Scientists discovered remarkably preserved remains of ancient organisms in Scottish lochs that lived a billion years ago. These fossils show complex algal cells with nucleus, mitochondria, and chloroplasts, indicating early evolution of photosynthesis and sexual reproduction.
A new study by the University of California, San Francisco suggests that treating HIV-infected adults as soon as they are diagnosed can significantly reduce the rate of new HIV infections among men who have sex with men in San Francisco. This approach is expected to cut new infections by almost 60% over five years.
Researchers found that walking for one hour a day improved insulin sensitivity, increased adiponectin levels, and reduced oxidative damage in obese individuals with prediabetes. This exercise regimen may help slow the progression of nonalcoholic fatty liver disease.
Researchers have discovered a new class of ceramic coatings that could offer jet engines special protection against volcanic ash damage. The coatings were tested and found to resist damage caused by ash deposits, with one coating offering sufficient protection against small amounts of ash ingested by the engine over time.
Researchers found that solar activity during the Little Ice Age may have contributed to the period's cooling, suggesting factors other than low sunspot activity played a role. Glacial dust storms are a significant source of iron to the Gulf of Alaska, impacting phytoplankton growth and ecosystems.
Researchers at NC State University have developed a material that can bind and trap radioactive iodide in drinking water, making it safe for human consumption. The material, which combines hemicellulose and chitosan, can also extract heavy metals from water, providing a sustainable solution for desalination.
New research shows older adults are consuming higher levels of carotenoids, flavonoids and other phytonutrients, with up to 80% higher intakes found among those aged 65+, compared to their younger peers. This increase in phytonutrient intake may offer protective health benefits for women, including breast and ovarian cancer prevention.
Researchers found that low doses of penta-BDEs altered gene expression in reproductive organs and thyroid hormones in female rat offspring exposed in utero and via maternal milk. Osteopontin gene expression was significantly increased, which may have long-term implications for human health.
A study comparing US and UK ICU admissions found that UK patients were sicker upon admission, while US patients required more continuing care after discharge. Hospital mortality rates varied between the countries due to differences in healthcare systems and discharge practices.
Stillbirths occur at an alarming rate of 3 million annually worldwide. Families affected often struggle with grief and lack recognition, leading to feelings of isolation. The Lancet's commentary emphasizes the need for increased awareness and support for those experiencing stillbirth.
Researchers found that short-term high-fat diets reduced cardiac tissue damage and improved function in animal models. A sudden switch to a regular diet after the 'splurge' period offered prolonged cardioprotection.
A new research study found that a commonly used strategy to reduce the spread of resistant bacteria in hospital ICUs had no significant effect. The study, which used active surveillance and expanded use of barrier precautions, did identify a large subgroup of patients not previously known to be colonized with MRSA or VRE.
A York University report highlights the need for a greater emphasis on prevention, family reconnection, and rapid re-housing efforts in Canada's approach to youth homelessness. The report cites successful programs in Australia and the UK that have helped young people reconnect with their families or move into independent housing.
A new short Comparative Genomic Hybridisation (CGH) method enables comprehensive analysis of all chromosomes and detection of chromosomal anomalies. The technique, developed by Mariona Rius, has shown an implantation rate of 60%, successfully resulting in a pregnancy for a woman with two chromosomal translocations.
A new study found that areas of the brain affected by Alzheimer's disease may start shrinking up to a decade before dementia is diagnosed. The researchers used MRI scans to measure brain size in people with no memory problems and followed them for years to see who developed the disease.
Research published at University of Rochester Medical Center found that high induction and primary C-section rates in low-risk pregnant women have no impact on newborn health. The study's findings question the increasing trend of interventions at delivery in the US, suggesting that 'more is not always better'.
Researchers found that treating vascular risk factors can help slow memory decline and reduce the risk of developing dementia. Those receiving full treatment were 39% less likely to develop Alzheimer's disease compared to those receiving no treatment.
Researchers at Scripps Research Institute identified a change in calcium influx into specific brain neurons that is fundamental to long-term memory. This increase, known as a memory trace, is observed in normal fruit flies but absent in mutants with impaired long-term memory.
A new vaccine approach using an adjuvant to stimulate the immune system shows promise in a study of Gambian infants, highlighting potential for single-shot protection at birth and reducing immunizations needed. The study's findings could have major wins for global health.
Scientists analyzed over 300 studies to identify promising energy storage technologies, including high-tech batteries and redox flow batteries. These innovations aim to integrate and store renewable energy efficiently, enabling the growth of sustainable power grids.
Two unique types of mirrors, Primary and Secondary EDUs, have arrived at NASA's Goddard Space Flight Center. The mirrors will work together to observe distant galaxies and unexplored planets. The Primary mirror is composed of 18 hexagonal segments, while the Secondary mirror directs light from the Primary mirror to Webb's instruments.
Researchers found that copepod carcasses play a crucial role in understanding oceanic food webs. Non-predatory mortality accounted for over 10% of all copepod deaths, providing insights into the fate of these tiny crustaceans.
A study by Brown University researchers found that children were the victims in more than half of emergency room visits for eye injuries related to aerosol cans. The youngest children, ages 0 to 4, accounted for an estimated 2,830 emergency room visits during the study timeframe.
Researchers at Johns Hopkins Bloomberg School of Public Health developed a non-steroid based strategy to improve lung's innate immune defense against bacterial infection in COPD patients. Sulforaphane, an ingredient present in broccoli, was used to enhance the Nrf2 pathway in the lungs.
Researchers found that alpine marmots increase n-6 polyunsaturated fatty acid concentrations in their cell membranes before hibernation, preparing for low temperatures. This seasonal change is reversed upon hibernation termination and appears to be controlled by an endogenous clock.
MIT researchers develop new communications protocols using motion detection to improve handoffs, throughput and bit rate selection on wireless networks. Experiments show gains of up to 50% in network performance.
Researchers discovered Osedax living on tuna and wahoo bones, contradicting earlier assumptions. The study confirms Osedax as generalists that exploit various vertebrate bones, shedding light on their evolution.
A new study from Rhode Island Hospital researchers shows that obese individuals with social anxiety related only to their weight may experience anxiety as severe as those with social anxiety disorder. The findings suggest that excluding obesity-related social anxiety from SAD diagnosis may hinder identification of the disorder.
Researchers at Queen's University Belfast have pioneered a needle-free test for medicines in premature babies, reducing trauma and improving accuracy. The new approach uses blood spots obtained from heel-pricks, allowing for more precise dosage calculations and better treatment outcomes.
A recent study found that chronic cerebral venous insufficiency (CCSVI) is more prevalent in multiple sclerosis (MS) patients, particularly those with progressive forms of the disease. The research suggests CCSVI may be a consequence of MS progression rather than a cause, warranting further investigation.
Daily walks increase insulin sensitivity, improve liver health marker PUI, and boost hormone adiponectin levels, linked to fat-burning effects. The study suggests exercise as a medicine for managing non-alcoholic fatty liver disease.
Researchers created patient-derived iPSCs, which were then differentiated into neurons to study schizophrenia. The study found that these neurons connected less frequently with each other and had misregulated gene expression profiles, but Loxapine restored connectivity. The findings provide a new model for understanding the disease mec...
A new MRI device guides surgeons during electrode implantation, potentially cutting surgery time in half and making the procedure faster and more comfortable for patients. The device was developed by a team of UCSF neurosurgeons and radiologists to improve deep brain stimulation outcomes for Parkinson's disease patients.
Researchers at Tel Aviv University have developed an algorithm that enables computers to anticipate the future and make more efficient decisions. The algorithm, funded by Google, aims to minimize 'regret' in computer decision-making by analyzing variables and adapting to situations.
Perampanel, a new drug, has shown promise in reducing seizures in people with hard-to-control epilepsy. The study involved 387 participants who took either the 12mg or 8mg dose of perampanel and reported a significant reduction in seizure frequency compared to those taking a placebo.
Hybrid spintronic computer chips are being developed using a combination of inorganic and organic materials. The new technology could lead to computers that require less power and produce less heat, enabling instant on and flexibility. This breakthrough promises significant advances in information processing.
Researchers have found that brain nerve stimulation can accelerate learning in laboratory tests, leading to new understanding of how the brain learns and encodes new skills. The study also showed that large changes in the brain are meaningful and not merely coincidental.
A Loma Linda University study found that vegetarians experience a 36 percent lower prevalence of metabolic syndrome than non-vegetarians. The condition is associated with an increased risk of heart disease, diabetes, and stroke.
The Toronto XVIVO System successfully treated and improved the function of high-risk donor lungs, allowing them to be safely transplanted. This technique could significantly expand the donor organ pool and improve outcomes after transplantation.
A study published in Psychological Science found that people's values and judgments are linked to their motor skills, with right-handers favoring the right side. The research used brain-injured patients and healthy volunteers to investigate how much time it takes for individuals to switch their preferences.
The US Coast Guard has begun trials of the PROTECT system, a computer application developed by USC-engineered that randomizes response vessel schedules to prevent adversaries from exploiting patterns. The system, designed to optimize deterrence effects, is being tested in Boston Harbor with a force of five to ten response boats.
The book highlights the crucial role of policy mechanisms, such as the feed-in tariff, in promoting widespread solar energy deployment. In California, a new law aims to make solar affordable at the municipal level.
A recent study examining dietary cholesterol, egg intake, and heart disease risk found that saturated fat may be a greater contributor to increased blood cholesterol than previously thought. The study also suggests that egg consumption does not significantly increase blood cholesterol levels, contrary to long-held assumptions.
The TET1 enzyme controls gene activity during fetal development, preventing genes from being turned off at critical stages. By modifying methyl groups, TET1 acts as a safeguard to ensure normal cell growth and development.
Researchers have developed a method to recreate schizophrenic brain cells from skin cells, enabling safe and effective studies. This approach offers a step towards personalized medicine for patients with schizophrenia and potentially other diseases.
Methods Navigator is an online tool that enables life scientists to search, access, and apply the right method for their research. With access to over 50,000 articles and 120 commonly used protocols, Methods Navigator simplifies the scientific workflow.
A UCSF study has found a link between chronic brain inflammation and memory decline in older adults. The study, which examined the effects of C-reactive protein on memory, showed that high levels of this protein correlate with poorer verbal recall and smaller medial temporal lobes.
Despite being among the wealthiest nations, high-income countries like the US, UK, and Australia still experience high rates of stillbirths. The causes are complex, but factors such as obesity, advanced maternal age, smoking, and socioeconomic disparities contribute to these statistics.
Researchers found that thinner brain areas associated with Alzheimer's can predict dementia and disease development. The study analyzed MR images from two groups, revealing a threefold increased risk of Alzheimer's among those with the thinnest cortical areas.
A Kansas State University biochemist is using computer models to study the protein p21, which plays a key role in regulating cell division and has connections to cancer and aging. The study provides insights into how structural flexibility influences the function of this intrinsically disordered protein.
The Center for Metamaterials, led by Dr. David Crouse, aims to improve metamaterials research and application in renewable energy and sensors. The center will conduct fundamental research on materials and devices with high commercialization potential.
Researchers at UT Southwestern Medical Center found that Klotho, an anti-aging hormone, suppresses renal fibrosis and cancer growth in mice. This discovery offers a potential new treatment for patients with chronic kidney disease and acute kidney injury.
A new study suggests that Mecp2 is essential for refining synaptic circuits based on sensory experience, leading to the formation of abnormal connections in autism spectrum disorders. This model of Rett syndrome may have implications for other autism-related disorders.
Researchers found that healthy breast cells secrete interleukin 25 to actively kill nearby breast cancer cells without harming normal cells. This discovery suggests IL25 receptor signaling as a new therapeutic target for treating breast cancer.
Researchers found that observing someone's flaw leads to neural activations similar to physical pain, positively correlated with observers' empathic abilities. The study suggests a distinction between forms of empathy, highlighting the role of representation in social emotions.
The spread of non-native zebra and quagga mussels in the Great Lakes has caused significant ecological changes, stripping lakes Michigan and Huron of life-supporting algae. This has resulted in a remarkable transformation and threatens multibillion-dollar U.S. fisheries.
A study by Columbia Business School and Ben-Gurion University of the Negev found that judges' willingness to grant parole can be influenced by time between breaks. After a break, 65% of cases were granted parole, with rates dropping to zero and then rising again. The study bolsters research on psychological biases in experienced judges.
Stillbirths in low-income and middle-income countries are a major concern, with 98% of all stillbirths occurring in these regions. The Lancet report highlights the need for improved data collection and classification of programmatic causes of stillbirths.
Researchers at Brigham and Women's Hospital have developed an injectable gel that can release medicine only when needed, targeting specific joints affected by arthritis. The gel is made from a self-assembling material that can disassemble in response to enzymes present during inflammation.
Researchers at UMD have discovered a way to control magnetic properties of graphene, which could lead to new applications in magnetic storage and spintronics. The team found that missing atoms in graphene act as tiny magnets, interacting strongly with electrons and giving rise to a significant extra electrical resistance.
Researchers from the University of Arizona and Rensselaer Polytechnic Institute have developed graphene ceramic composites that exhibit new fracture resistance mechanisms, increasing toughness by over 200%. This breakthrough discovery could enable widespread use of ceramics in high-temperature applications.
Researchers studied freshwater fish fossils to understand the Neogene water cycle in Central Africa. A study proposed that Nuna was Earth's first supercontinent. Ancient cave systems near the Allgau Mountains preserved the oldest radiometrically dated dripstones known in the European Alps.
A European study finds that over 60% of key wildlife sites receive excessive aerial nitrogen pollution, threatening biodiversity. Concerted action is needed to address the issue and link conservation, air pollution, and agricultural policies.
Archaeologists have created a 3D topographical map of the ancient Maya city 'Head of Stone', which reveals the location and size of its many buildings and architectural patterns. The site, dated from 800 B.C. to 900 A.D., includes a triadic pyramid, astronomical observatory, ritual ball court, and residential mounds.
Research reveals that host birds have evolved advanced strategies to fight back against brood parasitic cuckoos, including varying egg patterns and egg discrimination. These defenses make it harder for the cuckoo finch to lay accurate forgeries, ultimately outsmarting the parasite.
Researchers found that a short-term high-fat diet reduced tissue damage in the heart after a heart attack by up to 70%. The study suggests that 'splurges' of high fat consumption may preserve cardiac function. Further research is needed to understand why this protection wears off over time.
The discovery of Liaoconodon hui, a complete fossil mammal from China, provides clear evidence of the transitional middle ear evolution in mammals. The specimen shows cartilage supporting the detached middle ear bones, shedding light on the evolutionary shift from reptiles to mammals.
Researchers have discovered a new phenomenon that enables ultrafast magnetic reversal, which could lead to significantly faster data storage. The study found that certain atoms can reverse their magnetization in as little as 300 femtoseconds, making it possible for magnetic memory to operate at terahertz speeds.
Stanford researchers found a link between the collapse of the Soviet Union's anti-alcohol campaign and Russia's four-year mortality crisis. The study suggests that the campaign's closure led to a resurgence in deaths from alcohol poisoning, drunken violence, and slower killers like heart attacks and strokes.
Canada's food safety system lacks adequate regulation, allowing preventable contamination to harm many people and potentially lead to deaths. The current system needs improved standards and incentives for industry to prioritize food safety.
The Lancet Series on Stillbirths reveals over 2.6 million stillbirths annually, with 98% in low-income countries, and explores causes and actions to halve this devastating event.
Researchers at North Carolina State University have developed software that creates a privacy mode for Android systems, giving users flexible control over personal information. The TISSA prototype includes four possible privacy settings for each application, allowing users to customize the level of information accessed.
A new study shows that optimal algal biofuel growth locations can significantly reduce water use, potentially replacing up to 48% of the country's transportation oil imports. Algae-derived oils could also meet congressionally mandated renewable fuel targets and provide a carbon-neutral energy source.
A NIH study found that active surveillance for bacteria and barrier precautions did not reduce the transmission of two important antibiotic-resistant bacteria in hospital-based settings. The use of gloves and gowns was also not sufficient to prevent bacterial spread.
A recent study found that coffee made from capsules contains higher levels of furan, a toxic compound linked to cancer, compared to drip coffee. The levels were highest in espresso and lowest in instant coffee. However, the amounts are still within safe limits for human consumption.
Researchers at MIT have created ultracold gas clouds that repel each other, unlike normal gases. This discovery could help explain the behavior of high-temperature superconductors and neutron stars.
Researchers discovered 56 substances contributing to beer's bitterness and identified five major contributors to harsh aftertaste. Controlling initial pH value and storing at low temperatures can help delay bitter flavors.
The US is expanding its 20-year-old program to secure and destroy Cold War-era nuclear and other weapons of mass destruction in East Africa. The Cooperative Threat Reduction Program aims to counter the threat of bioterrorism in volatile regions where deadly diseases like Ebola and Marburg viruses occur naturally.
Thomas Jefferson University researchers show intensity-modulated radiotherapy (IMRT) delivers higher doses to the prostate bed while sparing surrounding tissue, leading to improved PSA levels and reduced side effects. The study fills a gap in documentation of this technique's benefits for post-operative patients.
Textiles and rope fragments found in a Peruvian cave have been dated to around 12,000 years ago, confirming the antiquity of artifacts previously found at the site. The dating technique used reveals that women may have played a key role in textile production during early high-altitude explorations.