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Tag: "images" at biology news

Oops! Researchers publish new findings on the brain's response to costly mistakes

...y. The fMRI scanner uses magnetic fields to create images based on blood flow, and can detect tiny changes in the rate of blood flow in and out of various areas of the brain. The more blood flowing to a specific area, the more active the cells in that area are ?and therefore, the more processing that is goi...

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

... new insights arise from the first clear molecular images of the structure of Dicer, an enzyme that enables cells to dissect genetic material precisely. The finding, which is reported in the January 13, 2005, issue of the journal Science by an HHMI research team at the University of California, Berkeley, p...

Molecule does more than slice and dice RNA

... new insights arise from the first clear molecular images of the structure of Dicer, an enzyme that enables cells to dissect genetic material precisely. The finding, which is reported in the January 13, 2005, issue of the journal Science by an HHMI research team at the University of California, Berkeley, p...

Watching the brain switch off 'self'

... asked the subjects to use buttons to classify the images as animal/non-animal, or the musical passages as trumpet/non-trumpet. And to study introspection, the researchers asked the subjects to indicate whether emotionally they felt strongly or neutrally about the image or musical passage. During the tests...

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

...Their functional magnetic resonance imaging (fMRI) images of human volunteers exposed to emotional distracti...chers asked volunteer subjects to memorize sets of images of three human faces. Next, they exposed the subjects to one of three types of distracters -- emotio...

Amazon rainforest greens up in the dry season

... forest grows by analyzing five years of satellite images from the MODIS (Moderate Resolution Imaging Spectr...ture of each spot on the Earth. Each pixel in the images represents a square of about 820 feet (250 meters) on a side. If it's too cloudy at one spot one day...

Nanotechnology may find disease before it starts

...gests. It would do so by improving the quality of images produced by one of the most common diagnostic tool...ologically inert. The researchers took ultrasound images of the animals' livers every five minutes for 90 minutes after the injection. The nanoparticles had ...

'Executive' monkeys influenced by other executives, not subordinates

When high-ranking monkeys are shown images of other monkeys glancing one way or the other, th...n the experiments, Shepherd showed macaque monkeys images of monkeys known to be of higher or lower status than themselves. The images depicted the monkeys lo...

Fruit fly's beating heart helps identify human heart disease genes

...re is unable to pump blood efficiently. The moving images revealed that fly heart looked and acted just like...kness of the retina in the eye, to obtain detailed images of the beating heart of an adult, unanesthetized fly. "After inserting into the fly the gene that w...

Powerful new tool for studying brain development

...g, encyclopedic collection of tens of thousands of images as seen through a microscope. The images are obtained at distinct time points and show where and when specific genes are expressed at each of...

UW scientists unravel critical genetic puzzle for flu virus replication

...t enables scientists to generate three-dimensional images of microscopic organisms and structures, Kawaoka and his colleagues, in virtual fashion, dissected a virus and its infectious particles to assess how the virus assembles and organizes the strands of RNA that carry its genes so it can exit one cell an...

Infants can organise visual information at just four months

...as placed in a car seat facing a screen onto which images were projected. Overhead cameras recorded how long each infant looked at images on the screen. The infants were shown an array where the stimuli were arranged by similarity in eith...

Rare Tibetan antelope listed as endangered

...ossible use, the researchers produced real-time 3D images of a dog's right pulmonary veins -?sites that are targeted in treating atrial fibrillation. Similar 3D ultrasound devices also hold promise for minimally invasive abdominal and brain surgery applications, Smith said. Collaborators on the study incl...

3D ultrasound device poised to advance minimally invasive surgery

...ossible use, the researchers produced real-time 3D images of a dog's right pulmonary veins -?sites that are targeted in treating atrial fibrillation. Similar 3D ultrasound devices also hold promise for minimally invasive abdominal and brain surgery applications, Smith said. Collaborators on the study incl...

Picking particles faster than one at a time

... that can select tens of thousands of high-quality images of biological molecules from electron microgaphs, ... in random orientations. Capturing two-dimensional images of the molecule from many different angles allows powerful computers to recreate the structure in th...

Making medicine 'smarter'

...00 scans for a single patient, the sheer volume of images can be daunting for human eyes to evaluate. Meyer-Baese is developing computer software to mimic the way a radiologist analyzes all of that information -- and to do it better and faster. "The outcome of the proposed research is expected to have s...

Sahara's edge studied from ground, air and space to improve water management

...ESA's Envisat, ERS-2 and Proba satellites acquired images of these sites around the same time. The aim was to scale up the findings from the ground, and at the same time to use this 'ground truth' to calibrate satellite imagery with reality on the sandy arid ground ?as well as seeing what can be learnt abou...

Meditation associated with structural changes in brain

...controls. Using standard MRI to produce detailed images of the structure of participants' brains, the researchers found that regions involved in the mental activities that characterize Insight meditation were thicker in the meditators than in the controls, the first evidence that alterations in brain stru...

Image of myosin-actin interaction revealed in cover story of Molecular Cell

...red the first 3-dimensional (3D) atomic-resolution images of the motor protein myosin V as it "walks" along other proteins, revealing new structural insights that advance the current model of protein motility and muscle contraction. The culmination of four years of work, this collaboration among biochemist...

Health of coral reefs detected from orbit

...ution Imaging Spectrometer (MERIS). MERIS acquires images in 15 different spectral bands at 300 m resolution. "Coral bleaching needs to be mapped at the global scale," Dekker adds. "High-spatial resolution satellites can only do it on a few reefs due to cost and coverage constraints. We need a system that...

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