Globe-LFMC 2.0, an enhanced and updated dataset for live fuel moisture content research.

Globe-LFMC 2.0, an updated version of Globe-LFMC, is a comprehensive dataset of over 280,000 Live Fuel Moisture Content (LFMC) measurements. These measurements were gathered through field campaigns conducted in 15 countries spanning 47 years. In contrast to its prior version, Globe-LFMC 2.0 incorporates over 120,000 additional data entries, introduces more than 800 new sampling sites, and comprises LFMC values obtained from samples collected until the calendar year 2023. Each entry within the dataset provides essential information, including date, geographical coordinates, plant species, functional type, and, where available, topographical details. Moreover, the dataset encompasses insights into the sampling and weighing procedures, as well as information about land cover type and meteorological conditions at the time and location of each sampling event. Globe-LFMC 2.0 can facilitate advanced LFMC research, supporting studies on wildfire behaviour, physiological traits, ecological dynamics, and land surface modelling, whether remote sensing-based or otherwise. This dataset represents a valuable resource for researchers exploring the diverse LFMC aspects, contributing to the broader field of environmental and ecological research.

Burnout in medical students: A longitudinal study in a Portuguese medical school.

Background: Burnout is highly prevalent among medical students. This study aimed to assess burnout levels over the course of a semester and identify variables that might explain burnout's variance over time. Method: This longitudinal study involved medical students from a Portuguese school. Participants completed the Maslach Burnout Inventory and Mental Health Inventory-5, along with questions related to social support, help-seeking behaviours, academic performance, mental health and lifestyle assessment at the beginning (first phase), middle (second phase) and end (third phase) of the first semester of 2018-2019 academic year. Results: A total of 108 participants provided responses in all phases (paired sample). The prevalence of burnout in the first phase was 28.2%, which increased to 34% in the second and 39.5% in the third. To explore factors contributing to burnout levels, we used the 332 responses obtained in the third phase (non-paired sample). Higher burnout levels were associated with poor academic performance, mental health stigma, consumption of tranquillisers and living away from home. Conversely, they were negatively associated with social support and a healthy lifestyle. Conclusions: The study reveals a high prevalence of burnout among medical students, with burnout levels increasing throughout the semester. These levels are influenced by modifiable variables.

Wildfires, complexity, and highly optimized tolerance.

Recent, large fires in the western United States have rekindled debates about fire management and the role of natural fire regimes in the resilience of terrestrial ecosystems. This real-world experience parallels debates involving abstract models of forest fires, a central metaphor in complex systems theory. Both real and modeled fire-prone landscapes exhibit roughly power law statistics in fire size versus frequency. Here, we examine historical fire catalogs and a detailed fire simulation model; both are in agreement with a highly optimized tolerance model. Highly optimized tolerance suggests robustness tradeoffs underlie resilience in different fire-prone ecosystems. Understanding these mechanisms may provide new insights into the structure of ecological systems and be key in evaluating fire management strategies and sensitivities to climate change.

Avaliação das associações anestésicas: atropina/cetamina-s/xilazina e acepromazina/cetamina-s/midazolam em felinos domésticos (Felis domestica) / The evaluation of the anesthetic associations: atropine/s-ketamine/xylazine and acepromazine/ketamine-s/midazolam in domestic felines (Felis domestica)

Com o objetivo de avaliar as associações anestésicas atropina/cetamina-s/xilazina e acepromazina/cetamina-s/midazolam em felinos domésticos (Felis catus), foram utilizados 16 felinos, machos, hígidos cedidos por proprietários atendidos no Hospital Veterinário da Escola Superior de Agricultura de Mossoró. Os animais foram distribuidos aleatoriamente em dois grupos de oito animais, onde foi utilizado um tratamento anestésico distinto para cada grupo. O grupo I, foi pré-tratado com sulfato de atropina (0,044mg/kg) por via subcutânea, e decorridos 15 minutos, recebeu xilazina (1,0 mg/ kg) associada a cetamina-s (10mg/kg) por via intramuscular. No grupo II, foi utilizada acepromazina (0,2 mg/kg) por via intramuscular e após 15 minutos, administrou-se a associação de midazolam (0,5mg/ kg) e cetamina-s (10 mg/kg) por via intramuscular. Foram avaliadas as variáveis fisiológicas: freqüência cardíaca, freqüência respiratória, saturação de oxigênio e tempo de preenchimento capilar. A aferição das variáveis foi realizada a cada 10 minutos, durante 90 minutos. Também foi avaliado o período de latência, período de analgesia e de recuperação. A média do período de latência após a administração de atropina/ cetamina-s/xilazina foi de 3,68min, enquanto na acepromazina/cetamina-s/midazolam foi de 3,95 min. No grupo I, a média do tempo de analgesia foi de 45,94min, e no grupo II foi obtida analgesia em apenas um animal. A média do tempo de recuperação no grupo I foi de 134, 08min e no grupo lI, 78,28min. Concluiu-se que a associação atropina/ cetamina-s/xilazina, produz uma anestesia de boa qualidade para pequenos procedimentos cirúrgicos, enquanto que a associação acepromazina/cetamina-s/midazolam deve ser utilizada para pequenos procedimentos ambulatoriais. Ambas associações apresentam propriedades farmacológicas comparáveis com as obtidas com a cetamina racêmica.