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Tag: "image" at biology news

NYU researchers decorate virus particles, showing potential to enhance MRI capabilities

...ors on cell surfaces, we may be able to use MRI to image tumors much smaller than can currently be seen." ...

Snakes' virtual glasses, leopard spots and all-optical transistors

...ns –a kind of snake brain firmware - that provides image enhancement as though the snakes were wearing virt...s are small, the physicists kept their model of an image enhancing network simple. They discovered that even a crude network dramatically improves infrared i...

Mapping the protein world

... have to be reconstructed into a three-dimensional image through mathematics and models. This was a very tedious, time-consuming, and subjective process." ARP/wARP was the first, and for a while the only, software that could generate models to fit experimental data automatically and very accurately. It h...

Acidity in the brain could hold the key to stroke treatment

...ue which can be translated into a machine that can image acidity in the brain. "If we can map stroke damage accurately, doctors will have a better chance to provide more targeted and effective treatment. Current techniques often only enable one to see damage once it is too late to intervene." NMR will be...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...ion of cancer within the body. When PET is used to image cancer, a radiopharmaceutical (such as fluorodeoxy... may provide additional beneficial information for image interpretation and create new areas of clinical application. While this technology may become standa...

Surprise finding for stretched DNA

Most of us are familiar with the winding staircase image of DNA, the repository of a biological cell's genetic information. But few of us realize just how tightly that famous double helix is wound. Stretched to its full length, a single molecule of human DNA extends more than three feet, but, when wound ...

Lost in thought: Brain research

...y were asked to think about themselves and how the image or musical selection made them feel. In the second, "sensory-motor" task, they performed quick recognition exercises ?such as identifying pieces that included a trumpet's sound. The scientists were particularly interested in certain regions in the pr...

Combined treatment extends life expectancy for lung cancer patients

... cancerous cells with the guidance of a diagnostic image showing the tumor's location. However, if some cancerous cells have spread into small channels of the lung around the tumor, they tend to be small and not visible on a radiology scan. Thermal ablation, which sends electrical current into the tumor, m...

A new look at the state of the oceans

...sms in the water, from bacteria to jelly fish. The image material and related information on planktonic organisms, e.g. taxonomic descriptions, facilitate the identification of species. The data base was re-installed recently and, at present, holds more than 3000 images and over 500 species descriptions. F...

New light microscope sharpens scientists' focus

...y knew that there was a need for new technology to image cells with resolution greatly superior to what was...ntage of molecules, and the microscope captures an image of those that are turned on until they bleach. The process is repeated approximately 10,000 times, w...

Structure determined for p53 tumor suppressor protein as bound to DNA for anti-cancer activity

...uisite for obtaining the type of three-dimensional image sought in this study.) The researchers found that the dimers formed in solution prior to crystallization attempts took on a form that was incompatible with DNA binding. "There's an inactive form of the p53 dimer that's unable to bind DNA in the cor...

Bubbles go high-tech to fight tumors

...l enough that they don't lodge in vessels. Doctors image the droplets with standard ultrasound, and once the droplets reach their destination, scientists hit them with high intensity ultrasound. The ultrasound acts like a pin popping a water balloon. After the shell pops, the perfluorocarbon expands into a...

MIT 'seeing machine' offers hope to blind

..., or SLO. With the machine they projected a simple image directly onto the retina of one eye, past the hemo...It turns out that she did, and was able to see the image - a stick figure of a turtle. But the turtle wasn't very interesting, Goldring said. So she asked if...

Long-term changes in experience cause neurons to sprout new long-lasting connections

...ugh a small glass window in the animals' skulls to image changes in fluorescence that revealed dendritic alterations present on the neurons. In this most recent experiment, Svoboda's team was looking to see if persistent changes in connectivity occurred after a long-term change in experience. They focused...

New MRI technique quickly builds 3-D images of knees

...dison, the faster technique will enable clinics to image more patients - particularly the burgeoning group ...le a few pieces of information needed to build the image at a time." Consequently, most magnetic resonance technicians acquire images as a series of 2-D sl...

Neuronal cell cultures kept on the straight and narrow

... cells than neuronal cells, which makes it hard to image neuronal cells and measure their activity against the glial background. In a paper in the American Chemical Society's journal Langmuir*, NIST researchers detail a microfluidics technique to culture neuronal cells in relative isolation on a variety o...

Purdue creates new low-cost system to detect bacteria

...dure identifies a bacterial colony by comparing an image of its scatter pattern against a template that contains 120 features described by Zernike polynomials. "A good analogy is the method used by law enforcement to identify a person's face using specialized recognition software," Rajwa said. "You could...

New potential drug target in tuberculosis

...y (MPIIB) in Berlin have now obtained a structural image of a protein that the bacterium needs for survival in human cells. This image reveals features of the molecule that could be targeted by new antibiotic drugs. The results appear ...

New MRI technique shows emphysema in asymptomatic smokers

...and the remaining eight were nonsmokers. The first image the researchers acquired showed obstructed areas o...ungs, where the air was unable to pass. The second image they obtained is called an apparent diffusion coefficient (ADC) map, which shows the size of the air...

Rice scientists make first nanoscale pH meter

...curacy. Inspired by techniques normally applied to image recognition, the team formulated an efficient statistical learning procedure to produce the device output, achieving an average accuracy of 0.1 pH units. The term "pH" was coined by the Danish chemist Søren Sørensen in 1909 as a convenient way of e...

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