Researchers analyzed the disappearance of the Laurentide Ice Sheet to shed light on how much the Greenland Ice Sheet will contribute to sea level rise. The study found that rapid melting can happen very quickly, with rates comparable to global sea level rise evidence for this interval derived from coral records.
Recent reports suggest antidepressants might exacerbate suicidal tendencies, leading to increased scrutiny of their efficacy. Studies show that depression is a significant risk factor for suicide, with over 60% of completed suicides linked to mood disorders.
Researchers at Georgia Institute of Technology successfully created artificial bones with a graded interface, allowing them to blend seamlessly into surrounding tissues like tendons. This breakthrough technology has the potential to improve outcomes in ACL surgery and other applications where tissue integration is critical.
Researchers led by Professor Ten Feizi aim to identify receptor molecules in the human respiratory tract to understand why H5N1 has not evolved into an effective pathogen. They also seek to determine how changes in the virus's binding protein may increase its ability to attach to and cause infection.
Blood vessel cells can be instructed to form three-dimensional, tube-like structures using a special type of 'instructor' molecule. This discovery may lead to the development of new stem cell-based therapies for organ transplantation.
A 9-year study in sheep found that the likelihood of BSE transmission via blood transfusion was 36% for BSE and 43% for scrapie. Researchers warn that up to 4,000 people could be carrying vCJD in the UK, posing a risk through infected blood.
Researchers have discovered that the diversity of parasitic wasps is even higher than initially suspected, with 313 provisional species identified through a combination of ecological and genetic data. The new analysis sheds light on a group of insects that are already known for their staggering diversity, with estimates suggesting that...
A recent study published in Social Science and Medicine found that while Americans believe mental illness has a genetic cause, this has not led to increased tolerance for people with mental illness. Genetic arguments are associated with fears regarding violence for schizophrenia but social acceptance for depression.
A new study has found that women are 33 percent more likely to achieve full remission of their depression symptoms with the commonly used antidepressant citalopram compared to men. The study, which involved over 2,800 participants, controlled for various factors and suggests a biological basis for the difference in response.
A study found that chewing gum helped relieve anxiety, improve alertness, and reduce stress among participants in a laboratory setting. The use of chewing gum was associated with higher alertness, reduced anxiety and stress, and improvement in overall performance on multi-tasking activities.
Scientists discovered the earliest form of human blood stem cells, called hemangioblasts, which can be replicated in unlimited supply using ACE as a marker. This breakthrough could lead to new treatments for heart diseases, anemias, leukemia and autoimmune diseases by mass-producing progenitor blood cells.
Researchers found that IGF-I stimulates aggressive tumor growth and DNA repair regulation, leading to poor outcomes. The study identifies a gene signature linked to patient responses to breast cancer treatments, offering potential biomarkers for targeted therapies.
Researchers analyzed data from over 700 elderly patients and found no significant reduction in all-cause mortality among those vaccinated against flu. Despite initial reports of a large mortality benefit, the study controlled for various variables and concluded that any potential benefit was small and statistically non-significant.
This special issue of Policy, Politics & Nursing Practice examines the economic value of nursing care and its impact on patient outcomes. The research reveals that improving work environment changes or staffing levels can lead to cost savings through increased nurse satisfaction and improved patient outcomes.
A recent New Zealand study investigated the relationship between obesity and asthma, ruling out systemic inflammation as a common factor. Despite not finding evidence of its involvement, researchers suggest that other possibilities, such as changes in innate immunity or dynamic lung function, may be worth exploring.
A randomized-controlled trial of 20,332 patients with ischaemic stroke found that anti-clotting regimens aspirin plus dipyridamole and clopidogrel showed no significant difference in reducing disability after recurrent stroke. Telmisartan, an angiotensin II receptor antagonist, also did not demonstrate neuroprotective effects.
Limiting soft drink availability at school is associated with a 4 percent decrease in overall consumption. Low-income and black non-Hispanic children consume more soft drinks, emphasizing the need for policy changes beyond food availability at school.
Researchers created molecular tubes composed of wound-up DNA strands with controlled circumferences, enabling diverse nanotechnology applications. The breakthrough utilizes single-stranded DNA tiles to form tubes with varying diameters, promising to design complex self-assembling molecular systems.
A recent study found that children who experienced physical or sexual abuse were more than twice as likely to have asthma. The researchers also discovered an association between stress, violence, and decreased glucocorticoid response, leading to airway inflammatory responses.
Researchers have discovered a key to cold tolerance in corn, allowing it to thrive in colder regions. By increasing PPDK enzyme production during cold weather, corn yields can be extended and growth seasons lengthened.
Researchers discovered a link between atomic bomb exposure and adult-onset papillary thyroid cancer, with a higher risk among younger people. The study found that radiation dose, age at the time of bombing, and elapsed time since exposure were independently associated with the development of the disease.
Research found that babies born to smoking mothers had impaired respiratory function and took longer to recover from oxygen interruptions, increasing their SIDS risk. The study suggests that cigarette smoke exposure may affect brain development and lead to developmental disorders.
A study of 50 healthy adult men found that black non-sensitized males had an average of 17.2% more HLA-sensitive B cells than white non-sensitized males, increasing their opportunity for antibody-mediated rejection. This increased number of B cells may be customized in treatments to lessen the likelihood of organ rejection.
Researchers at UT Southwestern Medical Center discovered that antidepressants need new nerve cells to reduce depression-like behavior in mice. Exercise also stimulates the generation of new nerve cells in the same area. The study suggests a possible mechanism for developing drugs to treat depression by stimulating growth of nerve cells.
Researchers use high-speed imaging to study fruit fly evasive maneuvers, finding that the fly's tiny brain calculates threat location and places legs in optimal position within 100 milliseconds. The team also identifies an optimal method for swatting flies by aiming forward of their starting position.
Researchers found that flowers with nicotine and benzyl acetone attract pollinators, increasing seed production. Plants with these chemicals had higher cross-pollination rates than those without, optimizing outcrossing.
Researchers found that Martian gullies resemble those in Antarctica's McMurdo Dry Valleys, formed as recently as a few hundred thousand years ago. The study suggests changes in snow accumulation and glaciation are linked to Mars' spin obliquity, indicating dynamic climate change on the planet.
Researchers discovered a way to restore function of CF airway cells by manipulating cellular quality control machinery. This technique could significantly reduce sticky mucus that clogs lungs and leads to life-threatening infections.
Cervical cancer control is becoming feasible in developing countries due to highly effective vaccines and promising new screening tests. The monograph presents the best global thinking on cervical cancer prevention with vaccination and screening, evaluating cost-effectiveness and affordability.
Researchers at UC Davis have discovered a low-cost, easy-to-prepare attractant that lures blood-fed mosquitoes without causing human discomfort. The synthetic mixture of trimethylamine and nonanal is equivalent to current attractants but odorless to humans.
Research reveals that animals with forward-facing eyes have an advantage in dense environments, gaining X-ray vision. This allows them to visually survey a greater region around themselves, aiding in hunting and maneuverability.
Researchers at USC's CRAFT center have developed a system to automate concrete building, with Caterpillar funding. The Contour Crafting process uses specialized concrete and has already built six-foot walls, paving the way for future research on design, robotics, and other issues.
Researchers found that patients with incomplete heart attacks are at a higher risk of having another heart attack after discharge. The study suggests that some patients may not receive optimal treatment due to incorrect risk assessment.
Male Jamaican anole lizards use visual displays to mark their territory, including push-ups, head bobs, and dewlap extensions, to warn other males away. This behavior helps avoid physical confrontations and establishes dominance before dawn and dusk, when these lizards are most active.
Researchers at UC Davis developed a control system that allows robots to pick up on cues and predict where leaders are going, enabling them to follow accurately around corners. The system uses behavioral cues such as head turns and incorporates them into decision-making processes.
A new study published in Neuron reveals that the perirhinal cortex can contribute to forming memories by creating simple associations between items. This finding expands our understanding of how brain areas involved in memory formation are organized, potentially leading to new insights into memory disorders such as Alzheimer's disease.
A large study has found a significant increase in fracture rates among HIV-infected patients compared to non-infected controls. The study, published in the Journal of Clinical Endocrinology and Metabolism, reveals that nearly 3% of HIV patients experienced fractures, with risks increasing with age.
A team of researchers has discovered a slow earthquake triggered by the 2007 dike intrusion at Kilauea Volcano, demonstrating the connection between magmatism and earthquake faulting. The study used satellite and GPS data to track the movement of magma and show how it triggered the slow earthquake on Kilauea's south flank.
Research shows that walking on a treadmill can significantly improve mobility and health in stroke survivors even years post-stroke. Brain scans reveal increased metabolic activity in areas associated with walking, suggesting the brain's ability to rewire and recover through exercise.
A recent study published in The Lancet found a statistically significant association between low-dose radiation exposure and cardiovascular disease. Researchers suggest that radiation can cause damage to blood vessels, increasing the risk of heart disease, especially among individuals with certain non-cancer diseases.
A new study suggests that Research Ethics Committees (RECs) play a crucial role in identifying and correcting problems in cancer trial applications. RECs raise concerns about informed consent, misleading information, and missing details, which can impact patient safety and the integrity of the trial.
A recent study published in BMC Public Health found that Afghan children's poor health is linked to a lack of maternal education and autonomy. The research also highlights the negative impact of child marriages on children's health.
LLNL scientists have successfully added unique green solvents to an explosive called TATB, improving crystal quality and chemical purity. This breakthrough aims to create safer explosives with reduced violent reactions.
The WHO Commission on Social Determinants of Health advocates for a new global agenda to address health inequities. The report calls for action-oriented policy responses, including improving daily life conditions and addressing power and money distributions.
The Australian government's tax hike on premixed spirits is unlikely to significantly reduce binge drinking rates. Consumers may switch to unmixed spirits or cheaper beverages, but the impact will be limited due to spirits' small market share.
Researchers discover ancient urban civilization in the Amazon, with clusters of 150-acre towns and smaller villages organized in spread out 'galactic' patterns. The settlements were heavily influenced by historic human activity, contradicting long-held stereotypes about early Western versus New World settlements.
Researchers at the University of Nottingham have created a novel technology using fluorescence correlation spectroscopy to detect and track single molecule binding to A3-adenosine receptors. This allows for real-time observation of receptor activity within living cells, shedding light on potential anti-inflammatory drug targets.
Researchers identified a prion protein characteristic unique to certain natural sheep scrapie cases, which may help study prion diversity and changes during cross-species transmission. The findings distinguish these isolates from bovine BSE cases.
Researchers have developed a ceramic material that heats up in the microwave without causing damage, allowing for faster cooking times. The material, made from petalite and magnetite, can retain heat for up to 15 minutes, enabling innovative food preparation methods.
A recent study found that blood transfusions can transmit a variant of mad cow disease (vCJD) to humans with high efficiency, particularly when donors are in the later stages of infection. The research suggests that blood from BSE- and scrapie-infected sheep could be used effectively in non-human experiments to develop diagnostic tests.
Researchers at TGen have found a way to identify possible suspects using small amounts of DNA, even in complex mixes. This breakthrough could help police investigate crimes more effectively and potentially lead to new cost-effective methods for analyzing DNA evidence.
Researchers identified flies' planning behavior, which occurs approximately 100 milliseconds earlier than previously known components of the escape response. The study found that flies carefully position their center of mass relative to jumping legs to propel themselves away from threats.
Researchers at Ohio State University's Comprehensive Cancer Center discovered that mice can develop normally with just one of the four E2f genes. The study suggests that the location and timing of gene activity play a crucial role in development, contradicting previous assumptions about cancer-causing gene regulation.
A report by Wildlife Conservation Society reveals a large population of threatened monkeys, including 42,000 black-shanked douc langurs and 2,500 yellow-cheeked crested gibbons, in Cambodia's Seima Biodiversity Conservation Area. The populations have remained stable since 2005 and are estimated to be the largest known in the world.
A novel 3D ultrasound probe guides catheter procedures with clearer real-time images, eliminating x-ray radiation and contrast agent risks. The device is portable and provides continuous imaging, enabling wider range of interventional procedures.
Brandeis scientists have identified a catalyst that efficiently breaks the carbon-fluorine bond, rendering it harmless to the environment. This breakthrough finding could lead to large-scale reactions to convert environmental pollutants into reusable or destroyable products.
Scientists have created a biophysical methodology to retune functioning regions of the ear to recognize frequencies associated with damaged areas, which could remedy even substantial hearing loss. The method uses modifications that enable remapping of frequencies without losing auditory information.
Researchers at the University of Georgia discovered that 25% of genes in Neurospora crassa are under control of the biological clock, a much higher rate than previously reported. This finding has significant implications for understanding various biological processes, including cell cycling and ribosome biogenesis.
A team of University of Cincinnati researchers is studying the relationship between depression and Parkinson's disease to gain insight into possible treatments. In pilot models, they found that stress-induced depression exacerbates problems with movement and causes brain cells to die faster.
The Endocrine Society has released a new clinical practice guideline for the detection, diagnosis, and treatment of primary aldosteronism. The guidelines recommend using the aldosterone-to-renin ratio to diagnose PA in higher-risk patients.