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PubMed1992

A multipurpose teaching workstation using expert systems, CD ROM and interactive laserdisc.

This demonstration shows a multipurpose workstation used in a clinical teaching application which combines currently available software suitable for clinical diagnosis and teaching. The medical software includes QMR, Scientific American Medicine, the Slice of Life and generic video laserdisc authoring software developed at the University of Ottawa. The system allows a clinical instructor either in an individual or in a small group teaching setting on a ward or in a classroom, to access high quality differential diagnosis information via QMR, which is then supplemented by the text components of Scientific American Medicine on CD ROM, with video laserdisc of the appropriate anatomy, imagery and pathology provided by one of the various laserdiscs. The generic authoring software allows the instructor or students to construct subject related tutorial or testing modules either with or without video laserdisc support. The workstation uses DESQview as the multitasking environment to control the various resources. This program allows easy transfer from one application to another and allows for marking and pasting of text material into a study document. DESQview can also be used to script a specific learning sequence. The demonstration will show the interaction required to study a specific clinical problem and how this can be made into a meaningful multimedia experience with hardcopy for study purposes.

CD-ROM↗
PubMed1992

[Spanish scientific production in food and nutrition from 1987 to 1990].

BACKGROUND: The aims of this study were: to quantify the Spanish scientific production with international repercussion, to determine the degree of world diffusion and the participation of the different autonomic communities and the organisms implicated with reference to the area of sciences of alimentation and nutrition between 1987 to 1990. METHODS: Articles published during this period of time were selected by the Medline system, delimiting Spanish production. The articles selected were classified according to autonomic communities and institutions and in relation to the subsection of the area in question. The impact factor obtained from the Science Citation Index was used as an indicator of scientific diffusion. The autonomic communities of Catalonia and Madrid made up almost 50% of the scientific production between 1987 and 1989 with greater participation being observed from the other communities in 1990. The institutions of greatest scientific contribution were the medical and science schools. Thirty percent of the articles referred to experimental nutrition and toxicology of alimentation. CONCLUSIONS: a) Spanish participation in the diffusion of scientific studies on nutrition is similar to global participation in medical sciences, b) in 1990 an attenuation was detected in the differences existing in the degree of participation by the autonomic communities in the national scientific production; c) the schools of Medicine make up the institutions with greater relevance in scientific production while this activity is not reflected within the hospitals.

CD-ROM↗
PubMed1991

Comparison of search strategies on CD Plus/MEDLINE.

OBJECTIVE: To compare two strategies for searching MEDLINE using the CD Plus/MEDLINE program on compact disc. DESIGN: Comparison study. INTERVENTIONS: Two search strategies were designed and executed for each of two topics (patient recruitment to clinical trials and attitudes of patients, the public and health care professionals toward clinical trials). Strategy A: searches based on key words selected from the medical subject heading (MeSH) tree structure. Strategy B: searches based on MeSH terms most frequently used to index a known set of relevant articles. Defined search restrictions were then applied. The effects of the restrictions on the absolute number of citations retrieved and on the proportion of relevant citations were assessed. OUTCOME MEASURES: Number of articles retrieved, number of relevant articles, precision and recall of each search strategy and overlap between strategies. MAIN RESULTS: Strategy A produced more citations than strategy B (recruitment 147 v. 38, attitude 366 v. 57) but had more inappropriate citations (recruitment 75 v. 17, attitude 265 v. 25). Both strategies produced 73 relevant recruitment citations and 101 relevant attitude citations. In the recruitment search although the precision did not differ significantly between strategies A and B the difference in recall was significant (98.6% v. 28.8% respectively, p less than 0.0001). In the attitude search strategy A had a lower precision than strategy B (27.6% v. 56.1%, p less than 0.0001) but a much higher recall (100% v. 31.7%, p less than 0.0001). CONCLUSIONS: Strategy A would be more valuable to researchers doing extensive reviews, whereas strategy B would be useful for the busy clinician who simply wants a few appropriate references quickly and is willing to sacrifice comprehensive retrieval in the interest of efficiency.

Algorithms↗