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Tag: "slowly" at biology news

Bigger horns equal better genes

...d in an Italian national park, and the species has slowly repopulated and today is no longer considered endangered. ...

Mice with a migraine show signs of brain damage

...chemicals gradually sweeps across the brain like a slowly spreading wave. The brain, in turn, is under tremendous stress, developing a voracious appetite for oxygen as it works frantically to restore the proper chemical balance. Oxygen-rich blood pours into the area to allow brain tissue to work overtime...

An ancient bathtub ring of mammoth fossils

... cubic miles—of water in an instant. The dam would slowly reform creating a new Lake Missoula, and the cycle...would back up, creating temporary Lake Lewis, then slowly drain through to the Columbia River Gorge—all in a matter of days. Preliminary results place most...

Herpes infection may be symbiotic, help beat back some bacteria

...ent herpes infection, the bacteria replicated more slowly and were less likely to kill the mice. When herpes was still in the acute phase of infection, no protective effect was present. When scientists exposed the mice to a mutant herpes virus that can infect but cannot establish latency, the herpes infe...

Biodegradable microspheres deliver time release vaccines, stimulate different immune response

...y system that released the vaccine into the system slowly over time. They chose a biodegradable polymer, ca...asting Gobstopper or a bar of soap. It wears away slowly over time, delivering its payload," says Wilson-Welder. The researchers vaccinated mice with micr...

Cambodian vulture nests offer hope for species

...and other vulture species. Diclofenac is now being slowly phased out in South Asia, but not at a pace that assures the recovery of the vultures. Because Diclofenac is almost entirely absent from use in Cambodia, the country remains one of the main hopes for the survival of the species. However, these birds...

MIT model helps researchers 'see' brain development

... crumpled piece of paper, develop earlier and more slowly than fine-grained folds. In addition to providing insights into cortical development, the team is now comparing the images to those being collected from patients with autism. “We now have some idea of what normal development looks like. The next...

Woven scaffolds could improve cartilage repair

...hout the scaffold, and over time the scaffold will slowly dissolve, leaving the new cartilage tissue" he said. "The use of this scaffold will also permit doctors to treat larger areas of cartilage damage, since the current approaches are only suitable for repairing smaller areas of cartilage damage or injur...

How trees manage water in arid environments

Water scarcity is slowly becoming a fact of life in increasingly large areas. The summer of 2006 was the second warmest in the continental United States since records began in 1895, according to the National Climatic Data Center. Moderate to extreme drought conditions wer...

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

.... "For safety, we're commonly advised to do things slowly when exercising, but it's important to also do some fast exercises. You need a fast movement to prevent a fall. Even in the frail elderly, it is possible to use exercise bands for manual resistance to improve the speed of movement." Knight has alw...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

... begins to degrade and, in the case of fossils, is slowly replaced by mineral. This substitution process was thought to be complete by one million years. "For centuries it was believed that the process of fossilization destroyed any original material, consequently no one looked carefully at really old bo...

Smell may outlast other senses

...ed that olfactory function deteriorates relatively slowly with age in those who do not smoke, take medications or have a history of nasal problems such as sinusitis. However the ability to smell drops off much quicker in older people who were taking medications ?also an indicator of underlying health pr...

Cancer-killing invention also harvests stem cells

...hese selectins cause the white blood cells to roll slowly along the vascular wall, seeking signals that tell them to crawl out of the bloodstream. This is how white blood cells migrate to bacterial infections and tissue injuries. King set out to find a way to duplicate this natural process. First, he ...

A case of mistaken identity for the ivory-billed woodpecker?

...eated Woodpecker's wings were thought to beat more slowly that the 8.6 beats per second captured on Luneau's video, and its wings have black trailing edges. The trailing edges of the Ivory-billed Woodpecker's wings are white. Aberdeen-based Collinson concludes that Luneau's video shows a bird that is not...

Cancer researchers add spice to research against rare neuromuscular disease

...ment for the inherited disorder, which resembles a slowly progressive form of Lou Gehrig's disease and affects only men. The compound, a distant chemical relative of a component of the spice curry, dramatically slowed the progression of the disease in mice that carried the mutant human gene that causes the...

Long-lived deep-sea fishes imperiled by technology, overfishing

...re another depleted species. Deep-sea fishes grow slowly because of limited food sources and slower metabolisms and many don't reach sexual maturity for 30 to 40 years, Heppell said. The harvest of older fish may have an even greater impact on these threatened populations because older fish are more likely...

Conceptualizing a cyborg

...on populations on each plate. The plates are then slowly pulled apart over a series of days, aided by a precise computer-controlled motor system, until they reached a desired length. For the interface, one of the plates is an electrical microchip. Because Smith and his team have shown that stretch-gro...

Prehistoric mystery organism verified as giant fungus

...ed to contain nothing to prevent them from growing slowly for a long time. Plant-eating animals had not yet ...hants that came much later, they probably grew too slowly to rebuild from regular disturbances of any kind, Boyce said. "It’s hard to imagine these things ...

Research to spotlight carbon monoxide benefits

... were showing potential to release carbon monoxide slowly in a controlled manner. They degrade to give benign non-toxic products which do not target immune response." Dr Lynam added: "We don't want to administer carbon monoxide in its normal toxic gaseous form; rather we want to develop molecules that wi...

How T lymphocytes attack

...e or four days previously, the defenders patrolled slowly (4 micrometres per minute) and halted frequently. Their mean rate reached a plateau at 4 micrometres per minute. Then, during later stages when the tumour was regressing, most T lymphocytes resumed their rapid mobility. To summarise therefore, t...

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