Catalyzing ammonia formation at lower temperatures with ruthenium
Nitrogen is an essential nutrient for plant growth. While about 80% of earth is nitrogen, it is mostly contained in the atmosphere as gas, and hence, inaccessible to plants. To boost plant growth, especially in agricultural settings, therefore, chemi.....»»
A small molecular glue that increases P53 level and suppresses tumor growth in vivo
Molecular glues are typically small chemical molecules that act on the interface between the target protein and the degradation machinery to trigger ternary complex formation. Identification of molecular glues is challenging, and there has been a lac.....»»
From embers to crisis: The expanding threat of wildfires under global warming
Globally, wildfires are on the rise, driven by climate change, which exacerbates droughts and high temperatures. These fires contribute significantly to carbon emissions and particulate matter (PM2.5), with severe consequences for both climate stabil.....»»
The overshoot myth: We can"t keep burning fossil fuels and expect scientists of the future to get us back to 1.5°C
Record breaking fossil fuel production, all-time high greenhouse gas emissions and extreme temperatures. Like the proverbial frog in the heating pan of water, we refuse to respond to the climate and ecological crisis with any sense of urgency. Under.....»»
Ancient civilizations had ways to counter the urban heat island effect—how history"s lessons apply to cities today
As intense heat breaks records around the world, a little-reported fact offers some hope for cooling down cities: Under even the most intense periods of extreme heat, some city blocks never experience heat wave temperatures......»»
Physicists successfully observe Kibble–Zurek scaling in an atomic Fermi superfluid
The Kibble–Zurek (KZ) mechanism is a theoretical framework introduced by physicists Tom Kibble and Wojciech Zurek. This framework essentially describes the formation of topological defects while systems undergo non-equilibrium phase transitions......»»
New computational methodology to predict the complex formation of interesting nanostructures
Researchers from the group of Prof. Carles Bo at the Institute of Chemical Research of Catalonia (ICIQ-CERCA) have described a computational methodology that simulates complex processes involving different chemical species and diverse conditions. The.....»»
Animals with higher body temperatures are more likely to evolve into herbivores, study finds
A University of Arizona study has uncovered a surprising relationship between an animal's body temperature and its likelihood of evolving into an herbivore. The study, published in the journal Global Ecology and Biogeography, offers fresh insights in.....»»
Specialized materials could passively control the internal temperature of space habitats
Areas of space have wildly different temperatures depending on whether they are directly in sunlight or not. For example, temperatures on the moon can range from 121 °C during the lunar "day" (which lasts for two weeks), then drop down to -133 °C a.....»»
Scientists uncover exciton behavior in van der Waals magnets
A research group led by scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory has uncovered details about the formation and behavior of mobile, microscopic, particle-like objects called "excitons" in a class of materials.....»»
The Run of Record-Breaking Heat Has Ended, for Now
Air temperatures in July 2024 were fractionally cooler than in July 2023, probably because of a waning El Niño. But don’t expect things to be much cooler in coming years......»»
During a heat wave, temperatures not the only threat: expert
Spain has just emerged from a 21-day heat wave that engulfed Madrid, Barcelona and Zaragoza, posing a health threat which extends far beyond the actual temperature, according to Julio Diaz, a researcher at Madrid's Carlos III Health Institute......»»
Warming waters and nutrient overload: A dangerous combination threatening our rivers and lakes
Warming water temperatures and increased nutrient levels are putting freshwater ecosystems at serious risk, new research has revealed......»»
"Mercury bomb" threatens millions as Arctic temperatures rise, study warns
The Yukon River flows west across Alaska toward the Bering Sea, eroding Arctic permafrost along its banks and transporting sediment downstream. Within that sediment lurks a toxic stowaway: mercury......»»
Scottish and Irish rocks confirmed as rare record of "snowball Earth"
A rock formation spanning Ireland and Scotland may be the world's most complete record of "snowball Earth," a crucial moment in planetary history when the globe was covered in ice, finds a new study led by UCL (University College London) researchers......»»
An asteroid wiped out the dinosaurs, not a comet, new study finds
Analysis of ruthenium isotopes showed the impactor was a carbonaceous-type asteroid. Enlarge / Artist impression of a large asteroid impacting on Earth, such as the Chicxulub event that caused the end-Cretaceous mass extinction 6.....»»
Tree mortality may lead to carbon tipping point in the Amazon by 2050s
The Amazon rainforest is home to a diverse cast of plants and animals. This vital, verdant landscape also plays a crucial role in managing the effects of climate change by storing significant amounts of carbon and helping regulate temperatures and ra.....»»
Mediterranean Sea temperatures match 2023 records
The temperatures of the Mediterranean Sea in recent days have reached heat records set last summer, the main Spanish maritime research center told AFP Tuesday, with marine heat waves in some places exceeding 30 degrees Celsius......»»
Starvation and adhesion drive formation of keratinocyte patterns in skin, research reveals
Fingerprints are one of the best-recognized examples of pattern formation by epithelial cells. The primary cells in the epithelium are the keratinocytes, and they are known to form patterns at the microscopic and macroscopic levels. While factors aff.....»»
Novel anemometer tracks sound travel for speedier, more precise wind speed calculations on Mars
Mars has a notoriously inhospitable environment, with temperatures that fluctuate dramatically over the course of a Martian day and average minus 80 degrees Fahrenheit. Its surface is mostly covered in red dust, with terrain typified by craters, cany.....»»
Researchers highlight the carbon-saving potential of compact cities
In recent years, the dramatic rise in extreme weather events due to climate change has escalated what was once termed "climate change" into a "climate crisis." With global average surface temperatures reaching unprecedented levels, the urgency to tra.....»»