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Science News for April 25, 2007


Asymmetry due to perfect balance

A team of scientists has developed a new method to analyze the development of cortical polarity in cell membranes, which is essential for various cellular processes. They combined experiments with living cells and a mathematical model, showing that polarized regions are defined with near-optimal precision.

SourceMax-Planck-Gesellschaft·JournalCell·DateApr 25, 2007

'No' doesn't always mean 'no'

A study suggests that people who decline to participate in research may not necessarily object to taking part, but rather due to confusion about the research nature and process. This finding highlights the importance of clarifying potential sources of confusion in participation requests.

SourceBMC (BioMed Central)·JournalBMC Health Services Research·DateApr 25, 2007

Water flows like molasses on the nanoscale

A Georgia Tech research team discovered that water exhibits layered properties when confined to channels less than two nanometers wide. The study found that the viscosity of water increases dramatically as it approaches one nanometer in thickness, potentially making it a more suitable lubricant for applications.

SourceGeorgia Institute of Technology·JournalPhysical Review B·DateApr 25, 2007

Physician ties to drug industry stronger than ever

A study found that virtually all practicing physicians in the US have relationships with pharmaceutical manufacturers, often through food or prescription samples. The extent and nature of these relationships vary by practice type, specialty, and patient mix.

SourceBurness·JournalNew England Journal of Medicine·DateApr 25, 2007