THE INFLUENCE OF KINESTHETIC PERCEPTION, HAND-EYE COORDINATION, AND SELF-CONFIDENCE ON STROKE DRIVE SKILLS IN BADMINTON GAME

This study aims to reveal the direct and indirect effects, as well as the simultaneous effect of exogenous variables on endogenous variables. The sample in this study were 30 beginner athletes of Gold Badminton Club and Sarwendah Badminton Club Jakarta. The research approach used in this study is an associative quantitative approach, a survey method with a test technique. The data analysis technique used a path analysis approach (path analysis). Data were analyzed by path analysis through structural model testing at = 0.05. The results showed that: 1) there was a direct kinesthetic effect on the badminton game's ball drive skills of 0.438, 2) there was a direct effect of eye-hand coordination on the badminton game's ball drive skills of 0.208, 3) there was a direct influence of self-confidence on the ball drive skills badminton game is 0.336, 4) there is a direct kinesthetic effect on self-confidence which is 0.237, 5) there is a direct effect of eye-hand coordination on self-confidence which is 0.199. From the analysis of the direct and indirect effects, it can be concluded that the biggest influence is the direct effect of kinesthetic coordination on the badminton game's repulsive drive skills of 0.438.

Different Effects of Live Demonstration and Video Demonstration Learning Models on the Performance of the Tennis Service Biomechanics Review from Eye-Hand Coordination

This study aims to determine: (1) The difference in the effect of live demonstration and video demonstration exercise models on the biomechanics performance of court tennis service, (2) Differences in the performance of tennis service biomechanics between players who have high and low eye-hand coordination, (3) Effect of interaction between exercise model and eye-hand coordination on the performance of tennis service biomechanics. This study used an experimental method with a 2 x 2 factorial design. The population in this study were all 12 players of the male KKO SMPN 1 Surakarta. The sampling technique used is saturated sampling, the size of the sample taken is 12 players. The data analysis technique in this study used ANOVA. Before being tested with ANOVA, first using the prerequisite test of data analysis with sample normality test (Lilliefors test with = 0.05 %) and homogeneity test of variance (Bartlett test with = 0.05 %). Based on the results of the study, it can be concluded as follows: (1) there is a difference in the effect of live demonstration and video demonstration exercise models on the performance of tennis service biomechanics. The effect of the live demonstration exercise model is better than the video demonstration exercise model, (2) there are differences in the biomechanics performance of court tennis service between players who have high and low eye-hand coordination. The biomechanics performance of court tennis services on players who have high eye-hand coordination is better than players who have low eye-hand coordination, (3) there is an interaction between training models and eye-hand coordination on the biomechanics performance of court tennis services. Players who have high eye-hand coordination are more suitable if given a live demonstration exercise model. Players who have low eye-hand coordination are more suitable if given a video demonstration exercise model.

RT-ZooKeeper: Taming the Recovery Latency of a Coordination Service

Fault-tolerant coordination services have been widely used in distributed applications in cloud environments. Recent years have witnessed the emergence of time-sensitive applications deployed in edge computing environments, which introduces both challenges and opportunities for coordination services. On one hand, coordination services must recover from failures in a timely manner. On the other hand, edge computing employs local networked platforms that can be exploited to achieve timely recovery. In this work, we first identify the limitations of the leader election and recovery protocols underlying Apache ZooKeeper, the prevailing open-source coordination service. To reduce recovery latency from leader failures, we then design RT-Zookeeper with a set of novel features including a fast-convergence election protocol, a quorum channel notification mechanism, and a distributed epoch persistence protocol. We have implemented RT-Zookeeper based on ZooKeeper version 3.5.8. Empirical evaluation shows that RT-ZooKeeper achieves 91% reduction in maximum recovery latency in comparison to ZooKeeper. Furthermore, a case study demonstrates that fast failure recovery in RT-ZooKeeper can benefit a common messaging service like Kafka in terms of message latency.

The Analysis of Fine Motor Skills and Early Childhood Creativity through Weaving Activities

Fine motor improvement is exceptionally critical for a child's in general advancement. Early childhood still frequently have trouble moving their fingers for exercises such as cutting, drawing, coloring, tearing, collapsing, orchestrating and weaving. This consider points to portray the capacity of fine motor abilities and inventiveness of early childhood through weaving exercises. The investigate strategy utilized may be a writing survey conducted by collecting information or based on logical papers that interface investigate with existing writing to unravel a issue. The strategy of collecting library information is by perusing and taking notes and overseeing inquire about materials and after that concluding the investigate materials. The comes about appeared that the improvement of fine motor abilities and imagination in early childhood requires eye and hand coordination, such as performing manipulative developments, and communicating themselves through craftsmanship with weaving exercises.

Treatment of Congenital Hypothyroidism: Comparison Between L-Thyroxine Oral Solution and Tablet Formulations up to 3 years of age

Objective. Oral solution and tablet formulations of Levo-Thyroxine (L-T4) are both used in the treatment of Congenital Hypothyroidism (CH). However, few studies and with a limited follow-up period have been published comparing these two formulations in children. Design. The aim of this multicenter study was to compare the effectiveness of L-T4 oral solution (with ethanol as excipient) and tablet formulation in children with CH up to 3 years of age. Methods. Children diagnosed with CH between 2006 and 2015 were enrolled and divided into two groups according to the L-T4 formulation used: solution in drops (Group D) or tablets (Group T). Auxological parameters, TSH and FT4 values and L-T4 dose were collected at diagnosis and at 15 days, 1, 3, 6, 12, 24 and 36 months of treatment. The Developmental Quotient at 1 and 3 years of age was evaluated using Griffiths’ Scale. Results. 254 children were enrolled. 117 were treated with solution and 137 with tablets. Auxological parameters, dose and thyroid function values at diagnosis, 3, 6, 12, 24, 36 months were not significantly different. TSH at 15 days (p=0.002) and 1 month (p=0.009) was significantly reduced in group D. At 2-year follow-up, median TSH was significantly lower in group T (p=0.03). No statistical difference was detected between the median Developmental Quotient, however group D showed lower values in the language subscale at 12 months and in eye-hand coordination at 36 months. Conclusions. Both therapeutic strategies are effective on treatment of CH. A higher risk of overtreatment in the first months of therapy seems to be associated with oral solution L-T4; therefore, a different strategy should be considered when starting and adjusting the dose. No negative effects in cognitive development were observed. The data obtained are encouraging but long-term follow-up is needed.