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Tag: "weigh" at biology news

Lack of enzyme turns fat cells into fat burners

...xplaining in part why the animals can eat more and weigh lessthan their normal counterparts, said Baylor College of Medicineresearchers.The report that appears online today in the Proceedings of the NationalAcademy of Sciences. "Westudied the fat cells in these mice bred to lack ACC2," said Dr. SalihWakil...

Solutions that reduce death of marine life reeled in by International Smart Gear Competition

...ommercial longline fisheries. Beverly's idea is to weigh down the main line with lead weights and release or "set" the baited hooks at depths deeper than 100 meters (328 feet), which allows longline fishermen to minimize encounters with sea turtles while maximizing their tuna catch. Successful testing of t...

Proposal would allow wild animals to roam North America

...ivate ranch in New Mexico. The tortoise, which can weigh up to 100 pounds and once thrived in Arizona, New Mexico, Texas and Mexico, now only survives in a small area of northern Mexico. Evidence shows that animals near the top of the food chain play important roles in structuring ecological systems and m...

Deep sea buffet for bone-devouring worms

...ge amount of organic carbon (one whale carcass may weigh up to 50 tons), approximately 2000 years faster than the usual mechanism of carbon deposition to the deep seafloor. The results of this study will aid understanding of the potential for adaptation between animals and microbes. ...

Bronx Zoo bears are new Samsonite gorillas

...her sources of food become a third less active and weigh up to 30 percent more than bears living under wild conditions. ...

Why Christmas trees are not extinct

... each twig, and then used an electronic balance to weigh water dripping out the other end. Then, based on the number of conduits and valves in twigs and their known dimensions, the biologists calculated the resistance to water flow of both the conduits and the valves. The scientists found that for condu...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...ope that people considering the use of these drugs weigh the long-term health risks and the serious potential for aggression and violence. Muscle mass and medals aren't worth the risk of hurting someone or landing in jail." Finally, researchers such as Melloni hope these new insights can lead to treatmen...

There's something fishy about human brain evolution

...nt of contention among anthropologists. Our brains weigh roughly twice as much as our similarly sized earliest human relative, Homo habilis two million years ago. The big question is which came first ?the bigger brain or the social, linguistic and tool-making skills we associate with it? But, Dr. Cunnane ...

First wolverine radio-collared in Pacific Northwest

...des," said Fitkin of WDFW. Wolverines (Gulo gulo) weigh about 20 to 40 pounds, depending on sex and age, and are the largest land-based member of the mustelid family that includes weasels, badgers, and otters. They are primarily found in boreal forest and tundra habitats in the far north, but also occur i...

The world's deepest dinosaur finding - 2256 metres below the seabed

...a species that could be up to nine metres long and weigh up to four tons. It lived in Europe and on Greenland 210 to 195 million years ago, at the end of the Triassic Period. The Plateosaurus at the Snorre offshore field had a hollow grave. The fossil, which was found 2256 metres below the seabed, represe...

Aspirin reduces cardiovascular risks in men and women -- but differently

...ents and their physicians to discuss the issue and weigh the benefits and potential drawbacks to this therapy," Berger said. "Also, aspirin should never replace other ways of reducing cardiovascular risks, such eating a proper diet and exercising." Of the six randomized clinical trials involved in the ana...

Contaminants linked to sturgeon decline in Columbia river

...ish, white sturgeon can grow to 20 feet in length, weigh more than 1,500 pounds and live for more than a century. The fish have always been an important food source for Oregon's Native Americans, and now as salmon runs diminish, white sturgeon fillets and steaks are increasingly sold in fish markets. But ...

Anti-inflammatory drug's potentially deadly side effect found to be rare

..., physicians and patients alike will first have to weigh the risks of a potentially fatal brain infection against the benefits that this drug may afford." A number of factors can affect the survival of patients with PML, but for now Clifford believes that developing a method to diagnose PML early in its ...

New study finds similarities between monkey business and human business

...rst option, and like humans, the monkeys seemed to weigh the losses more heavily than comparable gains. "Our results suggest that loss-averse behavior is a very general feature of economic choice," explain the authors. "Given our capuchins' inexperience with trade and gambles, these results suggest that ...

Major cancer study aims to identify protein markers for early-stage disease

... spectrometry: The instrumentation is not able to weigh an entire protein. The protein must first be cut, with an enzyme, into pieces. Once enough pieces of the puzzle are inputted into the database, it is expected that order will appear. The result could be the identification of biomarkers associated wit...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

...who carry normal copies of the gene but on average weigh 15 percent less when fed a low-fat diet. Further analysis revealed that when deprived of food for four hours prior to feeding with standard laboratory mouse chow, the knockout mutant mice ate about 25 percent less food than their normal siblings. T...

Complexity constrains evolution of human brain genes

...brain relative to their body size. Although humans weigh about 20 percent more than chimpanzees, our closest relative, the human brain weighs 250 percent more. How such a massive morphological change occurred over a relatively short evolutionary time has long puzzled biologists. Previous reports have ar...

New dwarf buffalo discovered by chance in the Philippines

...ter buffalo stand six feet at the shoulder and can weigh up to 2,000 pounds, B. cebuensis would have stood only two-and-one-half feet and weighed about 350 pounds. B. cebuensis, which evolved from a large-sized continental ancestor to dwarf size in the oceanic Philippines, is the first well-supported ...

Molecules in blood foretell development of preeclampsia

...ties. In such instances, physicians are forced to weigh the mother's risk of severe disease or eclampsia against the consequences of preterm birth for the baby. In the current study, the researchers present strong evidence that an imbalance of two proteins produced by the placenta is responsible for the...

New technique boosts size of proteins that can be analyzed

.... Researchers break up the protein into pieces and weigh both the masses of the whole protein and of the individual pieces. By matching the weight of the whole protein and its pieces with those of known protein sequences in a database, they can identify the protein. Any differences in mass with known prote...

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