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Tag: "images" at biology news

Heart failure: Intervention possibilities from imaging programmed cell loss

... produces three-dimensional computer-reconstructed images to reveal information about both structure and function to measure the amount of annexin A5 absorbed. Annexin A5 bound to the damaged heart muscle. "We discovered that higher uptake was uptake with a worse outcome. Cell death is one of the biological...

Imaging pinpoints brain regions that 'see the future'

Human memory, the ability to recall vivid mental images of past experiences, has been studied extensively ...s known about how we go about forming these mental images of the future," says Karl Szpunar, lead author of the study and a psychology doctoral student in Art...

MIT model helps researchers 'see' brain development

... By applying computer graphics techniques to brain images collected using magnetic resonance (MR) imaging, t...(MGH). The team started with a collection of MR images from 11 developing brains, provided by Ellen Grant, chief of pediatric radiology at MGH and the Mart...

Mimicking how the brain recognizes street scenes

... how the team "showed" the model randomly selected images so that it could "learn" to identify commonly occu...his system seems to work on realistic street scene images is a concept proof that the activity of neurons as measured in the lab is sufficient to explain how ...

Bacterial walls come tumbling down

The first detailed images of an elusive drug target on the outer wall of bac...ctive weapon against the infamous superbug. The images produced by Strynadka's team show the enzyme frozen in place by a powerful antibiotic called moenomy...

Using brain scans, researchers find evidence for a two-stage model of human perceptual learning

...unteers were given several hours of training using images of the cars. In these sessions, participants had t... finally asked subjects to categorize the same car images shown in the other scans. This time, two areas of the brain, the now familiar area in lateral occipi...

Illuminating the dark side of plants

... each plant's distinguishing characteristics. The images include 398 full-color photographs as well as color plates from the LuEsther T. Mertz Library of The New York Botanical Garden. The book contains vital information on a broad variety of poisonous and injurious temperate and tropical plants such as...

A case of mistaken identity for the ivory-billed woodpecker?

...open access journal BMC Biology shows how fleeting images thought to be the Ivory-billed Woodpecker Campephilus principalis could be another native woodpecker species. J. Martin Collinson compared David Luneau's Arkansas video footage from April 2004 of the supposed Ivory-billed Woodpecker with fresh foota...

Chemical switch triggers critical cell activities

... off the crystals to create computer-generated 3-D images of the molecules. The goal was to create a freeze-frame image that captured the fleeting moment when E2 is next to NEDD8, just before it falls off and carries NEDD8 with it. To do that, Schulman's team first had to prevent E2 from binding with NE...

Computer scientists join in search for ivory-billed woodpecker

...'s very difficult to capture." The robot stores images of the birds it has recorded in the hard disks of ...neau enlists fellow birdwatchers to scrutinize the images stored in the hard disks for a shot of the ivory-billed woodpecker. In addition to Luneau, the Ar...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...e original descriptions of the lesions with modern images of 50 benign ulcers and 50 gastric cancers. They determined that no benign cancer could look like the lesion described in the autopsy. "It was a huge mass from the entrance of his stomach to the exit. It was at least 10 centimeters long. Size alon...

Prehistoric mystery organism verified as giant fungus

...to hundreds of thin sections and made thousands of images taken through microscopes to determine the organism’s identity. Now Boyce, Hotton and their colleagues have produced independent evidence that supports Hueber’s case. The team did so by analyzing two varieties—isotopes—of carbon contained in Proto...

Ultrasound upgrade produces images that work like 3-D movies

...an even more realistic perception of depth. Paired images seem to pop out of the screen when viewed with the...when viewing a single, flat image. Stereoscopic images solve that problem by taking two "snapshots" of the same object from slightly different angles, mimi...

Novel computed imaging technique uses blurry images to enhance view

...croscopy that can produce crisp, three-dimensional images from blurry, out-of-focus data. Called Interferom...ferometer to obtain high-resolution, reconstructed images from the optical signals based on an understanding of the physics of light-scattering within the sam...

How T lymphocytes attack

...y researchers at the Institut Curie. The original images obtained and assembled in twelve video sequences are the result of close collaboration between a specialist in two-photon microscopy, Luc Fetler, an INSERM scientist in the CNRS/Institut Curie "Physical Chemistry Curie" Unit1, and immunologists, nota...

Satellites shed light on global warming

...eninsula in the face of this warming through radar images acquired by ESA’s ERS and Envisat satellites. ...adar (ASAR) allows Envisat to produce high-quality images of ice sheets because it is able to pierce through clouds and darkness. In addition to mapping i...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...cides and fertilizers, on the reef corals. The images challenge the traditional school of hydrological m... scientists hadn't thought to look before." The images were taken from NASA's MODIS satellite by GeoScience Australia's Alice Springs site for a new produc...

'The eyes have it' -- Autism research yields surprising results

...cial expressions on a laptop screen. In the facial images used, the eyes and mouth were either ‘freeze-framed?in a neutral expression, or animated and expressive. By showing a sequence of different combinations, they were able to gauge which aspects of the face were used by the autistic children to ‘read?so...

Cancer cells forming blood vessels send their copper to the edge

...ergy-dispersive detector, the researchers obtained images displaying the concentration and spatial distribut...zinc. Overlaying these elemental maps onto optical images of the cells, Finney and her colleagues then correlated elemental content with cellular structures. ...

New fMRI technology making brain tumor surgery safer

...ity of life. Functional MRI creates a series of images that capture blood oxygen levels in parts of the brain that are responsible for movement, perception, and cognition. Functional MRI, which reveals the brain in action, differs from standard MRI, which provides a static image. “This is a quantum le...

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