Tarumanagara University Research Articles

Antioxidant Capacity, Toxicity, Phytochemicals, Total Alkaloids and Phenolic Levels Bamboo Shoot Extract ( Bambusa vulgaris )

The imbalance between reactive oxygen species (ROS) and endogenous antioxidants can cause various diseases, so exogenous antioxidants from plants such as bamboo shoots (Bambusa vulgaris) are needed. This study explored the antioxidant capacity, toxicity, and phytochemical content of bamboo shoot extracts. Using an in vitro experimental design, we analyzed bamboo shoot extracts for phytochemical content, antioxidant capacity using the DPPH method, and toxicity using the Brine Shrimp Lethality Test (BSLT). The research was conducted from December 2020 to June 2021 at the Biochemistry and Molecular Biology Laboratory, Tarumanagara University. Data were analyzed using Graph Pad Prism V.8 software with the level of significance set at p<0.05. Phytochemical test results showed the presence of alkaloids, anthocyanins, betasianins, cardiac glycosides, coumarins, flavonoids, glycosides, phenolics, quinones, saponins, terpenoids, and tannins. The bamboo shoot extract showed antioxidant capacity with IC50 value of 673.54 µg/mL, total phenolic content of 2923.65 µg/mL, and total alkaloid content of 7.34 µg/mL. The toxicity test showed an LC50 value of 362.16 µg/mL. The bamboo shoot extract showed potential as an antioxidant and anti-mitotic agent, although its antioxidant capacity was lower than that of ascorbic acid. The presence of various secondary metabolites contributes to its bioactive properties. Further research is needed to explore its potential applications in preventing diseases caused by free radicals. Bamboo shoot extract contains significant amounts of phenolic compounds and other phytochemicals, which exhibit antioxidant and toxic properties, making it a potential natural source for antioxidant agents.

Description of Skin Hydration Levels and Allergic Contact Dermatitis in Students Using Hand Sanitizer at the Faculty of Medicine, Tarumanagara University Class of 2021

Description of Skin Hydration Levels and Allergic Contact Dermatitis in Students Using Hand Sanitizer at the Faculty of Medicine, Tarumanagara University Class of 2021

Gambaran Tingkat Aktivitas Fisik Dan Tingkat Kebiasaan Merokok Pada Mahasiswa Kedokteran Universitas Tarumanagara Angkatan 2021-2022

Smoking and lack of physical activity are major public health problems, especially among medical students. The aim of this research is to determine the level of physical activity and level of smoking habits among medical students at Tarumanagara University class of 2021-2022. This research is a descriptive observational type and the design used is cross-sectional. Sampling was carried out using non-random sampling, consecutive sampling type. Data collection regarding gender, age, weight, height, physical activity level and level of smoking habits was carried out by carrying out direct measurements and questionnaires to research subject respondents who met the inclusion criteria from the period February-March 2024. The questionnaire was used to measure activity levels physically using the International Physical Activity Questionnaire Short Form (IPAQ-SF). Measuring the level of smoking habits using the Brinkman index questionnaire. The research results showed that the age range of respondents in this study was 18-23 years with a mean of 20.03 years. Respondents who smoked were 38 (62.3%) students and 23 (37.7%) students who did not smoke. The description of the low level of physical activity of Tarumanagara University Medical students was 32 (52.5%) students, 20 (32.8%) students with moderate physical activity and 9 (14.8%) with high physical activity. The level of smoking habits among Tarumanagara University Medical students was low at 59 (96.7%) students and 2 (3.3%) had moderate levels of smoking.

THE HOLISTIC LEARNING MODEL OF BUSINESS ETHICS TO DEVELOP SPIRITUAL WELL-BEING

The purpose of this study is to investigate the impact of the holistic learning model of Business Ethics on the students’SWB. Two business ethics classes are randomly chosen as sample from all business ethics classes of Management Study Program, Tarumanagara University, Jakarta. The study uses a quasi-experimental design “pre-test-post-test design with one group”, in which the learning model is the independent variable and the students’ SWB is the dependent variable. The testing of hypothesis uses the SWB’s score mean differences of a paired sample t-test. The results of this study show that the holistic learning model of Business Ethics gives a significant impact on the quality improvement of the students’ SWB, both overall and on all four dimensions of SWB: communal, personal, transcendental, and environmental. Three dimensions: communal, transcendental, and environmental influence at a significant level of 5%; and one dimension (personal) has an effect on a significance level of 10%.

The Effect of Academic Stress, Burnout, and Class Engagement, on Cyberloafing Behavior in UNTAR Students

Nowadays, human life cannot be separated from technology, especially the internet. The internet helps human activities, so the internet is needed, but with the presence of the internet, humans abuse the internet provided. This phenomenon is known as cyberloafing. Cyberloafing is a form of internet abuse behavior during working hours. Cyberloafing behavior itself is influenced by several variables. The variables examined in this research that influence cyberloafing are academic stress, class engagement, and burnout. This research was conducted with the aim of finding out whether the variables of academic stress, class engagement, and burnout influence a person's cyberloafing behavior. In the process of collecting research data using the Simple Random Sampling (SRS) technique by submitting questionnaires online via WhatsApp, Line and Discord with Google Form. The sample chosen was students studying at Tarumanagara University, with 371 participants studying at Tarumanagara University. The results of this research show that the class engagement and academic stress variables have a positive and significant effect, but the burnout variable has a positive and insignificant effect on cyberloafing behavior. So from this research it can be concluded that academic stress and class engagement variables influence students to carry out cyberloafing

SELF-REGULATED LEARNING AND ACADEMIC STRESS IN MEDICAL SCHOOL: ARE THEY RELATED?

Background: During the transition to higher education, many students experience stress due to the process of adapting to a new educational and social environment. Excessive or negative stress may lead to physical and psychological reactions, such as persistent lack of energy, loss of appetite, headaches, gastrointestinal problems or signs of emotional distress. It may be theorized that students who are more proficient at self-regulated learning would display problem solving coping strategies when dealing with academic demands, therefore reducing perceived levels of academic stress. This study aims to explore any statistically significant relationship between the levels of self-regulated learning and academic stress. Methods: The study is a cross-sectional, observational analytic study with a sample size of 222 respondents obtained from medical students at Tarumanagara University. Results: The majority of respondents (80.6%) experienced moderate academic stress, although statistical analysis shows no statistically significant relationship between self-regulated learning and academic stress. Conclusions: Further research should be done on the cross-cultural applicability of the concepts of self-regulated learning. Medical educational institutions should implement learning and lecture strategies that promote emotional and mental wellness among students as an approach to reduce the levels of academic stress.

The Influence of Institutional Environment, Experience, and Education on Social Entrepreneurship

Social entrepreneurship is an economic field that aims to provide social benefits to the surrounding community, especially in terms of improving welfare through innovation and the application of entrepreneurial concepts so that it has economic value, therefore social entrepreneurship plays an important role in advancing the country's economy. In social entrepreneurship, several approaches are applied, namely practical, innovative, and sustainable approaches that can certainly have a positive impact on the lower economic class or underprivileged communities. As is known, every aspect, including social entrepreneurship, must have factors that affect its sustainability, both factors that encourage an increase in social entrepreneurship intentions support the creation of social entrepreneurship or inhibit factors that hurt social entrepreneurship. For this reason, this quantitative research aims to find out things that affect social entrepreneurship, especially whether, the institutional environment and education have a positive influence on entrepreneurship. This research was conducted on students at Tarumanagara University, sampling was carried out using purposive sampling techniques so that the samples taken could be by the purpose of the study, namely provided that respondents had passed entrepreneurship courses which later data collection would be carried out through questionnaires, then the data would be processed using the help of smart PLS. The results showed that there was a positive and significant influence between the institutional environment and social entrepreneurship. There is a positive influence between education and social entrepreneurship.

KINERJA KARYAWAN DITINJAU DARI KEPUASAN KERJA DAN KOMITMEN ORGANISASI

Employee performance is very important aspect for every organization. Employee performance is determined as the achievements obtained by employees both qualitatively and quantitatively. The aim of this research is to examine the role of job satisfaction and organizational commitment on the performance of motor vehicle claims employees at PT. CAI. Job satisfaction is the result of employees' thoughts and feelings which describe the importance or unimportance, likes or dislikes of the employee's assessment of their work. Meanwhile, organizational commitment is an individual's interest in the values and goals of the organization. Data was taken from (N=25) motor vehicle claims officers using measuring instruments from Faculty of Psychology, Tarumanagara University. The research results show that job satisfaction does not have a significant effect on performance. Organizational commitment also shows no significant effect on performance. This research is very important to enrich theoretical studies of specific factors that influence employees
 
 Keywords: Job Satisfaction, Organizational Commmitment, Employees Performance

The Relationship between Physical Activity and Sleep Quality for Class 2020 Students Faculty of Medicine Tarumanagara University

<div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><em>Sleep is one of the basic needs of every human being. Disturbance to the quality of sleep can cause various problems such as a person's disruption in following lessons and low memory. Not only academics will be disrupted, but health will also be disrupted. Someone who has good quality sleep will be more focused on doing something than someone with bad quality. </em><em> The purpose of this study was to determine whether there is a relationship between physical activity and the quality of sleep of students at the Faculty of Medicine, University of Tarumanagara. </em><em>This research is a quantitative analytic research with a cross-sectional research design.</em><em> </em><em>This research was conducted in Faculty Of Medicine, Tarumanagara University, This research data collection activity took place in January 2022 until completion</em><em>. </em><em>The population in this study is all </em><em>Students of the Faculty Of Medicine, Tarumanagara University. The total sample in this study was 140 people</em><em>. </em><em>The sampling method of this study is means of simple random sampling. Data collection in this study used the Global Physical Activity Questionnaire (GPAQ) questionnaire and the Pittsburgh Sleep Quality Index (PSQI) questionnaire. Data analysis used with the Chi-Square test. The results of the study showed that there was a significant relationship between physical activity and sleep quality for students of the Faculty of Medicine, Tarumanagara University, class of 2020 (p-value = 0.000; <α 0.005). It is recommended to students of the Faculty of Medicine, Tarumanagara University to improve their health status through diligent regular physical activity and quality sleep in order to increase their level of physical fitness. Oleh Therefore, students need to learn to manage time for academic and non-academic activities, as well as regular breaks and sports.</em></p><p><em><br /></em></p></td></tr></tbody></table></div><strong><em>Keywords: Physical Activity, Sleep Quality, Student</em></strong>

Gambaran Acadaemic Self-Efficacy Pada Siswa Sd N X Tamansari, Lelea, Indramayu, Jawa Barat

This study aims to describe the academic self-efficacy of students at SDN X Taman Sari, Lelea District, Indramayu Regency, West Java. This research was conducted on 148 male and female students aged 9-13 years from grades 4-6 elementary school. The measuring instrument used in this academic self-efficacy research is part of the measuring instrument for the Faculty of Psychology, Tarumanagara University in 2015 in Indonesian. Through correlation analysis techniques with the SPSS version 25 program. It was found that the dimensions of the highest level were compared to the dimensions of generality and or strength. In addition, based on analysis of additional data, it can be concluded that there are differences in the level of academic self-efficacy in terms of gender. 
 Keywords: academic self-efficacy, self-efficacy, elementary students

SISTEM INFORMASI UNIT KEGIATAN MAHASISWA (UKM) UNIVERSITAS TARUMANAGARA BERBASIS WEB

The Information System of activity unit or UKM at Tarumanagara University on the Web-Based is an application designed to make easier for student to get all information about UKM so that more people are know and register their self to UKM’s new members and also help UKM to disseminate information and introduce their activities to all students at Untar. The Website uses the Waterfall System Development Life Cycle (SDLC) development methodology. The database used in this application is MySQL. The programming languages used are HTML, PHP and Boostrap Framework. The results of user testing of the application show that the application can be understood and can be used easily

Penapisan Hiperuresemia dan Obesitas Pada Remaja di Jakarta Barat

Hyperuricemia is a pathophysiological condition associated with chronic inflammatory diseases such as rheumatoid arthritis, diabetes, and cardiovascular and kidney disease. Hyperuricemia is related to changes in lifestyle. Elevated serum uric acid levels can be a marker for the metabolic syndrome that commonly occurs in adults. Obesity is a complex condition involving biological, developmental, environmental, behavioral and genetic factors. The most common cause of obesity during adolescence is an imbalance in energy balance; i.e. excess caloric intake without appropriate caloric expenditure. Tomang sub-district is a sub-district under the Faculty of Medicine, Tarumanagara University. More than 25% of adults in the Tomang sub-district have hyperuricemia and 60% of the community are obese. So far it is not known how much the prevalence of hyperuricemia and obesity in adolescents in the Tomang Village. The promotion of healthy lifestyles and the prevention of disease are the fundamental principles behind public health and the promotion of public health. Measuring uric acid levels can prevent acute attacks of gout. The purpose of this service is to get an overview of the uric acid levels and obesity of the youth group in Tomang Village, West Jakarta

DO HEDONISM LIFESTYLE AND FINANCIAL LITERACY AFFECT TO STUDENT’S PERSONAL FINANCIAL MANAGEMENT?

The purpose of this study was to determine the effect of Hedonism Lifestyle and Financial Literacy on Students' Personal Financial Management. The sample in this study was all university students, which in the end used the convenience sampling method to select the sample so that a sample of 81 students from the 2018 class of Faculty of Ecconomics and Business Tarumanagara University. The data analysis technique used is Structural Equation Modeling (SEM) employed by the Smart-PLS program. The results of this study are hedonism lifestyle and financial literacy have a significant influence on personal financial management.However, the hedonistic lifestyle has a different direction sign with financial literacy as a determining factor for students' personal financial management. The managerial implication of this research that occurs is that parents need to emphasize more financial literacy than the hedonistic lifestyle in order to form a better personal financial management attitude in the future.

Hubungan Tingkat Stres Dalam Belajar Terhadap Kejadian Akne Vulgaris Pada Mahasiswa/I Fakultas Kedokteran Universitas Tarumanagara Angkatan 2018

Introduction: Acne vulgaris is an inflammation of the pilosebaceous follicles that begins to appear when a person reaches adolescence. There are several risk factors that can affect the onset of acne vulgaris such as genetics, hormones, weather, food, cosmetics, P.acnes bacterial infection, and stress. Stress can trigger an increase in androgen hormones that affect the increase in sebum production. Increased sebum can inhibit sebum secretion in pilosebaceous follicles and cause inflammation. This study was conducted to determine the relationship between stress in learning and the incidence of acne vulgaris. Methods: The research method used is a cross-sectional analytic study with a total sample of 71 people. Data was collected by distributing questionnaires and observing facial photographs. Research data analysis using SPSS. Results: 49 (69%) female respondents and 22 (31%), majority 53 (74.6%) respondents experienced moderate stress. Based on the assessment of Plewig and Kligman, it was found that most respondents had AV degree 1 as many as 57 (80.3%). The results obtained p value = 0.001 (p < 0.050) Discussion: Medical faculty students have a high-stress level which impacts their physical and mental health. Stress can worsen acne by increasing the secretion of androgen hormones and can cause sebaceous gland hyperplasia Conclusion: There is a significant relationship between the level of stress in learning with the incidence of acne vulgaris in students of the Faculty of Medicine, Tarumanagara University Class 2018.

TINGKAT KEMAMPUAN REFLEKSI DIRI DALAM PEMBELAJARAN MAHASISWA FAKULTAS KEDOKTERAN UNIVERSITAS TARUMANAGARA

Self-reflection is one of the important components needed by a learner to be able to develop himself. In medical education, self-reflection is useful in preparing students to become professional doctors and ready for lifelong learning. This study aims to determine the level of self-reflection ability in student learning at the Faculty of Medicine, Tarumanagara University by using a reflection in learning scale questionnaire. This research is descriptive quantitative with a cross-sectional approach. Respondents were 148 people with 74 students at the academic stage and 74 students at the professional stage. The results showed that the highest self-reflection ability in learning was owned by the academic stage respondents, was mostly at the level of the "ample" category (50%), followed by "maximum" (35.1%), "partial" (12.2%), and “restricted” (2.7%). While the results of research on self-reflection ability in learning are mostly owned by professional stage respondents, they are at the level of the " ample " category (63.5%), followed by "maximum" (28.4%), "partial" (8.1%), and “restricted” (0%). In addition, several factors have the potential to influence self-reflection such as age, gender, academic performance, motivation, and teacher responses. The conclusion of this research is that the level of self-reflection ability in student learning at the Faculty of Medicine, Tarumanagara University is at the “ample” category level.

RELATIONSHIP BETWEEN PARENTS' COMMUNICATION AND CONFIDENCE IN STUDENTS OF THE FACULTY OF MEDICINE, TARUMANAGARA UNIVERSITY FOR THE 2020 AND 2021

Adolescence is a period in which individuals begin to experience rapid growth and development both physically, psychologically, and intellectually. One of the most important things in adolescence is self-confidence. Self-confidence is a belief in the skills and potential in a person. The formation of self-confidence can be influenced by many factors, one of which is parental communication. The purpose of this study was to determine the relationship between parental communication and self-confidence in students of the Faculty of Medicine, Tarumanagara University class of 2020 and 2021. This study used a cross-sectional research design and was an observational analytic study. This research was conducted at the Faculty of Medicine, Tarumanagara University with a total of 154 samples that met the inclusion criteria. Data was taken using a questionnaire. The results of the Pearson Chi-Square test showed that there was a significant relationship between parental communication and self-confidence (p-value 0.002 0.05). So it can be concluded that the higher the level of communication of people, their self-confidence of a person will also be higher. It is recommended that further research can use this research as a reference and can expand the discussion of theories related to this research.

Knowledge and Attitudes of Non-Medical Faculty Students Batch 2020 about Polycystic Ovarian Syndrom (PCOS) at Tarumanagara University

Polycystic Ovarian Syndrome (PCOS) is one of the most common hormonal disorders in women of childbearing age (WUS). Signs and symptoms experienced by PCOS patients are obesity, menstrual cycle ≤ 21 days or ≤ 35 days, hirsutism, excessive acne, acanthosis nigricans, skin tags, and alopecia. This study aims to determine the knowledge and attitudes in the Faculty of Non-medical students at Tarumanagara University related to PCOS.This research is a qualitative research with descriptive research design conducted at Tarumanagara University. Samples were taken between January and May 2022 among Non-medical Faculty Students batch 2020. Questionnaires were filled out and analyzed using a computer device. The knowledge levels of Non-medical Students at Tarumanagara University are categorized as" Good "47%," Sufficient "42 %, and" Bad" 11%. The categories of attitudes obtained 95% as “Good” and 5% as “Sufficient”. Those suspected of suffering PCOS as many as 17%, while the rest did not seem to suffer PCOS. Level of knowledge and attitude of Non-medical Faculty Students on PCOS is mostly “good" category. Only 17% were suspected of suffering PCOS. Keywords: Attitude, Knowledge, PCOS

The Correlation of Sleep Quality and Cognitive Function In Students Of the Faculty Medicine during the Covid-19 Pandemic

<div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><em>Sleep deprivation often occurs in those who live in social situations and lifestyles that support the occurrence of these conditions, for example in people who have a large workload or academic demands, including medical students. Moreover, the outbreak of the COVID-19 pandemic since 2020 has made various universities suspend face-to-face learning which has an impact on increasing assignment assignments. This study aims to determine the relationship between sleep quality and cognitive function in the Class of 2020-2021 Students of the Faculty of Medicine of Tarumanagara University during the COVID-19 pandemic. The research method used is an analytical observational study using a cross-sectional analysis design. Data was collected online through filling out the Pittsburgh Sleep Quality Index (PSQI) and Indonesian-language Montreal Cognitive Assessment (MoCA-INA) questionnaires by respondents during the period of December 2021 to May 2022. The results of the study obtained 249 respondents, of which 159 respondents had poor sleep quality (63.9%). Poor sleep quality was more commonly found in respondents in the age group of 20-22 years (67.2%), female gender (68.2%), group with history of routine drug consumption (88.2%), and history of consuming caffeinated drinks >2x/day (76.3%). There is a significant relationship between sleep quality and cognitive function in the Class of 2020-2021 Students of the Faculty of Medicine of Tarumanagara University during the COVID-19 pandemic (RR=6.575, p<0.0001) as a conclusion. It is hoped that the results of this study can serve as educational material and reference especially for university students so that they can apply good sleep hygiene practices to optimize sleep quality and cognitive function.</em></p><p><em> </em></p><p><strong><em> </em></strong></p></td></tr></tbody></table></div><strong><em>Keywords: COVID-19, PSQI, MoCA-INA</em></strong>

THE INFLUENCE OF BTS BRAND AMBASSADORS ON TOKOPEDIA CONSUMERS' BUYING INTEREST

More and more marketplaces have sprung up in Indonesia, causing high market competition. One of these marketplaces is Wikipedia. One of Tokopedia's steps in attracting consumer interest is to use BTS as a brand ambassador. This study aims to determine the effect of the BTS brand ambassador on the buying interest of Tokopedia consumers. This research uses Source Credibility Theory, and the research method used is quantitative. Primary data for this study were obtained from a survey of 120 Tarumanagara University students and secondary data from books, journals, and previous research. To take the sample using the purposive sampling method with the type of cross-sectional survey by distributing questionnaires. The analytical methods used are validity, reliability, correlation, simple linear regression, determination, and t-test with SPSS version 25. The correlation test results show a 36.9% strong correlation between the brand ambassador variable (X) and the buying interest variable (Y), and 63.1% influenced by other variables. This is supported by the results of the t-test and the sig level of 0.000 <0.05, which means Ha is accepted, namely, the BTS brand ambassador affects the buying interest of Tokopedia consumers.

THE EFFECT OF CELEBRITY WORSHIP ON THE NEWS DIFFUSION OF BTS MEAL

Technology is increasingly sophisticated, making many people use social media to promote their products, one of which is McDonald's, which collaborates with BTS for the BTS Meal product, which is the number three trending topic in the world. This research was carried out with the aim of testing whether a person's level of liking for idol (celebrity worship) affects the level of news spread about BTS Meal. The theory used in this research is two step flow, news diffusion, celebrity worship, and social media. The researcher used a quantitative approach with a simple linear regression test to examine this. Respondents in this study were 104 by purposive sampling. The sample in this study were Tarumanagara University students who are BTS fans. The study's results using a simple linear regression test showed an influence of celebrity worship levels on the diffusion of BTS Meal news by 56.2% with a significant ANOVA value of 0.000. If the ANOVA value < 0.05, it can be concluded that there is a significant difference in the influence between celebrity worship and the diffusion of BTS Meal news.