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Tag: "image" at biology news

The shape of things to come: Morphology database going global

... to take a photo of a plant or an animal, send the image to the database and get back a reliable species identification, Gaitros said. Ronquist was working in Sweden in 1998 when he and insect specialists from the United States and Spain started MorphBank as a way to share the more than 1,000 microscopic ...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...r cells without harming surrounding tissue, and to image the formation of tumors long before they have a ch...ady commercially available, can be adapted to both image nanoshells in tumors with higher resolution, and then therapeutically heat them up with a secondary ...

DNA self-assembly used to mass-produce patterned nanostructures

... be seen through atomic force microscopy (AFM). An image of the grids with the letter patterns is available at http://www.dukenews.duke.edu/mmedia/hires/dna.jpg >. The scientists, members of the Triangle-area TROIKA collaboration to construct computing devices using DNA, were able to create the grid...

Bacteria which sense the Earth's magnetic field

... together into irregularly arranged clusters. (see image 1) The scientists genetically marked the MamJ protein with the fluorescent reporter protein GFP ("green fluorescent protein") and could thus track the fusion protein in the living bacteria cells. As they suspected, the protein was associated with th...

Student scientists create living bacterial photographs

... The device projects the pattern of light--like an image of one of the Texas students' co-advisers, Dr. Andy "Escherichia" Ellington--onto the dish of bacteria growing at body temperature in an incubator. After about 12-15 hours of exposure (the time it takes for a bacterial population to grow and fill the...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...ology allowed them to delve into each pixel of the image produced by a trio of satellites and determine the...st, the conventional interpretation of a satellite image would consider each pixel as entirely forested or deforested.) "This method gives us an incredible ...

'Smart' nanoprobes light up disease

...ntly a critical need for methods to simultaneously image the activity of multiple proteases in vivo," said Drezek. "This is important not only for early detection of several diseases, but perhaps more significantly, in understanding and monitoring the efficacy of therapeutic interventions, including the gr...

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

...ains than by our eyes. "We were able to precisely image and count the color-receptive cones in a living hu...e. In addition, the technique allows scientists to image more than a thousand cones at once, giving an unprecedented look at the composition and distribution...

North & South American researchers find architectural abnormalities in T. cruzi ribosome

...n of large molecules using electron microscopy and image processing. Levin told him the story of Chagas and...t as well. To date, however, no atomic-resolution image of eukaryotic ribosomes exists, and all images produced so far have been the result of Frank's elect...

NASA satellite data provides rapid analysis of Amazon deforestation

..., it would take about ten years to get a composite image of the area. To make matters worse, its landscape ...ing requirements. And, in tropical forest regions, image quality is often reduced by cloud cover and infrequent coverage of high-resolution images. But MODIS...

New law for resolution allows unprecedented sharpness in fluorescence microscopy

...r spot due to diffraction. It seemed impossible to image details smaller than a distance where delta d is e...esearchers show that STED microscopy allows one to image lithographic structures (which had been previously dyed with a fluorescent dye) of width as small as...

Retina adapts to seek the unexpected, ignore the commonplace

...e forces of evolution in adaptation to the average image structure of natural environments. "Yet animals encounter many environments with visual statistics different from this hypothetical 'average' scene," Meister says. "We have found that when this happens, the retina adjusts its processing dynamically:...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

...a way to simply convert harmful algae data into an image field that can be easily accessed to map out the deadly algae's location and where it may travel. The new software is designed to incorporate multiple computer vision algorithms and the domain knowledge from NOAA scientists. "Spatiotemporal data min...

Unweaving amyloid fibers to solve prion puzzles

...ecular structures. Conventional techniques used to image proteins, such as X-ray crystallography and nuclear magnetic resonance imaging, don't work with fibrous structures such as amyloids. And scientists depend on these high resolution images of molecules in order to study their function. Now, researcher...

New bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity

...d financial data analysis to voice recognition and image processing. Applied to gene regulation, the approach was able to predict the location of regulatory sites for about one-third of the genes in the yeast genome - a success rate as good as or better than other current techniques. "The next step is to ...

Insight into our sight: A new view on the evolution of the eye lens

...on the ability of our eye to form a clear, focused image on the retina. The critical component in focusing is the eye lens, and the physical properties that underlie the transparency of the lens, as well as its ability to precisely refract light, arise from the high concentrations of special proteins calle...

UIC researchers show protein routes messages in nerve cells

... where, for example, a sound may have taste, or an image may have a smell. The molecular basis of this condition remains unknown. "It all comes down to the receptors being in the right place at the right time," said Featherstone. "So our question was, how do these receptors know where they're supposed to ...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...ntum dots maintain their brightness for hours. The image on the right shows a culture labeled with green fluorescent protein while the image on the left shows a culture labeled with red quantum dots. Click on the start button to see how much...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...ly show how the storm churns the sea surface. This image has then been used to derive Rita's wind field spe...ired this Advanced Synthetic Aperture Radar (ASAR) image at 0344 UTC on 22 September (2345 on 21 September in US Eastern Daylight Saving Time), when Hurrican...

Mechanism regulating tooth shape formulation found

...in is the first gene that is expressed as a mirror image of the future cusps. The team generated a mouse that has no functional ectodin. Whereas the mice appear fairly normal, the areas forming cusps were much broader resulting in cheek teeth whose shape resembles more rhinoceros teeth than mouse teeth. ...

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