Showing 20 articles starting at article 2041
< Previous 20 articles Next 20 articles >
Categories: Biology: Molecular, Environmental: General
Published Revolutionizing energy storage: Metal nanoclusters for stable lithium--sulfur batteries
(via sciencedaily.com) Original source Lithium–sulfur batteries (LSBs) offer a higher energy storage potential. However, issues like formation of lithium polysulfides and lithium dendrites lead to capacity loss and raise safety concerns. Now, researchers have developed a graphene separator embedded with platinum-doped gold nanoclusters, which enhance lithium-ion transport and facilitate redox reactions. This breakthrough addresses the long-standing issues associated with LSBs, setting the stage for their commercialization.
Published Flooding that closed Alaska's Dalton Highway also caused widespread ground sinking
(via sciencedaily.com) Original source The massive 2015 flooding of the Sagavanirktok River in northern Alaska had immediate impacts, including closure of the Dalton Highway for several days, but it also contributed to longer-term ground subsidence in the permafrost-rich region.
Published The good and bad uses of biomass for California
(via sciencedaily.com) Original source A new study examines the good and bad uses of biomass and the best pathways to meet California’s goal of reducing carbon dioxide emissions by 85% of 1990 levels by 2045.
Published Killer whales' diet more important than location for pollutant exposure
(via sciencedaily.com) Original source Both elegant and fierce, killer whales are some of the oceans' top predators, but even they can be exposed to environmental pollution. Now, in the largest study to date on North Atlantic killer whales, researchers report the levels of legacy and emerging pollutants in 162 individuals' blubber. The animals' diet, rather than location, greatly impacted contaminant levels and potential health risks -- information that's helpful to conservation efforts.
Published 'Ultrashort' PFAS compounds detected in people and their homes, study shows
(via sciencedaily.com) Original source Per- and polyfluoroalkyl substances (PFAS) have become ubiquitous throughout the environment, and increasing evidence has demonstrated their deleterious effects. A group of smaller, fluorinated compounds are becoming replacements for these 'forever chemicals,' though research suggests the smaller versions could also be harmful. Now, a study reports that the levels of these substances in many indoor and human samples are similar to or higher than those of legacy PFAS.
Published Omega-3 discovery moves us closer to 'precision nutrition' for better health
(via sciencedaily.com) Original source Researchers have obtained new insights into how African-American and Hispanic-American people’s genes influence their ability to use Omega-3 and Omega-6 fatty acids for good health. The findings are an important step toward “precision nutrition” – where a diet tailored to exactly what our bodies need can help us live longer, healthier lives.
Published Remains of artificial turf is an important source of pollution of the aquatic environment
(via sciencedaily.com) Original source Every year, around 1,200 and 1,400 artificial turf sports fields are installed in the European Union. These fields are made up of synthetic fibers, mainly plastics, that mimic the appearance of natural grass. Recently, scientists conducted a study that characterizes and quantifies the presence of artificial turf fibers in samples collected from surface waters of the Catalan coast and the Guadalquivir River. The findings indicate that artificial turfs can be an important source of pollution in the aquatic environment, accounting for up to 15% of the plastics larger than 5 mm in length that are found floating in the aquatic environment.
Published Plastic use in agriculture must be reduced, according to new research
(via sciencedaily.com) Original source Plastic use in agriculture must be reduced in order to mitigate pollution and prevent toxic chemicals from leaching into the soil and adversely affecting human health, according to a new study.
Published Warm summers and wet winters yield better wine vintages
(via sciencedaily.com) Original source Wine quality is notorious for varying from year to year, but what makes for a 'good year?' Researchers show that weather plays an important role in determining wine quality. By analyzing 50 years’ worth of wine critic scores from the Bordeaux wine region in relation to that year’s weather, the researchers showed that higher quality wine is made in years with warmer temperatures, higher winter rainfall, and earlier, shorter growing seasons—conditions that climate change is predicted to make more frequent.
Published Epiphytes, amazing plants like moss and bromeliads found in trees, face growing threats
(via sciencedaily.com) Original source Epiphytes, plants such as orchids and mosses that grow in trees, draw nutrients from the air and create refuge for all sorts of other life forms. They are the foundation of forest canopy ecosystems, but they are facing threats from human and natural disturbances.
Published Powering AI could use as much electricity as a small country
(via sciencedaily.com) Original source Artificial intelligence (AI) comes with promises of helping coders code faster, drivers drive safer, and making daily tasks less time-consuming. But a recent study demonstrates that the tool, when adopted widely, could have a large energy footprint, which in the future may exceed the power demands of some countries.
Published Titanium oxide material can remove toxic dyes from wastewater
(via sciencedaily.com) Original source Discharged in large quantities by textile, cosmetic, ink, paper and other manufacturers, dyes carry high-toxicity and can bring potential carcinogens to wastewater. It’s a major concern for wastewater treatment — but researchers may have found a solution, using a tiny nanofilament.
Published Paleoclimatologists use ancient sediment to explore future climate in Africa
(via sciencedaily.com) Original source With global warming apparently here to stay, a team of paleoclimatologists are studying an ancient source to determine future rainfall and drought patterns: fossilized plants that lived on Earth millions of years ago.
Published Modular dam design could accelerate the adoption of renewable energy
(via sciencedaily.com) Original source Scientists have developed a new modular steel buttress dam system designed to resolve energy storage issues hindering the integration of renewable resources into the energy mix. The new modular steel buttress dam system facilitates the rapid construction of paired reservoir systems for grid-scale energy storage and generation using closed-loop pumped storage hydropower, cutting dam construction costs by one-third and reducing construction schedules by half.
Published Ecotoxicity testing of micro- and nano-plastics
(via sciencedaily.com) Original source An international team of researchers has published the first harmonized exposure protocol for ecotoxicity testing of microplastics and nanoplastics.
Published The changing climate creates more noise in the oceans
(via sciencedaily.com) Original source Due to the changing climate, the underwater world is getting ever noisier.
Published Researchers identify largest ever solar storm in ancient 14,300-year-old tree rings
(via sciencedaily.com) Original source An international team of scientists have discovered a huge spike in radiocarbon levels 14,300 years ago by analyzing ancient tree-rings found in the French Alps. The radiocarbon spike was caused by a massive solar storm, the biggest ever identified. A similar solar storm today would be catastrophic for modern technological society – potentially wiping out telecommunications and satellite systems, causing massive electricity grid blackouts, and costing us billions. The academics are warning of the importance of understanding such storms to protect our global communications and energy infrastructure for the future.
Published The Gulf Stream is warming and shifting closer to shore
(via sciencedaily.com) Original source The Gulf Stream is intrinsic to the global climate system, bringing warm waters from the Caribbean up the East Coast of the United States. As it flows along the coast and then across the Atlantic Ocean, this powerful ocean current influences weather patterns and storms, and it carries heat from the tropics to higher latitudes as part of the Atlantic Meridional Overturning Circulation. A new study now documents that over the past 20 years, the Gulf Stream has warmed faster than the global ocean as a whole and has shifted towards the coast. The study relies on over 25,000 temperature and salinity profiles collected between 2001 and 2023.
Published Newfound mechanism suggests drug combination could starve pancreatic cancer
(via sciencedaily.com) Original source A study found that a new combination of treatments safely decreased growth of pancreatic cancer in mice by preventing cancer cells from scavenging for fuel.
Published Epigenetic regulator MOF drives mitochondrial metabolism
(via sciencedaily.com) Original source Researchers have unveiled a new mechanism for regulating mitochondrial function. The findings reveal the critical role played by the enzymatic activity of the lysine acetyltransferase MOF in maintaining mitochondrial integrity and function through acetylation of mitochondrial electron transport chain component COX17. Cells lacking MOF-mediated COX17 acetylation exhibit dramatic mitochondrial defects and impaired ability to produce energy. Underscoring the clinical relevance of these findings, the team also showed that cells from human patients with a developmental disorder caused by mutations in MOF also exhibited respiratory defects that could be ameliorated by interventions such as acetylation-mimetic COX17 or mitochondrially targeted MOF.