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lag in Biological News

Travelers can avoid jet lag by resetting their body clocks

A simple, at-home treatment -- a single light box and the over-the-counter drug melatonin -- allows travelers to avoid jet lag by resetting their circadian body clock before crossing several time zones, according to new research being published in The Endocrine Society's Journal of Clinical Endocri...

'The Vision Revolution': Eyes are the source of human 'superpowers'

... emotions on the faces of others. And our clairvoyance is actually an ages-old hack that enables our minds to compensate for the one-tenth of a second lag between when we see something and when the visual information is received by our brain. (The very same delay, Changizi said, is at the heart of most o...

EPA and USDA should create new initiative to better monitor nutrients

...efforts to reduce nutrients in the northern Gulf of Mexico will face significant management, economic, and public policy challenges, as well as a time lag -- a decade at minimum -- between reducing pollutants across the river basin and identifying water-quality improvements downstream in the gulf." Th...

Duke team explains a longtime visual puzzler in new way

... with a moving object -- the flash is perceived to lag behind the position of the object. "The point ...t speeds. Purves and colleagues found that the lag time increased in a nonlinear manner as the moving.... The study thus showed that the perception of lag is the result of accumulated experience with image...

Millisecond brain signals predict response to fast-acting antidepressant

...usion of ketamine. "The ACC may be slow to respond, but not completely impaired, in patients who respond to ketamine," explained Cornwell. The lag in ACC activity could be a window into the dysfunctional workings of the glutamate-related circuitry targeted by the medication, the researchers sugge...

Fishing throws targeted species off balance, Scripps study shows

...re clearly undersized. In the extreme case, the danger of such unstable dynamics for certain populations for management is that harvest targets may lag the population, potentially making things worse, said Sugihara. A high harvest target may be set after an especially abundant period when the populati...

Attack of the invasive garden ants

...t the results imply: Many more infestations of the garden ant are likely to have taken place already, but have remained undiscovered due to the usual lag phase for invasive species to become established. The native range of invasive garden ants is unknown, but is thought to be in the Black Sea regio...

Beginning scientists receive presidential awards

..., are applied, the tiny magnetic dipoles tend to track the applied field. Due to the competition between magnetic torques and viscous drag, there is a lag between the applied field and the average magnetization of the suspension. Rinaldi's work has allowed a precise quantitative description of these and ...

ERS-2 data vital for maritime security

... Key users have also expressed considerable interest in the 30-minute time difference between the overpasses of ERS-2 and Envisat. The minimal time lag allows data to be retrieved and used from ERS-2 when Envisat is being used in a different mode. For example, in the case of oil slick monitoring, Envi...

UCLA/VA partners with ASU to advance biosensor technology for urinary tract infections

...rine specimens are grown in culture dishes until they can be visually identified. The major drawback of this century-old technique is the two-day time lag between specimen collection and bacteria identification. As a result, physicians must decide whether to prescribe antibiotic therapy and, if so, which...

Chemo combination improves survival in asbestos-related cancer

... Mesothelioma is difficult to diagnose, Green said, because "there is a lag of many years between exposure and asbestosis, which is a nonmalignant condition, and a greater lag before the development of overt malignancy." "There is no way of diag...

Gene that makes people 'early to bed and early to rise' demystified

...ld adjust the body's clock in those suffering from conditions including jet lag or shift work sleep disorder, according to the researchers. "This study...changing daily routines, the researchers said. Someday "people with jet lag or shift work--some of the most common of sleep disorders--might take a pil...

Chronic jet-lag conditions hasten death in aged mice

...weekly light-cycle shifts--similar to those that humans experience with jet lag or rotating shift work--experienced significantly higher death rates than d...ll Press. The researchers were led to examine a possible link between jet lag and mortality by something they had noticed in an earlier, unrelated study:...

New dyslexia theory blames 'noise'

... in sounds equally with key distinctions. Manis also cited research from Finland and the United States showing that infants with dyslexic parents lag behind their peers in forming categories for speech sounds. In the conclusion to their study in Psychological Science, the authors speculate tha...

High hourly air pollution levels more than double stroke risk

...r ischaemic stroke, where the arteries in the brain become furred up and narrowed as a result of fatty deposits. This is possibly because the time lag between the start of this type of stroke and death is rather longer than that for a bleed into the brain, say the authors. Pervious research shows ...

New fruit fly protein illuminates circadian response to light

...though circadian function produces a stable rhythm in the body, the biological clock will reset in response to light. The human condition known as jet lag takes place during the period when the body is attempting to resynchronize to the environmental light changes brought on by travel, namely from one ti...

Alaska seal pup diet may hold key to decline of population

...of whether the researchers placed them on a high fat or low fat diet. But smaller seals, regardless of which diet group they were put in, continued to lag behind in weight gain and even lost blubber depth. "Our longitudinal study is leading to a better understanding of the role that fat consumption pl...

Plant-derived vaccines safeguard against deadly plague

...ts. From there, we purify the antigens in an additional one to two weeks to create the vaccine." The approach also eliminates the typical year-long lag time necessary to establish and characterize genetically modified, or transgenic plants. The beauty of system is its potential versatility that ...

New understanding of jet lag

...as using a drug to enhance GABA, the ventral and dorsal parts of the central timekeeper could more quickly move back into harmony. The symptoms of jet lag would then be reduced or eliminated. "The key here is, we now know what the 'rubber band' is: the neurotransmitter GABA that ultimately brings the ...
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