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How plants fine tune their natural chemical defenses

LA JOLLA, CA Even closely related plants produce their own natural chemical cocktails, each set uniquely adapted to the individual plant's specific habitat. Comparing anti-fungals produced by tobacco and henbane, researchers at the Salk Institute for Biological Studies discovered that only a few ...

Worldwide atmospheric measurements will determine the role of atmospheric fine particles

The Finnish Meteorological Institute in Helsinki, Finland, will host the first annual meeting of the European Integrated Project on Aerosol Cloud Climate and Air Quality Interactions, EUCAARI, headed by Academy Professor Markku Kulmala, on 1922 November 2007. The purpose of EUCAARI is to significa...

Whole genome fine map of rice completed

After the completion of a draft sequence of the Chinese hybrid rice genome, which was published in the Journal Science in 2002, CAS researchers have recently finished the fine map of the rice genome. In an article published by the recent issue of PLoS Biology (Vol.3 Issue 2, 2005), scientists led b...

Carbon nanoparticles toxic to adult fruit flies but benign to young

... compounds that were not toxic to the (fruit fly) larvae were toxic to the adults in some cases, so there may be analogies to other toxic effects from fine particles," Rand, a co-corresponding author, said. "It may be like being in a coal mine. You get sick more from the effects of dust particles than fro...

'Green' energy from algae

...ve to be cooled. Other advantages of the closed system are drastic savings of water and fertilizers. Double use of algae for the production of food or fine chemicals and subsequent energy production from the residualbiomass may also be conceivable. Posten's institute hosts one of the two KIT working gr...

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

...senting 29 species of centrarchid fishes. Using a chemical process to stain and visualize the bones, muscles, and connective tissue, they measured the fine parts of the head and mouth. "A fish mouth is much more complicated than our own mouth," says Wainwright. "Whereas we have one bone that moves our ja...

Scientists track impact of DNA damage in the developing brain

...or DNA damage and are a likely source of neurological problems in humans. The cerebellum coordinates movement and balance. The cerebellar interneurons fine tune motor control. "These data will be important for understanding the role the DNA damage response plays in preventing neurological disease," the...

Two dietary oils, two sets of benefits for older women with diabetes

...to manage their health. But most will probably be on oral medications for the rest of their lives for managing their diabetes and metabolism, which is fine as long as the medications work. We think there's a chance that nutrition can complement medication and help drugs work even better." ...

High carbon dioxide levels cause abnormally large fish ear bones

...otoliths have a functional effect on the survival and the behavior of the fish. "Number three is the big one," said Checkley. "If fish can do just fine or better with larger otoliths then there's no great concern. But fish have evolved to have their bodies the way they are. The assumption is that if y...

American Chemical Society's Weekly Presspac -- June 17, 2009

...tricate, beautifully sculpted shells that resemble fine lacework. Their report appears online in the curre...st-reads from C&EN: Greener processes help pharma, fine chemical firms Developing greener processes not ... is providing many benefits for pharmaceutical and fine chemicals manufacturers. One key reason: process c...

Athletes, spectators faced unprecedented air pollution at 2008 Olympic Games

... Atmospheric particulate matter, researchers say, is a concern because various sized particles have potentially toxic chemicals "sorbed" to them. The fine particles have been linked to increased respiratory morbidity and mortality. In China, particulate matter air pollution is believed to be responsible ...

New piece found in the puzzle of epigenetics

...e in the puzzle of epigenetics: They showed that the enzyme TFIIH kinase is involved in epigenetic regulation. The scientists were interested in the fine regulation of the cell nucleus enzyme RNA polymerase II. This transcribes the genetic information of the genetic substance DNA into messenger RNA - mR...

Aussie and Kiwi researchers make double MS genetic discovery

... coordinated the GWAS says these genetic discoveries are a major advance for the field. "We expect that within one to two years we will be able to fine map these new regions and identify the genetic changes that underpin these findings," says Dr Rubio. "Our next steps include studying how changes ...

University of Houston Site of Regional Center of Excellence

...ill support the Council's regional efforts with a permanent meeting and training facility. The UH College of Technology will gain recognition for its fine logistics and supply chain education through this partnership. The supply chain for manufacturing and delivering goods is the backbone of every aspec...

The coming of biofuels: Study shows reducing gasoline emissions will benefit human health

... at county-level resolution included direct particulate matter and indirect fine particles (2.5 micrometers in diameter or smaller) produced from emissions ... about 5,000 to 20,000 DALY, with most of the damage resulting from primary fine particle emissions," said McKone. "While county-specific damages range over...

A research work will be the reference to characterize the climatic impact of desert dust

...n be an atmospheric warming or cooling", says Guerrero Rascado. Use and fine tuning of the LIDAR technique According to Professor Alados, "the impleme...ich has required a four-year effort, was organized in three main lines: the fine tuning of the equipment; the development of algorithms for profile inversio...

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

...cted to be launched around 2012 and would have a ground resolution twice as fine as GeoEye-1. These powerful public eyes in the sky have already had an ...t can be displayed; the other important feature is the time resolution: how fine a time scale can be achieved. Conventional analog television displays use c...

Study finds genetic links to age of first menstrual period and menopause

...total of 17,438 women from the Nurses' Health Study (NHS) and the Women's Genome Health Study (WGHS) based at BWH. "At these newly identified loci, fine mapping or sequencing might lead to identification of the causal variants, and thus expand our knowledge of the underlying physiology and biological r...

Progress toward artificial tissue?

...id, networking them to form a gel. This gel can be spun: just as silk and synthetic fibers can be wet-spun for textiles, the gel can be made into very fine threads when injected into a special bath. The dried fibers have a porous, sponge-like structure and consist of a network of intertwined 50 nm-wide na...

Lyncean Technologies Inc. receives $1.2 M from NCRR to develop new imaging technique

...ree images can distinguish subtle variations in soft tissue at an extremely fine scale. When complete, the CHRIS development aims towards a product which...and other clinical radiological applications which require the detection of fine structure within soft tissue. ...

From cars to cancer: UH professor employs auto industry tools for tumor therapy

...mal cells," Dong said. "It's very easy to kill cancer by radiation, but not harming normal organs at the same time can be tricky. So, it's a delicate, fine balance." Kamrani hopes that, based upon initial CT scan readings, the team will be able to classify tumors and predict through radiation models t...

Searching for pollution in the Caribbean

...samples at different other sites along the Honduran coasts, and those, too, would need to be prepared for the laboratories. But for now, a round of fine Honduran beer, maybe Salva Vida, to toast a good day's work was probably in order. All things considered, the work they all just did today under th...

New technology shows promise against resistant staph infections

...developing a method of generating NO from sodium nitrite within a novel nanoparticle formulation. The nanoparticles are stable when dry and resemble a fine white powder when present in large amounts. "As the particles take on water, they loosen up and the nitric oxide slowly trickles out, releasing spe...

Olympus advances technology for laparo-endoscopic single-site surgery

...ndoEYE, which uses digital-chip technology to place the camera on the tip of the scope, and which delivers high-quality images enabling doctors to see fine details during surgical procedures. Olympus' EndoEYE has a streamlined configuration, eliminating the light post and intrusive second cable. Incorpor...

Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive

...crease in air pollution is associated with an increase in heart attacks and deaths. These pollutants, including tobacco and cooking oil smoke, contain fine particles that evoke responses from heart and blood vessels indicating effects on their function. This study briefly exposed people to low levels ...

Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive

...crease in air pollution is associated with an increase in heart attacks and deaths. These pollutants, including tobacco and cooking oil smoke, contain fine particles that evoke responses from heart and blood vessels indicating effects on their function. This study briefly exposed people to low levels ...

Fluorescent cancer cells to guide brain surgeons

...f the brain. Gliomas are often resistant to chemotherapy. These tumors grow fine extensions that infiltrate normal brain tissue and, in addition, individual... in the brain tumor. Laser light causes the substance to glow and makes the fine extensions of the tumor visible. "Other contrast agents often fade," sa...

The secret to chimp strength

...chimps because our nervous systems exert more control over our muscles. Our fine motor control prevents great feats of strength, but allows us to perform de... In other words, chimps make lousy guests in china shops. In addition to fine motor control, Walker suspects that humans also may have a neural limit to ...

Stem cells replace stroke-damaged tissue in rats

...ready-made support structure. Dr Modo continued: "This works really well because the stem cell-loaded PLGA particles can be injected through a very fine needle and then adopt the precise shape of the cavity. In this process the cells fill the cavity and can make connections with other cells, which hel...

Unfolding 'nature's origami'

...le in the growth, repair and workings of cells. Sheena Radford, Professor of Structural Molecular Biology at the University of Leeds, says: "There's a fine balance between a protein folding into the correct shape so that it can carry out its job efficiently and it folding incorrectly, which can lead to di...

Study finds hemlock trees dying rapidly, affecting forest carbon cycle

...mponents of the forest carbon cycle including tree growth, leaf litter and fine root biomass, and soil respiration over the 3-year period. "While we ex...ees in the Northeast." The study showed, among other things, that very fine roots in the girdled and hemlock woolly adelgid-infested plots declined by ...

Crab claws pack strengthening bromide-rich biomaterial

...claw tipped with this newly discovered biomaterial for finer work." The claws of the Dungeness crab, he noted, are designed for crushing instead of fine manipulations, and are not tipped with this material. But their legs are, he said. "The next time you are eating a Dungeness crab, notice that the ...

NASA-funded carbon dioxide map of US released on Google Earth

...l carbon dioxide emissions data that was previously available from disparate sources and in different formats into one comprehensive data product. The fine level of detail offers more accuracy for estimating the fossil fuel contribution to the global carbon budget, the balance of carbon absorbed by Earth ...

Indoor air pollution increases asthma symptoms

... may be composed of different chemical components. fine particles measure 2.5 microns or less in size (app...rotection Agency (EPA) regulates outdoor levels of fine particle pollution, but does not have a standard f...sociated both with higher indoor concentrations of fine particles and with higher indoor concentrations of...

Link between unexploded munitions in oceans and cancer-causing toxins determined

... them safely to a lift basket for surface disposal or deep sea burial. It is operated remotely with proportional toggle switches that allow much more fine control of the delicate undersea operation than an on/off button. The system relies on an underwater hydraulic system designed James Barton, presiden...

When fish farms are built along the coast, where does the waste go?

...s, even though the substances and situations are different from fish farms. (Sewage outflow, for example, is often warmer than the ocean water.) The fine details of modeling the flow of dissolved fish poop from a submerged cage are not as simple as they may seem. The design of the cage itself can affect...

Texas researchers provide emissions data for livestock industry

...s gaseous form," Auvermann said. "Unless it reacts with other gases to form fine particles, it's gone from the air within a few hours to a few days. And we don't see much of the fine particles around here that would suggest otherwise." Casey and Parker ag...

Tree lizard’s quick release escape system makes jumpers turn somersaults

...results on 13th February 2009 in The Journal of Experimental Biology at http://jeb.biologists.org/ . Constructing a jumping arena from boxes and fine sandpaper, the duo gently encouraged arboreal Anolis carolinensis (anole) lizards to launch themselves from a 11cm high platform as they filmed the an...

Decreasing insulin resistance prevents obesity-related cardiovascular damage

...rd diabetes, the body begins to miscalculate insulin needs and overproduce; fine control is lost and the high and low insulin swings begin. "If you are o...e Studies. "What this gene is telling us is, if you can just improve the fine control, the fact that your fasting glucose is a little off, despite the fa...

How your body clock avoids hitting the snooze button

...s governed by three factors, called Cryptochrome, Jetlag and Timeless. The team's findings suggest that the light responses of circadian clocks are fine tuned on a molecular, by small differences in the binding affinities of clock proteins. Professor Stanewsky explains: "A circadian photoreceptor ca...
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