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Science News Archive June 2015 - Page 16


Page 16 of 36

Lower heart rate variability turns women off

A new study published in Applied Psychophysiology and Biofeedback found a significant link between lower heart rate variability and sexual dysfunction in women. Women with below-average heart rate variability were more likely to report sexual arousal problems and overall sexual difficulties.

SourceSpringer·JournalApplied Psychophysiology and Biofeedback·DateJun 17, 2015

New mechanism for male infertility discovered

Researchers at Karolinska Institutet have discovered a new link between male infertility and autoimmune prostatic inflammation. The study found that the immune system reacts to a protein called transglutaminase 4 in men with autoimmune polyendocrine syndrome type 1, leading to reduced fertility.

SourceKarolinska Institutet·JournalScience Translational Medicine·DateJun 17, 2015

Men get ahead by chatting before negotiations

A study published in Basic and Applied Social Psychology found that men who engage in small talk before negotiations tend to receive more favorable outcomes. In contrast, women who make small talk are perceived less favorably and do not experience the same benefits.

SourceAmerican University·JournalBasic and Applied Social Psychology·DateJun 17, 2015

Isolation and characterization of human hepatocytes and non-parenchymal liver cells

Scientists have developed a method for isolating primary human hepatocytes and different non-parenchymal cell fractions from the same donor tissue. The isolation process involves a two-step EDTA/collagenase perfusion technique followed by Percoll density gradient centrifugation, adherence separation, and magnetic activated cell sorting.

SourceSociety for Experimental Biology and Medicine·JournalExperimental Biology and Medicine·DateJun 17, 2015

Sunscreen confusion may burn shoppers

A Northwestern Medicine study found that many people are confused by sunscreen terminology, with only 43% understanding SPF values and 7% knowing how to protect against early skin aging. This confusion can lead to inadequate protection against sunburns and premature skin aging.

SourceNorthwestern University·JournalJAMA Dermatology·DateJun 17, 2015

Massachusetts General Hospital physicians write of their experiences in Nepal earthquake relief

Two MGH physicians, Renee Salas and Annekathryn Goodman, share their experiences in Nepal earthquake relief, highlighting the challenges of wilderness medicine in remote environments. The teams worked together to provide emergency care and support, while also addressing emotional devastation inflicted on villagers.

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateJun 17, 2015

Restoring natural immunity against cancers

Researchers at Institut Pasteur successfully inhibit enzyme DPP4 to increase T lymphocyte infiltration into tumors, leading to efficient cancer cell destruction. This innovative treatment combines with existing immunotherapies to eradicate tumors in mice.

SourceInstitut Pasteur·JournalNature Immunology·DateJun 17, 2015

What's on the surface of a black hole?

Physicist Samir Mathur proposes that the surface of a black hole is not a fiery firewall but rather a benign copy machine creating an imperfect hologram. This idea counters the prevailing firewall theory and has significant implications for our understanding of the universe as a hologram.

Renewable energy from evaporating water

Researchers create two novel devices that harness the power of evaporation to generate electricity and propel self-sustaining devices. The floating piston-driven engine generates enough electricity to cause a light to flash, while the rotary engine drives a miniature car.

SourceColumbia University·JournalNature Communications·DateJun 16, 2015

Businesses don't always get what they want, but try to get what they need

A study of federal policy decisions between 1998 and 2002 found that businesses have a roughly equal chance of success as citizen groups when opposing them. However, businesses may excel in certain types of legislative battles, such as technical projects, where they draw little opposition. The researchers also found that businesses hav...

SourcePenn State·JournalInterest Groups & Advocacy·DateJun 16, 2015

Study reveals surprising truths about caregivers

The study found that almost one-third of the U.S. population are informal caregivers, with women providing more unpaid care hours than men. Elderly people were frequently cared for by spouses, not adult children. The researchers also estimated the value of unpaid care nationwide at $691 billion in 2012.

SourceUniversity of Washington·JournalPopulation and Development Review·DateJun 16, 2015

Key to quick battery charging time

Researchers at the University of Tokyo have discovered the structure and transport properties of the intermediate state in lithium-ion batteries. This finding may help accelerate battery reaction speed and significantly shorten battery charging time.

SourceUniversity of Tokyo·JournalAngewandte Chemie International Edition·DateJun 16, 2015