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Science News Archive June 2014 - Page 15


Page 15 of 33

The genes behind immunity

A special collection of research articles addresses the genetic underpinnings of host defenses against pathogens, revealing the complex determinants of immunity. Studies examine how genes influence immune responses, including those related to autoimmune thyroid diseases and insect resistance.

SourceGenetics Society of America·JournalGenetics·DateJun 17, 2014

Strange physics turns off laser

Researchers at Princeton University have created a laser system that unexpectedly shuts off when more power is applied, offering new possibilities for controlling optical systems. This phenomenon is made possible by the careful distribution of energy loss within an overall system being amplified.

SourcePrinceton University, Engineering School·JournalNature Communications·DateJun 17, 2014

Laser physics upside down

Researchers at Vienna University of Technology have created a system of coupled lasers that exhibit paradoxical behavior. By adding or reducing energy, the lasers can switch each other on or off, making them suitable for building logical circuits using light.

SourceVienna University of Technology·JournalNature Communications·DateJun 17, 2014

Surfing the Web in class? Bad idea

Researchers at Michigan State University found that non-academic Internet use in class leads to lower exam scores for all students, not just those with lower intellectual abilities. The study suggests that the engaging nature of internet use can be a significant distraction and negatively impact academic performance.

SourceMichigan State University·JournalComputers & Education·DateJun 17, 2014

Dynamic spectroscopy duo

Researchers developed a new technique to study photochemical reactions, allowing for simultaneous monitoring of electronic and molecular dynamics. This breakthrough could answer questions about photochemical and photobiological systems, enabling the development of more efficient solar energy systems and nanomaterials.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateJun 17, 2014

Three parents and a baby

A study finds that the 'Three-Parent Baby' method, which involves combining a healthy egg cell with a defective one, may pose health risks to offspring if mitochondria from different mothers are present. Researchers propose a solution by analyzing and aligning mitochondrial DNA haplotypes before transfer.

$2.4 million NIH center grant to develop a cleaner, healthier environment in Detroit

Wayne State University has received a $2.4 million NIH grant to develop a cleaner, healthier environment in Detroit through its Center for Urban Responses to Environmental Stressors (CURES) program. The program will explore the impact of environmental exposures on human health, particularly in vulnerable populations such as children an...

NIST technique could make sub-wavelength images at radio frequencies

Researchers at NIST and University of Michigan develop a new method to image electric fields at resolutions far below RF wavelengths using laser light and rubidium atoms. The technique maps RF field strength as a function of position at resolutions as low as one-hundredth of an RF wavelength, far below normal antenna limits.

SourceNational Institute of Standards and Technology (NIST)·JournalApplied Physics Letters·DateJun 17, 2014

A new twist on neuro disease: Discovery could aid people with dystonia, Parkinson's and more

Researchers at Michigan Medicine have created a new mouse model of primary dystonia, which closely mimics the human form of the disease. The discovery could aid people with dystonia, Parkinson's and more, providing new insights into the basic biology of the disease and potentially leading to better treatments.

SourceMichigan Medicine - University of Michigan·JournalJournal of Clinical Investigation·DateJun 17, 2014

Former athletes finish first in race for top jobs

A new study by Cornell University reveals that past participation in competitive team sports confers occupationally advantageous traits that persist across a person's life. Former varsity athletes are expected to be more self-confident and demonstrate leadership skills.

SourceCornell University·JournalJournal of Leadership & Organizational Studies·DateJun 17, 2014

Role reversal: Linking a reproductive pathway to obesity

Research has linked kisspeptin signaling to increased weight gain and glucose intolerance in mice lacking the pathway. This study found that reduced metabolism and decreased energy led to excess weight gain, not increased food consumption. The findings have potential for treating human obesity.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 17, 2014

Pain pilot explores hand shiatsu treatment as sleep aid

A pilot study found that self-administered hand shiatsu pressure techniques can help participants with chronic lower-back pain fall asleep faster and stay asleep longer. The study's findings suggest that this low-cost alternative may be a valuable tool in addressing the sleep deprivation that often exacerbates chronic pain.

SourceUniversity of Alberta·JournalJournal of Integrative Medicine·DateJun 17, 2014

Death by prescription painkiller

A major public health problem is emerging due to an increase in deaths from prescribed painkillers, with over 16,000 US deaths in 2010 alone. The review identifies factors such as increased opioid prescriptions, combined use of opioids and other substances, and social demographic factors as contributing causes.

SourceMcGill University·JournalAmerican Journal of Public Health·DateJun 17, 2014

The Lancet Psychiatry: Mental health patients more than twice as likely to be victims of homicide than the general public

A national study reveals that mental health patients are two and a half times more likely to be victims of homicide than the general public. The study found that 6% of homicide victims had been under mental health care in the year preceding their death, with many cases involving substance misuse and a history of violence.

SourceThe Lancet·JournalThe Lancet Psychiatry·DateJun 17, 2014