Single database

Databases in CRDB have been coded according to the six classes described (1). Table 1 provides the number and percentage of databases associated with the six database classes. Despite multiple classes assigned to some databases, all classes are normalized to the 6998 database entries in CRDB. Table 2 presents the same data without the normalization. Because a single database entry may have more than one class assignment, there are more database entry-class assignments than database entries in CRDB. 

Instances of chemical accidents, like to those of Section 7.1, relative to the hazards listed in Step 3 are listed. Information for these must come from various souices since there is not a single database for chemical incidents. If the plant has operating experience, this is valuable information, although the data may be sparse. 

Links between types represent ary association of the members of one type with the members of the other type no matter how the association is implemented. Within a single component, associations typically may be implemented with memory address pointers within a single database, associations may be implemented as pairs of keys in a table. Between components, an association represents a form of identification that each one recognizes as referring to a single object within itself. For example, we could draw an association between Person (real ones) and the Personal Records in a national Social Security database the Social Security number identifies members of one type with those of the other. 

Modem tables of thermod5mamic data are made self-consistent either by methods of iteration or by computer-assisted simultaneous solutions [1]. The value of AH for any chemical reaction that can be obtained from two or more thermodynamic cycles should have the same value from each of those cycles if the data are obtained from the same tables. Any thermodynamic calculation, therefore, should be carried out using data from a single database whenever possible. Thus, in listing some values of enthalpies of formation below, we provide values from different databases in separate tables. 

To simplify the process, it is important that a single database is developed for the whole programme. This is particularly relevant to the production of safety data, not only in the interests of efficiency but also so that any safety issues will be recognised as they arise. If a particular set of adverse events is suggested by preclinical toxicology then they should be flagged in the database so that the monitors attention is drawn to them. 

In this paper, we present a distributed application for acquiring events. The application is fully distributed and has the ability to concentrate information from multiple heterogeneous formats into a single database for event correlation and visualization. An event in the context of this paper... 

Newer technology allows for opaque, translucent, transparent samples as well as multiple film thicknesses for both reflectance and transmittance measurements. The newer technology provides a spectral match (matches spectral curve of the sample at each wavelength across the visible spectrum 360-740 nm). The advantage of spectral matching is its ability to match both color and opacity from a single database. 

Using many-flux technology, computer color-matching systems can automatically formulate with or without white, at all levels of opacity, from a single database. In addition, satellite systems can offer added value by providing the same high-quality formulation results as a full system, with a low cost and feature limited satellite system. 

Just as the reflectance and transmittance measurements can be used in one database, contrast measurements can also be applied to a single database (or even combined with reflectance and transmission measurements for the calibration of the database). In this case the two measurements that would be combined are the over white and over black measurements. Typically this technique is applied to coatings and printing inks on paper or screen inks on textiles (white and black cloth). 

It is recognized that a single database of experimental data will always contain a limited amount of information, and this information may become obsolete within a short period. The retrieval of data for a given chemical can be optimized by structuring available data sources in a list that can be consulted (queried), for example, by endpoint. Ultimately the efforts needed to collect existing information on a given chemical can be reduced by... 

ChemSpider currently searches over 14 million compounds in multiple chemical structure databases. These include databases of curated literature data, chemical vendor catalogs, molecular properties, enviromnental data, toxicity data, analytical data, and so on. ChemSpider intends to aggregate into a single database all chemical structures available within open access and commercial databases and to provide the necessary pointers from the ChemSpider search engine to the information of interest. This service will allow users to either access the data immediately via open-access links or have the information necessary to continue their searches into commercially available systems. 

Data was pooled from three clinical trials (547 patients) studying the use of darbepoetin alfa in the treatment of chemotherapy-induced anemia. Serial PK and PD (Hgb concentrations) measurements were collected throughout the studies and merged into a single database along with patient-relative covariates. A population PK/PD model was developed that simultaneously modeled darbepoetin alfa... 

The interest in the present pharmaceutical industry is very wide spanning the overall drug discovery sphere encompassing data related to small molecules, structure activity relationships, pre-clinical candidates, clinical candidates, launched drugs, biomarkers, toxic molecules, and other target protein inhibitors. While no single database could address all these areas, attempts were made to at least address them individually. We have developed databases... 

Single databases which cover only one data collection (BID, CIV, HSD, UMW)... 

Data query languages (DQLs) or simply query languages (QLs) are used to write queries and reports. Of course, it is possible to combine a DDL, DML, and DQL into a single database language. 

We have identified the three major objectives for a DBMS as data independence, data redundancy reduction, and data resource control. These objectives are important for a single database. When there are multiple databases potentially located in a distributed geographic fashion, and potentially many users of one or more databases, additional objectives arise, including ... 

Results from the observation records are gathered and compiled in a single database. Reports from the database indicate which types of at-risk behavior are most prevalent and in which locations they are taking place. Based on the insights generated during the review and analysis phase, recommendations for improvement can be made. 

Clearly there is a sense in which a client-server database is distributed, in that application programs run on many clients that are located in different parts of the network. However, in a client-server context there is a single server managing a single database described using a single data model. The remainder of this section introduces some of the issues raised by the relaxation of some of these restrictions. 

An enterprise resource plaiming (ERP) system is used to integrate different functions of various departments across acompany into asingle decision support system. ERP combines these functions into a single integrated software program that runs on a single database so that personnel from different departments can share information easily and avoid... 

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