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Tag: "tip" at biology news

Stanford/Packard scientist's data-mining technique strikes genetic gold

... injury and muscle development. "This is just the tip of the iceberg," said bioinformatics specialist Atul Butte, MD, PhD, who is also a pediatrician at Lucile Packard Children's Hospital at Stanford. "Nearly 100 different diseases have been studied using microarrays, spanning all of medicine. This is a...

Horseshoe crab decline threatens shorebird species

..., makes a 20,000-mile round-trip from the southern tip of Argentina to the Artic Circle ?one of the longest migrations of any bird. And each year from April to June, the red knot stops over in the Delaware Bay to feed on horseshoe crab eggs resulting from the largest spawning of horseshoe crabs found on ...

Mining for gems in the fungal genome

...olites to discover]," says Keller. "It's just the tip of the iceburg." Thirty or so secondary metabolites await analysis in Aspergillus nidulans alone. Additionally, scientists suspect LaeA may play a similar role in all Aspergillus species, meaning there are over 180 fungi that can be mined using t...

Rare Tibetan antelope listed as endangered

...cal signals from the scanner to the sensors at the tip of the tube, which in turn send pulses of acoustic waves into the surrounding tissue, Smith explained. The sensors then pick up the returning echoes and relay them back to the scanner where they produce an image of the moving tissue or organ. The sca...

3D ultrasound device poised to advance minimally invasive surgery

...cal signals from the scanner to the sensors at the tip of the tube, which in turn send pulses of acoustic waves into the surrounding tissue, Smith explained. The sensors then pick up the returning echoes and relay them back to the scanner where they produce an image of the moving tissue or organ. The sca...

Portable cocaine sensor developed at UC Santa Barbara

...f chemistry and biochemistry. "Cocaine is just the tip of the iceberg." Currently detecting cocaine (and other illegal and legal drugs) in bodily fluids must be done by a laboratory with large and expensive equipment. The process takes from hours to days to get a result. The potential medical implicati...

ASU researchers 'wire' DNA to identify mutations

...e surface of the electrodes spontaneously. As the tip is pulled away and the two electrodes teased apart, the molecules of DNA are eventually dispersed to the point of measuring the current of a single DNA molecule. For a proof of concept of the potential for measuring SNPs, the group used DNA of 11 o...

New, unique microscope for nanotech

...The atomic force microscope uses an extremely fine tip to run over the surface of a sample and "see" extr...asure the arrangement of atoms at the surface. The tip of the atomic force microscope can also be used as a probe to nudge cells, or place atoms or molecul...

WWF peeks into mysterious life of Borneo's pygmy elephants

...an elephants. They are found only on the northeast tip of Borneo, mainly in the Malaysian state of Sabah. "We are learning about more than just elephants with this project," said Raymond Alfred, project manager of the elephant tracking project in Sabah. "Elephants are a 'keystone species' and habitat en...

Fossil find: 'Godzilla' crocodile had head of a dinosaur, fins like a fish

...e before stepping into the ocean. At the southern tip of South America , they found fossils of an entirely new species of ancient crocodile ?one whose massive jaws and jagged teeth would have made it the most fearsome predator in the sea. Unlike the crocodiles we know today, Dakosaurus andiniensis live...

Max Planck researchers make a breakthrough in plant stem cell research

...ly are derived from cells of a small tissue at the tip of the shoot. Biologists call this tissue the "api...work together to maintain this fine balance at the tip of the shoot. The working group led by Dr. Jan Lohmann at the Max Planck Institute for Developmenta...

A new window into structural plasticity in the adult visual cortex

...ry neurons showed dynamic changes, with one branch tip undergoing dramatic remodeling. "Within as little as two weeks," the authors note, "this branch tip more than doubled its length and exited the imaging volume." One nonpyramidal neuron even showed a f...

Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors

...ize to bone, according to Keller, but most of them tip the balance toward destruction ?producing what scientists call osteolytic lesions, or holes in the bone. Prostate cancer is unique in its ability to trigger increased bone production, which creates what's called an osteoblastic lesion. "In metastati...

Regenerating worms help elucidate stem cell biology

...tes in a very specific way, he explained, with the tip of the head beginning to regress, followed by a curling up of the sides of the body. Not surprisingly, worms without neoblasts also lose their ability to regenerate. With their unparalleled capacity for regeneration and the many environmental cues ...

Many cats unaffected by catnip, C&EN reports

...its nose and mouth, she says. C&EN offers one tip for cat owners: Store catnip in your freezer to preserve its potency. Nepetalactone is volatile and will degrade over time otherwise. The American Chemical Society is a nonprofit organization, chartered by the U.S. Congress, with a multidisciplinary...

MBL researchers probe how an ancient microbe thrives and evolves without sex

.... Indeed, many of them appear to be located at the tip of the chromosome in an area called the telomere, different from the gene-rich portions of the genome, whereas most species tend to have DNA transposons dispersed throughout their genome. ...

Tropical Deforestation affects rainfall in the U.S. and around the globe

...ia, considerably enhances rainfall in the southern tip of the Arabian Peninsula. However, the combined ef...son and further increases rainfall in the southern tip of the Arabian Peninsula. Improved understanding of tropical forested regions is valuable to scient...

Locusts' built-in 'surface analysis' ability directs them to fly overland

...he water. Only when the swarm reached the northern tip of the gulf did some of them turn again east in the direction of Aqaba and other areas of Jordan, as well as straight north over southern Israel. This observation led to examination by scientists of the Hebrew University of Jerusalem Department of E...

'Underground' tunnels discovered as means for communication between immune system cells

...ing a deliberate poke with an empty microinjection tip it caused the same reaction. But why some cells responded and others did not made Drs. Salter and Watkins wonder if there was some sort of physical structure connecting only those cells that discharged. A literature search turned up a handful of pape...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...d the Scotia Sea (between South America's furthest tip and Antarctica). During the Census-affiliated ANDEEP III expedition, from January to April 2005, a crew of 56 scientists from 10 countries took samples by towing two kinds of net over the ocean floor and by stamping out small cores 50 centimeters de...

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