Tag: "killed" at biology news
Low dose radiation evades cancer cells' protective 'radar'
...tate and colon cancer cell lines and found that it killed
up to twice as many cells as high-dose radiation. The extra lethality of the low-dose regimen was found to result from suppression of a protein, called ATM* which works like a radar to detect DNA damage and begin repair. Theodore DeWeese, M.D., who l...
Old bones unearth new date for giant deer's last stand
...000 years or so, we still can't tell what actually killed
off these beasts. Man could have been the ultimate...e next question we need to address is what finally killed
them off, whether it was hunting, agricultural clearing of land or changes in climate or vegetation....
Society for Psychophysiology Research
... profile shootings in which unarmed Black men were killed
by police (e.g., Amadou Diallo, Timothy Thomas, Anthony Dwain Lee). Was race irrelevant to the police officers' decisions, or did personal and/or cultural stereotypes about Blacks contribute to the outcome? To examine this, investigators recorded ele...
Acoustics meeting in San Diego
...r systems to detect manatees, which are frequently killed
in collisions with boats (3aAB6). EXTREME SONO-EFFECTS New science and applications continue to emerge from the process of aiming intense ultrasound at liquid tanks to create collapsed bubbles that produce light (sonoluminescence) or perform desi...
New method studies living bacterial cells
...e tolerant of the contaminant, while it damaged or killed
the planktonic cells. In addition to determining the chemical differences between the cells, the work also pioneers a potentially revolutionary new technique for investigating microbiological systems in natural subsurface environments. This study ad...
Insects implicated in the evolution of new human infectious diseases
...ighly infectious diseases, such as the plague that killed
millions in the 14th and 17th centuries, evolve. ...ial bioluminescent bacteria. The bodies of insects killed
by Photorhabdus luminescens infection are left luminous. Genome studies have found close similariti...
Iraqi civilian deaths increase dramatically after invasion
...ilitary actions by Coalition forces. Most of those killed
by Coalition forces were women and children. However, the researchers stressed that they found no evidence of improper conduct by the Coalition soldiers. The survey is the first country-wide attempt to calculate the number of civilian deaths in Iraq ...
High-predator environment has unexpected impact on aging in fish
...edator counterparts. Secondly, as predators killed
guppies, they also reduced the population density of the survivors who, in turn, experienced higher food availability. More resources for the survivors can offset some of the predicted effects of higher mortality. Thirdly, fish living in th...
Avian cholera could spread from Great Salt Lake
...r are concerned that avian cholera, which recently killed
about 30,000 eared grebes--small, diving water birds--at Great Salt Lake, Utah, could spread as birds migrate south for the winter, the agency announced today. Last week, USGS scientists isolated Pasteurella multocida, the bacterium that causes avian...
Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
...o find food (ie kill or maim) while avoiding being killed
by predators. We show that food and predators together affect measures of chronic stress in song sparrows. These inseparable effects on the individual's physiology provide a link between the well-known effects of food and predators on behaviour and...
US trees affected by growing number of health concerns
...stems, and branches. Infected trees are eventually killed
due to multiple cankering that girdles the tree. I...was discovered in 1995, Sudden Oak Death (SOD) has killed
tens of thousands of oaks in forests of California and Oregon. The fungus-like organism that causes ...
What have scientists learned since Mount St. Helens erupted?
...xperienced diminished production as vegetation was killed
and the landscape was covered with nutrient-poor volcanic material. Within 6 years of the eruption, most lakes had returned to conditions typical of the undisturbed Cascade lakes. Whereas, by 2004, terrestrial systems had increased productivity, but ...
Essential oils could help to stamp out MRSA
Tests revealed that three essential oils killed
MRSA and E. coli as well as many other bacteria an...most deadly bacteria and fungi. Two of these oils killed
MRSA and E. coli almost instantly, while a third was shown to act over a longer period of time, mean...
Healthy mix of GI tract microbes are key to preventing allergies and asthma
...atory mice a five-day course of antibiotics, which killed
their gut bacteria, followed by a single oral introduction of the yeast Candida albicans. Increased growth of C. albicans in the gut is a common side-effect of antibiotics. After stopping the antibiotics, Noverr inserted ovalbumin a commonly used ex...
The giant eagle of Middle Earth
..., gripped the moa's pelvic area with one foot, and killed
with a single strike by the other foot to the neck or head. The eagle is thought to be the Hokioi of Maori oral history and is recorded in rock art, and artifacts shaped from eagle bone prove that the eagle co-existed with early Polynesians. Howeve...
Albatross study provides new information vital to their conservation
...r measures capable of reducing the number of birds killed
by 75-95%, depending on the type of fishery". By attaching tiny logging devices (geo-locators) to the bird's leg for 18 months or more, scientists at BAS found that most birds travelled from their breeding site off the coast of South Georgia to areas...
Sinking coastlines may precede large subduction zone quakes
... on the Richter scale and generated a tsunami that killed
dozens of people along the Pacific coast. Similarly, a core from a marsh in Oregon showed evidence of four large quakes over the past 3,000 years, each preceded by subsidence. Seismologists estimate that the period between megathrust quakes along the...
Columbia research lifts major hurdle to gene therapy for cancer
...s were unaffected. The same virus also selectively killed
human cancer cells from melanoma and ovarian, breast, and glioma (brain) tumors. Dr. Fisher's team is now altering the virus and developing additional viruses based on the PEG switch for use in clinical trials with patients. Other investigators assoc...
Population of rare gorillas may be increasing in war-torn Congo
...ounted up the numbers of gorillas we knew had been killed
during the war, we thought we might find fewer tha...ighting. Five years ago a survey team of ten was killed
by rebel fighters during attempts to demarcate the park border. For the park guards, the ability to...
Gene used in brain development can cause childhood brain cancers
...ved that the RNAi knocked down OTX2 expression and killed
the tumors cells which expressed OTX2. In contrast, the RNAi did not do any damage to the cells which did not express OTX2." Among the researchers working with Yan to investigate the OTX2 gene in medulloblastomas were, Chunhui Di, Shaoxi Liao M.D, P...
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