Dirk HÃ lscher from the Max Planck Institute for Chemical Ecology in Jena Germany and an international team of researchers have discovered that some banana varieties accumulate specific plant toxins in the immediate vicinity
Scientists at the Max Planck Institute for Chemical Ecology and their colleagues from universities in Leuven (Belgium) Jena Kassel-Witzenhausen Halle Bonn and Bremen as well as the Leibniz Institute for Natural Product
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what chemical structures they have hidden could not yet been evaluated. By applying the so-called 13c-method Kästner
senior research scientist Rolf Arvidson and Andreas LÃ ttge a research professor of Earth science and chemistry all of Rice.
They serve as sensors for chemical signals and fulfill their tasks by changing their configurations to trap chemical compounds Morcos said.
Using behavioural assays researchers at the Max Planck Institute for Chemical Ecology in Jena Germany
Although a number of cultural biological and chemical control methods have been suggested for billbugs in turfgrass
They also have an abundance of genes for communication between cells via signaling proteins including small secreted effectors highly expressed during symbiosis. Plant roots send out a plethora of chemical signals
and placed in hives 90 days before bloom begins The most part of the honey produced in Mexico is exported mostly to Europe where health standards are very high mainly concerning chemical residues.
Magnetic pollen replicas offer multimodal adhesionresearchers have created magnetic replicas of sunflower pollen grains using a wet chemical layer-by-layer process that applies highly conformal iron oxide coatings.
and a nonnatural oxide chemistry this work provides a unique demonstration of tunable bio-enabled multimodal adhesion.
--while the oxide chemistry provides an adhesion mode that operates over much longer distances--up to one millimeter.
and has been accepted for publication in the journal Chemistry of Materials. A just-accepted version of the manuscript has appeared online.
Now that we know how to generate such particle replicas there is certainly more chemical tailoring that we can explore for adhesion said Sandhage who also holds an adjunct position in Georgia Tech's School of Chemistry and Biochemistry.
Through the proper combination of pollen shape synthetic chemistry and thermal treatments we can significantly expand the range of properties of these pollen replicas.
In an intracranial electroencephalogram (EEG) study each time a targeted neuron is active it fires an action potential--a chemical and electrical change that can be recorded for later analysis. Like never before the researchers can witness in human subjects
Now in research published in The Journal of Biological Chemistry the researchers present the first characterization of
not only measure the chemistry of rocks elemental abundances of soils and wind speeds but also take an incredible number of images from both mast-mounted cameras
which visual and chemical cues would combine to attract high numbers of beetles. Trap trees are used to concentrate
Because the trees differ in their chemistry relating to beetle attraction and colonization differences in beetle responses are to be expected he added.
Beetle attacks also induce a release of a volatile tree chemical 3-carene. Field tests conducted by Erbilgin
The results have been published in the'Food Chemistry'magazine and they show the presence of at least 40 types of polyphenols.
We usually think of animals'chemical signals (called pheromones) as communication systems that convey only very simple sorts of information said Christina Grozinger professor of entomology and director of the Center for Pollinator Research Penn State.
and analyzed their chemical compositions using gas chromatography-mass spectrometry. Finally the researchers presented the gland extracts to worker bees
She then treated them in a variety of chemical baths mounted them between large glass slides
and lead to new treatments said Judith Gasson a professor of medicine and biological chemistry director of UCLA's Jonsson Comprehensive Cancer Center and senior associate dean for research at the Geffen
and is an alternative to chemical control says Klingen. The death that awaits ticks exposed to this fungus is inhumane;
which suggests a similar heart-friendly role for the tearless onions as well as a possible role in managing weight gain in ACS'Journal of Agricultural and Food Chemistry.
Colin C. Eady and colleagues note that the onion has a unique chemistry that leads to its tear-inducing effects when cut.
T. reesei chews through materials naturally cutting through the chemical wrapping much like a person with scissors cuts through a tightly wrapped ribbon around a gift freeing the inner contents for enjoyment.
The key to the work is a chemical probe the team created to monitor the activity of many enzymes at once.
The heart of the system known as activity-based protein profiling is a chemical probe that binds to glycoside hydrolases
while others fell--in ACS'Journal of Agricultural and Food Chemistry. Ana Rodriguez-Mateos and colleagues note that eating blueberries is associated with several health perks including improved thinking reduced risk for heart disease and reduced inflammation.
and the fertilizer value of potassium chloridein the chemical age of agriculture that began in the 1960s potassium chloride (KCL) the common salt often referred to as potash is used widely as a major fertilizer in the Corn belt without regard to the huge soil reserves that were recognized once for their fundamental
Reptile and arthropod venoms are complex chemical cocktails. Some venom components have evolved to mimic chemicals made by the human body such as endothelin-1
which could help scientists build an even better more healthful broccoli in ACS'Journal of Agricultural & Food Chemistry.
and in Hungary Slovenia and India reported their results this week in the online edition of the American Chemistry Society journal ACS Nano.
Akos Kukovecz an associate professor of chemistry and ZÃ ltan KÃ nya head of the Department of Applied and Environmental Chemistry both at the University of Szeged Hungary;
and Pulickel Ajayan the Benjamin M. and Mary Greenwood Anderson Professor in Mechanical engineering and Materials Science and of chemistry at Rice.
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.
or above a critical threshold for ecological damage according to a study published in the journal Atmospheric Chemistry
The environmental scientists experts in air quality atmospheric chemistry and ecology have been studying the fate of nitrogen-based compounds that are blown into natural areas from power plants automobile exhaust and--increasingly--industrial agriculture.
The vast majority 85 percent of nitrogen deposition originates with human activities explains principal investigator Daniel J. Jacob Vasco Mccoy Family Professor of Atmospheric Chemistry and Environmental Engineering at the Harvard
and has become an international standard for modeling atmospheric chemistry over time. Actual levels of future nitrogen deposition will depend on a complex interplay of economic legal and environmental factors.
and how thin a rod you could make from a given chemical Yakobson said. We had a paper 10 years ago about silicon in
Yakobson is Rice's Karl F. Hasselmann Professor of Mechanical engineering and Materials Science a professor of chemistry and a member of the Richard E. Smalley Institute for Nanoscale Science and Technology.
and further develop these nutritive-rich ingredients is being sought from the recently established (2010) Global Institute for Food security (GIFS) says co-author of the study Dr. Nicholas Low a Professor of Food Chemistry at the Department of Food and Bioproduct Sciences University
The researchers made small sheets of h-BN via chemical vapor deposition (CVD) a process they said should be scalable for industrial production.
Ajayan is the Benjamin M. and Mary Greenwood Anderson Professor in Mechanical engineering and Materials Science and of chemistry at Rice.
and silos was the use of chemical substances such as aluminum phosphide and methyl bromide which were effective but left toxic residue for human consumption.
Study results appear in the Oct. 2013 issue of the journal Environmental Toxicology and Chemistry.
Using novel chemical informatics strategies Ray's lab screened half a million compounds against the DEET receptor to identify substitutes.
Scientists have used recently the Canadian Light source (CLS) to evaluate the effects of various sources of supplemental nitrogen fertilizer on the chemical composition of soil organic matter.
Gillespie and his colleagues from AAFC the University of Saskatchewan St francis Xavier University Lakehead University and the CLS tested the hypothesis that the chemical composition of SOM would be different
#Biochar quiets microbes, including some plant pathogensin the first study of its kind Rice university scientists have used synthetic biology to study how a popular soil amendment called biochar can interfere with the chemical signals that some microbes
and Technology is the first to examine how biochar affects the chemical signaling that's routinely used by soil microorganisms that interact with plants.
One strain spoke with a type of chemical communication commonly used by soil microbes and the other listened.
when exposed to the chemical signal from the rhizobia bacteria. They found that the plants did receive the signal and like legumes inhibited the normal plant immune system.
In lab tests followed by field experiments the researchers found that trenbolone does not fully break down in water as believed retaining enough of a chemical residue to regenerate itself in the environment under certain conditions to an extent that the drugs'lives may be prolonged even in trace amounts.
Once invasive plants become established they can alter soil chemistry and shift nutrient cycling in an ecosystem.
Moreover these changes to the soil chemistry not only increase the competitive edge of this invasive species but also can inhibit
As the surface structures affect not only the mechanical and chemical properties but also the electronic thermal and optical parameters these findings will be of relevance to metals used in a variety of applications.
and the bacteria are resistant to being grown in the laboratory the only option for halting transmission of citrus greening has been to apply chemical pesticides to control the insect that spreads the bacteria Dandekar said.
Until we find safer alternatives to chemical pesticides it is extremely important that the evaluation of new pesticides is thorough.
When we used specific chemical tags to dye the pectin red and cellulose green we saw for the first time that pectin surrounds the torus and forms ringlike structures at the margin of the torus.
The Clean Air Act of 1970 significantly reduced sulfur dioxide emissions but decades of acid rain already had changed the soil chemistry of many sensitive regions including the White Mountains of New hampshire
and Chemistry analyses blood samples from spectacled caiman in Costa rica and finds that intensive pesticide use in plantations leads to contaminated species in protected conservation areas.
The chemical structure of the silk allows the substance to adhere to most substances underwater.
but try to put super glue in your bathtub without it ever getting a chance to dry says Jeff Yarger professor of chemistry biochemistry
which means a universal and chemical-free pest control method may be on its way. Muscled mothsalthough few gym rats want to admit it whispery moth wings
Recent interest in reducing chemical inputs into cranberry growing systems has led researchers to evaluate alternative methods such as flame cultivation as a potential nonchemical weed control option.
and other countries and they have recently been taken back to Africa to help ease severe shortages of livestock Feed in a major breakthrough JIRCAS scientists discovered several years ago the chemical substance responsible for BNI
Amoebas carrying chemical weaponsbut the situation was actually more complex than this. Brock quickly realized that some of the bacteria found in association with the Dicty weren't edible.
#The chemistry behind the character of bourbon, scotch and ryewhiskeys have captivated long the senses of connoisseurs
whether with smokiness and a whiff of vanilla or a spicy character with hints of caramel and now the emerging chemistry of brown spirits is proving that they have distinct chemical signatures to match the complex combinations of grains barrels aging and other
With sales of boutique bourbons and other small-batch whiskeys booming the chemical fingerprinting of whiskeys was the topic of a talk at the 246th National Meeting
Whiskeys'chemical profiles could be used for distillers'quality assurance or process improvement programs said Collins research director at the University of California-Davis Food safety and Measurement Facility.
Using chemistry's latest analytical tools Collins'team found that a single whiskey sample can contain hundreds of nonvolatile compounds the ones that tend to stay in the liquid rather than evaporate off.
The deliberate tasteful chemistry experiment begins with dense American white oak wood usually harvested from forests in the South
and rye whiskeys made in the same distillery developed chemical signatures that looked more like each other than those of bourbons and rye whiskeys respectively of another producer.
Collins'presentation was part of a two-day symposium called Polyphenolic Chemistry in Food Science: Flavor Color and Biofunctional Properties.
and our analysis methods will provide California policymakers with valuable tools to do so said Eric Masanet associate professor of mechanical engineering and of chemical and biological engineering at Northwestern's Mccormick School of Engineering and Applied science.
Talcott spoke at a symposium The Chemistry of Functional Beverages which are beverages that go beyond the basics of quenching thirst
Luke's Episcopal Hospital and the Texas Heart Institute appear in the Journal of Materials Chemistry B. This is not the first time bismuth has been tested for CT scans
Ajayan is the Benjamin M. and Mary Greenwood Anderson Professor in Mechanical engineering and Materials Science and of chemistry at Rice.
By studying the stable isotopic signature in each tree ring the researchers were able to compare the trees'growth patterns and changes in physiology to changes in atmospheric chemistry during the 20th century.
Connected at UNU-BIOLAC workshops in Montevideo Uruguayan chemistry professor Francisco Carrau and scientist Massimo Delledonne of Italy recently collaborated on sequencing the Tannat grape pressings
and other environmental factors affect the expression of genes in grapes and the chemistry of wine's aromas and color.
and their mentors from different disciplines i e. anthropology archeology chemistry and genetics has been looking at the role played by milk cheese
and around plants can substantially reduce the need for chemical fertilizers pesticides and herbicides. The report How Microbes can Help Feed the World is based on the deliberation of a group of scientific experts who gathered for two days in WASHINGTON DC in December 2012 to consider a series of questions regarding how plant-microbe interactions
#Changing river chemistry affects Eastern US water suppliesuman activities are changing the basic chemistry of many rivers in the Eastern U s. with potentially major consequences for urban water supplies
Paradoxically higher acid levels in rain soil and water caused by human activity are major triggers for these changes in river chemistry said associate professor Sujay Kaushalof the University of Maryland.
and other carbonate rocks making the region more prone to the types of water chemistry changes that the researchers found.
or saltpeter from Chilean mines and plowed in glistening granules of synthetic fertilizer made in chemical plants.
If they succeed the chemical apparatus for nitrogen fixation will be miniaturized automated and relocated within the plant
The study was published in the Journal of Agricultural and Food Chemistry. Story Source: The above story is provided based on materials by University of Missouri-Columbia.
while avoiding the serious environmental consequences associated with the overuse of chemical fertilisers. The mixture permits a controlled release of nutrients the regulation of water and an ideal environment for growing crops.
and chemical fertilisers in order for plants to grow. Control experiments have shown that water held in the zeolite increases the moisture content of soil in desert conditions.
and in the case of fruits and vegetables a better taste than those grown with chemical fertilisers.
Over the past century chemical fertilisers have been used to boost nitrogen levels and crop yields helping global food supply keep pace with population growth.
The overuse of chemical fertilisers causes the soil to lose both its ability to hold water
Though commonly consumed fruits like apples or strawberries have been studied extensively for their chemical constituents the nutritional benefits of fruits grown in such conditions are not well-known.
Their study appears in ACS'Journal of Agricultural and Food Chemistry. Eiichiro Fukusaki and colleagues point out that Kopi Luwak (Indonesian for civet coffee) is the world's costliest coffee often fetching $150-$200 per pound.
They describe identifying unique chemical fingerprints that can be used to identify authentic Kopi Luwak and distinguish pure Kopi Luwak from Kopi Luwak that has been mixed with cheaper coffee.
An important role is played by number of rare studies combining experimental fieldwork and research on sections of ecosystems as well as a broad selection of chemical and biological analyses.
when we pre-treated cancer cells with apigenin for 24 hours then applied the chemotherapeutic drug gemcitabine for 36 hours said Elvira de Mejia a U of I professor of food chemistry and food toxicology.
Zheng is an assistant professor of chemistry. The Air force Office of Scientific research the Welch Foundation the Packard Foundation and the Department of energy supported the research.
The report in ACS'Journal of Agricultural and Food Chemistry attributes watermelon's effects to the amino acid L-citrulline.
The findings come from a multi-year airborne survey of atmospheric chemistry called HIAPER Pole-to-Pole Observations or HIPPO.
The goal was constructing a unique snapshot of the chemical composition of the atmosphere. Additional recent data comes from regular flights conducted by NOAA at a network of locations.
Bioconjugates are drugs that contain chemical modules attached (conjugated) to a delivery vehicle by strong chemical bonds.
and professor of chemistry Keith Nelson. The work was supported by the Defense Threat Reduction Agency and the National Science Foundation.
The researchers then did a laboratory test of a formula based on this virus. The result was as efficient as chemical products:
therefore relatively slow compared to chemical insecticides that have an immediate effect upon contact. Its use also requires expert knowledge and detailed monitoring of the moth's biological cycle ecology and behaviour
and is a worthwhile alternative to chemical insecticides which are still the primary method used by farmers in Ecuador.
Lastly unlike the molecules in chemical plant-protection products viruses are able to mutate which limits the development of resistance in their host.
Writing in Environmental Toxicology and Chemistry researchers demonstrate the contamination of Pacific Tree Fogs in remote mountain areas including national parks;
A comparison of the frog tissue with water and sediment collected from the same sites shows that the frogs were the more reliable indicator of chemical exposure.
Halas Rice's Stanley C. Moore Professor in Electrical and Computer Engineering professor of physics professor of chemistry and professor of biomedical engineering is one of the world's most-cited chemists.
Now University of Manchester scientists working in collaboration with scientists at CSIR-Indian Institute of Chemical Biology in Kolkata have proven a link between rice containing high levels of arsenic and chromosomal damage as measured by micronuclei*in urothelial cells
and the remarkable rings that chemists marveled were even possible are described in a new paper in the Journal of the American Chemical Society.
Usually graphene grown in a hot furnace by chemical vapor deposition starts on a seed--a speck of dust or a bump on a copper or other metallic surface.
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.
Yakobson is the Karl F. Hasselmann Professor of Mechanical engineering and Materials Science and professor of chemistry.
#Widely used pesticide toxic to honeybeesforthcoming research in the journal Environmental Toxicology and Chemistry analyzes the physiological effects of three separate pesticides on honey bees (Apis mellifera.
The above story is provided based on materials by Society of Environmental Toxicology and Chemistry. Note: Materials may be edited for content and length.
The results were published in the Royal Society of Chemistry journal RSC Advances in September 2012.
or the microsporidia Nosema ceranae have changes in the chemical profile of their skin and in their brains finds research in Biomed Central's open access journal BMC Ecology.
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 above story is provided based on materials by Max Planck Institute for Biophysical Chemistry. Note: Materials may be edited for content and length g
because the chemistry involved is approaching its limits. But the new carbon fibers spun at room temperature at Rice already show impressive tensile strength
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 Air force Research Laboratory (through the University Technology Corp.)the Office of Naval Research the Air force Office of Scientific research and the Welch Foundation supported the research.
Ted Turlings an author of the study and head of the Laboratory for Fundamental and Applied Research in Chemical Ecology Institute of Biology at the University of Neuchã¢tel Switzerland.
the chemical is derived from an African chrysanthemumand acts by blocking chemical signals at nerve junctions in insects.
A new study in ACS'Journal of Agricultural and Food Chemistry has found that the much-despised weed actually produces its own herbicides that kill nearby plants.
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.
Other potential risk factors tested in the study included numbers of workers farm size organic vs. conventional production the use of chemical fertilizers compost
These other measures included cockroach traps powder insecticide and chemical methods such as wave devices. Only 1%of women used insect repellents during pregnancy. 10%of pregnant women used outdoor insecticides such as in gardens or vegetable plots and yards with plants:
have confirmed in a study published in ACS'Journal of Agricultural and Food Chemistry. Joyce Irene Boye and colleagues point out that at least 3 million people in the United states alone have CD.
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.
when effects were seen higher chemical exposures were associated with reductions in fetal heart rate accelerations an indicator of fetal wellbeing.
if large high-quality atomically thin MDS sheets could be grown in a chemical vapor deposition (CVD) furnace
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.
Yakobson is the Karl F. Hasselmann Professor of Mechanical engineering and Materials Science and a professor of chemistry.
#Roman seawater concrete holds the secret to cutting carbon emissionsthe chemical secrets of a concrete Roman breakwater that has spent the last 2000 years submerged in the Mediterranean sea have been uncovered by an international team of researchers led by Paulo Monteiro of the U s
Yet Roman harbor installations have survived 2000 years of chemical attack and wave action underwater. How the Romans did made itthe Romans concrete by mixing lime and volcanic rock.
whose career has been spent examining the archaeological data developing the chemical analyses and following the trail of the Eurasian grapevine (Vitis vinifera) in the wild and its domestication by humans this confirmation of the earliest evidence of viniculture in France is a key step in understanding the ongoing development of what he calls the wine culture of the world
What we haven't had is clear chemical evidence combined with botanical and archaeological data showing how wine was introduced into France
and expansion of a worldwide wine culture--one that has known its earliest roots in the ancient Near east circa 7000-6000 BCE with chemical evidence for the earliest wine at the site of Hajji Firiz in what is now northern
Researchers at the Max Planck Institute for Chemical Ecology Jena Germany discovered that the ability of Manduca sexta moths to recognize changes in the profile of volatile compounds released by plants being attacked by Manduca caterpillars allows them to lay their eggs on plants that are less likely
Ideal conditions for Manduca offspringnow the scientists from the Max Planck Institute for Chemical Ecology show another interesting effect of the chemical odor conversion:
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The expansion will mark Jove's eighth journal section after the recent additions of Jove Chemistry and Applied Physics.
This our second Science paper reports on the strength of large-area graphene films grown using chemical vapor deposition (CVD)
Currently scientists can grow sheets of graphene as large as a television screen by using chemical vapor deposition (CVD) in
The differences may correlate with changes in the birds'gut chemistry over time or with changes in diet
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