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Tag: "spatial" at biology news

Beyond the book: Software automates access to brain atlases

...e indexes the data in a variety of ways, including spatial maps and alphanumeric information, coming off a single interface. It includes all the information in the printed volumes, in a much more accessible form. It does so without violating copyright, Burns said. Publishers of the atlases make available t...

Mayo Clinic study suggests that a central nervous system viral infection can lead to memory deficits

...human poliovirus). Researchers looked for signs of spatial memory loss in the mice. Mice that contracted the ...gate a maze designed to test various components of spatial memory. The degree of memory impairment, which ranged from no discernable damage to complete devasta...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...lytical method with very high sensitivity and high spatial resolution and high chemical information content.'...ination of sensitivity, analytical information and spatial resolution.'' For the Science study, Boxer and colleagues made a spherical lipid vesicle to model a...

3-D ultrasound scanner could guide robotic surgeries

...of targets in a simulated surgical procedure. That spatial information then guided a robotically controlled surgical instrument right to its mark. The scanner could be coupled to the surgeon-operated robots that are being increasingly used for performing minimally invasive "laparoscopic" surgeries on the h...

Patients to benefit from novel technology revolutionizing high-speed molecular imaging

...een struggling with the inherent trade-off between spatial resolution and sensitivity associated with radionuclide imaging," said Patton. "D-SPECT collects photons with much higher efficiency (order of magnitude) due to usage of a split–scanning detector design capable of dwelling more on the organ of intere...

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...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...escence microtomography to determine, in vivo, the spatial distribution of metals in Arabidopsis seed. Examination of various mutants is shedding light on which transporters influence the distribution of important nutrients such as Iron in the seed. Such information should aid the development of nutrient-ric...

Pathway toward gene silencing described in plants

...gure out not only the order of events but also the spatial organization of the pathway in the nucleus. Our hope for the future is to develop tools that will enable us to watch the pathway function in live cells using fluorescent proteins and time-lapsed microscopy, to learn even more." ...

Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent

...s a part of the brain that plays a role in memory, spatial navigation and sensory motor integration, among other functions. Normally, the hippocampus oscillates at a frequency of 3-12 Hz, a frequency that is called the theta rhythm, Colom explained. Oscillations at theta frequency are important in processi...

'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...

Chemical signaling helps regulate sensory map formation in the brain

...t connections in a way that can consistently relay spatial information. In the January 5, 2006, issue of the...ed pattern of nerve connections required to convey spatial information in the correct order from the eye to the brain. "This is the first biological validatio...

Losing sleep undoes the rejuvenating effects new learning has on the brain

...getting less sleep. But sleep deprivation impairs spatial learning -- including remembering how to get to a ...beginning to understand how that happens: Learning spatial tasks increases the production of new cells in an area of the brain involved with spatial memory cal...

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 - 1170) in the Northern Hemisphere during medieval times and...

High-resolution light microscope reveals the fundamental mechanisms of nerve communication

...ss, 13th April 2006), STED microscopy revealed the spatial distribution of the bruchpilot protein and aided neurobiologists from the European Neuroscience Institute and the University of Würzburgin understanding the protein's central role in the formation of active synaptic zones. STED microscopy radically d...

Cracking the genetic code for control of gene expression

...ent that genes are expressed in tightly controlled spatial and temporal patterns but we do not know the code by which the expression is regulated. In this post-genomic era, the next big goal is to decipher the genetic code of regulation of gene expression. At the University of Helsinki the researchers have ...

Stanford study of owls finds link in brain between sight and sound

...more selectively to sounds that came from the same spatial location as that encoded by the stimulated site. The same stimulation suppressed the auditory system's response to sounds coming from other locations. Selecting certain kinds of information to be processed, while ignoring others, is the root of atte...

Learning and memory stimulated by gut hormone

... directly stimulates the higher brain functions of spatial learning and memory development, and further suggests that we may learn best on an empty stomach. Published in the February 19 online issue of Nature Neuroscience by investigators at Yale and other institutes, the study showed that the hormone ghrel...

Patterns in genome organization may partially explain how microbial cells work

...e signal-processing methods to identify long-range spatial patterns in the arrangement of most sequenced microbial genomes. They related the degree of organization in each genome they studied to various characteristics specific to each species. "Bacterial chromosomes may have something like ZIP codes that f...

Men and women differ in brain use during same tasks

...s who performed memory tasks, verbal tasks, visual spatial tasks and simple motor tasks while their brain activity was monitored with functional Magnetic Resonance Imaging (fMRI) technology. "The results jumped out at us," said Emily Bell, a U of A PhD student in psychiatry and lead author of the paper "Som...

Sensors, a smart dose of medicine for cancer treatment

...ation at micro-Gray resolution over millimetres of spatial resolution. These are then linked to a read-out unit and a PC with dedicated software. The read-out unit is based on ASIC (Application Specific Integrated Circuit) and microprocessor technologies, and its function is to communicate with, and retrie...

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