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Archive: 11/20/2008

Preventing tumor cells from refueling: A new anti-cancer approach?

New data, generated in mice, by Pierre Sonveaux and colleagues, at Université catholique de Louvain, Belgium, have identified a potential new target for anticancer therapeutics.

Medicine & Health / Cancer

created Nov 20, 2008 | popularity 4 / 5 (7) | comments 0

Barrow scientists solve 200-year-old scientific debate involving visual illusions

Neuroscientists at Barrow Neurological Institute at St. Joseph's Hospital and Medical Center have discovered a direct link between eye motions and the perception of illusory motion that solves a 200-year-old debate.

Medicine & Health / Research

created Nov 20, 2008 | popularity 4 / 5 (12) | comments 0

Supercontinuum generation and soliton dynamics milestone achieved

A research team led by Fetah Benabid, University of Bath, has observed for the first time the simultaneous emission of two resonant dispersive waves by optical solitons (waves that maintain their shape while traveling at ...

Physics / General Physics

created Nov 20, 2008 | popularity 4.4 / 5 (12) | comments 1

Lactic acid found to fuel tumors

A team of researchers at Duke University Medical Center and the Université catholique de Louvain (UCL) has found that lactic acid is an important energy source for tumor cells. In further experiments, they discovered a new ...

Medicine & Health / Cancer

created Nov 20, 2008 | popularity 4.8 / 5 (10) | comments 0

Specific DNA variations of the serotonin transporter gene can influence drinking intensity

The brain's serotonergic system plays an important role in alcohol preference and consumption. The serotonin transporter gene (SLC6A4), in particular, may regulate a person's propensity for severe drinking. A study of six ...

Medicine & Health / Genetics

created Nov 20, 2008 | popularity 5 / 5 (1) | comments 0

To contract or not: A key question for the uterine muscles in pregnancy

During pregnancy, the muscles of the uterus are relatively inactive. A switch to an activated state capable of strong contractions is therefore essential prior to the onset of labor. Kathleen Martin and colleagues, at Dartmouth ...

Medicine & Health / Other

created Nov 20, 2008 | popularity not rated yet | comments 0

Two from one: new research maps out evolution of genders from hermaphroditic ancestors

Research from the University of Pittsburgh published in the Nov. 20 edition of Heredity could finally provide evidence of the first stages of the evolution of separate sexes, a theory that holds that males and females develo ...

Biology /

created Nov 20, 2008 | popularity 4.8 / 5 (12) | comments 1

Probing question: What is a molecular clock?

It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is. But a molecular clock does tell time -- on an epoch scale. The molecular clock, explained S. Blair Hedges, is a tool ...

Biology /

created Nov 20, 2008 | popularity 4.4 / 5 (8) | comments 0

Carbon Nanotubes Detect Lung Cancer Markers in the Breath

(PhysOrg.com) -- Using an array of nanotube devices, each coated with a different organic material, researchers at the Israel Institute of Technology have developed diagnostic system that may be able to diagnose lung cancer ...

Nanotechnology / Bio & Medicine

created Nov 20, 2008 | popularity 4.9 / 5 (12) | comments 0

Carbon Nanotubes Improve Protein Array Detection Limits

(PhysOrg.com) -- To detect cancer as early as possible, dozens of research groups are developing methods to detect trace levels of cancer-related proteins and genes in blood or other biological samples. Those efforts should ...

Nanotechnology / Bio & Medicine

created Nov 20, 2008 | popularity 4.7 / 5 (12) | comments 0

Female Directors Pay Less for Companies in Mergers and Acquisitions: Study

When taking over companies, female executives get a better purchase price than their male counterparts, according to researchers at the Sauder School of Business at the University of British Columbia.

Other Sciences / Other

created Nov 20, 2008 | popularity not rated yet | comments 0

Research finds way to double rice crops in drought-stricken areas

University of Alberta research has yielded a way to double the output of rice crops in some of the world's poorest, most distressed areas.

Biology /

created Nov 20, 2008 | popularity 4.3 / 5 (4) | comments 0

Site List Narrows For NASA's Next Mars Landing

(PhysOrg.com) -- Four intriguing places on Mars have risen to the final round as NASA selects a landing site for its next Mars mission, the Mars Science Laboratory.

Space & Earth / Space Exploration

created Nov 20, 2008 | popularity 4.3 / 5 (12) | comments 4

IBM Seeks to Build the Computer of the Future Based on Insights from the Brain

(PhysOrg.com) -- In an unprecedented undertaking, IBM Research and five leading universities are partnering to create computing systems that are expected to simulate and emulate the brain’s abilities for sensation, ...

Technology / Computer Sciences

created Nov 20, 2008 | popularity 4.6 / 5 (12) | comments 1

Vitamin B1 biosynthesis: Think Rubik's cube

(PhysOrg.com) -- A key enzyme in the biosynthesis of vitamin B1 has somehow evolved the ability to perform a complex series of some 15 to 20 steps, report two Cornell chemists.

Chemistry /

created Nov 20, 2008 | popularity 4.3 / 5 (7) | comments 0