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Tag: "images" at biology news

New brain scan technology could save babies' lives

...ve technique called optical tomography to generate images showing how the brain is working. In optical tomog...veloping has the potential to produce high-quality images at the cot side and is also cheaper than MRI. It could make an important contribution to the care an...

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...ogy. In conventional clinical settings it produces images of the body by detecting radiation emitted from radioactive substances, such as fluorodeoxyglucose, injected into the body. In the work reported by Witte's group, PET was used to follow immune cells whose DNA included "reporter genes," genes engineer...

PET imaging reveals the immune system at work

...ogy. In conventional clinical settings it produces images of the body by detecting radiation emitted from radioactive substances, such as fluorodeoxyglucose, injected into the body. In the work reported by Witte's group, PET was used to follow immune cells whose DNA included "reporter genes," genes engineer...

Noise And Delays Explain Why Some Genes Oscillate In Activity

...keep the screen blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived monkeys did at least as well as alert mon...

Clocking in Pillow Time without the Pillow

...keep the screen blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived monkeys did at least as well as alert mon...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...ed advanced mathematical techniques to process the images and create a matrix of the extent (or amplitude) of neuronal excitation and inhibition within glomeruli. He retrieved a spatial pattern of synchronized, correlated activity ?the memory trace ?from what appeared to be random fluctuations of neural act...

Zooming in on the protein-conducting channel

...d damaging the molecules, scientists then obtained images of thousands of captive protein complexes. Next, t... two different states from the low-contrast, noisy images produced by the electron microscope. “What we have achieved is a huge jump in resolution of this co...

Brain activity related to processing faces is similar in people with, without autism

...ck and white, fMRI offers digitally enhanced color images of brain function, depicting localized changes in ...localized in the brain and translated into digital images that portray neural activity level as a ratio of oxygenated to de-oxygenated hemoglobin, the iron-co...

Penn study finds direct role for glial cells in brain cross-talk

...nstitute of Mental Health.This release and related images can also be found at: www.uphs.upenn.edu/news ...

Envisat radar surveillance protects endangered prehistoric fish

...s. Using the two spacecraft together means updated images become available daily, downlinked to a dedicated ...d Philippe Schwab, Technical director of CLS. "New images are received in real time, then automatically processed to discriminate radar echoes from vessels in...

Underlying cause of massive pinyon pine die-off revealed

...ough both aerial surveys and analysis of satellite images of those states' pinyon-juniper woodlands. "Scien...NL and the University of Kansas analyzed satellite images of the region's pinyon-juniper woodlands for the years 1989 through 2003 using a measure of vegetati...

The shape of things to come: Morphology database going global

...thousands of high-resolution photographs and other images of plant and animal specimens. Now he is leading a...s." Researchers from across the globe can deposit images documenting animal or plant specimens in MorphBank and retrieve images deposited by their colleagues...

Male elephants woo females with precise chemistry

...the release of a specific proportion of two mirror images of the pheromone, frontalin, depends on whether th...al compounds whose molecular structures are mirror images of each other. Frontalin, a pheromone discharged during musth by male Asian elephants from a tempora...

Researchers develop new method for studying 'mental time travel'

...the experiment, participants studied a total of 90 images in three categories -- celebrity faces, famous loc... participants' brain activity as they recalled the images to see how well it matched the patterns associated with the initial viewing of the images. The resea...

A new window into structural plasticity in the adult visual cortex

...se neurons using two-photon microscopy. Time-lapse images of six pyramidal neurons and eight nonpyramidal neurons in 13 mice were taken over the course of four to ten weeks. The length of dendritic branch tips was measured over time to evaluate physical changes in the neurons. Many studies have focused on ...

Student scientists create living bacterial photographs

...y. The students produced the innovative bacterial images and a bacterial camera as part of MIT's intercolle... to do large-scale, complex computations like make images or create circuits," says Jeff Tabor, a doctoral student at the Institute for Cell and Molecular Bio...

Protein behind autumn color splendor identified

... fact, that it is visible from space--in satellite images of the earth the tropical and temperate forest areas are green. In the tropics there is no autumn, but in our climate deciduous trees and other perennials lose their chlorophyll in the fall. The reason for this is that the proteins in the leaves co...

Purdue's gold nanorods brighten future for medical imaging

...dstream. In tests with mice, the nanorods yielded images nearly 60 times brighter than conventional fluores...ence," which provides higher contrast and brighter images than conventional fluorescent imaging methods. Photons are the individual particles that make up li...

Color perception is not in the eye of the beholder: It's in the brain

First-ever images of living human retinas have yielded a surprise about how we perceive our world. Researchers at the University of Rochester have found that the number of color-sensitive cones in the human retina differs dramatically among people--by up to 40 times--...

FDA approves child-friendly AIDS medicine

...cultural operations, as well as maps and satellite images of schools, neighborhoods, and medical facilities, that will help assess the short and long effects of Katrina on the Gulf region. "With a disaster of this magnitude, people need many things, including easy access to science based information so th...

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