Wayfinding in pairs: comparing the planning and navigation performance of dyads and individuals in a real-world environment.

Navigation is essential to life, and it is cognitively complex, drawing on abilities such as prospective and situated planning, spatial memory, location recognition, and real-time decision-making. In many cases, day-to-day navigation is embedded in a social context where cognition and behavior are shaped by others, but the great majority of existing research in spatial cognition has focused on individuals. The two studies we report here contribute to our understanding of social wayfinding, assessing the performance of paired and individual navigators on a real-world wayfinding task in which they were instructed to minimize time and distance traveled. In the first study, we recruited 30 pairs of friends (familiar dyads); in the second, we recruited 30 solo participants (individuals). We compare the two studies to the results of an earlier study of 30 pairs of strangers (unfamiliar dyads). We draw out differences in performance with respect to spatial, social, and cognitive considerations. Of the three conditions, solo participants were least successful in reaching the destination accurately on their initial attempt. Friends traveled more efficiently than either strangers or individuals. Working with a partner also appeared to lend confidence to wayfinders: dyads of either familiarity type were more persistent than individuals in the navigation task, even after encountering challenges or making incorrect attempts. Route selection was additionally impacted by route complexity and unfamiliarity with the study area. Navigators explicitly used ease of remembering as a planning criterion, and the resulting differences in route complexity likely influenced success during enacted navigation.

DynamoVis 1.0: an exploratory data visualization software for mapping movement in relation to internal and external factors.

BACKGROUND: This paper introduces DynamoVis version 1.0, an open-source software developed to design, record and export custom animations and multivariate visualizations from movement data, enabling visual exploration and communication of patterns capturing the associations between animals' movement and its affecting internal and external factors. Proper representation of these dependencies grounded on cartographic principles and intuitive visual forms can facilitate scientific discovery, decision-making, collaborations, and foster understanding of movement. RESULTS: DynamoVis offers a visualization platform that is accessible and easily usable for scientists and general public without a need for prior experience with data visualization or programming. The intuitive design focuses on a simple interface to apply cartographic techniques, giving ecologists of all backgrounds the power to visualize and communicate complex movement patterns. CONCLUSIONS: DynamoVis 1.0 offers a flexible platform to quickly and easily visualize and animate animal tracks to uncover hidden patterns captured in the data, and explore the effects of internal and external factors on their movement path choices and motion capacities. Hence, DynamoVis can be used as a powerful communicative and hypothesis generation tool for scientific discovery and decision-making through visual reasoning. The visual products can be used as a research and pedagogical tool in movement ecology.

Impact of COVID-19 and Shelter in Place on Volume and Type of Traumatic Injuries.

INTRODUCTION: Very little is known about the effects of the novel coronavirus (COVID-19) pandemic and its associated social distancing practices on trauma presentations to the emergency department (ED). This study aims to assess the impact of a city-wide stay at home order on the volume, type, and outcomes of traumatic injuries at urban EDs. METHODS: The study was a retrospective chart review of all patients who presented to the ED of an urban Level I Trauma Center and its urban community affiliate in the time period during the 30 days before the institution of city-wide shelter-in-place (preSIP) order and 60 days after the shelter-in-place (SIP) order and the date-matched time periods in the preceding year. Volume and mechanism of traumatic injuries were compared using paired T-tests. RESULTS: There was a significant decrease in overall ED volume. The volume of certain blunt trauma presentations (motor vehicle collisions) during the first 60 days of SIP compared to the same period from the year prior also significantly decreased. Importantly, the volume of penetrating injuries, including gunshot wounds and stab wounds, did not differ for the preSIP and SIP periods when compared to the prior year. The mortality of traumatic injuries was also unchanged during the SIP comparison period. CONCLUSION: While there were significant decreases in visits to the ED and overall trauma volume, penetrating trauma, including gun violence, and other severe traumatic injuries remain a public health crisis that affects urban communities despite social distancing recommendations enacted during the COVID-19 pandemic.

Assessment of Local Health Worker Attitudes toward International Medical Volunteers in Low- and Middle-income Countries: A Global Survey.

BACKGROUND: International Medical Volunteers (IMVs) positively and negatively impact host countries, and the goals of their trips may not always align with the interests of the hosts in Low- and Middle-Income Countries (LMICs). We sought to better understand local physicians' interest of hosting IMVs and what type of support they desired. METHODS: This study was a convenience sample survey-based needs assessment. The surveys were distributed to local physicians by 28 professional society groups in LMICs. FINDINGS: A total of 102 physicians from 51 countries completed the survey. Despite 61.8% participants having no experience with IMVs, 75% were interested in hosting them. Host physicians most desired clinical education (39%), research collaboration (18%), and Systems Development (11%). The most requested specialties were obstetrics and gynecology (25%) and emergency medicine (11%). Respondents considered public hospitals (62%) to be the most helpful clinical setting in which IMVs could work, and 3 months (47%) as the ideal length of stay.Respondents expressed interest in advertising the specific needs of the host country to potential IMVs (80%). Qualitative analyses suggested hosts wanted more training opportunities, inclusion of all stakeholders, culturally competent volunteers, and aid focused on subspecialty education, health policy, public health, and research. CONCLUSION: Hosts desire more bidirectional clinical education and research capacity building than just direct clinical care. Importantly, cultural competence is key to a successful host partnership, potentially improved through IMV preparation. Finally, respondents want IMVs to ensure that they stay within their scope of practice and training.

Evaluating emergency care capacity in Africa: an iterative, multicountry refinement of the Emergency Care Assessment Tool.

Healthcare facilities in low-income and middle-income countries lack an objective measurement tool to assess emergency care capacity. The African Federation for Emergency Medicine developed the Emergency Care Assessment Tool (ECAT) to fulfil this function. The ECAT assesses the provision of key medical interventions (signal functions) that emergency units (EUs) should be able to perform to adequately treat six common, life-threatening conditions (sentinel conditions). We describe the piloting and refinement of the ECAT, to improve usability and context-appropriateness. We undertook iterative, multisite refinement of the ECAT. After pilot testing at a South African referral hospital, subsequent studies occurred at district, regional and central facilities across four countries representing the major regions of Africa: Cameroon, Uganda, Egypt and Botswana. At each site, the tool was administered to three participants: one senior physician, one senior nurse and one other clinical provider. Feedback informed refinements of the ECAT, and an updated tool was used in the next-studied country. Iteratively implementing refined versions of the tool in various contexts across Africa resulted in a final ECAT that uses signal functions, categorised by sentinel conditions and evaluated against discrete barriers to emergency care service delivery, to assess EUs. It also allowed for refinement of administration and data analysis processes. The ECAT has a total of 71 items. Advanced facilities are expected to perform all 71 signal functions, while intermediate facilities should be able to perform 53. The ECAT is the first tool to provide a standardised method for assessing facility-based emergency care in the African context. It identifies where in the maturation process a hospital or system is and what gaps exist in delivery of care, so that a comprehensive roadmap for development can be established. Although validity and feasibility testing have now occurred, reliability studies must be conducted prior to amplification across the region.

Professional needs of young Emergency Medicine specialists in Africa: Results of a South Africa, Ethiopia, Tanzania, and Ghana survey.

INTRODUCTION: Emergency Medicine (EM) residency programmes are new to Africa and exist in only a handful of countries. There has been no follow up on faculty development needs nor training of these graduates since they completed their programmes. The African Federation for Emergency Medicine (AFEM) aims to explore the needs of recent EM graduates with respect to the need for resources, mentorship, and teaching in order to develop a focused African faculty development intervention. METHODS: As part of the AFEM annual survey, all those who have graduated since 2012 from a Sub-Saharan African EM residency programme were approached. These included Muhimbili University of Health and Allied Sciences (MUHAS) in Tanzania, Addis Ababa University (AAU) in Ethiopia, Komfo Anokye Teaching Hospital (KATH) in Ghana, the University of Cape Town (UCT) in South Africa, the University of Pretoria (UP) in South Africa, the University of Witswatersrand (Wits) in South Africa, and the University of KwaZulu-Natal (UKZN) in South Africa. RESULTS: The 47 respondents rated themselves as most confident medical experts in knowledge, procedural skills, and communication. Overall graduates felt least equipped as scholars and managers, and requested more educational materials. They reported that the best way for AFEM to support them is through emergency care advocacy and support for their advocacy activities and that their most critical development need is for leadership development, including providing training materials. CONCLUSION: Recent graduates report that the best ways for AFEM to help new EM graduates is to continue advocacy programmes and the development of leadership and mentorship programmes. However, there is also a demand from these graduates for educational materials, especially online.

INTRODUCTION: Les programmes d'internat en médecine d'urgence (MU) sont nouveaux en Afrique et n'existent que dans quelques pays. Aucun suivi n'a été constaté sur les besoins en formation des enseignants ni sur la formation de ces diplômés depuis le moment où ils ont achevé leur cursus. La Fédération africaine de médecine d'urgence (AFEM) s'est donné pour objectif d'étudier les besoins des diplômés récents en MU en termes de besoins en ressources, en mentorat et en enseignement dans le but d'élaborer une intervention en matière de formation ciblée des enseignants en Afrique. MÉTHODES: Dans le cadre de l'enquête annuelle de l'AFEM, tous les étudiants issu d'un programme d'internat de MU en Afrique subsaharienne qui ont obtenu un diplôme depuis 2012 ont été contactés. Les établissements incluaient l'Université Muhimbili de la santé et des sciences connexes (MUHAS) en Tanzanie, l'Université d'Addis-Abeba (AAU) en Éthiopie, l'Hôpital universitaire Komfo Anokye (KATH) au Ghana, l'Université du Cap (UCT) en Afrique du Sud, l'Université de Pretoria (UP) en Afrique du Sud, l'Université du Witwatersrand (Wits) en Afrique du Sud et l'Université du KwaZulu-Natal (UKZN) en Afrique du Sud. RÉSULTATS: Les 47 personnes interrogées se sont évaluées comme étant totalement confiantes en tant qu'experts médicaux dans les domaines des connaissances, des compétences procédurales et de la communication. Dans l'ensemble, les diplômés s'estimaient moins bien équipés que les universitaires et les gestionnaires, et ont demandé plus de matériel éducatif. Ils ont signalé que, pour l'AFEM, les meilleures façons de les soutenir étaient par le plaidoyer en matière de soins d'urgence et le soutien à leurs activités de plaidoyer, et que leur besoin en développement le plus essentiel est un développement du leadership, notamment en fournissant du matériel de formation. CONCLUSION: Les diplômés récents signalent que, pour l'AFEM, la meilleure façon d'aider les nouveaux diplômés en MU est la poursuite des programmes de plaidoyer ainsi que du développement des programmes de leadership et de mentorat. Cependant, il existe également une demande de la part de ces diplômés en matière de matériel éducatif, en particulier en ligne.