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Tag: "great" at biology news

Embryos tell story of Earth's earliest animals

... is good news," Raff said. "Embryo size tells us a great deal about the evolution and development of these ...ossil record goes from zero evidence of animals to great diversity in animal forms, including anomalocarids and trilobites. Harvard University biologist and ...

Whole-genome study at Johns Hopkins reveals a new gene associated with abnormal heart rhythm

... play a role in sudden cardiac death. "There's a great deal of evidence out there that having a too long or too short QT interval is a risk factor for sudden cardiac death," says the study's co-first author, Dan Arking, Ph.D., an instructor in the McKusick-Nathans Institute. "This makes it appealing to s...

Infection 'alarm' yields clues to immune system behavior

...which was refined through lab testing, should be a great help to medication makers. "Models like this are a wonderful tool for experimental drug testing," Levchenko said. ...

Learning to love bacteria: Stanford scientist highlights bugs' benefits

...s and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take the organisms with them to their graves." It's not that the organisms in question - such as the bacte...

Carbon nanotube absorption measured in worms, cancer cells

...Carbon nanotubes were discovered in 1991, and hold great promise in several areas, including pharmacology and for hydrogen storage in fuel cells, Weber said. But despite their promise, a big problem is that it's not known how multi-walled carbon nanotubes will impact the living environment, Weber said. "...

Scientists look to the Bahamas as a model for coral reef conservation

...s and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take the organisms with them to their graves." It's not that the organisms in question - such as the bacte...

Pacific Islands paradise protected

...and Aquarium research expeditions since 2000 found great marine biodiversity, including more than 120 species of coral and 520 species of fish, some new to science. Nesting seabird populations, as well as healthy fish populations and the presence of sea turtles and other species, demonstrated the pristine ...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...mental variation in human studies ?which is not as great an issue in animal studies." ...

'Bad' enzymes may wear white hats after stroke

...o work on all these projects," Wang said. "I had a great time, and a wonderful mentor." The first author on the Nature Medicine paper is Bing-Qiao Zhao, of the Neuroprotection Research Laboratory and Program in Neuroscience at Harvard. Authors Hahn-Young Kim, Hannah Storrie, Bruce R. Rosen, David J. Moone...

Pleasing plant shapes explained by new computer model

..., develop from primordial stem cells. "This was a great example of the synergy you can have between biology and computer science and how the tools of one discipline can be used to answer questions in another," said Prusinkiewicz, who specializes in computer simulations and visualizations in plant biology....

Horseshoe crab decline threatens shorebird species

...erious decline. At the same time, there has been a great reduction in the total population of red knots, the report notes. "The number of horseshoe crab eggs was the most important factor determining the use of the beaches by red knots. The availability of horseshoe crab eggs was even more influential than...

Genetic study shows humans have pushed orangutans to the brink of extinction

...first time that a recent and alarming decline of a great ape population--brought about by man--has been demonstrated, dated, and quantified using genetic information," says Goossens, a wildlife geneticist at Cardiff University who conducted the genetic study. "Developing effective conservation and recovery...

Skin disease common among Hispanic farmworkers in North Carolina, research shows

...cknowledge several skin diseases that should be of great concern, including skin cancer," said Arcury. "And personal susceptibility is used to differentiate one's self from others, usually to show superiority." Arcury said these beliefs need to be challenged in any programs designed to reduce occupational...

Human albumin from tobacco plants

...A. The plastidial system enables the extraction of great quantities of albumin. With nuclear transformation... is very easy to handle genetically and also it is great generator of biomass. The authoress of the thesis says that up to 100 tons of biomass per hectare ca...

Tastier tomatoes in the future?

...organic acids," Fernie says. These contents have a great influence on the taste of tomatoes. The scientists used molecular biological methods to identify parts of the tomato genomes responsible for biochemical changes. The researchers' findings could make it possible in the future to cross-breed wild toma...

Invasive species harms native hardwoods by killing soil fungus

...is the number one threat to biodiversity, there is great concern over the impact of accidental and intentional dispersal of alien invasive species across the globe," says Kristina A. Stinson, a plant population biologist at the Harvard Forest, Harvard's ecology and conservation center in Petersham, Mass. "...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...ack to the researchers via satellite. "They are a great animal for collecting oceanographic data and giving us updates on ocean conditions in the California Current," Costa said. The electronic tags are essentially miniaturized computers with various sensors on them. They can be fixed harmlessly onto th...

Relic of life in that Martian meteorite? A fresh look

Since the mid-1990s a great debate has raged over whether organic compounds and tiny globules of carbonate minerals imbedded in the Martian meteorite Allan Hills 84001 were processed by living creatures from the Red Planet. The materials have been under intense scrutiny ever ...

UCI researchers discover key factor for survival of human embryonic stem cells

Human embryonic stem cells (hES) offer great hope for the treatment of some devastating diseases, but finding a way to keep enough of these cells usable and healthy for transplantation in patients has been an ongoing problem. Now scientists at UC Irvine have discovered a way to keep large quant...

In the mind's eye: How the brain makes a whole out of parts

...he brain works. "Our ability to see is one of the great evolutionary accomplishments of the human brain," Connor said. "We still don't know how the visual system accomplishes this marvel of information processing. Such experiments are beginning to reveal how large networks of neurons in the brain extract ...

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