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Tag: "you" at biology news

Cricket's finicky mating behavior boosts biodiversity

...cts how life on the planet looks. The more species you have, the more complex the ecology is going to be." In down-to-earth terms: "What turns a female cricket on? Why does she prefer one pulse rate over another? Whatever the reason, it's very important that she exercise this preference in order to kee...

Programmable cells: Engineer turns bacteria into living computers

Ed : Sadly no picture is available; however, you can find one in an article from last year , describing the group's research. In a step toward making living cells function as if they were tiny computers, engineers at Princeton have programmed bacteria to communicate with each other and produce co...

Wisconsin researchers identify sleep gene

... to flow through them. "Our hypothesis is that if you don't have potassium channels, you won't get slow waves," Cirelli says. "The cell membrane will remain activated, preventing long perio...

Probing the promise and perils of nanoparticles

...d. "If you're inventing these sorts of materials, you need to be concerned about their impact," said Mark Banaszak Holl, a U-M professor of chemistry and of macromolecular science and engineering. "We're trying to do both: make important new materials and be excited about what can be done with them, but...

A frog's life is food for thought

...for up to four years it is really interesting when you relate that back to human starvation," she said. "There is no way a human could last for four years without food." Green-striped burrowing frogs spend upwards of 10 months of the year in underground burrows in a hibernation-like state known as aest...

Flocking together: Study shows how animal groups find their way

...cations such as the ocean or other planets. "When you see apparently complex behaviors, the mechanisms t...lutionary biology. "You don't need avowed leaders, you don't need complex signaling." In the simulations, a small number of "informed" individuals was jus...

Polymers with copper show promise for implanted sensors

...to another. "The device might work with me, but if you don't have enough of the reactive species in your blood, then it may not generate adequate nitric oxide levels and it may not prevent clotting," said Meyerhoff. To get at these questions, the researchers have developed a way of measuring the amount o...

Alaskan puzzles, monitoring provide insight about North Pacific salmon runs

...r than maximizing the number of fish harvested, if you maximized the economic value of the catch, including fixed and variable costs, you might consider harvesting very differently," Hilborn says. "For example, you would not take very lar...

Stem cells from brain transformed to produce insulin at Stanford

...study shows that his intuition was correct. "When you look at islets cells you realize that they resemble neurons," Kim said. Like neurons, islet cells respond to external signals...

Increased risk of osteoporosis associated with gene that one in five people have

...enetic marker for evaluating that risk. "Ideally, you want to start early to avoid osteoporosis," Villareal says. "Our next study will look at a much younger group of women. My guess is that we will find that females with this variant gene are breaking down estrogen rapidly from the day they are born. I...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

... not the optimal way go,?he said. “It doesn’t give you the full story ?it doesn’t tell you, for example, ...imal dose. “Based on the results in the lab, then you can do a clinical study of what you think is going to work best,?Derendorf said, “and you’d find the...

Gene Therapy Cures Inherited Liver Disease In Rats

...pproach would be applicable to many diseases where you are trying to put something back, targeting the liver," he said. He is hesitant to predict when the treatment can be tried in humans. While the viral vector is fairly benign long term, he would like to see one developed that minimizes the body's imm...

Researchers identify protein crucial for survival of Lyme-disease bacterium

...a target for eradicating the bacterium, because if you understand what it needs to sustain itself, then in theory you could disrupt that cycle by blocking whatever that mechanism is," Dr. Norgard said. Traditionally, ...

Multi-purpose protein regulates new protein synthesis and immune cell development

...adation to get rid of excess unfolded proteins. So you reduce the load, get rid of garbage and increase efficiency. If these don't work, the cell will die." "Recently, scientists have discovered that the unfolded protein response is activated in many diseases from viral infections to stroke to Alzheimer...

Heart repair gets new muscle

...esh wound or muscle tear might hurt, but, assuming you are otherwise healthy, both will heal. The prognosis for a heart attack, on the other hand, is not so clear-cut. It has long been thought that cardiac cells (cardiomyocytes) lack the capacity for self-renewal and repair, impeding the chances of a fu...

Computational Method Speeds Mapping of Cell Signaling Networks

...es, "Unlike classical biochemical approaches where you need to know all of the intermediate players in a network, this system can detect indirect influences" between molecules. Pe'er suggests a similar technique could be used to study the differences between normal and abnormal cells. This application w...

GeneNotes - A novel information management software for biologists

...ta - or even a simple biological network - can get you lost - quick. Tons of genes, tons of synonyms for ...ll, its a step in the right direction. I encourage you to try it and share your experience in the forum (if you don't want to register) or in the comm...

Nanoparticles offer new hope for detection and treatment

...aring nanoparticles also contain an imaging agent, you can get a visible signal that allows you to measure how much medication got to the tumor," Lanza says. "You would know the same day you treat...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

You just can't tell where you might find love these days. A team led by a neuros...nt out, "If someone rejects your sexual overtures, you don't harm yourself or the other person. But rejected men and women in societies around the world so...

Medical molecules designed to respond to visible light that can penetrate tissue

If you have ever covered a flashlight with your hand and seen the red light that still comes through, then you have seen light in the therapeutic window ?that magic wavelength that is not absorbed or reflected a...

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