thousands 2 7

Tag: "thousands" at biology news

Techniques available to detect soil that inhibits destructive soybean pest

...sts were probably present in both areas as much as thousands of years earlier. The females of the species use a short, hypodermic needle-like mouth to pierce soybean roots and suck out the nutrients. As the adult female ages, she fills with eggs, turns yellow and then brown to become the nematode cyst. At tha...

OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis

...mage and has the potential to improve the lives of thousands of infants. " Additional collaborative research took place in the laboratory of Mahendra Rao at the National Institute on Aging, a component of the National Institutes of Health; and in the laboratory of Bruce Trapp at the Lerner Research Institute ...

Molecular Partners Required For Appropriate Neuronal Gene Repression

...mage and has the potential to improve the lives of thousands of infants. " Additional collaborative research took place in the laboratory of Mahendra Rao at the National Institute on Aging, a component of the National Institutes of Health; and in the laboratory of Bruce Trapp at the Lerner Research Institute ...

A step toward the $1,000 personal genome using readily available lab equipment

...ientists. The new technique calls for replicating thousands of DNA fragments attached to one-micron beads, allowing for high signal density in a small area that is still large enough to be resolved through inexpensive optics. One of four fluorescent dyes corresponding to the four DNA bases binds at a specific...

US/African project deciphers deadly parasite genome

...ern Rhodesia (now Zambia) were imported to replace thousands of animals that had been killed during a devastating outbreak of rinderpest. Nobel Prize winning German microbiologist Robert Koch, who had been sent to east Africa to study the disease, was the first to describe the T. parva parasite and made the f...

Picky female frogs drive evolution of new species in less than 8,000 years

... recontact can amplify the difference over several thousands of years to generate a distinct species. "The overarching question is: Why are there so many species in the tropics?" Moritz said. "This work has led me to think that the reason is complex topography with lots of valleys and steep slopes, where you ...

Costly breeding programs for endangered species pay off

...ons of dollars each year transporting rare animals thousands of miles in order to breed them with their most distantly related relatives. Some have questioned the need for such programs, which can stress rare animals, even to the point of death. Rice's results, which are available online, are scheduled to app...

Researcher says flu responders can learn from 1918 epidemic

...e only about 100 deaths from the flu, which struck thousands in Bethlehem." By contrast, Philadelphia found itself much less prepared for an epidemic, and the strapped with a corrupt head the Board of Health, saw roughly 13,000 residents die as the flu swept through the inner city neighborhoods. It repre...

Emerging staph strains found to be increasingly deadly and deceptive

...rol the bacterium's escape from neutrophils. Among thousands of S. aureus genes analyzed in the five different strains used in the study, the scientists identified a large group of genes whose role in helping spread infection is unknown. RML's Frank DeLeo, Ph.D., the investigator who directed the study, and co...

MicroRNAs have shaped the evolution of the majority of mammalian genes

...e authors of last January's Cell paper showed that thousands of human genes contain microRNA sites that are con...s that pair up with microRNAs. In addition to the thousands of cases where genes have avoided microRNA targeting, Farh also investigated the opposite extreme, c...

UT Southwestern researchers develop screening test for cells that activate immune system

...ng vaccines. The new screening technique can scan thousands and even millions of compounds to identify those that activate dendritic cells, which are on constant recon patrol throughout the body to scout out cancerous or infected cells and alert the immune system. "Our assay is unique from other conventional...

Plant genes identified that can form basis for crops better adapted to environmental conditions

...ject, they used micro-array technology, with which thousands of samples can be studied simultaneously. The development of capillary roots is important for sustainable agriculture Capillary root formation is controlled by both internal and external signals. This ensures that the root system adapts itself to...

Restaurant seafood prices since 1850s help plot marine harvests through history

...kelihood that bluefin tuna will recover; * How thousands of what were once frighteningly referred to as "sea wolves" (Mediterranean monk seals) that filled river mouths in the 14th century became a critically endangered species in the Atlantic today; * How fishing regulations imposed 800 years ago in t...

New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia

... something so quickly when otherwise it would take thousands of years," Horvat said. "It's really a neat picture of what evolution and natural selection can do." Although it's hard to predict, the work may have implications for people designing enzymes later on, he said. Using enzymes in reactions can greatly...

Chernobyl: The true scale of the accident

...ent with major health consequences, especially for thousands of workers exposed in the early days who received very high radiation doses, and for the thousands more stricken with thyroid cancer. By and large, however, we have not found profound negative health...

Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

...e same inputs. The Salk scientists found that the thousands of neighboring neurons that make up these columns are not the same, and they often don't communicate directly with each other. In February, they reported in Nature how excitatory neurons were organized into sub-networks that were found within the sam...

Extinct giant deer's descendant found in UK

..."The fact that DNA survives in fossil bone that is thousands of years old is an exciting bit of science in itself. Now we can analyse these ancient DNA samples from the bones of a mammal that has been extinct for over 8000 years and show that they are directly related to a living deer ?more importantly we've f...

Study Holds Promise For New Way To Fight HIV

..."The fact that DNA survives in fossil bone that is thousands of years old is an exciting bit of science in itself. Now we can analyse these ancient DNA samples from the bones of a mammal that has been extinct for over 8000 years and show that they are directly related to a living deer ?more importantly we've f...

Mouse genome much more complex than expected

...though the DNA encyclopedia only has a few tens of thousands of intelligible 'pages', the researchers counted more than 180,000 different mRNAs. 'The genetic information is arranged on the DNA in a very complex way,' Professor Zimmer concludes. For example, the 'copiers' in the cell nucleus combine the differe...

'Nanospheres' that block pain of sensitive teeth

...of the tooth is exposed. The dentine is made up of thousands of tiny fluid-filled channels which radiate outwards from the nerve endings at the centre of the tooth. Heat, some chemicals, and physical contact can cause the fluid in these channels to move ?in or out ?triggering the nerve endings and causing shar...

1 2 3 4 5 6 7 8 9 10