Articles tagged with Thermal Tolerance
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Research found that extreme summer heat can overwhelm honey bees' cooling systems, causing significant colony population declines. Larger colonies with more stable internal temperatures were less affected, highlighting the need for effective management strategies to mitigate impacts of high temperatures and maintain colony stability.
Researchers found that the skin relies on TRPM8 sensor for cold detection, while internal organs primarily use TRPA1 sensor. This difference explains variations in external and internal cold perception, and has implications for understanding thermal homeostasis and pathologies related to cold sensitivity.
Researchers discovered that Clubiona spiders have unique antifreeze proteins that bind to ice crystals, preventing their growth at sub-zero temperatures. This adaptation is crucial for perennial agriculture as it could lead to reduced reliance on insecticides and combatting resistance.
Researchers found that live well temperatures fluctuate drastically during tournaments, causing physiological stress and longer recovery times for largemouth bass. This study highlights the importance of optimizing live well conditions to minimize mortality rates and ensure sustainable fisheries.
Researchers found that some coral reef fish exhibit higher thermal tolerance in the Arabian Gulf's variable thermal environment, but overall biodiversity is lower. This suggests that only certain species can adapt to environmental changes, and highlights the need for further investigation into climate change impacts.
A new study reveals that 75% of heat-related deaths in Mexico occur among people under 35, contrary to the assumption that elderly individuals are more susceptible. Young adults and small children are particularly vulnerable due to factors such as outdoor labor, limited access to air conditioning, and developing immune systems.
Researchers at PolyU have developed a new type of thermally-insulated and breathable soft robotic clothing that can automatically adapt to changing ambient temperatures. This innovative clothing uses soft actuators to trap a layer of air and increase thermal resistance, reducing heat stress and discomfort in high-temperature environments.
A study published in Science of The Total Environment found that Legionella pneumophila bacteria can withstand thermal stress and remain viable but non-culturable. This highlights the limitations of current detection methods and emphasizes the need to consider this subpopulation in assessments.
Researchers assessed swimming performance and survival under stress to evaluate the effects of three compounds on health and lifespan in Caenorhabditis. The study found complex relationships among median lifespan, oxidative stress resistance, thermotolerance, and mobility vigor.
A team from IRB Barcelona identifies Candida orthopsilosis, a hybrid fungus, as a potential pathogen that could infect humans and cause disease. The study suggests that climate change may have facilitated the emergence of this new microorganism, which has already been linked to several outbreaks and fatalities.
Researchers at Tokyo Institute of Technology have developed a new design strategy for creating mechanoresponsive materials with high thermal tolerance. The study identified two key factors that determine the thermal stability of these materials: radical-stabilization energy and Hammett constants.
Prof. Zuankai WANG's innovative structured thermal armour (STA) resolves the Leidenfrost effect above 1,000°C, enabling efficient liquid cooling in extreme temperatures. This breakthrough applies to aero-engines, space-engines, nuclear reactors, and electronics devices, with far-reaching implications for chemistry and beyond.
A new study reveals that Pacific coral reefs have increased their thermal tolerance to higher ocean temperatures, reducing the risk of bleaching. This natural adaptation could help reefs withstand climate change if global carbon emissions are cut down.
Researchers developed AlN diodes and transistors that can function above 300°C, with a record-breaking operation temperature of 827°C. The new devices were fabricated using sapphire substrates and nickel electrodes, which remained stable at high temperatures.
A new study published in the Proceedings of the National Academy of Sciences confirms that the Megalodon shark was warm-blooded, with a body temperature estimated at around 27°C. This discovery provides empirical evidence for the extinct species' internal heat production, shedding light on its biology and ecological role.
Researchers investigate whether genes increasing heat tolerance also reduce cold tolerance in animals. Ostriches, with their extreme temperature variations in the wild, are an ideal model for studying this phenomenon. The study aims to understand how life stages influence adaptation to temperature fluctuations.
A new study reveals that global warming can lead to an exponential increase in heat injury accumulation for ectothermic organisms, with temperatures exceeding their tolerance level resulting in severe injuries. The rate of heat injury doubles for each degree the temperature rises.
Researchers at NTNU studied zebrafish brain activity while increasing temperature, finding that brains completely stopped responding to stimuli but then 'lit up' when temperatures reached extreme levels. Adding oxygen improved thermal tolerance and recovery rate in fish, suggesting a key role for glial cells in regulating oxygen supply.
Concentrated solar power (CSP) plants use wet cooling methods to dissipate waste heat, but this can lead to significant water loss. A new study developed a radiative cooling system with cold storage that reduces water consumption by up to 85% in hot regions.
A recent study led by University of Hawaii student researchers found that exposing rice coral larvae to warmer temperatures did not improve survival once the coral developed into juveniles. Instead, rearing at ambient temperatures maximized early life stage survival.
Researchers have successfully bonded gallium nitride and diamond without intermediate layers using surface-activated bonding. The resulting GaN-on-diamond material demonstrates stability even at extreme temperatures of up to 1,000℃, enabling the development of highly conductive semiconductors for high-power devices.
Researchers have identified different thermal tolerance mechanisms in corals, with some species exhibiting 'resilient' and 'resistant' responses to heat stress. The findings provide a toolbox for protecting coral reefs worldwide and inform conservation prioritization.
Researchers found that zebrafish evolved higher thermal tolerance over six generations, but only at a slow rate of approximately 0.04°C per generation, which may not be enough to keep pace with rising water temperatures.
Cold tolerance is more variable than heat tolerance across plant species and regions, reflecting evolutionary and geographical histories. Temperate plants are particularly vulnerable to climate change.
A new study projects severe reduction in thermal tolerance for Great Barrier Reef corals, leading to increased coral bleaching. The research found that near-future temperature increases may result in loss of protective mechanisms, resulting in dramatic increase in coral bleaching events.
Recent experiments show that corals with a single type of zooxanthellae can have varying thermal tolerance, with some coping well to higher temperatures while others suffer severe bleaching. This finding challenges the previous assumption that corals associating with the same type of zooxanthellae are physiologically similar.
A new study by Stanford University found that cold-water crabs have a greater capacity to adjust their heat-tolerance thresholds than warm-water crabs. This counterintuitive finding suggests that cold-climate creatures may be more resilient to global warming.