Tag: "were" at biology news
Human-Like Ability, Categorical Perception, Found In Insects
...s would be tricky. His flight chamber experiments were
showing that playback sounds mimicking cricket cal... a variety of sounds. Sounds between 5 and 16 kHz were
different enough (from 20 kHz ) to change the insects' behavior, he demonstrated, and 16kHz was the ...
Newly Discovered Bacteria Produce Magnetic Material
... under a scanningelectron microscope. The bacteria were
discovered by Tommy Phelps of ORNL's Environmental...teria, which also metabolize hydrogen andpyruvate, were
found in groundwater and drilling mud; the Taylorsvillebacteria were
present in subsurface shale and...
Duke Primate Center Sets October Expedition To Find 'Juliet'
...d another unrelated male Oberon. The three animals were
the firstdiademed sifakas ever brought into captiv..."submonkeys," are descended from primates thatalso were
ancestors to the anthropoids, a suborder that includes monkeys,apes and humans. Thus, studying prosi...
Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...;n peninsula. She found that mahogany trees there were
sparsely dispersed among otherspecies at an averag...t Snook couldn't find was equally important. There were
no mahogany seedlingssuccessfully growing under the forest canopy. Any seedlings she found wereinste...
How Birds Sing
...y in different areas of the brain. The researchers were
able to show for the first time that structures hi...eadgear with brain electrodes. The four electrodes were
poised above a region called the HVc, known to be part of the bird's song production system, or anot...
PET Project Helps Reduce Pollution Threat From Heavy Metals
...llutants arepresent. Those same stormwater samples were
used to test the lab-scale PET system, so the researchers expect the field-scale modelwill work effectively and inexpensively. "Our laboratory work has shown great promise for what weintend to do in the field with this prototype PET installation.We t...
Discovery Of Cell Sites May Shed Light On How Bodily Systems Interact
...ate animalgrowth and disease. First, the receptors were
found on cells in the pituitarygland, and, second, they were
on somatotrope cells, which make growth hormone.Previous theory held that they were
on corticotrope ...
Discovery Could Help Understand Breast-Cancer Therapies
...of The Journal of BiologicalChemistry. The authors were
Katzenellenbogen, who on Oct. 18 will receivethe 1996 Komen Scientific Distinction Award from the Susan G. Komen BreastCancer Foundation in Dallas; her husband, John Katzenellenbogen, professorof chemistry; Kirk Ekena, postdoctoral researcher; and Ka...
Component In Soy Products May Be Substitute For Estrogen Treatment
...a substitute for estrogen treatment. The findings were
presented Sept. 16 in Brussels, Belgium, by Univer...d cholesterollevels in men who used a similar diet were
cited in the Aug. 3, 1995, issueof the New England Journal of Medicine as evidence of soy protein's ...
New Software Provides Quick Analysis of ion-Channel Activity
...r that researchers will be able to try things that were
too painfully slow to even try before, said Frederick Sachs, Ph.D., professor of biophysical sciences at UB and principal investigator. Co-investigators are Anthony L. Auerbach, Ph.D., associate professor of biophysical sciences at UB, and Qin Feng, ...
Newly Discovered Gene Halts Cell Division and May Have Cancer Link
... of MAD2 expression compared to control cells that were
resistant to both drugs. The drugs may be especially effective in the treatment of tumors with a defective checkpoint, Dr. Benezra says. That's because the drugs, coupled with the faulty checkpoint, so completely dismantle a cell's ability to divide...
Researchers Find Genetic Clues To Intestinal Disease
...ther and sister. Another 32 such pairs of patients were
identified through a multi-center survey. Among t...Gastroenterology that Crohn's disease patients who were
younger than 20 years when diagnosed were
more likely to have a family history of Crohn's disease, m...
'Juliet' Evades Primate Center Expedition
DURHAM, N.C. -- Duke University primatologists were
unable to capture amate for the rare lemur called ...ted groups of rare diademed sifakaslike Romeo, but were
unable to come close enough for a capture. The diademed sifaka is the largest living lemur and cons...
Behemoth Animals May Follow Same Extinction Patterns
...hants." Cuffey notes that both groups of animals were
the largest creatures of theirtimes and probably had few natural enemies. The cause of their demise wasprobably not one single element, but a complex mix of factors that effectedfood supply and habitats. Because the proboscidean decline is more recen...
Changing Continental Runoff Patterns Could Change Ocean Circulation
...this warmer water globally, we believe that there were
deep water formation sites in the subtropics." While the general circulation model used by Bice does not yet mirror history, it does show that changes in surface salinity will affect circulation patterns. According to Bice, it is not just the ...
NCAR Scientist Models Earth's Climate and Vegetation Patterns At Last Glacial Peak
...ted in South America and Africa, as now, but there were
fewer trees globally. The whole world was colder i...om the existence of the continental ice sheets and were
intensified by reduced amounts of atmospheric carbon dioxide, which insulates the earth by trapping ...
NCAR Scientists Trek To Africa For Biosphere-Atmosphere Chemistry Study
...linger and colleagues met a truck and trailer that were
shipped across the Atlantic; drove them across Cameroon; and then accompanied them on a barge up the Sangha River to the Ndoki site, located near one of Africa's most-remote and best-preserved rainforests. To sample the African atmosphere, EXPRESSO i...
North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
...he structure of craters on the moon and Venus that were
created whenobjects struck those heavenly bodies at oblique angles. Venus's thick atmosphere holds in place gases emitted from a crater after animpact. The researchers studied images of these corked-in Venusian vapors,which show that gaseous materia...
An Equal Opportunity Extinction? Cincinnati Geologists Find Global Impact from Permian Die
...ndhigh-diversity marine environments such as reefs were
hit hardestduring mass extinction events. Cooler a...ller examined data on articulatebrachiopods, which were
diverse groups at the time, they found notrend at all. "Early on, I expected to see that the tropics...
Scientists Identify Retrovirus-Like Components In Corn Genome
...," Bennetzen says. "For example, if these elements were
inserted into genes in such a way as to cause mutations, you could wind up with more than 30,000 mutations per individual plant, and a dead host." Instead, the retrotransposons insert themselves in positions where they tend to be inactive, allowing t...
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