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Science News for November 1, 2009


Bacteria 'launch a shield' to resist attack

Pseudomonas aeruginosa produces rhamnolipids to form a biofilm shield that kills white blood cells, evading the immune system and antibiotic treatment. This 'launch a shield' response could lead to novel antimicrobials for treating antibiotic-resistant infections.

SourceMicrobiology Society·JournalMicrobiology·DateNov 1, 2009

An exquisite container

Researchers have developed a tiny, gold nanocage that responds to light and releases carefully titrated amounts of chemotherapy drugs at specific tissue sites. The system is designed to maximize the beneficial effects of the medication while minimizing side effects.

SourceWashington University in St. Louis·JournalNature Materials·DateNov 1, 2009
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Losing your tongue

The world's top experts in endangered languages are converging at the University of Utah to create a comprehensive online database. The gathering aims to preserve 7,000 languages that are at risk of extinction, with nearly 90% predicted to disappear in the next 100 years.

SourceUniversity of Utah·DateNov 1, 2009

Cucumber genome published

The cucumber genome has been sequenced, offering a platform for studying the cucurbit family and plant biology. The genome will aid in understanding disease and pest-resistance, flavor traits, and sex expression, with potential applications in agriculture.

SourceUniversity of California - Davis·JournalNature Genetics·DateNov 1, 2009

Duke develops nano-scale drug delivery for chemotherapy

Researchers at Duke University have developed a simple and inexpensive method for loading cancer drugs into nano-scale delivery vehicles. The new formulation showed promising results in animal models, eliminating tumors after a single treatment while reducing side effects associated with systematic chemotherapy.

SourceDuke University·JournalNature Materials·DateNov 1, 2009

Study shows that sleep deprivation can negatively affect information processing

A study found that sleep deprivation causes individuals to shift from automatic to controlled processes of information categorization, leading to performance deficits. The study involved 49 West Point Cadets who performed an information-integration categorization task twice with or without sleep between sessions.

SourceAmerican Academy of Sleep Medicine·JournalSLEEP·DateNov 1, 2009
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Study shows that sleep disturbances improve after retirement

A study shows that retirement is followed by a sharp decrease in sleep disturbances due to reduced work-related demands and stress. Sleep disturbance prevalence rates fell from 24.2% to 17.8% after retirement, with the greatest reduction reported among participants with depression or mental fatigue.

SourceAmerican Academy of Sleep Medicine·JournalSLEEP·DateNov 1, 2009
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Cancer, pain relief and immunity research supported by ARC

Research into breast cancer development, chronic pain and inflammatory diseases receives ARC funding to investigate epigenetic modifiers, immune responses and protein interactions. The institute aims to develop basic discoveries into clinical benefits for patients worldwide.

SourceWalter and Eliza Hall Institute·DateNov 1, 2009