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Researchers reverse the cognitive impairment caused by sleep deprivation

Medicine & Health / Research

created Oct 22, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- A research collaboration led by biologists and neuroscientists at the University of Pennsylvania has found a molecular pathway in the brain that is the cause of cognitive impairment due to sleep deprivation. ...


Major advance in organic solar cells

Chemistry / Polymers

created Oct 19, 2009 | popularity 4.5 / 5 (14) | comments 0

Professor Guillermo Bazan and a team of postgraduate researchers at UC Santa Barbara's Center for Polymers and Organic Solids (CPOS) today announced a major advance in the synthesis of organic polymers for plastic solar cells. ...


Researchers to develop probes to study cellular GPS

Biology / Cell & Microbiology

created Nov 10, 2009 | popularity not rated yet | comments 0

An international group of researchers from Carnegie Mellon University, Goettingen Medical School in Germany and the University of Cambridge in the United Kingdom have received a Human Frontiers Science Program (HFSP) grant ...


Unlocking mysteries of the brain with PET

Medicine & Health / Research

created Oct 30, 2009 | popularity not rated yet | comments 0

Inflammatory response of brain cells—as indicated by a molecular imaging technique—could tell researchers more about why certain neurologic disorders, such as migraine headaches and psychosis in schizophrenic patients, occur ...


Research study on the European mink, Mustela lutreola

Biology / Ecology

created Nov 02, 2009 | popularity not rated yet | comments 0

The European mink, Mustela lutreola, is a species catalogued as in danger of extinction, due to the large decline in their population over the past century. It is considered to be one of the most endangered mammals, both l ...


Capturing those in-between moments: Researchers solves timing problem in molecular modeling

Capturing those in-between moments: Researchers solves timing problem in molecular modeling

Physics / General Physics

created Nov 04, 2009 | popularity 5 / 5 (5) | comments 0

A theoretical physicist at the National Institute of Standards and Technology has developed a method for calculating the motions and forces of thousands of atoms simultaneously over a wider range of time scales ...


Tumor-initiating Cells Detected in Pten Null Prostate Cancer Model

Medicine & Health / Cancer

created Nov 12, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- New findings published in Cancer Research, a journal of the American Association for Cancer Research, advance the current understanding of the role of stem/progenitor cells on the initiation and progression of pro ...


Classifying molar pregnancy

Medicine & Health / Research

created Oct 21, 2009 | popularity not rated yet | comments 0

Researchers from The Johns Hopkins Medical Institutions have used short tandem repeat (STR) genotyping and p57 immunohistochemistry to distinguish hydatidiform moles. The related report by Murphy et al "Molecular Genotyping ...


Getting on 'the GABA receptor shuttle' to treat anxiety disorders

Medicine & Health / Psychology & Psychiatry

created Oct 22, 2009 | popularity 4.5 / 5 (2) | comments 1

There are increasingly precise molecular insights into ways that stress exposure leads to fear and through which fear extinction resolves these fear states. Extinction is generally regarded as new inhibitory learning, but ...


EphA4 -- the molecular transformer

EphA4 -- the molecular transformer

Chemistry / Analytical Chemistry

created Oct 23, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- EphA4 is a protein which is attached to the surfaces of many types of human cells and plays a role in a wide range of biological processes. EphA4 functions by binding to ephrin ligands, cell ...


Venomous bite: Harmless digestive enzyme evolved into venom in two species

Venomous bite: Harmless digestive enzyme evolved into venom in two species

Biology / Plants & Animals

created Oct 29, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Biologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species -- a shrew and a lizard -- giving each a venomous ...


Chemists discover recipe to design a better type of fuel cell

Chemistry / Materials Science

created Oct 18, 2009 | popularity 3.9 / 5 (11) | comments 2

Fuel cells are often touted as one method to help decrease society's addiction to fossil fuels. But there is still a lot of work to be done before fuel cells will be ready for mass market to be used in transportation, home ...


Alternatively spliced tissue factor identified as promising new biomarker for aggressive cancers

Medicine & Health / Cancer

created Oct 26, 2009 | popularity 5 / 5 (1) | comments 0

A recently discovered form of the protein that triggers blood clotting may play a key role in the molecular mechanisms leading to the growth of certain metastatic cancers, according to new research reported by an international ...


Cholesterol-lowering medicines may be effective against cancer

Cholesterol-lowering medicines may be effective against cancer

Medicine & Health / Research

created Oct 27, 2009 | popularity 5 / 5 (1) | comments 0

Millions of people around the world use medicines based on statins to lower their blood cholesterol, but new research from the University of Gothenburg, published in the prestigious journal PNAS, shows that s ...


A master mechanism for regeneration?

Medicine & Health / Neuroscience

created Oct 19, 2009 | popularity 4.8 / 5 (6) | comments 1

ANN ARBOR, Mich.---Biologists long have marveled at the ability of some animals to re-grow lost body parts. Newts, for example, can lose a leg and grow a new one identical to the original. Zebrafish can re-grow fins.