Tag: "representation" at biology news

The lands nobody wanted

...cy the authority to take measures to ensure better representation of species not currently under the purview of public lands....

NIH panel outlines strategies for managing tumors of the adrenal glands

...cortical carcinoma. The 12-member panel included representation from medicine, surgery, endocrinology, pathology, biostatistics, epidemiology, radiology, oncology, and the general public. The panel issued its statement at the conclusion of a two-and-a-half-day NIH State-of-the-Science Conference on Management of...

Wild jaguar photographed in Arizona

...merica and Mexico to make sure that this wonderful representation of our natural heritage persists," Quigley said....

Braille reading strategies may enhance stimulation of the brain responsible for vision

... hypothesis presented stated that expansion of the representation for the Braille reading finger in the somatosensory cortex given prior evidence of remarkable plasticity in this cortex Methodology Sixteen blind, proficient Braille readers from St. Louis were paid volunteers. A detailed neurologic history was ...

'Bat-n-man'

...ggests the presence of a topographically organized representation of a spatial cue in the mammalian auditory cortex. A systematic representation of frequency is present in the primary auditory cortices of all mammals studied, suggesting that it ...

New cellular evolution theory rejects Darwinian assumptions

...d cells, Woese said, was the invention of symbolic representation on the molecular level that is, the capacity to "translate" nucleic acid sequence into amino acid sequence. Human language is another example of the evolutionary potential of symbolic representation, he argues. "It has set Homo sapiens entirely apa...

Wonderfest science festival returns to Stanford Nov. 2-3

...f Technology. Her photographs encompass ''a visual representation of physical phenomena revealing hours of scientists' thinking, years of preparation and lifetimes of exploration.'' The works to be exhibited represent collaborations between Frankel and other scientists, and bring together the beautiful nature of sc...

Imaging study provides new information on how the brain processes sounds of different tones

...nance Imaging (fMRI) study to compare compared the representation of repetition rate across cortical and subcortical...Overall, these results suggest a population neural representation of the beginning and the end of distinct perceptual events that is weak or absent in the inferior co...

Three inferior prefrontal regions of the brain found receptive to somatosensory stimuli

...lation in activity cannot simply reflect a passive representation of touch. In summary, the present studies clearly demonstrate the presence of inferior frontal brain regions responsive to somatosensory stimulation. The areas identified show reasonable correspondence to areas previously observed to possess somatos...

Brain's method of creating mental images differs with the source of cues received

...rate representations of the object's property. One representation comes from the combined visual and haptic cues, th...individual estimates away, keeping only the single representation of the object's property," said Hillis. Why would the brain behave differently when receiving infor...

A new window to view how experiences rewire the brain

... subset of whiskers. This manipulation expands the representation of the intact whiskers at the expense of trimmed whiskers. There was a dramatic effect on spine turn-over. "We found in these animals that there was a pronounced increase in the rate of birth and death of these synapses, as evidenced by increased tur...

Designer molecules correct RNA splicing defects: New strategy for treating many diseases

...in of DNA). Pre-messenger RNA is a "word-for-word" representation of a DNA sequence in the language of RNA. But for reasons that remain unclear to scientists, pre-messenger RNA molecules contain excess "words" that are removed by splicing to create mature messenger RNA (mRNA), the templates that cells use to make p...

The jaws stiffness found to dictate speech production

...were transformed into a six dimensional rigid-body representation of jaw position and orientation in head-centered coordinates. The origin of this new coordinate system is at the tip of the maxillary incisors in the mid-sagittal plane. The "horizontal" axis is aligned with the occlusal plane. Consistent with jaw st...

Mount Holyoke College series examines advances in human reproductive technologies

...ntific and lay terms? What is the impact of visual representation in communicating the science (and fantasy) of human reproduction? How do we weigh the potential benefits of stem-cell research against its perceived ethical and cultural costs? Who is making policy and how? Karen Remmler, codirector of the Weissman ...

Braille found to be essential, regardless of age of blindness

....g., semantic, phonological, or syntactic, acquire representation in visual cortex as a result of adaptations to blindness. A new study tests this hypothesis by studying blind individuals using a language task involving hearing instead of Braille reading. The researchers selected verb generation of "heard nouns" ...

First draft of 'periodic table' of protein structures helps visualize nature's universe of proteins

...constructed of the 498 most common folds is a good representation for all proteins. The Berkeley Structural Genome Center, which he directs, was established two and a half years ago along with eight similar centers in the United States to find the other 9,000 or so structural motifs or families in the protein struc...

New poll shows dramatic rise in Americans' 'DNA I.Q.'

... per household. To ensure a reliable and accurate representation of the total national adult population, completed interviews were weighted to known proportions for age, gender, geographic region, and race. The margin of error for the total sample is plus or minus 3.1%. About kSERO Corporation, Inc.: kSERO Corp...

Click for Crick

...of the Congress. "But it won't be complete without representation from the majority of the human race who live in developing countries. They have the most to gain, and the most to lose from the genetics revolution." James Watson and Francis Crick have agreed to sign an archive quality print of the universally recog...

New findings help explain the dynamics between the dominant and non-dominant arm

... systems were considered: (1) an intrinsic (joint) representation should generalize with mirror symmetry reflecting the joint's symmetry and (2) an extrinsic representation, which should preserve the task's structure in extrinsic coordinates. Both coordinate systems of generalization were compared with a nave contr...

Heinz Maier-Leibnitz Awards 2003

...er focal areas of his research are the point-based representation of graphic objects and processing of geometries on nets. Marc Alexa studied computer science and physics at Darmstadt Technical University, where he also received his doctorate. As a doctoral candidate, he was a guest scientist at the University of T...

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