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Tag: "person" at biology news

Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses

...lay amid 278 hours of baseball footage or a single person in Times Square on New Years' Eve. In the report, the researchers tested the nanosensors on five different chemical odorants, including methanol and dinitrotoluene, or DNT, a common chemical that is also frequently a component of military-grade explo...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...orm and then implement a plan to find and rescue a person in need of help. Computer forecast models can also help decide where the sensors should make observations. If a model forecasts high concentrations of CO, the sensor web's instruments can be commanded to make targeted observations of those locations...

New tooth enamel dating technique could help identify disaster victims

...said. "You can't use (enamel dating) to identify a person ?that requires a DNA analysis ?but you can narrow down the number of people you need to look at from a list of missing people." Livermore officials are providing information on the enamel dating technique to federal agencies as part of the Laborator...

Scavenger cells could be key to treating HIV-related dementia

...rchers studied different regions of the brain of a person who died with HIV-associated dementia using specim..."If we really want to understand what happens to a person infected with this disease, we need to develop new tools," he said. "We can put together all these d...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

...." One common misperception is that the body of a person who died as the result of the hurricane and is still in the city poses a risk of infection. "Decaying bodies pose very little risk for major disease outbreaks," says Berkelman. Furthermore, mosquitoes do not spread disease by feeding on dead bodies....

New results validating Pall prion reduction filter disclosed at ISBT Congress

...he U.S. This past month France identified its 13th person with vCJD and Portugal announced its first suspected human case. The UK Haemophilia Society also issued a warning to 6,000 people with hemophilia that they could have caught the disease through infected blood. In the U.S., a second cow just tested po...

Old drug shows new promise for Huntington's Disease

.... There is no known cure or effective treatment. A person who carries the mutant Huntington's gene may pass it on unknowingly because the disease often manifests in early to late middle age after the carrier's children have already been born. During the course of the disease, the Huntington's gene causes ...

No single gene for ageing

...ctors do exist. "Approximately 25 percent of how a person ages is inherited from parents," says Kirkwood. "Stress, environment, nutrition, lifestyle and immunity play an additional role. Great variation between individuals can be seen in organisms such as round worms ?and in humans." Studies of ageing also...

A 'dimmer switch' for genes

...rations on a beaded necklace. In this analogy, one person creates a necklace using similar beads and then a committee comes along and decorates it, putting a gold star here and a diamond there. These modifications give the protein different properties." The "decorations" that were studied were phosphate mo...

Defective Gene Linked to Two Inherited Immune Deficiencies

...ommon but more severe. Both conditions result in a person being more susceptible to pneumonia and to recurri...Because TACI mutations are genetically dominant, a person with TACI mutations in one of the two TACI genes he or she inherits is unable to mount a strong anti...

Agreement will speed research on microbicides for women

...ommon but more severe. Both conditions result in a person being more susceptible to pneumonia and to recurri...Because TACI mutations are genetically dominant, a person with TACI mutations in one of the two TACI genes he or she inherits is unable to mount a strong anti...

Biologists Crack Genetic Code for Specialized Spider Silk

...ommon but more severe. Both conditions result in a person being more susceptible to pneumonia and to recurri...Because TACI mutations are genetically dominant, a person with TACI mutations in one of the two TACI genes he or she inherits is unable to mount a strong anti...

Grasshopper love songs give insight into sensory tuning

...ho have been riveted by the sight of an attractive person knows, nature has evolved sensory systems to be exquisitely tuned to relevant input. A major question in neurobiology is how neurons tune the strength of their interconnections to optimally respond to such inputs. Neuronal circuitry consists of a we...

Asian immigrants in NYC not receiving HIV education at religious institutions

...ring soap or a drinking glass with an HIV-positive person or through casual contact. Other leaders feared they would be shunned in their communities if they offered HIV education or helped HIV-positive people, researchers found. Furthermore, some leaders felt it unnecessary to become involved in HIV educat...

Complex gene interactions account for autism risk

...ies. Of those families, 266 included more than one person with autism and 204 included one autistic individual. The team tested for associations between particular gene variants and the disease. They also applied sophisticated statistical methods designed to zero in on the effects of particular gene combina...

Scientists closer to new cancer detection method

...a cancer biomarker in the body. In that event, the person could seek a more thorough examination." ...

Hope for Alzheimer's blossoms

...ent of all cases of dementia. Dementia affects one person in 20 over the age of 65 and one person in five over the age of 80. Certain species of daffodil, which thrive in the Black Mountains of Sou...

Human cerebellum and cortex age in very different ways

...y levels in the cerebellum remain more stable as a person ages suggests that this region of the brain experiences less oxidative stress and damage as part of normal aging." "Much remains to be learned about how the brain ages and how changes in gene expression over time are related to brain activity," says...

Anthrax stops body from fighting back, study shows

... at the University of Michigan Medical School. "A person can die before they know they are terribly sick at all," Hanna said. Symptoms of inhalation anthrax resemble the common cold and progress to breathing problems, shock and often death, according to the CDC. But in the 2001 attacks, only half the 10 ...

New factor implicated in allergy and asthma attacks

For a person with allergies or asthma, breathing in pollen can ... factor. "The antioxidant has to be there when the person is exposed, and if the antioxidant level is not sufficient, it won't eliminate this oxidative insult...

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