Add BrightSurf on Google Email

Science News for October 30, 2014


Study shows vibrating insoles could reduce falls among seniors

Researchers found that vibratory stimulation applied to the soles of the feet using piezoelectric technology significantly improves balance by reducing postural sway and gait variability. The study participants showed a persistent improvement in performance on timed tests, indicating potential benefits for fall prevention.

SourcePeters Communications·JournalArchives of Physical Medicine and Rehabilitation·DateOct 30, 2014

Link seen between seizures and migraines in the brain

Seizures and migraines have long been considered separate events, but a new study reveals a surprising connection between the two. By applying fundamental physics principles to an older theory of brain electricity, researchers found that seizures and spreading depression are part of a spectrum of nerve cell behavior.

Making lab-grown tissues stronger

Researchers at UC Davis have developed a method to toughen up engineered cartilage and keep natural tissues strong outside the body. By depriving native or engineered cartilage of oxygen and using an enzyme called lysyl oxidase, they found that cross-linking occurs, making the material stronger.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateOct 30, 2014

Doubt cast over air pollution link between childhood leukemia and power lines

A new study published in Journal of Radiological Protection found little evidence to support the 'corona-ion hypothesis', which suggests a possible link between air pollution from power lines and childhood leukemia. Researchers used data from over 7,000 children born near high-voltage overhead power lines and found no increased risk of...

SourceIOP Publishing·JournalJournal of Radiological Protection·DateOct 30, 2014

Biology meets geometry

Researchers describe the Terasaki ramps in the endoplasmic reticulum as spiral structures that connect parallel sheets, allowing for high density of ribosomes. This geometry is stable and minimizes energy, consistent with the laminar structure of the stacks.

SourceUniversity of California - Santa Barbara·JournalPhysical Review Letters·DateOct 30, 2014

Independent safety investigation needed in the NHS

A new agency would investigate major failures and provide public explanation, improving system-wide learning. The NHS lacks a consistent approach to investigating safety issues, relying on costly one-off inquiries.

SourceSAGE·JournalJournal of the Royal Society of Medicine·DateOct 30, 2014

Genetic factors behind surviving or dying from Ebola shown in mouse study

A new mouse model reveals that genetic factors play a significant role in the severity of Ebola disease. Research suggests that certain genetic lines of mice are more resistant to the virus, while others are highly susceptible to severe illness and death. The findings could lead to rapid development of candidate therapeutics and vaccines.

Four new dragon millipedes found in China

A team of speleobiologists has described four new species of dragon millipedes from southern China, highlighting their distinctive spiky bodies. The discovery sheds light on the genetic diversity of these bizarre creatures, with China holding the highest recorded number of species in the genus Desmoxytes.

SourcePensoft Publishers·JournalZooKeys·DateOct 30, 2014

Air quality and unconventional oil and gas sites

A community-based study found air pollutants released by unconventional oil and gas production exceed recommended levels in the US, with hazardous chemicals like benzene, hydrogen sulfide, and formaldehyde detected. The study highlights the need for improved air-quality monitoring programs near these sites.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateOct 30, 2014

Ion adsorption matter in biology

A new systematic study of lipid membrane-electrolyte interactions provides insights into biological cell function and potential applications in medical diagnostics. The research uses liposomes to model biological membranes and demonstrates the role of ion adsorption in modulating membrane electrical characteristics.

SourceSpringer·JournalThe European Physical Journal E·DateOct 30, 2014

Seeing dinosaur feathers in a new light

Dinosaurs had highly developed color vision, including the ability to see ultraviolet light, which likely contributed to the evolution of feathers. This discovery sheds new light on the origin of feathers and their role in dinosaur communication and mating.

SourceUniversity of Bonn·JournalScience·DateOct 30, 2014

Why scratching makes you itch more

Research from scientists at Washington University School of Medicine found that scratching causes the brain to release serotonin, which intensifies itch sensation. Blocking serotonin's communication with nerve cells may help break the itch-scratch cycle.

SourceWashU Medicine·JournalNeuron·DateOct 30, 2014

Frailty increases kidney transplant recipients' risk of dying prematurely

A new study published in the American Journal of Transplantation found that frailty significantly increases the risk of premature death in kidney transplant recipients. The study analyzed data from 537 patients and found that those who were classified as frail had a mortality rate twice that of non-frail patients.

SourceWiley·JournalAmerican Journal of Transplantation·DateOct 30, 2014

Screening patients at high-risk for lung cancer more likely when prmary care provider is familiar with guidelines

Research shows that primary care providers who know guideline recommendations for low-dose computed tomography (LDCT) screening are more likely to order LDCT for high-risk individuals. This knowledge gap is highlighted by a survey of over 200 primary care providers, which found that 48% knew three or more guideline components.

Identifying the source of stem cells

Researchers at Michigan State University have discovered that a specific gene, Sox2, plays a crucial role in determining the source of stem cells in mammals. By studying mouse embryos, the team found that Sox2 appears to be acting ahead of other genes traditionally identified as playing critical roles in stem cell formation.

SourceMichigan State University·JournalPLOS Genetics·DateOct 30, 2014

How 'trained immunity' mediates BCG therapy of bladder cancer

Researchers found that autophagy plays a central role in mediating the non-specific immune effects of BCG, leading to trained immunity. Monocytes from individuals with specific variants of the ATG2B gene respond with trained immunity, supporting the hypothesis that autophagy is clinically relevant.

SourcePLOS·JournalPLOS Pathogens·DateOct 30, 2014

Lord of the microrings

Scientists at Berkeley Lab have developed a unique microring laser cavity that can produce single-mode lasing even from conventional multi-mode laser cavities. This breakthrough holds implications for optical metrology, interferometry, data storage, spectroscopy, and communications.

Sadness lasts longer than other emotions

A study found that sadness lasts up to 240 times longer than shame, surprise, or boredom, likely due to its association with significant life events. Researchers discovered that emotions associated with low event importance have shorter durations.

SourceSpringer·JournalMotivation and Emotion·DateOct 30, 2014

Young adults ages 18 to 26 should be viewed as separate subpopulation in policy and research

The Institute of Medicine and National Research Council report highlights the critical period of young adulthood, characterized by brain maturation and increasing health risks. The committee calls for improved educational, economic, social, and health supports to promote equal opportunities and reduce disparities among young adults.

Experts recommend tumor removal as first-line treatment for acromegaly

Acromegaly is usually caused by a non-cancerous tumor in the pituitary gland, leading to excessive growth hormone production and various health complications. The Endocrine Society recommends surgery as the primary therapy for most patients, offering an opportunity to examine the tumor sample and immediately lower growth hormone levels.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateOct 30, 2014

Heart's own immune cells can help it heal

Researchers found that beneficial immune cells originate in the embryonic heart and can promote regeneration, while harmful macrophages come from the bone marrow. Blocking the influx of bone marrow-derived macrophages protects the resident macrophages, allowing them to promote repair and reduce inflammation.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateOct 30, 2014

Can parents make their kids smarter?

A new study by Florida State University professor Kevin Beaver found that parenting-related behaviors, such as reading bedtime stories and eating family dinners, have no influence on verbal intelligence. The study used an adoption-based research design to rule out genetic transmission as the reason for any potential effects.

SourceFlorida State University·JournalIntelligence·DateOct 30, 2014

Harnessing error-prone chips

Researchers at MIT have developed a new system, Chisel, that enables programmers to prioritize energy savings over computational accuracy in certain applications. The system uses a tool to help programmers evaluate the acceptable level of error and automatically assigns instructions to unreliable hardware components.

Navigation and location can occur without external cues

Researchers at The University of Queensland found that animal brains can use a memory map to estimate location without external cues. Even in complete disorientation, the brain can accurately estimate location by self-motion cues such as walking. The study highlights the importance of understanding how the brain processes spatial infor...

SourcePLOS·JournalPLOS Computational Biology·DateOct 30, 2014