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Tag: "least" at biology news

Invasion of the island bats

...e South Pacific and Caribbean lizards uncovered at least three separate cases of island-to-continent colonization. Then again, these few instances could be interpreted as the exceptions that prove the rule, anomalies easily explained by the unique circumstances of each case. Analysis of bat DNA publish...

Molecule that destroys bone also protects it, new research shows

...e know now that almost all autoimmune diseases, at least in the mouse model, are caused by TH-17 cells. This new information has forced scientists to revise completely how they view their favorite disease. Everyone now has to rethink the causative mechanism." Gaffen said IL-17 likely would be toxic if...

'Short-circuit' found in ocean circulation

...ndamental findings. “The Southern Ocean is the least well understood part of the world ocean, but one of the most important parts. We are going to have to understand its circulation before we can make really confident predictions about how the climate is going to change over the next 100 years. “Th...

HIV survival improves if patients stay in care

...h care provider. Sixty-four percent of them had at least one visit in all four quarters, 18 percent in thre...risk of dying than those who saw the physicians at least once each quarter. Patients with visits in one quarter had nearly twice the risk of dying compared t...

High-dose anticlotting drug cuts heart attack, death risk in half

...o, FL. Researchers found that giving patients at least 600 mg of clopidogrel before stenting, rather than the standard 300-mg dose, halved the risk of major complications associated with blood clotting, or thrombosis. In addition, the higher dose did not increase the risk of serious bleeding. "This re...

DNA-damage test could aid drug development

...ocess." "This is a much cheaper assay that's at least as predictive as previous assays," emphasizes Griffith, "and drug developers can afford to use it a lot earlier in the drug development process." It also could help to avoid issues with animal testing. "The European Union is trying to minimize animal...

100 percent of pregnant women have at least one kind of pesticide in their placenta

... are alarming: 100% of these pregnant women had at least one pesticide in their placenta, but the average rate amounts to eight different kinds of chemical substances. Fifteen different pesticides in the organisms of pregnant women In her study, through the analysis of the placentas, López studied ...

Female-led infanticide in wild chimpanzees

...ooperated in the killing and cannibalization of at least two infant offspring of other females. In the abse...ere taken from the mothers, who were injured in at least two of the attacks; in at least one case, adult males in the area exhibited displaying behavior, wit...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...tp://www.sound101.org/ ) into more pleasing (or at least entertaining) ones. Morphing is often applied to film soundtracks (as audio special effects) and music synthesis. (3pID2). ALIEN SOUNDSCAPES Crackling electricity in the atmosphere" Howling red dust storms" Sounds that become muffled from ju...

Implanting dopamine generators in brain cells obtains improvement in Parkinson's in monkeys

...ceived transplants was demonstrated to last for at least a year. The research team concluded that the mechanism by which the implants in the striate area of the brain of dopamine-generating cells manage to ameliorate Parkinson's appears to be related to the capacity of these cells to release substances...

Better health twice as likely for nonsmokers who live and work with smoking restrictions

...hat among Asian Americans the most at risk are the least acculturated non-English speaking immigrants. Before the New York City Clean Indoor Air Act of 2003, second-hand smoke exposure among this immigrant Chinese population at home and work was high, note the researchers. "Particular attention must be ...

Rare soft-shell turtle, nesting ground found in Cambodia

One of the world’s largest and least studied freshwater turtles has been found in Cambodia’s Mekong River, raising hopes that the threatened species can be saved from extinction. Scientists from Conservation International (CI), World Wildlife Fund (WWF), the Cambodian Fisheries Adminis...

Intelligent materials to regenerate bone tissue

...deteriorated bone tissue in the most efficient and least discomfiting manner, without any serious repercussion. Another exigency involves the carrying out of the mechanical functions of the damaged bone while the desired regeneration takes place. The solutions have to be capable, moreover, of remedying ...

Detecting poisons in nectar is an odour-ous task for honeybees

...honeybee, which accounts for the pollination of at least 1/3 of the world’s crop plants, may encounter such poisoned nectar in common crop and garden plants such as Rhododendrons and almond trees. Can honeybees learn whether nectar contains toxins, and does this influence their ability as pollinators? Dr G...

Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants

...nelles that give plants their green color ?have at least three different signals that can indicate a plant ...ponse. It will take a little more tweaking, but at least knowing that it is going through a certain particular pathway will enable researchers to design what...

NIDA study identifies genes that might help some people abstain from smoking

...that are unknown at present. We also found that at least 62 of the genes that we had previously identified as playing roles in dependence to other drugs also contribute to nicotine dependence.? Genes that harbor variants that contribute to both success in quitting smoking and in vulnerability to become d...

Researchers wake up viruses inside tumors to image and then destroy cancers

...cancers associated with Epstein-Barr, including at least four different types of lymphoma and nasopharyngeal and gastric cancers. In the March 1 issue of Clinical Cancer Research, a team of radiologists and oncologists from Johns Hopkins Medical Institutions describe how they used two agents already on th...

Discovery of new cave millipedes casts light on Arizona cave ecology

...nne and Voyles has resulted in the discovery of at least 10 new species, including a new species of spider, a new genus of cave cricket (Family Rhaphidophoridae), possibly two new cricket species, a new barklouse (Psocoptera) species, a new beetle species, and possibly two new springtail species (Collembol...

Scientists identify pancreatic cancer stem cells

...of mice tested. They also found these cells are at least 100 times more tumorigenic than cancer cells that ...currence and metastasis. This study confirms at least one of those concepts, the researchers said. "Our study demonstrates that the very small subset of c...

Stanford-led study closes in on genes that may predispose some people to severe depression

...breakthrough by studying 650 families in which at least two members suffered from repeated bouts of severe depression that began in childhood or early adult life. The first of the studies was a genome-wide scan that looked for evidence of genetic "linkage" within families between depression and DNA ...

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