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ATP hydrolysis energy explained through large-scale hybrid quantum/classical simulations

EurekAlert! - Mar, 03/21/2017 - 22:00
Researchers have succeeded in unveiling the microscopic mechanism of AHE release in water.

Discovery of a novel chromosome segregation mechanism during cell division

EurekAlert! - Mar, 03/21/2017 - 22:00
When cells divide, chromosomes need to be evenly segregated. This equal distribution is important to accurately pass genetic information to the next generation. Abnormal segregation can cause cell death or diseases like Down syndrome and cancer. Filamentous spindle fibers must bind to the chromosome centromere to divide equally. For the spindle fiber to be correctly joined, the chromosome must have heterochromatin. However, the mechanism for forming this structure has not been sufficiently clarified.

People afraid of robots much more likely to fear losing their jobs, suffer anxiety

EurekAlert! - Mar, 03/21/2017 - 22:00
'Technophobes' -- people who fear robots, artificial intelligence and new technology that they don't understand -- are much more likely to be afraid of losing their jobs due to technology and to suffer anxiety-related mental health issues, a Baylor University researcher says.

Brief module effective in teaching hemorrhage control basics to staff in a large workplace

EurekAlert! - Mar, 03/21/2017 - 22:00
A medical team has developed a way to effectively provide a large group of people with basic knowledge and skills to locate and use bleeding control equipment to stop life-threatening bleeding in severely injured people.

Study suggests new way to prevent vision loss in diabetics and premature babies

EurekAlert! - Mar, 03/21/2017 - 22:00
Researchers at Bascom Palmer Eye Institute, part of the University of Miami Miller School of Medicine, have identified a new molecule that induces the formation of abnormal blood vessels in the eyes of diabetic mice. The study, 'Secretogranin III as a disease-associated ligand for antiangiogenic therapy of diabetic retinopathy,' which will be published March 22 in The Journal of Experimental Medicine, suggests that inhibiting this molecule may prevent similarly aberrant blood vessels from damaging the vision of not only diabetics, but also premature infants.

Use of mobile app reduces number of in-person follow-up visits after surgery

EurekAlert! - Mar, 03/21/2017 - 22:00
Patients who underwent ambulatory breast reconstruction and used a mobile app for follow-up care had fewer in-person visits during the first 30 days after the operation without affecting complication rates or measures of patient-reported satisfaction, according to a study published online by JAMA Surgery.

How does spousal suicide affect bereaved spouse mentally, physically?

EurekAlert! - Mar, 03/21/2017 - 22:00
People bereaved by the suicide of a spouse were at increased risk for mental and physical disorders, suicidal behavior, death and adverse social events, according to a nationwide study based on registry data conducted in Denmark and published online by JAMA Psychiatry.

Loss of spouse or partner to suicide linked to physical, mental disorders

EurekAlert! - Mar, 03/21/2017 - 22:00
People who lose a partner to suicide are at increased risk for a number of mental and physical disorders, including cancer, depression, herniated discs and mood disorders than those in the general population, new Johns Hopkins Bloomberg School of Public Health research suggests.

Combating wear and tear

EurekAlert! - Mar, 03/21/2017 - 22:00
A team of researchers led by University of Utah bioengineering professors has discovered that damage to collagen, the main building block of all human tissue, can occur much earlier at a molecular level from too much physical stress. This could be especially helpful for some who want to know earlier if they are developing diseases such as arthritis or for athletes who want to know if repeated stress on their bodies is taking a toll.

How birthplace and education influence marriage choices in China

EurekAlert! - Mar, 03/21/2017 - 22:00
Many people choose their spouse based on shared values and interests. But in China, another important, relatively unknown factor plays a role: hukou, and it may be contributing to growing socioeconomic disparity in the country's largest city, according to a new UBC study.

The social costs of smell loss in older women

EurekAlert! - Mar, 03/21/2017 - 22:00
A new study of older US adults conducted by researchers from the Monell Center and collaborating institutions reports that a woman's social life is associated with how well her sense of smell functions. The study found that older women who do less well on a smell identification task also tend to have fewer social connections.

Rare-earths become water-repellent only as they age

EurekAlert! - Mar, 03/21/2017 - 22:00
Surfaces that have been coated with rare earth oxides develop water-repelling properties only after contact with air. Even at room temperature, chemical reactions begin with hydrocarbons in the air. In the journal Scientific Reports, researchers from the University of Basel, the Swiss Nanoscience Institute and the Paul Scherrer Institute report that it is these reactions that are responsible for the hydrophobic effect.

Google Street View cars are eyes on the ground for urban methane leaks

EurekAlert! - Mar, 03/21/2017 - 22:00
A set of Google Street View mapping cars, specially equipped with cutting-edge methane analyzers, are allowing Colorado State University researchers to 'see' invisible methane leaks from natural gas lines beneath our streets. The technical and computational challenges of measuring methane, and the complex methodologies used to collect, analyze and publicize the data, are detailed in a new paper in the journal Environmental Science and Technology.

Scientists partner with Google Earth Outreach to analyze methane leaks in US cities

EurekAlert! - Mar, 03/21/2017 - 22:00
Finding and fixing natural gas leaks is a persistent challenge for utilities across the country. In addition to the serious safety considerations, leaking natural gas -- which is mostly methane -- also contributes the potent greenhouse gas to the atmosphere. To help address this problem, scientists teamed up with Google Earth Outreach to outfit Street View cars with methane analyzers to map leaks. They report their findings in the ACS journal Environmental Science & Technology.

A new species of hard coral from the World Heritage-listed Lord Howe Island, Australia

EurekAlert! - Mar, 03/21/2017 - 22:00
The discovery of a new species of hard coral, found on Lord Howe Island, suggests that the fauna of this isolated location in the Tasman Sea off south eastern Australia is even more distinct than previously recognised. Even though the World Heritage-listed site has been long known for its biodiversity, the new species, recently described in the open access journal ZooKeys, is the first coral known to live exclusively in the region.

People's romantic choices share characteristics, but for different reasons

EurekAlert! - Mar, 03/21/2017 - 22:00
The people one dates share many similarities -- both physically and personality-wise -- a new University of California study has found.

How physical activity and sedentary time affect adolescents' bones

EurekAlert! - Mar, 03/21/2017 - 22:00
A large prospective study in 309 adolescent boys and girls underscores the importance of physical activity for developing bone strength during growth. Adolescents who participated in moderate to intense physical activity during growth spurt years exhibited greater bone mass in areas that contribute to superior bone strength. The study also found mixed effects of sedentary time.

How children's temperament and environment shape their problem-solving abilities

EurekAlert! - Mar, 03/21/2017 - 22:00
A new study indicates that early experiences of environmental harshness, in combination with a child's temperament, can influence later problem-solving abilities.

Significant increase in number of women tested for BRCA gene, but many high-risk patients still missing out

EurekAlert! - Mar, 03/21/2017 - 22:00
Previously, mainly women with a history of cancer were referred for genetic testing, but as awareness has grown, more low-risk women are undergoing BRCA testing. A new study in the American Journal of Preventive Medicine found that the proportion of women without a history of cancer who underwent BRCA testing rose sharply from 24.3% in 2004 to 61.5% in 2014.

Biologic treatments for inflammatory bowel disease help heal the intestine

EurekAlert! - Mar, 03/21/2017 - 22:00
Although anti-inflammatory treatments are quite effective at reducing symptoms in patients with Crohn's disease and ulcerative colitis, the mucosal lining of the intestine often remains ulcerated, and many patients still ultimately require surgery. Because of this, the goal of treatment is shifting towards mucosal healing rather than just symptom relief.

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