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Science News Archive January 2014 - Page 19


Page 19 of 28

Mitochondrial genes matter!

Research at Uppsala University found that rare mitochondrial genes are associated with better survival and reproductive outcomes in a common beetle species. The study suggests that these genetic variations play a crucial role in maintaining genetic diversity.

SourceUppsala University·JournalEcology Letters·DateJan 14, 2014

Panel at odds over new BP guidelines

Panel members of the Institute of Medicine's Eighth Joint National Committee opposed relaxing systolic blood pressure targets to 150 mmHg, citing insufficient evidence. The decision may reduce antihypertensive treatment intensity, potentially reversing declines in cardiovascular disease mortality rates.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJan 13, 2014

Tricky protein may help HIV vaccine development

Researchers at Duke University have determined the structure of a key part of the HIV envelope protein, gp41 membrane proximal external region (MPER), which previously eluded detailed structural description. This discovery will help focus HIV vaccine development efforts.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Enforcement and anti-poaching measures set to fail

Researchers argue that record-level funding is not enough to protect endangered species, highlighting the need for alternative approaches such as community-based conservation and sustainable trade. The study calls for a shift in focus from enforcement alone to more comprehensive solutions to combat poaching.

SourceUniversity of Kent·JournalConservation Letters·DateJan 13, 2014

Debunking the sixth sense

A study published in PLOS ONE found that observers could detect changes in a person's appearance even when they couldn't visually identify the change. The researchers showed that this ability was not due to extrasensory perception or a sixth sense.

SourceUniversity of Melbourne·JournalPLOS ONE·DateJan 13, 2014

Most students exposed to school-based food commercialism

A study by Yvonne Terry-McElrath and colleagues found that most elementary, middle, and high school students are exposed to food commercialism at school. The percentage of schools with exclusive beverage contracts decreased from 2007 to 2012, but fast food remained available in many schools.

SourceJAMA Network·JournalJAMA Pediatrics·DateJan 13, 2014

Bragging rights: MSU study shows that interventions help women's reluctance to discuss accomplishments

A study by Jessi L. Smith and Meghan Huntoon found that gender norms about modesty contribute to women's reluctance to brag about their achievements. Interventions can help women communicate effectively about their successes. The research suggests that cultural shifts are needed, but practical strategies like promoting female friends' ...

SourceMontana State University·JournalPsychology of Women Quarterly·DateJan 13, 2014

Hang up or hold on?

A recent study by University of Chicago Booth School of Business professors provides a more accurate approach to modeling caller patience than ever before. This insight can help call centers design better systems, fine-tune existing ones and negotiate smarter contracts for outsourcing services.

SourceUniversity of Chicago Booth School of Business·JournalManagement Science·DateJan 13, 2014

How fruit flies detect sweet foods

Researchers at UC Riverside have discovered how the common fruit fly detects sweet compounds, revealing a new understanding of taste receptors in insects. The study's findings hold promise for developing strategies to block these receptors, potentially helping to control disease-carrying mosquitoes and other pests.

SourceUniversity of California - Riverside·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Passing bowls family-style teaches day-care kids to respond to hunger cues, fights obesity

A University of Illinois study found that family-style meals help children develop healthy eating habits and recognize their body's hunger cues. The research suggests that Head Start centers are in better compliance with nutrition guidelines than other child-care centers.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of the Academy of Nutrition and Dietetics·DateJan 13, 2014

Americans with and without children at home report similar life satisfaction but more positive and negative emotions

Despite initial expectations, Americans with and without children at home exhibit similar levels of life satisfaction when controlling for factors such as education, income, health, and religiosity. However, parents experience more emotional highs and lows than nonparents, including higher rates of happiness, sadness, worry, and stress.

SourcePrinceton School of Public and International Affairs·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Primates: Now with only half the calories!

A study published in the Proceedings of the National Academy of Sciences found that primates, including humans, expend only half the daily energy needed by other mammals. This slow metabolism accounts for their prolonged childhoods, infrequent reproduction, and extended lifespans.

SourceLincoln Park Zoo·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Weighing particles at the attogram scale

Researchers create a system that can weigh particles as small as 0.85 attograms, opening up new possibilities for studying synthetic nanoparticles and biological components of cells. The device, known as a suspended microchannel resonator (SMR), uses a miniaturized sensor to measure the mass of particles flowing through a narrow channe...

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

New hope for migraine sufferers

A new study confirms that candesartan is just as effective as propranolol in preventing migraine attacks, offering a new treatment option for patients who have not responded to traditional medications. The study found that over 20% of patients experience relief even with a placebo, highlighting the potential of candesartan as a more co...