scholarly journals Influence of quantitative composition of study groups on the success of students in the discipline “Life safety and basics of labor protection” during the training of radio technical professionals

2020 ◽  
Vol 5 (1) ◽  
pp. 52-58
Author(s):  
Oleg Bereziuk ◽  
Keyword(s):  
Academic Performance ◽  
Engineering Students ◽  
Least Squares Method ◽  
Study Groups ◽  
Life Safety ◽  
Nonlinear Dependence ◽  
Quantitative Composition ◽  
Regression Equations ◽  
Labor Protection ◽  
Radio Engineering

The paper conducts an up-to-date study to determine the dependence of average academic performance on the number of students in the subgroup when studying the discipline "Life safety and basics of labor protection" during the training of future radio engineering specialists. In order to determine the dependence of average academic performance on the number of students in the subgroup when studying the discipline "Life safety and basics of labor protection" during the training of future radio engineering specialists, the academic performance of students who studied this discipline was analyzed. The research was conducted separately in academic groups with different quantitative composition, where students received grades on a 100-point scale in the discipline "Life safety and basics of labor protection". The study used the method of regression analysis of the results of univariate experiments and other paired dependencies with the choice of the best type of function from the sixteen most common variants according to the criterion of the maximum value of the correlation coefficient. The regression was performed on the basis of linearization transformations, which make it possible to reduce the nonlinear dependence to a linear one. Determination of the coefficients of regression equations was carried out by the least squares method using the developed computer program «RegAnaliz», which is protected by a certificate of copyright registration for the work. A graphical dependence of average academic performance on the number of students in the subgroup when studying the discipline "Life safety and basics of labor protection" during the training of future radio engineering specialists is constructed, which allows us to clearly illustrate this dependence and show sufficient convergence of theoretical results with actual data. As a result, it was found that with an increase in the number of students in the subgroup, the average academic performance decreases according to the hyperbolic law, which confirms the need to divide large groups into subgroups during laboratory and practical classes during the study of the discipline "Life safety and basics of labor protection" by radio engineering students. In addition, in order to better assimilate the material and increase the average academic performance, it is advisable to perform laboratory work in this discipline in teams of no more than 5 students

scholarly journals The method for identification of mathematical models in two-factor pharmaceutical research

2021 ◽  
Vol 7 (3) ◽  
pp. 3-11
Author(s):  
O.V. Kutova ◽  
R. V. Sahaidak-Nikitiuk ◽  
I. V. Kovalevska
Keyword(s):  
Mathematical Models ◽  
Microcrystalline Cellulose ◽  
Least Squares Method ◽  
Optimal Algorithm ◽  
Potato Starch ◽  
A Priori ◽  
Quantitative Composition ◽  
Cellulose Solution ◽  
Regression Equations ◽  
Quantitative Factor

The methodical approach to solving problems of identification of mathematical models of pharmaceutical objects with two dependent quantitative factors has been considered; the total value of them is determined by the quantitative composition of the mixture and is fixed at a definite level.Aim. To determine the optimal algorithm for processing experimental data using the minimum number of experiments according to the plan 22to establish an adequate mathematical description of research at the technological stage.Materials and methods. Such materials as potato starch (quantitative factor x1) and the microcrystalline cellulose solution (quantitative factor x2) were used. The content of excipients should be 54 % of the total mass. Based on a priori data the content of potato starch x1 should be in the range from 45 to 50 % of the total amount (45 ≤ x1 ≥ 50), and x2 characterizes an aqueous solution of microcrystalline cellulose with a concentration in the range from 2 to 5 % (2 ≤ x2 ≥ 5). The least squares method was applied to determine the coefficients of the regression equations. During our research the Mathcad computer environment (MathSoft Ins., USA) was used.Results. To reduce the number of solutions and make the right decision it is necessary to have a reliable source of information and impose the appropriate restrictions based on a priori data and practical experience of the researcher. Conclusions. The studies have shown that to identify mathematical models the analysis of the main (final) effects of the interaction of factors is effective, it is also expedient to interpret this interaction based on the interpretation of the dependences of objective functions on each factor provided that the variable is fixed at the minimum and maximum levels of variation.

Relationship between satisfaction with learning outcomes and mental health among medical and engineering students

2020 ◽  
pp. 70-78
Author(s):  
O. Bukhanovskaya ◽  
N. Demcheva
Keyword(s):  
Mental Health ◽  
Academic Performance ◽  
Mental Disorders ◽  
University Students ◽  
Learning Outcomes ◽  
Engineering Students ◽  
Clinical Forms ◽  
Complete Survey ◽  
Medical University

Method of calculating the index of crisis of gratification has been developed on the basis of the complete survey of 995 students of medical university and 804 students of engineering university, determination of clinical and social parameters and factors related to the process of education in the specialized university. It included: a scale for the assessment of the degree of intellectual intensity, academic performance, stress situations related to the peculiarities of education. Reliable differences in values between groups of healthy students, students with preclinical and clinical forms of mental disorders are revealed as a result of calculation of the index of gratification. The authors conclude that satisfaction with the results of education has a significant impact on the mental health of university students.

Academic performance and its relation with intrinsic factors in engineering students

2018 ◽  
Vol 11 (90) ◽  
pp. 4473-4481
Author(s):  
Waldyr Fong Silva ◽  
Jesus A. Cuases Arrieta ◽  
Javier Pinedo Cabarcas
Keyword(s):  
Academic Performance ◽  
Engineering Students ◽  
Intrinsic Factors

scholarly journals COMPARATIVE ANALYSIS OF DIFFERENT CRITERIA OF SITE STRUCTURAL STABILITY IN THE TIME SERIES

2019 ◽  
pp. 119-128
Author(s):  
Liliya Andreevna Landman ◽  
Andrei Vladimirovich Faddeenkov
Keyword(s):  
Time Series ◽  
Regression Model ◽  
Structural Changes ◽  
Least Squares Method ◽  
Complex Structure ◽  
Standard Normal Distribution ◽  
Regression Equations ◽  
Unknown Parameters ◽  
Chow Test ◽  
Wide Range

The concept of structure is used to describe a set of stable relations between the main parts of the object, which describe its integrity and identity, i.e, preserving the basic properties for a wide range of internal and external changes. This concept usually relates to the concepts of system and organization. The structure expresses a stable part of the system that is slightly changed during different reforms. Over the years structural changes take place because of active economic policy or as a result of spontaneous, uncontrollable processes. Therefore, it seems to be quite natural to find out whether there have been structural changes in the observation period, and to find them reflected in the specification of the model. The basic ideas of methods for determining structural changes in the time series dynamics have been considered, such as Chow test, Gujarati test and Poirier method. The power study was conducted for the three possible cases of change in time series trends. The random error was modeled according to the standard normal distribution. A linear multiple regression model with three independent variables was used as a time series model. Estimation of the vector of unknown parameters of the model was conducted using least squares method. For each of the three criteria the of test the null hypothesis about time series instability was carried out using the F -criterion, which involves finding the residual sum of squares of a regression model and analysis of correlation between its decline and the loss of degrees of freedom. It can be noted that Gujarati and Poirier equations have a more complex structure than equation of Chow test; however, using Chow test assumes estimation of the parameters of the three regression equations.

scholarly journals Academic Performance of Engineering Students

2020 ◽  
Author(s):  
Morteza Nagahi ◽  
Raed Jaradat ◽  
Samaneh Davarzani ◽  
Mohammad Nagahisarchoghaei ◽  
Simon Goerger
Keyword(s):  
Academic Performance ◽  
Engineering Students
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