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During the coronavirus disease 2019 (COVID-19) pandemic, medical oxygen therapy was urgently needed for patients with hypoxaemia. Many low- and middle-income countries lacked the medical devices for oxygen therapy and experience in their use. In addition to providing medical devices for oxygen therapy for countries in need, the World Health Organization (WHO) and partners developed training videos to help local health workers select, use and maintain this equipment. Diverse health professionals, including engineers and clinicians from resource-constrained countries, collaborated in developing draft videos in their local settings. A production team refined these drafts and delivered the training videos through the platform OpenWHO. OpenWHO is WHO's free open-access platform providing courses for health workers and others. The courses, based on WHO's scientific and operational guidance, can be easily adapted, contextualized and translated. The production team refined the drafts into 32 training videos. More than 17 505 health workers participated in the OpenWHO course on COVID-19 respiratory equipment between 28 February 2022 and 30 November 2023. Participants were from 189 countries and 38% (6027/16 047) were from low- and lower-middle-income countries. Involving volunteer biomedical engineers and clinicians from low- and middle-income countries helped provide an appropriate training resource. WHO should continue to develop such training tools and offer them through OpenWHO, especially for emergencies.

Objectives: The changing global landscape of disease and public health crises, such as the current COVID-19 pandemic, call for a new generation of global health leaders. As global health leadership programs evolve, many have incorporated experiential learning and mentoring (ELM) components into their structure. However, there has been incomplete consideration on how ELM activities are deployed, what challenges they face and how programs adapt to meet those challenges. This paper builds on the co-authors’ experiences as trainees, trainers, organizers and evaluators of six global health leadership programs to reflect on lessons learned regarding ELM. We also consider ethics, technology, gender, age and framing that influence how ELM activities are developed and implemented.Findings: Despite the diverse origins and funding of these programs, all six are focused on training participants from low- and middle-income countries drawing on a diversity of professions. Each program uses mixed didactic approaches, practice-based placements, competency and skills-driven curricula, and mentorship via various modalities. Main metrics for success include development of trainee networks, acquisition of skills and formation of relationships; programs that included research training had specific research metrics as well. Common challenges the programs face include ensuring clarity of expectations of all participants and mentors; maintaining connection among trainees; meeting the needs of trainee cohorts with different skill sets and starting points; and ensuring trainee cohorts capture age, gender and other forms of diversity.Conclusions: ELM activities for global health leadership are proving even more critical now as the importance of effective individual leaders in responding to crises becomes evident. Future efforts for ELM in global health leadership should emphasize local adaptation and sustainability. Practice-based learning and established mentoring relationships provide the building blocks for competent leaders to navigate complex dynamics with the flexibility and conscientiousness needed to improve the health of global populations.Key Takeaways* Experiential learning and mentorship activities within global health leadership programs provide the hands-on practice and support that the next generation of global health leaders need to address the health challenges of our times.* Six global health leadership programs with experiential learning and mentorship components are showcased to highlight differences and similarities in their approaches and capture a broad picture of achievements that can help inform future programs.* Emphasis on inter-professional training, mixed-learning approaches and mentorship modalities were common across programs. Both individual capacity building and development of trainees’ professional networks were seen as critical, reflecting the value of inter-personal connections for long-term leadership success.* During program design, future programs should recognize the “frame” within which the program will be incorporated and intentionally address diversity—in all its forms—during recruitment as well as consider North-South ethics, leadership roles, hierarchies and transition plans.

Compassion-focused imagery (CFI) can be an effective emotion-regulation technique but can create threat-focused responses in some individuals. However, these findings have been based on tasks involving receiving compassion from others. This study sought to compare responses CFI involving self-compassion to relaxation and a control task, and to see whether any threat-responses to self-compassion and relaxation decrease with practice. 25 participants with depression/anxiety symptoms and high self-criticism and/or low self-compassion engaged in three tasks (control task, relaxation imagery, and CFI) at three or four separate testing sessions, every three days. Heart-rate variability (HRV) was used to explore group-level differences between tasks. Additionally, we identified how many individuals showed a clinically significant change in HRV in response to compassion (compared to baseline) and how many showed such a change during relaxation (compared to baseline). During session 1, more individuals had a clinically significant increase in HRV in response to CFI (56%) than in response to relaxation (44%), and fewer had a clinically significant decrease in HRV during CFI (16%) than during relaxation (28%). Comparing the group as a whole, no significant differences between tasks were seen. Repeated sessions led to fewer positive responses to CFI, perhaps reflecting habituation/boredom. These preliminary findings suggest that in high self-critics (those most likely to find self-compassion difficult), self-compassionate imagery is no more challenging than standard relaxation tasks. For both compassion and relaxation, some individuals respond positively and others negatively. For those who are not benefiting, practice alone is not sufficient to improve response. Effects may differ for other compassion tasks. Trial number: NCT04647318.

The spatial transfer of flood damage models among regions and countries is a challenging but unavoidable approach for performing flood risk assessments in data- and model-scarce regions. In these cases, similarities and differences between the contexts of application should be considered to obtain reliable damage estimations, and, in some cases, the adaptation of the original model to the new conditions is required. This study exemplifies a replicable procedure for the adaptation to the Belgian context of a multi-variable, synthetic flood damage model for the residential sector originally developed for Italy (INSYDE). The study illustrates necessary amendments in model assumptions, especially regarding default input values for the hazard and building parameters and damage functions describing the modeled damage mechanisms.

Wood is the water conducting tissue of tree stems. Like most angiosperm trees, poplar wood contains water-conducting vessel elements whose functional properties affect water transport and growth rates, as well as susceptibility to embolism and hydraulic failure during water stress and drought. Here we used a unique hybrid poplar pedigree carrying genomically characterized chromosomal insertions and deletions to undertake a systems genomics analysis of vessel traits. We assayed gene expression in wood forming tissues from clonal replicates of genotypes covering dosage quantitative trait loci with insertions and deletions, genotypes with extreme vessel trait phenotypes, and control genotypes. A gene co-expression analysis was used to assign genes to modules, which were then used in integrative analyses to identify modules associated with traits, to identify putative molecular and cellular processes associated with each module, and finally to identify candidate genes using multiple criteria including dosage responsiveness. These analyses identified known processes associated with vessel traits including stress response, abscisic acid and cell wall biosynthesis, and in addition identified previously unexplored processes including cell cycle and protein ubiquitination. We discuss our findings relative to component processes contributing to vessel trait variation including signaling, cell cycle, cell expansion, and cell differentiation.

Using the Indian medicinal plant Tulsi (Holy Basil) as a case study, we have tested to what extent the discrepancy between vernacular and scientific nomenclature can be resolved, whether the presumed chemical diversity underlying the medicinal use of Tulsi has a genetic component, and whether it is possible to detect this genetic component using genetic barcoding markers. Based on four plastidic markers, we can define several haplotypes within Ocimum that are consistent across these markers. Haplotype II is congruent with O. tenuiflorum, while haplotype I extends over several members of the genus and cannot be resolved into genetically separate subclades. The vernacular subdivision of Tulsi into three types (Rama, Krishna, Vana) can only be partially linked with genetic differences-whereby Rama and Krishna Tulsi can be assigned to O. tenuiflorum, while Vana Tulsi belongs to haplotype I. This genetic difference is mirrored by differences in the profiles of secondary compounds. While developmental state and light quality modulate the amplitude to which the chemical profile is expressed, the profile itself seems to be linked with genetic differences. We finally develop an authentication assay that makes use of a characteristic single nucleotide polymorphism in one of the barcoding markers, establishing a differential restriction pattern that can be used to discriminate Vana Tulsi.

Societal Impact Statement Drought plays a conspicuous role in forest mortality, and is expected to become more severe in future climate scenarios. Recent surges in drought‐associated forest tree mortality have been documented worldwide. For example, recent droughts in California and Texas killed approximately 129 million and 300 million trees, respectively. Drought has also induced acute pine tree mortality across east‐central China, and across extensive areas in southwest China. Understanding the biological processes that enable trees to modify wood development to mitigate the adverse effects of drought will be crucial for the development of successful strategies for future forest management and conservation. Summary Drought is a recurrent stress to forests, causing periodic forest mortality with enormous economic and environmental costs. Wood is the water‐conducting tissue of tree stems, and trees modify wood development to create anatomical features and hydraulic properties that can mitigate drought stress. This modification of wood development can be seen in tree rings where not only the amount of wood but also the morphology of the water‐conducting cells are modified in response to environmental conditions. In this review, we provide an overview of how trees conduct water, and how trees modify wood development to affect water conduction properties in response to drought. We discuss key needs for new research, and how new knowledge of wood formation can play a role in the conservation of forests under threat by climate change. Drought plays a conspicuous role in forest mortality, and is expected to become more severe in future climate scenarios. Recent surges in drought‐associated forest tree mortality have been documented worldwide. For example, recent droughts in California and Texas killed approximately 129 million and 300 million trees, respectively. Drought has also induced acute pine tree mortality across east‐central China, and across extensive areas in southwest China. Understanding the biological processes that enable trees to modify wood development to mitigate the adverse effects of drought will be crucial for the development of successful strategies for future forest management and conservation.

Abstract The barriers and facilitators of conducting knowledge translation (KT) activities are well-established but less is known about the institutional forces that drive these barriers, particularly in low resource settings. Understanding organizational readiness has been used to assess and address such barriers but the employment of readiness assessments has largely been done in high-income countries. We conducted a qualitative study to describe the institutional needs and barriers in KT specific to academic institutions in low- and middle-income countries. We conducted a review of the grey and published literature to identify country health priorities and established barriers and facilitators for KT. Key-informant interviews (KII) were conducted to elicit perceptions of institutional readiness to conduct KT, including experiences with KT, and views on motivation and capacity building. Participants included representatives from academic institutions and Ministries of Health in six countries (Bangladesh, Democratic Republic of the Congo, Ethiopia, India, Indonesia, Nigeria). We conducted 18 KIIs, 11 with members of academic institutions and 7 with policymakers. KIIs were analysed using a deductive and inductive coding approach. Our findings support many well-documented barriers including lack of time, skills and institutional support to conduct KT. Three additional institutional drivers emerged around soft skills and the complexity of the policy process, alignment of incentives and institutional missions, and the role of networks. Participants reflected on often-lacking soft-skills needed by researchers to engage policy makers. Continuous engagement was viewed as a challenge given competing demands for time (both researchers and policy makers) and lack of institutional incentives to conduct KT. Strong networks, both within the institution and between institutions, were described as important for conducting KT but difficult to establish and maintain. Attention to the cross-cutting themes representing barriers and facilitators for both individuals and institutions can inform the development of capacity building strategies that meet readiness needs.