PubMed · 8469093
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B A Tanner. Improving PC efficiency by accelerating hard drive performance.. https://pubmed.ncbi.nlm.nih.gov/8469093/
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A three-dimensional (3D) stereoelectronic pharmacophore developed from a 3D quantitative structure-activity relationship (QSAR) investigation formed the basis of the development of a two-phase data-mining methodology to uncover novel leads to inhibit human immunodeficiency virus type 1 (HIV-1) reverse transcriptase at the nonnucleoside binding site. The database searching phase employed a field search for ligand requirements (such as log P, molecular volume) that were accessible from the database keys. Next, a 3D database search was performed that used an automated fitting procedure and the calculation of several binding parameters. These binding parameters were used to test the hits by a discriminant function that was previously trained to recognize active from inactive analogs. During the structural evaluation phase of the methodology, conformational properties and complementary receptor features of the hits were examined by 2D and 3D evaluations, which were followed by molecular modeling investigations. When this method was applied to a test database, an improvement from 6.4% to 100% active analogs was achieved.
OBJECTIVE: To assess the agreement between the functions of seven configurations of Patient Data Management Systems (PDMS) and the Dutch specifications prepared by the users prior to use. DESIGN: An observational descriptive study with hospital visits of seven configurations of five different PDMS systems including three commercial systems and two locally developed systems. SETTING: Seven Dutch level I intensive care units in university and teaching hospitals. MEASUREMENTS AND RESULTS: A substantial disagreement was found between the Dutch specifications and the actual functions of the PDMS configurations tested. Between the PDMS configurations, major differences in key features, including "automated charting", "information and care planning", and "management information", were observed. Automated charting is adequately supported by the three commercial systems. All configurations tested had limited functions supporting care planning. In none of the configurations tested was the required function present to support unit management with reports on resource utilisation and outcome performance. The automatic calculation of prognostic scores was either absent or incorrect. The implementation, the (continuous) configuration and the training required a substantial investment in costs and human resources. CONCLUSION: Today, none of the PDMSs tested satisfy the Dutch specifications. This can be explained by technical impossibilities of the systems and shortcomings in the actual configuration or in the unit organisation. The PDMS might become a valuable tool in improving the quality of ICU practice, but full implementation of these systems according to the specifications still has a long way to go.
MOTIVATION: In the past decade, a vast amount of mapping data has been generated on the human X chromosome, without a mechanism which would provide a global view of exactly what has been achieved. Large datasets are available electronically, but in heterogeneous formats and with incompatible access modes. In addition, relationships between objects in different datasets are often not specified. RESULTS: We discuss the problem of integrating these data into one database and define a number of requirements that are vital for any integration approach. We have developed IXDB, the Integrated X chromosome database, which fulfils those requirements and aims at providing a global view on genomic data at a chromosomal level. IXDB represents a conceptual framework based on identifying, storing and analysing relationships between biological objects, and includes a series of tools to automate the integration of such information. It currently focuses on physical mapping data, as a starting point towards a map of the human X chromosome that should provide a uniform and global research resource for ongoing and future sequencing and functional studies. AVAILABILITY: IXDB is available at http://ixdb.mpimg-berlin-dahlem.mpg.de. The iace2ixdb software and a description of the Iace data format are available from the authors. CONTACT: hrc@genoscope.cns.fr