Tag: "picking" at biology news

Film found on windows after 9/11 reveals higher level of pollutants

..."By the time we got there six weeks later, we were picking up the signal of the slow burn, not the catastrophic expulsion of debris," she says. Diamond is hesitant to speculate about potential health effects for a number of reasons, including the limited number of samples: the findings were based on window ...

Human brain works heavy statistics learning language

...e consonants varied, resulted in the test subjects picking out the words with great accuracy. Turkish, as an example, uses this "vowel harmony" quite regularly. "These results suggest that human learning ability is not just limited to a few elementary computations, but encompasses a variety of mechanisms," s...

Teachers turn to Tolkein to explain physics

...ilogram. So whether the cylinder gets "heavier" by picking up dust or "lighter" as a result of being cleaned, it always has a mass of 1 kg. Ian Robinson describes two new experiments that aim to sweep away this unsatisfactory state of affairs - by redefining the kilogram so that its value cannot change with ...

JCI table of contents, 15 March 2004

...nents of the findings and how these results aid in picking apart this complex interplay between HIV infection and our immune response. TITLE: Blockade of T cell costimulation reveals interrelated actions of CD4+ and CD8+ T cells in control of SIV replication AUTHOR CONTACT: Mark Feinberg Emory University Va...

The catch 22 of immune response to AIDs viral infection

...nents of the findings and how these results aid in picking apart this complex interplay between HIV infection and our immune response....

Bacteria lingering in body may pose future food poisoning risks, Stanford study finds

... day after day and look at the whole body at once, picking up more subtle nuances of infection." Another surprise was how the bacteria were dividing in the gall bladder. Normally Listeria tries to evade the immune system by replicating inside the host's own cells. But in the gall bladder, which serves as a w...

SPR Annual Meeting features newsworthy discoveries

...out the possibility that they may have simply been picking up interference signals created by the heart-beats of mother and child. Researchers have recently developed a way of ensuring that they are in fact recording fetal brain activity and not cardiac "noise" by combining the fetus' anatomical information...

Genetic clues may show which women face breast cancer risk from HRT

...e of the study authors. "If we could have a way of picking out the subset of women who are at risk for breast cancer from using standard hormone replacement therapy, we could offer these women some other treatment for their postmenopausal complaints." The researchers presented their findings at a meeting cal...

Small subset of cells has big role in controlling immunity, study finds

...a researcher says. Dendritic cells roam the body, picking up invaders, such as a virus or cancer, then show their finds to the T-cells and tell them how to respond, says Dr. Andrew L. Mellor, molecular geneticist and immunologist and director of the MCG Immunotherapy Center. Work published in the Aug. 15 is...

Scripps team part of collaboration that reveals first ecological genomic 'blueprints'

...per shows that Synechococcus displays a history of picking up foreign DNA and converting it into useful genes for its own purposes. Countering the reputation of the open ocean as an isolated, dilute environment, Palenik says this new evidence shows a high volume of organisms interacting with each other and w...

Brain patterns the same whether doing or just watching, Queens researcher discovers

...s showing that some brain cells fire not only when picking up an object, but also when watching an experimenter do the same thing. Rather than mere imitation, Dr. Flanagan believed that such neural activity was a way of understanding the action in anticipation of performing it. The current Queen's study use...

Role reversal: male gets easy ride in insect courtship

...he next generation. Females are typically choosy, picking only the best males while also getting enough food to ensure their offspring are well fed and inherit the quality attributes from their father. The tiny Zeus bug (Phoreticovelia disparata) is a water skater common along Australia's east coast. Its b...

Lead poisoning still threatens albatross chicks on Midway Atoll

...lstein and her colleagues studied were poisoned by picking at paint directly from buildings or by eating paint chips that had fallen in and around their nests, the researchers report. To determine the route of exposure, they used lead isotopic analysis, a technique that measures isotopes, or chemical markers...

Circadian influence in plants more widespread than previously thought

HANOVER, NH While picking apart the genetic makeup of the plant Arabidopsis, two Dartmouth researchers made a startling discovery. They found that approximately 36 percent of its genome is potentially regulated by the circadian clock, which is three and a half times more than...

Pathogenic yeasts and fungi: A growing health concern

...y one. But if they start taking over the yard, the picking becomes laborious, and you may need to turn to a chemical weed-killer to hold the invaders in check. After several applications of the herbicide, however, the weeds could become resistant, forcing you to use an even more powerful solution. Meanwhile,...

UI researchers discover new cause of muscular dystrophies

...e have studied," Campbell said. "We were gradually picking up clues that showed we had a different type of muscular dystrophy here." Most muscular dystrophy causing genetic mutations have been linked to disruption of a large protein complex that controls the structural integrity of muscle cells. The research...

Scientists break down patterns in nature

...tern one would get from breaking a rock once, then picking one of the pieces and splitting it, then picking another piece and splitting it, and so on. That sequential splitting generates a characteristic pat...

Dinosaur, crab fossils reveal ecosystem secrets

...ite is a predator. I could see a baby Spinosaurus picking up mangrove crabs, but it's all speculation because we have no solid proof of what dinosaurs ate."...

Multitasking genes manage related traits in plants

...d leave without rubbing up against the anthers and picking up their pollen. "A flower has to evolve to successfully manipulate the behavior of the animal that pollinates it to get what it needs," Conner said. "The key is to make contact with the anthers and stigma. If that doesn't happen, it's worthless, fro...

New screening technique may speed hunt for genes

...cting thousands of flies. Each dissection involved picking apart a 3-millimeter fly under a microscope using two needles attached to toothpicks. The fly's ovary is an artichoke-like structure occupying most of its abdomen. The goal was to count each of the ovary's ovarioles so the researchers could localize ...

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