CORRELATION OF THE SKULL PARAMETERS WITH THE WIDTH OF THE DENTAL ARCHES

The study of regularities and variant anatomy in the structure of organs and parts of the human body is one of the fundamental problems of morphology having an applied orientation. The main method of studying a person's aesthetics is a morphometric examination of the head. It includes the study of its size, size and shape of the face and its individual parts, as well as the relationship between the size and shape of the skull and dental arches. The main linear parameters of the skull and their interrelations with the parameters of the width of the dental arches of the upper jaw are studied on the skull of male of mature age with physiological occlusion of teeth. The study was carried out taking into account the type of skull. It was revealed that the index of the width of the dental arch from the vestibular side is lesser then the index of the upper face and the intergnatic part in the frontal part, and in the distal part - to the contrary. Indicators of the width of the dental arch from the palatal side were less in their values to the parameters of the skull at all levels of measurement in all craniotypes. Obtained data on the width of the dental arch of the upper jaw, linear parameters of the skull and their interrelations expand and deepen the information available in the literature on the dimensional characteristics of the craniofacial complex

Thermally irreversible photochromic dithienylethenes

Abstract. A lot of previously unknown derivatives of dithienylperfluorocyclopentene (DTPFCP) were synthesized. It was shown that 2, 2 -dialkylsubstituted DTPFCP'S are phtochromes. The quantum yields of forward and backward photochemical reactions and spectral parameters of open and cyclic forms of the photochromes synthesized were measured. An attempt to obtain fluorescing phtochromes by means of introduction of benzoxazolyl, benzthiazolyl and 1,2,4-oxadiazolyl moieties in 5 and 5 positions of DTPFCP failed; these compounds were synthesized but they do not fluoresce

EDUCATIONAL PORTAL FOR BASIC DISCIPLINE TEACHER: USAGE EXPERIENCE, IMPLICATIONS, AND RECOMMENDATIONS

Abstract. The article covers issues of practical usage of electronic educational resources for a discipline “Theoretical Fundamentals of Electrical Engineering”. There is a description of the Educational portal for TFE: its possibilities and content. The authors adduce the data from students’ questionnaires concerning portal’s usage, implications and recommendations for practical usage of electronic educational resources for basic disciplines studies

of the Russian Academy of Sciences

This article considers a method of data mining from text documents by using logical deduction rules. This algorithm is used in information processing of heterogeneous sources. The method allows to mark out a set of data objects from a flow of semistructured full-text information, presented in natural languages, links between data flows, and to form a repository of factual information. This algorithm includes procedures of grapheme, morphological, syntax and logical-semantic analysis. The method has a software support and practical application in automated information systems and is used in accomplishing tasks of analytical data treatment