Add BrightSurf on Google Email

Science News Archive July 2015 - Page 4


Page 4 of 34

First detection of lithium from an exploding star

Researchers have detected lithium in material ejected by a nova, resolving a long-standing puzzle about its abundance in young stars. The finding sheds light on the chemical evolution of the Milky Way and could inform models of the Big Bang.

SourceESO·JournalThe Astrophysical Journal Letters·DateJul 29, 2015

Playing 'tag' with pollution lets scientists see who's 'it'

Researchers use climate model to tag soot sources and track its impact on the Tibetan Plateau, finding that soot from wildfires in India warms the region more than greenhouse gases. The study suggests that cutting emissions from central Asia's fossil fuel burning can have a significant impact on reducing soot levels on the plateau.

SourceDOE/Pacific Northwest National Laboratory·JournalAtmospheric Chemistry and Physics·DateJul 29, 2015

Detecting small metallic contaminants in food via magnetization

Researchers at Toyohashi University of Technology have developed a practical magnetic metallic contaminant detector using three high-Tc RF superconducting quantum interference devices for food inspection. The detection technique is based on recording the remnant magnetic field of a contaminant, providing a safe and high-resolution method.

SourceToyohashi University of Technology (TUT)·JournalIEEE Transactions on Applied Superconductivity·DateJul 29, 2015

Intracellular microlasers could allow precise labeling of a trillion individual cells

Researchers have induced structures within cells to produce laser light, emitting specific wavelengths that allow for precise labeling and measurement of individual cells. This technology has the potential to tag up to a trillion cells, matching the estimated number of human body cells, enabling applications in basic research and disea...

SourceMassachusetts General Hospital·JournalNature Photonics·DateJul 29, 2015

Early prosocial behavior good predictor of kids' future

A nearly 20-year study found that kindergarteners' social-emotional skills are a significant predictor of their future success. Students demonstrating better prosocial behavior were more likely to graduate from college, be gainfully employed, and avoid arrest.

SourcePenn State·JournalAmerican Journal of Public Health·DateJul 29, 2015

Could a sugar tax help combat obesity?

Experts weigh in on whether a sugar tax can help combat obesity, with some arguing it's a necessary step to reduce consumption and others claiming it would be economically ineffective. A sugar tax on all products may stimulate reformulated products, while taxes on specific food categories could change diets and improve health.

SourceBMJ Group·JournalThe BMJ·DateJul 29, 2015

Can we restart the heart?

San Diego State University researchers have developed a way to use biotechnology to rejuvenate cardiac progenitor cells, which replicate indefinitely into new heart cells. By overexpressing an enzyme associated with cancer cell growth, they've shown promise in increasing cell proliferation and lifespan in mice, as well as human tissue.

SourceSan Diego State University·JournalBiological Chemistry·DateJul 29, 2015

Shoring up Tor

Researchers at MIT and QCRI demonstrate a vulnerability in Tor's design, allowing an adversary to infer a hidden server's location or the source of information reaching a user. However, they also propose defenses, which are being evaluated for inclusion in future versions of the Tor software, to prevent such attacks.

People walk slower, swerve when texting while distracted

A study found that adults who text while being cognitively distracted exhibit a more cautious gait, including increased obstacle clearance and decreased ability to walk in a straight line. The researchers suggest this adaptation may help prevent accidents when faced with cognitive challenges.

SourcePLOS·JournalPLOS ONE·DateJul 29, 2015

Real-time imaging of lung lesions during surgery helps localize tumors and improve precision

A new study reports that a targeted molecular contrast agent can be used to cause lung adenocarcinomas to fluoresce during pulmonary surgery, enabling real-time optical imaging and precise visualization of tumor margins. The technique showed promise in localizing tumors and detecting metastatic cancer cells with high accuracy.

SourceAmerican Association for Thoracic Surgery·JournalJournal of Thoracic and Cardiovascular Surgery·DateJul 29, 2015

Aquariums deliver health and wellbeing benefits

New research published in Environment & Behavior found that watching aquariums and fish tanks can improve physical and mental wellbeing. The study showed noticeable reductions in blood pressure and heart rate, with higher numbers of fish helping to maintain attention for longer.

SourceUniversity of Exeter·JournalEnvironment and Behavior·DateJul 29, 2015

Just say 'No' to drugs -- in water

A 16-year-old scientist has created a solution to remove pharmaceutical drugs from contaminated water, using a plastic adsorbent that can capture the chemicals. The innovative technique, tested over six years, shows promise for scaling up and applying it in real-world water treatment.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJul 29, 2015

Experts recommend tumor removal as first-line treatment for Cushing's syndrome

The Endocrine Society recommends tumor removal as the first-line treatment for endogenous Cushing's syndrome. This approach is optimal because it preserves the hypothalamic-pituitary-adrenal axis, which is crucial for the body's central stress response. Other treatment options include medication and radiation therapy.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJul 29, 2015

Failed stars host powerful aurora displays

Researchers discovered that brown dwarf stars, which are difficult to detect and classify, host powerful auroras similar to Earth's display. The study used radio and optical telescopes to observe a brown dwarf 20 light years away, providing evidence that these stars act like supersized planets.

SourceUniversity of Sheffield·JournalNature·DateJul 29, 2015

An imbalance of cellular bioenergetics in pancreatic beta-cells links to type 2 diabetes

Research demonstrates impaired activation of mitochondrial energy metabolism in patients with type 2 diabetes, leading to decreased insulin secretion. A novel fluorescence microscopic assay reveals a subtle disharmony between bioenergetic supply and demand pathways, suggesting a shift towards systems-level approaches to fight the disease.

SourceBuck Institute for Research on Aging·JournalEndocrinology·DateJul 29, 2015

Research with bite

A new study reveals that the distinctive, saw-like tooth structure of theropod dinosaurs enabled them to effectively process food, contributing to their success as predators. The discovery sheds light on the evolution of dinosaur dentition and has implications for our understanding of these ancient creatures.

SourceUniversity of Toronto·JournalScientific Reports·DateJul 28, 2015

New treatment may help neonatal liver disease associated with parenteral nutrition

A new study suggests that exogenous glucagon-like peptide 2 (GLP-2) treatment can improve the excretion of toxic bile acids and stimulate liver growth in neonatal pigs with parenteral nutrition-associated liver disease. This finding supports a beneficial role for GLP-2 as a novel therapy in PNALD.

SourceAmerican Society for Parenteral and Enteral Nutrition (A.S.P.E.N.)·JournalJournal of Parenteral and Enteral Nutrition·DateJul 28, 2015

Early evidence suggests hybrid cochlear implants may benefit millions with common form of hearing loss

A multicenter study found that hybrid cochlear implant devices led to significant improvements in hearing and speech recognition among individuals with severely damaged high-frequency hearing. The study showed that 45 participants experienced overall improvement in their hearing and speech recognition, with some achieving profound gains.