Some venom components have evolved to mimic chemicals made by the human body such as endothelin-1 which causes blood vessels to constrict during bacterial infections.
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#Illinois river otters exposed to chemicals banned decades agoresearchers report that river otters in Central Illinois are being exposed to polychlorinated biphenyls (PCBS)
More research is needed to understand the factors that contribute to the river otters'exposure to these chemicals Mateus-Pinilla said.
The sensors make use of microfluidic technology--developed by Abraham Stroock associate professor of chemical and biomolecular engineering--that places a tiny cavity inside the chip.
The paper appears this week in the American Chemical Society journal ACS Nano. Carbyne is a chain of carbon atoms held together by either double
In the future using this algorithm we could find chemicals that activate DEET receptors but are substantially different with far better properties than DEET.
Second studyin a separate study published Oct 1 in the journal e-Life Ray's group discusses a computational method developed by Boyle for screening thousands of chemicals
The invention of synthetic fertilizer where nitrogen is taken from an inert chemical form in the air and turned into ammonia has had a profound effect on nitrogen cycling.
Rhizobia eventually developed a chemical to inhibit the defense response in legumes and make those plants recognize it as a friend.
We're finding a chemical that is broadly utilized to behave in a way that is different from all our existing regulatory
Rout and colleagues first confirmed that the invaded soils of the prairie did indeed have higher levels of nitrogen phosphorous and iron-derived chemicals compared with the non-invaded prairie soils still dominated by native plants.
and waterways by agricultural chemicals as well as carbon costs because of vehicles and artificial fertiliser necessary to maintain the pasture.
and Policy Program a joint program of the Fielding School of Public health and the School of law shows that in at least one case the system failed by approving a chemical called methyl iodide for use on strawberries.
and fractionation difficult--the first step in extracting natural chemicals from wood to make products ranging from medicinal polymers to sugars that are the basis for bioenergy systems.
What they found could provide a blueprint for a material used for artificial ligaments a chemical-free way to protect crops from insects and a new insight on how human muscles function.
but farmers may soon have a chemical-free way to protect their plants from these voracious pests by turning their natural growth cycle against them.
and manufacturers because two materials can have the same chemical composition but very different mechanical properties depending on their grain size.
The farmer clones also carry bacteria that secrete chemicals to fend off amoebae that don't bother to do their own farming.
Producers of bamboo textiles maintain their products are processed antimicrobial without chemicals non-pollutant biodegradable and recyclable.
& Exposition of the American Chemical Society (ACS) held in Indianapolis this week. We found that advanced sewage treatment reduced the levels of pyrethroids by more than 97 percent said Kurt N. Ohlinger Ph d. who presented the results of the study.
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Some of the same brain regions and neurological chemicals that control human social behavior are involved probably in fish social behavior as well.'
#New cell component important to tea and wine-makingscientists have discovered where plants build tannins complex chemicals used by plants for defence and protection.
and ribosomes that are essential for protein synthesis. Each organelle also produces a range of chemicals for the cell.
and in more samples they examined spectra light signatures of chemicals. What they found was that these strange organelles were producing tannins.
Burlingame who is with Allylix Inc. a renewable-chemical firm in Lexington Ky. spoke at a symposium entitled Biopesticides:
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and Le Le's assets for substances that could do so during the 246th National Meeting & Exposition of the American Chemical Society (ACS).
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Speaking at the 246th National Meeting & Exposition of the American Chemical Society (ACS) Sara Risch Ph d. said that new packaging materials must meet the criteria for being sustainable without sacrificing the security freshness and visibility
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and not because of the risk of a nasty sting an expert on the health of those beneficial insects said in Indianapolis today at the 246th National Meeting & Exposition of the American Chemical Society (ACS).
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& Exposition of the American Chemical Society held recently in Indianapolis. Thomas Collins Ph d. who presented the research just a few hours from the home of some of the nation's best-known distilleries noted that his team's work profiling 60 American whiskeys has resulted in a treasure trove of information that could prove useful for whiskey-makers
But not all varieties of whiskey tested were identified easily through chemical profiling Collins noted. Though the ratios of grains used to make them differ significantly bourbons
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In a talk at the 246th National Meeting & Exposition of the American Chemical Society (ACS) scientists are describing identification of the genes responsible for pesticide-resistance in bedbugs
which includes 12 other research papers on topics ranging from pesticide resistance to monitoring chemicals in the environment to tick spit.
Zhu said the findings suggest that development of new pesticides should focus on chemicals that shut down or mute genes in the cuticle that thwart today's pesticides.
We need to combine as many chemical and non-chemical approaches as we have to get rid of the infestation.
She cited specifically integrated pest management for bedbugs approaches in which careful use of pesticides combines with other common-sense measures.
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and personal care products (PPCPS) in crops irrigated with recycled sewage water scientists reported in Indianapolis today at the 246th National Meeting & Exposition of the American Chemical Society (ACS).
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It was part of the 246th National Meeting & Exposition of the American Chemical Society (ACS.
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The reports on herbicide resistance and its challenges and how modern agriculture is coping were part of a symposium on the topic at the 246th National Meeting & Exposition of the American Chemical Society (ACS) the world's largest scientific society.
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Speakers at the 246th National Meeting & Exposition of the American Chemical Society recently described how natural colors used centuries ago are making a resurgence in response to consumer preferences manufacturers'needs
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ndez-Rivera former postdoctoral researcher Diana Yoon and Antonios Mikos the Louis Calder Professor of Bioengineering and Chemical and Biomolecular engineering all of Rice;
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or larviciding by adding chemicals or biological larvicides to standing water to kill larvae. Currently the use of long-lasting insecticide treated bed nets and indoor residual spraying of homes are used widely for malaria transmission control
In a process known as chemical weathering the acid eats away at limestone other carbonate rocks
Scientists have studied the effects of increased chemical weathering in small mountain streams tainted by acid runoff where the process can actually help rebalance streams'ph levels.
The researchers also found that the chemical weathering of these carbonate rocks adds to the carbon burden in rivers
and former mining sites thanks to an inexpensive non-chemical soil additive. The additive a simple mixture of organic waste such as chicken manure and zeolite a porous volcanic rock could be used to support agriculture in both the developed and developing world
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University of Michigan research team members said the principle also could be used to produce other valuable chemicals such as plastics.
Moreover by engineering the bacteria differently they believe their system could produce a variety of petroleum-based chemicals in a sustainable way.
An interdisciplinary approach can plausibly demonstrate connections between the effects of chemicals in humans and animals and the often indirect consequences on the population community and ecosystem levels.
#¢Switching from tobacco to e-cigarettes could help smokers avoid approximately 6000 chemicals some of which are human carcinogens.
Reduced exposure to harmful chemicals warrants research of these products as a smoking cessation vehicle says Cinciripini.
The researchers reported their results online this week in the American Chemical Society's Journal of Physical chemistry.
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The nanoconjugate exists as a single chemical unit and the tight bonds prevent the components from getting damaged
or CFCS a class of chemicals that destroy ozone in the stratosphere allowing more ultraviolet radiation to reach earth's surface.
Dutch scientist Guus Velders estimated in a 2007 study that had the chemicals not been phased out by 2010 they would have generated the warming equivalent of more than 220 billion tons of carbon dioxide.
The continued presence of a DDT byproduct reveals how long this banned chemical can impact biodiversity.
This is partly due to the physical chemical properties of the l compounds and biological influences such as such as organism specific metabolism and life history.
#Common agricultural chemicals shown to impair honey bees healthcommercial honey bees used to pollinate crops are exposed to a wide variety of agricultural chemicals including common fungicides
what agricultural chemicals were commingled with the pollen. The researchers fed the pesticide-laden pollen samples to healthy bees
On average the pollen samples contained 9 different agricultural chemicals including fungicides insecticides herbicides and miticides.
Sublethal levels of multiple agricultural chemicals were present in every sample with one sample containing 21 different pesticides.
In the study's most surprising result bees that were fed the collected pollen samples containing chlorothonatil were nearly three times more likely to be infected by Nosema than bees that were exposed not to these chemicals said Jeff Pettis research leader of the USDA's Bee Research
The chemicals compromise bees'immune systems but the damage is less than it would be if mites were left unchecked.
and using less chemicals in the process so as to reduce negative impact on the environment. Tomato peel:
and inorganic chemicals dyes and pesticides and they can also be used in large scale applications. The results were published in the Royal Society of Chemistry journal RSC Advances in September 2012.
The findings are published in the American Chemical Society journal ASC Applied materials & Interfaces in May 2013.
which tend also to be plant defense chemicals Olsen says but it is weed basically a.
The levels of these chemicals was altered by infection with either the endo -or ectoparasite nevertheless infected bees were treated as normal by other bees--social interactions including antennal contact grooming feeding
The research is available online from the American Chemical Society's journal ACS Nano. Detecting polarized light is said extremely useful Rice's Junichiro Kono professor of electrical
In the ACS Nano study lead author He used chemicals called dopants to alter the electrical properties of the nanotube carpets.
Lundgren and Duan suggest that researchers investigating the potential of interference RNA pesticides create types that are designed to be unlikely to affect non-target species. They also suggest a research program to evaluate how the chemicals move in real-life situations.
and Matteo Pasquali a professor of chemical and biomolecular engineering and of chemistry. Tour is the T. T. and W. F. Chao Chair in Chemistry as well as a professor of mechanical engineering and materials science and of computer science at Rice.
the chemical is derived from an African chrysanthemumand acts by blocking chemical signals at nerve junctions in insects.
Coverage required only about three-quarters of an ounce or less of the chemical per acre.
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Kong's team isolated three chemicals from crabgrass that affect the microbial communities in nearby soil
The chemical-specific changes in the soil microbial community generated a negative feedback on crop growth the scientists said noting that the chemicals also would have a direct toxic effect on other plants.
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In a 2012 study Seufferheld Spencer and their colleagues reported that rotation-resistant rootworm beetles were better able than their nonresistant counterparts to tolerate the defensive chemicals produced in soybeans leaves.
That study found that Arabidopsis thaliana--a widely used model organism for plant studies--begins ramping up production of insect-fighting chemicals a few hours before sunrise the time that hungry insects begin to feed.
when they would be accumulating the anti-insect chemicals but I knew that some of those chemicals were known to be valuable metabolites for human health so
I decided to try and find out whether vegetables cycle those compounds based on circadian rhythms. Arabidopsis and cabbage are related
which have the extraordinary ability to feed on some poisonous plants the chemicals contained in which would definitely kill other insects.
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To be able to assess the ecological impact of such chemical substances properly existing concepts need to be validated by investigations in real environments as soon as possible.
#Prenatal exposure to BPA affects fat tissues in sheepnew research suggests that fetal exposure to the common environmental chemical bisphenol A
The research appeared this week in the American Chemical Society journal ACS Nano. Better batteries are desired greatly by everyone who carries a cellphone or computer or drives an electric car.
Other instruments analyze air samples from outside the plane for the same chemicals. Aircraft navigation data and basic weather data are collected also.
Some chemicals were associated also with fewer changes in fetal heart rate which normally parallel fetal movements.
According to the findings all participants had detectable concentrations of at least one-quarter of the analyzed chemicals
These chemicals included hexachlorobenzene DDT and several PCB congeners. Women of higher socioeconomic status in the study had a greater concentration of chemicals compared to the women of lower socioeconomic statusthere is tremendous interest in how the prenatal period sets the stage for later child development.
These results show that the developing fetus is susceptible to environmental exposures and that we can detect this by measuring fetal neurobehavior.
Ajayan is the Benjamin M. and Mary Greenwood Anderson Professor in Engineering and a professor of mechanical engineering and materials science chemistry and chemical and biomolecular engineering.
Combined Archaeological Chemical and Archaeobotanical Evidence Corroborate Discoveryat the site of Lattara merchant quarters inside a walled settlement circa 525-475 BCE held numerous Etruscan
After sample extraction ancient organic compounds were identified by a combination of state-of-the-art chemical techniques including infrared spectrometry gas chromatography-mass spectrometry solid phase microextraction ultrahigh-performance liquid chromatography
and the University of California at Davis. The study published online in the American Chemical Society journal Environmental science
which has the same chemical composition but a different structure. The resulting changes in the volatile profile alerts Geocoris bugs to the presence of M. sexta caterpillars on the plant their potential prey.
In studying the processing techniques used to create their samples for testing they found that the chemical most commonly used to remove the copper substrate also causes damage to the graphene severely degrading its strength.
and soft wood) with ultrasound consistently enhances the chemical reactions necessary to convert the biomass into high-value fuels and chemicals.
Commonly enzymes or chemicals are used to remove it from biomass and allow the freed sugars to be dissolved for further processing into biofuel.
The discovery is detailed online in the American Chemical Society journal Nano Letters. While commercial silicon-based solar cells turn about 20 percent of sunlight into electricity and experimental units top 25 percent there's been an undercurrent of research into polymer-based cells that could greatly reduce the cost
Verduzco is an assistant professor of chemical and biomolecular engineering. The National Science Foundation the Department of energy the Welch Foundation the Shell Center for Sustainability and the Louis and Peaches Owen Family Foundation supported the research.
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The UCLA researchers are seeking to pinpoint particular chemicals produced by gut bacteria that may be triggering the signals to the brain.
To test their ideas the Honda team grew various types of graphene on copper foil by standard chemical vapor deposition.
However our study suggests that the risk increases in a dose response manner as the length of exposure to these chemicals increases.
The survival of organic material is really dependent on the particular chemical properties of the soil
Similar to the many studies that indicate tobacco use might reduce risk of Parkinson's our findings also suggest a protective effect from nicotine or perhaps a similar but less toxic chemical in peppers and tobacco.
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if it was all down to just these chemicals says Christopher Connolly a neuroscientist at the University of Dundee UK.
He argues that we should not allow farmers spray a toxic soup of chemicals onto their crops.
beneficial insects such as ladybirds and bees are exposed to lots of different chemicals and we have a really poor understanding of
but similar-acting chemicals said Aaron Stoler a coauthor of the second paper and a graduate student in Relyea's lab. In the future Relyea and his team plan to study the genetic mechanisms that underlie increased resistance in amphibians
Research had shown previously that eating honey turns on detoxification genes that metabolize the chemicals in honey
The U s. park service actively suppressed forest fires until they realized that the practice left the soil of mature forests lacking important minerals and chemicals.
and charred ground In previous studies scientists had discovered that special chemicals known as karrikins are created as trees
Pulickel Ajayan the Benjamin M. and Mary Greenwood Anderson Professor in Engineering and a professor of mechanical engineering and materials science chemistry and chemical and biomolecular engineering;
and Walter Chapman the William W. Akers Professor of Chemical and Biomolecular engineering all of Rice; and Prabir Patra an assistant professor of mechanical engineering at the University of Bridgeport with a research appointment at Rice.
Verduzco is an assistant professor of chemical and biomolecular engineering. The research was supported by an IBB Hamill Innovations Grant the Robert A. Welch Foundation the National Science Foundation and the National institutes of health through the National Institute of Allergy and Infectious diseases.
In a new study at UC San francisco researchers measuring chemicals in the blood and urine concluded that hookah smoke contains a different--but still harmful--mix of toxins.
This team dubbed Algafuture is composed of undergraduates and graduate students from the departments of Geography and Environmental Engineering and Chemical and Biomolecular engineering.
Their faculty advisers are Edward Bouwer professor and chair of the Department of Geography and Environmental Engineering and Michael Betenbaugh professor in the Department of Chemical and Biomolecular engineering.
In the body the nitrate is converted to a chemical called nitrite and then to nitric oxide in the blood.
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The talks at the 245th National Meeting & Exposition of the American Chemical Society focused on
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That was the word today from an overview of the chemistry of hangovers presented as part of the 245th National Meeting & Exposition of the American Chemical Society the world's largest scientific society.
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& Exposition of the American Chemical Society (ACS) the world's largest scientific society being held here this week.
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& Exposition of the American Chemical Society the world s largest scientific society Nancy N. Rabalais Ph d. emphasized that oil spills like the 2010 Deepwater Horizon disaster claim a terrible toll.
The American Chemical Society is a nonprofit organization chartered by the U s. Congress. With more than 163000 members ACS is the world s largest scientific society
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either crystalline or amorphous but these categories were probably more reflec tive of the limitations of imaging methods than the underlying structural organization of the cellulose says Jerome Fox lead author of the Nature Chemical Biology paper
#Microalgae produce more oil faster for energy, food or productsscientists have described technology that accelerates microalgae's ability to produce many different types of renewable oils for fuels chemicals foods
The presentation was part of the 245th National Meeting & Exposition of the American Chemical Society (ACS) on April 7.
This breakthrough allows us to create oils optimized for everything from high-performance jet and diesel fuel to renewable chemicals to skin-care products and heart-healthy food oils.
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--and the challenges of feeding a global population of 9 billion in a keynote talk at the 245th National Meeting & Exposition of the American Chemical Society the world's largest scientific society.
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& Exposition of the American Chemical Society (ACS) the world's largest scientific society being held here this week.
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--so long as he can find a manufacturer for the drug. 1 Neurotransmitters are chemicals that transmit signals from neurons (nerve cells) to target cells. 2 Funding:
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Hirasaki Rice's A j. Hartsook Professor of Chemical and Biomolecular engineering said employing waste heat is just one example of a number of ways that Rice's team is looking to improve upon a tried-and-true technology for CO2 capture.
Study co-authors include Michael Wong professor of chemical and biomolecular engineering and of chemistry and Ken Cox professor in the practice of chemical and biomolecular engineering.
Calculations by the Rice team of theoretical physicist Boris Yakobson and his colleagues in China were reported this month in the American Chemical Society journal Nano Letters.
For the study published online February 8 in Food and Chemical Toxicology Kern and his team sought advice from scientists at the U s. Department of agriculture about food products and flavorings.
To do this study well we had to think like food chemists to extract chemicals from food
so Kern's team analyzed p53 activity triggered by the chemicals found in liquid smoke.
Postdoctoral fellow Zulfiquer Hossain tracked down the chemicals responsible for the p53 activity. The strongest p53 activity was found in two chemicals:
pyrogallol and gallic acid. Pyrogallol commonly found in smoked foods is also found in cigarette smoke hair dye tea coffee bread crust roasted malt
and gallic acid but there could be ways to remove the two chemicals from foods and flavorings.
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