Tag: "began" at biology news
Tumor Suppressor Gene Located In Liver Cancer Cells
... produce functional protein. Next, the researchers began
the arduous process of screening the large gene for one or more mutations that might disable it. Using a method to detect mismatches in genetic material, they compared strands of DNA from tumor cells and surrounding normal tissue, and discovered mu...
Dating A Caveman
...koudian, not far from Beijing. In excavations that began
in 1921, archeologists and paleontologists have recovered the remains of at least 40 individuals belonging to a hominid species that used fire and crudely fashioned stone tools but was anatomically distinct from Homo sapiens. Working with professor ...
Children Become Gorillas In VR Zoo
...Zoo Atlanta team of scientists and educators first began
toplan a 'virtual zoo' three years ago," said Dr. Terry L. Maple, directorof the zoo and one of the world's foremost authorities on gorillabehavior. "We instantly thought of Georgia Tech as our design partner,and we are extremely impressed with the s...
Freshwater Sponges May Pose Threat To Zebra Mussels
...ase is related to the zebra mussel invasion, which began
in the late 1980s, said David Kelch, an associate professor with OhioState's Extension Sea Grant program. While the sponges probably will not pose a threat to the entire zebra mussel population, they appear to be lethal to mussels attached to some...
University of Cincinnati Biologists Find First Terrestrial Ecosystem That Survives Without Sun's Energy
...ent chemical signatures," said Kinkle. Sarbu first began
exploring the Movile Cave in 1986 followingits discovery by Romanian geologist Cristian Lascu. Theexplorations halted after Sarbu fled the oppression of theCeausescu regime, resuming in 1990. The current research is funded by the National ScienceFou...
International Research Team Clones New Skin Cancer Gene
... minimizing side effects.2 The search for the gene began
with studies of a rare hereditary disorder, nevoid basal cell carcinoma syndrome (NBCCS). People with this syndrome often develop thousands of skin cancers and may also have birth defects and childhood brain tumors. In 1992, Bale mapped the NBCCS...
NADC Examines TB In Cattle and Swine
...n of meatcontaminated by the organism. The project began
with studies determine ifswine could be used as an animal model of human tuberculosis. The researchersfound through their experiments that swine are susceptible to infectionwith M. bovis when inoculated. Lesions characteristic of tuberculosiswere v...
Core Spins Faster Than Earth, Scientists Find
... internal heat toward the surface, somemolten iron began
to solidify to create the dense, solid innercore at the center of the planet. Enormous pressure keeps theinner core solid in a region of temperatures in the range of 7,000degrees Fahrenheit and possibly much higher. Fluidiron in the outer core has co...
Humble Pocket Gophers Shed Light On The Genetic Fortitude Of Cheetahs
...t Stephen O'Brien of the National Cancer Institute began
exploring the genetic troubles of cheetahs in the early 1980s. Their skin-graft paper, published in Science on March 22, 1985, greatly impacted the field of conservation biology. The costs of genetic uniformity among cheetahs, the scientists theorize...
Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...." ATOC-Marine Mammal Research Program scientists began
gathering "baseline" data on whale behavior and distributions off the north shore of Kauai as early as 1993. One condition of federal permits to operate the ATOC sources is that if adverse effects are noted among marine mammals, the experiment wi...
Harvard, Duke Researchers Discover 'Off-switch' Inside Human Cells
...human cells. In their experiments, the scientists began
by screening a huge library ofhuman proteins to fi... also detected RGS10 in livinghuman cells, so they began
studies to understand its action. These test-tubeexperiments revealed that RGS10 did appear to be a ...
Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...ture." To learn how to regenerate mahogany, Snook began
studying the trees growingwithin a model forestry ...signs of old hurricane or fire damage. Snook then began
a systematic search for more sites of past disturbancesby conducting "oral history" interviews with ...
Genetic Makeup May Explain Why Some Women Smokers Develop Breast Cancer While Others Don't, UB Study in JAMA Reports
...ng gene. The risk was highest for women who began
smoking before the age of 18. The two genotyp...tion genotype. The risk was highest for women who began
smoking before the age of 18. Intensity of smoking -- the number of cigarettes smoked per day at tw...
Duke's Russian Laser Making Ultraviolet Light And Gamma Rays
... joined to the laboratory's electron ring, theOK-4 began
producing ultraviolet laser light late on Nov. 13.... In some split-second choreography, the Duke team began
producing gamma raystwo nights after they first manufactured ultraviolet laser light. The researcher...
Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival
...ockingbirds. The question for Anderson, who first began
examining siblicide in 1984 among the boobies that nest on Isla Espanola , the Galapagos most southeastern island, was why. Why engage in a behavior that would seemingly condemn the species to extinction? Why lay two eggs if the goal was only o...
Proteins Interacting With RNA And DNA Are Surprisingly Similar
... billion years, since the time whenhigherorganisms began
to diverge from bacteria. By comparison, thesimilar DNA-binding proteins, called homeodomain proteins, first emerged onlyabout 400million years ago, Draper said. In the cells of living organisms, L11 attaches to ribosomes,particles thatproduce protei...
Researchers Corral Millions Of Microscopic Membranes
...e nature of the interactions between cells. Groves began
working with supported bilayers in 1994. His first discovery was that scoring supported membranes with a pair of tweezers caused them to separate permanently. He took advantage of this characteristic to partition the membrane into triangles and squar...
Birds Deal With "Cocktail Party Effect"
...st under 80percent to about 85 percent. Hulse began
working with birds about 15 years ago, studyinghow the brain is able to separate a series of sights or soundsinto distinct objects, using them as landmarks. By learning howto arrange those sights and sounds into an order, called a serialorder, animal...
'BirdSource' Website For Citizen-Science Data
... 10,000-member citizen-science program FeederWatch began
reporting observations from feeders at homes and schools throughout the United States and Canada to http://birdsource.cornell.edu/pfw.htm . Eventually BirdSource, which is based at a national supercomputer center, the Cornell Theory Center in Itha...
NIH Team Discovers Endocrine Tumor Gene
...solated DNA. In 1994, the NHGRI researchers began
collaborating with NIDDK to search for the MEN1 ge...e the DNA. Drs. Collins and Chandrasekharappa began
the arduous task of cloning and sequencing the chromosome region. Over a two and a half year period...
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