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Tag: "hit" at biology news

DNA Molecules Used To Assemble Nanoparticles

...pes and other tools verified that these dendrimers hit their targets, were admitted into the cells and gave off their signaling light. The self-assembled dendrimer clusters were shown to be well formed and functional. "This is the proof-of-concept experiment," Choi said. But now that the assembly system...

A much-needed shot in the arm for HIV vaccine development

...HIV/AIDS pandemic.""Being from the continent worst hit by the HIV/AIDS epidemic that hasclaimed more than twenty million lives and wiped out decades ofdevelopment gains," said Pascoal Mocumbi, "I do believe that thisscientific strategic plan will not only accelerate the development of alifesaving HIV vac...

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

...establish that they come in backwards to the tree, hit and hang on, though they often tumble down the tru... the understory of the forest," he said. Once they hit the forest floor, he added, they're unlikely to find a chemical trail back to the nest, and most lik...

Unprecedented water level rise in Somalia

...being developed. On Sunday heavy rains and floods hit Hargeisa, the main city Somaliland. The floods washed away one of the two bridges in the south-western part of the city and damaged huts and houses on the banks of the river as well as electric power lines. The destruction of the bridge limits the ac...

US life expectancy about to decline, researchers say

...esity-related causes is about to rise. The hardest hit will be minorities, because of limited access to health care and because they have experienced the most rapid increases in obesity in recent years, according to the authors. It is well documented that obesity is associated with an increased risk of ...

No relief for Pacific Northwest drought

...r from the unusually dry weather that has recently hit the Pacific Northwest, according to new projections of drought severity and fire risk that are based on "general circulation" models that forecast global climate. The analysis, which was developed by researchers at the U.S.D.A. Forest Service and Or...

Researchers make gains in understanding antibiotic resistance

...es to avoid the effects of one drug, it still gets hit by another. However, in the case of these antibiotics, the binding sites are linked in one molecule. It's like a multi-drug treatment, but in one compound," he said. ...

First technology to remove prions that cause vCJD from blood launched

...lth authorities, starting with the nations hardest hit by vCJD, to help protect the safety of the blood supply and prevent the spread of this insidious disease." The new prion reduction filter will be evaluated by the United Kingdom (UK) National Blood Service and the Irish Blood Transfusion Service wit...

Road salt affects mitigation wetlands

...hwater wetlands. "We would like to know how big a hit these two wetlands are going to take from the salt. We see an effect on the midges in the runoff receiving wetland, but so far there is no effect on the slightly salty one," says Silver. "One thing we would like to see is what happens to bullfrog tad...

Low oxygen likely made Great Dying worse, greatly delayed recovery

...ey said. He calculated that when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the early Triassic period, sea-level oxygen content of less than 12 percent would have been the same as it is today in the thin...

Scientists reveal the shape of a protein that helps retroviruses break into cells

...ey said. He calculated that when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the early Triassic period, sea-level oxygen content of less than 12 percent would have been the same as it is today in the thin...

Currents could disrupt ocean food chain

... areas, such as the North Atlantic, the loss could hit 50 percent. The study was conducted by Andreas Schmittner, an assistant professor in the College of Oceanic and Atmospheric Sciences at Oregon State University. In his sophisticated computer model, Schmittner does not predict that the Atlantic Conve...

Researchers find gene that may be at root of potato blight

...ld." He added that the spread of P. infestans may hit developing nations particularly hard, as potatoes are a staple crop in many of these countries. P. infestans belongs to a group of destructive pathogens called oomycetes. Oomycetes aren't easy to categorize ?although they physically look like fungi,...

Ebola virus: from wildlife to dogs

... of the people infected. Seven such outbreaks have hit Gabon and the Republic of Congo since 1994, leading to 445 cases resulting in 361 deaths. Ebola virus thus constitutes a grave public health problem in these countries. No medicine or vaccine is currently available, only prevention and rapid control ...

Shark attack worries? Driving to the beach is more deadly

...es you hear reports of surfers having their boards hit by a shark, and it's probably because the board resembles the shape of a seal, which is a prime food source for sharks." McEachran says some common sense can go a long way in avoiding contact with sharks. "Sharks generally don't like to be around p...

New HIV drug candidate developed in Sweden

...es you hear reports of surfers having their boards hit by a shark, and it's probably because the board resembles the shape of a seal, which is a prime food source for sharks." McEachran says some common sense can go a long way in avoiding contact with sharks. "Sharks generally don't like to be around p...

Agilent Technologies introduces advanced zebrafish, mouse microarrays for stem cell and developmental biology research

...es you hear reports of surfers having their boards hit by a shark, and it's probably because the board resembles the shape of a seal, which is a prime food source for sharks." McEachran says some common sense can go a long way in avoiding contact with sharks. "Sharks generally don't like to be around p...

NASA probe could reveal comet life, scientists claim

..., they suggest. The mainly copper projectile will hit the comet at 25,000 miles per hour and will penetrate 15-20 metres into the surface before exploding. The comet will remain intact despite losing a huge amount of material ?100,000 tonnes from a 100 metre diameter crater, and the impact is not expect...

Gene silencing technique offers new strategy for treating, curing disease

...ter coming out of a yard sprinkler before they can hit the ground. While that's certainly possible, a more efficient way to staunch the streams of water would be to turn off the faucet. By targeting the chromosomal DNA directly, that's just what Dr. Corey and his colleagues accomplished. The researcher...

New tool reveals secrets of migrating cells

... The idea behind two-photon imaging is that if you hit a dye molecule in a short period of time with two photons of light, each photon half the energy needed to excite it, the dye can absorb them together and then fluoresce. The less energetic, long-wavelength photons will go deeper into the tissue, caus...

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