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Free Radical Scavenging Activity of Ethanolic Leaves Extract and Its Different Solvent Fractions of Piper betle L. In Vitro Risdian, Chandra; Widowati, Wahyu; Mozef, Tjandrawati; Wargaseti, Teresa Liliana; Khiong, Khie
Indonesian Journal of Cancer Chemoprevention Vol 2, No 1 (2011)
Publisher : Indonesian Research Gateway

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4.399 KB)

Various diseases including cancer and cardiovascular diseasesare induced by free radicals via lipid peroxidation, protein peroxidation, DNA damage, and cellular degeneration in thecells.Piper betle L.,commonly called betel,belongs to thePiperaceae family.It originated from South and South Eas tAsia,and has been used as a traditional medicine by people theredue to its medicinal properties.In the present study, free radicalscavenging activity of ethanolic leaves extract of Piper betle L.together with its different solvent fractions(hexane,ethylacetate,butanol,and water)were evaluated by DPPH freeradical scavenging assay.The ethanolic extract and the ethylacetate fraction had shown very significant DPPH (1,1)diphenyl)2)picryl)hydrazyl) radical scavenging activitycompared to the other fractions.In DPPH free radical scavengingassay,the IC50 value of the ethanolic extract and the ethyl acetate fraction were found to be 17.431g/mL and 11.53 1g/mL, respectively. The free radical scavenging activity was assumed due to the total phenolic content.The total phenoliccontent was found to be highest in the ethanol extract(277.68ÃÂµgEGCG/mg)and the ethyl acetate fraction(559.38ÃÂµgEGCG/mg).The results concluded that the ethanolic leaves extract of PiperÃÂ betle L. and its ethyl acetate fraction have a consider ably freeradical scavenging activity.

The Effect of Ethanol Extract from Mangosteen Pericarps towards Parasitemia in Plasmodium berghei-Inoculated Mice Marito, Debora R.; Tjahjani, Susy; Khiong, Khie
Journal of Medicine and Health Vol 1, No 4 (2016)
Publisher : Maranatha Christian University

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Mangosteen pericarps contains fenolic antioxidant, such as xanthone that acts as free radical scavenging substances and preventing heme polymerization. In this research we evaluated the effect of ethanolic extract of mangosteen pericarps on the parasitemia in Plasmodium berghei-inoculated mice and compared its antimalarial activity with artemisinin monotherapy in reducing the parasitemia in Plasmodium berghei-inoculated mice. Deutschland Denken Yoken (DDY) Â mice were randomly divided into 5 groups and inoculated by Plasmodium berghei and given 0.1 mL aquadest (KN), 0.1 mg of artemisinin (KP), 2.5 mg (E1), 0.5 mg (E2) and 0,1 mg (E3) of ethanolic extract from mangosteen pericarps in 0.1 mL aquadest in 3 days. The parasitemia was observed on one day before the treatment, namely on the first day and on the day after the last treatment. We found a highly significant decrease highly significant decrease of the parasitemia in each treatment group compared to the Negative Control group (p < 0.01), and the decrease of parasitemia level in E1 group is similar to the artemisinin monotherapy group (p < 0.05).Â Â Keywords: ethanol extract of mangosteen pericarps, artemisinin, Plasmodium berghei, malaria

Pengaruh Minat Belajar dan Lingkungan Belajar Terhadap Proses Belajar Aktif Pendidikan Agama Buddha pada Siswa SMP Metta Maitreya Pekanbaru Chandra, Author’s; Khiong, Khie; Utomo, Budi
Journal of Education Religion Humanities and Multidiciplinary Vol 1, No 2 (2023): Desember 2023
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jerumi.v1i2.1327

Penelitian ini bertujuan untuk mengetahui pengaruh minat belajar dan lingkungan belajar terhadap proses belajar aktif pendidikan agama Buddha siswa kelas VII SMP Metta Maitreya. Metode penelitian yang digunakan adalah survei dengan analisis regresi linier berganda menggunakan SPSS 22. Populasi penelitian ini adalah siswa kelas VII SMP Metta Maitreya. Instrumen pengumpulan data berupa angket untuk menguji validitas dan reliabilitas. Penelitian ini menggunakan pendekatan kuantitatif. Hasil analisis menunjukkan bahwa variabel minat belajar tidak mempunyai pengaruh terhadap proses belajar aktif, namun secara parsial variabel lingkungan belajar mempunyai pengaruh terhadap proses belajar aktif. Secara simultan variabel independen mempunyai pengaruh terhadap proses belajar aktif. Dengan demikian, variabel lingkungan belajar mempunyai pengaruh yang signifikan terhadap proses belajar aktif siswa dibandingkan variabel minat belajar.

SERVICE QUALITY PANDITA LOKAPALASRAYA AND DHARMADUTA INDONESIAN BUDDHIAN ASSEMBLY Wijoyo, Hadion; Suherman, Suherman; Khiong, Khie
EARR (Educational Administration Research and Review) Vol 6, No 2 (2022): December 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/earr.v6i1.48117

With the uneven distribution of Pandita, the guidance of the people in several places of worship is not optimal. The approach used in this study is a qualitative approach. This approach is used to examine the application of the five dimensions of service quality of Pandita Lokapalasraya and Dharmaduta MBI Pekanbaru City in 7 (seven) Viharas and Cetiya. From the results of the study, it was found that the quality of tangible services for Pandita Lokapalasraya and Dharmaduta through the indicators of the level of easy, safe and adequate parking facilities was an inhibiting factor in Pandita's service to the people. The quality of service for Pandita Lokapalasraya and Dharmaduta empathy through service demand system indicators is an inhibiting factor in Pandita's service. The quality of service responsiveness of Pandita Lokapalasraya and Dharmaduta Indonesian Buddhist Council Pekanbaru through indicators of the responsiveness level of Panditas and management of houses of worship in providing and resolving any complaints of the people, responsiveness of Panditas and management of houses of worship in serving new devotees, and responsiveness of priests and house management worship in providing information on a regular basis is an inhibiting factor in the quality of Pandita's services.

Minat Belajar dan Lingkungan Belajar Dalam Meningkatkan Proses Belajar Aktif Pendidikan Agama Buddha Chandra, Chandra; Khiong, Khie
Jurnal Educatio FKIP UNMA Vol. 10 No. 1 (2024)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/educatio.v10i1.7137

Pendidikan Agama Buddha di sekolah menengah pertama (SMP) menjadi inti kurikulum di Indonesia. Minat belajar dan lingkungan belajar dianggap mempengaruhi keterlibatan siswa dalam pembelajaran Agama Buddha. Studi ini fokus pada dampak minat belajar dan lingkungan belajar terhadap keterlibatan siswa di SMP Metta Maitreya Pekanbaru. Metode penelitian melibatkan survei dengan Skala Likert kepada siswa kelas VII. Uji validitas dan reliabilitas terhadap minat belajar dan lingkungan belajar menegaskan kevalidan dan reliabilitas data. Hasil analisis menunjukkan distribusi normal data dan tidak ada multikolinearitas. Koefisien Determinasi (R2) menunjukkan variabel independen menjelaskan 54,7% variasi hasil belajar. Variabel lingkungan belajar terbukti berpengaruh signifikan terhadap hasil belajar, sementara minat belajar tidak. Kondisi lingkungan belajar yang kondusif dan peran guru mendukung hasil belajar siswa di Pendidikan Agama Buddha. Implikasi penelitian ini menyoroti pentingnya lingkungan belajar dalam meningkatkan hasil belajar siswa. Kesimpulan menekankan bahwa lingkungan belajar memegang peran penting dalam hasil belajar, sementara minat belajar tidak terbukti signifikan. Rekomendasi diarahkan pada peningkatan aspek lingkungan belajar di SMP Metta Maitreya untuk mendukung hasil belajar yang lebih baik di mata pelajaran Agama Buddha. Studi selanjutnya disarankan untuk mempertimbangkan variabel tambahan dan meluas ke sampel yang lebih representatif.

The Influence of Leadership Behavior and Managerial Skills of School Principals on the Performance of Teachers at Jakarta School Causirhom, Surya; Khiong, Khie; Nyanasuryanadi, Partono
Scaffolding: Jurnal Pendidikan Islam dan Multikulturalisme Vol 6 No 2 (2024): Geographical Coverage: Indonesia, Iraq, Malaysia, and Denmark
Publisher : Institut Agama Islam Sunan Giri (INSURI) Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/scaffolding.v6i2.6126

This study aims to analyze the impact of leadership behavior and managerial skills of school principals on teacher performance at Sekolah Ekayana Dharma Budhi Bakti Jakarta. In this study, a sample was consisting of all teachers in elementary, junior high, senior high, and vocational schools under the Sekolah Ekayana Dharma Budhi Bakti Jakarta, totaling 44 individuals. The data used in this research consists of primary data obtained through a structured questionnaire and secondary data obtained from relevant documents and academic records. Data were collected through a structured questionnaire designed to assess teachers' perceptions of the principal's leadership behavior, managerial skills, and their own performance. The analysis utilized multiple linear regression, conducted with SPSS version 26. The findings indicate that the principal's leadership behavior significantly influences teacher performance. Principals demonstrating strong leadership behavior enhance teachers' motivation and discipline, which positively impacts their performance. Additionally, the managerial skills of the principal contribute to teacher performance by fostering an effective resource management and problem-solving environment. Collectively, both leadership behavior and managerial skills create a motivating work atmosphere that improves teacher performance and job satisfaction.

Pengaruh Puasa Vikâla Bhojana terhadap Kadar Trigliserida dan Gula Darah pada Komunitas Bhikkhu Theravâda Fredy, Fredy; Utomo, Budi; Khiong, Khie
Majalah Kedokteran Indonesia Vol 69 No 8 (2019): Journal of The Indonesian Medical Association - Majalah Kedokteran Indonesia, Vo
Publisher : PENGURUS BESAR IKATAN DOKTER INDONESIA (PB IDI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47830/jinma-vol.69.8-2019-187

Introduction: Heart disease and stroke are the top two causes of death in the world that are associated with high cholesterol and blood glucose level due to the wrong diet. Objective: The objective of this study is to prove the effect of vikâla bhojana (Buddhist fasting) on triglyceride and fasting plasma glucose levels on Theravâda monks community in Medan city. Method: The research method used is quasi experimental design with non equivalent control group. A purposive sampling technique with inclusion criteria has been applied to respondents, which consisted of 18 monks and 18 laypeople. Anthropometric measurements and biochemical blood analysis are used to collect data. Statistical analysis is performed by using a single sample t-test, unpaired t-test, and Pearson Product Moment. Result: The research statistic shows the value of p=0,006 (p < 0,05), indicating there is a significant difference between the mean of triglyceride and fasting plasma glucose level among groups. Conclusion: Although the main purpose of vikâla bhojana (Buddhist fasting) is to attain self-control, vikâla bhojana (Buddhist fasting) can reduce triglyceride and fasting plasma glucose level.

The Influence of Leadership Behavior and Managerial Skills of School Principals on the Performance of Teachers at Jakarta School Causirhom, Surya; Khiong, Khie; Nyanasuryanadi, Partono
Scaffolding: Jurnal Pendidikan Islam dan Multikulturalisme Vol. 6 No. 2 (2024): Geographical Coverage: Indonesia, Iraq, Malaysia, and Denmark
Publisher : Institut Agama Islam Sunan Giri (INSURI) Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/scaffolding.v6i2.6126

This study aims to analyze the impact of leadership behavior and managerial skills of school principals on teacher performance at Sekolah Ekayana Dharma Budhi Bakti Jakarta. In this study, a sample was consisting of all teachers in elementary, junior high, senior high, and vocational schools under the Sekolah Ekayana Dharma Budhi Bakti Jakarta, totaling 44 individuals. The data used in this research consists of primary data obtained through a structured questionnaire and secondary data obtained from relevant documents and academic records. Data were collected through a structured questionnaire designed to assess teachers' perceptions of the principal's leadership behavior, managerial skills, and their own performance. The analysis utilized multiple linear regression, conducted with SPSS version 26. The findings indicate that the principal's leadership behavior significantly influences teacher performance. Principals demonstrating strong leadership behavior enhance teachers' motivation and discipline, which positively impacts their performance. Additionally, the managerial skills of the principal contribute to teacher performance by fostering an effective resource management and problem-solving environment. Collectively, both leadership behavior and managerial skills create a motivating work atmosphere that improves teacher performance and job satisfaction.

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