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The study of indicators of Kaplan indices in dogs has not been previously conducted and their normal values are not described in the available literature. Given the subtlety of the mechanisms of autonomic regulation of the heart, there is a need to expand the diagnostic base for very common heart diseases in dogs.The aim of the research is to study the Kaplan indices in dogs to assess the possibility of including them in an integrated approach to the analysis of the functioning of the heart in dogs. 74 healthy dogs were examined. The dependence of changes in the Kaplan indices on age was studied. An asymmetric distribution of Kaplan indices in the studied group of dogs was established. Intervalograms were recorded using a computerized polygraphic amplifier "MKS KARDi2-NP" (Russia). Recording was performed on dogs in a resting state, standing or sitting. To analyze the obtained intervalograms, to obtain the values of the Kaplan indices, the integrated instrumental-methodological complex "CONAN" was used.The following Kaplan indices have been studied: Respiratory modulation index (IDM); Sympathoadrenal Tone Index (SAT); Slow-wave arrhythmia index (IMA).The normal values of Kaplan's indices were established: IDM, SAT, IMA for dogs. In this regard, the assessment of these indices should be included in the basic set of methods for diagnosing heart disease in dogs. The absence of dependence of changes in indices on age in dogs was found. The lack of research on Kaplan indices requires additional research in groups of different weight on a representative sample.

Automated systems of support and decision making (ASDS), using knowledge bases, containing expert opinions of leading specialists in a certain type of expertise, can render great assistance in decision-making. Such intellectualized systems can be effective, in particular, in the work of a criminal investigator and conduct forensic examinations. A criminal expert is obliged not only to report his conclusion, he must justify it and at the same time, so that the investigator or the court could understand and assess whether this conclusion is correct. In order to address issues related to the improvement of forensic analysis, it is necessary to have, above all, appropriate information support. The following paper offered a number of specialized applied problems in the field of technical diagnostics, the received results can be used for intellectual support of a substantiation and decision-making also concerning questions of investigation of separate kinds of crimes or carrying out of other kinds of forensic analyses.