Tag: "destination" at biology news

Researchers Propose A Revolutionary New Theory About The Way Cells Communicate

...migrating through theextracellular matrix to their destination - not by being transmitted through aconduit. "If o...the theory has beenthat morphogens arrive at their destination at a particular gradient, orconcentration, and that, in the concentration of the morphogen, lies the...

USGS Study Confirms An Urban Air-Pollution Problem At Mount Rainier National Park

...s the Seattlemetropolitan area. A common visitor destination in the park, known as Paradise, is on the southernslope of Mount Rainier at an elevation of 5,400 feet and a distance of about 60miles from Seattle. Peterson said that Paradise had almost twice the monthlymean ozone concentration as Lake Sammamish, w...

Errant nerve cells risk a clockwork death

...growing neurons must reach a specific intermediate destination by acertain time or risk not receiving life-sustaining chemical signals fromspecialized spinal cord tissue. According to MarcTessier-Lavigne , an HHMI investigator at UCSF, the discovery likely revealsa new fail-safe mechanism that ensures proper w...

How biological molecules move electrons: Simplicity trumps complexity

...ules, proximity alone of the electron's origin and destination points appears to be sufficient to promote the necessary transfers: They must be no more than 14 angstroms apart. Electron transfers of the kind investigated represent the fundamental atomic-level exchanges that underpin the energy economies of all...

Concorde to blame for missing pigeons?

...ld and the position of the Sun. But to reach their destination the birds also need to have a "map sense" -- a mental chart linking their starting position and destination so they know which way to go. "Nobody has been able to understand how they do that," says Jon Hagstr...

Life sciences designated a Missouri lead industry

... by high growth companies and increasingly popular destination for venture capital funding," said Driskill. According to the Progressive Policy Institute, the state ranks eighth in the number of "gazelle jobs" created by high growth companies. In 1999, venture capital investment increased by 117 percent in M...

Protein stimulates key link between nerve cells, suggesting possible target for mental retardation and nerve regeneration therapies

...ts messages than a train has luck in reaching its destination without tracks to follow. During synaptic transmission, nerve cells release thousands of neurotransmitters from their nerve terminals at once. The messengers diffuse across a synaptic cleft to corresponding receptors on a target cell, and prompt ...

Voyage of the space veggies

...current priorities, Mars seems the likeliest first destination for bionic plants. Probably not on the first crewed missions-at three years or so, these would be short enough to take along everything the travellers needed. But for longer trips plants would be useful, maybe even indispensable. Team leader Chris Br...

Pharmaceutical 'smart bomb' targets cancer cells

...f a drug that can be activated once it reaches its destination inside a patient's body. Prodrugs can transport highly potent medicines such as Hu's cytotoxins (cell-killers), without impacting other body tissues along the way. Hu's research employs a new and improved prodrug package developed by collaborators ...

New method for studying ocean currents to help fight erosion

...uck, NC, a popular tourist destination in the Outer Banks region. Duck is also a popular spot for researchers investigating ocean waves, so Lippmann and Shore were able to take advantage of the fact that researchers ...

Scientists discover how nerve cells move from target to target as they wire up the developing embryo

...embrace, a developing nerve cell reaches its final destination in the brain by drawing close to one target, then turning to a series of newer attractions as it continues on a halting course toward a predestined rendezvous with another nerve cell. Scientists at the University of California, San Francisco have dis...

University of Cincinnati researchers set for June launch of cultural, environmental, economic rescue mission in Crete

...coastal towns do, it's becoming a popular day trip destination because of its natural beauty, archaeological sites, spectacular vineyards and grapes, and its "old world" charm. UC's previous work in Crete has been supported by the City of Hersonissos, UC's Institute for Global Studies and Affairs, UC's Faculty ...

Cannibalism in the North Atlantic: Scripps researcher finds crustacean species keeps population in check by eating its young

...orth of the British Isles and east of Iceland at a destination called "Ocean Station M." Battling rough seas and waves that sometimes surpassed 50 feet (image available), Hirches group and other marine researchers performed experiments and collected zooplankton samples for 80 days. The sample data were then tr...

Rutgers professor details how polymers improve drug delivery and make possible crystal-clear water-based cosmetics

... Uhrich explained. To make sure drugs get to their destination within the body, they are often delivered inside fatty globules known as liposomes. But liposomes aren't always good carriers because heat and enzymes can break them up and allow the drug to escape in an uncontrolled fashion. Uhrich reports that ad...

Harbor Branch scientist aids in Mexico manatee rescue effort

...irplane and then another truck ride to their final destination near Cancun, where they finally arrived at about 10pm. Two manatees were taken to Xcaret while the other two were taken to Puerto Aventuras. All four will be medically evaluated in the coming days. The animals are markedly underweight but stable. Th...

Another transmembrane protein structure solved by Rockefeller scientists

...ely sized and charged molecules to travel to their destination in the cell or outside of it. A distinctive hourglass shape, seen for the first time in MacKinnon and colleagues research, defines the chloride channel, and provides a striking contrast to the aqueous, pyramid-shaped cavity of the potassium ion chan...

New research sheds light on earth's largest animals

...o not make such stops. Even the blue whales winter destination and likely calving area - a region off Central America called the Costa Rica Dome - is a fertile upwelling site rich with krill. By contrast, most gray whales head to the warm waters of lagoons along the Pacific coast of Baja California for calvin...

'Summer of the Shark in 2001 more hype than fact, new numbers show

...verage also was heavy because Florida is a popular destination for tourists from Western Europe and Japan. After saving his nephew in the July 6 attack, Arbogasts uncle pulled the shark to shore, emergency medical personnel retrieved the arm out of the sharks throat. Surgeons later reattached the limb. It wa...

The path to a folded protein, long a subject of debate, appears in many cases to be long and winding

...e proteins rocket down an energy gradient to their destination while others take their time, meandering indiscriminately." Though a fleeting phenomenon, the folding of gangly proteins into tight three-dimensional shapes has broad implications for the growing group of human diseases believed to result from misfol...

Conservation International and National Geographic Traveler announce World Legacy Awards

...tainable if the natural and cultural assets of the destination are protected, and if local people receive economi...ted based on the contribution a project or overall destination makes to nature conservation and cultural heritage; generation of local economic benefit; promotion ...

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