image 2 5

Tag: "image" at biology news

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...l multi-photon microscopes using infrared beams to image fluorescent cells in living tissues became commercially available in the late 1990s. That prompted von Andrian to embark on a project to use the technology to study the immune system. He set up his lab at the CBR Institute and developed a strain of ...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

... running Clustermatic 3, the largest single-system image Linux cluster in the world. Pink's nodes have dual 2.4 GHz Intel Xeon processors (Pentium 4) with 2 gigabytes of memory per node. The purchase of the Science Appliance was funded by the National Nuclear Security Administration's Advanced Simulation a...

Plants used to detect gas leaks, from outer space!

...e plants are stressed", says Steven. "A satellite image of the stress responses in vegetation should identify gas leaks at least as well as a visual report from a helicopter, which is the current method, and would be safer and possibly cheaper." Steven will present his research on Thursday 6th April at t...

Unraveling the viral mechanism

... and Molecular Biophysics (SCBMB), developed a new image reconstruction algorithm. These developments enabled him and his co-authors at MIT to see through the bacteriophage at very high resolution. "It turns out that, in addition to the surface protein, there are other proteins that make this virus via...

Scientists identify molecular structure of key viral protein

...h intensity X-rays for enabling the researchers to image the structure at 2.85 angstroms. (An angstrom is one ten-billionth of a meter, or about one-hundred-millionth of an inch.) This resolution was critical for an accurate picture of how the 10,805 atoms in the structure are assembled. ...

One in 14 men having a heart attack drive themselves to hospital

... O'Donnell. "And it's also time to challenge the image of the typical male heart attack victim. "We are particularly concerned that women face much longer delays, both in the time it takes them to get to the hospital and in receiving treatment and being admitted when they arrive. "Women need to be...

Relationship of brain and skull more than just packaging

...an exact fit." T scans record a three-dimensional image of the skull while MRIs provide a three-dimensional brain image. The researchers caution that the number of infants studied in this way is small at this point, but they found that the brain and skull are strongly integrated. "We also expected to se...

The giant protein titin helps build muscles

...ation Facility (DESY). From the extremely detailed image of the connections between the proteins they discovered that telethonin links the tails in a unique way that may give some clues to sarcomere assembly. The Gautel lab used advanced microscope techniques to watch the molecules link to each other in l...

Lizard 'third eye' sheds light on evolution of color vision

...of pigment per cell - red, green, or blue. A color image results when light-triggered signals in the three different types of cone cells are compared by other nerve cells in the retina as well as the brain. The lizard's parietal eye photoreceptors contain two pigments per cell, blue and green. Having two...

Polymer aids in blood clotting, pointing way to new treatment

...ndipitous comparison prompted by an old scientific image and involving an ancient but understudied molecule may lead to a new treatment strategy for injuries or illnesses in which blood clotting is paramount to survival. In a paper to be published in the Proceedings of the National Academy of Sciences, re...

Key heart and Alzheimer's disease protein imaged for first time in native state

...or the first time have created a three-dimensional image of apolipoprotein E, a protein long associated with cardiovascular disease and more recently with Alzheimer's disease, as it appears when it is bound to fat-like substances known as lipids. Using the technique known as x-ray crystallography, scient...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...nd cells from certain kinds of viruses. Having an image of Dicer from Giardia intestinalis, Doudna noted, will help scientists better understand its role across biology."From an evolutionary standpoint, it is very interesting," said Doudna. "What is this enzyme used for in Giardia? We don't know. The Giar...

Molecule does more than slice and dice RNA

...nd cells from certain kinds of viruses. Having an image of Dicer from Giardia intestinalis, Doudna noted, will help scientists better understand its role across biology."From an evolutionary standpoint, it is very interesting," said Doudna. "What is this enzyme used for in Giardia? We don't know. The Giar...

Animal brains 'hard-wired' to recognize predator's foot movements, Queen's study suggests

...ing the dots didn't create a problem, but when the image was inverted, observers were unable to say if the animal was moving to the right or left. The researchers conclude that foot movement is an independent, important visual cue that another animal is nearby. "The observation that it is relatively easy...

Watching the brain switch off 'self'

...tionally they felt strongly or neutrally about the image or musical passage. During the tests, the researchers scanned the volunteers' brains using functional magnetic resonance imaging. In this widely used technique, harmless magnetic fields and radio waves are used to scan blood flow in brain regions, w...

How 'hot' emotional brain interferes with 'cool' processing

...eant nothing. The subjects were then showed a face image and asked to determine whether it was one of the original "to-be-memorized" faces or a new face. Throughout the tests, the subjects' brains were scanned using fMRI. This widely used technique involves using harmless magnetic fields and radio waves t...

How nerve cells stay in shape

... other, from a dendrite of the receiving cell (see image 1). Both parts comprise a special set of molecules...e cell only produced long, thin protuberances (see image 2), similar in shape to immature synapses. A more detailed analysis of the actin cytoskeleton offere...

Amazon rainforest greens up in the dry season

...ctures means the scientists have at least one good image of every spot for every month of the year. To be able to figure out when the Amazon rainforest is growing, Huete's lab used a new measure, called Enhanced Vegetation Index (EVI), for detecting greenness in MODIS images of very highly vegetated rainf...

In the mind's eye: How the brain makes a whole out of parts

...y fitting them together like a puzzle to create an image that the individual then "sees" and understands, researchers at The Johns Hopkins University report. A team from the university's Zanvyl Krieger Mind/Brain Institute describes the complex but speedy process in detail in a recent issue of the journal...

Cheaper and simpler keyhole surgery

...ordination, as the surgeon has to operate via a 2D image on a monitor. Moreover, the video camera has to be operated by an assistant and the work must be done using long and rigid instruments that provide little freedom of movement. The existing robot systems that have been developed to solve the aforement...

1 2 3 4 5 6 7 8 9