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Tag: "bigger" at biology news

Chemists create 'Superbowl' molecule; May lead to better health

...ted carrying capacity. "The compounds we made are bigger versions of these original bowl molecules," says study leader Michael Sherburn, Ph.D., a chemist with Australian National University in Canberra. "These new molecules have much greater capacity and selectivity than their predecessors and show more pr...

Timing is everything: First step in protein building revealed

...ve, and then a muchlarger shift, indicating a much bigger separation.To prove eIF1 was being released from the ribosome complex, theresearchers examined how fast the pieces of the ribosome come together,and how long it takes them to fall apart under various circumstances.Their results support the idea that ...

Flocking together: Study shows how animal groups find their way

... consistently chose the direction preferred by the bigger subgroup even if the two subgroups differed in size by only one member, demonstrating that groups can come to an accurate consensus decision even though individuals are not aware of the preferences of others or whether they are in a majority or minor...

Shift of weather patterns necessitates rethinking of reforestation methods

...expects this hot-and-drier trend to give an even a bigger advantage to containerized fall plantings over other methods. Economically, fall planting of containerized seedlings has other advantages. For example, there's less waste. Landowners are often to advised to over-plant in the spring because of the l...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...e miles (22,000 square kilometers) in 2002-an area bigger than the state of Massachusetts. "In the Gulf of Mexico, there's the possibility that hypoxia could occur at a local scale, which could be devastating to the shrimp and shellfish industries," Matson said. "Shrimp fisheries are very important economi...

Scientists discover global pattern of big fish diversity in open oceans

... rub shoulders in the pursuit of big fish and even bigger profits," says Callum Roberts of the University of York in the United Kingdom. "Conservationists are fighting to place some areas off limits to fishing. This study provides welcome advice on the best places to put them." Some have doubted that marin...

Oxygen increase caused mammals to triumph, researchers say

...al mammals," Falkowski says. "The more oxygen, the bigger the mammals. We argue that the rise in oxygen content allowed mammals to become very, very large - mammals like 12-foot-tall sloths and huge saber-toothed cats. They paved the way for all subsequent large mammals, including ourselves." The results d...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

...This study shows that long term training has a lot bigger effects than we thought. They followed Armstrong ?a well-known hard trainer ?and the changes in his efficiency over seven years are really quite amazing. We wouldn't be surprised if some major physiological changes happened, but here's a real quantif...

Monkeypox mystery: New research may explain why 2003 outbreak in the US wasn't deadly

...ca. If it had come from Congo, we might have had a bigger problem on our hands and very well might have seen patient deaths." Researchers from the University of Victoria, Washington University School of Medicine, U.S. Army Research Institute of Infectious Diseases, the University of Alabama, East Carolina ...

Microbe has huge role in ocean life, carbon cycle

...cling of carbon on Earth. In nature, apparently, bigger is not always better. In a publication today in the journal Science, scientists outlined the growing knowledge about SAR11, a group of bacteria so dominant that their combined weight exceeds that of all the fish in the world's oceans. In a marine en...

Life's origins were easier than was thought

...rmation and metabolic reactions) could have a much bigger genome than was previously thought: they could contain more than 100 different genes, each measuring 70 bases in length (bases are the units that constitute the genes and codify the information), or more than 70 genes, each measuring 100 bases. It is...

Cells direct membrane traffic by channel width

... the pure water channel; by making it a little bit bigger in the other channel both glycerol, as well as longer, linear sugar molecules, and water can permeate the channel." While channel sizes had appeared slightly different after crystallizing the proteins in the past, researchers believed the channels c...

Weapon performance determines mating success in the collared lizard

...These results counter the conventional wisdom that bigger is always better, and they support the hypothesis that weapon performance, which is likely to directly influence fight outcomes, has far stronger effects on fitness than size. The strong influence of weapon performance on reproductive success suggest...

DNA size a crucial factor in genetic mutations, study finds

...that copies DNA prefers a molecule that's slightly bigger than natural DNA, then it can accept mistakes more readily.'' For example, although T is supposed to match up with A, it might be inclined to pair with G, which has a slightly larger configuration. The sheer fact that a living system readily used a ...

Applying ecological laws to bacteria

...s confirms the ecological law that states that the bigger the area the greater the number of species present. Scientists previously thought that biodiversity at the microbial level, was fundamentally different to that of larger organisms, such as plants and mammals. This discovery implies that similar proc...

Researchers find gland that tells fruit flies when to stop growing

...ou sort of trick the fruit fly into thinking it is bigger than it really is." Enlarging the prothoracic gland produces much smaller-than-normal adult fruit flies, Riddiford said. "In humans, it would be as if you reached puberty when you were 6 years old." In the research, Mirth determined the critical we...

Retinal scans eyed for New Mexico show cattle

.... Encinias used a $3,000 retinal scanner not much bigger than a small video camera to record the IDs at three locations over a six-month period. To make the digital record, the cow is held in what's known as a squeeze chute and the scanner's eye-cup, specially molded for a cow's face, is held to each anima...

Sudden change in social status triggers genetic response in male fish, study finds

...ward dominance, these brain cells grow eight times bigger in volume and begin producing large amounts of the... has to be aware that he can change. This raises a bigger question about sophisticated social awareness in fish. After all, socialization requires more brainp...

New genetic test can detect clam disease

...ot of media attention this year, QPX is actually a bigger problem. The toxins that cause red tide in clams and other shellfish in New England do not kill the shellfish and will wash away once the red tide bloom diminishes, eventually making the shellfish safe to eat. QPX kills the clams, and there is no kno...

Creeping crinoids! Sea lilies crawl to escape predators, new video shows

...n them. The video and related studies help paint a bigger picture of the evolution and ecology of these deep-sea creatures and their predators. University of Michigan professor of geological sciences Tomasz Baumiller will show the videos and discuss the research Oct.16 at a meeting of the Geological Socie...

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