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Tag: "movements" at biology news

Neurologix announces positive results of gene therapy clinical trial in Parkinson's disease

...me overactive, causing the characteristic impaired movements associated with Parkinson's disease. The interim UPDRS scores are highly promising and, if they are borne out with additional data, would be comparable to results seen with STN Deep Brain Stimulation. Unlike deep brain stimulation, however, our gen...

Study identifies gene in mice that may control risk-taking behavior in humans

...researchers found. These mice did not freeze their movements as often in anticipation of the mild shock. To assess the level of unconditioned fear in mice with a single copy of the neuroD2 gene, researchers put them into a situation that would elicit a fear response in normal mice. They used a maze elevated ...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

...heir experiments, the researchers compared the eye movements of humans and rhesus macaque monkeys when they wer...ue to measure with high accuracy and speed the eye movements of the subjects. Explained Platt, 'Our prediction was that if seeing a monkey looking in one directi...

Can't serve an ace? Could be muscle fatigue

...diseases such as Parkinson's disease. The abnormal movements were likely to relate, in part, to a disturbed sense of effort, he said. ...

Drawing with DNA: 'Bioart' illuminates genomics

... A whole-body computer vision interface tracks the movements of visitors and allows them to interact with the installation. By moving their bodies slowly within the space, visitors can draw shimmering light-filled traces. When a trace sufficiently matches a pictogram in the human dataset, it triggers a real-ti...

Vietnam war technology could aid elephant conservation

Seismic sensors developed to track enemy troop movements during the Vietnam war could help ecologists monitor and conserve elephant populations, according to new research published in the British Ecological Society's Journal of Applied Ecology. Dr Jason Wood and colleagues from Stanford University recorde...

Motor transport in bio-nano systems

...which can be as long as half a meter. All of these movements are based on two molecular components: very thin rod-like filaments, which form a complex network of rails, and molecular motors, which move along those filaments and carry vesicles and other nanocargo along. When bound to the filaments, the motors a...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

... is shaken, but the length of and time between the movements that signal the embryos to hatch. Undisturbed, red-eyed tree frog eggs usually hatch six to eight days after fertilization, but can hatch up to 30 percent earlier if attacked by animals such as snakes or wasps. At her open-air laboratory at the Gam...

Scientists discover global pattern of big fish diversity in open oceans

...efforts. Overlaying detailed information on animal movements and shifts in local oceanographic habitats will help refine actual boundaries for marine parks. Scientists hope that the global perspective provided by this paper will encourage fisheries managers to move out of a single species and single location ...

Two new retroviruses—transmitted from animals—identified

...reverse-image views that require counter-intuitive movements by surgeons (whereby the surgeon must move his han...y translating their natural hand, wrist and finger movements at the console into corresponding micro-movements of laparoscopic surgical instruments inside the pa...

Penn Researchers Use Robotic Surgery

...reverse-image views that require counter-intuitive movements by surgeons (whereby the surgeon must move his han...y translating their natural hand, wrist and finger movements at the console into corresponding micro-movements of laparoscopic surgical instruments inside the pa...

Remote control flies? Fly behavior controlled by laser light

...ons are related to specific behaviors, from simple movements to more complex behaviors like learning, aggressio...fiber system controls very specific, stereotypical movements such as escape movements, jumping, and the beginnings of flight. If the flies engaged in these behav...

Bobbing birds do it for a reason

...al fields only transiently, through the use of eye movements alone, and accept quite a lot of so-called "visual...round--whooping cranes exhibit high-amplitude head movements during locomotion, making the measurement of the speed of the head relatively easy via non-invasive ...

Scientists reveal the shape of a protein that helps retroviruses break into cells

...ss mountain passes quite easily suddenly had their movements severely restricted," Huey said. He calculated that when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the early Triassic period, sea-level oxygen cont...

Low oxygen likely made Great Dying worse, greatly delayed recovery

...ss mountain passes quite easily suddenly had their movements severely restricted," Huey said. He calculated that when the oxygen level hit 16 percent, breathing at sea level would have been like trying to breathe at the summit of a 9,200-foot mountain today. By the early Triassic period, sea-level oxygen cont...

Researchers develop assay that could be applied to drug screening

... David Perrais, simultaneously measured the minute movements made by coated pits as they invaginated and detected membrane scission, the process by which a coated pit is converted into a clathrin coated vesicle. In further experiments, the researchers showed how proteins linked to the actin framework of the ce...

Researchers make surprise discovery that some neurons can transmit three signals at once

... believing that our senses, thoughts, feelings and movements are orchestrated by a communication network of brain cells, or neurons, each responsible for relaying one specific chemical message called a neurotransmitter. Either neurons release a neurotransmitter that excites a neighboring cell, thereby triggeri...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...orm part of the brain pathway that controls muscle movements related to singing. The neurons that are not replaced send their projections to a different brain region, one that controls the song learning pathway. In order to label the two cell types, the scientists injected dyes of different colors, one green a...

Norovirus, AIDS vaccine and Hepatitis Virus

...hea (TD). TD, defined as three or more loose stool movements in a 24-hour period, frequently results from exposure to bacterial or viral pathogens. Noroviruses (NoV's) are considered to be one of the leading causes of nonbacterial gastro-related illnesses resulting in over 23 million cases annually. In the st...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...rate imaging technique have shed light on the tiny movements of molecular motors that shuttle material within l... as well." The researchers also noted that faster movements occurred with the same step size, but with greater rapidity. When measured outside the cell, kinesin...

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