Under the TSCA, the EPA can't require a company to generate new toxicity data
for a chemical unless the agency already has evidence that it may be harmful — a classic catch - 22.
By contrast, the US spent five years building a large incinerator
for its chemical weapons on Johnston Island, a coral atoll in the Pacific.
Researchers at the Ruhr - Universität Bochum have found a way to turn climate - damaging CO2 into an alcohol that could serve as a raw material
for the chemical industry — without producing large amounts of salt waste that usually arise.
«We have taken a first important step towards harnessing CO2
for the chemical industry, which would be a great economic and environmental advantage.»
And both bills would also make it more difficult
for chemical makers to shield chemical information such as its name and formula from the public.
The work was supported by a National Science Foundation (NSF) Major Research Instrumentation Program (MRI) grant and by the National Science Foundation (NSF) and NASA Astrobiology Program, under the NSF Center
for Chemical Evolution.
A new bio-inspired zeolite catalyst, developed by an international team with researchers from Technische Universität München (TUM), Eindhoven University of Technology and University of Amsterdam, might pave the way to small scale «gas - to - liquid» technologies converting natural gas to fuels and starting materials
for the chemical industry.
«I think it's actually the first example of using bad breath as a defense, although I'm sure that everybody has had a personal encounter of something similar,» says Ian Baldwin of the Max Planck Institute
for Chemical Ecology in Jena, Germany.
The Coast Guard collected oil samples from the ASOP well and the slick, which were sent to Louisiana State University in Baton Rouge
for chemical fingerprinting.
The resin pulled CO2 out of the polycarbonate in its vigorous quest
for chemical equilibrium.
At present, the ocean takes up a quarter of the CO2 - released to the atmosphere by human industrial activities — with long - lasting consequences
for the chemical composition of seawater and marine habitats.
According to scientists at the Max Planck Institute
for Chemical Ecology, many proteins involved in the highly sensitive odor perception of insects emerged rather late in the evolutionary process.
«I have developed methods
for chemical analysis that for the first time make it possible to identify fragrance compounds that have been exposed to air and thus become potent allergens in small amounts and that people may come in contact with in consumer products,» says Johanna Rudbäck at the Department of Chemistry and Molecular Biology, University of Gothenburg.
Dry textiles loaded with catalysts are easy to transport, which means that it is simpler to meet the requirements
for some chemical processes where it is practically impossible to set up sophisticated chemical systems.
«The algae have to search their environment for the building material,» says Pohnert, who is also a Fellow at the Jena Max Planck Institute
for Chemical Ecology.
Ewald Große - Wilde and Bill S. Hansson and their colleagues from the Max Planck Institute
for Chemical Ecology in Jena, Germany, have now taken a closer look at the olfactory system of wingless insects, which − in evolutionary terms − are older than winged insects: the jumping bristletail Lepismachilis y - signata and the firebrat Thermobia domestica, which are both wingless, as well as the leaf insect Phyllium siccifolium, which is winged and was used as a control.
A new bio-inspired zeolite catalyst might pave the way to small scale «gas - to - liquid» technologies converting natural gas to fuels and starting materials
for the chemical industry.
Garcia led the interagency Chemical Requirements Working Group for ASPR as an America Association for the Advancement of Science (AAAS) Fellow (2008 - 9), where he developed medical countermeasure requirements to inform the U.S. government on desired medical countermeasures
for chemical agents.
Until now, the prevailing hypothesis has said that as stars evolve, metals (astronomers» term
for any chemical elements heavier than hydrogen and helium) in the swirling disk around them form tiny «seeds» that attract other matter and slowly grow into planets.
Scientists from the Max Planck Institute
for Chemical Ecology in Jena, Germany, have succeeded in identifying a relatively simple molecule that is able to regulate complex mating behavior in vinegar flies: a fatty acid methyl ester called methyl laurate.
Many researchers are content to follow NASA's lead as it cautiously moves from «following the water» in search of likely habitable or once - habitable environments on Mars to «following the carbon» — that is, looking
for chemical traces of ancient life.
At each site, Dragonfly would sample the surface and atmosphere with a suite of carefully selected science instruments that will characterize the habitability of Titan's environment, investigate how far prebiotic chemistry progressed, and search
for chemical signatures indicative of water - and / or hydrocarbon - based life.
Since Viking, though, NASA has mostly played it safe, scouring Mars's surface not
for the chemical signatures of life but for ancient habitable environments — the goal of the Curiosity rover.
«Blue holes bring forgotten chemical element back on stage: UNIGE chemists have uncovered a new bond formation
for chemical catalysis that is based on antimony.
«A new way to store thermal energy: Researchers create material
for a chemical heat «battery» that could release its energy on demand.»
Without that, he says, the team's explanation
for the chemical cocktail is based on inference rather than evidence.
Co-authors of the paper are Ilija Čorić, Brandon Mercado, and David Vinyard of Yale, and Eckhard Bill of the Max Planck Institute
for Chemical Energy Conversion, in Germany.
So astronomer Flavien Kiefer of the Paris Institute of Astrophysics and colleagues looked
for chemical signatures of the comets» tails in the Beta Pictoris system.
«Knowing that a material has some topological state of matter, however, does not mean immediately predicting its properties,» cautions co-author Claudia Felser, a materials scientist at the Max Planck Institute
for Chemical Physics of Solids in Dresden, Germany.
«We were confident all along that we would find a solvent that would be compatible with existing DNA nanotechnology,» added Hud, who is also director of the NSF - NASA Center
for Chemical Evolution and associate director of the Parker H. Petit Institute of Bioengineering and Bioscience, both at Georgia Tech.
That is the hope of Countermeasures Against Chemical Threats (CounterACT) project that is part of an initiative at the National Institutes of Health aimed at developing improved antidotes
for chemical agents.
Since 2010, Dr. Kubicek has headed the Platform Austria
for Chemical Biology (PLACEBO), which provides chemical biology technologies, including high throughput screening and chemical proteomics, to the scientific community.
Scientists of the Max Planck Institute
for Chemical Ecology in Jena and the Institute of Agricultural and Nutritional Science of the Martin Luther University in Halle - Wittenberg, Germany, have now succeeded in visualizing the immediate wound or herbivory responses in plants.
Using behavioural assays, researchers at the Max Planck Institute
for Chemical Ecology in Jena, Germany, and their colleagues in Nigeria discovered that the insects prefer the smell of citrus.
Very few of these will be useful because enzymes have to be an exact fit
for the chemical they react with, just as a lock can only be opened by a specific key.
«I could imagine that the water samples currently taken by cantonal or federal authorities on a daily or even hourly basis
for chemical screening could also be used to record biodiversity,» speculates Altermatt.
Working with Professors Joydip Mukhopadhyay and Gautam Ghosh and other colleagues from the Presidency University in Kolkata, India, the geologists found evidence
for chemical weathering of rocks leading to soil formation that occurred in the presence of O2.
Because of this, terahertz radiation can be used
for chemical detectors.
This is the finding of research conducted by an international team from the University of Amsterdam (UvA), the Swedish University of Agricultural Sciences and the Max Planck Institute
for Chemical Ecology.
«We are thinking about illicit drugs detection and this could be the next aim we focus on,» says the project's sensor specialist Frank Schnürer of the Fraunhofer Institute
for Chemical Technology in Karlsruhe, Germany.
«In step toward controlling chemistry, physicists create a new molecule, atom by atom: Study paves the way for creating on, off buttons
for chemical reactions.»
Prather acknowledges funding from the Centers
for Chemical Innovation program at the National Science Foundation and the California Energy Commission.
Massachusetts Eye and Ear researchers have shown that mifepristone, a drug currently FDA - approved
for chemical abortion, prevents the growth of vestibular schwannoma (also known as acoustic neuroma) cells.
Kensuke Kobayashi (Professor, Graduate School of Science, Osaka University) and Sadashige Matsuo (Assistant Professor, Graduate School of Engineering, The University of Tokyo), in cooperation with research groups led by Teruo Ono (Professor, Institute
for Chemical Research, Kyoto University) and Kazuhito Tsukagoshi (Research Fellow, International Center for Materials Nanoarchitectonics, National Institute for Materials Science), produced graphene samples capable of forming p - n junctions by combining gate electrodes and performed precise measurements of current - fluctuation («shot noise») in the graphene p - n junction in the QH regime in the strong magnetic fields and at low temperatures.
The chemistry in the growth rings in the shells of the clam — which occur much like the annual growth rings in the centre of trees — can act as a proxy
for the chemical make - up of the oceans, enabling researchers to reconstruct a history of how the oceans have changed over the past 1000 years with unprecedented dating precision.
The study has led the University of Surrey to file a patent for a family of new «supercatalysts»
for chemical CO2 recycling.
A new material that appears to be an ordinary liquid, but can be shaped, moulded and sliced like Play - Doh or plasticine, could be used to make novel lenses or mini-containers
for chemical reactions.
And they took urine samples from the five babies to check
for the chemical by - products of nicotine.
Besides this erosion, there's also potential
for chemical corrosion.
The metal in the glove — used to protect those handling radiological materials such as plutonium — likely acted as a catalyst
for a chemical reaction generating heat, said Wirth, chairman of the committee, which oversees the Waste Isolation Pilot Plant.