A new model by UCLA researchers suggests the WHO's test-and-treat strategy for HIV in South Africa may not be feasible due to substantial cost underestimation. The study found that annual testing, prevention programs, and healthcare infrastructure scaling up were not accounted for in the original proposal.
Researchers found that pristine rainforests in the Amazon produce aerosol particles that act as seeds for cloud formation and precipitation. These particles are formed from organic molecules emitted by trees and other biological matter, and play a crucial role in sustaining the hydrological cycle.
Case Western Reserve researcher Menachem Shoham discovered new anti-pathogenic drugs that prevent MRSA's production of toxins, rendering the bacteria harmless. The drugs block the activation of a key bacterial protein, AgrA, preventing toxin release and serious infections.
The amount of development aid for maternal, newborn and child health in developing countries doubled between 2003 and 2008. However, the aid was not highly targeted to countries with the highest rates of maternal and child mortality, resulting in some recipient countries receiving far more aid per birth and per child than others.
Researchers at the University of Bristol have developed a silicon chip that uses two identical photons to perform complex calculations and simulations, paving the way for a new type of quantum computer. The device has the potential to solve problems that are currently beyond the capabilities of conventional computers.
A study published in Science has found that the anterior prefrontal cortex and white matter structure are associated with introspective ability. Researchers used MRI scans to analyze participants' brains and identified a correlation between gray matter volume and self-awareness, which could lead to better treatments for mental illness.
Researchers developed a new approach to determining the optimal distribution of sulfates in the stratosphere to achieve defined climate goals. The study found that uniformly distributed aerosols can minimize both temperature changes and hydrological cycle alterations, with potential reductions of up to 90% and two-thirds, respectively.
The study found that between 1970 and 2009, the average woman aged 25 and over saw a doubling of her years in education. This increase in education is estimated to have prevented 4.2 million children's deaths globally in 2009.
A genetic marker linked to elevated tau levels in cerebrospinal fluid predicts rapid progression of Alzheimer's disease. The marker is associated with higher tau levels and more severe dementia in patients, offering new insights into the disease's progression.
Researchers found that intensive care diaries significantly reduced new onset post-traumatic stress disorder (PTSD) following critical illness. The diaries, completed daily by nursing staff and relatives, featured information about the patient's stay accompanied by photographs, helping to alleviate delusional memories and fears.
Research led by Dr. James White has developed a novel 3D imaging technique to visualize myocardial scar tissue and coronary blood vessels in a single image. This breakthrough may improve targeting of blood vessels for therapy in patients requiring pacemakers, bypass surgery or angioplasties.
Research from the Institute for Health Metrics and Evaluation found that increased education among women of reproductive age led to a significant reduction in child mortality rates. Between 1970 and 2009, 51% of the reduction in child deaths can be attributed to improved education levels.
According to a study published in JADA, asthma and cavities are both prevalent childhood diseases in the US. However, researchers found little evidence suggesting that asthma causes tooth decay, with some studies showing children with asthma having fewer cavities.
Researchers at Harvard T.H. Chan School of Public Health have identified two bacteria that instigate gut inflammation, leading to inflammatory bowel disease (IBD) in mice. The study suggests that the genetic background influences the intestinal microbiota, with Enterobacteriaceae playing a role in triggering IBD.
The University of Illinois Center for One Health Illinois is tackling the gap in surveillance by recruiting experts to build a system for sharing environmental and health data. The center has funded several small-scale research projects and is seeking to fund new studies that integrate human, animal, agricultural, and ecosystem health.
MIT researchers found cancer cells use an alternative glycolytic pathway to speed up metabolism and build new cells, which could be exploited to develop new anti-cancer treatments. The discovery sheds light on how cancer cells adapt to rapidly proliferate and highlights potential targets for therapy.
A five-year, $2.8 million National Science Foundation grant supports a bilingual thinking and learning study at Penn State's Center for Language Science. The project aims to greatly expand the existing body of knowledge on the neural and cognitive processes involved in second language learning and bilingualism.
Researchers discovered Prozac's mechanism of action, revealing that it increases serotonin levels by releasing a signal molecule that reduces microRNA miR-16, unlocking expression of the serotonin transporter. This unlocks new 'source' of serotonin production in brain neurons, leading to antidepressant effects.
The moon was bombarded by two distinct populations of asteroids or comets in its youth, resulting in a more complex surface than previously thought. The Lunar Reconnaissance Orbiter (LRO) spacecraft provided unprecedented global topographic maps using the Lunar Orbiter Laser Altimeter (LOLA), highlighting lunar craters with clarity.
Researchers found that bariatric surgery significantly improves lipoprotein profiles in women within a year, reducing the risk of cardiovascular disease. Significant weight loss also leads to improvements in glucose homeostasis and lower mortality rates.
Researchers identified a genetic marker associated with rapid progression of Alzheimer's disease, which may lead to drug treatment targeting tau accumulation. The discovery helps determine the rate at which Alzheimer's patients develop full-blown dementia after diagnosis.
Researchers have discovered previously unseen compositional differences in the moon's crustal highlands and confirmed the presence of material surprisingly abundant in silica. This has provided scientists with global, high-resolution infrared maps of the moon, enabling them to identify silicates commonly found within its crust.
A team of scientists led by David Valentine and John Kessler studied the behavior of methane and other natural gases in the Gulf of Mexico after the Deepwater Horizon disaster. They found that propane and ethane were responsible for most of the respiration and oxygen loss observed in deep plumes, with butane accounting for the remainder.
A new method, developed by Prof. Herzl Chai at Tel Aviv University, measures the size of chips in tooth fossils to determine the types of foods early humans consumed. The study found that larger chips indicate harder foods like nuts and seeds.
Researchers at Princeton University have developed 3D computer simulations of supernovae explosions, providing new insights into the universe. The simulations match massive blow-outs observed by astronomers and may lead to a better understanding of the physics involved.
Researchers have sequenced the genome of the Criollo variety of cacao tree, which is considered the finest chocolate-producing variety. The analysis identified key gene families that could enhance crop yields and provide protection against diseases.
The discovery of the interaction between two cellular signaling pathways may lead to therapies that aid brain growth and repair in children and adults. Researchers have found a critical step toward understanding the molecular networks regulating neural stem cells.
Researchers have discovered that a precursor to the AIDS-causing HIV is at least 32,000 years old, contradicting previous estimates. The study suggests that HIV's evolution into a non-lethal form is unlikely due to its rapid virulence.
Researchers at University of South Florida (USF) are studying the impact of maternal infections on fetal brain development, aiming to prevent autism. Natural compounds like luteolin and diosmin may block detrimental effects of maternal infection on offspring's brains.
A study by University of Utah neuroscientists found that higher altitudes significantly increase the risk of suicide in the Western US. The research suggests that altitude may contribute to metabolic stress associated with mood disorders, particularly in areas with high gun ownership and low population density.
NeuFlow is a new supercomputer that processes tens of megapixel images in real time, allowing for rapid object recognition. The system has the potential to enable self-driving cars by recognizing various objects on the road, such as other cars, people, and stoplights.
Researchers have discovered a new function of interferons, which inhibit the production of IL-1beta protein and suppress inflammation. This finding has significant implications for treating autoimmune and inflammatory diseases.
Hilary Calvert, Alberto Costa, and Bengt Glimelius received the 2010 ESMO Award for their significant work in breast cancer development, multidisciplinary care, and gastrointestinal cancer treatment. The awards recognize their contributions to advancing medical research and improving patient outcomes.
Researchers found that inhibiting GRK2 protects heart cells from destruction after a heart attack, while excess GRK2 leads to more damage. The discovery suggests that anti-GRK2 gene therapy may help prevent permanent heart damage.
Hurricane Igor is a monstrous storm, stretching over 500 miles in diameter. Maximum sustained winds near 145mph indicate weakening, but the hurricane remains powerful and expected to hit Bermuda in the next few days.
Researchers at Johns Hopkins University have identified 13 genes associated with human body mass index, shedding light on the complex relationship between epigenetics and obesity. The study, published in Science Translational Medicine, used genome-wide profiling to uncover epigenetic fingerprints that correlate with body weight.
Adults with congenital heart disease are more likely to suffer from heart-focused anxiety if their parents were overprotective during childhood and adolescence. Health professionals can encourage greater independence for adolescents and adults with congenital heart disease to improve psychosocial adjustment.
A new study found that cognitive skills in children with autism spectrum disorder (ASD) vary from child to child and can improve over time. The research, conducted in Western Australia, assessed 37 children with ASD and 31 typically developing children at ages 5-6 and again three years later.
Researchers used the friendship paradox to study the 2009 flu epidemic among 744 students, finding that friends of central members were more likely to get sick earlier. This method can predict epidemics before they spread widely, allowing for an earlier and more effective response.
A new study suggests that more quality instructional time spent with teachers and less free play time without teacher guidance can prepare children better for starting kindergarten. Low-income children benefit particularly from individual instruction settings.
A longitudinal study of low-income children found that high-quality preschool settings reduce externalizing behavior problems in middle childhood. High-quality child care is particularly important for boys and African American children.
Researchers at The Wistar Institute have discovered the dimeric nature of Cdc13, a protein crucial for maintaining telomere length. This discovery sheds light on how Cdc13 regulates telomerase activity, which can help prevent telomere shortening and support cancer treatment.
Researchers at Washington University School of Medicine discovered a new drug target that can improve the effectiveness of radiation therapy for hard-to-treat cancers. The enzyme cytosolic phospholipase A2 (cPLA2) promotes tumor angiogenesis, enabling tumors to overcome radiation effects.
A UT Dallas research team is testing innovative facial recognition programs to identify individuals who may pose a security risk. The algorithms showed promising results, especially when combined with human evaluation techniques, identifying nearly 100% of matching faces.
The University of East Anglia is launching a study on broccoli's impact on osteoarthritis, a degenerative joint disease affecting six million people in the UK. Sulforaphane, found in cruciferous vegetables like broccoli, blocks enzymes causing joint destruction.
Chronic diseases like heart disease, cancer, and diabetes threaten the health and economies of nations worldwide. The authors assert that global cooperation is crucial to reduce these diseases, citing examples of successful connections in reducing chronic disease.
Researchers identified a mutation in the PTCHD1 gene associated with about one percent of individuals with Autism Spectrum Disorders (ASDs) or intellectual disabilities, mostly males. The study suggests that this mutation may disrupt crucial developmental processes contributing to autism.
Researchers found a possible link between successful gum-disease treatment and reduced preterm birth risk in pregnant women. Successful treatment was associated with lower inflammation levels, no increased probing depth, and loosening of teeth.
Researchers identified a defective ABCB4 gene that impairs cholesterol excretion, leading to high levels of bad cholesterol. The study used laboratory opossums and found that the gene plays a role in controlling blood cholesterol levels in response to dietary cholesterol.
Researchers led by Dr. Robert Wood at Harvard University are developing micro air vehicles (MAVs) to monitor hazardous environments like collapsed structures and chemical spills. The goal is to create agile devices that can perform tasks not achieved before using robotic devices on the scale of insects.
A study published in Neurology found that mild memory changes are caused by brain lesions associated with Alzheimer's and other dementias, contradicting the long-held notion that age is a primary factor. The study involved over 350 participants and showed a rapid decline in cognitive function in the last four to five years of life.
A 2008 study in Newcastle, Australia found that restricting pub closing times reduced assault rates by 37%. The study compared CBD and suburban areas and found no displacement effect.
Chemists at the University of Texas at Austin have discovered a new way to pass electrons between molecules, leading to the development of high-powered organic batteries. The system could be used to create artificial photosynthesis and store more energy than conventional batteries.
Researchers at North Carolina State University developed a robotic catheter to treat atrial fibrillation, reducing operating times and radiation exposure. The catheter uses smart materials for improved maneuverability, allowing for more effective and efficient treatment.
The UCLA team will remotely monitor firefighters using wireless health technologies, developing metrics to analyze health risks and optimize exercise programs. The results will aid in mitigating fatalities due to cardiovascular events and inform new equipment development for firefighters.
The USGS has developed a new method for tracking the progress of reducing nitrogen and phosphorus delivery from the watershed to the Bay. Analysis reveals both good and bad news about progress over the past 31 years, with significant improvements in some watersheds but increases in others.
The study found that radiation exposure increases the risk of both first and second cancers to a similar degree, with higher risks for radiation-sensitive cancers like lung, colon, breast, thyroid, and bladder cancers. Cancer survivors with a history of radiation exposure should continue to be closely monitored for second cancers.
Dr. Chen and colleagues aim to understand fiber cell development and identify genes important for cotton fiber production, with potential applications to biofuels and sustainable textiles.
Hurricane Julia intensified rapidly overnight, becoming a Category 4 hurricane on the Saffir-Simpson Scale. NASA satellites captured clues as they passed over her from space, including heavy rainfall dropping at over 50 mm/hr and a clear eye structure with impressive cloud top enhancement.
Regular aerobic exercise improves sleep quality, reduces depressive symptoms and increases vitality in middle-aged and older adults with insomnia. The study found that exercise elevates participants' self-reported sleep quality, dropping their scores on the Pittsburgh Sleep Quality Index by an average of 4.8 points.