maneuver in Biological News

How alligators rock and roll

... University of Utah biologists discovered gators maneuver silently by using their diaphragm, pelvic, ... but important means for other aquatic animals to maneuver in water without actively swimming, says C.G. ... says the new study asked how gators manage to maneuver so gracefully without the fins and flippers used ...

Clinical trial shows quadriplegics can operate powered wheelchair with tongue drive system

... An assistive technology that enables individuals to maneuver a powered wheelchair or control a mouse cursor using simple tongue movements can be operated by individuals with high-level spinal cord injuries, ...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

... with less scarring. For years, scientists have used the energy in laser light to drill microscopic holes or as tweezers or traps to direct and maneuver small pieces of matter. Guiding entire cells, though, has proven difficult because the lasers used for manipulation tend to damage the structural ...

Olympus advances technology for laparo-endoscopic single-site surgery

... is nearly impossible to do without the Olympus EndoEYE, which provides an exceptional digital image while being small and flexible enough to maneuver with other instruments in a small space," continued Dr. Ross. "The EndoEYE allows us to view the surgical field from multiple angles giving the ...

Brown-led team offers first look at how bats land

... research team for the first time has caught on film how bats land. Their findings were surprising: tree-roosting bats execute a different landing maneuver than cave-dwelling ... Click here for more information. ...

American Chemical Society's weekly PressPac -- Jan. 14, 2009

... have made experimental "grippers" in the lab, these devices generally require the use of batteries and wiring, making them hard to miniaturize and maneuver in small spaces and convoluted conduits. The researchers describe development of tiny metallic microgrippers shaped like a hand that work without ...

Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25

... at the University of California, Santa Cruz, the scientists measured the flows produced by two dolphins doing tailstands--a Sea World-worthy maneuver in which dolphins hold themselves vertically out of the water, using quick, strong oscillations of their tail. The data revealed that special skin ...

Advice to the new administration: UM foreign and domestic policy guide

... America's military, we are in real danger of losing the next decade's important wars." Levine argues that our military has mastered conventional maneuver warfare, yet is unlikely to spend most of its time engaged in these fights. Indeed the Department of Defense has made "stability operations" a core ...

Mobilizing white blood cells to the lung: New discovery could lead to an improved influenza vaccine

... research in the Trudeau Institute laboratory of Dr. David Woodland offers important insights into the navigational aids used by these cells as they maneuver through the human body. Trudeau investigators have shown that lungs which have been infected with the influenza virus produce a series of chemicals, ...

Using nanotechnology, UCLA researchers discover cancer cells 'feel' much softer than normal cells

... metastatic, or invading other organs, the diseased cells must travel throughout the body. Because the cells need to enter the bloodstream and maneuver through tight anatomical spaces, cancer cells are much more flexible, or softer, than normal cells. These spreading, invading cancer cells can cause ...

Squid-inspired design could mean better handling of underwater vehicles

... of compact vortex generators that could make it easier for scientists to maneuver and dock underwater vehicles at low speeds and with greater precision. ... minimal energy, their hydrodynamic design makes them more difficult to maneuver or dock at low speeds and in tight spaces, or to hover in precise ...

New technique will produce a better chromosome map

... Current methods for preparing polytene cells for viewing under a light microscope involve using a thumb, pencil, forceps or other instrument to maneuver and press the cells between a glass coverslip and slide. Only about 10 percent of the slides processed this way provide useable images and even those ...

Himalayan forests disappearing

... to manipulate joysticks to move a cursor on a computer screen from a starting point to a goal. Importantly, the researchers required the monkeys to maneuver the cursor within a maze to reach the goal and to perform those maneuvers in a discrete stepwise fashion with pauses in between. This stepwise ...

The brain's executive is an 'event planner'

... to manipulate joysticks to move a cursor on a computer screen from a starting point to a goal. Importantly, the researchers required the monkeys to maneuver the cursor within a maze to reach the goal and to perform those maneuvers in a discrete stepwise fashion with pauses in between. This stepwise ...

Discovery of agile molecular motors could aid in treating motor neuron diseases

... microtubules are packed together, with proteins studded along them, and cellular organelles and mitochondria are crammed in. The motor needs to maneuver around those 'obstructions.'" Goldman and Holzbaur suggest that the ability of the dynein-dynactin motor to move in both directions along the ...

Plant defenses prompt bacterial countermeasure in the form of 'island' DNA excision

... Seeking to catch an arms-race maneuver in action, researchers have uncovered new evidence to explain how bacteria in the process of infecting a plant can shift molecular gears by excising ...

Prions rapidly 'remodel' good protein into bad, Brown study shows

... form in yeast: The protein converts to the prion form, rendering it infectious. In an instant, good protein goes bad. This quick-change "mating" maneuver sheds important light on the mysterious molecular machinery behind prions, infectious proteins that cause fatal brain ailments such as mad cow ...