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Science News Archive 2010 - Page 44


Page 44 of 283

Levels of coumarin in cassia cinnamon vary greatly even in bark from the same tree

A recent study reveals significant variation in coumarin levels among Cassia cinnamon samples, with powder containing up to 63 times more coumarin than Ceylon cinnamon. Researchers highlight the need for further research to identify factors influencing coumarin levels and potentially allow for lower-coumarin harvesting.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateNov 3, 2010

Researchers expand cyberspace to fight chronic condition in breast cancer survivors

University of Missouri researchers are developing a virtual database to store, search, and review information on lymphedema treatment. The system aims to improve patient health by providing timely access to evidence-based research. Lymphedema is a chronic condition affecting physical, mental, and social health in breast cancer survivors.

SourceUniversity of Missouri-Columbia·JournalProceedings of the IEEE·DateNov 3, 2010

New 3-D model of RNA 'core domain' of enzyme telomerase may offer clues to cancer, aging

Researchers at UCLA have created a three-dimensional structural model of the RNA core domain of the telomerase enzyme, which plays a critical role in cancer cell immortality. The new model provides insights into how telomerase functions and could lead to new approaches for treating diseases associated with telomerase activity.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateNov 3, 2010

Language appears to shape our implicit preferences

A study by Harvard University psychologists found that bilingual individuals' opinions of ethnic groups were affected by the language they spoke. The researchers used the Implicit Association Test to show that language can create and shape implicit attitudes, challenging the view that attitudes are stable.

SourceHarvard University·JournalJournal of Experimental Social Psychology·DateNov 3, 2010

Electrons get confused

Researchers at HZB observed exotic behavior in beryllium oxide when bombarded with high-speed heavy ions, causing electrons to forget material properties. The results show changes in electronic structure and ultra-fast melting processes around the firing line of the heavy ions.

SourceHelmholtz Association·JournalPhysical Review Letters·DateNov 3, 2010

Main squeeze not needed for boa mom

Researchers at North Carolina State University have discovered that female boa constrictors can reproduce asexually, producing all-female babies with rare genetic traits. The study found that these WW-chromosome females retained their mother's color mutation and lacked any male influence.

SourceNorth Carolina State University·JournalBiology Letters·DateNov 3, 2010

University of Illinois researchers discover potential new virus in switchgrass

Researchers at the University of Illinois have discovered a new virus in switchgrass that can cause mosaic and yellow streak symptoms, reducing photosynthesis and biomass yield. The virus, Marafivirus, is related to Maize rayado fino virus and has the potential to affect other crops.

Mayo Clinic Proceedings: November highlights

Researchers found that khat chewing increases the risk of stroke and death in patients with acute coronary syndrome, while excess energy beverage consumption may lead to adverse effects. Withdrawing pacemakers and ICDs at end-of-life raises complex questions about patient autonomy and medical professional perspectives.

SourceMayo Clinic·JournalMayo Clinic Proceedings·DateNov 2, 2010