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Tag: "faster" at biology news

Envisat captures first image of Sargassum from space

...ng one computer can do, a pool of computers can do faster and better, enabling the solution of massively complex tasks beyond the capabilities of a single machine or local network. By using Grid technology, Gower and King intend to compute 5-years worth of MERIS data to determine global estimates of Sar...

Fat fish put obesity on the hook

...process, thus bringing new medicines to the market faster and cheaper.” In the study, researchers caused obesity in zebrafish by introducing the same type of genetic mutation that causes severe obesity in humans. The genetic change blocks the activity of a receptor, the melanocortin-4 receptor, which is ...

Prey not hard-wired to fear predators

...de tigers, wolves and bears-- responded five times faster to the recordings than did elk in Rocky Mountain National Park (Colorado) where major predators have been absent for some 90 years....

Revealed -- Mosquito genes that could be controlling the spread of killer viruses

...mmune system, and discovered that they evolve much faster than the rest of the genes in the genome. Identifying which of these key genes are implicated in the transmission of viral diseases is an area of future research that could lead to new ways of combating these diseases. One possibility would be to aff...

Smoking rate has plummeted in New York City

...Declines Since 2002 The smoking rate fell faster among women (23% decline) than among men (15% decline). Rates among young adults (ages 18-24) have declined twice as much as rates among other adult age groups Among all ethnic groups, Asian New Yorkers have made the most progress, with a ...

Modified mushrooms may yield human drugs

...ess of producing biopharmaceuticals is potentially faster and cheaper with mushrooms than conventional technologies. Unlike plants that have long growth cycles, "with mushrooms, we can use commercial technology to convert the vegetative tissue from mushroom strains stored in the freezer into vegetative se...

'Smart' mice teach scientists about learning process, brain disorders

...ze being rearranged, the engineered mice were much faster to realize that things were different and work out the new route. Dr. Bibb cautioned that while the mice learn faster, studies on the long-term effects of deleting the enzyme, called Cdk5, from the brain are continuing. The group is also begin...

Arctic ice retreating more quickly than computer models project

Arctic sea ice is melting at a significantly faster rate than projected by even the most advanced comp...or, and by NASA. "While the ice is disappearing faster than the computer models indicate, both observations and the models point in the same direction: the...

Climate change impacts stream life

... over the last 25 years, with temperatures warming faster than could be explained by background variations. An ecological response to warming has also been clear." The study predicts that at the present rate the springtime abundance of macroinvertebrates in streams could decline by as much as 21 per c...

New technique will produce a better chromosome map

...ages: Because it relies on light microscopy, it is faster and more economical than electron microscopy, with comparable or superior results. With a more accurate chromosome map, researchers will next use fluorescent immunostaining of proteins that bind to specific DNA sequences. These landmarks will help...

Slowing the racing heart

...man heart, one cell -- the pacemaker cell -- beats faster or slower to induce a rhythmic heartbeat that varies to increase or decrease the blood flow to the body as we eat, sleep or exercise. "Disturbances of pacemaker control are common in heart diseases. When the heartbeat becomes non-rhythmic and cha...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

...infections and these sick flies died significantly faster than control flies, which lived two to four times as long as the sick ones. "We want to know how the internal clock knows the animal is infected, and how does the immune system know that you are not sleeping properly"" said Schneider. "How do thos...

Decoding protein structures helps illuminate cause of diabetes

... hIAPP in less than a second - more than 500 times faster than previously possible. The speed is crucial for trying to understand a dynamic process like hIAPP mis-folding, Zanni says. The group now plans to capture series of snapshots during individual folding reactions to identify multiple phases a...

Growing nerve cells in 3-D dramatically affects gene expression

...dy ?were longer. "The cells in 3-D culture grew faster and looked more like the body's cells," she said. "This means that this culture method might create tissue that could be more successfully implanted." ...

Bats get the munchies too!

...hanol levels measured in fruit bat breath declined faster after feeding on fructose-containing food, than when the food contained either sucrose or glucose (two other types of sugar). Furthermore when the amount of ethanol in food increased the fruit bats preferred food which contained fructose over glucose...

Fast and slow -- How the spinal cord controls the speed of movement

...ting a system of nerves and muscles that allow for faster movement. They suspect that damage to these brain cells may disrupt the release of dopamine, further complicating free movement. Fetcho and his group are building a transgenic line of fish with those brain cells labeled so they may be targeted and re...

Deconstructing brain wiring, one neuron at a time

...ifferent rates, crossing bigger, stronger synapses faster than smaller, weaker ones. Together these attributes make these viruses unable to determine exactly which cells are connected to which. The team of Salk researchers sought to create a modified virus whose spread could be limited to a single synaptic...

Whiteflies and plant viruses can help each other to speed up biological invasion

...nsmits and is able to increase its population much faster on virus-infected plants than on healthy plants, whereas its indigenous counterpart is unable to do so, according to the new research carried out at Zhejiang University and Chinese Academy of Agricultural Sciences, China. Twenty years ago in 1986 in...

Tundra disappearing at rapid rate

... that lived there. This shift can happen at a much faster speed than scientists originally thought, according to a new University of Alberta study that adds to the growing body of evidence on the effects of climate change. The boundary, or treeline, between forest and tundra ecosystems is a prominent land...

Sandia researchers take new approach to studying how cells respond to pathogens

...n perform hundreds of measurements 50 to 100 times faster than alternate methods. Singh says the end goal is to make a benchtop miniaturized system expected in about two years. It would be placed in Biosafety Level 3 or 4 labs to study immune response to highly pathogenic organisms. He notes the integrat...

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