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Tag: "decide" at biology news

Scientists collaborate to assess health of global environment

...icular area, for example, it can help policymakers decide whether the benefits of increasing food production will outweigh the effects on water quality and biodiversity by giving them the information they need to make tough decisions. A substantial body of work addressing specific aspects of the assessment...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...likely to respond to interferon would help doctors decide how close to monitor the patient or even whether to consider alternative treatments. In a new study, Sergio Baranzini et al. describe a computational model that can predict a patient's therapeutic response to interferon based on their gene expression...

Researchers devise way to mass-produce embryonic stem cells

...ryonic stem cells, and the researchers have yet to decide which line of stem cells to use.The mouse embryonic stem cells used in this study were provided by ATCC, an organization that supplies lines of embryonic stem cell lines. ...

Researchers find promising cancer-fighting power of synthetic cell-signaling molecule

... group of cell-signaling molecules that help cells decide whether to grow or die via a controlled process called apoptosis. Cancer cells are usually defective in these regulatory pathways, so researchers hypothesized that structurally modified sphingolipid analogs might be even better at making cancer cells...

Breakthrough isolating embryo-quality stem cells from blood

... elasticity ?instead of its biological make-up, to decide whether or not it's a stem cell. Stem cells don't need a rigid "cytoskeleton" to hold them in shape, which makes them stretchier than normal cells. Käs and Guck's machine uses a powerful beam of infrared laser light to stretch and measure cells one ...

Pair of cancer genes found to drive both cell migration and division

...ulate a molecule called PIP3, which helps the cell decide where to push outward - PI3K makes PIP3 on the membrane on one side of a cell while PTEN breaks it down on the other side. But when both enzymes are missing, levels of PIP3 remain constant throughout the membrane, and the cell can't migrate properly....

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

...ith the unenviable and difficult task of having to decide who will get therapy and live, and who will have to do without and possibly die," he says. "But this dilemma is unavoidable because supply will fall far short of demand, despite the generous nature and growing scope of aid efforts." While President ...

New tool reveals secrets of migrating cells

...ration probably is a search for a signal that will decide the cell's fate. In their experiments on one lobe of the mouse thymus, in fact, Witt and her colleagues saw cells, possibly those that have made a decision on their fate, halt their wanderings and make a beeline out of the cortex to the medulla, some...

Decisions, decisions: Male or female?

How germ cells decide whether to be sperm or eggs Johns Hopkins biologi...nderstood how germ cells in the developing embryos decide whether to eventually become the sperm or eggs needed later for adult reproduction," said Mark Van D...

Gap-climbing fruit flies reveal components of goal-driven behaviors

...not fly over the gap, and they were thus forced to decide whether to attempt to cross the gap "by foot." The researchers found that the flies first visually measure the gap width and then only cross the gap if it is a traversable width. If the chasm is short, flies engage in an extraordinary crossing behavi...

Genetically engineered animals help in scientific research that may benefit children

...red animals and this animal model has helped us to decide which molecules to study, or which might be interesting targets for drug development in human chronic kidney disease." Obstructive nephropathy or obstructive uropathy, the kidney disease on which this animal model is based, is frequently found in ch...

Virtual animal shelters ?How the Internet is transforming the experience of pet adoptions

...gs over the Internet, they can pre-screen them and decide which specific dogs they want to visit in person. The Internet thus has had a profound effect on the process of dog adoption." Garcia finds that the descriptive online ads can educate potential owners about endearing traits, such as one ad that desc...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...d of help. Computer forecast models can also help decide where the sensors should make observations. If a model forecasts high concentrations of CO, the sensor web's instruments can be commanded to make targeted observations of those locations. The actual sensor measurements can then be fed back into the c...

Computer modeling reveals hidden conversations within cells

...n critically evaluate the scientific literature to decide what parameters need to be included in the model, and someone like Shannon who can take the predictions of the model and design experiments to test them in the laboratory." ...

Preventing a pandemic: Study suggests strategies for containing a flu outbreak

...cials and concluded that public health workers may decide that TAP, rather than GTAP, is the more realistic strategy, given their resources. This research effort is part of a network called MIDAS (Models for Infectious Disease Agents Study), supported by the National Institute of General Medical Sciences. ...

An essential regulator of body weight revealed

...ents. The brain, in turn, uses this information to decide whether to eat or expend energy. Two types of neurons that recognize and respond to these signals are found in the arcuate nucleus. The first of these, known as POMC (pro-opiomelanocortin) neurons, send signals to other parts of the brain to reduce ...

Careless reporting on HIV 'could cost lives'

...ves, he explains, "giving up a bit of the power to decide when a trial proceeds and when it does not." In agreement with Mills and colleagues, he says "this means there is a much greater responsibility on the scientists to engage with the community in advance". In Cameroon, the allegations of breaches of ...

Sudden change in social status triggers genetic response in male fish, study finds

...2 to 10 minutes," Burmeister says. "It's like they decide to go for it: They know their place in the hierarchy, and they make a decision to change." After 20 minutes, the ascending males were sacrificed and their brain cells prepared for laboratory analysis. The researchers wanted to see if they could ide...

Researchers: Treated wood poses long-term threat

...e decision-makers with information that helps them decide whether or not CCA-treated wood should go into lined or unlined landfills," he said. Unfortunately, however, that won't end the problem. A mathematical model based on the researchers' experiments estimated that between 20 and 50 tons of arsenic may ...

How Fruitflies Know It's Time for Lunch

... food right away. These hug neurons may help flies decide whether or not to eat a new food source. Larvae e...peting neural networks of taste and hunger signals decide whether the fly will eat? Future studies pairing behavioral and genetic analysis may begin to reveal...

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Breaking Biology News(10 mins):C. difficile vaccine proves safe, 100 percent effective in animal models 2UT Dallas study reveals effect of loud noises on brain 2
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