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Science News Archive March 2015 - Page 2


Page 2 of 38

Skin tough

Researchers at Berkeley Lab's Advanced Light Source observed the micro-scale mechanisms behind skin's remarkable tear resistance. The study identified four synergistic mechanisms in collagen that act to diminish stress concentrations associated with tears.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Communications·DateMar 31, 2015

Discovery of 2 new species of primitive fishes

Two new species of Saurichthys, a predatory ray-finned fish, have been discovered in Monte San Giorgio, Switzerland. These ancient fishes exhibit distinct skull and body shapes, suggesting different hunting styles and habitats, contributing to their evolutionary success.

SourceUniversity of Zurich·JournalZoological Journal of the Linnean Society·DateMar 31, 2015

Rodeo in liquid crystal

Researchers successfully created and controlled defect pairs in liquid crystals using optical tweezers. This achievement opens the door to controlling light flow using specific frequencies in liquid crystal photonic microdevices, with potential applications in photonics.

SourceSpringer·JournalThe European Physical Journal E·DateMar 31, 2015

Why slimy cheats don't win

A team of scientists found that cheater amoebae produce fewer high-quality spores, which survive better, suggesting a more balanced system than previously thought. This discovery has implications for developing therapies using socially successful bacteria to fight diseases.

SourceUniversity of Manchester·JournalCurrent Biology·DateMar 31, 2015

In Alzheimer's mice, memory restored with cancer drug

Researchers at Yale University have successfully restored memory and synaptic connections in Alzheimer's mice using the experimental cancer drug AZD05030. The treatment blocks damage caused by amyloid-beta plaques, a hallmark of Alzheimer's disease, and has led to the launch of human trials.

SourceYale University·JournalAnnals of Neurology·DateMar 31, 2015

Paracetamol is ineffective for lower back pain

A systematic review and meta-analysis found paracetamol to be ineffective in reducing pain intensity and improving disability or quality of life for patients with lower back pain. However, it provided small benefits in reducing pain and disability for osteoarthritis, while increasing the risk of liver function test abnormalities.

SourceBMJ Group·JournalThe BMJ·DateMar 31, 2015

3-D neural structure guided with biocompatible nanofiber scaffolds and hydrogels

Researchers have developed a method to embed patterned nanofibers in 3D hydrogel structures, guiding neurite outgrowth along the nanofibers. This technique enhances neurite length and can be used to replicate complex neural structures, offering potential for restoring damaged cells in the nervous system.

SourceInstitute of Neural Regeneration & Tissue Engineering·JournalJournal of Neural Engineering·DateMar 31, 2015

Methane monitoring method reveals high levels in Pennsylvania stream

Researchers at Penn State and USGS use a new stream-based monitoring system to detect high levels of methane in Sugar Run stream, consistent with what would be found in shale gas. The findings show that stream monitoring is an effective method for assessing the environmental impact of extracting natural gas using fracking.

SourcePenn State·JournalEnvironmental Science & Technology·DateMar 31, 2015

How a deadly fungus evades the immune system

A recent study published in Nature Communications has found that a little bit of sugar on the surface of fungal cells triggers the death of immune cells that would otherwise kill the fungus. This discovery could lead to a new therapeutic strategy for treating Candida albicans, one of the most common causes of bloodstream infections.

SourceUniversity of Toronto·JournalNature Communications·DateMar 31, 2015

Better method for forecasting hurricane season

A University of Arizona team developed a new model that improves seasonal hurricane forecast accuracy for the North Atlantic and Gulf of Mexico by 23 percent. The model incorporates wind force on the ocean and sea surface temperature over the Atlantic, reducing El Niño's impact during warm AMO phases.

SourceUniversity of Arizona·JournalWeather and Forecasting·DateMar 31, 2015

Innovative strategies needed to address the US transplant organ shortage

The US transplant organ shortage continues to grow, with thousands on waiting lists for 5 years or more. Medical leaders propose removing financial disincentives and exploring incentives like health insurance post-donation to ensure donor safety. However, there is ongoing debate about the ethics of introducing financial payments.

SourceWiley·JournalAmerican Journal of Transplantation·DateMar 31, 2015

The 100 million year-old piggyback

Scientists have discovered a 100-million-year-old insect fossil that shows an adult female insect caring for its young, a behavior previously unknown to exist during the Mesozoic era. This discovery pushes back the earliest direct evidence of insect brood care by more than 50 million years.

SourceeLife·DateMar 31, 2015

Bullying by students with disabilities reduced by social-emotional learning

A three-year study found that students with disabilities who participated in a social-emotional learning program experienced a 20% decrease in bullying perpetration. The researchers suggest that the program helped these students better manage their impulses, reducing reactive aggression and improving overall behavior.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalRemedial and Special Education·DateMar 31, 2015

Scientists find clues into cognitive dysfunction in chronic fatigue syndrome

Researchers found depressed levels of cytokines, including interleukin 1, in individuals with ME/CFS compared to healthy controls, while an inflammatory molecule called eotaxin was elevated in the group. These findings may contribute to symptoms such as brain fog and offer hope for objective diagnostic tests and therapies that correct ...

The rise of the takeaway

A study by University of Cambridge researchers found a substantial increase in takeaway food outlets in Norfolk over two decades, particularly in deprived areas. The density of these outlets rose significantly, contributing to higher obesity rates and unhealthy diets among local residents.

SourceUniversity of Cambridge·JournalHealth & Place·DateMar 31, 2015

Percentage of children eating fast food on a given day drops

A study published in JAMA Pediatrics found that the percentage of children eating fast food on a given day dropped from 38.8% to 32.6% between 2003-2004 and 2009-2010, respectively. Calorie intake from burger and chicken restaurants also decreased, while Mexican and sandwich restaurants remained constant.

SourceJAMA Network·JournalJAMA Pediatrics·DateMar 30, 2015

News from Annals of Internal Medicine March 31, 2015

The US Preventive Services Task Force has updated its recommendations on iron supplementation and screening in pregnant women, finding that routine iron supplementation during pregnancy may reduce the incidence of iron deficiency and anemia. In contrast, new hepatitis C treatments show promise but may exceed insurers' willingness to pa...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMar 30, 2015