Databases survey

Pidcock, E., Motherwell, W. D. S., Cole, J. C., A database survey of molecular and crystallographic symmetry Acta Crys-tallogr., Sect. B 2003 59, 634-640. 

The outputs of Step 3 include a list of contaminants of concern to be measured a list of information sources and methods that indicate how each action level will be derived a list of information that provides continuity with the past and future work, such as databases, survey coordinates, uniform sample numbering systems and identification of the appropriate analytical methods to meet the action level requirements. 

Results of the database surveys proposed that rats were more sensitive then mice and that tumorigeni-city detected in mice only was never the sole reason for regulatory action. Furthermore, findings in rats only were twice as frequent as in mice only all known human carcinogens were positive in rats. Therefore, it was proposed that normally one long-term study in one rodent species would suffice. The species should be the most appropriate and on practical convenience, the rat would be preferred. From the European point of view, one chronic bioassay in the rat would be sufficient. However from the US perspective, an additional short-term study was requested. The shortterm models are further explained later in this article. 

EPA. 1997b. The national survey of mercury concentrations in fish database survey 1990-1995. Draft Report. September 1997. Prepared for the US Environmental Protection Agency. Standard and Applied Sciences Division under EPA contract no. 68-C40051 (Tables only). 

Weak polarization induced interactions of the C =N- -Cl type have also been used in crystal structure design. Cambridge Structural Database surveys show that this interaction has definite length (N C1 3.00-3.50 A) and angle (C=N-- C1 100-180°) attributes and therefore a certain structure-defining ability which can be used in crystal engineering. The structure of 2,3-dicyano-5,6-dichlorobenzenes (47) has been studied for the formation of molecular... 

The New Ship Division Database and Its Impact on Survey Reporting", 1993, LRTA, A Buckland and DW Woodcraft. 

There is a good chance that you have had some contact with geographic information systems (GIS). A GIS is a computer representation of a system that uses all pertinent survey and database information to generate intelligent maps and queries. Much has been published on the subject. In addition there are many vendors of the technology and many seminars. GIS is a complicated subject. Several early GIS projects were not successful. Often GIS projects are very expensive. 

The 16 possible motifs shown in Figure 2.21b never occur. Even if this database is limited compared with the universe of existing proteins, the survey clearly demonstrates that a few topological arrangements occur much more frequently than others, and that most possible complex motifs never occur or occur only in a few cases. In 1995 a preliminary survey of a much larger database of known structures yielded the same basic conclusions. 

Of course, densities of pure metals do not change over time, though the available precision may improve a little over the decades. However, many more complex data do change significantly as new experiments are done, and new materials or material systems come along constantly and so entirely new data flood the literature. Materials scientists, like chemists, physicists and engineers, need means of finding these. Those means are called databases. This brief chapter surveys how databases are assembled and used, with special attention to materials. 

Srisurapanont M, Jarusuraisin N, Kittirattanapaiboon P Treatment for amphetamine dependence and abuse. Cochrane Database Syst Rev 4 CD003022, 2001 Srisurapanont M, Ali R, Marsden J, et al Psychotic symptoms in methamphetamine psychotic in-patients. Int J Neuropsychopharmacol 6 347-352, 2003 Substance Abuse and Mental Health Services Administration Overview of Findings From the 2002 National Survey on Drug Use and Health (DHHS Publ No SMA 03-3774). Rockville, MD, Substance Abuse and Mental Health Services Administration, 2003... 

The National Occupational Exposure Survey (NOES), conducted by NIOSH from 1980 to 1983, estimated that 3,205 workers in the agricultural services industry were exposed to endosulfan in the workplace in 1980 (NIOSH 1984). The NOES database does not contain information on the frequency, concentration, or duration of exposure of workers to any chemicals the survey provides only estimates of the number of workers potentially exposed to chemicals in the workplace. 

Fig. 6.2 Plot of6675 foods from the USDA Database for Food Consumption Survey (USDA 1989-91)...

The revised database holds over 23 000 analyte values for 660 measurands and 1670 reference materials produced by 56 different producers, from 22 countries. The database is restricted to natural matrix materials (i.e. made from naturally occurring materials, excluding calibration standards manufactured from pure chemicals). Information has been extracted from the relevant certificates of analysis, information sheets, and other reports provided by the reference material producers. As a general rule, the authors have only included in the compilation reference materials for which a certificate of analysis or similar documentation is on file. Information included in the survey is on values for measurands determined in reference materials, producers, suppliers, the cost of the materials, the unit size supplied, and the recommended minimum weight of material for analysis, if available. The new searchable database has been designed to help analysts to select reference materials for quality assurance purposes that match as closely as possible, with respect to matrix type and concentrations of the measurands of interest and their samples to be analyzed see Table 8.3. 

A survey of the CCDC database on halogenated nitroxides revealed only a few examples of structures showing halogen bonded motifs, which will be... 

Without a comprehensive database, pharmacy workforce studies have relied on surveys based on sampling, census questionnaires, and modeling. The last national count of pharmacists was attempted in the early 1990s [55] and did not account for the opening of new schools (eight were founded between... 

Information about the prevalence of other oxygenates in the environment is limited. However, there is evidence that other oxygenates may be found at sites contaminated with MTBE non-MTBE oxygenates were identified as a contaminant at 29 of the projects in U.S. EPA s database. In addition, several surveys have assessed the nature and extent of contamination with other oxygenates within the United States.11-14 15... 

Cardiovascular Effects. There is currently considerable scientific debate as to whether there is a causal relationship between lead exposure and hypertension. Another area of controversy is whether African Americans are more susceptible to the cardiovascular effects of lead than are whites or Hispanics. The evidence from both occupational studies and large-scale general population studies (i.e., National Health and Nutrition Examination Survey [NHANES II], British Regional Heart Study [BRHS]) is not sufficient to conclude that such a causal relationship exists between PbB levels and increases in blood pressure. The database on lead-induced effects on cardiovascular function in humans will be discussed by presenting a summary of several representative occupational studies followed by a discussion of the findings from the large-scale general population studies. 

Bragg L.J., Oman J.K., Tewalt S.J., Oman C.L., Rega N.H., Washington P.M., Finkelman R.B. The U.S. geological survey coal quality (COALQUAL) database, Version 2.0. U.S. Geol. Survey Open-File Report 97-134,1998. 

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