Researchers from Stockholm University found that animal sperm evolve rapidly only when fertilization occurs inside females. Sperm size varies dramatically among species, but internal fertilization leads to supersized sperm.
A new study published in Proceedings of the National Academy of Sciences found that plant species vulnerable to climate change may lead to bigger problems than previously thought. The research, led by Amelia Wolf and Erika Zavaleta, suggests that losing biodiversity can have significant impacts on ecosystems, particularly during droughts.
Biologists have identified 71 new 'imprinted' genes in the mouse genome, which tend to be more active in one parental version than the other. The discovery sheds new light on epigenetics and its importance in health and disease.
Researchers developed a new model that addresses gaps in urban climate modeling, providing global multi-model projections of local urban climates. The study finds that cities in high-stakes regions like the Great Lakes and southern Europe are at higher risk for extreme heat events.
A large study of over 1.8 million women has found no link between fertility drugs and an increased risk of breast cancer. The research, published in Fertility and Sterility journal, provides reassurance to women seeking fertility treatments.
Researchers found that textured-surface breast implants stimulate pro-inflammatory T cell responses, which may lead to chronic inflammation and cancer. Smooth-surface implants showed less immune cell activity, suggesting a potential link between rougher surfaces and breast implant-associated large cell lymphoma (BIA-ALCL).
Northwestern University researchers have developed a smarter, more durable and highly functional cement by introducing nanoparticles into ordinary cement. The new material shows improved water transport properties, including pore structure and water penetration resistance, with reported relative decreases of 76% and 78%, respectively.
Researchers found that damaged proximal tubule cells can promote disease progression by showing activity in genes that support survival and programmed cell death. These cells may contribute to the transition from acute to chronic kidney disease, affecting 9.1% of the world's population.
A new study establishes a more tolerable chemotherapy regimen for children with high-risk neuroblastoma, while maintaining its effectiveness. The European Neuroblastoma Study Group's rCOJEC regimen showed significant reductions in side effects compared to the US-based MSKCC-N5 regimen.
Researchers found that playing broadband sounds during the onset of congenital hearing loss preserved auditory processing of time-related sound features. The intervention also prevented hair cells from dying and maintained sound processing function in brainstems, cochleas, and midbrains.
Zach Lerner, a mechanical engineer at Northern Arizona University, has received an NSF CAREER award to develop wearable robotic exoskeletons for long-term gait rehabilitation. The project aims to understand the interplay between disease severity and wearable assistance, with potential to transform treatment of walking disabilities.
Training stroke survivors to walk at a faster speed can help improve the brain function that enables people to walk and perform another task simultaneously. Advanced brain imaging found changes in the brain consistent with adaptations necessary for controlling gait in complex environments, supporting the findings.
Researchers found that up to 40% of lead in airborne particles comes from legacy leaded petrol, highlighting the persistence of contaminants introduced by human activities. Long-term low-level exposure to lead can have detrimental health effects, and measures should be taken to reduce further lead emissions.
Researchers at Newcastle University have successfully created a model of lung cells using induced pluripotent stem cells, which can be used to replicate how COVID-19 infects the airways. The model has shown that it is capable of secreting mucus and being infected by SARS-CoV-2, paving the way for broader studies on viral lung infections.
Researchers are developing a new technique to study microbes in conditions that mimic their native environment, facilitating the growth of difficult microbial species. This technology has potential applications in medicine, biotechnology, and bioremediation, including the controlled delivery of healthy gut bacteria into the body.
Researchers at OIST Graduate University have developed a new method to synthesize crystalline powder necessary for perovskites, resulting in higher quality and stable solar cells. The newly created perovskite-based solar cells achieved conversion efficiencies of over 23% and lifespan of more than 2000 hours.
The NIH ACTIV-4B trial found that not treating certain symptomatic but stable outpatients with anticoagulant or antiplatelet therapy may be the best course of action, suggesting a very low rate of thrombotic complications. This recommendation has immediate implications for prophylactic treatment and management of mild COVID-19 symptoms.
Researchers from University of California - Santa Barbara create model to couple dynamics of landslides and tsunami generation, predicting wave amplitude based on initial column geometry and water depth.
Researchers at UTHealth are investigating pairing patients with PTSD undergoing treatment for peer support and exposure therapy to improve treatment completion rates. The study aims to reduce the high dropout rate of 25-50% by providing a supportive network for patients to overcome triggers and work towards recovery.
A study reveals that hunting pressure affects the behavior of endangered Yellow-breasted capuchin monkeys, causing them to avoid areas with abundant food sources due to increased risk of predation. The research suggests that poachers pose a significant threat, and the risk of predation outweighs the availability of food in their habitat.
Scientists investigate volcanic deposits and flows in the Mojave and Sonoran deserts to better understand pyroclastic surge movement across complex terrain. The research aims to improve knowledge of volcanic hazards and inform hazard assessments.
Opaganib was shown to reduce supplemental oxygen support, improve discharge time and be well-tolerated in patients with COVID-19 pneumonia. The study's findings suggest a potential role of SK2 inhibition in combating the effects of the virus.
A new framework analyzes dishonest end-of-life electronics management and finds that making recycling more profitable is key to preventing fraudulent practices. The researchers suggest targeted subsidies, higher penalties, and blockchain-based supervision as potential solutions.
Measurements of iron spectrum in cosmic rays reveal that hydrogen, carbon, and oxygen nuclei travel through the galaxy similarly, but iron arrives differently. The findings provide a measurement of the galaxy structure and particle propagation through observations of element abundances and energy spectra.
The new method uses polarization analysis to track changes in the spectrum of light on a nanosecond time scale over the entire color spectrum. By correlating polarization with laser color, researchers can measure spectral changes at high speeds, opening up new possibilities for material studies and astronomical observations.
A new engineering strategy introduces photo-controllable profragrance nanoparticles with flash nanoprecipitation technology, allowing for tunable particle size and precise control over fragrance release. This innovation enables the scale-up of profragrance fabrication and has potential for industrial applications.
A study suggests that China will experience an increase in landfalling tropical cyclones by the end of the 21st century, with a projected 16% rise in annual mean frequency and a 10% increase in occurrence frequency. The study used regional climate models to simulate future changes in temperature and precipitation patterns.
Researchers found that high levels of certain blood lipids are associated with a higher risk of developing esophageal cancer in individuals with a family history of the disease. The study suggests considering 'stratified' analysis to better understand the relationship between serum lipids and cancer.
Researchers charted health characteristics among 1,374 people with achondroplasia over 60 years, including growth patterns, surgical outcomes and medical treatments. The study found that nearly 80% of patients had at least one surgical procedure to relieve pain or symptoms, while limb-lengthening surgeries were relatively uncommon.
A recent study published in Scientific Reports found that carefully considered surgical treatment improves the prognosis for elderly brain tumour patients. Almost half of patients who had ended up in institutional care due to a brain tumour were able to return home thanks to surgery.
A global geodatabase of vegetation plots has been published as open access, containing data from 114 countries and all climate zones on Earth. The sPlotOpen database provides a balanced representation of the Earth's vegetation, enabling researchers to study biodiversity and climate change across different regions.
A team of researchers from Singapore and Japan have identified a new genus and species of xanthid crab with strongly asymmetrical male and female reproductive structures. The discovery reveals an evolutionary innovation that is unique among the 7,800 known crab species, allowing these crabs to mate effectively.
Researchers created metamaterials using low-cost inkjet printing with potential implications for telecommunications, GPS, and medical devices. The materials can be electrically tuned to adjust their properties, enabling the design of unconventional mirrors, lenses, and filters.
A German-Japanese research team has deciphered the 3D structure of a metalloprotein that catalyzes RNA editing in all plant cells. The DYW domain's activation is triggered by a zinc atom and a gating domain, providing a sophisticated regulation mechanism for chloroplasts and mitochondria.
A new study from the University of York suggests that Iron Age people kept everyday items like spoons and grinding stones as emotional reminders of deceased loved ones. This practice is replicated in societies across the globe today, revealing the raw emotional power that mundane objects can acquire at certain times and places.
A new study published in Cell journal suggests that COVID-19 antibodies lack the ability to enhance disease in animals. The research used mice and monkeys to test human antibodies, finding that they exert their defensive powers against SARS-CoV-2 infection, not exacerbating it.
A team of researchers has deciphered the mechanisms leading to the concave shape of intestinal crypts and the migration movement of cells towards peaks. The study used a combination of computer modeling and in vitro experiments, revealing that mechanical forces exerted by cells control both processes.
Researchers have developed ultrathin sensors that can monitor plant health without harming them, providing a promising solution for sustainable farming. The sensors use bioimpedance measurements to detect physiological changes in plants, enabling farmers to optimize water, light, and nutrient supply.
A team of researchers at the University of Maryland School of Medicine has identified a new gene, AP1G1, that is associated with neurodevelopmental disorders and intellectual disabilities. The gene plays a crucial role in transporting essential materials within brain cells, and its disruption can lead to significant developmental delays.
Researchers at Nagoya Institute of Technology have created a photocatalyst that efficiently uses visible light from the sun to decompose CO2. The breakthrough uses single-walled carbon nanotubes to improve electron transfer pathways and synthesis processes, enabling large-scale manufacturing.
A study led by the University of Hawaii at Manoa found that US Pacific and Gulf of Mexico coastlines will experience rapid increases in high-tide flooding days, with extreme months also emerging
A study published in JAMA Internal Medicine found a significant decrease in respiratory virus detections during the COVID-19 pandemic. The researchers also observed a decline in antibiotic prescribing rates for respiratory tract infections, suggesting a shift towards more targeted treatment approaches.
Researchers have identified a genetic marker in tumours from patients with high-risk neuroblastoma that can predict poorer prognosis and respond to targeted treatment. This breakthrough may lead to personalized treatment options for children with high-risk disease.
A smartphone-based eye screening and referral system improved access to care for people with eye problems, tripling attendance rates at primary care. The system also increased appropriate hospital services uptake, while reducing unnecessary hospital visits.
Researchers at University of Bristol have developed a method to measure electric field inside semiconductor devices, enabling more efficient power and radio frequency electronics. This breakthrough has the potential to reduce energy loss by up to 10% across the globe and is a step towards a carbon neutral society.
A new analysis reveals that households with recent birthdays are 30% more likely to have a COVID-19 diagnosis in counties with high infection rates. The study suggests that social gatherings like birthday parties may have contributed to infections during the pandemic.
The American Academy of Sleep Medicine's new position statement emphasizes the biological necessity of sleep for health and well-being in children, adolescents, and adults. Insufficient sleep and untreated sleep disorders are linked to increased health risks such as cardiovascular disease, diabetes, and workplace accidents.
Researchers have developed a Ramanome Database to rapidly identify and characterize microalgae, which can convert carbon dioxide into valuable compounds. The database achieves 97% accuracy in identifying species and their metabolic functions, accelerating the mining of microalgal cell factories for carbon-neutral production.
Researchers found that when couples blamed the pandemic for their stress, they were happier in their relationships. This phenomenon helped reduce the negative effects of stress spillover, allowing partners to work together and tackle challenges as a team.
Researchers found that airborne lead in London is attributable to resuspended dust, not current coal burning or seasonally variable sources. Historical contributions of leaded gasoline remain a significant source of environmental lead.
A new study suggests that replacing high-risk police officers with less likely to generate use-of-force complaints would reduce complaints by just 6 percent over a 10-year period. Researchers found that early warning systems and broader accountability measures are more effective in reducing misconduct.
Researchers have developed a new technique, native state mass spectrometry, to identify effective inhibitors against antibiotic-resistant bacteria. This approach analyzes the behavior of metallo-beta-lactamase inhibitors and could lead to the development of novel treatments for resistant infections.
Commensal gut bacteria like Bifidobacteria have been found to produce compounds that inhibit SARS-CoV-2. The researchers screened dominant gut bacteria for activity against the virus and discovered several compounds with potential therapeutic value.
A UNIGE team has identified an RNA helicase regulator in Pseudomonas aeruginosa that significantly reduces its infectious power and virulence. The absence of this protein makes the bacteria almost harmless while remaining alive.
The World Health Organization and UNESCO have created global standards to embed health and wellbeing into the education system, addressing rising mental health problems. The guidelines cover policy, resources, leadership, and community partnerships, aiming to foster a holistic approach to learning and student health.
A Curtin University-led study of ancient bones on Kangaroo Island has provided new insights into the island's past fauna and potential species reintroduction. The research identified 33 species, including extinct ones, and shed light on the impact of European arrival on biodiversity.
Researchers investigated two SARS-CoV-2 variants and found that patients with these variants were less likely to be asymptomatic. Despite no increase in viral load, the variants showed higher transmissibility, leading to increased hospitalization rates.
Research found increased screen time during COVID-19 pandemic correlated with higher anxiety scores and a rise in pandemic-related distress. Young adult students scored higher than non-students in mental health concerns, while no association was found between screen time use and depression.
Patients two months after COVID-19 recovery show significant cognitive disturbances, including memory issues, spatial awareness problems, and executive function impairment. The majority of younger patients under 50 exhibit these symptoms, highlighting the need for adequate support and treatments to alleviate symptoms.
Researchers at HKU have identified 38 authentic Ag+-binding proteins in Staphylococcus aureus, revealing silver's molecular targets and mode of action. The study shows that silver-based antimicrobials can potentiate the efficacy of antibiotics, resensitize MRSA to antibiotics, and slow down antibiotic resistance evolution.