Researchers have discovered a direct ancestral link between ancient human remains and Native American communities, revealing insights into the initial peopling of the Americas. By analyzing genomes of ancient and modern populations, scientists can reconstruct the evolutionary history and adaptations of early Americans.
A comprehensive review of statin studies found no association between statin use and memory loss or dementia. Statin users had a lower risk of dementia, Alzheimer's disease, and mild cognitive impairment compared to non-users.
A Disney Research team developed a method called joint importance sampling to render animated scenes featuring fog, smoke or underwater scenes more efficiently. This approach significantly reduces the time necessary to produce high-quality images or animations without grain or noise.
Researchers developed an antibody fragment that binds to dabigatran, reversing its anticoagulant effects. The study showed immediate and sustained reversal of dabigatran-induced anticoagulation in healthy male volunteers.
Researchers have characterised the coat of a potential poultry probiotic, Lactobacillus johnsonii, which consists of two exopolysaccharides that play important roles in colonisation and adhesion. The unique EPS structures may help the bacteria compete with pathogenic C. perfringens.
Family members of patients with coronary heart disease improved cholesterol levels, physical activity, and dietary habits after participating in a year-long intervention program. The program included counselling sessions, goal setting, and feedback, resulting in reduced body mass index and waist circumference.
Research review highlights cranberry's unique bioactive compounds that may reduce UTI incidence, improve cardiovascular health and temper inflammation. Cranberries also show promise in supporting endothelial function and reducing arterial stiffness.
The installation of Blue Gene Active Storage at JSC enables scientists to exploit the performance of the supercomputer, facilitating interactive access to large amounts of data. The system's non-volatile memory technology features high bandwidth and very high access rates, addressing the increasing costs of data transport.
A recent study published in Molecular Biology and Evolution found that herbivores have a greater number of Tas2r bitter taste receptor genes than omnivores and carnivores. The researchers correlated the Tas2r gene repertoire with dietary compositions, revealing a significant relationship between plant diet fraction and Tas2r gene number.
A randomized controlled trial found that early surgery for hip fractures in older adults can significantly reduce complications and improve outcomes. The study involved 60 patients aged 45 or older who received either accelerated care or standard care, with the former resulting in shorter wait times and improved surgical results.
A 15-year study found human error is the most common cause of infant asphyxiation at birth in Norway, with 50% attributed to poor fetal monitoring. The study suggests training for midwives and obstetricians, along with high-quality audits, could help reduce compensation claims after birth asphyxia.
Researchers discovered a mechanism behind VapC20 toxin in M. tuberculosis, which destroys the bacteria's protein factory by cleaving a key location. This discovery could lead to new ways of treating pathogenic bacteria by impairing their cytotoxin use.
Researchers identify five types of boredom, including apathetic boredom, which resembles learned helplessness or depression, in a study published in Motivation and Emotion. The findings show that people tend to experience one type of boredom at a time, rather than randomly switching between different types.
Scientists have made a breakthrough in understanding the regulation of PDE3A enzymes, which regulate cardiac contractility. The discovery of individual isoforms and their interactions with different proteins suggests that developing targeted drugs could reduce sudden cardiac death risk.
Scientists at the Walter and Eliza Hall Institute have discovered that Langerhans cells, a single cell type thought to be behind the skin's immune defense, are actually two different types. This finding could lead to new insights into treating skin infections and skin cancers.
A late-breaking clinical trial shows spironolactone reduces risk of repeated heart failure hospitalizations, but not overall mortality or cardiac arrest. The study enrolled 3,445 participants and followed them for nearly 3.5 years.
Researchers at ORNL led by Sergei Kalinin discovered complex and unpredictable patterns on ferroelectric material's surface when written in dense arrays. The study suggests the possibility of memcomputing, where information storage and processing occur on the same physical platform.
Scientists analyzed 538 amber samples to reconstruct ancient atmospheric compositions, finding that oxygen levels were significantly lower than today. This suggests a link between low oxygen and high carbon dioxide concentrations, which may have influenced climate and life evolution.
A study found that rural, poorer counties in the US have lower CPR training rates, particularly among communities of color. The disparity is attributed to geographic, population, and healthcare characteristics. Researchers call for targeted training programs to narrow existing gaps.
A pilot study found that meditation and mindfulness-based stress reduction improved functional connectivity in the brain, reducing hippocampal atrophy associated with Alzheimer's disease. Researchers suggest this intervention may contribute to improved quality of life for patients with cognitive decline.
A study of 3,398 participants found that higher coronary artery calcium (CAC) density was associated with a lower risk of heart disease and cardiovascular events. The researchers discovered that CAC volume was positively correlated with CHD and CVD risk, while CAC density was inversely related.
Researchers at UT Austin developed a simple scaling theory to predict gas production in Barnett Shale wells. They found that most horizontal wells underperform their theoretical limits, and improving hydrofracture connections could increase gas extraction.
A study published in Medical Care found that high-volume ERCP providers had lower failure rates and hospitalization rates compared to low-volume providers. The authors suggest establishing quality improvement guidelines and credentialing processes to improve patient outcomes.
A study published in JAMA Internal Medicine found that beta-blocker medication given to patients with heart disease undergoing noncardiac surgery is associated with a lower risk of death and major adverse cardiovascular events. The effect was more pronounced in patients with heart failure or recent myocardial infarction.
A trial testing varespladib to reduce cardiovascular events showed the drug actually increased the risk of heart attacks and other events. Researchers found that patients treated with varespladib were more likely to experience sudden death, heart attacks, strokes, and unstable angina than those on placebo.
Scientists at Caltech created a lab-on-a-chip device using SlipChip technology that can accurately measure the concentration of HIV RNA molecules in a sample. The digital approach uses amplification chemistry to produce a fluorescent signal, allowing for precise quantification despite changes in environmental conditions.
Researchers found that addressing childhood deprivation is essential to prevent damaging health behaviors in adulthood. The study, based on a 1946 birth cohort, reveals that social and economic inequalities in early life significantly impact mortality in later life.
Researchers at Duke University found that daily texting can help obese black women lose weight. The Shape Plan intervention used tailored behavioral goals, brief feedback, and tips to track participants' progress. After six months, 26 women lost nearly 3 pounds, while 24 gained 2.5 pounds.
A Michigan State University sociologist argues that neighborhood integration and cohesion cannot co-exist due to how people form relationships. The study suggests that finding a balance between the two is necessary, as integrating neighborhoods often leads to decreased social cohesion.
A St. Jude Children's Research Hospital study found that young adult childhood cancer survivors are more likely to be frail than their peers, increasing their risk of death and chronic disease. Frailty is associated with advanced age in the general population but was not linked to lifestyle factors in female survivors.
A German-Peruvian science team found that ocean eddies play a crucial role in distributing oxygen and nutrients in the oxygen minimum zones. This discovery helps improve model computations to predict future expansions of low-oxygen areas in the ocean, addressing the threat of ocean de-oxygenation.
Manipulating protein PRH can hinder the ability of cancer cells to penetrate into neighboring environments, potentially preventing their spread. The findings suggest that PRH regulation of Endoglin may represent a novel method for controlling migration and treating multiple cancers.
Researchers found that female mice who competed socially for mates produce more urinary pheromones, making their sons more attractive to females. However, this increased attractiveness comes at a cost, as the sons have shorter lifespans due to the energy-intensive production of pheromones.
Researchers found that individuals with less experience in holding power tend to seek revenge more than those who feel more self-assured. The study also showed that body posture can affect revenge tendencies, with expansive postures leading to greater vengeance among those new to power.
Researchers at Intermountain Medical Center Heart Institute discovered a link between high RDW levels and increased risk of depression in heart patients. Elevated RDW is associated with poor outcomes, including heart attacks and death, and may indicate anemia or other underlying conditions.
A study led by CNIO confirms the therapeutic potential of inhibiting Aurora-A in cancer treatment, revealing an increase in dead and senescent cells and premature aging. The research proposes studying cell nucleus volume as a tool for evaluating anti-cancer drug efficiency.
A study from Duke University Medical Center found that rural and southern US counties have low rates of annual CPR training. These communities are often far from hospitals, and lower CPR training rates contribute to higher heart disease mortality rates.
The Synthetic Biology Project at Woodrow Wilson International Center has been awarded a €4 million EU grant to foster responsible governance of synthetic biology. The project aims to initiate mutual learning among stakeholders from science, industry, and civil society.
Aalto University has been selected to lead an international research centre of excellence in Arctic shipping and operations, supported by the Lloyd's Register Foundation. The centre will focus on risk management in Arctic operations over five years, with Aalto strengthening its research in Arctic technology.
A recent study led by Lund University researchers has found that therapeutic hypothermia treatment for cardiac arrest is just as effective at a body temperature of 36°C as it is at 33°C, without the increased risk of side effects. This finding has important implications for patient rehabilitation and recovery after cardiac arrest.
A University of Michigan study found that reminder letters sent to parents of children with chronic conditions increased vaccination rates. The Michigan Care Improvement Registry was used to identify high-risk kids and prompt vaccinations during the 2009-10 H1N1 pandemic.
A study of 60 people aged 45 years or older found that accelerated surgery within six hours reduced major complications by 30% compared to standard care. Faster surgery may be better for hip fractures, say researchers at McMaster University.
Two studies on breast MRI usage found a significant increase in its use for diagnostic evaluations and screenings, particularly among high-risk women. The studies also revealed disparities in the use of breast MRI, with some groups receiving more frequent screening than others.
Researchers at UCLA have identified the medial prefrontal cortex as a key player in how anxious youths interpret neutral information. Increased activity in this brain region is observed when teenagers with anxiety disorders view faces that might be perceived as threatening, highlighting the importance of context in shaping their percep...
Researchers discovered bacteria can take up small fragments of damaged DNA, including ancient DNA, and integrate it into their genome. This process, called Anachronistic Evolution, has significant implications for the spread of antibiotic resistance in hospitals.
Global carbon emissions are set to reach a record 36 billion tonnes in 2013, with the US and EU also major contributors. The growth in coal is driving most of the increase, and cumulative CO2 emissions since 1870 are expected to exceed 200 trillion tonnes.
A national study published in NEJM found that comprehensive medical therapy is as effective as renal stenting in preventing clinical events for patients with renal artery stenosis. The study, led by Rhode Island Hospital researchers, involved over 947 participants and followed them for up to seven years.
A Mayo Clinic-led study has found that two commonly used drugs, low-dose dopamine and low-dose nesiritide, do not improve kidney function in hospitalized acute heart failure patients. The study analyzed data from 360 patients with kidney dysfunction and showed no significant improvement in urine volume or serum cystatin-C levels.
A Princeton-Harvard study found that Harlem Children's Zone Promise Academy Charter School students are 49% more likely to attend college and 71% less likely to become teen mothers compared to their public school peers. The study also showed improved test scores for poor, urban students.
The American Gastroenterological Association has expanded its corporate grant with Covidien to advance gastroenterology research and improve patient outcomes. The AGA-Covidien Research and Development Pilot Award in Technology will provide funding for innovative devices, diagnostic tools, and technologies.
Researchers at Berkeley Lab have revealed the origins of a 'stripe phase' in a material linked to superconductivity. By studying ultrafast optical techniques and X-ray scattering, they found that electrons become concentrated in stripes throughout the material, leading to an energy threshold for electrical currents.
A new study by Duke University professor E. Jane Costello found that more than half of adolescents with psychiatric disorders receive no treatment. Treatment rates vary greatly depending on the disorder and provider, with teens suffering from phobias or anxiety disorders being the least likely to be treated.
A University of Pittsburgh professor's research shows that competition can increase the saving behavior of the working homeless. The study found that residents who participated in a competition offered a prize of $100 for saving the largest percentage of their pay increased their savings rate by 33%.
Researchers at Penn University have developed a new technique for fast and sensitive DNA sequencing using graphene nanoribbons with nanopores. The team's innovative method allows for faster measurement of DNA sequences, as the electrical current flowing through the ribbon is modulated by each base.
Researchers used genomic sequences to reconstruct metabolic repertoire for each strain, predicting its environmental niche. The analysis could help develop ways to control deadly E. coli infections and identify new strains.
Researchers at Tel Aviv University demonstrate hyperbaric oxygen therapy can revive brain functions and improve life quality for mild TBI patients. The treatment improved cognitive function, memory restoration, and language use, offering a new hope for millions of victims.
A recent study published in Breast Cancer Research and Treatment found obesity to be a major risk factor for developing basal-like breast cancer in women. Researchers at the University of North Carolina discovered that obesity alters the cellular microenvironment of mammary glands, promoting the growth of basal-like tumors.
Researchers have found a dramatic decrease in sea ice cover over the last 150 years, with annual growth increments doubling since the Little Ice Age. This discovery provides new insights into climate reconstruction and extends knowledge back to the mid-1800s.
A study found that patients who received personalized attention from a pharmacist improved their medication adherence rates, with 89.3% adherent in the intervention group compared to 73.9% in usual care. However, there was no significant difference in achieving blood pressure and low-density lipoprotein cholesterol level targets.
Researchers at MU School of Medicine found a new protocol using preventive blood thinners reduces life-threatening blood clots in brain-injured patients. The study compared outcomes between 107 and 129 patients treated with or without the medication, showing zero instances of deep-venous clotting among those who received it.