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Science News Archive 2006 - Page 2


Page 2 of 178

Should we pay the same price for all movies?

Researchers argue that movie exhibitors can increase profits by adopting variable pricing, which would allow for price differentiation based on event movies, weekends, and holidays. The study suggests that consumers welcome discounts but may resent surcharges, making it easier for exhibitors to implement variable pricing.

SourceUniversity of Arizona·JournalInternational Review of Law and Economics·DateDec 22, 2006

Trans fat ban: Watch saturated fats and calories too

The trans fat ban in New York City is a step in the right direction, but restaurateurs need to replace partially hydrogenated fat with unsaturated fat. The regulation also requires restaurants to provide calorie information prominently, which may be even more important for addressing obesity and promoting heart health.

SourceTufts University·JournalAmerican Journal of Clinical Nutrition·DateDec 22, 2006

HIV treatments improve health, but nutritional issues remain

Research reveals that nearly one-fourth of people with HIV have metabolic syndrome, characterized by low HDL cholesterol and hypertriglyceridemia. HAART users also show increased risk for components of metabolic syndrome, highlighting the need for healthcare providers to monitor risk factors.

SourceTufts University·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateDec 22, 2006

How does aspirin crystallize?

Researchers have discovered that aspirin forms crystals containing both long-known and predicted structures, upending fundamental principles. The two 'polymorphic' forms exist in one single crystal, raising questions about the definition of polymorphism and its implications for patent law.

SourceWiley·DateDec 22, 2006

Unfolded proteins may protect cells from dying

Research from Rockefeller University reveals that unfolded protein response serves a protective role, shielding cells from death. The study focuses on autosomal dominant retinitis pigmentosa, where unfolded proteins accumulate in the endoplasmic reticulum, indicating their protective mechanism.

SourceRockefeller University·JournalThe EMBO Journal·DateDec 22, 2006

How your brain helps you become a wine expert

A new study by Northwestern University researchers shows that the brain learns to differentiate between similar smells simply through passive experience. Prolonged sensory exposure induces 'expertise' in specific smell categories, leading to improved odor discrimination and retention of this expertise for at least 24 hours.

SourceNorthwestern University·JournalNeuron·DateDec 21, 2006

Protection against cancer may begin during pregnancy

A new study found that supplements of Indole-3-carbinol provided significant protection against leukemia and lymphoma in young animals, as well as significantly protected against lung cancer later in life. The protective effects were found to come solely from maternal intake during pregnancy and nursing, and lasted into middle age.

SourceOregon State University·JournalCarcinogenesis·DateDec 21, 2006

Squirrels place winning bet in unpredictable world

In a study published in Science, researchers found that red squirrels are able to predict the timing of tree seed production and produce a second litter of babies to take advantage of the abundant food. This strategy allows them to maximize their reproductive success, outsmarting the trees' 'swamp and starve' tactic.

SourceUniversity of Alberta·JournalScience·DateDec 21, 2006

What it means to be human

Researchers found that humans and chimps share approximately 96% of their genes, with the remaining 4% being unique to each species. The study discovered a significant increase in gene duplication among humans, including those influencing brain functions, providing new insights into human evolution.

SourceUniversity of Bristol·JournalPLOS ONE·DateDec 21, 2006

JCI table of contents: Dec. 21, 2006

Researchers have discovered that mutations in the p62 gene are associated with abnormal bone cell development, but do not cause full-blown Paget disease. Meanwhile, a study found that GIP and GLP1R hormones influence energy levels beyond the pancreas, affecting brain cells, adipose tissue, and body weight.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 21, 2006

HYMS researchers focus on human evolution

Researchers analyzed 43,000-year-old Neanderthal remains at El Sidrón in Spain, revealing significant north-south variations in facial shape. The study suggests that Southern-European Neanderthals had broader faces with increased lower facial heights.

SourceUniversity of York·JournalProceedings of the National Academy of Sciences·DateDec 21, 2006

To catch an intermediate

Scientists at Berkeley Lab have developed a technique to capture and hold intermediate compounds in water, similar to how enzymes function. This method involves trapping the compounds inside molecular pyramids, allowing for controlled study of their properties and reactions.

SourceDOE/Lawrence Berkeley National Laboratory·JournalJournal of the American Chemical Society·DateDec 21, 2006

Pain relief effectiveness down to mind-set?

A study by the Human Pain Research Group at the University of Manchester found that individuals' expectations and beliefs play a crucial role in their response to pain relief. The researchers discovered that 67% of volunteers who expected pain relief continued to perceive less pain after applying a placebo cream, highlighting the power...

SourceUniversity of Manchester·JournalPain·DateDec 21, 2006

New type of massive stellar death

Scientists have identified a new type of massive stellar death, where stars may collapse into black holes without exploding in supernova explosions. This discovery was made using data from two long-duration Gamma-ray bursts detected by NASA's Swift satellite.

SourceUniversity of Copenhagen·JournalNature·DateDec 20, 2006

New imaging technique identifies people-at-risk for Alzheimer's disease

Researchers developed a new imaging technique that detects abnormal brain protein deposits associated with Alzheimer's disease in mild cognitive impairment. The study found that the method was more effective in differentiating patients with Alzheimer's disease from normal subjects, and tracked disease progression over a two-year period.

SourceUniversity of California - Los Angeles·JournalNew England Journal of Medicine·DateDec 20, 2006