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Science News for December 22, 2006


Genomic variation easier to identify with UCSD/Brown software

Scientists at UCSD and Brown University have developed InvChecker, a software program that accurately detects microinversions in genomes. By comparing DNA sequences of multiple species, the tool reveals shared mutations, providing valuable insights into evolutionary relationships and biological mechanisms.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateDec 22, 2006

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