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Latest National Academy of Sciences Stories

2012-12-28 15:28:26

Researchers at Rush University Medical Center, in collaboration with researchers at Northwestern University, have identified a molecular mechanism central to the development of osteoarthritis (OA) pain, a finding that could have major implications for future treatment of this often-debilitating condition. “Clinically, scientists have focused on trying to understand how cartilage and joints degenerate in osteoarthritis. But no one knows why it hurts,” said Dr. Anne-Marie...

2012-12-26 12:47:29

An international team, headed by researchers at the University of California, San Diego School of Medicine, has identified a key enzyme in the reprogramming process that promotes malignant stem cell cloning and the growth of chronic myeloid leukemia (CML), a cancer of the blood and marrow that experts say is increasing in prevalence. The findings are published in the Dec. 24 online early edition of the Proceedings of the National Academy of Sciences (PNAS). Despite the emergence of new...

2012-12-26 12:46:07

New York University biologists have identified how a vital protein is loaded by others into the centromere, the part of the chromosome that plays a significant role in cell division. Their findings shed new light on genome replication and may offer insights into the factors behind the production of abnormal numbers of chromosomes. Their findings appear in the latest issue of the journal the Proceedings of the National Academy of Sciences. The researchers focused on the organization and...

2012-12-18 11:37:27

University of Maryland School of Medicine researchers have launched groundbreaking research into the spread of potentially deadly drug-resistant malaria in the developing Southeast Asian nation of Myanmar, also known as Burma. The scientists, working as part of a large international team coordinated by the World Health Organization (WHO), have identified several promising genetic markers that could be used to develop tests to identify and track the spread of the newest type of drug-resistant...

2012-11-28 11:15:55

An enhanced approach to capturing changes on the Earth's surface via satellite could provide a more accurate account of how ice sheets, river basins and other geographic areas are changing as a result of natural and human factors. In a first application, the technique revealed sharper-than-ever details about Greenland's massive ice sheet, including that the rate at which it is melting might be accelerating more slowly than predicted. Princeton University researchers developed a...

2012-11-27 11:23:43

A new twist on the evolution of species What happens when the modern evolutionary theory of punctuated equilibrium collides with the older theory of mosaic evolution? Part of the answer comes from a new, wide-ranging study by paleobiologists Melanie J Hopkins at the Museum fuer Naturkunde Berlin and Scott Lidgard at the Field Museum in Chicago. Their results are published this week in the Proceedings of the National Academy of Sciences (PNAS). While processes of evolution are largely...

2012-11-20 11:38:58

Johns Hopkins team first identified biochemical clue to therapy in brain scans of people with MS Johns Hopkins researchers report the successful use of a form of MRI to identify what appears to be a key biochemical marker for cognitive impairment in the brains of people with multiple sclerosis (MS). In follow-up experiments on mice with a rodent form of MS, researchers were able to use an experimental compound to manipulate that same marker and dramatically improve learning and memory....

2012-11-13 13:40:33

Fifteen science academies of Africa issued a joint statement in Lagos, Nigeria, today calling on the African scientific community to intensify its study of the impact of climate change. Noting that Africa's contribution of scientific information to understanding climate change has been "meagre" to date, the statement calls for African researchers to step up their observation, modeling, and analyses of the effects of climate change on a regional scale, and to help plan interventions to...

2012-11-06 03:38:23

New research suggests that just one or two individual herpes virus particles attack a skin cell in the first stage of an outbreak, resulting in a bottleneck in which the infection may be vulnerable to medical treatment. Unlike most viruses that spread to new cells by bombarding them with millions of particles, herpes simplex virus type 1 (HSV-1) – a virus that causes cold sores and genital lesions – requires just one or two viral particles to infect a skin cell in the first...

2012-11-02 14:33:03

UC Santa Barbara has reported an important discovery in the interdisciplinary study of split-brain research. The findings uncover dynamic changes in brain coordination patterns between left and right hemispheres. Split-brain research has been conducted for decades, and scientists have long ago shown that language processing is largely located in the left side of the brain. When words appear only in the left visual field —— an area processed by the right side of the brain...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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