Tag: "outside" at biology news

Fat cells fight disease, Purdue University researchers find

...t a molecule, or ligand, binds to molecules on the outside of pig fat cells incubated in a laboratory dish. In this case the ligand is an inflammatory molecule called LPS. This binding with the receptor molecule on the pig fat cell, like a key in a lock, signals fat cells to produce more of another hormone-l...

Understanding urinary tract infections

...hree lead authors of the paper. "They come off the outside of the IBC in successive layers." During the fourth stage, some of the bacteria from the dispersed IBC become filaments, taking on long, thin, needle-like shapes. The new shapes may help them evade the immune system and seek chances to start new infe...

Space technology in new technique to fight breast cancer

...al workshop, under the auspices of ESA, to consult outside leading medical experts. The participants discussed user requirements and operational constraints as well as the new non-invasive diagnostic methods used by the rapidly developing MRI technology. ActiveFU is the first product to emerge from ESI. Bru...

Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find

...this ancestral history to specific diseases. Found outside the cell's nucleus, mitochondria are the power plants of cells that are responsible for burning the calories in our diet. The cellular energy is used for two purposes: to generate heat to maintain our body temperature and to synthesize ATP (adenosin...

Purdue engineers develop quick, inexpensive method to prototype microchips

...y companies. "What we've done is really thinking outside of the box," said Nate Mosier, an assistant professor of agricultural and biological engineering who also contributed to this project. "This is a radical departure from using photolithography to make these devices." The speed and simplicity of Lad...

Tiny heaters may pave way for easier tissue engineering, medical sensors

...e," he said. There are also powerful applications outside the research lab, he added. The technique could be used to fashion biosensors or diagnostic devices. "We could have arrays of proteins or cells with specific functions they may be sensitive to a pathogen, for example," he said. "You could watch t...

Changes in shape of single protein plays key role in the spread of cancer cells

... to help the cell anchor itself to the environment outside its membrane--an area called the "extracellular matrix." This keeps the cell in one spot so it does not drift away. However, when the protein called -actinin (alpha-actinin) binds to vinculin's head, the head acquires a different shape. In this shape...

Mars mission scientist will live a 25-hour day

...am members must keep a longer day while exposed to outside stimuli that run on an exact 24-hour cycle.The entire rover team will work at the mission control center at JPL. They already have rented apartments in a quiet neighborhood equipped with light-tight blackout shades, and some of them will wear special...

Separation day arrives for Mars Express and Beagle 2

...en tested many times on Earth, there is always the outside possibility that something may go wrong during the all-important separation. Even if the separation is successful, Beagle 2 must rely on its own battery, which cannot last beyond 6 days, until its solar arrays are fully deployed on the surface. This ...

New findings can help parents looking to combat number of kids' sick days

...the most famous parental warning of all: "Don't go outside with your hair wet or you'll catch pneumonia." Now...arnings should, perhaps, be modified to: "Don't go outside with your hair wet -- but do go out!."...

Emerging frontiers genomics grant for blue-green bacteria

...Nostoc, Rhizobia don't fix nitrogen when they live outside a plant. The researchers will study how groups of genes are turned on or off as Nostoc grows and responds to changes in its environment, for example when switching to a nitrogen-fixing form. Nostoc belongs to the cyanobacteria, thought to be one of...

Leibniz Prizewinners 2004

... to ensure that coherent, meaningful images of the outside world are produced in the brain. Her research focuses include the detection of molecular mechanisms and the activity-related development of brain structures. To prove the presence of neuronal activity, she introduced a genetic process which makes spe...

With nature's help, a better vision system for smart weapons

...used for X-rays or other electromagnetic radiation outside the visible light spectrum. The UF team is the first to develop photon sieves for visible and longer-wavelength light, including infrared light, Holloway said. The latter can have important implications for weaponized vision systems, which sometimes ...

Researchers engineer mouse embryonic stem cells to form sperm cell precursors

...viding the flexibility of in vitro ("in glass", or outside of an animal) experimentation that may lead to more controlled studies. Geijsen and his colleagues also found that while many primordial germ cells formed in the laboratory environment during their study, only a few developed further into the sperm p...

On the tip

... on the cell's membrane, connecting the inside and outside of the cell. The gate opened when the researchers added calcium ions. In general, proteins like TRPM5 are considered good potential drug targets because their position on the cell surface makes them more accessible than proteins inside the cell. ...

Beetles could prove a hit with the aircraft industry

...urbine aircraft engine which has cut out, when the outside air temperature is as low as minus50 degrees Centigrade! Due to start early next year, this innovative 3-year project at the University of Leeds is being funded by the Engineering and Physical Sciences Research Council (EPSRC). The bombardier beetl...

UC Riverside researchers publish paper on botulism detection system

.... This also means that it will find uses in fields outside (medical) toxin sensors," said Mohideen, adding that the process can be used in food and water quality applications. The key to the process, however, is its timeliness, according to the researchers. Antitoxin vaccinations can work only if applied qui...

First gene therapy approved

...ed over a month ago but has gone largely unnoticed outside China. Most gene therapy experts contacted by New Scientist knew nothing about it. But French Anderson of the University of Southern California, a renowned gene therapy pioneer, visited SiBiono earlier this year and also met the head of the Chinese d...

Scientists discover how brain draws and re-draws picture of world

...ized their experiences to anticipate forces likely outside of the tested space." With information from these experiments, the scientists developed a new computer model of how the brain uses experience to create an impression of the world to apply to similar but new situations. The new computer model matche...

Protein-hungry cells 'go fishing,' report Purdue biologists

...ce, the business an E. coli cell conducts with the outside world through its membrane. With hundreds of protein receptors serving as gate guards, the membrane admits into the cytoplasm the nutrients the cell needs to exist. In most cases, receptors are made to admit only one particular substance. "If you've ...

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