Interdisciplinary links of mathematical sciences in higher educational institutions

The flow of information sweeps more and more various fields of activities in the modern world. In this connection future teachers' informational culture ought to be formed throughout all the years of study and not within one subject but in a set of majors. It requires a correct organization of inter-subject links of mathematical sciences in higher educational institutions. © 2014 Taylor & Francis Group

Methodology of studying polygons using the computer system “mathematics”

© 2015, Econjournals. All rights reserved. The urgency of the problem stated in the article is due to the fact that the traditional method of teaching mathematics to students of physics and mathematics generally considers mathematical problems that do not require large computing and constructions, while solving complex problems requires more time, which is usually done at the expense of time that is to be spent on other branches of mathematics, so there is a need to study some sections of mathematics with the help of information technology. The purpose of the article is to develop methods of using information technologies in teaching elementary mathematics to students of physics and mathematics department. The leading method in the study of this problem is a design method aimed at selection and structuring of the contents of the computer tutorial (CT) under the heading “Polygons” in the system “Mathematics.” The designed CT for students of physics and mathematics includes a classification of polygons based on their historical information, method of construction, basic properties, the use of polygons in life, in construction, etc. The developed CT is aimed at improving students’ knowledge of elementary geometry, it promotes the formation of the students’ abilities to create computer textbooks (workshops), which they can use in their professional activity thus endowing them with the skills necessary to modern highly qualified teachers

Guia de museus como meio de envolvimento de crianças em idade escolar primária no patrimônio histórico e cultural

The purpose of the work was to study the cognitive interest of primary school-aged children in the historical and cultural heritage, in order to create children's guide-book to the Museum-reserve “Kazan Kremlin”, located in the Republic of Tatarstan, Kazan, Russia.Theoretical and empirical research methods were used to solve the assigned tasks. The analysis of pedagogical and museological literature was performed. Questionnaire survey and interviewing were carried out, followed by mathematical analysis of the sample.The experience of museum pedagogy was used as a theoretical method. In the course of its studying it was revealed, that younger schoolchildren were attracted by external effects and practical orientation of excursions. And the most effective way was the creation of game situation, in which the child was stimulated to make individual discovery.The study was based on a specially developed questionnaire for children of primary school age, for their parents and museum workers of the complex “Kazan Kremlin”.Based on the results of collected data, the guide-book was developed. It includes learning games, which contain historical, art and religious information, adapted to the group of children 7-10 years old.El propósito del trabajo fue estudiar el interés cognitivo de los niños en edad escolar primaria en el patrimonio histórico y cultural, con el fin de crear una guía para niños de la reserva del museo "Kazan Kremlin", ubicado en la República de Tatarstán, Kazán, RusiaSe usaron métodos de investigación teóricos y empíricos para resolver las tareas asignadas. Se realizó el análisis de la literatura pedagógica y museológica. Se llevaron a cabo cuestionarios y entrevistas, seguidos de un análisis matemático de la muestra.La experiencia de la pedagogía museística se utilizó como método teórico. En el curso de su estudio se reveló que los escolares más pequeños se sentían atraídos por los efectos externos y la orientación práctica de las excursiones. Y la forma más efectiva fue la creación de la situación del juego, en la que el niño fue estimulado para hacer un descubrimiento individual.El estudio se basó en un cuestionario especialmente desarrollado para niños de edad escolar primaria, para sus padres y trabajadores de museos del complejo "Kazan Kremlin".Con base en los resultados de los datos recopilados, se desarrolló la guía. Incluye juegos de aprendizaje, que contienen información histórica, artística y religiosa, adaptada al grupo de niños de 7-10 añosO objetivo deste trabalho foi estudar o interesse cognitivo das crianças em idade escolar primária do património histórico e cultural, a fim de criar um guia para reserva crianças museu "Kazan Kremlin", localizada na República de Tatarstan, Kazan . RússiaMétodos de pesquisa teórica e empírica foram utilizados para resolver as tarefas atribuídas. A análise da literatura pedagógica e museológica foi realizada. Questionários e entrevistas foram realizados, seguidos de uma análise matemática da amostra.A experiência da pedagogia do museu foi usada como método teórico. No curso de seu estudo, revelou-se que as crianças mais jovens eram atraídas pelos efeitos externos e pela orientação prática das excursões. E a maneira mais eficaz foi a criação da situação do jogo, em que a criança foi estimulada a fazer uma descoberta individual.O estudo foi baseado em um questionário especialmente desenvolvido para crianças em idade escolar primária, para seus pais e trabalhadores de museus do complexo "Kazan Kremlin".Com base nos resultados dos dados coletados, o guia foi desenvolvido. Inclui jogos de aprendizagem, que contêm informações históricas, artísticas e religiosas, adaptadas ao grupo de crianças de 7 a 10 anos

Waxes in asphaltenes of crude oils and wax deposits

© 2016 The Author(s)Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected. The high molecular weight paraffins in asphaltenes would form a crystalline phase with a melting point of 80–90 °C. The peculiarities of the redistribution of high molecular paraffin hydrocarbons between oil and the corresponding wax deposit were detected. In the oils, the high molecular weight paraffinic hydrocarbons C50–C60 were found, which were not practically detected in the corresponding wax deposits

Waxes in asphaltenes of crude oils and wax deposits

© 2016, The Author(s).Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected. The high molecular weight paraffins in asphaltenes would form a crystalline phase with a melting point of 80–90 °C. The peculiarities of the redistribution of high molecular paraffin hydrocarbons between oil and the corresponding wax deposit were detected. In the oils, the high molecular weight paraffinic hydrocarbons C50–C60 were found, which were not practically detected in the corresponding wax deposits

PROFIL PRODUKTIVITAS KEPALA SMA NEGERI DI JAKARTA DAN FOKUS PEMBENAHANNYA

The objective of the research was to obtain facts about the principals productivity of senior high school state in Jakarta. The research was conducted in the working area of Jakarta Education and Culture Department. Study time from January to March 2015. The design of this study used survey method. The data collection tool in the form of a questionnaire is prepared using a Likert scale. The number of samples determined by using Slovin formula obtained as many as 60 people. The sample was obtained by simple random sampling technique. The results were analyzed using descriptive statistical techniques. The result of the research can be concluded that: First, headmaster's productivity profile of senior high school state in Jakarta based on 25 predictor component that has reached good category as much as 18 pieces or equal to 72%.Secondly, the predictor component of headmaster productivity of senior high school state in Jakarta which is categorized requires correction of 7 units or 28%

The use of thermal analysis methods for monitoring the development of bitumen reservoirs using thermal recovery technologies

© 2017 Akadémiai Kiadó, Budapest, Hungary The products obtained from production wells of Ashalchinsk and Mordovo-Karmalsk bitumen fields of the Republic of Tatarstan (Russia) using thermal recovery technologies as well as the core materials recovered from the in situ combustion zone of Mordovo-Karmalsk field were studied with the thermal analysis methods. Using thermal derivatography and calorimetry, it was established that the products obtained from production wells were water–bitumen emulsions, the water content in water–bitumen emulsions was determined, the stability of water–bitumen emulsions was evaluated, and the fractional bitumen composition was characterized. Using thermal derivatography, the organic matter content in the core material and the degree of its transformation in the result of in situ combustion were determined

Legal reality as a juridical category

© Medwell Journals, 2016.The study is devoted to the research of juridical meaning of the category "legal reality". The researchers definition of the category is given. The main elements of the category are studied. The conclusion is made that legal reality as a fundamental juridical category is a complex multi-layer system, comprising the whole range of both the real juridical phenomena and the legal ideal and determining the sphere of law existence for an individual and social medium

To the issue of the use of sodium-lithium countertransport rate in red cell membrane as a prognostic marker of artherial hypertension mordbidity and mortality: an experience of 25-year follow up cohort study

Aim. The article discusses the results of a long-term cohort study devoted to the search for the possible relationship of arterial hypertension morbidity and mortality with the rate of sodium-lithium countertransport (Na+-Li+-СT) in red cell membrane which is a marker of the structural and functional state of the cell membrane. Methods. The study of the functional state of cell membranes by determining the maximal rate of Na+-Li+-CT in red cell membrane with quintiles analysis of the rate of Na+-Li+-CT. Screening clinical examination, including registration of blood pressure (BP), ECG study, the study of eyeground vessels, one- and two-dimensional echocardiography (EchoCG), the study of the lipid spectrum of the blood. Analysis of medical records. Results. Based on the results of long-term follow up of the aging cohort total mortality is not associated with Na+-Li+-СT rate in red cell membrane. At the average age of 50 bimodality is detected in the development of new cases of primary arterial hypertension associated with the values of Na+-Li+-СT rate of the 1st quartile (36-206 micromoles of Li per liter of cells per hour) and 3d quartile (276-347 micromoles of Li per liter of cells per hour). At the average age of cohort of 55.6±6.7 years the distribution of patients with arterial hypertension by quartiles of Na+-Li+-СT rate becomes almost identical with the statistically non-significant prevalence of 4th quartile of Na+-Li+-СT rate. Conclusion. The expected correlation between mortality among persons with hypertension and membrane disorders determined by the high rate of Na+-Li+-СT was not revealed. However, the tendency to the predominance of mortality at high Na+-Li+-СT rate suggests that with a much larger sample size a significant relationship may be confirmed. The necessity of studying the relationship between mortality from arterial hypertension and high rate of Na+-Li+-СT in female cohorts remains actual. Increasing difference of mortality rate among patients with and without arterial hypertension with high rate of Na+-Li+-СT can indicate the relationship between mortality from arterial hypertension and membrane disorders

The composition and thermal properties of waxes in oil asphaltenes

© 2015 Akadémiai Kiadó, Budapest, Hungary. Asphaltenes of four Russian and Kyrgyzstan crude oils were investigated with calorimetry, gas chromatography and X-ray diffraction analysis. It was established that asphaltenes contain waxes. Hydrocarbon composition and the thermal properties of waxes co-precipitated with asphaltenes and isolated by acetone from crudes oils according to the EN 12606-2 method were determined and compared. It was found that n-alkanes C40+ dominate in the waxes co-precipitated with asphaltenes. Waxes in asphaltenes are characterized by high temperature and enthalpy of melting/crystallization. Co-precipitation of high molecular weight waxes with asphaltenes is necessary to consider in order to determine the actual content and composition of asphaltenes and total content and composition of waxes in crude oil more accurately