Scientists develop first comprehensive theory explaining Madagascar's rich biodiversity
... nation for a comparable period of time. Data and spatial analyses solve the riddle The new hypothesis explaining the evolutionary history of regional speciation in Madagascar's forests is based a study of the island's rivers and associated watersheds coupled with an analysis of 35,400 records of differen...ACS weekly press package — May 1st, 2006
...lity to createchemical gradients with temporal and spatial stability, leading to greaterrepeatability in the experimental conditions," according to theresearchers. ARTICLE #4 - HeadTurner "Chemotaxis Assays of Mouse Sperm on Microfluidic Devices." <ahref="http://pubs.acs.org/cgi-bin/sample.cgi/ancham/a...NYU algorithm enhances ability to detect cancer genes
...etions in the genomes from cancer patients and the spatial relation of the deleted segments to any specific genomic interval. Since the gene-chip consists of many "probes"--each one characterizing an almost unique word and its location in the already-sequenced human genome--by combining these probe-measureme...Whale bubble nets, saxophone sounds, ultrasonic laser
...show will include two sound pieces. "Skratch" uses spatial recording and post-production processing to capture and manipulate the acoustic elements of a billiards game. "Mikey vs. Fabio," a study of the acoustics of a ping-pong game, immerses the listeners in both the spatialized dynamics of the ball and the...American and Dutch experts to discuss risk of catastrophic levee failure in California
...elta. Carel J.J. Eijgenraam, program leader for spatial economics with the CPB Netherlands Bureau for Economic Policy Analysis, will discuss new concepts and insights in flood protection in the Netherlands. Following the flood disaster of 1953, the Dutch developed a risk-based economic approach to establ...News tips from the Journal of Neuroscience
...o functional subdivisions: dorsal areas handle the spatial features of a task, and ventral areas take on obje...tion occurred with maintenance and manipulation of spatial tasks, whereas ventral premotor activation was seen for maintenance and manipulation of color tasks....Mapping dynamic Polycomb group proteins during Drosophila development
...ry complicated process involving both temporal and spatial regulation of genes and pathways. All components of this development are equally as important, and understanding how each of them works reveals a little more about whole organism development. In a study published this week in the open-access journal ...Salk research challenges concept that motion perception is all black and white
...) pathway carries information about color and fine spatial detail. The magnocellular (M) pathway, on the other hand, is colorblind and has poor spatial resolution; instead, it is sensitive to low contrast and rapid changes. The visual cortex uses the i...Fruitfly study shows how evolution wings it
...ferent species," said Carroll. "And, since it is a spatial pattern, it gives us a chance to analyze the evolution of a physical trait. Such traits have size, shape, and length, and they are more complicated than physiological traits. For example, eye color is not a tricky thing to figure out, since it can be...Woods Hole Research Center scientists create satellite map to show Chesapeake Bay urban development
...s were developed for the region at 30-square-meter spatial resolution, and are currently being used for baseline monitoring and modeling activities in the Chesapeake Bay Program restoration effort. The Eos article focuses on use of the regional maps to assess the quality of a new national impervious cover m...Earth from Space: Iceberg knocks the block off Drygalski Ice Tongue
...d these images in Wide Swath Mode (WSM), providing spatial resolution of 150 metres. ASAR can pierce through clouds and local darkness and is capable of differentiating between different types of ice....'Prosthetic' retinal cells let blind mice see light
...s. "In addition, it could potentially achieve high spatial resolution for the restored 'vision' because the approach targets the cellular level. Thus, the expression of microbial-type channelrhodopsins, such as ChR2, in surviving retinal neurons may be another potential strategy for the treatment of complete...Beyond 'blur': Image quality shapes eye growth, but limited criteria apply
...veryday scenes are composed of different grades of spatial details--different "spatial frequencies" --that oc... researchers' first finding was that the different spatial frequencies that occur in images and define localized details, such as edges and lines, are not used...Asleep or awake we retain memory
...l city he or she was exploring on a computer. This spatial navigation task is known to be dependent on the hippocampus, a cerebral structure that plays a vital role in learning. The other session was devoted to acquisition by repetition (or procedural learning) of new visuomotor sequences. For this task, it ...The role of evolutionary genomics in the development of autism
...ered social interactions and language and enhanced spatial and mechanistic cognition and abilities as well as the degree to which the brain functions and structures are altered also supports this hypothesis....Hamster study shows how our brains recognize other individuals
...but those images are relatively fuzzy and lack the spatial resolution necessary for small animals," explained Johnston. "With immunohistochemistry, on the other hand, we can see each individual cell that was activated." The researchers found activity in the brain's anterior dorsal hippocampus and amygdala, a...California researcher to receive prestigious award in biodiversity informatics
...g able to convert verbal descriptions to numerical spatial data is "is bringing large portions of biodiversity information 'to life'", according to Ed Murdy, head of the US delegation to the GBIF Governing Board. The selection of the Prize winner is conducted by the GBIF Science Committee, which in making it...Training improves sound localization in ferrets
...d extent of their improvement. The brain processes spatial cues in the sound waves that enter each ear to loc...at the adult auditory system can adapt to abnormal spatial cues and can do so rapidly with intensive training. By recording brain activity as animals perform t......But the thing that was really unusual here was the spatial structure." The researchers analyzed the sea lice infection rates of more than 12,000 juvenile wild chum and pink salmon as they headed out to sea from their natal rivers. The infection rates were measured in intervals before and for 60 kilometres af...Medieval diaries aid scientists ascertain increase in hot spots due to global warming
... of temperature from 1856 onwards to establish the spatial extent of recent warming, and compared it with evidence from as far back as AD 800 (from tree rings, ice cores and shells). The study found evidence for periods of significant warmth (890 C 1170) in the Northern Hemisphere during medieval times and ...