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Tag: "transmit" at biology news

Cellular message movement captured on video

...e insight into the possibility of how paxillin can transmit information from one region of the cell, such as t...ey sometimes don’t move properly or why they don’t transmit information properly.”...

Herpes virus hijacks DNA repair process

...other molecules to activate different processes or transmit signals. Genetic comparisons with several human herpes viruses revealed kinases similar to orf36 in the human viruses. Scientists then took a similar kinase from human Epstein-Barr virus and showed that introducing it into cells also activated the DN...

Male circumcision overstated as prevention tool against AIDS

...tion to the virus weekly. The virus is not easy to transmit heterosexually, b ut over time with multiple expos... reaching epidemic proportions; it is very hard to transmit this illness heterosexually. Only when model building researchers introduce a highly sexually active...

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

...and why, for example, some types of mosquitoes can transmit a particular human pathogen while others cannot. If those that cannot have evolved an effective immune system that fights off the pathogen, we may be able to use this knowledge to enhance specific reactions of the immune systems in other mosquitoes t...

Role of noise in neurons

...d ion channels. Axons use action potential (AP) to transmit information fast and reliably to synapses, but the reliability of transmissions down fibers of less than 0.5 ìm in diameter was unknown until this paper. Using detailed models of rodent and squid axons and stochastic simulations, the authors perfo...

Newborn neurons like to hang with the 'in' crowd

...tamate, a chemical released by neurons in order to transmit information to neighboring cells. Whenever the receptor picks up a glutamate signal it is stimulated and relays the signal. For young neurons that signal means survival. As a matter of fact, only about half of all newly born neurons manage to succ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...water system consists of sets of sonar dishes that transmit and detect sound waves. Signal-processing algorithms provide automated detection, tracking, and classification of moving objects such as swimmers. The SDSN is already available commercially for wide-scale deployment (2pEA1). Two papers presented by ...

Genome of yellow fever/dengue fever mosquito sequenced

...ar level between mosquitoes and the pathogens they transmit to humans. ...

NIAID expands capability for influenza research and surveillance

...e; understanding how flu viruses evolve, adapt and transmit infection; and identifying immunological factors that can determine whether a flu virus causes only mild illness or death. Additionally, some centers will monitor for international and domestic cases of animal and human influenza to rapidly detect an...

Leeches ferry infection among newts

...ght on top of a newt's infected muscle in order to transmit the infection. However, it is still unclear if the spores are multiplying within the leech, or simply ferrying on its proboscis. Even though the infection is not fatal to the newts, it could affect their numbers, says Raffel . "When newts get infe...

Changes in amino acids in the 1918 influenza virus cut transmission

...y for binding to alpha2-6 silaic acids was able to transmit by aerosols to contact ferrets. "It appears that w...redictions on the ability of an influenza virus to transmit among humans and unravels the existence of molecular determinants of transmission that could be used...

Tracking sperm whales and jumbo squid

...ale surfaced for a breath of air, the device would transmit recorded data about the animal’s movements to an o... predetermined time, then float to the surface and transmit stored data to the satellite. Results During the study, electronic tags were placed on five ...

Farmed salmon could become an invasive species in forest streams

...lmie NF in Washington. Atlantic salmon could transmit a serious disease or parasite to native fishes. Escaped salmon may eventually adapt to local conditions, leading to self-sustaining populations. Escaped salmon could compete with already at-risk species, such as steelhead. "Given the...

Penn study on olfactory nerve cells shows why we smell better when we sniff

... olfactory neurons respond to odor molecules, they transmit chemical energy into electrical signals, which then trigger a secondary molecular messenger cascade that generates electrical impulses to the brain, signaling that it is smelling something. The group discovered that chemical and mechanical stimuli bo...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

... increased susceptibility to HIV infection and may transmit HIV to their sexual partners. Pregnant women with trichomoniasis may deliver a low birthweight (less than five pounds) or premature infant. Although the prescription drugs metronidazole and tinidazole usually cure trichomoniasis, drug resistance has ...

Conceptualizing a cyborg

...d his team have shown that stretch-grown axons can transmit active electrical signals, they propose that the nervous-tissue interface - through the microchip - could detect and record real-time signals conducted down the nerve and stimulate the sensory signals back through the axons. In another study, Smi...

Experimental vaccine given during pregnancy reduces stillbirths from common virus

...e birth to fewer dead pups and were less likely to transmit the infection to their offspring than were female guinea pigs not receiving the vaccine. The vaccinated group (10 litters) produced 28 live pups and 4 dead pups—a mortality rate of 13 percent. The control group (8 litters), which received a vac...

Anti-herpes treatment reduces HIV levels in women infected with both viruses

...ogical susceptibility of individuals to acquire or transmit HIV are also required. A number of options to prevent HIV transmission are currently being investigated, including the role of vaginal microbicides, pre-exposure HIV prophylaxis, male circumcision, and - in the future - an HIV vaccine.' 'The resul...

Scientists produce neurons from human skin

...nerve cell differentiation and prove that they can transmit nerve impulses," concludes the researcher. ...

Scripps Research study reveals new activation mechanism for pain sensing channel

...researchers found that TRPA1, a protein that helps transmit pain signals, is a direct sensor of reactive chemicals. "While many noxious and pungent compounds were known to activate this pain receptor, we discovered that they do so by directly and irreversibly binding to the cysteine amino acids of this prote...

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