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Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

In three new independent studies, researchers have deepened our understanding of the remarkable ability of some specialized areas of the brain to activate both in response to one's own actions and in response to sensory cues (such as sight) of the same actions perpetrated by another individual. Thi...

Carbon nanoparticles toxic to adult fruit flies but benign to young

...uffocated them. In other adults, the nanoparticles covered the surface of their compound eyes, which may have blinded them. The nanoparticles "glom onto the flies," Rand noted while watching a video of flies in the test tubes. "They just can't move. It's like a dinosaur falling into a tar pit." (Note t...

Scary ancient spiders revealed in 3-D models, thanks to new imaging technique

...a defensive adaption by Eophrynus prestivicii , to make them a less tempting meal for the amphibians that would have recently emerged from the oceans onto land. The study's lead author, Mr Russell Garwood, PhD student from the Department of Earth Science and Engineering at Imperial College London, say...

August 2009 Geology and GSA Today media highlights

...ty Park, Pennsylvania 16802, USA. Pages 759-762. Avulsions are the natural process by which flow is diverted out of an established river course and onto the adjacent floodplain. Avulsions are significant natural hazards because they produce extensive flooding as water is diverted over the floodplain. I...

Antibody targeting of glioblastoma shows promise in preclinical tests, say Lombardi researchers

...cancers; there is no effective treatment. In the current online issue of the journal Oncogene, the researchers demonstrate how this antibody latches onto a receptor that studs the outside of glioblastoma cells, preventing a growth factor protein from binding to it and activating growth pathways in the t...

Leicester research paves way for first use in Europe of an insect to fight invasive plant

...e purpose of which is to be as sure as possible that potential biocontrol organisms are restricted to Japanese Knotweed and cannot be tempted to stray onto related British plants or economically important species. Lead scientist Dick Shaw said: "Using information compiled by scientists at the Universit...

Freshwater fish at the top of the food chain evolve more slowly

...actually have two dozen separately moving bones, and lots of muscles that move those bones in a coordinated fashion." By mapping these measurements onto the centrarchid family tree together with data on what each fish eats the researchers were able to reconstruct how diet and head shape have changed ...

Nanodiamonds deliver insulin for wound healing

...e release of the insulin." A substantial amount of insulin can be loaded onto the nanodiamonds, which have a high surface area. The nanodiamond-insulin c...s. The large surface area allows a large amount of therapeutic to be loaded onto the particles. They can be functionalized with nearly any type of therapeut...

Silicon with afterburners: Process developed at Rice could be boon to electronics manufacturer

...ar even in concentrations as small as one atom of boron, arsenic or phosphorus per 100 million of silicon. But as manufacturers pack more transistors onto integrated circuits by making the circuits ever smaller, doping gets problematic. "When silicon gets really small, down to the nanoscale, you get s...

Music is the engine of new U-M lab-on-a-chip device

...on-a-chip, or microfluidic device, integrates multiple laboratory functions onto one chip just millimeters or centimeters in size. The devices allow researc...'d really like to see something the size of an iPhone that you could sneeze onto and it would tell you if you have the flu. What hasn't been developed for s...

New windows opened on cell-to-cell interactions

...of the Royal Society of Chemistry, UO doctoral student Yupeng Kong and Parthasarathy applied biological material -- a thin layer of membrane lipids -- onto to tiny glass spheres about one-millionth of a meter in diameter to closely study colloidal interaction. Colloids are tiny particles found disperse...

Life on Earth came from other planets

...es and vacuum of an interstellar environment; the UV rays, cosmic rays, gamma rays, and ionizing radiation they would encounter; and the crash landing onto the surface of a planet. Obviously, they would not have evolved these capabilities if their entire ancestral and genetic history had been confined to ...

Reveal the enemy

...s aptamer for their biosensor. By means of additional functional groups, they securely anchored the aptamers to carbon nanotubes, which were deposited onto an electrode in an ultrathin layer. In the absence of salmonella, the aptamers fit closely against the walls of the carbon nanotubes. If the biose...

Building memories with actin

... occurs in two stages that are controlled by different pathways, a discovery that helps explain why it is easy to encode new memories but hard to hold onto them. If you can't seem to forget those ABBA lyrics you heard in seventh grade but can't remember Lincoln's Gettysburg address, the vagaries of LTP...

New way to make sensors that detect toxic chemicals

...the air settle on its surface. Beach applies a thin coating of the material onto microelectro-mechanical systems (made in a similar fashion to computer chip...t printer that places a droplet of a liquid suspension containing particles onto a surface -- in this case, the chips. According to Morris, this is the f...

Laboring without the labor bed: It's a good thing

...up in the corner of the ambient room. Fluorescent lighting was dimmed, and DVDs of ocean beaches, waterfalls and other soothing vistas were projected onto a wall. A wide variety of music was also made available. "The intent was to allow the women the ability to move about freely during their labour, t...

Can a new implant coating technique create a new six million dollar man?

...rials and Nanotechnologies Program have developed a way to electrochemically deposit synthetic hydroxyapatite. In place of plasma-spraying the coating onto the metal, the metal implant is placed into a bath of electrolyte solution and an electric current is applied. According to Prof. Eliaz, a good coa...

First riser-drilling research operations undertaken

...t in the surveyed area is about 1.0 knots, relatively slow for the current speed usually observed in the Kumano Basin. Yet, fairings are to be mounted onto to a riser pipe to smooth the hydrodynamic flow behind the riser pipe (to reduce riser drag) and suppress the vortex-induced vibration under high curr...

Structural biology scores with protein snapshot

...mallest known kinase (a protein that adds chemical groups called phosphates onto other molecules), and it is not similar to any other known proteins. The ...h amino acid in DAGK and used the data to map the active site of the enzyme onto the structure. They identified two sets of mutations that resulted in non-f...

Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost

...aper explains. "The CSI inspection process is geared exclusively towards US-bound containers, it begins 24 hours in advance of a container's lading onto an oceangoing vessel, and it uses information contained in the shipping manifests to decide whether or not specific containers require intensive non-i...

Molecular typesetting -- proofreading without a proofreader

...ta Cohen, Reader at the University of Leeds' School of Computing. To create a protein, the first step involves copying the relevant gene on our DNA onto a template, called RNA. This copying process is carried out by molecular machines called RNA polymerases. "The RNA polymerase acts like an old fas...

Nonstick and laser-safe gold aids laser trapping of biomolecules

...eriments has generally involved nonspecifically absorbing fragile molecules onto a sticky glass surface, producing random spacing and sometimes destroying biological activity. Its like dropping a car onto a road from 100 feet up and hoping it will land tires down. If the molecule...

Global sunscreen won't save corals

...uthor of the study with lead author Damon Matthews of Concordia University, Canada, and Carnegie geochemist Long Cao. Land plants and soils would hold onto more carbon in this scenario, so less would find its way into the oceans. "However this expansion of the land biosphere, while it's a slight help to ...

New method separates cancer cells from normal cells

...e researchers patterned cell-adhesive and cell-repellant chemical compounds onto a substrate. The cells stayed out of the repellant areas and localized onto the "ratchet" channels, which then directed the cells' movements. Grzy...

The downside of microtubule stability

...ce their strength, or both. One of these mutations leads to production of faulty dynamin 2, a protein that is crucial for endocytosis but also latches onto microtubules. Tanabe and Takei investigated how defective dynamin 2 hampers cells. Normal microtubules are continually extending and shrinking. But...

Flexible solar strips light up campus bus shelter

...e of the main features of the technology. The flexibility is achieved by tiling a large number of small silicon elements into an array, mounting them onto a flexible sheet, and connecting them through a proprietary method. The two solar strips installed on the McMaster bus shelter are about 90 centimete...

Urban myth disproved: Fingerprints do not improve grip friction

...esumed that fingerprints are there to help us hang onto objects that we grasp. This theory that fingerprin...ase friction between the skin and whatever we grab onto has been around for over 100 years, but no one had...ion in other ways. They might have evolved to grip onto rough surfaces, like tree bark; the ridges may all...

Zebra mussels hang on while quagga mussels take over

...few years, zebra mussels had colonized shallow water, beaches, and water intake pipes in layers up to eight inches thick. Although quagga mussels came onto the scene a few years later, they have recently become the dominant species in calm waters of the Great Lakes. These mussels have permanently chan...

Hidden genitalia in female water striders makes males 'sing'

...m males, protecting them against the males' forceful attempts to mate. In an apparent response to the female adaptation, after the violent mounting onto the female's back (typical in water striders), males of this species produce courtship signals by tapping the water surface with their middle legs. It...

Scholar unconvinced new lie-detection methods better than old ones

... "This 9/11 kind of hype has allowed and fueled this desire both in scientists and the media, and in popular culture, to try to find something to hold onto for security's sake. But I don't think it's really there" at least not yet, she said. For now, she added, a more accurate characterization of curr...

NIH funds work at WPI on regenerating heart tissue and preventing urinary tract infections

...ts in the heart to improve function in the damaged area. The new study aims to develop processes for maximizing the number of hMSCs that can be loaded onto the threads, and then to study the effect of the cells on cardiac function in a rat model. ...

Boston University biomedical engineers teach bacteria to count

... in Collins' lab and a co-author of the paper. "Consider computing what does one transistor do for you? Not that much, but if you pack a few thousand onto a chip, then you really have some power. These are fundamental biocomputing devices." ...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

...start again with the next trace. Each deflected light trace is then focused onto an array of camera pixels. The light level detected on the array thus prese...the light spectrum. This is accomplished by first encoding the X-ray signal onto an optical beam using an optical device (a Fabry-Perot cavity) that can be ...

American Chemical Society's Weekly PressPac -- May 20, 2009

... IMMEDIATE RELEASE New memory material may hold data for one billion years Nano Letters Packing more digital images, music, and other data onto silicon chips in USB drives and smart phones is like squeezing more strawberries into the same size supermarket carton. The denser you pack, the quick...

Preventing ear infections in the future: Delivering vaccine through the skin

... effective method to deliver a vaccine," says Novotny. The method, known as transcutaneous immunization, involved placing a droplet of each vaccine onto the ear and rubbing it into the skin. In this study, four groups of chinchillas were immunized with one of the three vaccine candidates. A fourth g...

Are you okay to kiss?

...he patent-pending invention is the result of ongoing research in Prof. Rosenberg's laboratory. "All a user has to do is dab a little bit of saliva onto a small window of the OkayToKiss kit," explains Prof. Rosenberg: "OkayToKiss will turn blue if a person has enzymes in the mouth produced by the Gram...

UCSD researchers make first direct observations of biological particles in high-altitude ice clouds

...t UCSD with funding from NSF. The ICE-L team mounted the mass spectrometer and an ice chamber run by Colorado State University researcher Paul DeMott onto a C-130 aircraft operated by NCAR and made a series of flights through a type of cloud known as a wave cloud. The researchers performed in-situ measur...

System that regulates blood pressure is amiss in some healthy, young blacks

...sterone system helps regulate blood pressure, prompting the kidneys to hold onto more salt and fluid if it's too low and to get rid of salt when it's high...to raise blood pressure to escape a tight spot was not to blame for holding onto sodium, the researchers measured heart rates but could find no relationship...

Synthetic chemical offers solution for crops facing drought

...chers have engineered new drought-resistant crops by tinkering with the ABA pathway. For years, scientists have contemplated spraying ABA directly onto crops to enhance their protection in times of stress. But ABA is a costly, complicated and light-sensitive molecule that has not found use in agricult...

New study overturns orthodoxy on how macrophages kill bacteria

...s, which neutralize an important ROS, called superoxide. Macrophages have harnessed these lethal compounds, dumping large quantities of superoxide onto engulfed bacteria to kill them. Although macrophages direct ROS against invading bacteria, Salmonella typhimurium , the microbe used in the study,...
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