Scientists have identified a novel chemical defense mechanism in tobacco plants that provides permanent resistance to Empoasca leafhopper pests. The study revealed a new volatile compound called caffeoylputrescine-green-leaf-volatile compound (CPH) responsible for this resistance.
A new study compares outcomes for acute ischemic stroke patients treated at various levels of stroke centers, finding that Comprehensive Stroke Centers (CSC) and Thrombectomy-capable Stroke Centers (TSC) provide better care and improved outcomes. Patients treated at CSC or TSC tend to receive rapid treatment with clot-busting medicatio...
Researchers have discovered two new and unusual species of diatoms that fix nitrogen, a critical process supporting productivity in nutrient-poor open ocean waters. These diatoms harbor symbiotic cyanobacteria that convert dissolved nitrogen gas into ammonia, enabling them to thrive in nutrient-poor conditions.
Research at Rensselaer Polytechnic Institute found that the circadian system influences the immune cells' clearance of Amyloid-Beta 42, a key protein linked to Alzheimer's disease. Boosting daily oscillations could increase clearance and prevent brain damage.
Sea urchin larvae exhibit a cilia-based response and swim backward when exposed to strong irradiation, revealing a subtle yet crucial mechanism in the evolution of light-responsive tissues. This finding provides insights into the diversification of light-response systems and may have implications for understanding human behavior or fee...
A University of Illinois study discovered that cadherin proteins can sense mechanical stress and alter cell communication, promoting tissue growth and tumorigenesis. The findings suggest a potential mechanism for preventing certain types of tissue growth by mutating cadherin molecules.
Scientists at Scripps Research identified a common target on the spike protein of multiple coronaviruses, including SARS-CoV-2, that can be targeted by a broad-spectrum vaccine. The discovery could inform the design of effective vaccines and antibody therapies against future coronavirus pandemics.
A study published in AGU Advances found that water depletion from rivers and lakes accelerates near urban centers due to factors like increased evaporation and groundwater exploitation. Researchers analyzed satellite imagery of the US from 1984 to 2018 and developed a model predicting surface water loss proximity to cities.
A study by New York University researchers found that plants make a trade-off between regeneration and defense responses after injury. The researchers used drugs typically used in neurobiology research to study the plant's responses to injury and found that targeting glutamate receptors can boost regeneration.
Researchers at Drexel University have developed a stable sulfur cathode that functions in a commercially viable carbonate electrolyte, enabling Li-S batteries with three times the capacity of Li-ion batteries and lasting over 4,000 recharges. This breakthrough paves the way for more sustainable battery alternatives.
Researchers developed a new technique using radar altimetry to measure river ice thickness and predict safe travel dates on ice roads and bridges in arctic regions. This method can help sustain the network of ice roads built on frozen lakes and rivers, critical for northern communities' food security.
New research reveals that asteroid Ryugu samples brought back by Hayabusa2 spacecraft exhibit similar properties to the asteroid's larger boulders. The samples' colors, shapes, and structures are consistent with material surrounding each collection site on Ryugu's surface and sub-surface.
The anticholinergic burden scale helps identify patients at risk of cognitive decline from these medications. The editorial highlights the complexity of safely reducing or stopping these medications due to their risks.
Researchers created two new prediction tools for patients with CKD, incorporating factors such as long-term blood sugar, inflammation, and kidney/heart injury. The models improve risk classification for stroke and heart attack within 10 years compared to standard models.
A new study found that only 57% of Georgia pharmacies carry Plan B, while less than 1% carry the more effective ulipristal acetate. Rural pharmacies were less likely to have Plan B, highlighting existing disparities in reproductive health care access.
Researchers have developed a new system called Species Agnostic Nanoparticle Delivery Screening (SANDS) that improves the screening process for drug-delivering nanoparticles. SANDS allows for simultaneous testing of nanoparticles in mouse, primate, and human cells, enabling more accurate predictions of delivery in humans.
Three University of Exeter researchers Dr Jasmine Ono, Dr Luis Yanez Guerra and Dr Jane Usher have been awarded BBSRC Discovery Fellowships for innovative research in biotechnology and biological sciences. They will focus on improving scientific knowledge to develop better treatments for human fungal pathogens and understanding the ori...
A young diplodocid dinosaur with abnormal bony protrusions in its neck bones may have suffered from a fungal respiratory infection similar to aspergillosis. The study provides the first evidence of an avian-style respiratory infection in a non-avian dinosaur.
A new study found that rural counties had 2.4 times more infections per 100,000 people than urban areas during the third wave of COVID-19 in summer 2021, driven primarily by the delta variant. Low-vaccination areas experienced a more intense surge of new cases.
Researchers developed GaN-based CMOS logic circuits that can reduce power consumption in power conversion systems by 20-30%. The technology offers improved thermal management and energy efficiency, making it suitable for high-performance applications like data centers and autonomous driving.
Seventy- to eighty-year-olds who train for better fitness demonstrate better problem-solving skills and reduced cognitive decline. Regular physical activity is linked to increased brain health, including faster reaction times and improved working memory.
Researchers at Uppsala University have designed a molecule that inhibits the replication of coronaviruses, including the new variant, with great potential for developing an antiviral drug. The molecule has been shown to be effective against both old and new variants, offering hope for treatment options.
Researchers found that the primary somatosensory cortex, traditionally thought to be a basic sensory center, plays a deeper role in decision-making and facilitates flexible behavior with experience. The study suggests an expanded role for this brain area in adaptive strategies.
Researchers introduce a genetic mutation that reduces Alzheimer's risk by preventing amyloid plaque formation. The mutation, found in Icelanders, has no known disadvantage and may be used to treat familial and sporadic forms of the disease.
Researchers identified three KCTD proteins that modulate neurotransmitter activity, enabling fine-tuned movement. Their elimination enhances cAMP production and sensitivity to dopamine in neurons.
Researchers assessed the link between primary care physicians per capita and COVID-19 vaccination rates among U.S. counties, finding a positive correlation. The study suggests that areas with more primary care physicians tend to have higher vaccination rates, potentially due to increased access to healthcare services.
A new study suggests that wildfires can lead to increased soil carbon stocks in savannahs and grasslands, potentially offsetting short-term emissions. The research found that fires could store up to 90 million tonnes of carbon per year, but the breakdown rate of charcoal in soils remains uncertain.
A study of over 2,000 participants found that traumatic brain injury (TBI) patients reported an average of 3.5 problematic symptoms after a year, with physical symptoms declining and cognitive symptoms remaining constant. The research highlights the importance of addressing TBI-related symptoms in patients' daily lives.
A new review introduces methods of photonic matrix multiplication, which offers great potential for photonic acceleration in AI applications. The technology has advantages in signal rate, latency, power consumption, and computing density over electrical computing.
A new study by the University of Arizona has identified a brain region and neural circuitry that mediate satiation, making it possible to create treatments with fewer side effects for eating disorders and weight management. The parasubthalamic nucleus plays a key role in regulating feelings of fullness after eating.
A new study reveals that online social network algorithms can distort and amplify biases against minority groups, leading to unequal visibility and ranking. Researchers found that homophily and the proportion of minorities in a network can contribute to this effect.
A UCF-led team has created a self-powered injection jet shunt that uses the heart's energy to alleviate internal pressure caused by Fontan circulation. The device shows promise in reducing mortality rates for babies born with one functioning heart ventricle.
The study analyzes the costs and effectiveness of climate change adaptation measures in agriculture, highlighting integration of different techniques as a key factor. Climate smart agriculture and conservation agriculture can provide benefits in terms of both adaptation and mitigation of climate change.
A study reveals that the roller crimper technique improves agroecological crop performance, reduces environmental impact, and protects biodiversity. The technique creates a layer of plant waste on the crop surface without perturbing the soil.
A new study found that pollutants can be transmitted over many generations in water fleas, persisting long enough to influence the evolutionary process. The effects of low doses of pollutants were detected even after switching to clean water, indicating stable epigenetic marks passed down through generations.
A new UF study found that climate change intensifies the negative effects of invasive plants on longleaf pine trees, making them more vulnerable to drought and wildfires. The experiment showed that trees under stress from both drought and invasive cogongrass were least likely to survive after fire.
Researchers used a COLTRIMS reaction microscope to determine the duration of an electron's release after photon absorption. The study found that the emission time depends on the direction and velocity of the electron, revealing a complex interplay between quantum physics and molecular dynamics.
Researchers discovered that nerves in the intestines regulate gut acidity to maintain a healthy balance of gut bacteria. They used zebrafish with genetic mutations to study the connection between the enteric nervous system and microbial communities.
Pusan National University researchers demonstrate the effectiveness of integrating a radiative cooler with a multi-junction solar cell, achieving a 6°C temperature drop and a 2% increase in open-circuit voltage. This breakthrough could lead to more efficient and eco-friendly solar cells, paving the way for renewable energy sources.
A team of astronomers has discovered a massive cluster of young galaxies forming in the early universe, with many member galaxies already stopped forming stars. The newly found growing galactic metropolis is about 11.8 billion light-years away and consists of at least 38 member galaxies.
A new study published in JAMA Internal Medicine has found that gene variants increased the risk of acute kidney injury and death in African American veterans hospitalized with COVID-19. The study, which analyzed data from over 850,000 diverse veterans, identified APOL1 variants as a key contributor to this increased risk.
Scientists have developed a genetically encoded biosensor called OxLight1, which enables them to study the action and release mechanisms of neuropeptides like orexin in living mice. The researchers found that the level of orexin release correlates with neuronal activity, revealing previously invisible aspects of healthy brain function.
A new material, sodium carbo-hydridoborate, improves the performance of solid-state sodium batteries, making them more sustainable and durable. The ideal pressure to be applied to the battery for efficient operation has also been defined.
A new US-based study published in PLOS Biology found that most people who have had COVID-19 are protected against reinfection for at least six months. The research analyzed data from 4,441 SpaceX employees and estimated an odds ratio of 0.14 to 0.28 for reinfection depending on the time period considered.
Dudney's pioneering work in solid-state battery materials has led to the development of high-performance, long-lasting batteries with improved safety and performance. Her innovations have been licensed by 24 companies and recognized globally as a role-model in energy storage materials research.
A new study found that one dose of ivermectin was just as effective as two doses in reducing scabies prevalence and impetigo cases. The 'screen-and-treat' approach using permethrin cream was also effective, but impractical for large-scale implementation.
Astronomers have detected a new planet orbiting Proxima Centauri, the closest star to our Solar System, with a mass comparable to that of Earth. The newly discovered planet, named Proxima d, orbits its star at just five days, within the habitable zone.
A recent study published in PLOS ONE found that the majority of citizens trust science, with a significant increase in trust since the pandemic began. The study also revealed that educational level is a key factor in shaping trust judgment, and that scientists' intentions and expertise are crucial in maintaining public trust.
Researchers discovered guard cell chloroplasts do not produce ATP through photosynthesis. Instead, they utilize imported cytosolic ATP for starch turnover and stomatal opening, revealing a unique energy source for these critical cellular processes.
Researchers have discovered a potential new diagnostic marker for ulcerative colitis, identifying high levels of antibodies targeted at endothelial protein C receptors in patients with inflammatory bowel disease. The discovery could lead to the development of non-invasive blood tests to diagnose and track the progression of the disease.
A new study found that calorie restriction improves metabolic and immune responses, generating more T cells to fight off infections and improve energy efficiency. This could lead to a potential treatment to reduce age-related inflammation and improve metabolic health.
A new study reveals that early echinoderm body shape evolution outpaced ecological innovation, contradicting long-standing expectations. The researchers found that morphological diversification occurred at a rate of 71% faster than ecological evolution during the Cambrian and Ordovician periods.
The detection of high-frequency gravitational waves would offer insights into the early Universe's phases, inaccessible to electromagnetic wave investigations. Currently, technological challenges limit the sensitivity of proposed projects to six orders of magnitude lower.
A study found that previous COVID-19 infection improves the performance of antibodies and potentially provides longer-term protection, especially in obese individuals. In contrast, vaccination does not enhance antibody quality and may not provide sustained immunity in those who have been previously infected or overweight.
A new study by UTSW researchers found that giving clot-busting drug alteplase to stroke patients on long-term blood thinners is safe and improves recoveries. The study of over 160,000 patients revealed no increased risk of bleeding, but rather better outcomes for those treated with the drug.
Researchers predict LISA will detect new fundamental fields, shedding light on dark matter and the universe's expansion. The space interferometer will observe gravitational waves from extreme mass-ratio inspirals, providing a unique opportunity to probe strong-field gravity.
Researchers found that hemoglobin, an oxygen carrier molecule, acts as a chemosensory signal in lactating mother mice, prompting digging or rearing behavior to protect their offspring. This unique response is mediated by the Vmn2r88 receptor and is controlled by the specific ligand-receptor pair comprising hemoglobin binding to Vmn2r88.
KAUST researchers simulate microgrid cyberattacks to assess impact and develop detection methods. Effective methods identify anomalous conditions associated with attacks, enabling swift isolation of affected subsystems.
Researchers linked El Niño to decreased enslaved Africans transported to the Americas due to drier conditions, indicating a two-year lag. The study highlights the interplay between weather and human conflict, with lessons applicable to modern-day climate change and potential conflicts.
Researchers found that 37% of lions and 22% of leopards in Zambia have wire snare injuries, while 27% of lions have shotgun pellet embeds. The study suggests poaching and land protection threats are significant in protected areas.