closely 2 5

Tag: "closely" at biology news

Researchers uncover E. coli's defense mechanism

...thogenic strain of Escherichia coli, which is very closely related to Salmonella bacteria. The pathogenic forms of E. coli and Salmonella are usually transmitted to humans through undercooked meat, unwashed vegetables and cross contamination from surfaces on which these foods were prepared. Infections from ...

For first time, brain cells generated in a dish

...ays to attempt neurogenesis have been unable to so closely duplicate the natural process. They also haven't allowed scientists to monitor the entire sequence of cell development from primitive states to functional neurons and expose the electrophysiological properties of the cells. A little more than a deca...

Analysis of flower genes reveals the fate of an ancient gene duplication

... replace stamens and carpels. AG and PLE are very closely related genes, and they clearly have nearly identical function, suggesting that they are derived from the same single gene inherited from a common ancestor. However, analysis of synteny in the AG and PLE regions unambiguously showed that AG and PLE a...

Virologist finds contagious equine flu in dogs

...utions that the newly discovered flu virus must be closely monitored. With close to 100 percent of dogs exposed to the virus becoming infected and about 80 percent of infected dogs showing symptoms, the flu could be spreading throughout the country. It was originally documented in greyhounds at tracks and k...

What comes first…the chicken, the egg, or the bad attitude?

...o other broiler breeders research program works as closely with individual birds. The research team has shown the importance of recognizing that large poultry populations are made up of a collection of individuals--each with their own way of balancing their growth and reproductive priorities. "Building defin...

Energy management in cells may hold key to cancer defense

... Cellular Biology Program at Dartmouth. Working closely with scientists at St. Vincent's Institute in Australia and Duke University, the DMS team concluded that two kinases in these cancer cells, CaMKKα and CaMKKβ, are able to regulate AMPK independent of LBK1. "With the addition of these two k...

AACR Favors 'full spectrum of stem cell research biology'

...Johns Hopkins University, "The United States is so closely associated with scientific advancements that the first question on everyone's mind was, 'why wasn't this huge medical breakthrough made by Americans?' "Sadly," he continued, "American stem cell biology suffers from a small and unsteady flow of gradu...

From a Few Wild Ancestors, a Citrus Cornucopia

...cimens of unknown origin and differentiate between closely related species. Of the roughly 900 total accessions, about 400 of unknown, but probable, sexual origin were studied. The others were either known to be crosses from breeding programs or mutations from a parent tree -- so they wouldn’t differ enough...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...ide emissions from fossil fuel combustion are most closely linked to major population centers and show up in the satellite's ozone-monitoring measurements of nitrogen dioxide, part of the nitrogen oxides family. Other satellite instruments can detect large fires and the resulting emissions also can be measur...

New technique could alter field of mouse genetics

... genes into mice and other organisms that are more closely related to people. PiggyBac was originally identified in the cabbage looper moth. Unlike many mobile genetic units that work only in their native hosts, piggyBac can flit around the genomes of other insects. For that reason, it has been used experim...

UCLA researchers identify key enzyme linked to childhood blindness

...examining the function of other proteins that work closely with Rpe65. Mutations in the genes for these interacting proteins are linked to other forms of human blindness. "These results settle the long standing mystery about the identity of the retinoid isomerase," Travis said. "Scientists have been searchi...

Skull study sheds light on dinosaur diversity

... surface of their snouts," said Wilson, who worked closely with U-M Museum of Paleontology artist Bonnie Miljour over the course of a year preparing the paper's many illustrations of the skull reconstruction. "Blood vessels and nerves passed through these holes and may suggest an especially sensitive snout. ...

New tooth enamel dating technique could help identify disaster victims

... plants, the carbon-14 concentration in our bodies closely parallels that in the atmosphere at any one time," he said. Buchholz and his colleagues analyzed 33 teeth from 22 different people whose ages were known. The enamel separations were done at the Karolinska Institute, and sample preparation and accele...

New discovery blurs distinction between human cells and those of bacteria

... repeating pattern of six protein molecules packed closely together. "We didn't know six would be the magic number," Yeates said. "What surprises me is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space...

Nighttime Dying Linked To Sleep Apnea From Brain Cell Loss

... repeating pattern of six protein molecules packed closely together. "We didn't know six would be the magic number," Yeates said. "What surprises me is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space...

Field tested: Grasslands won't help buffer climate change as carbon dioxide levels rise

... repeating pattern of six protein molecules packed closely together. "We didn't know six would be the magic number," Yeates said. "What surprises me is how nearly these six protein molecules fill the space between them. If you take six pennies and place them in the shape of a ring, that leaves a large space...

Birds and bats sow tropical seeds

...ience at Stanford University. The group will work closely with UNAM, the Universidad Nacional Aut�noma de M�xico, which owns and runs the Veracruz biological station. "The point of the project is to restore diversity to agricultural landscapes," said Howe. "We'll test the proposition that immigration of tr...

Elusive salamanders have role in developing new sampling models

...ng effectiveness of the different methods, looking closely at cost, and also use several sites to calculate the best approach to estimate juvenile abundance. Meanwhile, Hargrove and local biologists will gather physical data about the ponds and their watersheds combined with the presence or absence of salama...

DNA traces evolution of extinct sabertooths and the American cheetah-like cat

...nary history of the extinct American cats has been closely studied by palaeontologists, but it has been diffi...y on from the ancestors of modern cats and are not closely related to any living felid species. The phylogenetic tree drawn from the new data also shows that ...

Researchers develop new testing methods for potential monkeypox or smallpox outbreak

... monkeypox outbreak in the Midwest -- monkeypox is closely related to smallpox. This new information suggests that the 2003 outbreak was larger than the 72 cases reported by the Centers for Disease Control and Prevention (CDC). The research was released online this week by the medical journal Nature Medicine...

1 2 3 4 5 6 7 8 9 10