Mediadidactics in on-line basic geometric and graphic training of students of technical universities

Актуальность статьи обусловлена необходимостью анализа эффективности применения медиатехнологий в базовой геометро-графической подготовке инженеров в формате on-line обучения. Целью статьи является анализ применения технологий медиадидактики в базовой геометро-графической подготовке в условиях on-line обучения. Представлен практический опыт ее применения в интеллектуально интерактивном дистанционном on-line формате. Показано, что результаты такого обучения сопоставимы с результатами, полученными ранее с применением когнитивных проектных методик. В перспективе, с целью повышения эффективности обучения в технических вузах и геометро-графической подготовке в частности, требуются дальнейшие исследования в плане использования более совершенных инструментальных средств, возможностей развития технического творчества с развитием базы творческих заданий, совершенствования технологий обучения графическим дисциплинам. В контексте этих исследований предлагается систематическое повышение квалификации преподавательского корпуса. Статья предназначена для обсуждения научно-педагогическим сообществом. The relevance of the article is due to the need to analyze the effectiveness of the use of media technologies in the basic geometric and graphic training of engineers in the on-line training format. The purpose of the article is to analyze the application of media didactics technologies in basic geometric and graphic training in the conditions of on-line training. The practical experience of its application in an intelligently interactive remote on-line format is presented. It is shown that the results of such training are comparable with the results obtained earlier with the use of cognitive design techniques. In the future, in order to improve the effeciency of training in technical universities and geometric and graphic training in particular, further research is required in terms of using more advanced tools, opportunities for the development of technical creativity with the development of the base of creative tasks, improving the technologies of teaching graphic disciplines. In the context of these studies, a systematic professional development of the teaching staff is proposed. The article is intended for discussion by the scientific and pedagogical community.

Traditional and experimental aspects of cognitive design mechanisms

The article considers the possibilities of the language of spatial forms that express various emotional states. The design of the urban-resort environment of Sochi becomes a carrier of a certain mood, which makes it figuratively significant. Through cognitive mechanisms, a person is included in the dialogue of reading the environmental text and the allusions, symbols, metaphors contained in it, etc. In an ecological design, the mechanism of synthesis of traditional and experimental aspects is laid down, which are embodied in a form that is accessible to perception through its emotional qualities, which affect consciousness through the synergistic influence of form and content.

High-Strength Porcelain Veneering of Zirconia Prosthetic Mimetic Restorations (PRIMERO) by Cognitive Design and Manufacturing

Esthetic prosthetic restorations, with natural reflection, color from within and color gradients influenced by the internal dentinal core anatomy can best be accomplished by veneered zirconia, rather than with crowns of color and structure graded monolithic zirconia. Concern about the high incidence of chipping with some of the porcelains for zirconia substructures has led to a massive shift from veneered zirconia to the use of monolithic zirconia for crowns and bridges. Because zirconia has four times the hardness of metal, initial concern about antagonist abrasion could with numerous studies be negated. Clinical long-term effects of lack of abrasion of full zirconia crowns, in comparison with 30-75 μm/year for surrounding and opposing dentition is still poorly documented. Massive crack formation in enamel probes has been reported in specimens after in-vitro fatigue testing with opposing monolithic zirconia. In-vitro and clinical studies have shown that only reinforcement of the structure of veneering material can prevent chipping. This article compares the fatigue behavior of three-unit bridges with a substructure of Primero zirconia veneered with Primero Enamel (PR) with bridges with Cercon Base zirconia inner-structure veneered with Ceramco PFZ and Cercon Ceram S (CR1 and CR2) and assess the possibilities and increase their scope to cognitive design and manufacturing of porcelain veneered zirconia crowns and bridges. Fatigue testing of four times eight 3-unit bridges were produced for each of the three porcelains and a reference. The results show that efficient crack-stopping prevented chipping with the PR bridges, while the bridges with conventional porcelains CR1 and CR2, showed failures. We conclude that chipping is mainly porcelain related. Cognitive design and fabrication of the dentin zirconia core will lead to prosthetic mimetic restorations (PRIMERO) with natural esthetics.