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Tag: "yet" at biology news

World's leading scientists announce creation of 'Encyclopedia of Life'

...dite the classification of the millions of species yet to be discovered and catalogued as well. The pages, housed at www.eol.org , will provide written information and, when available, photographs, video, sound, location maps, and other multimedia information on each species. Built on the scientific ...

Study offers clues to 'Broken Heart Syndrome'

...p guide long-term treatment. "Because we don't yet know what causes this phenomenon, we don't know what the best long-term management should include," he said. "As we gather more information on these patients, we can start to understand who is affected by Takotsubo cardiomyopathy, offer more focused ...

Female-led infanticide in wild chimpanzees

...in chimpanzees. What drives the behavior is not yet clear, but may stem from demographic shifts that alter sex ratios and put increased pressure on females competing for foraging areas. In their report, the authors note that the Sonso community had experienced a significant population increase in the ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...e of 2 kHz, according to some acoustics textbooks, yet some skilled trumpet players are able to hit those frequencies. In addition, he says, manufacturers and teachers sometimes incorrectly apply the concepts of fluid dynamics to the study of brass instruments, giving improper scientific authority to so...

Spud origin controversy solved

...recreate the European potato from Andean landraces yet it may have originated from Chile,?said Spooner. “If the true origin of the European potato was from Chile, rather from the Andes, it shows the value of plant evolutionary studies to understand and complement breeding programs? Spooner and other s...

Left-right wiring determined by neural communication in the embryonic worm

...mething was happening earlier that researchers had yet to figure out. Bargmann, who also is an investigat...arried out by a gene that makes gap junctions. And yet strangely, as far as worm researchers knew, no gap junctions existed anywhere on adult worm AWC neur...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...le wasting. The authors caution that they have not yet found a way to tweak the switch, known as PGC-1alpha, in humans. “I think that if we could elevate the levels of PGC-1alpha in the muscles of patients with Duchenne muscular dystrophy, it is likely that we could slow or reduce the course of the di...

Corals that can fight global warming may one day help fragile reefs

...l disease is unclear. "It is difficult to pinpoint yet how temperature stress decreases the immune response," said Harvell. "Although corals are near the base of the evolutionary tree, they are complicated animals." The complexities arise from different levels of symbiosis within a coral, both with bac...

Genome sequencing reveals key to viable ethanol production

... one step, but is not used at the industrial scale yet because the first step, breaking down the plant’s cellulose, is much too inefficient. The key, Wu surmised, is to find out what enzymes the bacterium uses to accomplish its feat, and then boost its ability to produce those enzymes. The problem, howev...

Genetic fingerprints identify brain tumors' origins

...r unique cellular origins," Gutmann says. "This is yet another factor we need to consider when trying to understand how pediatric brain tumors form." Researchers use information about tumor origins to develop new tests and treatments for the tumors. Brain tumors are the leading cause of cancer-related...

Stanford-led study closes in on genes that may predispose some people to severe depression

...eveloping severe depression, but researchers have yet to pin down the genes responsible. Now, a specifi...lop depression as men, although the reason is not yet known. "We don't think depression is entirely genetic, by any means, but there are important gen...

Biodiesel study targets cleaner air, cleaner engines

...ed on agricultural machinery in Canada and has not yet been widely used by farmers. It is hoped the research results ?expected in early May ?will help increase demand for biodiesel, which in turn will increase market opportunities for recycled materials and oils and give farmers the chance to grow some o...

2 brains -- 1 thought

...een other networks with an even simpler structure, yet possessing the same dynamics? Is it possible that many more networks fulfilling the same functional and structural conditions could have evolved? There is still no definite answer to these puzzles; however, with the help of the new methods developed ...

Male-killing bacteria makes female butterflies more promiscuous

...the numbers of male butterflies can get so low and yet the population is still sustainable and stable. You don't need many male butterflies to continue the population successfully. This is partly because the decision to mate is mainly under female control and because males have a high mating capacity." ...

Aspirin discovery may improve cancer treatments

...s such as cancer, but the way aspirin works is not yet fully understood. In a paper published in the prestigious Journal of Biological Chemistry in April, Professor Bryan Williams, Director of the Monash Institute of Medical Research, led a collaborative study that investigated the effects of salicylat...

Need oxygen? Cells know how to spend and save

...he swap for COX4-2 occurs when the sensor turns on yet another gene that produces an enzyme to specifically chew up COX4-1. Engineering human cells to lack this enzyme and subjecting them to low oxygen, the scientists found the cells unable to rid themselves of COX4-1. "It's remarkable that the one-c...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...r of the paper, explains that although they do not yet understand the precise mechanism behind this suboptimal development in male twins, its existence is clear. "When siblings in a litter vary in sex, maternal investment should be sex-specific, meaning that the male foetus grows bigger than the female. ...

Type of stem cell found to reside in transplanted lungs

...e cells in lung transplantation. That study is not yet complete, but so far it indicates a very strong ab... roles of these cells in chronic lung diseases are yet to be fully defined, but will be an active area of research in years to come." ...

How appetite-stimulating brain cells work overtime during fasting

... the regulation of food intake." While it is as yet unproven, the rise in UCP2 in the brain likely also causes changes in temperature in the same way that UCP1 does in brown fat, Diano said. "It's possible that heat may act like a neurotransmitter of a sort," Diano said. Neurotransmitters are chem...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...ng to Brown, the details of specific projects have yet to be determined. He estimates the research program will involve 10 faculty members plus graduate students in the first year with additional researchers added in subsequent years. He noted that ConocoPhillips turned to Iowa State as a research partne...

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