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Researchers trace evolution to relatively simple genetic changes

...opulations." The research with the wild fish also shows that the same gene is used whenever the low armor ...e when its gene is mutated in humans, and in fish, shows a major difference. The human protein suffers "a huge amount of molecular lesions, including deletio...

Scientists reveal molecular secrets of the malaria parasite

... expressiondata," says Carlton. "This project also shows the power ofcollaboration between international institutes with different areas ofexpertise. It was remarkably productive collaboration."...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...opulations." The research with the wild fish also shows that the same gene is used whenever the low armor ...e when its gene is mutated in humans, and in fish, shows a major difference. The human protein suffers "a huge amount of molecular lesions, including deletio...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...vely keeping oxygen out and doing it in a way that shows they know how to measure oxygen," Bradley said. "Their behavior indicates they are regulating oxygen." Bradley and Hetz will next work on developing a comprehensive model of insect breathing. "We'd like to expand our present model to explain all asp...

Scientists discover unique microbe in California's largest lake

...erited from the cyanobacterialparent."This finding shows that even this popular evolutionary chronometer ca... restoration projects.Wood says the discovery also shows that the Salton Sea, with its highload of nutrients, may provide an environment that allows this nov...

New SARS Protein Linked To Important Cell Doorway

...es for patient treatment. If further investigation shows orf7a is important to the SARS virus' ability to cause disease, scientists will already have much of the knowledge they need to develop ways to disable or weaken it. "The key to studying novel viruses used to be the ability to isolate the virus and ...

NC State scientist finds soft tissue in T. rex bones

...think," says Schweitzer. "Our preliminary research shows that antibodies that recognize collagen react to chemical extracts of this fossil bone. If further studies confirm this, we may have the potential to learn more not only about the dinosaurs themselves, but also about how and why they were preserved i...

New studies suggest airborne SARS transmission is possible

...nfectious Diseases. Another study, from Hong Kong, shows patients in hospital bays near a SARS patient had ...ontroversial," said Dr. Tong, "this important work shows beyond doubt that SARS coronavirus aerosol generation can occur from a patient with SARS." The Hong ...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

... the mountains to the ice shelf. But the new study shows the ice could not be thick at Siple dome, so ice must have flowed toward the ocean with a very gentle slope for more than 600 miles. An ice sheet with such a low profile and gradual decline would have had to have a very slippery bed to maintain its c...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

...res is a significant milestone for the PSI, and it shows an impressive return on the investment in the technology and methods for rapid structure determination,?said Jeremy M. Berg, Ph.D., director of NIGMS. “These structures are interesting in their own right and provide the basis for modeling many import...

Scientists identify new model Of NK cell development

...thor of the study, says research in his laboratory shows that the precursors to NK cells are actually found in cellular nurseries deep inside the body's lymph nodes. The findings, appearing in the Mar. 22 issue of the journal Immunity, may offer clinicians new direction in determining how to manipulate th...

The very unexpected life and death of a leukemic cell

... Journal of Clinical Investigation. This new study shows that leukemia cells are born at a fast rate and do indeed die. The slow rise in the cell count over time can be attributed to the difference between the birth and death rates of the cells, according to the study. The researchers at the Institute for...

Falling ants glide back to trunk to avoid dangers of forest floor

...s in the genus Cephalotes that I've dropped so far shows this gliding behavior, and they are by far the best gliders," Yanoviak said. But the long, cylindrical wasp-like Pseudomyrmecinae ants are also pretty good at it, as are several species of carpenter ants he recently dropped. "There are three species...

Scientists solve structure of key protein in innate immune response

... the receptor binds to its ligands. "Our structure shows that CD14 has a large hydrophobic pocket near its ...re among the most important targets. Our structure shows the shape of the LPS binding pocket of CD14. Now, drug developers will have better chance to design ...

World's largest rainforest drying experiment completes first phase

... they would shed their leaves. In fact, this study shows that the reaction to drought is instead a decrease in the rate at which tree trunks grew in diameter. Many small trees, measuring 4 to 10 inches in diameter, simply stopped growing during the end of the dry season of 2000, following the first period ...

Family trees of ancient bacteria reveal evolutionary moves

...earlier groups ?at least 2.5 microns. Blank's tree shows that several morphological traits arose independently in multiple lines, among them a sheath structure, filamentous growth, the ability to fix nitrogen, thermophily (love of heat), motility and the use of sulfide as an electron donor. "We will need ...

Implanted Devices Detect High-Risk Heart Failure Patients

..., chief of electrophsysiology at Duke. "This study shows that changes in heart rate variability just might be better in picking out those people at highest risk." In their analysis of 1,411 heart failure patients who received the CRT-D device, the researchers found a strong correlation between the heart r...

Self-assembled nano-sized probes allow Penn researchers to see tumors through flesh and skin

...mersome membrane has a hydrophobic core. The study shows that the fluorophores evenly disperse within this core, giving rise to a nanometer-sized light-emitting structure. "These polymers are also larger than phospholipids, so that there is enough space for the fluorophores, which are larger than the aver...

Bone Density Recovers After Teens Stop Injected Contraceptive

...acture or osteoporosis later in life. “This study shows that after adolescents stop using DMPA, their bone density can increase to levels comparable to those of other women in their age group,?said Duane Alexander, M.D., Director of the NICHD. The study authors wrote that 10 percent of U.S. female adoles...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

New research shows that farmers who used agricultural insecticides experienced increased neurological symptoms, even when they were no longer using the products. Data from 18,782 North Carolina and Iowa farmers linked use of insecticides, including organophosphates and...

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