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Tag: "hard" at biology news

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

... asking to test for the presence of PVL, and it is hard to dissuade them that the PVL results will not affect patient care. Hopefully, the robust and contrary findings in our study provide the experimental evidence to convince the staphylococcal researchers and clinicians that PVL is not a significant vir...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...d not one clone was produced. With such odds, it's hard to believe that Dolly and other cloned animals could have possibly been derived from adult stem cells. Much more likely is that these animals were derived from fully differentiated tissue cells," Dr. Yang argues. While more research is needed to det...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...s, including bay scallops, oysters, soft-shell and hard clams, in the bays and estuaries they frequent during summer and migrate through during fall and spring. In the early 1980s when Peterson sampled bay scallops in North Carolina sounds in late summer before and after the cownose rays passed through...

Researcher examines polymers created with poultry feathers

...ponent of hair, nails, and feathers and makes them hard and strong. Barone has found that altering the amino acid structure of keratin can improve the strength and longevity of the polymer. In addition, the viscosity can be improved with reducing agents such as sodium sulfite and lubricants such as p...

Engineering the heart piece by piece

...p of several types of cells. Human heart cells are hard to come by, and “adult?stem cells haven’t yet been shown to be changeable into cardiac cells. Embryonic stem cells, while promising, come with political baggage. And other types of muscle cells taken from elsewhere in the body ?including skeletal mus...

Scientists identify specific enzymes that make meningitis hard to fight

... than ever before into why these infections are so hard for the body to fight. "We have also discovered that this novel combination of enzymes is present in a wide variety of bacteria and that it has a direct impact on the infectivity of human pathogens." Dr Geoff Baldwin from Imperial's Division o...

Ultrathin films deliver DNA as possible gene therapy tool

...ut "getting [the DNA] back out of the films is the hard part." The secret to films that release DNA is in the choice of the polymer and the layer-cake design. The researchers alternate layers of DNA with layers of a polymer that is stable when dry but that degrades when exposed to water. Because the p...

Chimpanzees found to use tools to hunt mammalian prey

...ng invertebrate insects from logs or pounding open hard nuts, but there had been only fleeting evidence of chimpanzees brandishing tools for bona fide hunting. In the new work, researchers observed tool use in hunting by the Fongoli community of savanna-dwelling chimpanzees (Pan troglodytes verus) in ...

Prehistoric mystery organism verified as giant fungus

...lar disturbances of any kind, Boyce said. "It’s hard to imagine these things surviving in the modern world," he said....

Conceptualizing a cyborg

...e nervous system will certainly rebel if you place hard or sharp electrodes into it to record signals. However, the nervous system can be tricked to accept an interface letting it do what it likes - assimilating new nerve cells into its own network". To develop the next generation of prosthetics the i...

Neural bottleneck found that thwarts multi-tasking

...e, what is it about our brain that gives us such a hard time at being able to drive and talk on a cell phone simultaneously?" Researchers have long thought that a central "bottleneck" exists in the brain that prevents us from doing two things at once. Dux and Marois are the first to identify the regio...

Speeding 'fingertip' discovery -- 20 years of protein info in 1 place

...en able to get a handle on because they’re way too hard to work with. Now we have the tools to probe further,?he says. ...

Living with water scarcity -- world must act now

...rn to live with it. This will require making some hard choices now instead of deferring them until later," says Molden. It starts at home. Jan Lundqvist of the Stockholm International Water Institute points out that "reducing losses in the food chain and being careful with our diets can lead to signi...

Small molecule dervived from Rb2/p130 could act as cancer therapeutic

...years after discovering Rb2/p130, our research and hard work has led us to the discovery of this small molecule, which is a step forward in cancer research and a big step toward a cancer treatment," he said. ...

Stopping plants from getting sick

... a great honour, but it's also a reflection of the hard work my trainees and students and post-docs put in as they worked with me during their careers," says Kronstad, a biologist at the University of British Columbia. "There are about 40 other people who I wish could share this fellowship with me." Kr...

Birth rate, competition are major players in hominid extinctions

...lineages of primates have some traits that make it hard for them to respond to rapid perturbations in the ...A specialized feeder, Paranthropus boisei dined on hard objects like seeds, tubers and bones. While it had a variety of food sources, they all required the...

Computer scientists join in search for ivory-billed woodpecker

... stores images of the birds it has recorded in the hard disks of its computer, Logic Supply Inc.'s S-625F.... of the humidity and the rain," Song said. The hard disks are removed routinely from the computer by birdwatcher M. David Luneau, associate professor in...

Applied scientists create wrinkled 'skin' on polymers

... demonstrated a new method for developing wrinkled hard skins on the surface areas of polymers using a focused ion beam. By controlling the direction and intensity of the ion beam, the researchers literally sculpted patterns on flat areas of polydimethylsiloxane, a silicon-based organic polymer (more comm...

Sleep disturbances affect classroom performance

...ncentrating during the day, snoring every night, a hard time waking up in the morning, sleepiness during the day, and falling asleep in class. "While a series of previously-conducted studies all found that adolescents reporting inadequate sleep, irregular sleep patterns, and/or poor sleep quality do no...

A case of mistaken identity for the ivory-billed woodpecker?

...peckers fly away from the camera, their plumage is hard to distinguish from the Ivory-billed Woodpecker's. He suggests that the Pileated Woodpecker's distinctive black trailing wing edges can be spotted in the Luneau video as the wings stroke downwards. Previous analysis suggested these were the black win...

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