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Tag: "paper" at biology news

Male reindeer inflate a large air sac in the neck region to emit their hoarse rutting calls

...ntinues to develop. The authors of the research paper further explain that the rutting calls appear to be understood by rival males as an indicator of the caller's fighting ability. By contrast to male red deer, who are renowned for roaring with the head elevated, male reindeer emit a hoarse rattling...

How trees manage water in arid environments

...cience Foundation. __IMAGE_2 In a forthcoming paper in the Journal of Arid Environments, which is avai... photosynthetic activities of the vegetation. This paper is the first step in that process, and it illustrates the seasonal characteristics of the forest veg...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

...ew therapies for diabetes and possibly obesity. A paper published online today in the journal Science details this structure, helping to explain one of the cell's most basic and critical processes. "Understanding this important protein's molecular structure and mechanism provides a major step forward f...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

... that will be cost-effective alternatives, such as paper pulp, sawdust, straw and grain hulls. A UWM professor recently helped DOE do just that by analyzing the DNA of a bacterium that can break down cellulose, the major structural component of plants that is also found in forestry by-products (including ...

A genetic 'gang of 4' drives spread of breast cancer

... growth and spread to the lungs. Co-authors on the paper were from the University of Chicago, The Netherlands Cancer Institute, Veridex L.L.C., The Cleveland Clinic and the Erasmus Medical Center in The Netherlands. "There has been an undeniable link between tumor size and growth and metastatic risk, but...

How fish species suffer as a result of warmer waters

...e-induced alterations in marine ecosystems. The paper 'Climate change affects marine fishes through the oxygen limitation of thermal tolerance' is published on January 5, 2007 in the scientific journal Science....

Researchers find gene mutation that causes infertility in male mice

...r for Vertebrate Genomics and senior author of the paper published in the current issue of the Public Library of Science journal PLoS Biology. Laura Bannister, a research associate in Schimenti's laboratory, is the paper's lead author. "Consequently, we know very little about the genetic causes of infert...

Microbes start immune response by sneaking inside cells

...ry diseases. The researchers report in the new paper how cryopyrin is activated to start the process. In experiments that exposed mouse immune cells called macrophages to bacteria, Thirumala-Devi Kanneganti, Ph.D., a U-M research investigator in pathology, and Mohamed Lamkanfi, Ph. D, a U-M research fe...

Why aren't humans furry? Stone-Age moms could be the answer

...ription#description ), who died in 2003. Harris' paper describes Stone Age societies in which the mother ...of the 'red hair gene'. Professor Rees said: "This paper is an excellent example of the kind of bold thinking and theorizing which David Horrobin intended to...

Shedding new light on proteorhodopsin

... source. The results of this study appear in a paper published by the Proceedings of the National Acade...richia coli with proteorhodopsin. Co-authoring the paper with Liphardt were UCB graduate students Jessica Walter and Derek Greenfield, and Carlos Bustamante,...

How badger culling creates conditions for spread of bovine TB

...hrough perturbation. The results presented in this paper lend weight to this argument." "The development of successful strategies for the control of TB in badgers and transmission to cattle will require serious consideration of the likely impact of any interventions on badger social organization," the a...

Scientists find method to pick noncompetitive animals, improve production

...ong both individual animals and groups. The second paper refines the methodology and validates it by applying the tool to a flock of chickens. In previous research, Muir showed that choosing less aggressive animals from a group for breeding purposes increases productivity. In the latest research, the sc...

MicroRNAs as tumor suppressors

...levels of HMGA2 expression and tumorigenesis. This paper establishes that HMGA2 is a target of let-7, and that the let-7 microRNA functions as a tumor suppressor to prevent cancer formation in healthy cells....

New findings blow a decade of assumptions out of the water

...Washington research assistant and lead author of a paper in the Jan. 11 issue of Nature. The new research, for example, indicates that the inventory of nitrogen in the oceans is likely to be less subject to major fluctuations than had been assumed. Because it has been thought that nitrogen fixation is l...

Climate change could trigger 'boom and bust' population cycles leading to extinction

...ating the influence of global climate change. In a paper that appears in the May issue of The American Naturalist, Wilmers describes a powerful new mathematical model that evaluates how climate and resources interact with populations, including a fine-grained analysis of impacts on juveniles, reproducing a...

Protein overexpression at heart of heart failure

...ophysical phenotype has remained unknown.3,4 In a paper in this week’s PLoS ONE, Roger Hullin of the Swiss Heart Center Bern, Jan Matthes of University of Cologne, Germany, and collaborators in both Germany and the USA demonstrate an up-regulation of expression of an accessory subunit of the L-VDCC comple...

Scientists find potential 'off-switch' for HIV virus

...erger and Shenk share their findings in a research paper appearing in the Dec. 26 issue of the online journal Public Library of Science Biology. "We have helped understand how HIV can turn off, and in doing so I believe we've uncovered an important component of the biological switch," said Weinberger, a...

New biofuels process promises to meet all US transportation needs

...ydrogen-carbon economy," is detailed in a research paper appearing online this week in the Proceedings of the National Academy of Sciences. The paper was written by Agrawal, chemical engineering doctoral student Navneet R. Singh, and chemical enginee...

Gene that makes people 'early to bed and early to rise' demystified

...'s how we thought the system should work. But this paper shows that is not the case. It comes back instead to the transcription level as the most important step." FASPS is a relatively rare, inherited condition in which people are "morning larks," with early morning awakening and early sleep times. Peopl...

Large size crucial for Amazon forest reserves

...cy is based on sound science. The results in this paper confirm the importance of this action and other, similar efforts to conserve forested regions. ...

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