[Cane for the blind with a device for detecting and recognizing pedestrian obstacles]. / Trost' s ustroistvom obnaruzheniia i raspoznavaniia peshekhodnykh prepiatstvii dlia invalida po zreniiu.

The paper deals with the development of methods and a device for the blind to walk by orientating himself through remotely contacting study of what has happened and is happening on the road. An optoelectron method for detection of vertical obstacles and ground gaps has been proposed. The authors have drawn up the structural and functional diagrams of a device which is combined with a walking-stick and which makes it possible to detect 3 types of pedestrian obstacles with appropriate sound signalling.

[The use of differential reflectometry in the EHF range as a new method in the diagnosis of ischemic heart disease]. / Zastosuvannia dyferentsial'noi reflektometriï KVCh-diapzonu iak novoï metodyky v diahnostytsi ishemichnoï khvoroby sertsia.

Described in the article is a new method of EHF differential reflectometry for ischemic heart disease (IHD), which relies on measurement of the anisotropy factor (AF) in sites of precardiac integumentum of patients in the millimeter range. A total of 30 patients were examined divided into six groups according to different functional classes. It is for the first time that anisotropy zones have been identified in IHD patients. The reflexogenic zone in the III intercostal space along the parasternal line was found to be of the most informative value. It is in this very zone that the largest AFmax values are achieved for myocardial infarction (MI) group exceeding the corresponding values for the rest of stenocardia groups by 20 to 100%. It follows from the foregoing that our method of MM-reflectometry permits diagnosing IHD together with differentiating the state of those patients presenting with angina pectoris and MI.

[The anisotropy of the skin of the precordial area in patients with stable and unstable stenocardia]. / Anizotropiia shkiry peredkordial'noi dilianky u khvorykh iz stabil'noiu ta nestabil'noiu stenokardiieiu.

Coronary patients were studied for the precordial area skin anisotropic properties with the aid of EHF differential-diagnostic reflectometry. Disclosed in the patients were the following points of anisotropia: E18S in the 5th intercostal space along the medioclavicular line on the left, E18D--a symmetric point on the right, R24S in the 3d intercostal space along the parasternal line on the left, R24D--a symmetric point on the right. The value for anisotropia determined by anisotropia factor in decibels will rest with the degree of abnormal changes on the cardiac muscle, which fact has been documented by electrocardiographic findings.