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Science News Archive October 2006 - Page 4


Page 4 of 17

Nevada Terawatt Facility makes important advancement in unraveling mysteries of fusion energy

Researchers at the Nevada Terawatt Facility have made a significant step forward in understanding fundamental processes required for controlled fusion energy. They developed a new technique to measure mass transport and magnetic field dynamics in low wire array z-pinches, which could lead to improved efficiency in energy transfer.

SourceUniversity of Nevada, Reno·JournalPhysical Review Letters·DateOct 25, 2006

Another form to fill in

A study by CQU's International Program for Psycho-Social Health Research (IPP-SHR) revealed that standardised questionnaires in hospice practice negatively impacted upon patients' and carers' experiences and wellbeing. Informal conversation was seen as a flexible, sensitive, and consumer-focused alternative to questionnaire use.

SourceResearch Australia·JournalSupportive Care in Cancer·DateOct 25, 2006

Research discovers oldest bee, evolutionary link

Researchers at Oregon State University have discovered the oldest bee ever known, a 100 million year old specimen preserved in almost lifelike form in amber. The discovery supports the theory that pollen-dependent bees evolved from meat-eating wasps and sheds light on the rapid expansion of flowering plants during the Cretaceous Period.

SourceOregon State University·JournalScience·DateOct 25, 2006

Immune cell communication key to hunting viruses, Jefferson immunologists show

Researchers created a biosensor using quantum dots to mimic the clustering of MHC proteins on target cells, revealing strong contributions from non-viral peptide-MHC interaction with co-receptors. This cooperativity suggests that a single virus-MHC complex recognized in self-MHC complexes can activate a T-cell response.

SourceThomas Jefferson University·JournalProceedings of the National Academy of Sciences·DateOct 25, 2006

Exposure to sunlight could reduce asthma

Researchers have found that measured doses of ultraviolet light can significantly reduce the development of asthma-like symptoms in mice. Exposure to UV light before allergen exposure also produces a cell type that can prevent some asthma symptoms when transferred into other mice.

Alzheimer's alarm over anesthetics

Recent test tube and animal experiments suggest that certain general anaesthetics could increase the risk of developing Alzheimer's disease and other memory problems in elderly patients. The studies also highlight the need for more careful recording of anaesthetic combinations and doses to assess potential risks.

SourceNew Scientist·JournalThe New Scientist·DateOct 25, 2006

Blood markers predict risk for recurrent stroke and mortality

Researchers at Columbia University Medical Center found that elevated inflammatory biomarkers, such as Lp-PLA2 and hs-CRP, are associated with increased risk of recurrent stroke and mortality after a first stroke. The study's findings may lead to the use of prophylactic treatments to reduce stroke risk in people with elevated biomarkers.

SourceColumbia University Irving Medical Center·JournalArchives of Internal Medicine·DateOct 24, 2006

Genetic variation impacts aspirin's effectiveness in preventing colon cancer, Dartmouth study finds

A recent study by Dartmouth researchers found that individuals with a specific genetic variation in their ODC gene are more likely to benefit from aspirin use in preventing colon cancer. These individuals were 23% less likely to develop new adenomas and 49% less likely to develop more advanced lesions.

SourceDartmouth College·JournalJNCI Journal of the National Cancer Institute·DateOct 24, 2006

Significant amount of binge eating occurs in restaurants

A recent study published in Western Journal of Nursing Research found that about 30% of binges occur at restaurants, contradicting the perception that binge eating takes place in private. Restaurant eating habits contribute to the development of obesity, as large portion sizes and frequent dining out can lead to excessive calorie intake.

SourceSAGE·JournalWestern Journal of Nursing Research·DateOct 24, 2006

Childhood abuse can impact victims' adult relationships

A recent study found that victims of childhood abuse tend to transfer their feelings towards their abusive parent to new people, leading to negative reactions. This 'transference' can affect adult relationships and highlight the importance of understanding the long-term impact of childhood trauma.

SourceSAGE·JournalPersonality and Social Psychology Bulletin·DateOct 24, 2006

Viral marker of human migration suspect

Researchers found that some viruses, like the human polyomavirus JCV, may be evolving at higher rates than previously assumed. The virus is traditionally used as a genetic marker for human migration and evolution, but its reliability has been called into question by this new study.

SourcePenn State·JournalJournal of Virology·DateOct 24, 2006

When is a supersolid not quite so super?

Researchers at Brown University use a kitchen table physics experiment to study supersolid helium, finding evidence of its behavior in 3 out of 13 trials. The team suggests that a layer of superfluid helium only a single molecule thick forms at grain boundaries, creating a path for movement through the solid.

SourceBrown University·JournalScience·DateOct 24, 2006