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Tag: "sure" at biology news

FDA sees nanotech challenges in every product category it regulates

...o decades have not kept pace with inflation—making sure that FDA has the capacity to safely manage nanotechnology must be the shared responsibility of Congress and our political leaders,” argued Rejeski. “The agency must be ‘nano-ready’ for the products on the market today and able to deal with the more a...

Cellular message movement captured on video

...neering. “But it’s really very complex and I’m not sure we’re covering much as yet. We certainly don’t know all the interactions among these molecules that bring the cell into action.” Examining living cells through a microscope, Chien and the paper’s co-author, associate project scientist Ying-Li Hu, ...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...ancer patients, vitrifying it then, after they are sure it’s cancer-free, re-implanting it when the woman is ready. A concurrent phase I study is comparing standard cryopreservation to vitrification in eggs. They are using eggs from 60 women age 18-42 that would be discarded because they are not adequa...

Stroke study sheds light on left-right brain divide

...ve to keep track of several tasks at once and make sure we perform each one correctly and at the right time.’...

Study shows lizard moms dress their children for success

...ething about the future environment, but we're not sure yet exactly what that is," Lancaster said. "Orange-throated neighbors may indicate a trend in the frequency of orange-throated lizards within the population or in the overall population density." According to Sinervo, the density of the lizard pop...

Helping chlorine-eating bacteria clean up toxic waste

...es and not so well at others, and nobody knows for sure why. In fact, very little is understood about how these organisms live and breathe. Normal laboratory procedures haven't provided enough answers, because the bacteria are hard to grow in a petri dish, said Ruth Richardson, Cornell assistant professor...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

... the researchers. The researchers can't say for sure say whether a disruption of the brain's central clock, which is the area of the fly brain that exhibits circadian gene activity, was responsible for the changes seen in the sick flies. But the behavior of the ill flies looked a lot like that of flies...

From the deep -- Researchers find new species of sea anemone

...nd its physical description. She and Gusmão aren't sure how old the creatures are, and say that sea anemones can live for hundreds of years. Nor are they sure how A. pearseae reproduce (each anemone may have male and female sex organs), or if it lives exclusi...

Growing nerve cells in 3-D dramatically affects gene expression

...lagen gel. The bioengineers took great pains to be sure that this one-dimension difference was the only di...dividuals cells as they went into the dishes to be sure that each dish contained precisely the same amount. After a day of growth, the researchers extrac...

Hives ferment a yeasty brew, attract beetle pest

...the amounts of IPA produced. "We are not really sure how the yeast gets into the colony," says Tumlinson. "Perhaps one beetle finds and carries the yeast in and it reproduces, or, because the yeast grows on pollen in nature, perhaps bees bring it into the hive." This combination of domestic honeybe...

It's never too late to get it back! Aging interrupted

... low calorie diet. However, it is important to be sure that healthy people will benefit from the drug. A very low level of toxicity could interfere with the beneficial effects of such a drug, if it is taken for a lifetime. Physiological changes associated with ageing include cell damage and the em...

Researchers find link between food odors and lifespan in fruit flies

... altered the way it has aged. So we wanted to make sure the effect of caloric restriction wasn't just slow... altered the way it has aged. So we wanted to make sure the effect of caloric restriction wasn't just slowing the animals down, and we found that it wasn't....

Jefferson scientists find rabies-based vaccine could be effective against HIV

...ell says, noting that he and his colleagues aren’t sure how long the viral immunity will last. According to Dr. Schnell, the study demonstrated a "proof of principle" ?that is, that the method used is technically possible. He says that the results indicate the need for future studies in larger groups o...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...hose of living lizards and crocodilians. We aren't sure about the genomes of the long-necked sauropods yet." Organ and Edwards say the clear-cut dichotomy in dinosaur genomes is likely due to different amounts of repetitive and non-coding DNA in the two groups' genetic material, a factor largely respon...

How appetite-stimulating brain cells work overtime during fasting

...ells responsible for stimulating the appetite make sure that you stay hungry. Now, a new study of mice reported in the January issue of the journal Cell Metabolism, published by Cell Press, reveals the complex series of molecular events that keep those neurons active. The researchers revealed a link bet...

Rapid, Low-Cost DNA Testing

...to rapidly test DNA to improve our health and make sure we're drinking clean water and eating uncontaminated food. In fact, his new method can be used to help forensics labs identify criminals, test ponds and pools before children swim in them, and identify harmful genetic sequences in medical research, t...

Fighting to keep Darwin in the classroom

...nal is very timely and indeed well overdue. It is sure to play a major role in science education in the United States and beyond." Telmo Pievani, Professor of Philosophy of Science at the University of Milan, Italy, said, "Outreach and Education in Evolution is absolutely opportune in its mission. It...

Post oak grasshoppers emerging

...ll harm them, Behmer said. Behmer is still not sure what the Easter weekend cold snap will do to the grasshoppers' population, but he wants to study that too. Junek said they were still crawling up the side of house on April 8, even though their numbers were reduced. ...

Bats prey on nocturnally migrating songbirds

... In the case of giant noctule bats, it was for sure the description by Ibañez et al. (2001) of a so far totally unrecognized, outstanding predator-prey relationship that triggered so much initial scepticism. As usual, a new major and amazing discovery generates a lot of sceptical reactions, which call...

New research shows that flu is a trigger of heart attacks

... then high-risk people will be more likely to make sure that they receive the influenza vaccine every year. We know from our other research that one in three people with heart disease do not consider themselves at high risk for heart-related complications from influenza and therefore do not receive the an...

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