Davi Sofyan
@unma.ac.id
Department of Physical Education
Univesitas Majalengka
EDUCATION
Bachelor of Physical Education, Healt, Sport and Recreation, the Univesitas Majalengka (2005-2009)
Master of Sport Education, the Univesitas Pendidikan Indonesia (2010-2014)
Ph.D. student of Sport Education at the Universitas Pendidikan Indonesia (2017-....)
RESEARCH INTERESTS
Physical Education
Sport & Religion
Sport Management
Bibliometric & Scientometric
Basketball
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Hanny Hafiar, Heru Ryanto Budiana, Khairul Hafezad Abdullah, Davi Sofyan, and Kholidil Amin
Informa UK Limited
Davi Sofyan, Yudha Munajat Saputra, Juntika Nurihsan, Nurlan Kusmaedi, Khairul Hafezad Abdullah, and Ejiro Uriri Osiobe
Masaryk University Press
Throughout history, many sports evolved from rituals performed at religious celebrations. In this light, it is clear that religion and sport are symbolic systems with shared values and goals. This study aims to provide a comprehensive overview of the descriptive parameters of publications by visualizing citation patterns, extracting author keywords, and determining the impact and performance of research on religion and sports. An examination of 1,408 publications indexed in the Scopus and WoS databases was carried out from 1899 to 2022. The results show that after 2015, there was a considerable increase in sports and religion publications, with Scopus publications continuing to increase compared to WoS. The United States accounts for about 457 of the total global publications. Furthermore, with 19 documents, the title of the scientific source "Games and Economic Behavior" is the most active. In 170 documents, the keyword "physical activity" appears most frequently in this analysis. The trending topic with the largest absolute growth is "physical activity," while the trending topic with the largest relative growth is "osteoarthritis." Overall, the research in this field is evolving, with the development of new methodologies and channels for communicating vital lessons about values, culturally appropriate behaviour, and health scope. This study contributes to developing new concepts in the multidisciplinary study of the relationship between sport and religion. The significance of religious values in physical activity and in injuries suffered by athletes, as well as in the psychological development of athletes, is one area that can be studied in more depth.
Davi Sofyan, Khairul Hafezad Abdullah, Ejiro Uriri Osiobe, Indrayogi Indrayogi, Rajip Mustafillah Rusdiyanto, Novri Gazali, and Yohanes Touvan Juni Samodra
Institute of Advanced Engineering and Science
This study uses scientometric analysis to comprehensively describe the descriptive parameters of publications about the relationship between sport and religion. Using ScientoPy, VOSviewer, and Biblioshiny software and datasets from two leading academic databases, Scopus and Web of Science, the current study can identify the most active scientific sources, keywords, and trending topics in sports and religion research. According to the findings, numerous types of research have been carried out on the correlation between sports and religion, and most of these papers have been published by scholars from the United States. The International Journal of the History of Sport and Sport in society has become the most active scientific journal. Furthermore, this study emphasizes the frequently utilized terms in the literature, explicitly "religion" and "sport." These keywords have protruded along with other terms that are gaining popularity in the study of sports and religion: "sports" and "muscular christianity." This information can be valuable to researchers and scholars and guide future research directions.
Jem Cloyd Tanucan, Walton Wider, and Davi Sofyan
Sergii Iermakov
Background and Study Aim. Studies on exercise as punishment (EAP) have focused on students and coaches, but less attention has been given to the perspectives of physical education (PE) teachers. This study examined the factors that influence Filipino PE teachers' intentions to use EAP. Specifically, the study examined the role of socio-demographic characteristics, attitudes, and subjective norms in predicting intentions to use EAP in PE classes. Material and Methods. A cross-sectional study was conducted to collect data from 397 PE teachers from all 16 regions of the Philippines. A researcher-made questionnaire was used to collect data on the participants' socio-demographic characteristics, attitudes, subjective norms, and intention to use EAP in their classes. Descriptive statistics and regression analysis were used to analyze the data. Results. The results showed that attitude was the strongest predictor, followed by gender (male), subjective norms, and age (over 45 years). This analysis suggests that the intention to use EAP is more prevalent among males and those over 45 years. It also shows that attitudes significantly predict these intentions. This suggests that teachers who perceive exercise as a tool for improving physical fitness and enforcing adherence to rules in a physical education setting are more likely to have such intentions. In addition, respondents with higher social pressure in employing exercise as a disciplinary measure in PE classes showed greater intentions to use EAP. Conclusions. The intention to use EAP is more prevalent among male PE teachers, those who are older, and those with positive attitudes towards exercise. Additionally, teachers who feel more social pressure to use exercise as a disciplinary measure are also more likely to intend to use EAP. These findings can be used to inform the development of PE teacher training programs and policies that promote the use of positive reinforcement and other non-punitive methods of discipline in PE classes.
Waleed A. Hammood, Afrig Aminuddin, Omar A. Hammood, Khairul Hafezad Abdullah, Davi Sofyan, and Majid Rahardi
Universitas Ahmad Dahlan
ABSTRACT
Indra Prabowo, Yudy Hendrayana, Amung Ma'mun, Berliana Berliana, and Davi Sofyan
Sergii Iermakov
Background and Study Aim. This study aims to chart the trend of publications in the Scopus database and the Web of Science as well as the global evolution of harassment and bullying in sports.
 Material and Methods. ScientoPy and VOSviewer software were used in this study to analyze the number of publications, well-known research topics, proactive authors, author keywords, preferred sources, and institutional data. This study uses data reconciliation with 1, 883 different items from the Scopus database and the Web of Science. An increasing trend in sports nutrition research was found using the Scopus and WoS databases.
 Results. This field has grown significantly since 2015. In addition, the percentage of documents published in the last two years (2020 to 2021) shows that 22.40% were published on WoS and 22.04% on Scopus. The five keywords that are trending topics between 2020 and 2021 are "Sports", "Racism", "Race", "Sexual Harassment", and "Gender". Meanwhile, the keywords with the highest total link strength were "sports" (244), "racism" (169), "bullying" (165), "adolescents" (161), and "physical activity" (150). The University of Toronto, Canada, became the most productive institution with 22 publications.
 Conclusions. The most prestigious institutes and researchers in the field of harassment and bullying research in sports have been recognized, along with key research areas, keywords, and related papers. The study also offers potential readers and researchers a global perspective on the hottest issues in harassment and bullying in sport today. In addition, it provides various analyses to assist in the organization of data for the development of harassment and bullying research theories and methodologies in strong sports.
Davi Sofyan, Khairul Hafezad Abdullah, and Novri Gazali
Academy of Sciences Malaysia
This study aims to examine the evolution of basketball-related scientific publications in the Scopus database by using a variety of bibliometric indicators, such as publication trends, the most influential countries, the most productive authors, and author keywords. From 1969 until 2021, the Scopus database registered 584 basketball publications. This review scrutinised the bibliographic results using Microsoft Excel, Publish or Perish (PoP), and VOSviewer. The production pattern fluctuated throughout the year, but after 2011 it climbed dramatically. In 2006, publications on basketball research had increased to double digits, with 11 documents. Significantly, between 2020 and 2021, 140 publications were published, with 66 in 2020 and 74 in 2021 indicating scholarly interest. The United States is the most productive country, with 210 academic works. J. Sampaio and J. Yanci were the most prolific authors. The Universidad de Granada rose to the top of the productivity rankings. This study has several limitations; the method applied in this study needs to clarify how to find, categorise, and use a database. It’s worth noting that data can also be obtained from other databases.
Davi Sofyan, Yudha Munajat Saputra, Juntika Nurihsan, Nurlan Kusmaedi, and Khairul Hafezad Abdullah
LLC OVS
Sport and fitness are physical requirements in the same way that humans require food and water. On the other hand, sport and fitness is a highly complex field of study, complicating attempts to define critical terms, resulting in a relative lack of scientometric analysis.
 The study goal is to look at the development of sport and fitness research around the world, using the Scopus and Web of Science databases as its foundation.
 Materials and methods. Publications are gathered using the Scopus and Web of Science databases as well as scientometric parameters, including worldwide publication trends, the authors who receive the most citations, the amount of citations, and author keywords.
 Results. The results show the authors’ keywords analysis was inspected based on their relationship to physical activity, physical exercise, and physical training. The United States was the most active country, with 601 publications. As expected, the United States is a leader in physical activity promotion, with 19.3 percent of the population participating in sports and exercising daily in 2019. The International Journal of Environmental Research and Public Health from Switzerland leads 68 publications, which is another noteworthy finding. Additionally, according to this analysis, Ortega, F.B., of the School of Medicine, University of Granada, Madrid, Spain, is the author who publishes the most documents with 33 in total.
 Conclusions. According to our research, the top five keywords that gained traction over the previous two years were "Cardiorespiratory Fitness," "Body Composition," "Health," "Physical Activity," and "Adolescents." The study value to the field of sports and fitness is that it provides readers and upcoming researchers with a wide range of sports and fitness trends from the past and present. Additionally, the study findings will aid future academics in predicting potential industry trends.
Davi Sofyan, Khairul Hafezad Abdullah, and Hanny Hafiar
LLC OVS
The study purpose was to look into the production of scientific publications on the Philosophy of Sports and Physical Education.
 Materials and methods. Scopus and Web of Science databases and various bibliometric indicators such as global publication trends, most active authors, number of citations, and author keywords were used to collect publications.
 Results. A total of 1103 publications on the philosophy of sport and physical education were found from 1981 to 2021. This review used data in comma-separated values (CSV) format for Scopus, which was then exported to Microsoft Excel and text documents in WoS format, as well as ScientoPy software. The research findings provide information that, from 1981 to 2021, publications experienced a fluctuating trend in quantity. Starting in 2016, publications have reached double digits, with the number of publications reaching 71 documents. The United States is listed as the most productive country with a number of published documents as high as 226 academic scientific works. Ryall, E., University of Gloucestershire, United Kingdom, became the most prolific author with a total of 33 publications. The Department of Philosophy in the United States is at the forefront of publications with 39 documents.
 Conclusions. A number of limitations in this study are unavoidable. First, the research method used by researchers is not completely perfect, including how to find documents, categorize documents, and document provider databases, which cannot be ignored. Researchers believe that this scientometric research provides important information about future research directions in the philosophy of sport and physical education.
Erastus Natanael, Agustinus Purna Irawan, D. Sofyan, and Linda Lin Chin Lin
IOP Publishing
Abstract Bamboo fiber has the potential to be developed as a natural composite material. This study aims to develop power window panel products on cars using bamboo fiber composite materials. The method used in this design is a simulation method using software to design a power window panel and to simulate the strength due to the load received. The strength of the bamboo fiber composite material used was obtained from secondary reference studies from journals. The results of the design and simulation of the strength of the power window panel show that the bamboo fiber composite material has good strength to be developed as a power window panel material. These results will be a reference in further development.
M A Noordyana, I Maryati, T S Sumartini, D Sofyan, and R Sundayana
IOP Publishing
Abstract Wingeom program is a mindtool to solve geometry problems. It is used to develop dimensional geometry frameworks. The program can help visualize geometric concepts so clearly that respondents will understand geometry concepts effortlessly. Driven by this expediency, this design base research was carried out in three stages; what to learn, how to learn, when to learn, monitor the ongoing process and evaluate what has been planned, done, and the results of the process. This research is expected to be an alternative and solution in overcoming difficulties in understanding the Geometry concepts. Five respondents were selected to participate in this study. The results of the study showed that the respondents were able to explore, observe, and perform animated images and dimensional geometry material.
B Basuki, S Sukono, D Sofyan, S S Madio, and N Puspitasari
IOP Publishing
Abstract In this paper we discuss the issue of linear algebra on the investment portfolio optimization models. It was assumed that stock returns are analyzed have a certain distribution, so that the mean and variance and covariance between the separation can be determined. Return of some stock used to form a vector averaging, and the number of shares used as the basis to form a unit vector. While the variance of each stock as well as the covariance between stocks, is used to form a covariance matrix. The investment portfolio was formed consisting of several stocks, in order to maximize the expected return and minimize risk. The portfolio optimization was performed using linear algebra approach. The result is a formula used to determine the optimum composition of the portfolio weights. The resulting formula is very useful for the analysis of the investment portfolio optimization.
I Maryati, T S Sumartini, M A Noordyana, D Sofyan, and S S Madio
IOP Publishing
Abstract Analysis toolpak is very useful for a problem related with matrix material the purpose of this research article is to analyze the effectiveness of using the ToolPak analysis on matrix algebra. The method of this study is an experimental method with quasi-experimental design. The sample in this study took 27 students at the first years of the one at a private college in Indonesia. The results of processing data show that the value tcount equal to 9,207 and then the value (2-tailed) equal to 0,000 smaller than alpha 0.05 so that Ho is rejected. As the implication from this study the use of effective ToolPak analysis to improve students mathematical reasoning abilities in matrix algebraic material