged by the business continuity plan. Their operations for the prevention of COVID-19 in the community were facilitated by the existing network. Further, strengthening the knowledge and skill regarding infectious disease control and management skills during infectious disease-related health emergencies were recommended. It is important to ensure that the environment facilitates emergency response and that people-and-community-centered health promotion activities are conducted, during an emergency situation, with more innovative action and leadership.

BACKGROUND፡ Traditional medicine is a complete system, including diagnostic methods, etiology and treatment based on interpersonal differences. Owing to a lack of investigations in the field of Iranian traditional medicine as well as its many present challenges, certain studies in this area can prove quite practical in identifying and solving ongoing challenges. This study investigates the challenges of the health system in Iranian traditional medicine in the context of control levers.METHODS: The study was qualitative content analysis. A framework analysis, "Control Knob Approach", was considered appropriate to promote apprehension of challenges of health systems in Iranian traditional medicine. Data were collected by purposeful sampling through in-depth and semi-structured individual interviews with 35 experts of Iranian traditional medicine. Directed content analysis was used to analyze the data, which extracted the initial codes after performing the recorded interviews on paper and immersing them in the data analysis.RESULTS: Upon analysis of data by Iranian medicine experts, five main categories including financing, payment system, regulations, behavior and organization were defined alongside 13 subcategories.CONCLUSION: According to current challenges and the tendency of society to receive traditional medicine services, as well as the long history of traditional medicine in Iran, fair access to traditional medicine services should be provided. This access must be through the production of indigenous knowledge and the formulation of regulatory and educational policies and guidelines and the empowerment of relevant, healthy, effective, evidencebased and cost-effective forces.

Cuttlefish (Sepia officinalis) haemocytes are potential sources of antimicrobial peptides (AMPs). To study the immune response to Vibrio splendidus and identify new AMPs, an original approach was developed based on a differential transcriptomic study and an in-depth in silico analysis using multiple tools. Two de novo transcriptomes were retrieved from cuttlefish haemocytes following challenge by V. splendidus or not. A first analysis of the annotated transcripts revealed the presence of Toll/NF-&kappa, B pathway members, including newly identified factors such as So-TLR-h, So-IKK-h and So-Rel/NF-&kappa, B-h. Out of the eight Toll/NF-&kappa, B pathway members, seven were found up-regulated following V. splendidus challenge. Besides, immune factors involved in the immune response were also identified and up-regulated. However, no AMP was identified based on annotation or conserved pattern searches. We therefore performed an in-depth in silico analysis of unannotated transcripts based on differential expression and sequence characteristics, using several tools available like PepTraq, a homemade software program. Finally, five AMP candidates were synthesized. Among them, NF19, AV19 and GK28 displayed antibacterial activity against Gram-negative bacteria. Each peptide had a different spectrum of activity, notably against Vibrio species. GK28&mdash, the most active peptide&mdash, was not haemolytic, whereas NF19 and AV19 were haemolytic at concentrations between 50 and 100 &micro, M, 5 to 10 times higher than their minimum inhibitory concentration.

Background The aim of this study was to present challenges of implementing the accreditation model in university and military hospitals in Iran. Methods In this qualitative study, purposive sampling was used to select hospital managers and implementers of the model working in 3 hospitals affiliated to Kerman University of Medical Sciences and in 3 military hospitals in Kerman, Iran. A total of 39 participants were interviewed, and semi-structured questionnaires and thematic analysis were used for data collection and analysis, respectively. Results In this study, 5 major codes and 17 subcodes were identified: (1) perspectives on accreditation model with 5 subcodes: a difficult and time-consuming model, less attention to the patient, accreditation as a way of money acquisition, not being cost-effective, and accreditation means incorrect documentation; (2) absence of appropriate executive policy, with 3 subcodes: lack of financial funds and personnel, disregarding local conditions in implementation and evaluation, and absence of the principle of unity of command; (3) training problems of the accreditation model, with 2 subcodes: absence of proper training and incoordination of training and evaluation; (4) human resources problems, with 3 subcodes: no profit for nonphysician personnel, heavy workload of the personnel, and physicians’ nonparticipation; (5) evaluation problems, with 4 subcodes: no precise and comprehensive evaluation, inconformity of authorities’ perspectives on evaluation, considerable change in evaluation criteria, and excessive reliance on certificates. Conclusions This study provided useful data on the challenges of implementing hospitals’ accreditation, which can be used by health policymakers to revise and modify accreditation procedures in Iran and other countries with similar conditions. The accreditation model is comprehensive and has been implemented to improve the quality of services and patients’ safety. The basic philosophy of hospital accreditation did not fully comply with the underlying conditions of the hospitals. The hospital staff considered accreditation as the ultimate goal rather than a means for achieving quality of service. The Ministry of Health and Medical Education performed accreditation hastily for all Iranian hospitals, while the hospitals were not prepared and equipped to implement the accreditation model.