Tag: "patterns" at biology news
Childhood sleep-disordered breathing severity related to tonsil size, oropharyngeal volume
...thing (SDB) is characterized by abnormal breathing patterns
during slumber, with sleep apnea the most recognizable form. Although SBD is commonly known to affect adults, few realize that about two percent of children are affected. The mechanisms of SDB during development are unclear. To test a hypothesis t...
UCLA study sheds new light on island evolution
...cestors. "It's quite amazing to think that weather patterns
can affect the evolution of island lizards, but the patterns
of dispersal match up so well with the direction of ocean currents that the conclusion is almost una...
Left side of brain activates speech from birth
...ever, definite left-hemisphere-dominant activation patterns
appeared during the portions of the tapes containing speech, as opposed to during the portions containing scanner noise. These early findings challenge the conventional theory that lateralization of language to the left hemisphere is progressive unti...
USGS December science picks!
...eography, according to USGS researchers. The maze patterns
can take the face of famous people, maps, flags, d...e the planet, "Earth as Art 2" images show natural patterns
as art. More than 30 satellite images were selected for the exhibit based on their aesthetic value r...
All sides are not created equal as babies process speech
...eech, definite left-hemisphere-dominant activation patterns
were apparent during the portions of the tapes containing speech, as opposed to during the portions containing scanner noise. These early findings challenge the conventional notion that lateralization of language to the left hemisphere is progressive...
Researchers call for trials of menstrual cycle monitors used for natural family planning
...cope, which rely on the user recognising 'ferning' patterns
from small samples of saliva or cervical mucus. Ferning patterns
indicate fertility, so an absence of 'ferning' indicates a non-fertile day. But, the three systems u...
Three molecular-targeted compounds show promise against cancers
... experimental compound that alters certain genetic patterns
of cells. Researchers at Memorial Sloan Kettering Cancer Center led the first-ever human study of this pill in a 60-patient, Phase I study of the compound called suberoylanilide hydroxamic acid or SAHA. "The results of our clinical trial demonstrate ...
Climate linked to reproduction of right whales
...imate changes, atmospheric temperatures and winds; patterns
in ocean currents, water temperature and salinity; the food resources required by whales and other animals; and the reproductive success of right whales. Details of the whale-climate studies are reported by Charles H. Greene and Andrew J. Pershing, o...
Mantis shrimp fluoresce to enhance signaling in the dim ocean depths
...t people don't have a clue what these fluorescence patterns
in other organisms might mean, if they mean anything at all. In fact, if you go out and look at coral and algae and algae in corals at 30 to 40 meters, you see all different kinds of colors - greens and oranges and yellows. It's probably just a bypro...
Nicotine exposure in aging hearts
...o inducible AT/AF, and atrial activation wavefront patterns
during induced AT and AF. The hearts were stained with a voltage-sensitive dye that was injected through the aorta and illuminated. All statistical analyses were performed using GB-Stat. The data were expressed as means + SD. Statistical tests were...
Press briefings at The Gerontological Society of Americas 56th Annual Scientific Meeting
...hanges in the middle age set the stage for varying patterns
of brain aging in later years for men and women. (Dr. Corder's work can be viewed in the Epidemiology and Aging Interest Group Session held Sunday, November 24, at 7 p.m. in San Diego Salon C of the Marriott Hotel. Members of the press are invited to...
Isotopes from feathers reveal bird migration
Using naturally occurring patterns
of stable-isotopes created by weather and plants, ...n, carbon, and nitrogen. These vary in predictable patterns
across North America. Duxbury will be presenting a paper on his work on Wednesday, November 5, at t...
Children with HIV more likely to utilize health services than infected adults
...ne of the first to examine health care utilization patterns
of HIV-infected children since the widespread use of HAART also suggest that the demand for care for HIV-positive children means we need to look carefully at how we are delivering it and what more we can do to improve access and services," he added....
Pack rat middens give unique view on evolution and climate change in past million years
...d have shown that, through time, the morphological patterns
within that species have changed. "But we think we're looking at change within a species, not necessarily a speciation event." "This study shows that, while we can draw a firm boundary around a species we see today in the landscape, we can't draw a ...
Beyond biology: Simple system yields custom-designed proteins
...ith good structures tend to have certain repeating patterns
of oil-loving and water-loving amino acids. For example, taking a string of water-loving units -- no matter which ones -- and inserting any oil-loving unit every three or four positions typically creates proteins that fold into bundles of helices. He...
Gene-expression atlas will provide new direction for brain and spinal-cord studies
...essed in that area. We may well see new expression patterns
-- in which different genes are expressed in different subsets of cells -- that tell us these areas are not as homogeneous as we believed. This tells is that there is some new biology going on that we didn't suspect. Thus, these mice will be an inval...
UB researchers show first evidence of pharmacogenomic differences in patients' responses to MS drug
... results show that IFN-beta-1a initiates different patterns
of genetic expression in different MS patients, information that could lead to better, and potentially individualized, treatments. Results of the study were presented Oct. 21 at the annual meeting of the American Neurological Association in San Fran...
How many fish in the sea? Census of Marine Life launches first report
...electronic tagging technologies to study migration patterns
and behaviors of large open-ocean animals and the oceanographic factors that influence them. The objective is to infer from the behavior of animals at the top of the food chain an explanation of their abundance and distribution; An Underwater Moun...
Adaptive mutation is common in E. coli, say IU researchers
...l. Foster and Layton studied the Pol IV expression patterns
of 24 experimental strains of E. coli. Some strains had a functional Pol IV, and some didn't. Some strains had a functional form of the stress protein sigma-38, and some didn't. Cellular levels of sigma-38 increase during stationary phase, a slow-gro...
Book shows patterns within the bell curve
Complex, ordered patterns
hidden within the ubiquitous bell-shaped curve are...the same simple mathematical operations can create patterns
of great beauty and complexity from a simple bell curve. When enough of these patterns
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