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Tag: "tracked" at biology news

Researchers shed light on shrinking of chromosomes

...cular Biology Laboratory (EMBL) for the first time tracked chromosome condensation in mammalian cells over the entire course of cell division. In this week’s advanced online publication of Nature Cell Biology they report crucial new insights into timing, function and molecular basis of chromosome condensatio...

Scientists close in on missing carbon sink

... tons per year. However, ground-based studies have tracked only about half that amount, leaving scientists to speculate about a "missing carbon sink" in the north. Stephens and his collaborators set out to test how well the models captured carbon sinks, focusing in particular on estimates produced by a re...

How to look at dinosaur tracks

...tracks may be filled with sediment or the original tracked surface may have eroded away. In the latter case, erosion may expose prominent layers of concentric circles extending from the former location of the true track. These “undertracks?reveal the squishing and displacement of sand when the heavy dinosaur...

US control strategies may make flu epidemics worse, UCLA study shows

...ns as an adaptive process of trial and error. They tracked both individual-level decisions and population-level variables ?that is, the yearly vaccine coverage level and influenza prevalence, where prevalence is defined as the proportion of the population that is infected. The individual-level model was base...

Healthy coral reefs hit hard by warmer temperatures

...by University of North Carolina (UNC)-Chapel Hill, tracked an infection called white syndrome in 48 reefs along more than 900 miles (1,500 kilometers) of Australia's coastline. The colorful coral colonies that attract visitors to the Great Barrier Reef live atop a limestone scaffolding built from the calc...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...ning nearly 6600 hours of voice data). The project tracked 31 teachers over two weeks and recorded their voices during all waking hours. The data captured voice-production events as short as 0.0316 seconds and as long as 100 s. On average, the teachers had 1,800 occurrences of voicing per hour at work, compa...

In Iran, cheetahs collared for the first time

...is highly endangered population of big cats can be tracked by conservationists. Once found throughout the continent, Asiatic cheetahs now live only in extremely arid habitat on the edges of Iran's Kavir Desert. WCS's government partner in Iran, the Department of Environment/CACP project estimates their rema...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...patients' health and the causes of any deaths were tracked for up to three years. After that time, the data were analyzed by researchers from the University of Michigan Cardiovascular Center and VA Ann Arbor Healthcare System, in cooperation with the Ohio team. In all, 67 percent of patients had posi...

World's largest flower evolved from family of much tinier blooms

...e botanical tree of life in the past 25 years have tracked ancestry using molecular markers in genes governing photosynthesis. Rafflesia is a non-photosynthetic parasite, and those genes have apparently been abandoned, meaning that to determine its lineage we had to look at other parts of the plant's genome....

Bats prey on nocturnally migrating songbirds

... insect bodies and passerine muscular tissues were tracked throughout the year, serving as a control. The results elegantly showed that the bats ate only insects in summer, included some songbirds' flesh in their diet during spring, and depended a great deal on passerines during autumn. Moreover, a higher fr...

Natural gut hormone offers hope for new obesity drug

...at if we are successful, the treatment may be fast tracked to meet the urgent demand to tackle the obesity crisis," she explains. "There is currently a lack of effective treatments and our proposed drug is based on a natural way of controlling the body's appetite, which makes it more attractive." ...

Scientists discover a new risk factor for Alzheimer's

...nican Republic, and a group of Israeli Arabs. They tracked the SORL1 genes via single nucleotide polymorphism...in the regions around the clusters of SNPs that we tracked and see if we can find additional genetic changes that are either unique or enriched in the individu...

UCLA/Toronto researchers unlock key to memory storage in brain

...he mouse's memories about the cage, the scientists tracked a genetic marker that reveals recent neuron activity. When the team examined the animals' amygdalas after the experiment, they found substantial amounts of CREB and the marker in neurons. "We discovered that the amount of CREB influences whether ...

Primitive yeast yields secrets of human cholesterol and drug metabolism

... cholesterol precursors. The research team then tracked Dap1’s counterpart in humans by looking for similar proteins in a computer database and repeated their experiments in human kidney cells engineered to lack the human version of Dap1. As in yeast, the altered human cells accumulated cholesterol precur...

Turtles are loyal in feeding as well as in breeding

...evisited foraging sites. Dr Broderick and her team tracked twenty green and loggerhead turtles nesting at two... Cyprus, using satellite transmitters. All females tracked for more than six months remained in the same foraging grounds, moving to deeper water for the winte...

Salamanders suffer delayed effects of common herbicide

...hat enable them to breathe in air. Scientists then tracked their survival to near reproductive age. Results from the study, which lasted about 500 days, indicated that the two highest concentrations increased salamander mortality during exposure. However, this mortality benefited the survivors who exper...

By 2048 all current fish, seafood species projected to collapse

...es, and monitored the effects. Second, researchers tracked the 1,000-year-long history of change in species diversity and associated services across 12 coastal regions around the world. These included Chesapeake, Delaware, Massachusetts, Galveston, San Francisco Bay and Pamlico Sound (all U.S.), The Bay of F...

Mutant gene causes severe kidney disease in infants

...c syndrome had been cured of the disease. So they tracked down their physicians ?one in Israel and one in Turkey ?to confirm that the information was correct. "These children were very fortunate," Hildebrandt says. "Their physicians told us they decided there was nothing to lose by trying a course of tr...

Gold nanoparticles prove to be hot stuff

...es" for biological molecules being manipulated and tracked by lasers, but they also can heat up fast--by tens of degrees in just a few nanoseconds--which could either damage the molecules or help study them, according to scientists at JILA, a joint institute of the National Institute of Standards and Technol...

Bones at the nanoscale

...out experiments on ID2 beamline at the ESRF. They tracked the molecular and supramolecular rearrangements in bone while they applied stress using the techniques of X-ray scattering and diffraction in real time. The high brilliance of the X-ray source enabled the tracking of bone deformation in real time....

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Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3New study draws links between wildlife loss and social conflicts 2
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