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Tag: "large" at biology news

Research may provide new link between soft drinks and weight gain

...ati (UC) study provides new evidence that drinking large amounts of beverages containing fructose adds body fat, and might explain why sweetening with fructose could be even worse than using other sweeteners. Researchers allowed mice to freely consume either water, fructose sweetened water or soft drinks....

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

... thick, unexpectedly high numbers and varieties of large Arctic jellies, squid, cod, and other animals have...es; other sampling techniques turned up relatively large specimens, including sea cucumbers up to 20 centimeters long. In addition to collecting a large num...

Scientists map the world for nature conservation

...little known about the biodiversity that exists in large parts of Pakistan, Afghanistan, Iran, the north of China and, surprisingly, even Japan," adds Kier. Of all the different types of vegetation zone, the flooded savannas and grasslands are the least explored by botanists. Greater efforts are needed in ...

Natural tumor suppressor in body discovered by UCSD medical researchers

... to all cancers where Akt is elevated, "which is a large number of cancers," Newton said. ...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...s made now or in the near future are going to have large effects on health and environmental outcomes in th...sions from household fuel sources. They gathered a large database of current fuel use in African nations. Using this as a baseline, they defined multiple sce...

FDA Approves New Treatment for Chronic Hepatitis B

... Wallingford, Conn., has committed to conducting a large post-marketing study of Baraclude (entecavir) to evaluate the risks of cancers and liver related complications. ...

Discovery could be key to bioterrorism defense

... as Hendra, was initially isolated in 1999, when a large outbreak of encephalitis and respiratory illness occurred in Malaysia and Singapore, killing more than 100 people. Last year, two further Nipah virus outbreaks occurred in Bangladesh, killing roughly 75% of those infected. Scientists are disturbed by...

High-powered gene profiles provide clues to genes involved in common form of lung cancer

...know that the chromosomes of these cells contain a large number of irregular regions –?where genes have eit...copied over and over again –?which suggests that a large number of cancer genes remain to be discovered. The purpose of this study was to locate the likelies...

Random gene expression may drive HIV into hiding

... really was the best explanation, they conducted a large array of experimental controls to discount other h...ach other that random fluctuations can have such a large effect on eventual outcome, he explained. The researchers hope that understanding the molecular bas...

MIT engineers an anti-cancer smart bomb

...mall enough to pass through tumor vessels, but too large for the pores of normal vessels. Once the nanocell is inside the tumor, its outer membrane disintegrates, rapidly deploying the anti-angiogenic drug. The blood vessels feeding the tumor then collapse, trapping the loaded nanoparticle in the tumor, w...

The making and breaking of microtubules

...de; as they grow wider the ribbons close into very large helical tubes with a diameter of 500 angstroms, instead of the slim, 25-angstrom diameter of a microtubule (an angstrom is a ten-billionth of a meter, roughly the dimension of a small atom). Raised to body temperature, however, the protofilamentary ...

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

... ornithischian dinosaurs did not diversify and get large until the beginning of the Jurassic." "People have argued that there is a great diversity of dinosaurs in the Late Triassic, and this shows that they are not as diverse as many thought," Parker said. "Diversity is only found among the ancestors of t...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

... Shen. "On the other hand, protein-based drugs are large and bulky, which can prevent them from crossing th...rbed." To sidestep the difficulty of getting these large protein drugs through the GI tract intact, pharmaceutical scientists have looked at other ways to de...

Agilent Technologies introduces high-capacity human protein removal system for proteomics research

... ornithischian dinosaurs did not diversify and get large until the beginning of the Jurassic." "People have argued that there is a great diversity of dinosaurs in the Late Triassic, and this shows that they are not as diverse as many thought," Parker said. "Diversity is only found among the ancestors of t...

Certain fish have a special mating preference

...h spend 80 percent more time with males who have a large gonopodium. "A male with a larger gonopodium has ...odia size was larger, as there is minimal cost for large genitalia in that environment. Bigger is better for mating, but smaller is better for avoiding preda...

IMF Launches World’s First DNA Database for Myeloma Patients

...h spend 80 percent more time with males who have a large gonopodium. "A male with a larger gonopodium has ...odia size was larger, as there is minimal cost for large genitalia in that environment. Bigger is better for mating, but smaller is better for avoiding preda...

Improved statistical tools reveal many linked loci

...is, which tests for linkage between all pairs of a large set of genomic marker sites. The authors found that two-dimensional analysis is not only more computationally demanding than their new method, but also generates ambiguous results because it can be difficult to distinguish whether one or both of the ...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...most interesting things we found is that there are large numbers of proteins that don't resemble any other proteins we know about. Many are enzymes that function to maintain the correct structure of other proteins that are exposed to the unusually harsh acidic environment," added Michael Thelen, a protein ...

Speak up: Louder neurons form more connections

...ntually receded while neighboring neurons formed a large number of stable connections. When the fish were five days old, the green neurons had a smaller, less complex arbor than those of neighboring neurons. “We know that the arbor should occupy a certain amount of space, and in these fish it doesn’t take...

Big differences in duplicated DNA distinguish chimp and human genomes

...ape between chimps and humans can be attributed to large segmental duplications. Such large-scale genetic events have altered more total base pairs - about 2.7 percent of the genome - than differences from single base-pair changes, which account for about 1.2 percent of the genome. "For all the talk of t...

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