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Tag: "biologist" at biology news

New Technique for Tracking Gene Regulators

...he cell ?we arejust beginning to decipher it,?said biologist John Dunn, who ledBrookhaven’s role in the research. “It’s as if we have in our hands agiant book of life, but we are barely beginning to learn how to readit.?“Our technique gives us a new way to index the code, to find the placeswhere regulators act...

Researchers reveal the infectious impact of salmon farms on wild salmon

...rge samples or the spatial aspect," says fisheries biologist Ransom Myers of the University of Dalhousie. "This study goes far beyond a theoretical model. They tested the model in the real world, using an enormous data set, and saw the same patterns. It is a very thorough analysis." "We've tried to be very ca...

Papers of DNA Pioneer and Nobel Laureate Francis Crick Added to National Library of Medicine’s Profiles in Science Web Site

...areer spanning more than 50 years, the theoretical biologist and biophysicist also made fundamental contributions to structural studies of important biological molecules through X-ray analysis; to our understanding of protein synthesis; to the deciphering of the genetic code by which hereditary information is ...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...y of Montana plant ecologist John Maron, and USFWS biologist Vernon Byrd. The study grew out of conversations b...stal waters for decades, and Byrd, the supervisory biologist for the Alaska Maritime National Wildlife Refuge. While working to save the endangered Aleutian Cana...

Nano-Probes Allow an Inside Look at Cell Nuclei

...urs on end. "Our work represents the first time a biologist can image long-term phenomena within the nuclei of living cells," says Fanqing Chen of Berkeley Lab's Life Sciences Division, who developed the technique with Daniele Gerion of Lawrence Livermore National Laboratory. Their success lies in specially ...

Photos show jaguar vamping for camera

...Perhaps he's just a big ham," speculated WCS field biologist Erika Cuéllar, who is helping coordinate the WCS jaguar survey. The Wildlife Conservation Society is working to protect jaguars throughout their range with projects in several Latin American countries designed to safeguard healthy populations of thi...

Cricket's finicky mating behavior boosts biodiversity

...ke choices," says Tamra Mendelson, an evolutionary biologist at Lehigh. "Changes in these preferences and choic...e Laupala cricket with Kerry Shaw, an evolutionary biologist at the University of Maryland. The thumbnail-sized Laupala spawns new species at the rate of 4.17 e...

Researchers find new genes necessary to make embryo

...tif in genetic networks," said Fabio Piano, an NYU biologist and lead author of the study, "in which genes in critical positions consist largely of older components while new functions added later provide additional layers of regulation to lend adaptive functions to these core networks." ...

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

...ets--the results of collaboration among a chemist, biologist and fisherman--was recognized as a runner up with ...se. Chemist Norm Holy from Pennsylvania, fisheries biologist Ed Trippel from Canada, and fisherman Don King from Massachusetts joined forces and developed gear t...

Road salt affects mitigation wetlands

...troyed during road building, but a Penn State Erie biologist is monitoring the salinity of the wetlands to see how the salt affects animals and insects. "I am currently doing research in wetlands that the Pennsylvania Department of Transportation constructed as mitigation wetlands to replace all the ones that...

Discovery clarifies role of peptide in biological clock

A biologist at Washington University in St. Louis is giving the VIP treatment to laboratory mice in hopes of unraveling more clues about our biological clock. VIP is not "very important person," but vasoactive intestinal polypeptide (VIP), a neuropeptide origin...

A New Species of Monkey is Discovered in Tanzania: The First in Africa for More Than 20 Years

...ighted by Richard Laizzer and observed by research biologist Trevor Jones, while working as field assistants for the project, the monkey was then identified as a new species by Ehardt and by Dr. Tom Butynski, who directs Conservation International (CI)’s Eastern Africa Biodiversity Hotspots Program. When Ehard...

At the molecular level, the predator is the prey

...ighly specific gateways for sodium ions," said IUB biologist Edmund Brodie III, one of the paper's coauthors. "... costly to the snakes," said Utah State University biologist Shana Geffeney, who conducted the gene expression experiments. "What will be interesting in the futu...

Determining The Fate Of Cells In The Human Body

...errors," said Dr. Firulli, who also is a molecular biologist at the medical school's Herman B Wells Center for Pediatric Research. "From a pediatrics perspective -- there are many congenital defects - holes in the heart, cleft pallet, webbed hands -- which are outcomes of inappropriate molecular programs due ...

Researchers reveal secrets of flying snakes

...n tree snake. In this study, Socha, who also is a biologist at Argonne National Laboratory, found that paradise tree snakes are true gliders, traveling further horizontally than dropping vertically. The best flight Socha recorded traveled 13 degrees from the horizon at the end of its trajectory. Socha correl...

Massey Cancer Center researcher helps to identify a piece of the cancer puzzle

A structural biologist from the Virginia Commonwealth University Massey Cancer Center, in collaboration with researchers at Memorial Sloan-Kettering Cancer Center, has identified the crystal structure of a protein that plays a role in supplying nutrients to solid tumors. ...

Malaria mechanism revealed

...him that this was a good project," says structural biologist Leemor Joshua-Tor of Cold Spring Harbor Laboratory, who led the research. A major pathway through which malaria parasites invade red blood cells is the binding of a protein on the surface of merozoites called EBA-175 to a receptor protein on the sur...

Scientists discover global pattern of big fish diversity in open oceans

...g that was buried," says Daniel Pauly, a fisheries biologist from the University of British Columbia Fisheries Centre. "The long-term trend of decline is not discernable at first because there are lots of things happening ?like the short-term effects of El Nino." "We know there are decadal patterns in climate...

The making and breaking of microtubules

...ll." Richard Rodewald, a program officer and cell biologist at the National Institute of General Medical Sciences, which funded the research, noted that "these studies provide a persuasive model, in elegant atomic detail, for how binding of GTP to a specific site in tubulin leads to far-reaching structural ch...

Certain fish have a special mating preference

A biologist at Washington University in St. Louis has shown that for some fish species, females prefer males with larger sexual organs, and actually choose them for mating. That does not exclude males with an average-sized sex organ, called a gonopodium. These f...

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