Computer database

The matching of a spectrum for an unknown compound to a reference spectrum stored in a computer database. 

Herbicides are also sometimes classified according to mode of action, selectivity, registered uses, and toxicity. The ever-increasing importance of herbicides and other pesticides and agrochemicals to a wide range of users, regulators, and researchers has led to the development of multiple and extensive computer databases. The primary database resources contain collected information relevant to herbicides, and numerous resource pubHcations are available to those needing information on the various aspects of herbicides (2). 

The U.S. government, a primary sponsor of scientific and technological developments that fostered the computer and communications technologies needed by the on-line database industry, also sponsored database development projects, information usage studies, and combined computer database development—usage projects. The successors of some of these projects continue to be prominent and include DIALOG, MEDLINE, BRS, LEXIS, and the Chemical Abstracts Registry System. 

Other excellent summaries describing what is known of the formation processes and geological setting of these deposits have also been assembled (30—32). Listings of nodule compositions for these and other areas have been compiled (33,34). Eor many sites these data are available as computer databases (qv) maintained by the NOAA National Geophysical Data Center in Boulder, Colorado. 

Nuclear Data Sheets, Academic Press, San Diego, Calif., TvaluatedNuclear Structure Data File (ENSDF), a computer database of nuclear stmcture data evaluated by an international network of evaluators, is maintained at the National Nuclear Data Center, Brookhaven National Laboratory. NUDNTis a computer database of decay data extracted from the ENSDF. 

Published Cost Correla.tions. Purchased cost of an equipment item, ie, fob at seller s site or other base point, is correlated as a function of one or more equipment—size parameters. A size parameter is some elementary measure of the size or capacity, such as the heat-transfer area for a heat exchanger (see HeaT-EXCHANGETECHNOLOGy). Historically the cost—size correlations were graphical log—log plots, but the use of arbitrary equation forms for correlation has become quite common. If cost—size equations are used in computer databases, some limit logic must be included so that the equation is not used outside of the appHcable size range. 

You will need a documented procedure for generating the AVL, adding new subcontractors, changing data, and removing subcontractors that no longer meet your criteria. Whether in paper form or in a computer database, treat it as a controlled document or controlled data and apply the document/data controls developed to meet element 4.5 of ISO 9001. 

A situation where staff operate under self control is for telephone orders where there is little documentary evidence that a transaction has taken place. There may be an entry on a computer database showing that an order has been placed with a particular supplier. So how would you verify compliance with the requirements of this clause in such circumstances ... 

RTECS. 1996. Registry of Toxic Effects of Chemical Substances (RTECS). National Institute for Occupational Safety and Health (NIOSH). Computer database online. 

JW Ely, JA Osheroff, KJ Ferguson, ML Chambliss, DC Vinson, JL Moore. Lifelong self-directed learning using a computer database of clinical questions. J Fam Pract 45 382-388, 1997. 

The rather thoughtless use of chemical compounds for plant protection in the second half of the XX century has brought about the accumulation in the storehouses of some facilities of about 1000 tons of preparations that are unfit for use, forbidden or unidentified. The sanitary and epidemiological service jointly with the Ecological inspection and the District station for plant protection are conducting an inventory of the storage sites of these toxic wastes. Inventory data with indications for the place of the storage, the names of the preparations and their quantity is kept in a computer database. 

Clearly this is an arena in which computer database technology has a major role to play. Perhaps the best developed such database is COMAR (an index Code of Reference Materials). This database tries to provide an up-to-date way to locate CRMs from all around the world. The Central Secretariat is presently housed at the Federal Institute for Materials Research and Testing (BAM), Berlin, Germany. Further information is available at the COMAR website (http //www.comar.bam.de/). Nevertheless, this database is not restricted to ocean science applications (indeed... 

SANSS. 1990. Structure and Nomenclature Search System. Chemical Information System (CIS) computer database. 

If raw data are transcribed to a computer database, neither the electronically stored data nor the paper printout can substitute for the original. Information entered into the com-... 

Chemical research is an ongoing activity, with new information available everyday. As a result, the present book does not indicate everything known about every chemical. More information on each chemical is available in books like those listed in this book s bibliography, via online computer databases like Info Trac and Medline, and from poison control centers or a library. 

You re applying for a job at a small- to medium-size company that doesn t scan resumes into a computer database or use applicant-tracking software. 

Finally, I should mention a word about filing technical papers. It is tempting to keep a file of papers by subject, and this is satisfactory for collections of 100 to 200 papers, but beyond that a more systematic method is necessary. Ben Wylie, my dissertation advisor, filed his papers by unique serial number and uses an ingenious system of cross-referenced index cards for retrieving papers by author, title, or subject. I ve adopted the same serial-number system, but I use a computer database to cross reference the file records. I use that database online to help locate a needed reference at a moment s notice. 

A computer database of critically selected equilibrium constants is found in R. M. Smith, A. E. Martell, and R. J. Motekaitis, NIST Critical Stability Constants cf Metal Complexes Database 46 (Gaithersburg, MD National Institute of Standards and Technology, 2001). Books dealing with the experimental measurement of equilibrium constants include A. Martell and... 

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