Scientists figure out how cells' tiniest motors work
...eck wasvisualized by observing tiny gold particles chemically bonded to it. "Each technique has its own unique problems which could affect interpretation of the data," saysVale. "But when all of the techniques pointed to the same result, then we became convinced and ourunderstanding of the mechanism began to t...Cystic fibrosis splicing experiments offer hope for improved treatments
...he said. Antisense molecules are short segments of chemically altered RNA designed to stick tightly to themutated spot in the defective messenger RNA and nowhere else. "After we incubated the genetically engineered cells with the antisense, lo and behold the cellsbegan to synthesize significantly more normal ...Futurist research highlights chemists' national meeting March 26-30 in San Francisco
... Chemistry of Taste - how taste develops chemically in the mouth and makes one food favored over another; food chemists' use of the electronic nose and electronic tongue, new tools to advance the science oftaste. Toxic...Cinderella's shoe holds 500 sequencing machines
...the Human Genome Project. To makethe device, they chemically etched glass wafers with long, microscopically thinchannels no more than a hundredth of a centimeter wide and about twelvecentimeters long. Using short side channels, the researchers injected tiny"plugs" of DNA, labeled with fluorescent dyes, at one ...Microbial hydrocarbon 'cracking'
...ecial enzymes theinvolved microbes make use of the chemically very sluggish saturatedhydrocarbon, and in addition obtain sufficient energy for their life.Hydrocarbons in the absence of oxyen represent a low-energy diet for microbes. The investigation contributes to our understanding of slow yet globally releva...UD News: Gene-repair pioneer, Eric Kmiec, brings his lab to the University of Delaware
...he things together." The result, Kmiec says, was a chemically grafted or "chimeric" molecule composedof DNA and small amounts of RNA, which seeks out mismatched strands of DNA. Whena genetic blooper is identified, the chimeric molecule then triggers the cell'snatural repair system to replace the chemical bases ...UI study suggests genetics and gender affect human response to endotoxin
...ection or other microorganisms, endotoxin is known chemically aslipopolysaccharide. It is extremely prevalent in agricultural dust, such as thatfound in grain silos. In the recent study, 72 individuals, 26 men and 46 women, inhaled incrementallyincreasing amounts of endotoxin. After each dose, the researchers m......hers performing the work. Synthetic sludges, while chemically similar to radioactive ones, are notradioactive and can be handled without danger by lab workers attempting toquantify how much radioactive material sludges will store or release, and forhow long. Costs of decommissioning tanks, treating every materi...Particulate matter causing air pollution
...the production of ground-level ozoneand PM 2.5 are chemically related. Both are secondary pollutants, meaning theyare not directly emitted into the atmosphere, but are instead generated in theatmosphere by chemical reactions. "It's possible that controlling one pollutant without controlling theother mig...INEEL launches comprehensive vadose zone management program
...face ofthe ground and the aquifer that filters and chemically changes contaminantstrickling down through the earth. The U.S. Department of Energy's Idaho National Engineering and EnvironmentalLaboratory (INEEL) is leading the development of a comprehensive vadose zoneprogram that will foster technically grounde...New aspen could revolutionize pulp and paper industry
...y in half. Lignin, acomponent of all wood, must be chemically separated from cellulose to make thepulp used in paper production. The chemical, energy, and environmental costs ofremoving lignin have traditionally been enormous. The transgenic aspen saplings have other advantages to industry that came as acomplet...... it difficult forthe transcription factors to link chemically to the DNA. Luger's first task is to prepare relatively huge (20-thousandths of agram) amounts of nucleosomes and then form them into regular crystals byremoving water from the biological material. This crystalline structure can thenbe st...Multiple Chemical Sensitivity: A 1999 consensus
...citants are removed. Responses occur to multiple chemically unrelated substances. Symptoms involve multiple organ systems. The prior lack of any consensus definition has been a significant obstacleto the diagnosis of MCS in clinical practice. This definition is publishedwith the hope that it may standardiz......ductive, nervous and immune systems, as well as on chemically sensitive individuals, are not yet well understood. For example, some of the most frequently detected pesticides are suspected endocrine disrupters that have potential to affect reproduction or development of aquatic organisms or wildlife by interfe...Caterpillars foiled when tomato plants summon parasitic wasps
...mportantCalifornia agricultural crop that has been chemically well-characterized inprevious research. One of the... were twice as many parasitizedcaterpillars on the chemically treated plants as there were on the controlplants. To further pinpoint the cause, Thaler placed "sen...Male Moth's Sperm Protects Females
...f Neurobiology andBehavior) Not a pest : As a chemically laden insect most predators can't eat,it's a good thing Utetheisa ornatrix is not an agricultural nuisance. The rattlebox moth, also known as the ornate moth for its elaboratepink-white-black color scheme, dines exclusively on leaves of the rattleb...K-State Researchers Study Pest Resistance Management
...h of damage to crops. Farmers wereforced to either chemically spray the pests with insecticides or suffer thelosses. A current method for combating pests like these corn borer is togenetically engineer maize and other crops to produce a toxin inside the plantthat will kill them. The method is safe, with no har......o began smoking inadolescence had higher levels of chemically altered DNA in their lungs and bloodthan ex-smoker...entive implications," said Wiencke.The damaged, or chemically altered segments of DNA, known as DNA adducts, arephysical complexes in genes that are known to resu...New Cell Isolation Method Will Aid In Studying Tumor Development
...sly the use of LCM required biopsiedmaterial to be chemically fixed by formalin and embedded in paraffin or frozen.But the use of fixed and embedded samples to obtain high-quality material formolecular analysis was unsatisfactory. The use of frozen samples has its owndrawbacks of requiring more material and the...New Polyester Products Perform Better And Are Easy To Recycle
...allyfriendly," says Long. "You can take them apart chemically and recycle thestarting materials, which is something you cannot do easily with a currentpolyethylene milk jug, for instance." The talk, "Polyester Chemistry: From soft drink bottles to polymericliquid crystals," (Poly #285) will be Wednesday...