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Tag: "fear" at biology news

Air travel and pandemic flu

...em to pass from one human to another. However, the fear is that the virus might change and that human-to-human infection could then be possible. Should all this happen, the changed virus would be a major threat to human health. With current technology, it would take several months to produce enough vac...

Cougar predation key to ecosystem health

... both predation on these herbivores as well as the fear of predation to further affect their behavior, the researchers concluded. Ripple and Beschta considered other factors that may have played a role in loss of cottonwood trees in Zion Canyon, such as climate fluctuations or human interventions t...

Emotional control circuit of brain's fear response discovered

..."Following the discovery of the amygdala's role in fear response, we decided to explore the finer points of the neurocircuitry of fear ?how it is regulated/controlled in the brain." To accomplish the tricky task of studying fear in t...

Scientists find mutations that let bird flu adapt to humans

...avian influenza virus known as H5N1, a strain some fear could be the organism that will trigger a pandemic of virulent human influenza. The avian virus has already changed dramatically from when it was first identified in 1997, says Kawaoka, who also holds an appointment at the University of Tokyo. "Th...

Global malaria map key weapon in fight against malaria, scientists say

...n intelligent approach to global malaria control I fear there will be much wasted funding and many missed opportunities." ...

New drug blocks influenza, including bird flu virus

...rugs to prevent and treat influenza at a time when fear of a global pandemic is heightened and available antiviral drugs are losing their potency. "This gives us another tool," says Stacey Schultz-Cherry, a UW-Madison professor of medical microbiology and immunology and the senior author of the new repo...

A silent pandemic: Industrial chemicals are impairing the brain development of children worldwide

...ss to the data may be restricted because companies fear exposing proprietary information. Also, current toxicity testing rarely includes neurobehavioral functions. "The brains of our children are our most precious economic resource, and we haven't recognized how vulnerable they are," says Grandjean. "...

Anticipation plays a powerful role in human memory, brain study finds

...tuation probably kick-starts a kind of "arousal or fear circuitry" in the brain, which in turn helps to reinforce old memories. "In the future, we could look for ways to dampen that arousal response in patients so that they do not evoke negative memories so easily," she adds....

UCLA: How does your brain respond when you think about gambling or taking risks?

...oss increases, the parts of the brain that process fear or anxiety, such as the amygdala or the insula, are not activated. "What we found instead," Poldrack said, "is you don't turn anything up. You turn down the reward areas of the brain, and you turn them down more strongly for losses than you turn t...

Non-GMO solution to seafood allergies

...fferers may soon be able to eat prawns without the fear of an adverse reaction. Chinese scientists have taken a promising step towards removing from prawns the proteins that cause an allergic response without resorting to genetic manipulation, reports Lisa Richards in Chemistry & Industry, the magazin...

Viral protein is an effective preventative against infection

...ction, but physicians are reluctant to do this for fear of increasing resistance to antibiotics. So we’re really in a catch-22 situation." Fischetti’s lab has done extensive research on lysins, which are proteins derived from viruses that normally infect bacteria. After a virus has infected the bacteri...

Billions of dollars saved in US by polio vaccination

...large, intangible benefits associated with avoided fear and suffering. This first study to retrospectively demonstrate the enormous benefits of polio vaccination appears as part of a special issue on polio in the December 2006 issue of Risk Analysis. The history of polio vaccination in the U.S. spans ove...

Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle

...ex, seat of thinking and planning; the amygdala, a fear center; the hippocampus, a learning and memory hub; and the striatum, which relays signals from these areas to the cortex. Reward circuit neurons harbor receptors for estrogen and progesterone. However, how these hormones influence reward circuit ac...

Transfusion expert urges wider use of filtered blood

...ood and Drug Administration. Part of the reason is fear of increased cost. However, Neil Blumberg, M.D., lead author of the study and a proponent of leukoreduction, argues that several cost-benefit analyses show that an upfront increase of $25 to $35 for each unit of filtered blood is offset by savings...

Man's best friend lends insight into human evolution

... may have emerged once the brain systems mediating fear were altered ?and the same thing may have occurred...n solving cooperative problems by their impulse to fear more dominant individuals and behave aggressively toward more subordinate ones. "Taken together,...

Traumas like Sept. 11 make brains more reactive to fear

...e findings suggest that events that trigger shock, fear and horror that are within a normal range -- may c...oms were the ones who had higher activity in their fear centers," said Temple. "We think that the World Trade Center experience was traumatic enough that it...

Male circumcision overstated as prevention tool against AIDS

...d prostitutes during an AIDS epidemic because of a fear of creating a stigma against the infected would be like an animal rights activist claiming that a rabid dog must be allowed to run free in a neighborhood regardless of how many men women and children he infected and killed. It is not surprising th...

Prey not hard-wired to fear predators

Are Asian elk hard-wired to fear the Siberian tigers who stalk them" When wolves ...ey species, including moose, caribou and elk, only fear predators they regularly encounter. If you take away wolves, you take away fear. That is a critica...

Researchers examine carbon capture and storage to combat global warming

...ergy options, such as renewable power. Worse, they fear it will prolong fossil fuel use, if fossil fuels from some stationary sources can be used more cleanly. But the researchers continually emphasize the need to adopt other technologies in addition to carbon sequestration. ''Geological sequestrati...

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