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2022 ◽  
Vol 28 (1) ◽  
pp. 14-16
Author(s):  
Wei Zong

ABSTRACT Introduction: Brief introduction: Taekwondo is a sport that integrates explosive power and reaction speed. The reaction speed of the athletes has a direct bearing on the result of the competition. Objective: To improve the reaction time effect of athletes. Methods: Forty-one Taekwondo team athletes were selected as the research subjects. Then, the training methods were introduced, and special technology using an emg tester and a synchronous camera system was implemented to analyze the earliest emg signals and the moment of the hit, the time from signal emergence to the emg reaction for reaction time, and from signal emergence to hit for the total time. Results: The average score of the 41 athletes before the test was 0.282673,with standard deviation of 0.0377349 and standard error of 0.0058932. The average score, standard deviation, and standard error of the 41 athletes after small training were 0.28217, 0.037744 and 0.005895. Conclusions: From the test results of the three training modes, the small training mode had a significant impact on the reaction time of Taekwondo athletes, while the medium and large training modes did not have significant effects. The results show that a small amount of training is best and plays a significant role in improving the reaction of an athlete. Level of evidence II; Therapeutic studies - investigation of treatment results.


Neutron ◽  
2022 ◽  
Vol 21 (2) ◽  
pp. 74-79
Author(s):  
Maria Madalena De Jesus Soares ◽  
Kurniawan

Occupational Safety and Health is the program to protect workers from the dangers of work accidents and occupational diseases that may occur during work. This study was conducted to determine the implementation performance of occupational safety and health program, to find out the obstacles during the implementation occupational safety and health programs, as well as labor laws and regulations relating to OSH on construction projects in Dili Timor Leste. This study collected data by distributing questionnaires to employees who work on the four (4) ongoing construction projects in Dili. Data analysis was carried out on Microsoft Excel which further processed the data using the mean count to determine the average value of the questionnaire and the standard deviation. This study found that the project in Dili has implemented the Occupational Safety and Health program. This can be seen from the overall results of the analysis with a mean value of 4.49 and a standard deviation of 0.473. From these results, it can be concluded that every construction project company prioritizes the implementation of OHS. The second result is the obstacles in applying OHS; from the analysis results show that the barriers from the worker side are rank 1 with a mean value of 2.90 and a standard deviation of 0.925. It can be concluded that many obstacles in implementing the OSH program occur from the workers' side due to the lack of awareness and knowledge of workers about OSH in working on construction projects. The result of the third analysis is Timor Leste's labor laws and regulations. The results of the analysis show that it is sufficient for companies to apply Law no. 4/2012 on employment in the areas of security, hygiene and health in the workplace.


Author(s):  
James Okorocha

Abstract: The effect of population growth on urban housing is a global challenge but the worst examples are found in the developing world which has led to an increased growth of poorly planned cities in the developing world, and loss of aesthetics. The aim of this research is to assess the level of population pressure on urban housing within Ngwa Road, Ohanku and Obohia environs in Aba South local government area in Abia State. The research evaluated housing demand and supply in the area, condition of houses in the area, factors encouraging population growth in the study area and level of compliance of buildings with town planning laws. The study area has an estimated 2021 population of 138017 as projected from 88,951 in 2016 with a growth rate of 2.94%. The research data was collected through household survey, Aba South Town Planning Authority, National Population Commission and the Aba South Street Naming and House Numbering Office. The simple random sampling technique and the purposive sampling technique were employed by the researcher with a sample size of 399.9 at 0.05 confidence level which was determined using the Taro Yamane method for sample size collection. The Principle Component Analysis (PCA), Principle Component Regression (PCR), standard deviation, weighted mean, percentages/proportions to analyze the data collected. The Principal Component Analysis result showed that component I have the highest loading with eigen value of 6.721 while component II has an eigen value of 3.279. The result showed that ease of access to commercial activities and educational level of heads of households are major factors encouraging population growth in the study area. The research revealed a housing demand and supply cluster estimate of 60.11% which was not considered statistically high. The average response of 93.2% is that houses in the study area are in a poor condition. The Aba South town planning authority revealed a 0.741 standard deviation which shows a high level of non-compliance with town planning laws. The research hypothesis was tested using Spearman Rank Correlation test at 0.05 level of confidence and the null hypothesis was accepted. Looking at the Land-UseLand-Cover images of the area obtained for 3 epochs from 1980-2020, the study area experienced an major growth in rate of housing stock after year 2000 and with increasing population growth, the area may soon be unable to carry the population that will be found there. This research calls the attention of the Abia State government in particular and the federal government in general to address these challenges through recommended public-private partnership and decentralization of pull factors. These recommendat


2022 ◽  
Vol 9 (1) ◽  
pp. 258-277
Author(s):  
Ahmad Sugianto ◽  
Eri Kurniawan ◽  
Didi Sukyadi

Intercultural sensitivity and personality traits constitute eminent and inseparable elements associated with EFL learning. Nevertheless, to the best of the writers’ knowledge, limited investigations in an Indonesian EFL primary school level concerning these two variables were found; therefore, the present study was intended to scrutinize the Indonesian EFL primary school students’ intercultural sensitivity and personality traits. 96 students from the fourth, fifth, and sixth grades of one primary school in Bandung were involved. An embedded design of a mixed-method was employed. The data were garnered using 4-Likert scale questionnaires gauging the students’ intercultural sensitivity and their personality traits focusing on extroversion, followed by some open-ended questions. The findings revealed that students’ intercultural sensitivity was considered good (the mean of 80.06 and standard deviation of 8.50), and most students tended to be extroverted (the mean of 72.62 and the standard deviation of 9.89). The students’ intercultural sensitivity was found to be significantly related to their extroversion at a 99% level of confidence (.000 .01). Finally, the findings along with the previous studies explicating the intercultural sensitivity and personality traits advocate some pedagogical implications for facilitating students’ English learning. 


2022 ◽  
Vol 14 (1) ◽  
Author(s):  
Xiaoli Ren ◽  
Zhiyun Wang ◽  
Congfang Guo

Abstract Objectives Long-term glycemic variability has been related to increased risk of vascular complication in patients with diabetes. However, the association between parameters of long-term glycemic variability and risk of stroke remains not fully determined. We performed a meta-analysis to systematically evaluate the above association. Methods Medline, Embase, and Web of Science databases were searched for longitudinal follow-up studies comparing the incidence of stroke in diabetic patients with higher or lower long-term glycemic variability. A random-effect model incorporating the potential heterogeneity among the included studies were used to pool the results. Results Seven follow-up studies with 725,784 diabetic patients were included, and 98% of them were with type 2 diabetes mellitus (T2DM). The mean follow-up duration was 7.7 years. Pooled results showed that compared to those with lowest category of glycemic variability, diabetic patients with the highest patients had significantly increased risk of stroke, as evidenced by glycemic variability analyzed by fasting plasma glucose coefficient of variation (FPG-CV: risk ratio [RR] = 1.24, 95% confidence interval [CI] 1.11 to 1.39, P < 0.001; I2 = 53%), standard deviation of FPG (FPG-SD: RR = 1.16, 95% CI 1.02 to 1.31, P = 0.02; I2 = 74%), HbA1c coefficient of variation (HbA1c-CV: RR = 1.88, 95% CI 1.61 to 2.19 P < 0.001; I2 = 0%), and standard deviation of HbA1c (HbA1c-SD: RR = 1.73, 95% CI 1.49 to 2.00, P < 0.001; I2 = 0%). Conclusions Long-term glycemic variability is associated with higher risk of stroke in T2DM patients.


Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 538
Author(s):  
Qinghe Zhang ◽  
Tianle Zheng ◽  
Xiaorui Wang ◽  
Zhiyuan Fang

The accuracy of the monitoring information is particularly important for exploring fractured rock mass deformation and failure mechanisms and precursor characteristics. Appropriate monitoring methods can not only timely and effectively reflect the failure laws of fractured rock masses but also play an early warning role. To explore more reasonable monitoring methods, uniaxial compression experiments and real-time non-destructive monitoring on prefabricated fractured rock specimens through DIC, AE, and IRT were conducted; the strain field, temperature field, ringing frequency, standard deviation, etc. were analyzed; and correlation between the three methods in the information of audience was explored. The results show the following. (1) The failure evolution process of fractured rock mass can be divided into four stages. DIC can detect the initiation and propagation of cracks near the fractures of the specimen at the earliest stages. (2) The order of occurrence of precursor phenomena in multi-source monitoring information is different, which is vertical strain field > shear strain field > horizontal strain field > temperature field > ringing times. (3) The dispersion degree of standard deviation of each field is obviously different; the infrared temperature field is greater, but the strain field and temperature field show the same trend. (4) There are obvious precursors before the specimen is on the verge of instability; acoustic emission detected two consecutive increases in the cumulative number of ringing before destruction, which means the most obvious precursors. The research results can provide a theoretical basis for the precursory information capture and damage early warning of the fractured rock mass destruction process.


Author(s):  
Saeedeh Mehrabi ◽  
Sahar Khanjani Veshki

Introduction: Marital satisfaction is one of the most important signs of a favorable relationship between couples. This research aimed to survey the effectiveness of training using Bowen's family therapy approach on marital satisfaction of married women in the city of Aligodarz (In the west of Iran). Method: This study was a quasiexperi mental study using a pretest-posttest design with a control group. The statistical population consisted of counseling applicant married women in the city of Aligodarz in 2019. By convenience sampling, 30 married women were selected and participated in this study. After recording the subjects' scores in the pre-test stage, the experimental group was exposed to the intervention (training course), but no operations were performed on the control group. Data gathering was carried out using a demographic questionnaire and ENRICH marital satisfaction scale. Frequency, percentage, mean and standard deviation indices were used to describe and Chi-square test was used to examine the homogeneity of the two groups in terms of study variables and multivariate analysis of covariance were performed in SPSS 24 software with a significancel level of 5%. Results: Descriptive findings showed that the mean (standard deviation) of the total score of the marital satisfaction variable in the pre-test and post-test stages was 131.60 (26.89) and 142.81 (25.24) in the experimental group and 132.66 (24.09) and 132.26 (21.92) in the control group, respectively. The inferential findings showed that Bowen's family therapy approach has a significant effect on some of the dimensions of marital satisfaction (religious orientation, equality of women and men, children and parenting, sexual relation, financial management, conflict resolution, and marital satisfaction) (p< 0.05). On the other hand, this approach was not practical in improving other aspects of marital satisfaction (relationship with family and friends, leisure time, marital relationship, personality issues, and contractual responses) (p> 0.05). Conclusion: The present study results showed an increase in marital satisfaction of married women using the Bowen family therapy approach. Therefore, it is recommended to use Bowen's family therapy approach to improve women's marital satisfaction with family problems.  


2022 ◽  
Vol 6 (2) ◽  
pp. 91-100
Author(s):  
Jamaludin Jamaluddin ◽  
Dian Nisa Istofa ◽  
Bety Suremi

This research aims to find out the magnitude of the influence of the principal's leadership on the motivation of teacher work in the Private MA Nururrodhiyah Kota Jambi. This research is a quantitative study using correlational research design, while data analysis techniques use normality and product moment correlation tests. The results of this study found that the sample of principals in 20 teachers who were sampled obtained an average score of 70, a median of 72,625, a mode of 72 with a standard deviation of 13,265. While the results of teacher work motivation from the data obtained an average score of 77.8, median of 77.5, mode of 74.5, and standard deviation of 27.72. The product moment correlation test rxy = 0.976 is greater than rtabel so it is known that at the significance level of 5% = 0.444 and at the significance level of 1% = 0.561 then Ho was rejected and Ha accepted.


2022 ◽  
Author(s):  
Chengkun Gan ◽  
Jiayu Hu ◽  
Xiaomin Luo ◽  
Chao Xiong ◽  
Shengfeng Gu

Abstract. GNSS radio occultation (RO) plays an important role in ionospheric electron density inversion and sounding of sporadic E layers. As the China's first electromagnetic satellite, China Seismo Electromagnetic Satellite (CSES) has collected the RO data from both GPS and BDS-2 satellites since March 2018. In this study, we extracted the carrier to noise density ratio (CNR) data of CSES and calculated the standard deviation of normalized CNR. A new criterion is developed to determine the Es events, that is when the mean value of the absolute value of the difference between the normalized CNR is greater than 3 times of the standard deviation. The statistics show that sporadic E layers have strong seasonal variations with highest occurrence rates in summer season at middle latitudes. It is also found that the occurrence height of Es is mainly located at 90–110 km, and the period of local time 15:00–18:00 is the high incidence period of Es. In addition, the geometric altitudes of a sporadic E layer detected in CSES radio occultation profiles and the virtual heights of a sporadic E layer obtained by the Wuhan Zuo Ling Tai (ZLT) ionosonde show four different space-time matching criterions. Our results reveal that there is a good agreement between both parameters which is reflected in the significant correlation.


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