within 2 6

Tag: "within" at biology news

When your brain talks, your muscles don't always listen

... was repositioned to sample from other motor units within the muscle. Knight and graduate student Dhiraj Poojari and undergraduate researchers Maria Bellumori and Christopher Martens then analyzed the firing-rate data for frequency and amplitude in a tedious process that Knight hopes to automate in the f...

3-D ultrasound identifies women at risk for impending preterm birth

...urements could identify a preterm risk of delivery within five days of the measurement. "Our results sugg...e adrenal gland volume in predicting preterm birth within five days from the time of examination proves that 3-dimensional ultrasound evaluation of the fetal ...

Rapid oral HIV test shows great promise according to MUHC-led research

...he other advantages are that results are available within 40 minutes compared to the standard blood test, which takes up to two weeks. This test can also be performed by health workers with minimal training, eliminating the need for specialist laboratory technicians." "Rapid point of care HIV testing is ...

Chlamydia vaccine a step closer to reality

...we think we've got the answer. It is possible that within three to five years we'll be finished the animal trials and be looking at clinical trials in humans." Professor Timms said Sanofi-Pasteur's funding would allow QUT to evaluate the effectiveness of Chlamydia prevention methods developed at the univ...

Anthrax attack posed greater potential threat than thought

..., received antibiotics or a vaccine, as did others within or outside the building, and no deaths resulted from this act of bioterrorism. According to the new study of the event, however, people in areas assumed to be at minimal risk of exposure showed immune responses suggesting they had been exposed. T...

How fish species suffer as a result of warmer waters

...es. The latter are able to grow and reproduce only within a very limited thermal tolerance window. Investigations at the Alfred Wegener Institute show the key importance of oxygen uptake and distribution ?through respiration and blood circulation ?in setting the animals' thermal tolerance range, in that ...

Cold sore virus might play role in Alzheimer's disease

...ll damage, then retreating and seeking safe harbor within the body's nerves in a "latent" phase. The virus spends most of its time in the latent phase, sequestered in cells, not active and not replicating. But occasionally, when triggered by factors like stress, fatigue, certain foods, or even sunlight, the...

Robotic therapy helps restore hand use after stroke

... "Assessing changes in before-and-after scores within each subject, these were highly significant gains after three weeks of therapy," Cramer said. The UCI team is now using what they learned from study participants to create a "son of HOWARD," with improved hand-robot connections and more software o...

Cancer-killing invention also harvests stem cells

...he selectins form bonds with the white blood cells within fractions of a second, then immediately release the cells back into the bloodstream. He also realized that selectin is the adhesive mechanism by which bone marrow stem cells leave the bloodstream and find their way back into bone marrow. This is ho...

Wired for sound: How the brain senses visual illusions

...h, the ERP measurements showed a boost of activity within the visual cortex of the brain immediately after hearing the second sound," said Mishra, adding that the second sound amplified the brain activity stimulated by the first sound. Perception of the second illusory flash was also marked by a rapid enha...

A rarity among arachnids, whip spiders have a sociable family life

...and scattered about another large unfamiliar cage, within minutes, they gathered back together. In one experiment conducted by Rayor and Rachel Walsh, A&S '05, when 7- to 9-month-old D. diadema were separated from their families and later returned to cages with either their own group or an unfamilia...

Scientists discover new, readily available source of stem cells

...e asked the question, 'Is there a possibility that within this cell population we can capture true stem cells?' The answer is yes." Atala and colleagues discovered a small number of stem cells in amniotic fluid ? estimated at 1 percent ?that can give rise to many of the specialized cell types found in th...

Shedding new light on proteorhodopsin

... when proteorhodopsin was first discovered encoded within the genomes of uncultivated marine bacteria. The discovery implied that such bacteria possessed phototrophic as well as respiratory capabilities. This would be a critical adaptation for seafaring microbes because the world's oceans are permeated wit...

Early-stage sperm cells created from human bone marrow

...hy process of scientific investigation is required within a reasonable ethical and social framework to be able to take this work to its next stage or to say if it has potential applications in terms of fertility treatments in humans. Prof Nayernia gained worldwide acclaim in July 2006 when he announced i...

First-degree fetal heart block may be reversible

...id drug dexamethasone, the condition could advance within as little as one week to a third-degree block, whi...dvanced block and permanent heart damage can occur within one week of a normal echocardiogram, even a weekly evaluation may not be sufficient to detect early ...

Blame the brain for high blood pressure

...al idea that one cause of high blood pressure lies within the brain, and not the heart or blood vessels, has... blood vessel inflammation and increase blood flow within the brain. The future challenge will be to understand the type of inflammation within the vessels in...

Vasectomy may put men at risk for type of dementia

...alent of a gated community in the body. Tiny tubes within the testes (in which sperm are produced) are protected by a physical barrier of Sertoli cells. The tight connections between these cells prevent blood-borne infections and poisonous molecules from entering the semen. After a vasectomy, however, t...

Yale biologists 'trick' viruses into extinction

... of luring a virus population into the wrong cells within the human body, thus preventing virus reproduction and alleviating disease. "Ecological traps for viruses might arise naturally, or could be engineered by adding viral binding sites to cells that disallow virus reproduction," said senior author Tu...

Darwin's famous finches and Venter's marine microbes

... window into biological and genomic diversity and, within this diversity, to better understand many of the fundamentals of biology." he adds. Expanding the universe of protein families But instead of whole genomes, metagenomics produces a whole grab bag of bits and pieces for which scientists have ...

Surgeons develop simpler way to cure atrial fibrillation

...diofrequency energy. By holding areas of the heart within the jaws of the device, surgeons can create lines of ablation, or scar tissue, on the heart muscle. In the older Cox-maze III procedure, the lines of ablation were made by cutting the heart muscle, sewing the incisions back together and letting a sca...

1 2 3 4 5 6 7 8 9 10