A team of scientists at Weill Cornell Medical College has developed a new approach to turn human embryonic and pluripotent stem cells into plentiful, functional endothelial cells, critical for blood vessel formation. This breakthrough technique boosts the efficiency of producing these cells by up to 40-fold.
Research by University of Alberta's Bill Hodgetts found that exercising in gyms often leads to increased volume levels, potentially causing hearing loss. The solution lies in using earphones with earplugs or sealant materials to reduce background noise and protect auditory health.
Scientists have created antibodies in llamas to detect seven types of botulinum neurotoxins, which are highly toxic and can cause paralysis. These llama antibodies, called single domain antibodies, may play a role in future anti-botulism treatments and could improve biosensors for detecting toxins.
Researchers from the University of Valencia confirm pine resin was used to seal a 2,000-year-old amphora found in Morocco. The vessel contained metallic fragments likely used for iron-working, suggesting it may have been reused as a protective container.
Alexander Ksendzovsky, a third-year medical student, has been awarded the Lucien Rubenstein Award for his groundbreaking research on a potential vaccine to fight malignant brain tumors. The American Brain Tumor Association recognized his outstanding work as part of their annual Research Award Program.
Researchers identified a novel class of compounds that inhibit HCV replication by disrupting a critical virus-initiated activity, offering a prospect for inhibiting viral replication with minimal toxicity. The compounds were found through an in vitro assay and demonstrated effectiveness against HCV's replication cycle.
A new study identifies thymic stromal lymphopoietin (TSLP) as a molecule that directs immune cells to develop an allergic response. The signaling molecule is involved in the development of allergic diseases such as asthma, atopic dermatitis and food allergy.
Researchers have identified a biological marker in the brains of those exhibiting post-traumatic stress disorder (PTSD) using magnetoencephalography (MEG), a non-invasive measurement of magnetic fields in the brain. With over 90% accuracy, they were able to differentiate PTSD patients from healthy control subjects.
University of Adelaide researchers have developed a low-cost bushfire detection system that can be sent via SMS or mobile network, warning authorities and people living in fire-risk areas of impending bushfires. The system costs less than $500 to build and uses solar-powered energy, reducing running costs.
Asteroids that come within a quarter of the distance between Earth and the moon experience seismic shakes strong enough to create fresh surface material. The finding helps answer decades-long questions about meteorite origins and opens a new field of asteroid seismology.
Researchers developed a brain-based model to understand how Parkinson's affects learning and attention, highlighting the role of dopamine in non-motor symptoms. The study shows that dopamine medications enhance attentional performance in patients.
Researchers linked Southwest winter precipitation to North Atlantic temperatures, finding abrupt climate changes occurred during the last Ice Age. The study used a stalagmite from an Arizona cave to reconstruct century-by-century climate records.
A joint UC study found that three-quarters of medical students believe conventional Western medicine would benefit from integrating more complementary and alternative medicine (CAM) therapies. The survey revealed that CAM can enhance patient care, improve treatment outcomes, and increase the effectiveness of healthcare systems.
Researchers at Baylor College of Medicine and Stanford University discovered how Group II chaperonins in archaea close folding chambers to initiate protein folding events. The molecular nanomachine requires ATP to open and close its chambers, leading to the release of functional proteins.
A combination of two fully human monoclonal antibodies shown to reduce Clostridium difficile (C. difficile) infection recurrence by 72%. The treatment resulted in a significant reduction in disease relapse, offering new hope for patients battling this debilitating condition.
Researchers create e-Textiles that double as rechargeable batteries using single-walled carbon nanotubes. The fabrics retain flexibility and stretchability while storing electricity.
The BIOFAB facility aims to produce thousands of standardized DNA parts, shortening the development time and lowering the cost of synthetic biology for academic or biotech laboratories. The project will enable researchers to mix and match genetic parts in synthetic organisms to produce new drugs, fuels, or chemicals.
Gardeners in the UK are encouraged to work together to protect vulnerable wildlife by creating a network of interlinking habitats. Collective action can make a real difference at the city scale, with top-down financial incentives and bottom-up community-driven initiatives supporting co-operation.
Researchers found that PrEP prevented rectal and intravenous HIV transmission in humanized mice with 90% protection rate. The study suggests PrEP can block multiple routes of HIV transmission, providing a promising approach to prevent new infections.
The Tropical Rainfall Measuring Mission (TRMM) satellite reported that Tropical Depression 01W's rainfall is now light and widely scattered. The storm has made landfall and is dissipating over Vietnam and Cambodia, bringing light rain to some areas.
Researchers found strong links between mild COPD and diminished heart function in healthy adults, with the strongest association seen in current smokers and those with emphysema. The study's findings suggest that treating lung disease may improve heart function, but further research is needed.
A new study from Rice University's Jones Graduate School of Business found that internal CEOs tend to outperform externally hired leaders in the long term. Over three years, internally promoted CEOs were more likely to initiate and implement strategic changes that build a firm's competitive advantage.
The researchers successfully virtualized Red Storm supercomputer using the Palacios virtual machine monitor, running communication-intensive benchmarks with extremely high performance. The system achieved a measured overhead of less than 5 percent, demonstrating the feasibility of virtualizing large-scale parallel computing systems.
A study published in PNAS found that a synaptic maturation disorder, particularly with the neuroligin-1 protein, may trigger autism. The research suggests that an insufficient amount of this protein can impair the maturation process at nerve terminals, leading to communication problems and weaknesses in social contacts.
A study by Duke University researchers found that globally distributed teams need face-to-face communication to overcome time zones and locations. Teams with non-overlapping work hours experienced significant coordination delays despite using technology like email and instant messaging.
A study by UCSF researchers found that low vitamin D blood levels are associated with a significantly higher risk of relapse attacks in childhood-onset multiple sclerosis patients. Increasing vitamin D levels can potentially decrease the rate of subsequent relapses.
A breakthrough blood test for diagnosing schizophrenia could become available in 2010, marking a significant shift from traditional brain-based diagnostic methods. The test leverages biomarkers detected in the blood and other bodily fluids to provide a real-time picture of the disease.
Researchers have found that mutational robustness can either impede or facilitate adaptation depending on population size, mutation rate, and reproductive capabilities. Neutral mutations can set the stage for future beneficial adaptation, allowing populations with intermediate levels of robustness to adapt fastest to novel environments.
Research reveals that school classroom air contains significantly higher levels of ultrafine particles than polluted outdoor air, posing a risk to students' lung health. The study found elevated particle levels during art activities and cleaning with detergents.
A five-year international study found that acyclovir suppressive therapy did not reduce the risk of HIV transmission in couples where one partner had both HIV and HSV-2. The study revealed significant reductions in plasma HIV levels and genital ulcers, but no impact on HIV transmission.
A study confirms the long-standing idea that animals such as lemurs and flying foxes arrived in Madagascar via natural rafts blown out to sea. The research, published in Nature, uses a three-year computer simulation of ancient ocean currents to support the theory, which was previously introduced by George Gaylord Simpson.
A study published in Int. J. Information and Operations Management Education found that online quizzes are not effective in improving student learning. Despite educators' hopes, the study revealed no significant difference in grades between courses with and without online quizzes.
A new study from Columbia University Medical Center researchers found that even mild cases of chronic obstructive pulmonary disease (COPD) can limit the heart's ability to pump effectively. The study, which involved over 2,800 adults, suggests a link between lung function and heart function.
A recent study found that fertility drugs contribute significantly to the growing problem of premature births in the US. The March of Dimes urges more research and leadership to develop specific guidelines for the proper use of these drugs.
Researchers at Salk Institute identify viral protein ICP0 that shuts down host cell's DNA damage response, enabling HSV to infect cells. By removing specific ubiquitin marks, ICP0 allows the virus to take over and multiply.
A study published in ACS' Journal of Agricultural and Food Chemistry found that blueberry juice supplementation improved learning and memory tests in volunteers aged 70-72. The researchers suggested that consistent blueberry consumption may offer an approach to mitigate neurodegeneration.
A new study by NOAA and international partners found that springtime ozone levels in western North America are rising due to air flowing eastward from the Pacific Ocean, primarily from Asia. The increases could make it harder for the US to meet ozone pollution standards.
A recent study published in the American Journal of Botany explores the origins of New Zealand's flora. The research reveals that two ancient plant fossils from the Late Oligocene/Early Miocene period (28-15 mya) indicate a younger history for most groups of plants in the region.
Scientists at EMBL discovered membrane-coat proteins in bacteria from the PVC superphylum, which could aid in understanding eukaryotic cell evolution and structure. These findings provide molecular evidence that coat proteins shape eukaryotic endomembrane systems in prokaryotes.
Researchers used MEG to distinguish between neural activity of PTSD patients and healthy controls with over 90% accuracy. A positive association was found between prediction certainty and symptom severity, suggesting potential use in gauging disorder levels.
Researchers identified a new gene, Cyclophilin B, linked to osteogenesis imperfecta's recessive form. The protein plays a crucial role in modifying collagen, which forms the molecular scaffolding of bone tissue.
A Tel Aviv University study found that restoring normal estrogen levels can alleviate schizophrenia-like behavior in female rats. The researchers also discovered that estrogen increases the effectiveness of anti-psychotic drugs, providing potential hope for treating psychosis in women vulnerable to schizophrenia.
Researchers found that children who can pick up on non-verbal cues, recognize their meaning, and respond appropriately are more likely to have successful relationships and avoid social rejection. A second factor is being able to attach meaning to these cues, while a third factor is social problem-solving ability.
The review highlights the growing problem of counterfeit internet drugs, with estimates suggesting up to 90% of these illegal preparations are now sold online. The study found that 44% of Viagra offered on the internet is counterfeit, posing risks to patients and undermining healthcare systems.
Researchers at UC San Diego successfully synchronized bacterial genetic clocks to blink in unison and alter their blinking rates in response to environmental conditions. The achievement is a crucial step towards creating genetic sensors that can monitor temperature, poisons, and other hazards.
A new study suggests that reducing salt in the American diet by just one-half teaspoon per day could prevent nearly 100,000 heart attacks and 92,000 deaths annually. This reduction in salt intake could also save the US around $24 billion in healthcare costs.
A new study links springtime ozone increases above western North America to air pollution from Asia and other regions. Researchers analyzed nearly 100,000 ozone observations to find that global atmospheric wind patterns track emissions back to broad regions of origin.
Research found that Pacific dunlins have lost weight and spend more time flying to escape peregrine falcons, a response to the increased threat of predation. The dunlins' adaptations help them survive harsh winters with reduced risk of starvation.
A new oral drug Cladribine has been shown to significantly reduce multiple sclerosis (MS) relapse and deterioration, with no short-term side effects. The treatment, which only needs to be taken for 8-10 days a year, promises to change the lives of the 100,000 people in the UK affected by MS.
Researchers found that mouse sperm from promiscuous species can discriminate between closely related and unrelated sperm, clustering together to swim faster. This cooperative behavior is driven by competition among males and may be widespread among 95% of mammals.
Duke University is developing a rapid and accurate genomic-based diagnostic test to determine radiation exposure from a dirty bomb or nuclear attack. The test, which uses a signature of gene expression, shows over 90% accuracy in diagnosing radiation status.
A study found the proportion of children in high-risk areas infected with H1N1 during the first pandemic wave was 10 times higher than estimated from clinical surveillance. This suggests that children play a key role in transmission and are a target group for vaccination.
Researchers found that the natural grass/cleat combination placed a statistically lower maximum strain on the leg compared to other shoe-surface interactions. The Astroturf shoe was 80.2% greater, while modern playing turf/turf shoes were 47.5% and 45.1% greater than the natural/grass cleat combination.
Researchers developed a technique to triple the number of events in reading qubits, strengthening the signal and enabling more efficient quantum data storage. This approach uses the spin of Nitrogen nuclei to add steps to the process, potentially paving the way for practical quantum computers at room temperature.
Scientists found that repeated exposure to tobacco smoke made lung cancer worse by causing inflammation in the lungs. The study provided definitive evidence for the role of lung inflammation in promoting lung cancer growth and suggested using anti-inflammatory agents to prevent or slow lung cancer progression.
A study led by the University of Leicester found that most men in Europe have Y chromosomes tracing back to ancient Near Eastern farmers. This suggests a significant reproductive advantage for farming males over indigenous hunter-gatherer males during this period.
A new study by University of Illinois psychologists suggests that individuals with low achievement motivation actually perform better on tasks when they are framed as enjoyable. This finding challenges the common assumption that motivation is essential for success and highlights the importance of considering individual goals and prefer...
Consumers tend to respond more favorably to abstract language than concrete descriptions when discussing products. In word-of-mouth messages, people use different types of language depending on whether they like or dislike the brand. Abstract language is associated with stronger buying intentions, especially for positive experiences.
Yasuní National Park is home to an array of plant and animal groups, harboring extremely high numbers of animals and plants in small areas. The park's extraordinary diversity makes it a crucial area for sustaining biodiversity in the long term, with scientists recommending a moratorium on new oil exploration or development projects.
A meta-analysis of 50 experiments found that consumers generally respond positively to having many choices, with a