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Tag: "images" at biology news

Fundamental discovery -- Bone fracture

...cluded with the article are the highest resolution images of bone ever published, which reveal the location of the adhesive or "glue" that holds together mineralized collagen fibrils (protein fibers) of bone. The glue appears to contain "springs" that uncoil when the bone is stressed, helping the bone to a...

Scientists focus on 'dwarf eye'

...e right distance from the lens for proper focus of images on the retina, a largely unknown mechanism that uses visual experience causes the eye to stop growing. Due to natural genetic mutations, some eyes continue to grow beyond this point, causing nearsightedness. Other mutations cause the eye to stop gro...

Microscopic brain imaging in the palm of your hand

...ve optical technique that can capture micron-scale images from deep in the brains of live subjects. The meth...e near the surface. Thus traditionally microscopic images of the living brain have only been made near the surface. Yet researchers would like to know more ab...

Researchers seek to discover what really happens when a virus enters the body

...ome fluorescent, allowing Bell and Duca to capture images of the laboratory dish at regular time intervals as the infection progresses. The images then provide Bell and Duca with information about innate immune responses to viruses. Using the NI...

New tool reveals secrets of migrating cells

...c Library of Science - Biology papers have tons of images and cool videos where you can see cells moving, be...chers using two-photon imaging to obtain real-time images of cells throughout the top half-millimeter of a living organ, not just on the surface of tissue or ...

Study shows humans have ability to track odors, much like bloodhounds

...was coming from, and functional magnetic resonance images of their brains showed that the brain is set up to pay attention to the difference between what the left and right nostrils sense, much the way it can localize sounds by contrasting input from the ears. "It has been very controversial whether humans...

Genetic links could unlock clues to leading cause of blindness

...ct. They're so similar, he said he sometimes slips images of rhesus monkey eyes into presentations for medical residents to see if anyone notices the difference. "I haven't been caught yet," he said. "Only the most expert would detect the differences." ...

Brain Scan Study of Smokers Reveals Signature of Craving

...s in brain activity in response to smoking-related images in areas associated with attention, motivation and...agnetic fields and radio waves are used to produce images depicting blood flow in brain regions. That blood flow reflects brain activity in those regions. As...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...arly findings amid several thousands specimens and images include suspected new species of jellyfish and benthic bristle worms, and the first squid and octopus ever found in the area. Scientists were also intrigued to discover among other things two species of sand flea-like crustaceans (amphipods) which, ...

A probe, not an echo

...nsmission Tomography" (HUTT) system that offers 3D images of soft tissue that are superior to those produced... engineering at the Viterbi School, presented HUTT images of animal organ tissue in San Diego at the 28th International Acoustical Imaging Symposium, held Mar...

Next Generation Body Scanner Launched By The University Of Manchester

...ore. The scanner will enable researchers to create images of structures in the body such as individual vessels in the brain, nerves and cartilage. Researchers working in the fields of cancer, stroke and mental illness will be among the first to benefit from the scanner. By studying patients, they will be...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

... To find out, the researchers analyzed a series of images from an orbiting NASA satellite called SeaWiFS, wh...Michael Beman carefully analyzed dozens of SeaWiFS images taken over the gulf from 1998 through 2002. The results were dramatic. "I looked at five years of s...

Duke engineers develop new 3-D cardiac imaging probe

... the heart to capture ultrasound heart images. The images can reveal the condition of the heart chambers, va...he drawbacks. We can generate sharp, high-contrast images of the whole heart and position heart catheters and ablation devices at the same time. We have alrea...

PET/CT can identify new cancer lesions at early stage, allowing for prompt treatment

...issues in the body. Combining PET with CT provides images showing function (PET) and anatomy (CT) and a merged or "fused" picture of the body's metabolism and structure. ...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...iated with pair-bonding in prairie voles. The fMRI images showed more activity in the ventral pallidum portion of the basal ganglia in people with longer romantic relationships. It's in this region where receptors for the hormone vasopressin are critical for vole pair-bonding, or attachment. "Humans have e...

No relief for Pacific Northwest drought

...o now, they are usually pretty accurate." Graphic images mapping the U.S. drought and fire risk conditions are available to illustrate this story, at the web site of OSU News and Communication Services, at http://oregonstate.edu/dept/ncs/photos/index.html ...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

...s to travel during daylight hours. Many times, the images we capture may only reveal a faint signal. Any sunlight that leaks in to the camera of a conventional fluorescence imager would obscure the signal," said Waggoner. "To avoid this problem, we designed our system to excite dyes with high intensity fla...

Liposome finding implies electrical effect on cell development

...uce a field up to one thousand times stronger). In images achieved through optical and scanning electron microscopy, microtubules were observed to immediately form and extend from the phospholipid balloon, like a seed putting forth a stalk or root. Hayes believes that the phenomena may have significant imp...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...puter techniques," Benveniste said. "The resulting images gave us the best of both worlds and allowed us to ...l colony to deliver their offspring. The combined images show that cocaine and/or its labeled metabolites readily cross the placenta. But the cocaine uptake ...

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

...ance imaging with spectroscopy to provide not only images of the anatomy, but also direct measurements of the concentrations of various important biochemicals and their chemical reaction rates within the cells of various tissues. They first performed MRS on 14 healthy volunteers to measure cardiac CK flux a...

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