Data security can be done with many techniques such as steganography and cryptography, the use of cryptographic algorithms such as Vigenere Cipher and One Time Pad to secure the data is expected to make the data difficult to be known by irresponsible parties, the test obtained results that the ciphertext results of different combinations and strong enough because the key used must match the length of the plaintext.
This study aims to improve the competence of takraw learning lectures and assist in the field of sports science, especially in the sport of sepak takraw. The media developed in the form of learning applications that are used as teaching materials in online and face-to-face learning.The learning application contains lecture materials in each face-to-face amount in the form of lecture descriptions, video variations of learning, quizzes, and other instructions that support the online learning process. This idea emerged when researchers felt the need to solve problems in the form of student difficulties in mastering learning competencies and as an alternative to learning even though they were not face to face and practiced directly during the ongoing corona virus pandemic. The research method used is a quantitative approach and uses the Research & Development (R & D) method from Sugiono by developing products, testing the effectiveness of products that achieve the desired goals. Outcomes and achievements in this research include conducting reputable international journals indexed by Skopus or Web of Science (Submit/Accepted/Published), appropriate technology, textbooks and speakers at international scientific meetings.
Learning with a multilateral approach presents the basics of sports movements in children through adjusting children's abilities to the movement techniques, equipment and rules used as well as with pleasant variations. Movement technique means that children are not required to make technical movements like in real sports, but what is important is the basic aspects of simple biomechanics. Multilateral development is a comprehensive development in the phase of children (Childhood) associated with the development of various physical conditions and sports skills as a foundation towards special development (specialization) and high achievement, but that in Indonesia there are still many physical education educators who have not seen children as children both in terms of size and physical and mental abilities. The objectives to be achieved in this study are to improve the quality of learning in aquatic sports on an ongoing basis. Targets to be achieved are produced in the form of a standard model of aquatic sports learning through a multilateral approach, model procedure manuals and work instructions can be used as targets or references for each variable in the development of aquatic sports for all sport stakeholders. The method used is Research and Dependovment (Borg and Gall: 1989) or development research which is grouped in 3 stages, namely (1) Pre-Development Phase includes; analysis of needs and preparation of model documents, (2) Development Phase includes, development of aquatic sports learning models through multilateral approaches and their evaluation instruments through FGD, followed by small sample trials, large group trials and (3) implementation stages include; implementation of aquatic sports learning models to the object of research, namely schools or associations of fostered aquatic sports.
The purpose of this research is to describe the vibration sensor media as a learning medium for sprint competitions for blind children and to assist teachers and students in learning using vibration sensor media. This research was conducted in several steps, namely: identifying potentials and problems, gathering information, product design, product manufacturing, expert validation, product revision, testing, final production. This vibration sensor media as a learning medium for sprint competitions was first validated by material experts and media experts. Product trials were carried out on blind children in DPD Pertuni Medan with a population of 6 respondents. The small group test was 2 respondents, while the large group test was 6 respondents. This type of data collection used a questionnaire instrument. The results showed that the vibration sensor that has been made for learning sprint competitions was feasible. These results were obtained from the validation results of a) material experts at 92.5% or very feasible; b) media expert of 86.66% or Very feasible; c) small group trial of 92.5% or very feasible; d) large group trial with a result of 95% or very feasible. The vibration sensor media has been declared fit to use as a learning media for vibration sensor media.
The purpose of this study was to find out how far the motivation of Physical Education, Health, and Recreation (PEHR) students in Indonesia in carrying out physical activities during this transition period from two (2) years of no face-to-face learning by carrying out direct physical activity practices. The method used in this study is a survey by collecting data using questionnaires and questionnaires, as well as to analyze quantitative data used descriptive statistics, namely analysis of percentages and averages. The results of the study showed that the motivation of PEHR students to move after the transition from pandemic to endemic had positive results.
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