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Science News for November 21, 2013


Does obesity reshape our sense of taste?

A new study published in PLOS ONE found that obese mice have fewer taste cells capable of detecting sweetness and react weakly to sweet stimuli. This impairment may contribute to overeating and weight gain by reducing the effectiveness of the body's natural appetite suppressants.

SourceUniversity at Buffalo·JournalPLOS ONE·DateNov 21, 2013

Bio-based solar cell

The Ruhr-University Bochum researchers developed a bio-based solar cell using photosystem 1 and 2 proteins, generating an efficient electron current. The bio-based solar cell boasts an efficiency of several nanowatts per square centimeter, making it a potential blueprint for semi-artificial and natural cell systems.

SourceRuhr-University Bochum·JournalAngewandte Chemie International Edition·DateNov 21, 2013

License to ill

A recent study found that firms with a history of social responsibility are more likely to engage in subsequent social irresponsibility, particularly if CEOs have a strong moral image. For every five positive actions taken, companies receive a 'license to commit' one negative action.

SourceUniversity of California - Riverside·JournalPersonnel Psychology·DateNov 21, 2013

Additive may make wine fine for a longer time

Researchers have discovered an additive that inhibits oxidation in wine, reducing discoloration and loss of aroma. Chelation compounds like phytic acid can bind with metals to neutralize oxidation, making it a promising solution for winemakers.

SourcePenn State·JournalJournal of Agricultural and Food Chemistry·DateNov 21, 2013

Dreading pain can be worse than pain itself

Research published in PLOS Computational Biology found that people prefer to hasten painful stimuli over waiting for it, as anticipation can be more disabling than the pain. The study suggests that focusing on immediate pain reduces dread, while considering future pain increases it.

SourcePLOS·JournalPLOS Computational Biology·DateNov 21, 2013

Using data to fight malaria

The University of California, Riverside researcher is using sensors to count and classify insect vectors, providing real-time information to plan effective interventions. She aims to create an open-source library of insect wingbeat signatures and behaviors to aid researchers worldwide in combating malaria.

Newborn babies have built-in body awareness ability

Researchers found that newborn babies show signs of body awareness by differentiating their own bodies from others. They exhibit interest in looking at another baby's face when it is stroked synchronously with their own, suggesting a mechanism for self-perception already in place.

SourceCell Press·JournalCurrent Biology·DateNov 21, 2013

Minority parents fear for kids online

A collaborative study between researchers at Northwestern University and Microsoft Research found that Asian and Hispanic parents are significantly more likely to be concerned about all online safety-related issues. In contrast, white parents exhibit the lowest levels of concern across various online safety issues.

SourceNorthwestern University·JournalPolicy & Internet·DateNov 21, 2013

Breaking the code

Researchers developed a diagnostic method that reveals factors behind conditions thought to have environmental triggers by decoding an individual's immune system. The process identifies disease-specific antibodies and their corresponding antigens, providing insight into conditions like Type-1 diabetes, autism, and Alzheimer's disease.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateNov 21, 2013

Researchers gain fuller picture of cell protein reactions

Northwestern University researchers have developed a new technique to profile enzyme activities in cell lysate, providing a fast, low-cost, and label-free method for studying post-transcriptional processes. By using peptide arrays and SAMDI mass spectrometry, the researchers were able to identify patterns of enzyme activities and shed ...

SourceNorthwestern University·JournalAnalytical Chemistry·DateNov 21, 2013

Thinking ourselves into eating more, reinforcing female math stereotypes, and more

Research in Personality and Social Psychology Review sheds light on the psychological barriers to healthy eating, including how thinking before eating can undermine dieting goals. Meanwhile, studies on terror-management theory and violent video games reveal the complex relationships between death awareness, celebrity endorsements, and ...

SourceSociety for Personality and Social Psychology·JournalPersonality and Social Psychology Review·DateNov 21, 2013

Optimal site for cell transplantation to treat spinal cord injury investigated

A study investigated the optimal site for cell transplantation to treat spinal cord injury, using laboratory mice with contusive spinal cord injuries. The researchers found that intralesional injection of neural stem/progenitor cells led to motor functional recovery and improved survival rates compared to other sites.

Different types of teacher-child interactions support children's development in different areas

A new study analyzed data on 1,400 preschoolers and 325 teachers to understand the impact of different types of teacher-child interactions. The research found that responsive teaching, cognitive facilitation, and structured classroom environment were crucial for supporting children's academic progress and social development.

SourceSociety for Research in Child Development·JournalChild Development·DateNov 21, 2013

Fun at work promotes employee retention but may hurt productivity

Research found that manager support for fun significantly reduces employee turnover, especially among younger workers. However, this support also negatively impacts sales performance, regardless of age. The study suggests a balance between manager support for fun and engaging activities to minimize productivity losses.

SourcePenn State·JournalCornell Hospitality Quarterly·DateNov 21, 2013

Fungus-fighting drug may make mild flu meaner

A study published in Cell Reports found that Amphotericin B, a common antifungal medication, can render a protein important for antiviral defense ineffective in both cells and mice. This makes patients receiving the therapy more vulnerable to influenza and other viral infections.

SourceCell Press·JournalCell Reports·DateNov 21, 2013

Research paves path for hybrid nano-materials that could replace human tissue or today's pills

Researchers have made breakthrough in understanding protein polymers' interaction with other self-assembling biopolymers, paving the way for engineered bio-composites for various medical applications. The discovery has potential for biodegradable and biocompatible materials, such as drug delivery systems and tissue growth scaffolding.

SourceNYU Tandon School of Engineering·JournalBiomacromolecules·DateNov 21, 2013

Cosmic finding ushers in 'new age of astronomy'

Researchers at the University of Delaware part of an international team that observed 28 high-energy particle events coming from cosmic accelerators, possibly exploding stars or accreting black holes. The discovery marks the first solid evidence of neutrinos originating from sources outside our solar system.

SourceUniversity of Delaware·JournalScience·DateNov 21, 2013

Attractants prevent nerve cell migration

Researchers from Bonn University discovered that immature nerve cells secrete chemical attractants that prevent mature brain cells from migrating into the brain. Inactivating these attractants improves nerve cell migration in animal models, offering a promising universal approach to treat Parkinson's and Huntington's diseases.

SourceUniversity of Bonn·JournalNature Neuroscience·DateNov 21, 2013