Tag: "alarm" at biology news
Bioagent detector guide aids first responder purchasing
...ificity, start-up and response times, ease-of-use, alarm
capability, power requirements, skill level, cost, durability and portability. An appendix lists questions that could assist emergency first responders when selecting the biological agent detection equipment. Volume II includes detailed detection equ...
Why do aneurysms form? New studies suggest leading role for white blood cells
...n or injury to an area of tissue, and sounding the alarm
to summon other immune cells to join the fight. They are key to the process of inflammation by which the body fights off insults from bacteria, viruses and injuries. The two new papers show for the first time that neutrophils are important in the ver...
Deep-sea jelly uses glowing red lures to catch fish
... which flash brightly when disturbed (the "burglar alarm
effect"). In contrast, the Erenna siphonophores kept their bioluminescence very localized and under tight control, suggesting that their lights had an entirely different function. Continuing his microscope work, Haddock found more specific clues-the...
Oceans turning to acid from rise in CO2
...issued by the Royal Society in the U.K. sounds the alarm
about the world's oceans. "If CO2 from human activ... of global warming. "This report should sound the alarm
bells around the world," remarked Chris Field, director of the Carnegie Department of Global Ecology...
Prescription pain patch abuse blamed for increase in deaths
... of Florida researchers warn. The trend is raising alarm
as the number of people dying from an overdose of the drug fentanyl, an opioid 100 times more potent than morphine, rises. Addicts are misusing a clear patch that transfers a controlled dose of fentanyl through the skin into the bloodstream over the ...
Chickadees' alarm calls carry information about size, threat of predators
... study, said chickadees produce two very different alarm
signals in response to predators. When they see f...irds use a loud, wide spectrum chick-a-dee-dee-dee alarm
to recruit other chickadees, as well as other bird species, to harass or mob the predator. Spectrogr...
How chronic exposure to tiny levels of carbon monoxide damages hearing in young ears
... the home. Many commercial home monitors sound an alarm
only 20 minutes after CO concentrations reaches 70 parts per million -- nearly three times the 25 parts per million limit set by Cal/OSHA. IMPACT: This is the first time that inhaled CO has been linked to oxidative stress, a known risk factor in...
Alarm pheromone causes aphids to sprout wings
...redators such as ladybird beetles, they release an alarm
pheromone, (E)--farnesene, that has long been know...titute in Jena, Germany, now show that exposure to alarm
pheromone also causes pea aphids to produce winged offspring that leave their host plant when mature...
Dye to pinpoint diseases and pathogens
...to constantly monitor the environment and sound an alarm
if harmful agents were to appear." In a study, outlined in the March issue of Bioorganic & Medicinal Chemistry Letters, Krull and graduate student Xiaofeng Wang used a fluorescent dye attached to probe DNA that binds to specific target DNA sequences...
A healthy internal clock keeps weight off
...fat diet. The Clock mutant mice lost both their alarm
clocks and their internal dinner bells. Mice typic...fat diet. The Clock mutant mice lost both their alarm
clocks and their internal dinner bells. Mice typically sleep during the day and then eat a meal at t...
Yeast finding links processes in heart disease and cancer
...s an easy solution to have the same gene sound the alarm
that the cell needs to adapt to low levels of oxygen. Espenshade says sre1's role in the yeast's production of cholesterol (actually a similar molecule called ergosterol) and sensing of oxygen might offer a new opportunity to kill infectious yeast an...
Harnessing microbes, one by one, to build a better nanoworld
...spores, for example) but they then could sound the alarm
and call for help. "You could even engineer bacteria to have different surface molecules that you could capitalize on," says Beck. For instance, it may be possible, the Wisconsin scientists say, to attach microscopic gold particles to the shell of th...
In the mating game, male wild turkeys benefit even when they don't get the girl
...clude caring for a relative's young or sending out alarm
calls to warn nearby relatives at the peril of drawing the attention of a predator. "Although kin selection is widely invoked as an explanation for cooperation, obtaining the fitness data necessary to demonstrate kin selection can be really tough," s...
Rat brain's executive hub quells alarm center if stress is controllable
... executive hub in the front of the brain quells an alarm
center deep in the brainstem, preventing the adverse behavioral and physiological effects of uncontrollable stress. "It's as if the prefrontal cortex says: 'Cool it, brainstem! We have control over this and there is no need to get so excited'," quip...
Improved molecular switch could serve as sensor, medical tool
...and release drugs, and sensors that could sound an alarm
in the presence of chemical or biological agents. His team is now seeking to create a molecular switch that fluorescently lights up only in the presence of certain cellular activity. "We've proven that we can make effective molecular switches," he sa...
An ear for crime
...idual word has to be taught. "But for alarm
signals," says Berger, "you start with a relatively small number of sounds you have to distinguish with high accuracy - gunshots, for example, or diesel engines for border patrol crossings or oil pipeline thieves, or chainsaws (and diesels) to listen...
UF scientists have bionanotechnology recipe to find elusive bacteria
... in ground beef or provide a crucial early warning alarm
for bacteria used as agents of bioterrorism and for early disease diagnosis. The study will appear this week in the Proceedings of the National Academy of Sciences . "Our focus is the development of a bionanotechnology that combines the strengths ...
32 new grants made for innovative technology R&D
...s, and firing side airbags, with a near-zero false alarm
rate. SemiSouth Laboratories, Inc. (Starksville, Miss.) Silicon Carbide Smart Power ChipDevelop and integrate advanced silicon carbide (SiC) power transistors and power control circuitry within a compact prototype SiC power module for potentia...
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