Development Of Laboratory Work Research Articles

Requirement analysis of development of integrated islamic values laboratory worksheets using flip PDF professional applications in general biology courses

A needs analysis has been carried out for the development of a laboratory worksheet based on Islamic values in general biology courses. Needs analysis was carried out through interviews with general biology lecturers, laboratory work assistants and students. The activity was also followed by a field study. The data analysis technique is qualitative descriptive analysis. The results of the interviews showed that 1. the laboratory work module used was unattractive and impractical so that it made it difficult for students to understand work procedures, 2) the laboratory work module used had not been integrated with Islamic values so that it was not in accordance with the learning plan made by the lecturer. The results of the needs analysis showed that the lecturers and laboratory work assistants strongly agreed to use general biology laboratory work guidelines integrated with Islamic values using the Flip PDF Professional application. Furthermore, 95.5% of students stated the need for the development of laboratory work integrated with Islamic values. 54.5% of students stated that general biology laboratory work is difficult to understand. 72.2% of students agree that the developed guide is in the form of an e-book and 95.5% of students want to develop a practical and interesting general biology laboratory work guide.

Реалізація міжпредметних зв’язків для застосування комп’ютерних методів контент-аналізу

The article substantiates the importance of interdisciplinary connections between informatics and sociology, the expediency of studying computer methods of content analysis by college students. An analysis of theoretical sources has been implemented to understand the essence of the concepts of content analysis, computer methods of content analysis. Content analysis is considered as a method that allows you to study the objects, phenomena, processes and properties of social reality presented in text data. Content analysis includes processing, evaluation, and interpretation of the form, content of texts and sources of textual information. It is proved that computer software allows to automate and speed up this process, to avoid the subjectivity of the researcher’s judgments, and to increase the amount of information being processed. The article emphasizes the importance of mastering content analysis by students, since these skills will contribute to their ability to assess the properties of information flows, understanding the nature of information confrontation, the formation of critical, algorithmic thinking and information technology competence. The article describes a pedagogical experiment on the integration of sociology and computer science for college students. The purpose of the experiment is the development of computer methods of content analysis for sociological research. The experiment provides for the coordination of thematic plans of disciplines and the development of laboratory work in informatics for the experimental group. The topics of laboratory work on the use of individual computer methods for content analysis are outlined. The use of the MS WORD text editor for manual coding of text data and partial implementation of content analysis is provided; MS Excel spreadsheets for creating a content analysis matrix, calculating the frequency of various words in texts and further interpreting the content; a special automated package for content analysis QDA MINER (free LITE version). The features of the use of each of the programs, their resource potential and complexity are determined. Criteria for evaluating control sections (analytical reports) created by students at the beginning and at the end of the experiment have been developed. Criteria: manifestation of system effective knowledge; availability of reasonable conclusions; the presence of an attempt to adequately predict social phenomena; visualization of the results of content analysis. The results were measured and compared in dynamics, and the effectiveness of the implemented methods was analyzed. The effectiveness of the experiment was proved, which is confirmed by an increase in the average score in the experimental group compared to the control group. The article presents a statistically valid conclusion about the effectiveness of the proposed methods in the experimental group at a significance level of 0.05. Mathematical testing of statistical hypotheses about the reliability of the results was carried out using Student’s t-test for two independent samples.

Analysis of the application of various numerical integration methods and their practical implementation in MATLAB CAD

The article presents an analysis of numerical integration methods. These methods are frequently used in solving various technical problems in production. Iterative numerical methods in MATLAB CAD are considered and implemented, including the method of integration by central rectangles, the trapezoidal method, and Simpson’s rule. The practical significance of the work is familiarization with basic numerical methods that are widely used in computing, as well as with a powerful computing tool – MATLAB. In the course of the work, the algorithms of each method are described, program codes with illustrations for evaluating the results of calculating by a particular method are given. The conclusions are drawn regarding the accuracy of each method. The software and mathematical excerpts used in the work are publicly available on the Internet, which allows anyone to carry out similar work and make sure that the written codes and the obtained conclusions are correct. This work can be used not only to train students in the field of electronic device development in terms of their algorithmization and for the organization of laboratory work, but also in the creation and design of real devices both in production and within a higher educational institution, for example, for the development of laboratory work using specialized CAD. Familiarization and study of this software are conducted at the departments of one of the leading engineering universities of the Russian Federation.

The Development of Laboratory Work on the Topic: Pre-processing of Information from CVS Sensors of a Mobile Rescue Robot in Smoke Conditions

The solution to the problem of processing long-range and television information received by the sensors of a mobile rescue robot in a smoke-filled environment is considered. A selection of budget sensors is made among those available in the free sale and having open-source software. The selected sensors are linked into a single information field in the free ROS software package using open-source libraries. The first stage of processing is the calibration of sensors to reduce the effect of distortion, as well as comparing the color image of the television camera with the readings of the rangefinder. The second stage is the analysis of existing solutions for image filtering in smoke conditions and the selection of the best according to the criteria for reducing the number of “smoke-filled” pixels and speed of response. In this paper, an algorithm is selected based on an atmospheric physical model with image analysis in the YCrCb space. The operation of this algorithm is demonstrated and a method for approximating a long-range image using a filtered color image is proposed to restore information from a rangefinder and further construct a model of the environment. Suggestions were made for further analysis and improving the accuracy of the algorithm. Based on this decision, laboratory work was formed in the course “RS designing”.

Análisis de las discusiones de los estudiantes en una clase de laboratorio sobre el equilibrio químico

This work studies the discussions from students in their first year of two university careers while carrying out a practical laboratory work about chemical equilibrium. The arguments constructed by the students are analyzed when they connect the experimental data and the observations with the chemical knowledge they possess. Group work was recorded in audio and videotape when students developed the laboratory class; the argumentative pattern of Toulmin was used as the instrument of analysis. One of the most relevant aspects of the classes under analysis is that students’ discussions are rare during the development of the laboratory work; on the other hand, students do not make the notion of system in equilibrium they are elaborating explicit. It can be concluded that, in general, the development of the practical laboratory work did not make the appropriate contributions to the fact that students should develop a more thorough conceptualization about what a system in chemical equilibrium is.

STANDARDIZATION OF LABORATORY METHODS

STANDARDIZATION OF LABORATORY METHODS Augustus B. Wadsworth CopyRight https://doi.org/10.2105/AJPH.10.12.932 Published Online: August 30, 2011