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Biomedical subjects

P Kasal

Publications and source records attributed to P Kasal.

At least 19 recordsLinked to original sources
PubMed1989

[The physician and the computer. 22. Programming in the Prolog language].

A modern tool of interaction with the computer is the programming language Prolog. The authors discuss its position among other languages, emphasize its different character (declarative programming). They outline basic structures of Prolog and its type of function. They also give examples of creating data bases of patients and the possibility to use this language in the creation of expert systems in medicine.

Medical Informatics↗
PubMed1989

[The physician and the computer. 26. Commercial software].

The authors give an account of different types of commercially supplied programmes which can be used also in the health services. They discuss the properties and types of different software - data base programmes, text processors, graphic and statistical programmes and finally so-called integrated software along with data on possible mutual combinations. At the same time also general conditions for the application of these programmes within the framework of clinical informations systems are discussed incl. their advantages and short-comings.

Medical Informatics↗
PubMed1989

[The physician and the computer. 27. Equipment-computer connection (signal processing)].

The authors discuss basic problems of analogue - digital transmission focused on practical questions with regard to the application of medical technique in combination with a computer. They discuss the different parts of the digital-measurement chain, different methods of signal transmission and finally also practical applications.

Analog-Digital Conversion↗
PubMed1989

[The physician and the computer. 28. Expert systems].

The authors review problems of expert systems and their application in medicine. They discuss their application, structure and function. Special attention is devoted to questions which concern the users, in particular the selection of the decision making method with regard to the character of the problem and then the structure of the knowledge base. The structure of the medical knowledge base has some specific features which are formulated as the classification of rules of medical knowledge.

Expert Systems↗
PubMed1989

[The physician and the computer. 29. Learning systems and neuron networks].

The authors discuss basic properties of the process of learning as a form of artificial intelligence. They deal with the application of adaptive and learning systems in the area of identification, regulation, manipulation and recognition. A very important perspective trend is learning in a medium of neuron networks which are actually software or hardware simulation of the functional architecture of the CNS. The authors discuss peculiar features of representation of knowledge, structure and mode of function of this neuron network. Finally the authors give examples of the solution of optimalization and classification tasks within the framework of neurocomputers.

Artificial Intelligence↗
PubMed1989

[The physician and the computer. 30. Evaluation of time, different aspects of the same problem].

The authors mention different ways in which a give problem can be described within the framework of the theory of sets, logic, mathematical analysis, statistic and cybernetics. As an example of the confrontation of the mentioned aspects they discuss different approaches to the evaluation of time as a variable--temporal logic, Markov chains, theory of catastrophes which play a part in medicine, in particular in prognostic considerations. These different aspects make possible solutions which may differ and their application depends in particular on the purpose for which they are intended.

Logic↗
PubMed1989

[The further development of bronchial asthma which began in childhood].

The paper evaluates the contemporary health status in 115 former child asthmatics, investigated in the past at the allergological department of the First Paediatric Clinic and Faculty Policlinic in Prague-Motol. The data were obtained by processing of a questionnaire and retrospective analysis of the patients' health records. The mean age of the investigated group is 26 years (21-37) incl. 77 men and 38 women. Of these 85, i.e. 74%, still suffer from asthma in adult age, incl. almost half (55 patients) who suffer from the milder form, only one quarter suffers from the more severe form (30 patients) and in one quarter the quiescent stage has been reached. In those where asthma persists there is concurrent eczema (26%), pollinosis (44%), other forms of allergy (43%). Where asthma is in the quiescent stage, eczema is present in 10%, pollinosis in 33% and other allergies in 27% of the investigated subjects. A greater probability of favourable development is in boys as compared with girls and in those without a family-history of allergy and where the disease developed only during late childhood and the patients themselves do not suffer from any other allergosis. A positive family-history of allergy, early onset of the disease and concurrent eczema signalize a poorer prognosis.

Adult↗