Chemicals search

Visithttp //ntp-support.niehs.nih.gov/Main Pages/Chem-HS.html. This is the site for the National Institute of Environmental Health Science. You will find MSDS-type chemical health and safety information from the National Toxicology Program. Chemical searches can be performed by chemical name, synonym, or CAS (Chemical Abstract Service) number. 

Specific chemical search image (Melcer and Chiszar, 1989). They learn a mouse s chemosensory signature, which is independent of envenomation, and follow its scent trail (Chiszar 1990). 

Atema, J., Holland, K., and Ikehara, W. (1980). Olfactory responses of yellow fln tuna [Thunnus albacares) to prey odors chemical search image. Journal of Chemical Ecology 6, 457-465. 

Melcer, T. and Chiszar, D. (1989). Striking prey creates a specific chemical search image in rattlesnakes. AnimalBehaviour 37,477-486. 

The chemical search for synthetic substitutes started in 1892 and gave rise to several compounds with improved properties which largely replaced the naturally occurring cocaine. 

The natural substance cocaine was already beeing employed for local anesthesia in ophthalmological surgery in 1884 (Vandam, 1987). However, the clinical use of cocaine is limited because of its abuse potential, its intense vasoconstriction and eventual arrhythmias due to its reuptake-inhibition of catecholamines, and instability upon sterilization. The chemical search for synthetic substitutes started in 1892 and gave rise to several compounds without abuse potential and with improved onset and duration of action, tolerability and stability of the preparation. 

CAS ONLINE American Chemical Society, Columbus, Ohio CAS ONLINE The Chemical Search System From Chemical Abstracts Service 1967-present CHEMICAL ABSTRACTS SERVICE Equivalent of the printed Chemical Abstraets(CA). Bibliographic data, keyword phrases, index entries, general subject headings, and CAS Registry Number(s) for chemistry-related publications in 50 languages from 150 countries. Includes worldwide patent documents. Easy crossover to the CAS CHEMICAL REGISTRY... 

TSCA places requirement that manufacturers perform various kinds of health and environmental testing, use quality control in their production processes, and notify EPA of information they gain on possible adverse health effects from use of their products. Under TSCA, manufacturing is defined to include importing, and thus all requirements applicable to manufacturers apply to importers as well. Under TSCA, EPA classifies chemical substances as either existing chemicals or new chemicals. Searches of the nonconfidential, public Inventory, are available. 

Terence Wilson, Chemical Searching on an Array Processor, Research Studies Press, Somerset, UK, 1993. 

Extrapolations within the respective groups of the Periodic Table should thus be an appropriate approach to predict the chemical behavior of superheavy elements [14]. Examples are the detailed treatments [16] of chemical and physical properties of the 7p elements 113 and 114, eka-thallium and eka-lead. Predictions of properties common to several superheavy elements were carried out for the design of group separations as a first step in chemical search experiments. Examples are the high volatility of elements 112 to 116 in the metallic state [17], or the formation of strong bromide complexes of elements 108 to 116 in solution [18]. 

IBM Chemical Search Alpha, IBM, Almaden Services Research, San Jose, CA https // chemsearch.almaden.ibm.com/chemsearch/SearchServlet. 

Maurette M., Engrand C., and Kurat G. (1995) Chemical search for cometary grains in Antarctic micrometeorites. In Lunar Planet. Set XXVI, The Lunar and Planetary Institute, Houston, pp. 9I5-9I6. 

Chemical search for new and improvement of known recipes and compositions, increase of the number of different foam-forming oligomers and polymers, blowing agents, surfactants, cross-linking agents, etc. 

Science Citation Index , ISI ProceedingsSM, Reaction Citation Index, and the Derwent Innovations IndexSM. Science Citation Index is available on STN , where it is called SciSearch. We wiU begin with the older print-versions for chemical searches. 

Routine Procedure. For a chemical search the usual procedure is to consult the indexes of Chemical Abstracts, plus the indexes of special journals in the field concerned, when these journals are not covered or not completely covered by Chemical Abstracts. For instance, if the search deals with a new vitamin preparation, Chemical Abstracts will not suffice. 

Lanham, B. E., The Use of the U.S. Patent Office Classification in Chemical Searches, Abstracts of Papers, 119th Meeting, ACS, April 1951, p. 7F. 

There is a smaller set of tools that are typically run on the server. Any SQL commands and any procedural language functions are run on the server. In principle, there is complete flexibility of the server side tools, since in principle any computer program can be written in any computer language. Later chapters of this book show how the RDBMS server itself can be extended using server side programming to handle chemical information. These extensions may directly solve the needs of a particular project, but more importantly they increase the flexibility of the RDBMS to handle chemical information. Client programs can use the results of chemical searches and other computations as well. 

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