Exposure to neonicotinoids like imidacloprid disrupts bee colony growth by reducing worker activity, feeding and larval care. This results in impaired thermoregulation, increased mortality and reduced colony sizes.
The study found that 104 countries have high fertility rates, while 91 countries have low rates, posing challenges for meeting UN goals on deaths from non-communicable diseases and suicide. The global population is projected to continue growing despite declining total fertility rates.
Researchers used mouse models to track the immune cell triggering during anaphylactic shock, revealing a previously unknown mechanism in which dendritic cells mine blood vessels for allergens and rapidly deliver them to mast cells. This finding opens innovative lines of attack against deadly allergic reactions.
Researchers at NYIT are investigating the process of molecular calcification to develop a new therapy for vascular calcification. The study will validate theories on phosphatase enzyme activity and test a compound known as SBI-425 as a potential treatment.
Researchers found that the thymus, a small organ near the heart, maintains its output of T cells during pregnancy, which is essential for protecting against infection while tolerating the fetus. The study's findings may have implications for understanding autoimmune diseases like multiple sclerosis.
Researchers have discovered a history of bleaching on a coral reef in the central Pacific, which has survived extreme heatwaves due to currents that bring cold, nutrient-rich water. The reef's ability to recover after severe bleaching events is crucial for understanding how other reefs may grow back in the future.
Researchers at Empa and ETH Zurich have developed a novel quantum light source by arranging perovskite quantum dots into a three-dimensional superlattice. This enables the coherent collective emission of photons, creating ultrafast and bright superfluorescence.
A new anti-thrombosis drug based on magnetite nanoparticles has been developed by ITMO University researchers. The drug successfully passed preclinical testing, showing a 20 times shorter clot dissolution time and a lower minimum dose required to achieve the therapeutic effect compared to traditional medications.
These start-ups are using chemistry to fight disease, control agricultural pests, and make safer lithium-ion batteries. The selected companies have ignited investor interest with their groundbreaking ideas.
A recent pilot study by kinesiologists at UMass Amherst found that pedaling while working improved insulin responses to a test meal, with lower insulin levels observed when using a pedal desk compared to a standard desk. The study suggests that pedal desks could be a feasible solution for sedentary work environments.
New research reveals that breastmilk and saliva interact to regulate the oral microbiome of newborn babies, boosting innate immunity. The combination releases antibacterial compounds that inhibit the growth of both harmless and harmful microorganisms.
Researchers designed proteins that snap together spontaneously to form long, helical structures, mimicking natural protein filaments. The creation of these self-assembling filaments could lead to the development of new materials, including fibers stronger than spider silk and nano-scale wire circuitry.
Researchers have developed a new method to calculate the behavior of chromium nitride, a magnetic material used in industry and thermoelectric systems. The study found that spin-lattice coupling causes an anomalous shortening of phonon lifetime, leading to poor heat conductivity.
A comprehensive study of ancient American genomes suggests a highly complex peopling of the continent, with rapid and uneven expansion of populations. The analysis identifies new genetic groups and reveals adaptations to high-altitude environments in South America.
University of Missouri researchers have developed a new microscope that allows them to observe individual proteins in an unfrozen sample. This breakthrough enables scientists to predict how cells will behave when new components are introduced, which could lead to the creation of more effective drugs with fewer side effects.
A new study published in the American Journal of Preventive Medicine found that one in five child homicides may be related to intimate partner violence. The research reveals significant discrepancies between reported data and actual cases, highlighting the need for improved reporting and prevention strategies to save children's lives.
Scientists have created a model of the upper chambers of the heart using 3D-engineered human heart tissue, which can serve as a tool for evaluating disease mechanisms and testing new drugs. The tissue is derived from human induced pluripotent stem cells and responds to atrial-selective drugs.
A study published in PLOS Computational Biology suggests that human brain size increased significantly due to cultural factors and information availability. The cumulative cultural brain hypothesis proposes that brains expand to store and manage more information, co-evolving with group size, learning strategies, and life history.
The Mississippi Bight region is expected to expand its low dissolved oxygen zones due to human impacts. Satellite data and field observations suggest the eastern delta region is similarly affected by river discharge.
A study has discovered that only a small fraction of rare, undiagnosed developmental disorders in the British Isles are caused by recessive genes. The researchers found that five percent of patients had inherited disease-causing gene mutations from both parents, far fewer than previously thought.
A team of Saudi Arabian scientists has discovered a way to control dormancy in grapes and other fruiting plants by subjecting them to high-tech plasmas. This method may help extend the cultivation of temperate zone crops to milder climates, mitigating problems caused by global warming.
The 35th World Cultural Council Award Ceremony honored two scholars, Jean-Pierre Changeux and Malik Mâaza, for their exceptional contributions to science and education. The ceremony also recognized nine young researchers from CityU for their outstanding achievements in various fields.
Neuroscientists have identified a brain activity pattern that could predict the onset of schizophrenia. The study found abnormal connections in patients who later developed psychosis, which may help diagnose the disease earlier. Researchers are now exploring early interventions to combat symptoms and prevent psychiatric disorders.
Researchers uncovered genetic adaptations in ancient Andeans, including cardiovascular modifications and a starch-digesting enzyme variant, allowing them to thrive in the harsh environment. The study suggests that these adaptations enabled highlanders to survive European contact with less population decline than lowlanders.
Researchers have developed a new technique that accelerates and simplifies the directed evolution bioengineering method, allowing for rapid mutation and evolution of genes in yeast cells. This breakthrough enables scientists to perform multiple evolutionary cycles continuously, leading to faster discovery of new proteins and enzymes.
Researchers from George Washington University aim to understand the role of brain endoplasmic reticulum stress in the development of non-alcoholic fatty liver disease. The study, funded by $2.4 million from the National Institutes of Health, will examine the link between ER stress and transcription factor activation in NAFLD development.
Researchers found that biological nanopores like alpha-hemolysin and aerolysin can detect sugar chains of different lengths depending on their placement in the pore, not just diameter. Electrical charge and inner pore geometry also play a crucial role in these biosensors
A team of researchers has fully unveiled the sophisticated mechanism of bacterial toxins, including the Tc toxin complex used by the plague bacterium and other germs. The study reveals a molecular gatekeeper that controls the poison's exit, offering new insights for developing innovative therapies to combat bacterial infections.
A new study has identified a common pattern of brain activity linked to feelings of low mood and anxiety, particularly in individuals with a tendency towards depression. The findings could serve as a biomarker for developing new therapies to treat mood disorders.
Dermal fibroblasts lose cell identity with age, altering activity and affecting tissue repair. This loss leads to decreased skin barrier function and increased risk of infections.
A new study reveals that early access to high-prestige networks is key to an artist's success, with quality determined by display venues and art history ties rather than work itself. Researchers found a dense community of European and North American institutions exchanging artworks within their own high-prestige circles.
Women who participate in breast screening have a significantly lower risk of dying from breast cancer within 10 and 20 years after diagnosis. The study found that screening detects cancers at an earlier stage, allowing for more effective treatment and a reduced mortality rate.
Researchers used PSMA PET/CT to detect prostate cancer outside the prostate gland with higher sensitivity and specificity than standard imaging techniques. This improved accuracy enables more precisely targeted treatment, potentially increasing the chances of successful outcomes.
Physicists at Immanuel Kant Baltic Federal University developed a mini transfocator, a variable focus lens for compact and mobile optical systems. The new design offers submicron resolution and is ideal for studying biological samples under extreme conditions.
Researchers at MIT have developed a new system to extend the shelf life of single-use metal-air batteries by introducing an oil barrier that protects the aluminum electrode from corrosion. The design has shown a thousandfold improvement in energy loss, enabling batteries to last up to 24 days without degradation.
A new study reveals that Anopheles mosquitoes, including species found in the US, can carry and transmit Mayaro virus, which causes fever, joint aches, and other symptoms. The researchers tested six mosquito species and found that all four Anopheles species were competent laboratory vectors of the virus.
A New Zealand study suggests that sugary drinks contribute to an obesogenic environment, leading people to make unhealthy food choices. The researchers recommend implementing a sugar tax to encourage industry reformulation and individual responsibility for healthy consumption.
Some physicists argue that spacetime may emerge from processes closer to reality, such as quarks and hadrons. The concept of spacetime has puzzled humanity for millennia, with some theories suggesting it's a dynamic creation while others propose it's an absolute arena for events.
Scientists have reconstructed the monsoon's precipitation history over the past 1 million years using sediment cores from the eastern Indian Ocean. The results show that the monsoon was weaker during peak ice ages and strongest during interglacial warm periods, with fluctuations in the Earth's axis inclination playing a subordinate role.
Researchers have developed a mouse model that closely replicates human diabetic nephropathy, revealing a key role for immune and inflammatory responses in promoting kidney damage. This finding suggests targeting these pathways may be useful for preventing or slowing the development of diabetic nephropathy.
Research by Oregon State University scientists shows that large terrestrial carnivores can lead to improved stream structure and function in Yellowstone National Park. The return of wolves and cougars has resulted in increased willow height, canopy cover, and stream-bank stabilization, indicating a recovering riparian/aquatic ecosystem.
The study found that monarch caterpillars and butterflies have declined by 80 percent since 2005 in North Central Florida, mirroring the decline in Mexico. The researchers blame shrinking native milkweed populations and glyphosate use in agricultural fields for the decline.
A study by researchers at the National Research University Higher School of Economics found that people tend to attribute their happiness to internal factors such as personality traits and control over their lives. However, when they are unhappy, they often blame external factors outside of their control.
The study reveals that nearly half of Utah's bee species dwell within the monument's original boundaries, with over 660 species identified. This hotspot of bee diversity is attributed to the presence of 87% of Utah's flowering plant species within the monument's boundaries.
Research published by the American Psychological Association reveals that African-American job candidates receive lower salaries when evaluators believe they have negotiated too much. Racially biased individuals often hold negative stereotypes about African-American job seekers as less qualified or motivated than white applicants.
Researchers at Linköping University have developed a method to produce graphene with several layers in a controlled process, enabling the conversion of carbon dioxide and water into renewable fuel. The graphene also exhibits superconducting properties when arranged in a special way.
Maternal smoking is associated with a higher risk of strabismus in children, which can lead to visual impairment and emotional problems. A study of 11 relevant articles found that maternal smoking during pregnancy increases the risk by up to 79 percent.
Researchers discovered MiR-584-5p, a tiny molecule, can kill medulloblastoma and sensitizes cancer to chemotherapy and radiation. This could lead to treating the tumor with one-tenth the current required dose.
A novel technique uses 3D analysis to study bone wear patterns, providing controlled experimental protocol for archeological investigations. The study sheds light on the manufacturing and use of early human tools, revealing that duration of use is the largest determinant affecting surface wear.
Researchers at UC are using isotopic analysis to identify the habitats of migratory hawk species. By analyzing the strontium and hydrogen isotopes in feathers, they can determine the geographic origin of individual birds, providing valuable insights for conservation efforts.
Researchers at New Mexico State University have developed an optimal protocol for shipping and handling mosquitoes for population control methods. Tightly packing mosquitoes at a rate of about 240 per cubic centimeter resulted in the highest survival rates.
Researchers have developed a new strategy against HER2-driven lung cancers using tarloxotinib, a potent HER2/EGFR inhibitor that is more active in low-oxygen conditions than existing therapies. This innovative approach has shown significant promise in treating patients with HER2 lung cancer.
Dr. María Laura Gutiérrez, a young researcher from Argentina, has won the PETA International Science Consortium Award for her work on developing non-animal test methods. The award sends her to an annual workshop at the Institute for In Vitro Sciences, where she will learn hands-on laboratory experience using human cells or tissue models.
A study of 40 breastfed and 13 formula-fed infants found that breastfed babies had significantly more frequent stools and liquid stools during the first two months. The researchers are still unsure about the underlying mechanisms behind this phenomenon.
A new database collects results from the antiSMASH tool to ease comparison of thousands of bacterial genomes when it comes to metabolites. The database contains 6,200 full bacterial genomes and allows users to quickly access precomputed results.
Researchers suggest water availability, not carbon dioxide levels, drove the emergence of C4 plants, which supplemented the earlier C3 pathway. The C4 pathway enabled plants to make food with less water loss, gaining a competitive advantage in relatively arid environments.
Researchers at Tohoku University have found new good catalysts using unique Heusler alloys, enabling the replacement of expensive Pd-based catalysts. The discovery also offers insight into the mechanisms of catalysis on alloys, paving the way for further investigation.
Researchers developed a method to release drugs from nanoparticle cages in small areas of the brain, reducing neural activity. The technique uses focused ultrasound to jiggle drug molecules loose and has potential for treating various conditions, including cancer.
Researchers developed an artificial tactile sensor that detects surface information like shapes, patterns, and structures with high accuracy. The sensor uses piezoelectric materials to mimic the properties of human skin, offering advantages over existing sensors, including detection through touch and sliding.
Researchers found that preserving the lives of adult females in the North Atlantic right whale population is crucial for promoting population growth and recovery. Most deaths are attributed to entanglement in fishing gear and collisions with ships, highlighting the need for conservation efforts to protect these animals.