Add BrightSurf on Google Email

Science News for November 17, 2004


No getting around RET

Researchers at RIKEN Center for Developmental Biology challenged the view that RET-independent GFRá1 signaling plays a significant physiological role in either development or regeneration. Studies on mice lacking RET-independent GFRá1 revealed no developmental defects, suggesting that this receptor complex is not essential.

Elephants in space

The Wildlife Conservation Society (WCS) is using high-tech satellite maps to count and track endangered species, including elephants and giraffes. The project aims to help conserve wildlife populations living in hard-to-reach locations, such as the Serengeti and South America.

How receptors govern inflammatory pain

Researchers found that AMPA receptors play a crucial role in regulating nerve cell responses to pain stimulation during inflammatory conditions. The study showed that mice with increased or decreased permeability of AMPA channels exhibited distinct pain responses to heat and mechanical pressure on inflamed paws.

SourceCell Press·JournalNeuron·DateNov 17, 2004

Ultrasound-aided therapy better than stroke drug alone, trial finds

A recent study found that combining ultrasound with tissue plasminogen activator (t-PA) therapy significantly improves outcomes for patients suffering from ischemic strokes. The results show a 49% increase in dramatic clinical improvement and significant blockage reduction compared to traditional t-PA treatment alone.

SourceNIH/National Institute of Neurological Disorders and Stroke·JournalNew England Journal of Medicine·DateNov 17, 2004

AGU journal highlights - 17 November 2004

Research papers in Geophysical Research Letters highlight advancements in measuring ocean conveyor belt circulation, tracing large-scale pollution from space, analyzing the energy of strong thunderstorms, and improving space weather predictions using recent satellite data.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateNov 17, 2004

To weigh less, eat more

Researchers from Penn State found that eating more water-rich foods and choosing reduced-fat options can lead to significant weight loss. In two studies, obese women who followed low-energy-density diets lost an average of 21 pounds compared to those on restricted fat intake diets.

Grant to study why teens smoke

A multidisciplinary team of investigators will track adolescent smoking patterns and predictors, including emotional well-being and social interactions, to identify factors influencing teen smoking behaviors. The study aims to improve prevention and treatment programs for teen smokers.

Rice engineers demo first T-ray endoscope

Researchers at Rice University developed a new wave guide technology that enables terahertz sensing capabilities in confined spaces. This innovation could aid applications such as explosive detection, cancer screening, and quality control, offering unique advantages over existing technologies.

SourceRice University·JournalNature·DateNov 17, 2004

How running made us human

Researchers argue that running played a key role in human evolution, favoring the survival of early humans who could cover long distances. The study identified 26 traits that enhanced running ability, such as leg and foot structure and skeletal features that make the body stronger and more stable.

SourceUniversity of Utah·JournalNature·DateNov 17, 2004