Tag: "suspect" at biology news

New research shows air pollution can reduce children's lung function

...ng small airways on a daily basis. Scientists also suspect that air pollutants might dampen the growth of alveoli, tiny air sacs in the lungs. The research team will continue to follow the study participants into their early 20s, when their lungs will be fully mature. They want to find out whether the partic...

Viral suspect for amphibian decline traced to human spread through bait

...ding rainbow trout), which in turn the researchers suspect resulted when the virus jumped from frogs to fish. The salamander virus however, is distinct from either of these and may be a recent development because of its lack of genetic diversity. "The basic story, based on the molecular analysis, is that the...

Broken arms and collateral damage: clues to predator-driven evolution

...'s not the whole story, though. Baumiller and Gahn suspect that crinoids were not the intended targets of the predators that inflicted damage upon them, and that their broken arms were simply "collateral damage." Crinoids, Baumiller explained, play host to a variety of other organisms that take up residence ...

2nd media alert First Scientific Conference on Childhood Leukaemia

...questions whether the 'safe' levels of exposure to suspect agents are still set far too high. You are invited to attend the entire conference in addition to the news briefing. Registration is free for bona fide media on presentation of official press credentials at the conference press office....

Heartless worms hold clues to cardiac arrhythmias, sudden death

...ts -- those who did not develop the syndrome. "We suspect that this variant is protective, that patients who have it are somehow more protected against drug block of HERG compared to patients who don't have it," Petersen said. By engineering the variant into KCR1 and studying it in cells, the researchers co...

Brain's reward circuitry revealed in procrastinating primates

...hich is rich in dopamine. There was also reason to suspect that the dopamine D2 receptor in this area might be critical for reward learning. To find out, the researchers needed a way to temporarily knock it out of action. Molecular geneticist Ginns, who recently moved from NIMH to the University of Massach...

Discoveries in neuroscience

... on the cause of epilepsy and seizures. Scientists suspect that a Cx36 mutation causes these common neurological conditions, which occur when the messages swapped between synapses get scrambled. Meanwhile, a Cx50 mutation can form cataracts in mice. "Electrical synapses were only discovered in the neocortex ...

A changing landscape may have dire implications for birds

... some species populations are increasing, which we suspect is due to increases in both generalist and exotic species," says Pidgeon. While human population has grown significantly across the continental United States since the 1970s, Lepczyk says the number of houses sprouting up in previously undeveloped ar...

Scientists discover new intricacies in how ulcer bugs stick to stomach

...imple attrition of the generalist form. "We suspect that the bacteria have a tendency over the course of multiple generations to genetically deactivate and reactivate babA proteins that allow them to stick to the stomach lining, and that during these cycles the ability to bind to other forms of Lewis ...

Research reveals role of gene in infertility

...this and other process. "Our research leads us to suspect that plant cells repair breaks in their DNA in a different way from mammal cells, which just stop growing if the RAD51 gene is not functioning," Ma says. Meiosis produces the cells of sexual reproduction, such as sperm cells and egg cells, which co...

Molecular motor shuttles key protein in response to light

...ount of time for our eyes to adapt to light, so we suspect that comparable mechanisms exist in humans." The light-detecting cells in fruit flies are similar to the rod and cone cells found in the human retina. One end of each cell contains the protein that directly responds to light, but other proteins criti...

New model explains why costly insect 'outbreaks' hard to predict

... spatial synchrony while other models do not. They suspect that the long duration between outbreaks ultimately limits the importance of the environmental distinctions between various regions. As for applying their theory to species beyond the insect world, Dwyer and his team are fairly optimistic. ...

'Trap' crop saves Texas cross timbers melon production

...mained a mystery for some time. At first the chief suspect was a little known species of leafhopper. But as more data was accumulated, it became obvious that another insect, the squash bug, was the culprit. The proof involved "Koch's postulates," a series of rules for finding the cause and vectors of diseas...

'Weed from hell' found in Texas

... control programs," she said. Before they spray a suspect infestation, producers should first send a sample ...d at 979-845-6531, or e-mail digital photos of the suspect plant to her at m-ketchersid@tamu.edu . It's important that landowners act promptly if they suspe...

University of Chicago scientists pinpoint cellular cause of SIDS

...ormal breathing pattern for babies, the scientists suspect that a malfunction in these respiratory pacemakers is the cellular mechanism that leads to SIDS. "This paper sets the groundwork for everything that has to do with breathing," says lead author Jan-Marino Ramirez, an associate professor of organismal...

Stem cells commit to a future of fat with one signal

...lls to become fat cells," says Tang.The scientists suspect that a number of other proteins will also be involved in the control of fat-cell commitment. In the future, they and other colleagues will use these cells and BMP4 to look at differences of committed and non-committed stem cells to pinpoint other key...

Scientists learn how adjuvant makes vaccines effective

...niversity of Colorado Health Sciences Center. "We suspect that alum may influence the immune system in other ways as well. Our findings, however, have begun to unravel the mystery of adjuvants and will lead us in the future to better understand how they have helped prevent disease in millions of people. By...

Volcanic soils yield new clues about the emergence of powerful chiefdoms in Hawaii

... of Hawaii and Maui. This fact led researchers to suspect that there was something in the soil of these young volcanic islands that made them conducive to sweet potato cultivation. Kohala's recent geological history offered several tantalizing clues. The volcano was built 150,000 to 400,000 years ago by a s...

Avastin-Tarceva combo provides 'one-two' punch against lung cancer

...rrupt EGFr signaling. As a result, the researchers suspect that a dual blockade of these targets may be synergistic.Interim results from this research were presented at last year's ASCO meeting in Chicago, prompting other investigators across the country to examine this combination in other tumor types as we...

Junk DNA yields new kind of gene

... a recent puzzle. Researchers have lately begun to suspect that the long stretches of apparently useless, or junk, DNA might possess a hidden function. In the past year, evidence has been pouring in, not just from yeast but from mammals, that these apparently silent regions produce RNAs, which are associated...

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