Articles tagged with Temperature
Researchers at Vienna University of Technology have developed a new alloy, pyrochlore magnet, that exhibits nearly zero thermal expansion over an extremely large temperature range. This breakthrough is due to the material's heterogeneous composition, which balances out the usual thermal expansion effect.
A study published in Biology Letters found that insects and mammals coped well with a cold wave, but some species may struggle if temperatures continue to drop. Insects were more sensitive to cold than expected, while mammals reduced their physical activity to conserve energy.
A cohort study from JAMA Network Open reveals an association between temperature exposure and increased psychiatric symptoms among adolescents in the Netherlands and Spain. The findings suggest a possible link between climate change and mental health, warranting further research across diverse climates.
Researchers used EEG to map brain activity in response to hot and cold temperatures, finding that both invoke similar activity patterns in overlapping brain regions. The study could lead to more objective methods for evaluating thermal comfort and reducing health risks due to ambiguous subjective evaluations.
Researchers at Pohang University of Science & Technology have developed a technology that uses microwaves to produce clean hydrogen in minutes, overcoming limitations of existing methods. By leveraging microwave energy, the team achieved significant breakthroughs in reducing production temperatures and time.
Researchers at Osaka Metropolitan University have found key indicators for assessing chemical activity and temperature of active bubbles generated by ultrasonic waves. The study provides new insights into the relationship between bubble temperature and chemical activity, enabling more precise control of chemical reactions.
A new smart window technology combines liquid crystals with nanoporous microparticles and a patterned vanadium dioxide layer to simultaneously control visible light and infrared radiation. The device offers fast, efficient heat and visibility management, marking a significant step forward in energy-efficient building design.
A new study reveals that extreme global warming during the Late Cretaceous Period drove a split between Northern and Southern Hemisphere lamprey families. The findings suggest that tropical temperatures were too hot for larval lampreys, leading to their dispersal into temperate regions.
The National University of Singapore's HRPC has been designated as the GHHIN Southeast Asia Hub, aiming to mitigate extreme heat risks through research, policy, and partnerships. The hub will focus on addressing unique regional challenges such as high humidity, urbanization, and socioeconomic disparities.
Scientists studied ancient whitebark pine forest on Beartooth Plateau, finding the tree line was 600 feet higher during a moderate climate period. The discovery sheds light on how dynamic ecosystems respond to temperature warming and offers insights into future changes for alpine environments.
The study analyzes 40 years of climate data to identify trends in six metrics impacting apple growth, including extreme heat and cold days. The top three largest apple producing counties in the US are among the most impacted, with Yakima County facing significant challenges.
Researchers from Texas A&M University have introduced a novel thermodynamic concept called the 'centotectic,' which investigates the stability of liquids in extreme conditions. The study provides critical information for determining the habitability of icy moons like Europa, with potential implications for planetary exploration efforts.
A study published in JAMA found that cold-related deaths increased by over 100% in the US between 1999 and 2022, with factors such as homelessness, social isolation, and substance use playing a role. The authors suggest that further research is needed to understand the underlying drivers of this trend.
Worsening heat waves exacerbate symptoms of neurodegenerative diseases like Parkinson's and dementia due to impaired sweating and blood flow. Doctors can take proactive steps by regularly screening for social isolation, providing resources, and utilizing telemedicine to monitor high-risk patients.
A UCF researcher is developing a thermochemical energy storage system to reserve solar energy for future use and contribute to the global transition to clean energy. The system uses chemical reactions to absorb or release heat, making it an advantageous way to store energy at high temperatures.
A study by Politecnico di Milano reveals districts most at risk of cardiovascular emergencies during heat waves in Milan. The research found that 23% of the city's population in 18 vulnerable districts face a 22% increased risk, while 20 low-vulnerability districts show no significant increase.
A University of Cambridge-led study found that urban trees can lower pedestrian-level air temperature by up to 12°C. However, the study also revealed that the introduction of trees can have varying cooling effects in different climates and tree species traits.
Southwest Research Institute (SwRI) has successfully tested a novel fire mitigation method designed to safely store damaged electric vehicles and batteries. The customized test evaluated the effectiveness of an enclosure's watertight seal, providing valuable data on its performance.
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 have developed a liquid moisture adsorbent that can efficiently harvest water from the air at near ambient temperatures. The technology, which uses random copolymers of polyethylene glycol and polypropylene glycol, has the potential to provide clean drinking water in arid regions and during disasters.
Researchers demonstrate transverse thermoelectric conversion in WSi2 for the first time, using mixed-dimensional Fermi surfaces to enable TTE effect. The study paves the way for developing new sensors and efficient thermoelectric materials.
A new study provides the first worldwide map of high-risk regions experiencing accelerating extreme heat, surpassing climate model simulations. The most hard-hit areas include central China, Japan, and northwestern Europe, where sequences of heat waves led to thousands of deaths in 2022 and 2023.
A recent study identifies 'heatwave hotspots' across the globe, with extreme temperatures breaking records and causing devastating effects. The phenomenon is not limited to specific regions, but its causes are still unclear, highlighting the complexity of climate change.
A new study from Yale University finds that urban green spaces provide less cooling relief during the day due to increased humidity, but offer significant nighttime benefits. The research suggests that city designers should consider integrating other cooling strategies to optimize green space benefits.
Researchers found that exposure to temperatures of 100°F (38°C) or higher may triple atrial fibrillation episodes in people with implanted defibrillators. The study emphasizes the importance of preventing heat-induced stress and taking precautions to stay cool and hydrated, particularly for vulnerable populations.
Scientists from the University of East Anglia have discovered a 50-metre-thick 'intrusion' of warm water under the Ross Ice Shelf, which has increased heat transport into the cavity by 45% over the last four decades. This finding suggests that climate change will likely lead to further melting and ice loss.
New studies reveal significant increases in Atlantic hurricane seasons and derecho events, while also highlighting the dangers of turbulence near thunderstorms and extreme heat stress. Climate models predict a rise in precipitation extremes across US cities, particularly during winter and spring.
Researchers at Brown University identified key growth cycle phases and molecular mechanisms that make some tomato varieties more heat tolerant. The discovery could inform a strategy to protect the food supply in the face of climate instability.
Researchers at Pohang University of Science & Technology (POSTECH) developed a smart insect screen-inspired film that regulates solar heat and lowers interior temperatures. The breakthrough, published in Advanced Functional Materials, achieves both transparency and radiative cooling performance.
A new study provides a tool for urban planners to set science-based city-wide greening goals, estimating that cities can reduce land surface temperatures by up to 0.23°C with increased tree canopy cover. The research found that the cooling efficiency of urban trees increases at larger scales, but at a slower rate.
Upgrading home insulation can lower medical bills and extend healthy lives by reducing blood pressure and CVD risk. Simulations showed that upgrading or retrofitting insulation is cost-effective for many homeowners, with significant health benefits justifying the costs.
Researchers developed a new index combining human comfort and social vulnerability with heat island mitigation strategies. Trees were found to provide the best relief from heat in vulnerable areas, while cool roofs and green roofs were preferred in less vulnerable neighborhoods.
A research team from Hokkaido University has developed a flexible multimodal wearable sensor patch that can detect arrhythmia, coughs, and falls using edge computing on a smartphone. The sensor patch generates large amounts of data that must be processed to be understood.
A new study by the Barcelona Institute for Global Health found that more than half of European heat-related deaths in summer 2022 were related to human-induced climate change. The research showed a higher number of heat-related deaths attributed to climate change among women and people aged 80 and over.
The Lancet's Countdown report reveals record-breaking human costs of climate change, including heat-related deaths increasing by 167% globally in 2023. The report calls for trillions of dollars spent on fossil fuels to be redirected towards protecting people's health and lives.
A recent review suggests that thermal imaging technology can help control temperatures before and after harvesting fruit and vegetables. This technology can gauge temperature without contact using infrared radiation and flag drastic temperature spikes, helping to extend shelf life and reduce food waste.
A recent study suggests that enhanced Arctic sea-ice melting during the Last Interglacial period led to significant cooling in northern Europe. The researchers used sediment cores and geochemical tracers to reconstruct past ocean conditions, highlighting the importance of feedback mechanisms in the climate system.
Scientists have confirmed that temperature differences at the ocean surface aid in carbon absorption, with the ocean absorbing about 7% more CO₂ each year than previously thought. This discovery highlights the importance of understanding these subtle mechanisms for refining climate models and predictions.
The international project will analyze temperature-sensitive proteins in animals adapted to different thermal environments to understand how they perceive temperature changes. The study aims to uncover the molecular mechanisms underlying cold perception in animals, enabling them to initiate physiological responses crucial for survival.
A new study by MIT researchers shows that climate change will significantly impact outdoor activities in the US, with Florida and other Southeastern states experiencing major drops in
Researchers developed a novel approach to regulate temperature based on gold structure concentration, improving spin wave transfer efficiency. This innovation has promising potential for future applications using spin waves and addresses the persistent issue of heat generation in electronic devices.
Older adults exposed to extreme indoor heat showed small reductions in end-exposure core temperature and heart rate when using electric fans. However, these changes were of questionable clinical importance and did not exceed previous suggestions for significance.
Scientists have developed a method to control heat transfer in graphite crystals, enabling efficient thermal management in electronic components. The discovery uses concepts from fluid dynamics to manipulate phonons, or quasiparticles that propagate through solid-state crystals.
A WSU-led study found that older adults tend to experience more discomfort in high heat, but it doesn't affect their mood as much as younger adults. Emotional responses to heat are highly individualized and moderated by age.
The risk of medical leave in Spain on days of extreme heat decreased from 19% to 13% between 1989 and 2019, according to a study by the Barcelona Institute for Global Health. Workers in agriculture and hospitality sectors remain most vulnerable to heat-related injuries.
A new study found that extreme heat increases mortality risk for people experiencing homelessness, particularly in hot-climate US counties like Las Vegas and Los Angeles. Heat exposure is estimated to be 10-100 times greater among unhoused individuals than in the general population.
A study by MIT researchers reveals that households in the US South and Southwest are struggling with energy costs, particularly air conditioning needs, as temperatures rise. The current federal program, LIHEAP, does not fully match these trends, with southern states receiving relatively less funding.
Researchers have developed a natural fabric that reflects sunlight and allows heat to escape, while blocking the sun's rays and lowering temperature. The fabric leverages radiative cooling, with three layers designed to optimize cooling, promising relief to city dwellers experiencing warmer temperatures.
New research from Binghamton University reveals that Mexican jumping bean larvae respond differently to various lighting conditions, with red light stimulating the most vigorous jumps. However, damage to their 'bean' hosts hinders their ability to jump away from stressors.
A recent study published in PLOS Climate examines the effectiveness of using land surface temperatures as proxies for surface air temperatures in subtropical regions. The findings reveal seasonal variations in the relationship between LST and SAT, underscoring the complexity of using LST data in subtropical, wet regions.
Researchers developed a heat-adjusting material inspired by squid skin, allowing for user-adjusted warmth and breathability. The fabric is breathable, washable, and can be integrated into flexible clothing, making it suitable for cold weather applications.
A new study reveals that extreme heat significantly alters how people go about their daily lives, reducing outdoor activities and shifting transportation choices. Vulnerable groups, such as low-income individuals without access to cars, face the biggest challenges in coping with extreme heat.
A new study analyzing US data from 1993 to 2005 found that extreme heat disproportionately affects racial minorities, with a higher excess death rate for Non-Hispanic Blacks compared to whites. The study's findings highlight the need for adaptation measures to shield vulnerable populations from growing temperature dangers.
Tree-ring data reveal that periodic shifts in strong winds high above the Earth's surface have driven opposite climates in different parts of Europe for the past 700 years. This research provides critical data to improve climate models, comparing past patterns to current trends and societal impacts.
A new experimental technique directly measures heating in spintronic devices, allowing researchers to compare thermal effects to electromagnetic interactions. The study finds that heating has a significant impact on antiferromagnetic materials used in spintronics, but the effect depends on the physics responsible.
Extreme temperature-related deaths in the contiguous US are expected to rise significantly due to climate change, disproportionately affecting non-Hispanic Black and Hispanic adults. The study highlights the need for population health mitigation strategies to address this growing public health concern.
Researchers found that fever temperatures increase helper T cell metabolism, proliferation and inflammatory activity, while causing mitochondrial stress, DNA damage and cell death in a specific subset of Th1 cells. These findings may explain how chronic inflammation contributes to cancer development and suggest a fundamental way cells ...
A new study reveals that Earth's surface temperature has varied more greatly over the past 485 million years than previously thought. The study, co-led by the Smithsonian and University of Arizona, confirms that carbon dioxide is strongly correlated with global temperatures across geological time.
A new study suggests that urban heating and cooling systems will significantly impact future energy demand due to climate change, with smaller-scale city-level waste heat contributing to local microclimates. The research emphasizes the need for comprehensive climate impact assessment and science-based policymaking to address this issue.
Researchers at HUN-REN Centre for Ecological Research found that specific climate periods can shift by several months or even six months within a year, affecting species distribution. This shift poses significant challenges for distribution models, potentially leading to extinction or migration of species.