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Science News for January 12, 2015


New strains of parasites identified

A recent study by Ria Ghai has identified three genetically distinct groups of whipworms, with only one being transmissible between humans and non-human primates. This discovery has significant public health implications and highlights the need for conservation efforts to protect endangered species.

SourceMcGill University·JournalPLOS Neglected Tropical Diseases·DateJan 12, 2015

Sex and the single evening primrose

Researchers found that sexually reproducing species are healthier and less likely to accumulate deleterious mutations over time. The study used the evening primrose plant as a model, comparing 30 pairs of species with different reproductive methods, revealing strong support for the theory that sex is beneficial for health in plants.

SourceUniversity of Toronto·JournalMolecular Biology and Evolution·DateJan 12, 2015

Revealing the inner workings of a molecular motor

Researchers from RIKEN Brain Science Institute have made significant strides in understanding the mechanism of dynein's movement along microtubules. The study found that specific amino acid residues on the microtubule structure play a crucial role in activating the dynein motor, enabling directional movement and cargo transport.

SourceRIKEN·JournalJournal of Cell Biology·DateJan 12, 2015

Can your smartphone help you exercise?

A new study found that only 39 out of 93 possible behavior change techniques were used in top-ranked fitness apps, with social support and feedback being the most common. The study suggests that users should consider their individual needs when selecting an app to increase physical activity.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateJan 12, 2015

CNIO researchers discover 1 of the genetic pieces of bladder cancer

Researchers at CNIO discovered that Notch genes act as tumour suppressors in bladder cancer, clarifying their role and providing clues for understanding their dual function. The study cautions against using therapeutic strategies based on Notch deactivation due to potential increased risk of developing squamous-type tumours.

SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalJournal of Clinical Investigation·DateJan 12, 2015

$375 billion wasted on billing and health insurance-related paperwork annually: Study

A recent study published in BMC Health Services Research estimates that medical billing paperwork and insurance-related red tape cost the US economy approximately $471 billion in 2012. The researchers suggest that adopting a simplified, single-payer system of financing health care could result in savings of at least $375 billion annually.

SourcePhysicians for a National Health Program·JournalBMC Health Services Research·DateJan 12, 2015

Computers using digital footprints are better judge of personality than friends and family

A new study reveals that computers can make accurate judgments about personalities better than most people, using digital signals like Facebook Likes. The researchers analyzed data from over 86,000 volunteers and found that computers could predict personality traits with greater accuracy than human judges, except for spouses.

SourceUniversity of Cambridge·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

New superconducting hybrid crystals developed at University of Copenhagen

Researchers have developed a new type of nanowire crystal that combines semiconducting and metallic materials, exhibiting superconducting properties at low temperatures. The breakthrough could play a central role in the development of future electronics, including chips with billions of identical semiconductor-metal nanowire hybrids.

High hepatitis C cure rate seen in NIH-led trial of 6-week oral drug regimens

A clinical trial conducted by the NIH found that 38 out of 40 volunteers with HCV infections were cured after receiving a combination of three direct-acting oral drugs for six weeks. This short duration therapy may prove relevant for global elimination of hepatitis C, where simple and well-tolerated treatment is required.

Beyond the bandages: Study finds pediatric trauma nurses know about trauma-informed care

A study by Children's Hospital of Philadelphia reveals that pediatric trauma nurses are knowledgeable about trauma-informed care, but need more training to address the emotional needs of patients and their families. The survey found that over 90% of nurses recognize the importance of psychosocial support, but few report assessing a chi...

SourceChildren's Hospital of Philadelphia·JournalJournal of Pediatric Nursing·DateJan 12, 2015

The mystery of the Alpine long-eared bat

A research group studied the Alpine long-eared bat's geographical distribution and found five vertebrates with similar distributions, including birds and rodents. These species share similar ecological features, such as using rocks for hiding and open spaces for foraging, and are restricted to mountainous areas due to topography.

SourceUniversity of the Basque Country·JournalEuropean Journal of Wildlife Research·DateJan 12, 2015

Patients rarely learn of at-home provider quality data

A new study reveals that hospital case managers rarely provide patients with quality data on at-home care providers, despite state and federal reports being available online. The researchers found that only a few case managers were aware of these reports, and even fewer shared this information with patients.

SourceBrown University·JournalJournal of General Internal Medicine·DateJan 12, 2015

Researchers find BPA and BPS affect embryonic brain development in zebrafish

A study published in the Proceedings of the National Academy of Sciences found that bisphenol A (BPA) and bisphenol S (BPS) can cause alterations in brain development leading to hyperactivity in zebrafish. The chemicals were shown to increase the number of neurons born too soon, resulting in problems with neural connections and circuits.

SourceUniversity of Calgary·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

Do viruses make us smarter?

Researchers found that endogenous retroviruses, constituting around 5% of human DNA, regulate gene expression and have an important regulatory role in the brain. The study suggests that viruses take a firm hold on cellular machinery over evolution, leading to complex brain functions.

SourceLund University·JournalCell Reports·DateJan 12, 2015

Environmental health benefits inspire people to cut back on electricity

A UCLA study found that environmental messages can significantly reduce energy use, with participants reducing their electricity consumption by an average of 8% after receiving weekly emails highlighting the health and environmental benefits. The most effective message was one that combined both ideas, reminding people that energy redu...

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

Graffiti: Art or eyesore?

A new study by Michigan State University sociologist Toby Ten Eyck analyzed news coverage of graffiti in US publications, finding most articles linked it to crime and blight. However, some stories highlighted graffiti as an expression of solidarity or social commentary.

SourceMichigan State University·JournalThe Social Science Journal·DateJan 12, 2015

UCLA-led study shows how meltwater on Greenland's ice sheet contribute to rising sea levels

A new UCLA-led study reveals a vast network of little-understood rivers and streams flowing on top of the Greenland ice sheet, potentially responsible for at least as much sea-level rise as other sources combined. The research found that meltwater from these waterways can flush their entire volume in less than two days, contributing to...

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

A honey bee hive tells all

A research team developed a new method using DNA metabarcoding to analyze pollen and uncovered the secret life of bees. This technique identified twice as many plant families than microscopic analysis and provided deeper insights into bee foraging behavior.

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateJan 12, 2015

Can racial injustice be settled out of court?

Researchers recommend increasing documentation of racial disparities in policing and trial outcomes to prevent inequality. They also suggest implementing bias training and promoting institutional diversity to reduce racial biases in legal decision-making.

SourceSAGE·JournalPolicy Insights from the Behavioral and Brain Sciences·DateJan 12, 2015

Vision system for household robots

Researchers at MIT develop an algorithm that allows household robots to recognize four times as many objects as traditional methods, reducing misidentifications. The new approach uses a representative sampling technique, sampling hypotheses across successive images, and evaluating them more efficiently.

SourceMassachusetts Institute of Technology·JournalThe International Journal of Robotics Research·DateJan 12, 2015

Family income, child behavior factors in legal disputes about kids with autism

A recent survey of parents found that families with higher incomes are more likely to resort to litigation when disagreeing with school officials about their children's education. The study also found links between the strength of parent-school partnerships and greater use of mediation or due process.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Autism and Developmental Disorders·DateJan 12, 2015

Researchers identify new gene mutations linked to colorectal cancer in African-Americans

Researchers at Case Western Reserve University have discovered new gene mutations specific to colon cancers in African Americans, offering hope for targeted treatments. The study found that these distinct molecular differences may hold the key to reducing devastating effects of the disease on this population.

SourceCase Western Reserve University·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

Study reveals potential of ultrasound for detecting potential heart attacks and stroke before symptoms arise in both developed and developing countries

A portable ultrasound study found that nearly a quarter of participants had plaques in at least one artery, with added iliofemoral examination increasing identification by 5%. The technology showed promise for detecting subclinical atherosclerosis before symptoms arise, potentially preventing disease through preventive treatment.

SourceWorld Heart Federation·JournalGlobal Heart·DateJan 12, 2015

People watching: Different brain pathways responsible for person, movement recognition

A study published in PNAS found that individuals with prosopagnosia can still recognize human movements, engaging different brain mechanisms. The research team used point-light displays to test patients with brain damage preventing facial recognition, revealing a neural process for comprehending actions independent of the actor.

SourceCarnegie Mellon University·JournalProceedings of the National Academy of Sciences·DateJan 12, 2015

Interrupting cycle of violence before young perpetrators and their victims reach adulthood

Researchers identified four promising approaches to prevent intimate partner violence and sexual violence among adolescents, including school-based interventions, psychological support interventions, community-based interventions, and parenting interventions. These strategies show promise in preventing violence in high-income countries...

SourceGeorgetown University Medical Center·JournalJournal of Adolescent Health·DateJan 12, 2015