Tag: "sleeping" at biology news
USGS Cautions Proper Use Of Pepper Spray To Avoid Bear Attacks
...ers are encouraged tocarefully rid their tents and sleeping
areas of articles that might smell,including tooth...anisters should not be kept in or near thetents of sleeping
persons because of the possibility that red pepper sprayresidues on canister nozzles may attract bea...
Penn Researchers Prove "Short-Cut" Function Of Myelin Sheath Channel: BetterUnderstanding Of Myelin Should Lead To Therapies For Neuropathies
...rtebrates. "It's very peculiar in that it's like a sleeping
bag all rolled uparound the axon, the nerve cell inside," remarks Scherer. The sheath allows forthe fast conduction times seen in higher vertebrates. Because of its manylayers, the sheath might limit diffusion of necessary substances to and from thec...
At Night, Birds May Review The Songs They Learn During The Day
...anted to know if the patterns we were getting from sleeping
and wakeful birdswere strongly tied to the brain's... wants to compare the RA bursting patterns seen in sleeping
birds topatterns generated in regions of the brain when the bird is singing its ownsong. If the pat...
Melatonin: More Than You Bargain For?
... in only very low concentrations. It is sold as a sleeping
aid and as anantioxidant. However, chemists William A. Pryor and Giuseppe L. Squadrito ofthe university's Biodynamics Institute say that the antioxidant properties ofmelatonin are very modest at best and that metabolizing excess melatonin maycause m...
Protein Misfolding, Not Mutant Gene, Key To Lethal Sleep Disorder
...e "all in his head," but after aboutfour months of sleeping
an average of one hour per night the patient began tohave trouble walking, lost weight and produced tears excessively (consistentwith the witches' curse to "dwindle, peak and pine"). The patient was referred to Dr. Mastrianni (at that time, a clinica...
SIDS prevention tactic leads to epidemic of 'misshapen head' in infants
... exercises, whichare performed by the parents. The sleeping
position must also be altered totrain the baby not to lie on the flattened part of the head, allowing this areato fill in properly. This can be accomplished by using an infant positioningdevice and placing favorite toys and stimulating objects on the...
Experiments illuminate workings of biological clocks
...oughly 24-hour cycle thatgoverns such functions as sleeping
and waking, rest and activity, fluid balance,body temperature, cardiac output, oxygen consumption and endocrine glandsecretion. In previous studies, Sehgal and others had shown that the amount of thetimeless protein (TIM) present in a fly's brain i...
Study confirms safety and tolerability of zaleplon for long-term treatment of insomnia
...a may be caused by many things, such as a changein sleeping
or daily environments; a new home or job; jet lag; a new workschedule; pain from arthritis, headache, menstrual cramps, or backache; stressor anxiety; or use of certain medications. Chronic insomnia, or insomnia thatlasts for more than one month, ma...
Faulty practices threaten condor program
...pped through the side of a camper1s tent as he lay sleeping
within. Only one release site, near Big Sur, Calif., has had a purely parent-reared group of condors, and it has been essentially free of tameness problems, Meretsky said. Unfortunately, these birds recently expanded their range and joined one of ...
Disposable nappies may explain the increase in male infertility
...appies. Temperature was measured during waking and sleeping
hours; and rectal temperature was also measured for comparison. Temperature was consistently and significantly higher - up to 1° C above body temperature - when the disposable nappies were worn. The highest temperatures were recorded ...
Researchers discover major diabetes susceptibility gene
...th a more frugal energy balance, such as decreased sleeping
metabolic rate and a tendency to hoard rather than burn' glucose. The genetic variation does not cause diabetes by itself, the authors emphasize. The calpain 10 gene interacts with lifestyle factors such as diet, exercise and other genes, particul...
Ringling Bros. announces four Asian elephant pregnancies at Center for Elephant Conservation
...by the final three months, the handlers will start sleeping
in the barn so they can keep a watchful eye on the elephants. The elephants mammary glands will develop and begin to produce milk in the final month. When their progesterone levels show low readings, labor is imminent. Upon delivery, the newborn e...
Singing silently during sleep helps birds learn songs
...ocess, University of Chicago researchers show that sleeping
songbirds replay, rehearse and, perhaps, reinforce... of each neuron while the awake bird sang, while a sleeping
bird could hear a recording of its own song, and during undisturbed sleep. While the birds are awa...
Bill & Melinda Gates Foundation awards $15.1 million to treat African sleeping sickness, leishmaniasis
...l scientist, to develop new drugs to fight African sleeping
sickness and leishmaniasis -- two diseases that ar...n parasitic diseases: African trypanosomiasis, or sleeping
sickness, and leishmaniasis. Dr. Richard R. Tidwell, a professor in UNC-Chapel Hill's schools of med...
Chemistry in the Amazon: Tropical birds, Amazonian tribespeople derive medicinal benefits from insects, plants
...el biting and stinging insects, the worst enemy of sleeping
birds. Butterflies and moth caterpillars are known to sequester their defense from toxic plants; Rodriguez' research shows that vertebrates, including birds and poisonous frogs, also acquire their defense through their diet. Rodriguez will also d...
Banning animals from the bedroom could reduce Chagas Disease risk, say Science researchers
...panosoma cruzi , an American cousin to the African sleeping
sickness parasite. T. cruzi is transmitted throu...essage that keeping domestic animals out of indoor sleeping
areas can reduce the prevalence of the Chagas parasite in bugs and the risk of infection in humans. ...
Researchers' mathematical model provides chagas disease insights
...ion rates grow for humans as people share domestic sleeping
quarters with infected dogs. The mathematical mod...gas disease; and exclusion of infected dogs from sleeping
areas will virtually eliminate transmission of the parasite, at least in semi-arid settings like tho...
Drowsy fruit flies illuminate first molecular pathway, in any species, known to regulate rest and wakefulness
...x to 10 hours a day resting, mostly at night. "The sleeping
flies lie prone in a quiet corner, unresponsive to stimuli, for bouts averaging about 45 minutes but sometimes lasting up to two-and-a-half hours," Hendricks said. "These sessions are interspersed with very brief, one- to two-minute interruptions, d...
New research findings offers possible clues for avoiding sudden infant death syndrome (SIDS)
...more important factor when death occurs in infants sleeping
with their faces covered by soft porous bedding ...ir. To further explore the consequences of infants sleeping
facedown on soft bedding, a team of researchers evaluated four aspects of gas exchange: (1) infants'...
Tracing the neural circuitry of second sight
...an, clocks operate on a 24-hour cycle that governs sleeping
and waking, rest and activity, body temperature, cardiac output, oxygen consumption and endocrine gland secretion. In mammals, the internal circadian clock resides in the brain, and sunlight is the cue that resets this clock daily. Basic insights int...
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