A study from 2011 to 2016 found that transgenic corn can be less damaged by the western corn rootworm through crop rotation. The research suggests using multiple transgenic corn varieties as a strategy for reducing resistance.
Anomalous geomagnetic activity detected in South Atlantic Ocean, potentially hindering satellites due to increased solar particles. Volcanic rocks on Saint Helena island reveal variation in magnetic field directions higher than expected at the latitude.
Bird species at mid- to high latitudes have changed their breeding season durations over the last four decades. Climate change has influenced this shift, with some species contracting their breeding periods, typically breeding earlier and having shorter seasons.
Researchers reconstructed Yellow River's middle reach runoff from 1492 to 2013 CE, finding lowest natural runoff during drought 1926-1932 CE. Human activity since 1980s decreased precipitation, increased observed runoff variability.
A study of dust from southeastern Iran reveals frequent plumes from the Arabian Peninsula and North Africa correlate with rapid southward shifts of westerly winds. This suggests North American ice sheets exerted a stronger influence on West Asian climate during North Atlantic cooling events.
Flexible on-skin electronics made from pencil traces on paper can record various biomedical signals such as temperature, heart rate, and glucose levels. The technology has the potential to enable transdermal drug delivery and provides a cost-effective solution for monitoring vital signs in low-resource medical settings.
Researchers analyzed ancient cat remains to determine the diet and ecology of early European cats. The study found that while Near Eastern cats may have accompanied farmers to Europe, they did not yet rely on humans for food.
Research using satellite observations and air mass trajectory modeling reveals that aerosols can extend cloud lifetime and brightness in the stratus-to-cumulus transition zone. This can lead to reduced planetary warming by reflecting more solar radiation back into space.
A recent study using ancient DNA, archaeological artifacts, and written records confirms the existence of state-enforced resettlement in 15th century southern Peru. The research reveals that nonlocal people were forcibly relocated to support the economy and quell threats to authority, transforming the Andean sociopolitical landscape.
Fine roots in peatlands respond rapidly to warming, increasing plant nutrient and water uptake. Soils drying likely drive this increase in fine-root growth, potentially accelerating ecosystem carbon cycling.
A 1.4-million-year-old bone handaxe from Konso, Ethiopia, showcases deliberate shaping and cutting activities of early Homo species. The discovery expands the known technological repertoire of Acheulean tool production, highlighting advanced flaking techniques used on bone.
A species of crab, Sesarma reticulatum, is reshaping the landscape of marshlands in the southeastern US. The crab's burrowing and grazing activities lead to erosion of creek heads, accelerating marsh drainage and altering ecosystem dynamics.
Andean condors flap their wings for only 1.3% of the total recorded flight time, with most time spent gliding and soaring. Flapping is most frequent during takeoffs and in early morning, when thermal updrafts form.
Life expectancy in the US varies significantly across census tracts, with socioeconomic and demographic factors playing a major role. The study identified strong associations between age, income, and race/ethnicity with life expectancy at local levels.
Researchers found that biliverdin-binding serpins (BBSs) are responsible for the blue-green coloration of frogs, which helps with camouflage. BBSs alter the spectral absorbance of biliverdin and fine-tune the frog's reflectance spectra.
A study of 90 participants found that watching a magician perform a card trick resulted in unconscious decisions influenced by verbal and nonverbal primes. The results suggest that embedding priming within speech and gestures can shape decision-making processes.
Researchers identified an enhanced immune response to the H5N1 influenza virus in a two-dose vaccination trial. The findings suggest that this approach could lead to the development of a universal flu vaccine targeting multiple strains.
A study examines how sea-level rise and subsidence affect river avulsions on deltas, finding that frequent avulsions occur when rates of these processes match sediment supply. Engineered avulsions may help mitigate climate change effects, but thresholds exist where sediment supply cannot keep up with rising sea levels.
Scientists create geometrical drawing method and software to design fan-like structures based on earwig wing folding. The method was used to recreate a Paleozoic earwig's wing folding pattern, shedding light on evolutionary pathways.
A new method uses phased ultrasound to levitate and manipulate objects in living bodies, including solid glass spheres. Researchers believe this technology could be used to guide the clearance of kidney stones or manipulate an ingestible camera.
Researchers developed a deep learning method that enhances global climate models' ability to predict wind velocity and solar irradiance data, leading to more accurate renewable energy prospects. The approach results in high-resolution modeling under various climate scenarios.
A study analyzed 664 news articles about suicide posted on a social network between 2018 and 2019. The findings suggest that adherence to suicide reporting guidelines may benefit individual health as well as reader engagement, with US-based publications being less likely to adhere to the guidelines.
Brown bears increasingly live among human settlements due to habitat loss, leading to conflict and high mortality rates. The study found that connected wilderness areas and nocturnal behaviors are crucial for coexistence between humans and bears.
Researchers found that climate change positively impacts yellow-bellied marmot survival during short, wet summers and negatively affects it during harsh winters. This study suggests that certain species may benefit in one season while facing unfavorable conditions in another due to climate change.
In cluttered environments, bats use lowest broadcast frequencies to detect nearby objects and ignore distant echoes. By ignoring long-delay echoes elicited by initial broadcasts, bats can accurately match echoes with corresponding broadcasts.
Children living in homes with private wells were more likely to have elevated blood lead levels than those with city water. Researchers found that African American neighborhoods lacking access to municipal water service faced compounded risks.
A study recreated 600 years of South American hydroclimate records, revealing an increase in prolonged droughts and rainfall events since the 1960s. The researchers attribute these changes to oscillations between El Niño and La Niú events, as well as wind patterns at middle southern latitudes.
Researchers discovered that 85.8% of lake water samples were supersaturated with nitrogen gas, suggesting a lack of balance between nitrogen inputs and fixation. The findings highlight the need for terrestrial nitrogen sources to mitigate nitrogen loss in the lakes.
Researchers identified over 1,100 genetic variants associated with colony-wide aggression levels in response to simulated attacks. A chromosomal region containing genes involved in brain development was found to be strongly linked to the evolution of gentler Africanized honey bees.
Researchers date Shuram excursion to 574-567.3 million years ago, suggesting global synchronicity and decoupling of complex life from biogeochemical events. The study challenges traditional views on the coevolution of Ediacaran life and environment.
Researchers report a small fossil reptile named Kongonaphon kely, related to dinosaurs and pterosaurs, which suggests that these giant animals originated from extremely small ancestors. The analysis of body size evolution and fossil wear indicates a diet of insects.
A study analyzed biogeographic distributions of 52,318 marine fossils and found the latitudinal diversity gradient flattened rapidly during the Permian-Triassic mass extinction due to intense global warming and reduced ocean oxygen levels. The curve gradually returned to resemble modern biodiversity patterns after around 5 million years.
Researchers developed an approach to wirelessly power implantable devices via a skin-worn light-emitting patch, which transfers photons to a photovoltaic device integrated with the implant. The method was successfully tested in mice, demonstrating its efficacy.
A study in ferrets and children aged 2-6 found that early influenza infections can alter the immune system's response to later strains. This priming effect may impact an individual's susceptibility to other strains.
Nonavian dinosaurs went extinct during the end-Cretaceous mass extinction due to a 10-15% reduction in sunlight caused by an asteroid impact. Simulations suggest that the asteroid impact was the main driver of nonavian dinosaur extinction, while volcanism might have mitigated its effects.
Researchers correlated poisoned red kites with local extinction and declining breeding populations in Spain between 1994-2014. Wildlife poisoning from pesticides and lead ammunition may contribute to species declines across the country.
A recent study suggests that long-distance migratory birds are not declining due to an inability to advance their spring migration timing in response to climate change. Instead, improvements in wind conditions and land-use changes play a major role in shaping bird population sizes.
Researchers analyzed language use and population distribution to find links between ethnolinguistic diversity, urbanization, and armed conflict. The study suggests that policies addressing ethnolinguistic tensions can minimize negative impacts on economic growth.
A new study published in PNAS reveals that low levels of the cytokine IL-38 are associated with increased inflammation in the amygdala of children with autism spectrum disorder. This suggests that targeting IL-38 may represent a promising therapeutic strategy for treating autism.
The study found that female neutrophils have enhanced proinflammatory genes and responses to inflammatory stimuli compared to male neutrophils. Sex hormones may drive these differences, with males exhibiting increased mitochondrial metabolism in their neutrophils.
A new method uses conductive polymer spray ionization mass spectrometry and machine learning to detect changes in metabolites in saliva samples from 373 volunteers. The diagnostic accuracy of the method is reported at 86.7%, suggesting a potential point-of-care test for oral squamous cell carcinoma.
Researchers studied ocean water properties beneath Ross Ice Shelf, revealing four distinct water column regions with varying temperature and salinity structures. The findings suggest the presence of enhanced diffusion, potentially modifying cavity circulation, which is tidally modulated.
Multiple transpolar auroral arcs are formed by plasma flow shears and electrical currents along the Earth's magnetic field. The study reveals insight into coupling processes in the Earth's magnetotail under a northward interplanetary magnetic field.
Researchers isolated 179 swine influenza viruses from pigs in China, grouped into six genotypes, and found one (G4 EA H1N1) exhibiting features characteristic of the 2009 pandemic lineage. The virus showed high infectivity and transmissibility in ferrets, raising concerns about its potential for pandemic spread in humans.
Researchers found that fish eggs can survive gut passage in ducks, with 0.2% of eggs intact after 24 hours. This process may play a key role in the dispersal of invasive fish species, such as Prussian carp, across wide geographic areas.
Researchers found that a digital media literacy intervention increased discernment between mainstream and false news in the US and India. However, the benefits were short-lived, highlighting the need for consistent reinforcement of lessons from the intervention.
Researchers found that human participants consistently biased their movements toward a perceived stronger odor source, even when unable to report nostril detection. The study suggests that humans navigate with stereo olfaction, similar to the binocular and binaural senses that enable 3D perception.
Researchers found that female mice mated with sterile male mice experienced a growth-reproduction trade-off, resulting in weight gain and increased reproductive output in late life. However, this also led to a reduced lifespan compared to those housed with other females.
A theoretical model suggests that slowing Atlantic Meridional Overturning Circulation leads to reduced northward nutrient transport, suppressing Subarctic Atlantic Ocean biological productivity. This finding may improve marine biogeochemistry projections for the next century.
The study reveals that medieval glass production in Spain predates Islamic influence by more than 50 years. Glass fragments from the Rabad of Šaqunda date back to the 8th century and show evidence of local lead production using nearby ore deposits.