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Tag: "movement" at biology news

One-dimensional diffusion accelerates molecular motors

...e position via a random, one-dimensional diffusion movement along the microtubule, until it locks into place a...he microtubule." The chromosome halves follow this movement and are this way accurately distributed on the daughter cells. ...

Major initiative proposed to address amphibian crisis

...de of wildlife, and pollution may all increase the movement or susceptibility to this fungus. "There are a lot of concerns, and we should work to address all of them, not just one," Blaustein said. "At first we need to focus our efforts on research so we have a better idea of what types of recovery program...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...e researchers discovered a new pathway for protein movement in the trypanosome that may also be found in other cell types including humans. The scientists discovered that proteins can move from a glycosome, an important energy-generating organelle in a trypanosome, to the endoplasmic reticulum where GPIs are ...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...p his own research, which focuses on measuring the movement of gases between the prairie and the atmosphere. ...d with year-to-year weather variations, impact the movement of carbon dioxide between the surface and the atmosphere," Ham said. "Through these networks we're ...

New technology enables faster, more efficient cell harvest: Cell therapy meeting study

...art attack, replace skin for burn victims, restore movement after a spinal cord injury and regenerate pancreatic tissue to produce insulin for people with diabetes. Regenerative medicine promises to improve health and quality of life by supporting and activating the body's natural healing abilities. ...

Embryos exposed in 3-D

...art attack, replace skin for burn victims, restore movement after a spinal cord injury and regenerate pancreatic tissue to produce insulin for people with diabetes. Regenerative medicine promises to improve health and quality of life by supporting and activating the body's natural healing abilities. ...

New angiogenesis finding may help fight cancer growth

...olecules that respond to VEGF. NK-B also slows the movement of endothelial cells, which is necessary to form new vessels, and raises the level of a newly discovered angiogenesis inhibitor. "It's premature to call it a master switch, but intriguingly, it regulates at least four different processes, each of ...

Mobile DNA part of evolution's toolbox

...Haussler's results support the hypothesis that the movement of retroposons can generate evolutionary experimen...l harm an organism. But every once in a while, the movement of a regulatory element will give an organism an evolutionary advantage. "And to the extent that [su...

Test reveals effectiveness of potential Huntington's disease drugs

... the striatum, which is involved in the control of movement and of "executive function," or planning and abstract thinking. It primarily attacks nerve cells called striatal medium spiny neurons, the main component of the striatum. Dr. Bezprozvanny's group previously demonstrated that Huntington's striatal ...

Stormy days ahead for coral reefs

... borrowed from engineering theory to translate the movement of storm waves into mechanical stresses on the coral in different parts of the reef, incorporates the various shapes of coral colonies and calculates whether they will be dislodged during extreme weather. The research introduces a new concept ?c...

UGA scientists unravel 'molecular inch-worm' structure of walking-pneumonia bacterium

...neumoniae lack flagella, they "glide," a method of movement that has been known for some time yet never entirely understood. The cells seem to bend and flex, but it's unclear how that is accomplished. The new data indicate that gliding is essential for cell division in M. pneumoniae. "In addition to its sig...

Ocean temperature predicts spread of marine species

... model gives us a powerful new way to study larval movement with knowledge about ocean temperature, which is much easier to come by. With models such as this, we can see what large-scale changes in ocean temperature may mean for adult populations." The study appeared online the week of Dec. 25 in the Proce...

Study offers window into human behavior, brain disease

...cities we're talking about…It's not like analyzing movement of your right arm or color vision. We're talking about understanding how we read others' minds. The philosopher in me sees the opportunity to really learn something interesting about human nature, here." Still, he says, "It's the neurologist in me ...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

...f the neural basis of sensorimotor integration and movement control. He, postdoctoral researcher Mark Churchla... A major conclusion of the study, in fact, is that movement variability is not primarily a mechanical phenomenon, as had widely been thought. After looking at n...

Like a snail through the intestinal canal

...f mucus and allow the robot to imitate the forward movement of a snail. A snail leaves a trail of slime behind it on the ground. This slimy material works simultaneously as a lubricant for gliding on and as a glue which the slug can grip hold of. An intestinal robot should also have a similar layer to use. T...

Coral reefs are increasingly vulnerable to angry oceans

... borrowed from engineering theory to translate the movement of storm waves into mechanical stresses on the coral in different parts of the reef, incorporating the various shapes of coral colonies, and then calculated whether or not they will be dislodged during extreme weather. The study introduces a new c...

Highly concentrated botulinum preparation for cosmetic injections can result in severe illness

...rves that control a number of functions, including movement of the facial muscles and swallowing), with two patients experiencing shortness of breath. The researchers report the patients may have received doses 2,857 times the estimated human lethal dose by injection. Pretreatment serum toxin levels in 3 o...

Research links 'ecstasy' to survival of key movement-related cells in brain

...elopment of Parkinson's disease and possibly other movement disorders. Preventing dopamine cells from dying or aiding in the replacement of those cells is key to finding lasting therapies. Lipton, director of the developmental neuroscience division in UC's psychiatry department, studies the long-term effect...

Two-faced protein can stop metastasis or promote it, researchers say

...nvolved in breaking them apart and promoting their movement when tumors begin to spread to other parts of the body, researchers at Mayo Clinic have found. The study, published in the Sept. 18 online issue of the Journal of Cell Biology, helps illuminate the very first steps involved in metastasis, the spread...

Researchers barcode DNA of Venice museum's vast fungi collection

...of the world through the global trade of goods and movement of people. In addition, some species of fungi can lead to human illness, including pneumonia, skin infections, allergies and asthma. Garbelotto is perhaps best known for his work in the identification of Phytophthora ramorum, the fungus-like plant...

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