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Tag: "fit" at biology news

Confidence in memory performance helps older adults remember

...o employ mnemonic strategies that help keep memory fit despite the march of time. These are the conclusions of a new Brandeis study published in the Journals of Gerontology: Psychological Sciences. The study demonstrates a link between actual cognitive functioning and a low sense of control, and examine...

Alaska seal pup diet may hold key to decline of population

...tinued to grow in a similar manner. These results fit with a recent study by a team from Göteborg University that found wild seal pups smaller than 26 kg when they were weaned were less likely to survive the winter. It seems that mother seals, which produce high fat milk, must impart enough fat to get p...

In a technical tour de force, Salk scientists take a global view of the epigenome

...orators may allow researchers to do just that. "We fit the whole Arabidopsis genome - about 120 million bases - on a single high density microarray," says Ecker. "To look at the entire human genome you would just need six more chips." Each microarray or DNA chip is dotted with 6 million short DNA fragm...

Scientist-astronaut sends T-cells into space

...designed incubator called Kubik, which was made to fit precisely under the cosmonaut's seat in the Soyuz spacecraft. Kubik contains a compartment for weightless experiments as well as a centrifuge that can accelerate cells in a range from 0.2 to 2 earth gravities. On board the space station, European S...

Ultrasound may help regrow teeth

...nsducer means the miniscule device will be able to fit comfortably inside a patient's mouth while packed ...e able to help produce a tiny ultrasound device to fit in a patient's mouth. The two collaborated and eventually along with Tsui received a grant from NSER...

NASA technology helping injured US troops

...es the lower torso. "We felt SAM would be an ideal fit for Walter Reed because it makes the rehabilitation process less taxing on both the patient and the medical staff," said Enduro's president Ken Messier. According to Messier, SAM allows patients to stand or walk bearing various amounts of their own w...

Seeing the serpent

...ure of the brain's visual system does not actually fit with the idea that vision evolved along with reaching and grasping, Isbell said. But the visual system does seem to be well connected to the "fear module," brain structures involved in vigilance, fear and learning. Fossils and DNA evidence show tha...

Scientists discover a genetic code for organizing DNA within the nucleus

...chromosome, which is itself folded and packaged to fit into the nucleus. What determines how, when and where a nucleosome will be positioned along the DNA sequence? Dr. Eran Segal and research student Yair Field of the Computer Science and Applied Mathematics Department at the Weizmann Institute of Scien...

Connect the Quantum Dots

...; nearly 3 million quantum dots would be needed to fit within the width of a thumb. By virtue of their distinct colors, quantum dots have quickly found their way into homes in many electronic lasers including the new PlayStation 3 and high-definition DVD players. Nanotechnology, the understanding and c...

Life and death in the hippocampus: what young neurons need to survive

...ting with both the mature cells and their peers to fit in. You are selecting for the cell that performs best in this environment." The Gage lab previously showed that the rate at which new neurons emerge from stem cells depends on an animal's activity. "If you put animals in an enriched environment and...

New light microscope sharpens scientists' focus

...at they had heard about photoactivatable molecules fit perfectly with their previous work. In that earlier work, Hess said, "we developed something called spectroscopic near-field microscopy, where we spread out a spectrum of light across wavelengths into lots of little glowing things. And that technique...

Natural pine bark extract relieves muscle cramp and pain in athletes and diabetics

...lem for people of all ages, ranging to the extreme fit and healthy to people who suffer from health problems. Previously, magnesium was hailed as the natural approach for relieving muscle cramps, however studies continue to show magnesium to be inefficient for reducing muscle cramps. "Pycnogenol improve...

Mapping the protein world

...e the only, software that could generate models to fit experimental data automatically and very accurately. It has cut down the time necessary to create structural models from weeks to minutes. This grant will allow the scientists to explore new concepts of model-building and enlarge the scope of data ...

Researchers find protein that silences genes

...cificities they observed for HDA6 in the test tube fit with the changes in acetylation that occur on ribosomal RNA genes in living cells. They also found that the mechanism behind the silencing involves both modifications of histones and changes in DNA methylation, and that HDA6 affects both. Circula...

No-mow grass may be coming to your yard soon

...well, helping them adjust their height and size to fit the growing conditions of any environmental niche. Through traditional methods of plant breeding, humans have been manipulating plant stature for thousands of years. In recent years, through the methods of genetic engineering, more precise methods ...

Nice guys do finish first in lizards' evolutionary race

...le with the orange-throat, enabling his buddy stay fit and mate. McAdam explains that the altruistic blue-throat does this, even though as a result he will sire few, if any, offspring. The yellow-throated lizards are sneakers ?they casually sneak into female havens and mate without calling a lot of att...

3-D ultrasound scanner could guide robotic surgeries

...rays, the researchers engineered probes that could fit inside catheters threaded through blood vessels to view the vasculature and heart from the inside. Earlier this year, the team reported another advance: a 3-D ultrasound device including 500 tiny cables and sensors packed into a tube 12 millimeters...

UCSD study reveals how plants respond to elevated carbon dioxide

...cterize the parts, and you can figure out how they fit together to generate the structure of the machine, and from there you can figure out what it will do when you push button A or pull lever B."...

Trotting with emus to walk with dinosaurs

...hat a human-sized, meat-eating dinosaur (theropod) fit the bill for the tracks at Red Gulch, Breithaupt and his colleagues and students did something unusual. Instead of speculating about what the dinosaurs were doing, they went hunting for a modern analog animal they could study to help decipher the tra...

Parental genes do what's best for baby

... the offspring are more likely to show an adaptive fit with their mother’s genes; they complement each other and so work better together to produce the placenta.? ...

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