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Science News Archive 2012 - Page 69


Page 69 of 333

Melanoma - The wolf in sheep's clothing

Melanoma cells can temporarily alter their external characteristics to become invisible to defense cells, allowing them to evade destruction. This knowledge forms an important foundation for improving combination therapies and may also be relevant to treatment with inhibitors of signal transmission in tumor cells.

SourceUniversity of Bonn·JournalNature·DateOct 10, 2012

Voting in national elections causes stress and emotional arousal according to Ben-Gurion University study

A study published in European Neuropsychopharmacology found that voting in national elections triggers measurable hormonal changes and emotional reactions. The cortisol levels of participants were nearly three times higher just before voting compared to the control group, indicating significant stress and arousal.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalEuropean Neuropsychopharmacology·DateOct 10, 2012

Cold cases heat up through Lawrence Livermore approach to identifying remains

A multidisciplinary approach combining radiocarbon analysis, anthropological analysis, and forensic DNA techniques has been used to identify the remains of a missing child 41 years after discovery. The method was successful in pinpointing birth dates and death dates for the child, providing a breakthrough in solving cold cases.

SourceDOE/Lawrence Livermore National Laboratory·JournalJournal of Forensic Sciences·DateOct 10, 2012

Skin hair skims heat off elephants

A new study suggests that elephant skin hair plays a role in heat dissipation, allowing them to maintain a constant body temperature in hot regions. Researchers found that sparse skin hair increases heat loss from the skin, benefiting large terrestrial mammals like elephants.

SourcePLOS·JournalPLOS ONE·DateOct 10, 2012

Testosterone increases honesty

Researchers found that testosterone-treated subjects lied less frequently than placebo-treated subjects in a dice game experiment. This result challenges the common perception of testosterone as promoting aggressive behavior and suggests that it may increase pride and the need for self-image.

SourceUniversity of Bonn·JournalPLOS ONE·DateOct 10, 2012

Does immune dysfunction contribute to schizophrenia?

A new study has identified variants of genes influencing immune function that may contribute to the heritable risk for schizophrenia. The research, published in Biological Psychiatry, highlights an important gap in understanding how immune alterations are involved in the disorder.

SourceElsevier·JournalBiological Psychiatry·DateOct 10, 2012

Palm oil massive source of carbon dioxide

A new study reveals that expanding palm oil production is driving massive carbon dioxide emissions and rainforest destruction in Indonesian Borneo. The sector's growth has cleared about 16,000 square kilometers of forestland since 1990, accounting for 60% of Kalimantan's total forest cover loss.

SourceYale University·JournalNature Climate Change·DateOct 10, 2012

The graphene-paved roadmap

The graphene-paved roadmap outlines the material's potential for transforming various industries, including electronics and medicine. With its unique properties, graphene is expected to play a crucial role in developing new technologies such as flexible devices, rollable e-paper, and high-speed wireless communications.

SourceUniversity of Manchester·JournalNature·DateOct 10, 2012

Surprising spiral structure spotted by ALMA

A team using ALMA discovered a surprising spiral structure in the gas around red giant star R Sculptoris, suggesting a previously unseen companion star. The astronomers found that far more material than expected had been ejected by the star, contributing to the dust and gas that form future stars.

SourceESO·JournalNature·DateOct 10, 2012

Plants in space!

Researchers at Michigan State University are studying plant adaptation to space stress using Arabidopsis mutants without functional IRE1 pathways. The goal is to gain insight into gene regulation and develop protocols for managing stress levels in space.

Are liberal arts colleges disappearing?

A study by Michigan State University scholar Roger Baldwin finds that only 130 of the original 212 liberal arts colleges remain, with many evolving into career-oriented institutions. The trend threatens to diminish America's renowned higher education system.

SourceMichigan State University·JournalLiberal Arts and Sciences Education·DateOct 10, 2012

The good, the bad, and the guilty: Anticipating feelings of guilt predicts ethical behavior

Research suggests that people anticipating negative feelings from guilt are more likely to exhibit sympathetic and moral traits. This can lead to better business decisions and less unethical behavior in the workplace. Guilt-proneness is linked to lower counterproductive work behaviors, even after controlling for other factors.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateOct 10, 2012

New fossils suggest ancient origins of modern-day deep-sea animals

A collection of fossil animals discovered off the coast of Florida suggests that present-day deep-sea fauna may have evolved earlier than previously thought. The fossils show striking similarities to modern equivalents, indicating that ancestors of these animals lived in deep waters for much longer than believed.

SourcePLOS·JournalPLOS ONE·DateOct 10, 2012

The best of both catalytic worlds

Researchers at Berkeley Lab develop a new technique to create sustainable heterogenized homogeneous nanocatalysts with high reactivity and selectivity. This breakthrough combines the best properties of both heterogeneous and homogeneous catalysts, enabling control over product distribution in industrial chemistry processes.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Chemistry·DateOct 10, 2012

High levels of blood-based protein specific to mesothelioma

Researchers have discovered a specific marker, fibulin-3, that is four to five times higher in the plasma of patients with mesothelioma compared to those exposed to asbestos. The protein demonstrates high sensitivity and specificity for diagnosing mesothelioma, potentially leading to earlier treatment and improved patient outcomes.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNew England Journal of Medicine·DateOct 10, 2012

Light might prompt graphene devices on demand

Researchers at Rice University have made a breakthrough in doping graphene with light, allowing for the creation of simple, graphene-based diodes and transistors on demand. The discovery uses plasmonics to manipulate light and inject electrons into the material, enabling novel security and cryptography devices.

SourceRice University·JournalACS Nano·DateOct 10, 2012

Making crowdsourcing more reliable

Crowdsourcing researchers have developed novel methods to verify information collected through crowdsourcing. The methods use incentives to recruit participants to verify reports, ensuring the accuracy of gathered data. This improvement can be particularly valuable in time-critical tasks where established hierarchies are lacking.

SourceUniversity of Southampton·JournalPLOS ONE·DateOct 10, 2012

Women react to and recollect negative news more than men do

Researchers found that women who read negative news had higher cortisol levels after a psychological stress test compared to men. Women also showed stronger emotional responses to the negative news they had viewed previously, suggesting a gender difference in how we react to negative news in the media.

SourcePLOS·JournalPLOS ONE·DateOct 10, 2012

Singing mice show signs of learning

A new study reveals that male mice can learn to match the pitch of other males' ultrasonic serenades, exhibiting certain brain features similar to those found in humans and song-learning birds. The researchers also identified genes specific to vocal behavior in mouse brains, previously only found in songbirds and humans.

SourceDuke University·JournalPLOS ONE·DateOct 10, 2012

Human neural stem cells study offers new hope for children with fatal brain diseases

Researchers at Oregon Health & Science University have demonstrated that banked human neural stem cells can survive and make functional myelin in mice with severe symptoms of myelin loss. The study provides proof of principle for treating a wide variety of disorders that affect myelin, including cerebral palsy and multiple sclerosis.

SourceOregon Health & Science University·JournalScience Translational Medicine·DateOct 10, 2012

A problem shared is a problem halved

Girls who experienced bullying reported lower life satisfaction, self-esteem, and higher anxiety levels. Positive relationships with adults and peers strongly mitigated these negative effects, suggesting a key role for social support in promoting children's well-being.

SourceSpringer·JournalJournal of Happiness Studies·DateOct 10, 2012