Tag: "pass" at biology news
Chemists create 'Superbowl' molecule; May lead to better health
...aller, which makes it more difficult for things to pass
in and out. This is ideal if you're trying to capture certain molecules and hold them until they're ready for release, the researcher says. Superbowl molecules are similar in function to buckyballs, the experimental soccer-ball shaped molecules also...
Researchers reveal the infectious impact of salmon farms on wild salmon
... fjord. Here the wild salmon have no choice but to pass
by the farm on their seaward migration. The scien...vered a new cause for alarm: once the young salmon pass
the farm and pick up the sea lice, the migrating school becomes a moving cloud of contagions. Sea li...
Purdue proves concept of using nano-materials for drug discovery
...in scale, so they do not allow proteins to readily pass
through the membrane but will allow smaller molecu...uid that contains molecules small enough to easily pass
through the pores. The enzyme, which is a protein, was placed inside the vessels - on the inner surf...
The Bacteria's guide to survival
...tosis, or programmed cell death. For bacteria that pass
directly from host to host, this can pose a proble... their pili. For bacteria like N. gonorrhoeae that pass
directly from host to host, the researchers argue, it would be in a bacterium's interest to help kee...
Antibiotic might fight HIV-induced neurological problems
...arrier, the biological "wall" that limits what can pass
from the blood into the brain. Other researchers have reported that this antibiotic can protect brain cells in animal models of other diseases -- multiple sclerosis, amyotrophic lateral sclerosis, Alzheimer's disease, stroke and more. The drug is bei...
Vampire bats keep out of trouble by running
...walk, the common vampire is the only one so far to pass
Riskin and Hermanson's treadmill test and break into a running gait. With the introduction of large herds of livestock into their native environments of Central and South America, these bats don't need to hurry to catch the cattle from which they ex...
Scientists journey to southern Africa to unravel the secret world of elephant communication
... on the spectral content of their footstep as they pass
by a geophone array," says Jason Wood, who is leading the seismic censusing study. "The idea is to have geophone arrays that could be left in the ground for a month at a time, recording data without anybody having to be there. We're hoping they could...
Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance
... in flowering pea plants, males and females should pass
the t haplotype to half their offspring. In a str...ist to what Mendel might have predicted, the males pass
the t haplotype to nearly 100 percent of their offspring (a phenomenon known as "transmission ratio ...
Edible bivalves as a source of human pathogens: signals between vibrios and the bivalve host.
...ves an insight into the complexity of signals that pass
between vibrios and bivalve host cells and helps to explain how these processes develop in natural conditions and determine the fate of vibrios in the bivalve host. ...
Molecular thermometers on skin cells detect heat and camphor
...hem to open and allow electrically charged ions to pass
through and cause an electrical potential that signals the brain. Patapoutian and his colleagues discovered TRPV3 a few years ago by conducting a computer search through an early-assembled draft of the human genome. Its sequence similarity to other ...
Remote control flies? Fly behavior controlled by laser light
...e-forming protein that allows charged particles to pass
through a cell membrane. The small molecule ATP activates the ion channel chosen by the researchers, so ATP became the key. To keep the ATP from binding to the ion channel and jump-starting the nerve cell's activity before the proper moment, Lima and...
Mutation in clams protects against paralytic shellfish poisoning but raises human health risk
...the nerve cell membrane that allows sodium ions to pass
through the membrane. Regulation of sodium is critical to nerve cell function. Without the mutation, the PSP toxins can bind to the sodium channel, shutting down the nerve and leading to paralysis. The toxin acts like a cork in a bottle, preventing ...
Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants
...rld. Researchers in the first study found mothers pass
antiretroviral medications on to their breastfeeding infants in concentrations high enough to prevent infection. The second study showed levels of HIV RNA in breast milk are lower in mothers taking antiretroviral therapy than those who are not. Both ...
Immune system's distress signal tells bacteria when to strike back
...s toxins. Pyocyanin enhances the germ's ability to pass
through the weakened bowel wall, enter the bloodstream and invade tissue. "Our goal," Alverdy said, "is to understand the many steps in this process and use that knowledge to find novel ways to intervene, to stop the infection before it starts rathe...
MIT engineers an anti-cancer smart bomb
...lly taken into the tumor. They are small enough to pass
through tumor vessels, but too large for the pores of normal vessels. Once the nanocell is inside the tumor, its outer membrane disintegrates, rapidly deploying the anti-angiogenic drug. The blood vessels feeding the tumor then collapse, trapping th...
Blink, and the brain misses it
...of goggles. Because the light was bright enough to pass
through tissues of the face, the fibre could be used to illuminate the retina through the roof of the mouth. Therefore, the amount of light falling on the retina remained constant, even when the volunteers blinked. The researchers then performed a ty...
New tool reveals secrets of migrating cells
...called T cell receptors) work properly. Once they pass
that test, they start wandering around in the cort...e meanderers. Only about one percent of thymocytes pass
both tests, but Witt and Robey think that those that do are the ones they see beelining out of the c...
Study shows how retinoic acid enters a cell's nucleus
... what it did. Much like a doorway that requires a pass
code to enter, CRABP-II can only move into a cell's nucleus if its amino acids are organized in a certain sequence, called a nuclear localization signal (NLS). However, CRABP-II does not have a recognizable NLS. Researchers have long wondered how pro...
More animals join the learning circle
Killer whales and chimpanzees both pass
on "traditions" to other members of their group, according to two separate studies of feeding behaviour. The findings add to evidence that cultural learning is widespread among animals. One study involved killerwhales at Marineland in Niagara Falls...
Snapin: A protein with therapy potential for autism
...-- where nerve cells receive information that they pass
on to another nerve cell or to the brain. When there is an abnormal decrease in dendrite branches, there are fewer sites to receive information and communication may be impeded. Individuals with disorders such as autism and Rett syndrome display not ...
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