Motor coordination and its implications on teaching tennis to three to six-year-old children

The practice of coordinative exercises contributes not only to develop technique but also to improve decision-making quality during the game. This study presents practical possibilities to stimulate motor coordination applied to three to six-year-old children during tennis classes. The methodological proposals of the Ball School and Universal Sport Initiation focus on a general education of the individuals and defend the so-called “playing to learn” and “learning while playing”. This way, implicit learning is stimulated considering the perception of children and the conditions/restrictions of the tasks performed during practice.

Response Surface Methodology of Alcohol Production from TWR Sugar using Saccharomyces cerevisiae TISTR 5339

The aim of this research was to develop technique to produce alcohol from Thai white rice (TWR) using Saccharomyces cerevisiae TISTR 5339. TWR sugar was produced from TWR with Amylomyces rouxii TISTR 3182. Response surface methodology (RSM) was applied for investigating the experimental design for production the alcohol. There were 20 experiments involving the three investigated variables of Saccharomyces cerevisiae TISTR 5339 to amount of TWR sugar ratio, concentration of TWR sugar (% Brix) and retention time of fermentation that were studied on alcohol to optimize the condition for production the alcohol. Design of experiment was performed by application of 5-level-3-factors central composite design in order to study the optimum condition for production the alcohol. The investigated results showed that the optimum condition was 4.0 ml of Saccharomyces cerevisiae TISTR 5339 amount to 100 ml of TWR sugar amount, 20%Brix (concentration of TWR sugar) and 7 days of fermentation time.

Effects of Teaching Games on Decision Making and Skill Execution: A Systematic Review and Meta-Analysis

The question of how games should be taught is still a controversial subject. There has been a growing number of studies on teaching games and coaching sports since the first publication of Bunker and Thorpe on Teaching Games for Understanding (TGfU). In this sense, the present systematic review and meta-analysis aimed to systematically review the scientific literature about the effects of technical and tactical approach interventions on skill execution and decision making, and to examine the influence of the teacher/coach management style. A systematic literature search was carried out in accordance with PRISMA guidelines in Web of Science (WOS), PubMed (Medline), Scopus, and SportDiscus electronic databases. A total of seven and six studies were deemed to meet the inclusion criteria for decision making and skill execution, respectively. Meta-analysis results showed that tactical interventions achieved significant improvements in decision making (effect size = 0.89 with 95% confidence interval (CI) from 0.12 to 1.65), but they did not show significant improvements in skill execution (effect size = 0.89 with 95% CI from −0.45 to 2.23) compared to technical approaches. However, the heterogeneity of interventions was large and the quality of evidence was low according to GRADE. In conclusion, tactical approaches are recommended to teach games and sports in order to develop technique, understanding, tactical knowledge, and decision making, which are demanded in game play. These findings could be useful for teachers and coaches to improve these aspects of their players and students.

DEVELOPING MIND MAPPING TECHNIQUE IN TEACHING WRITING DESCRIPTIVE TEXT GRADE XI AT SMAN 1 SIBORONGBORONG

This research was aimed at develops technique as media in teaching writing descriptive texts. This study was conducted using R & D method by Borg & Gall (2003). The research took place at SMAN 1 Siborongborong. The sample consisted of class 11-XI. The evaluators of the media were two experts. The instruments employed in this study were questionnaire, interview, and test. The findings of the study were the quality of the developed technique as media viewed from the experts is very good (88 %). The final product of the technique as media was assessed by gave questionnaires to the students to know the students’ responses about the media. Most students gave positive responses. Most students said that the media was interesting and it could help them to understand descriptive texts easily. The results of the test show that the technique as media improved their ability in writing descriptive texts (average score: 80, 12).The scoring system was based on five aspects; namely content, organization, vocabulary, language use, mechanics. Therefore, the writer suggests that English teachers develop technique as one of the creative way to improve the students’ ability in writing descriptive texts.Keywords: Descriptive texts, pictures, writing.

Forecasting of placental dysfunction at women with varicose illness of the bottom extremities

The objective: to develop technique of forecasting of placental dysfunction at women with varicose illness of the bottom extremities. Materials and methods. For determination of the prognostic importance of separate indicators are analysed case histories of 155 women. The main group was made by 110 patients for whom diagnosed placental dysfunction; group of comparison – 45 patients without obstetric pathology, with the normal course of pregnancy and lack of clinical picture of placental dysfunction. We studied indicators of possible individual risk factors of development of this pathology. Were estimated 36 indicators grouped in such directions: social characteristics, reproductive anamnesis, genital and extragenital pathology. Results. Proceeding from the importance of risk factors of development of placental dysfunction it is possible to draw a conclusion about their the burdened influence on a combination to varicose illness of the bottom extremities. It is also possible to claim that existence of varicose illness of the bottom extremities at women serves as the reliable burdening factor, capable to make a systemic adverse influence on condition of hemodynamic in system vessels a mother-placenta-fetus. Conclusion. Use of an offered technique of forecasting allows to change in due time tactics of treatment-and-prophylactic actions and to reduce the frequency of obstetric and perinatal complications. Key words: placental dysfunction, varicose illness of the bottom extremities, forecasting.

Dynamics of thermoelastic frictional wear of a coating with piezoelectric interlayer

To study dynamics of a coating wear, this paper deals with an uncoupled thermoelastic contact problem on sliding of a rigid punch over the surface of a thermoelastic coating bonded to an electroelastic interlayer, which itself is bonded to an undeformable substrate. Friction, frictional heating and coating wear on the contact is taken into account. The problem solution was constructed by the Laplace integral transform method and was obtained in the form of the Laplace convolutions. Based on the obtained expressions it is possible to develop technique for monitoring of a coating wear on a sliding contact through values of electric current arising in the piezoelectric interlayer.

AN AUTOMATIC WEB-BASED QUESTION ANSWERING SYSTEM FOR E-LEARNING

An automatic web based Question Answering (QA) system is a valuable tool for improving e-learning and education. Several approaches employ natural language processing technology to understand questions given in natural language text, which is incomplete and error-prone. In addition, instead of extracting exact answer, many approaches simply return hyperlinks to documents containing the answers, which is inconvenient for the students or learners. In this paper we develop technique to detect the type of a question, based on which the proper technique for extracting the answer is used. The system returns only blocks or phrases of data containing the answer rather than full documents. Therefore, we can highly improve the efficiency of Web QA systems for e-learning.