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Tag: "minutes" at biology news

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...e one governing timing intervals in the seconds to minutes range. Such interval timing occupies the middle neurological ground between two other clocks -- the circadian clock that operates over the 24-hour light-dark cycle, and the millisecond clock that is crucial for such functions as motor control and spe...

Bronx Zoo bears are new Samsonite gorillas

...d bite their way into the container. After some 30 minutes of effort, the bears lost interest, leaving the scratched but still unopened container for keepers to recover. In the Adirondack State Park, conservationists are working to minimize conflicts between black bears and campers. For the past four years,...

Scientists unpick genetics of first 15 minutes of life

... process, making it fundamental for those first 15 minutes in the regeneration of a new life." When sperm cells are created, the molecule that the sperm DNA is wrapped around (called chromatin) is remodelled by swapping the type of 'packing material', known as histone proteins, it contains. When it arrives...

Smoking damages key regulatory enzyme in the lung

... lower for smokers, particularly for the first few minutes after being injected, Fowler added. This finding could imply that smokers and nonsmokers respond differently to other substances that enter the body via the bloodstream, including therapeutic drugs, anesthetics, abused substances and environmental ag...

New factor implicated in allergy and asthma attacks

...reathing in pollen can be a very bad thing. Within minutes of inhalation by someone sensitive to their effect...molds linked to allergy and asthma attacks. Within minutes of exposure, ragweed pollen or its extract containing NADPH oxidase produce damaging reactive oxygen...

Sudden change in social status triggers genetic response in male fish, study finds

... that subordinate males can become dominant within minutes of an opportunity to do so, displaying dramatic ch...and rapidly began his ascent toward domination. In minutes his coloring changed, his eyebar appeared and he began making threatening displays and chasing other...

NRL scientists detect 'milky sea' phenomena

.... Enhancement of OLS imagery collected roughly 30 minutes after the ship's report of initial sighting revealed a massive region of low-level light emission. The glowing waters spanned an area roughly the size of Connecticut (over 15000 km^2) and lasted at least three nights. The event took place in the nor...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

... whether cells are cancerous or not in a matter of minutes versus hour or days with current methods. Nanosh... whether cells are cancerous or not in a matter of minutes versus hours or days with current methods of histology sectioning," says Dr. Panchapakesan. "It migh...

Stroke treatment a step closer after trial

...ed of oxygen. A core area of the brain dies within minutes but it is the threatened area around this core that the treatment may help to salvage. "The protein targets the molecule that causes inflammation and dramatically reduces the inflammatory markers," said Professor Rothwell, MRC Research Professor and...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...of synchronized neural activity that lasts several minutes after a bee initially senses it," said Galán. "Thi...r, but you can still detect its signature features minutes afterwards," said Galán. A future question that could be addressed using this research is addressi...

New brain scan technology could save babies' lives

...is the size of a fridge-freezer and takes around 8 minutes to generate an image. The aim is to produce a version that is half this size, 5 times faster, even more accurate and geared for clinical use. The potential use of the technology in breast imaging to aid cancer prevention and treatment is also being t...

Penn researchers study the use of ultrasound for treatment of cancer

...ntinuous wave of low-level ultrasound. After three minutes of treatment at an intensity similar to what is used in physiotherapy ultrasound (about 2.5 watts), researchers observed that the tumors had little or no blood supply. "We used an ultrasound intensity higher than that used for imaging, but much lowe...

Technique offers new view of dynamic biological landscape

..."Most of the mRNAs in yeast have half-lives of ten minutes or so, but our alterations destabilized them to have only a half-life of a couple of minutes. Consequently, they produce five- to ten-fold less protein," he said. In developing E-MAP, the researchers faced a significant hurdle: Even yeast's relativ...

Stress substantially slows human body's ability to heal

...er said, each spouse was asked to talk for several minutes about some characteristic or behavior which he or she would like to change. This was a supportive, positive discussion. "But during the second visit, we asked them to talk about an area of disagreement," she said, "something that inherently had an ...

Tracking the memory trace

...called the dorsal pair medial neurons, but only 30 minutes after the fact and only through the mediation of a...volving the DPM neurons, the change can be seen 30 minutes after the formation of the memory, but it lasts about two hours. "The other intriguing thing we do...

You will remember this

... that the subject would remember the word up to 50 minutes later - and after doing a series of other word tests. On the other hand, if the voltage was lower, the subjects were less likely to remember the word. Dr Otten said: "It would be nice to know what brain regions are involved in this preparatory activ...

Nanotechnology may find disease before it starts

...ltrasound images of the animals' livers every five minutes for 90 minutes after the injection. The nanoparticles had accumulated in the animals' livers. Another future step f...

Anthrax spores may survive water treatment

...tration of 1 to 2 milligrams per liter). After 60 minutes in the water, there was no significant decrease in the number of viable spores. "Under those same conditions, one minute exposure could kill 99.99 percent of other waterborne pathogens that do not exist as spores," says Calomiris. Higher concent...

New nano-canary in the nanotoxicology coalmine: The body itself

...roteomic approaches. FTIR spectra are captured in minutes in live cell studies, offering a tool to rapidly detect whether nanoparticles are biologically active. This information can be used to prioritize nanoparticles for further study to ascertain the nature of the biological activity in terms of toxicity...

Movement of chromosome in nucleus visualized

...velope. The chromosome traveled further in several minutes than ever observed, even over several hours, in the absence of activation. "It looked nothing like the random, but localized, bouncing around that had been previously observed," he said. Belmont's group collaborated with Primal de Lanerolle, profes...

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