Research by Johns Hopkins physicists reveals that atomic-scale surfaces exhibit drastically different friction and adhesion forces due to their unique structures. The findings have significant implications for the development of nanotechnology, which could lead to improved device performance and functionality.
Astronomer Nicolas Dauphas has refined the accuracy of the cosmic clock by comparing the decay of uranium-238 and thorium-232, estimating the age of the Milky Way at approximately 14.5 billion years, plus or minus 2 billion years.
Researchers identify three reasons to be cautious about an autism epidemic, including a flawed California study and the lack of reporting category for autism in public schools. They propose that the increase in diagnoses may be due to broadened diagnostic criteria and increased public awareness.
A recent study found that living near a casino increases the risk of problem gambling, with a 90% increase in odds for those within 10 miles. Social and environmental influences also play a role, with respondents from disadvantaged neighborhoods reporting higher rates of problem gambling.
Research suggests that saturated and trans fats activate a specific potassium channel in the pancreas, increasing blood sugar levels and insulin secretion. People with a specific genetic polymorphism, found in about 2 million Canadians, may be more susceptible to type 2 diabetes if they consume high-fat diets or are overweight.
A study found that routine immunisation of infants with the Haemophilus influenzae type b (Hib) vaccine significantly reduced meningitis incidence rates in The Gambia. The researchers hope their findings will encourage other developing countries to adopt Hib vaccination programmes, helping achieve the United Nations' goal of decreasing...
The study provides guidance on managing severely injured patients in emergency situations, including the importance of close follow-up, a 'chain of command' team, and preparedness for staff recruitment. The authors also offer recommendations for treating common injuries caused by bomb blasts, such as brain, lung, and orthopaedic injuries.
Researchers control RNA structure by attaching DNA strands, allowing precise folding and manipulation of RNAs. The technique also enables reversible or irreversible changes to molecular shapes, offering programmability and potential applications in biological and non-biological systems.
Researchers at Public University of Navarra study the response of four grape varieties to hydric stress, finding that recovery of photosynthetic activity varies by variety. The study aims to inform suitable land irrigation policies for each variety, improving wine production.
Patients with rheumatoid arthritis (RA) are at a higher risk of developing coronary artery disease (CAD), with more advanced atherosclerosis and increased cardiovascular death. The underlying RA disease process, particularly elevated CD4+CD28- T cells, contributes to this increased risk.
University researchers have discovered a key gene in the monoterpene biosynthesis of bark beetles, which could lead to new methods to disrupt aggregation pheromone production. This breakthrough may help control devastating insect infestations such as those affecting Lake Tahoe and Western forests.
Researchers from Pitt's Department of Electrical and Computer Engineering have developed a customized active RFID tag generation system with ADCUS. This system enables smaller companies to quickly produce executable code for various RFID standards, covering the complete RFID market.
Researchers discovered that preemie brains can regrow neurons and glial cells in response to injury. The study suggests that the mammalian brain is more plastic than previously thought, allowing it to recover from serious brain injuries.
A new study from Karolinska Institutet found an inverse relationship between the birth weight of a baby and the risk of cardiovascular diseases among fathers, suggesting genetic factors may be at play. The study also revealed that mothers of babies with low birth weights are more likely to develop cardiovascular disease.
A new research project aims to introduce the Wolbachia bacteria into mosquitoes that carry the deadly dengue virus, reducing its lifespan and transmission. The five-year study, led by UQ, seeks to develop a cost-effective, self-perpetuating control strategy for large regional areas.
Researchers identified genetic regions on chromosomes 6, 7, and 19 associated with prediabetes in response to aerobic exercise. The study found that individuals differ in their blood sugar equilibrium after exercise, allowing for unique analysis of insulin sensitivity and glucose metabolism.
New research shows that sleep plays a key role in improving motor skill performance, particularly in children and stroke patients. By consolidating memories and strengthening connections between brain cells, sleep enables more efficient storage and retrieval of information.
A study published in Arthritis & Rheumatism found that doxycycline slowed joint space narrowing by 40-33% compared to a placebo. While it didn't reduce joint pain severity, it did decrease frequent increases in knee pain. The treatment was well-tolerated with minimal side effects.
The Rutgers, NEI Corp., and Indian materials center partnership aims to develop nanoparticle-infused materials for various industries. The researchers will explore ways to use nanosized particles to increase the wear-resistance of metals, ceramics, and protective coatings.
Scientists at the University of California, Berkeley, have successfully tested their life detection instrument, the Mars Organic Analyzer (MOA), which can detect amino acids and homochirality on Mars. The instrument passed key tests in Chile's Atacama Desert, paving the way for its inclusion on the European Space Agency's ExoMars mission.
Researchers found that pomegranate juice reduced brain tissue loss by 60% in mice whose mothers drank water mixed with pomegranate concentrate. The study suggests that pomegranate juice may provide neuroprotective effects and potentially reduce the impacts of hypoxic ischemic brain injury.
PLOS Biology has achieved a record-breaking impact factor of 13.9, placing it above established journals such as EMBO Journal and Current Biology. This milestone reflects the journal's growing influence in the scientific community, particularly among open-access advocates.
Poorer people have been left out of past aid programs due to insufficient planning, and donors and developing countries should learn from these mistakes. Local health officials must decide who will receive therapy and live, and who will go without, despite growing demand and limited supply.
A study by Yale University researchers found office-based buprenorphine treatment reaches individuals who are unable to use methadone, with key demographic differences including age, sex, and employment status. The treatment has shown success in reaching patients with lower rates of injection drug use and hepatitis C infection.
Researchers found that holly trees can serve as an indicator of climate change due to their adaptability and ability to thrive in changing environments. This is attributed to the tree's flexibility, allowing it to survive in a range of conditions.
A new brain scan study found that smokers who experience intense cravings exhibit heightened sensitivity to smoking-related images. The researchers suggest that these findings may lead to the development of diagnostic tests and personalized quitting methods for smokers.
Researchers discovered that griseofulvin inhibits cancer cell growth by affecting mitosis, potentially providing a therapeutic advantage when combined with other treatments. The drug has been used for decades to treat fungal infections and shows mild anti-cancer activity.
Research suggests that hormone replacement therapy (HRT) can be beneficial for women experiencing moderate to severe vasomotor symptoms due to estrogen deficiency. Additionally, studies have shown that HRT does not compromise survival in patients who are survivors from gynecologic cancer.
A study found that moderate weight loss results in a significant reduction of compressive knee-joint loads, with forces reduced by 18 percent in overall function for every 5 percent weight loss. The researchers also discovered that the force reduction is four times greater than the actual weight loss.
The project aims to formulate a vaccine with a safe, low-cost additive derived from weakened Salmonella bacteria, which can enhance the immune response. A single-dose oral vaccine is also being developed, making it more accessible and practical for use in developing countries.
A recent study by Yale University found that watching more TV increases seniors' negative views of aging. Participants who filled out a television-viewing diary with an additional page to evaluate how older characters were presented developed greater awareness of these portrayals and reported less negative images of aging.
A study of 124 radiologists found that concerns about medical malpractice led to a significant increase in recommendations for breast biopsies and diagnostic testing. The majority of women who undergo additional testing after a screening mammogram do not have cancer, highlighting the need to balance detection rates with patient anxiety.
The study found that homes built under the Florida Building Code since 2002 sustained less damage than those built between 1994 and 2001. The research also highlighted the effectiveness of recent code requirements, such as reinforced garage doors, in reducing hurricane-related damage.
A recent Mayo Clinic study found a significant association between benign prostate obstruction and chronic kidney disease in older men. BPH can cause bladder outlet obstruction, leading to increased risk of death, hospitalization, and cardiovascular events.
A study evaluated the effect of fMRI results on diagnostic work-up and treatment planning for 60 consecutive seizure disorder patients. The findings helped five patients avoid additional surgery, altering the extent of surgery in four others. This non-invasive test improved surgical decision making for epilepsy patients.
A Finnish twin study found that intentional weight loss was linked to increased mortality in otherwise healthy individuals. The findings highlight the importance of preventing weight gain in children and adults to reduce the risk of health problems.
Researchers found a significant decrease in nursing injuries with increased staffing levels, particularly in for-profit homes. The study's findings have implications for Canadian healthcare, highlighting the need for policy changes to prioritize quality care over profits.
A recent study published in Archives of Internal Medicine found diuretics to be equally protective against fatal coronary heart disease or non-fatal heart attacks among people with diabetes. Additionally, diuretics were shown to be more effective in lowering systolic blood pressure and reducing the risk of congestive heart failure.
A Stanford study reveals that once patients have accessed healthcare, racial and ethnic disparities in care become negligible. Despite this, the researchers emphasize that disparities in access and utilization may still be significant contributing factors to health inequities.
The HealthGrades Women's Health Outcomes in U.S. Hospitals study found a significant gap in women's cardiac and stroke outcomes between top-performing and poor-performing hospitals. The best-performing hospitals showed a 39% lower risk-adjusted mortality rate than the poorest-performing hospitals for cardiovascular disease.
A national survey found that nearly half of Americans believe misconceptions about cancer, including that surgical treatment spreads the disease. The study suggests that public education interventions are needed to address these misconceptions among vulnerable populations.
A promising new vaccine candidate has shown protection against Lassa fever in macaque monkeys, offering hope for a potential vaccine. The vaccine's effectiveness and safety will need to be further assessed in larger studies.
A review of clinical research on vitamin C and the common cold found no benefit from supplementation for prevention or treatment. However, vitamin C may have a minor effect on reducing cold duration when taken before symptoms start. Vitamin C was also effective in preventing colds in athletes exposed to extreme physical stress.
Researchers found that African Americans and Native Americans are more likely to be diagnosed with advanced disease and die of their disease compared to Asian Americans and non-Hispanic whites. The study highlights the importance of considering heterogeneity within broad racial/ethnic categories when evaluating cancer risks.
The institute provides consultation and support for faculty and administrators at K-State to form collaborative academic programs. It helps institutions pool their faculties to serve new needs and generate income through inter-institutional Internet-based programs.
A study published in PLOS Medicine found that individuals with an intention to lose weight had lower mortality rates compared to those who did not have this intention. The researchers followed a cohort of overweight individuals for 18 years and found that those who were motivated to lose weight had significantly lower mortality rates.
A survey of women aged 40-44 found they value logistical, harm, and benefit information before their first screening mammogram. Women prefer to participate in the decision-making process, with some preferring clinician input.
Researchers used real-time myocardial contrast echocardiography (RTMCE) to diagnose coronary artery disease in patients with chest pain. The study found that perfusion imaging was more effective than wall motion analysis in detecting the condition and predicting patient outcomes.
Researchers found that Gleevec, a cancer drug, slowed the spread of poxviruses in mice. The study suggests that Gleevec might be useful as a preventative against adverse effects of smallpox vaccine.
Research in macaque monkeys suggests that infant abuse is transmitted through early experience, rather than genetic inheritance. The study found that abused mothers were more likely to abuse their own offspring, but only if raised by non-abusive caregivers.
Researchers found that Tai Chi significantly improved the physical fitness of fall-prone older adults, reducing the risk of falls and fractures. The exercise program showed a 25% reduction in walking time for those who practiced Tai Chi compared to the control group.
Researchers at Dana-Farber Cancer Institute have identified regions of irregular gene copy numbers in non-small cell lung cancer cells, pointing to a large number of previously unknown cancer-causing genes. The study also found that certain genes, including p63, play a role in the development of squamous cell carcinomas.
Diabetics with hypertension can significantly reduce cardiovascular disease risks by taking diuretics, according to a new study. The medication has been shown to be more protective against heart failure and stroke in patients with diabetes and high blood pressure.
Researchers found that language comprehension involves continuous processing and competition between representations, contradicting traditional discrete models. The study used mouse movements to track students' processing of words, revealing curved trajectories indicating gradual ambiguity resolution.
The special issue of PLoS Medicine examines the disproportionate death toll among women in the tsunami, highlighting pre-existing gender disparities. The article also critiques the inadequate healthcare response, including invasive media representation and ineffective psychological therapies.
Scientists at Salk Institute created a mouse model to study p53 regulation in vivo, finding that chemical modifications are not essential for protein activation under stress or normal conditions. The research has implications for cancer treatment and the development of specific drugs targeting p53's negative regulators.
A new study published in The Journal of Sexual Medicine found that over half of men with ED and cardiac disease can safely discontinue oral nitrates to use PDE-5 inhibitors, restoring sexual function. The study showed no adverse cardiac events in the group, providing new evidence-based care for men with ED and cardiac disease.
A recent study using ancient DNA reveals that South American horses diverged from North American caballines around 3 million years ago. The research also suggests that all North American caballines belong to the same species and convergently evolved morphologically.
According to a new study, $5.1 billion could save the lives of 6 million children annually by implementing community-based health interventions. These interventions, which include vaccines and preventive treatments for common childhood illnesses, could reduce the current annual cost of treatment by over 60%.
A new experimental vaccine has shown promising results in protecting nonhuman primates from Lassa fever. The vaccine, developed using a non-pathogenic form of vesicular stomatitis virus as a carrier, has been successfully tested with all vaccinated monkeys surviving infection.