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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences JURNAL GIZI INDONESIA Jurnal Manajemen Bisnis Fokus Bisnis BISNIS: Jurnal Bisnis dan Manajemen Islam Proceeding Seminar LPPM UMP Tahun 2014 INDONESIAN JOURNAL OF PHARMACY DERIVATIF Jurnal Akuntansi dan Pajak As-syifaa Jurnal Farmasi Jurnal SOLMA ANNALES BOGORIENSES RJABM (Research Journal of Accounting and Business Management) Muhammadiyah International Journal of Economics and Business SENTRALISASI International Journal of Islamic Business and Economics (IJIBEC) Jurnal Ilmiah Akuntansi dan Keuangan Jurnal Ilmu Manajemen Jurnal Mantik BALANCE Jurnal Akuntansi dan Bisnis International Journal of Economics, Business and Accounting Research (IJEBAR) Jurnal Ilmiah Edunomika (JIE) Budimas : Jurnal Pengabdian Masyarakat Entrepreneurship Bisnis Manajemen Akuntansi (E-BISMA) Jurnal Ekonomi dan Bisnis Digital (MINISTAL) East Asian Journal of Multidisciplinary Research (EAJMR) Makara Journal of Science SEAQIS Journal of Science Education Asian Journal of Management Analytics Prosiding University Research Colloquium International Journal of Business and Applied Economics (IJBAE) e-Jurnal Apresiasi Ekonomi IIJSE Fokus Bisnis: Media Pengkajian Manajemen dan Akuntansi Riset Akuntansi dan Keuangan Indonesia International Journal of Economics, Business and Innovation Research JIPITI: Jurnal Pengabdian kepada Masyarakat JURNAL MANAJEMEN DAN BISNIS INDONESIA Annales Bogorienses Berita Biologi
Akhmad Darmawan
Department of Chemistry University of Indonesia Kampus Depok, Jl. Margonda Raya, Depok, West Java, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Physics Social Sciences Other

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Determinants of Organizational Citizenship Behavior with Job Satisfaction Mediation Mahmudah, Diana; Wahyuni, Sri; Tubastuvi, Naelati; Darmawan, Akhmad
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 3 (2025): Sharia Economics
Publisher : Sharia Economics Department Universitas KH. Abdul Chalim, Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i3.8503

Abstract

Organizational Citizenship Behavior (OCB) is voluntary behavior that supports the effectiveness of the organization. Factors that affect OCB teachers in Islamic educational institutions need to be studied to improve the quality of learning. This study aims to analyze the influence of Islamic Leadership, Work-life Balance, and Organizational Culture on Organizational Citizenship Behavior by Mediating Job Satisfaction in teachers of Islamic educational institutions. The research method uses a quantitative approach with survey design. The research population is 164 teachers with 101 teachers who are determined through purposive sampling with a minimum working period of 2 years. The analysis tool used is Partial Least Square (PLS) with a standard of alpha significance of ten percent. The results of the study show that Islamic Leadership and Organizational Culture have a significant positive effect on OCB. Organizational Culture also has a significant positive effect on Job Satisfaction, which then affects OCB. On the other hand, Islamic Leadership has no significant effect on Job Satisfaction, and Work-life Balance does not have a significant effect on Job Satisfaction or OCB. Job Satisfaction mediates the relationship between Organizational Culture and OCB. The implications of the study show that strengthening Organizational Culture is the main strategy in improving teachers' OCB, both directly and through increasing Job Satisfaction. Islamic leadership effectively encourages OCB directly.
Pelatihan Pemanfaatan Media On-Line sebagai Sarana Pemasaran On-Line bagi Wirausaha Aisyiyah Kabupaten Banyumas Kusbandian, Ani; Fitriani, Azmi; Darmawan, Akhmad
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Sosial Ekonomi dan Psikologi
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Kegiatan Ipteks bagi Masyarakat ini bertujuan untuk menunmbuhkan jiwa kewirausahaan UMKM di lingkungan PDA, Dengan ketatnya persaingan usaha membuat pengelola harus mampu memanfaatkan media- media baru sebagai alat pemasaran agar produknya bisa memasyarakat. Metode yang akan digunakan untuk kegiatan Ipteks bagi Masyarakat adalah : (1) Pembentukan panitia kegiatan, Administrasi kegiatan , dan Pembuatan bahan ajar dan modul Praktikum (2) Pelaksanaan pelatihan dilakukan dengan menyampekan materi yang telah disusun dan langsung praktikum (3) Penutup dilakukan dengan mengevaluasi kegiatan yang dilakukan dengan post test.
Preparing Digital Business for Children of Indonesian Domestic Worker in Malaysia Randikaparsa, Irawan; Darmawan, Akhmad; Bagis, Fatmah; Hasanah , Uswatun; Darmawan , Althaffauz Najwa
JIPITI: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 3 (2024): November 2024 - JIPITI: Jurnal Pengabdian kepada Masyarakat
Publisher : PT. Technology Laboratories Indonesia (TechnoLabs)

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Abstract

Makalah ini membahas sebuah inisiatif layanan masyarakat yang memberikan pelatihan pemasaran digital kepada pekerja migran Indonesia di Kuala Lumpur, Malaysia, pada 24 Februari 2023, di Wisma Sabaruddin. Dengan target 40 peserta, yang sebagian besar bekerja di pabrik dan rumah tangga, pelatihan ini membekali mereka dengan keterampilan penting untuk memasarkan produk mereka setelah kembali ke Indonesia. Sesi ini menampilkan presentasi yang menarik diikuti dengan sesi tanya jawab, yang mendorong partisipasi aktif. Hasilnya menunjukkan antusiasme tinggi di antara para peserta, yang melaporkan wawasan berharga tentang strategi pemasaran digital dan mengembangkan rencana pemasaran terstruktur yang disesuaikan dengan produk mereka. Inisiatif ini mengatasi kebutuhan pendidikan pekerja migran dan memberdayakan mereka dengan alat yang diperlukan untuk mencapai keberhasilan wirausaha. Umpan balik positif menunjukkan adanya permintaan yang kuat untuk inisiatif pelatihan lebih lanjut, yang menekankan pentingnya sumber daya pendidikan yang berorientasi pada komunitas dalam meningkatkan keterampilan dan mata pencaharian kelompok yang terpinggirkan. Dengan mendukung individu-individu ini, program semacam itu dapat memupuk ketahanan ekonomi dan membantu mereka dalam reintegrasi ke pasar Indonesia.
THE INFLUENCE OF LEADERSHIP STYLE, COMMUNICATION, MOTIVATION, AND WORKLOAD ON JOB SATISFACTION Nurhanifah, Salma; Widhiandono, Hengky; Darmawan, Akhmad; Haryanto, Totok
Jurnal Apresiasi Ekonomi Vol 11, No 1 (2023)
Publisher : Institut Teknologi dan Ilmu Sosial Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.243 KB) | DOI: 10.31846/jae.v11i1.579

Abstract

ABSTRACT The purpose of this study was to examine and analyze the effect of leadership style, communication, work motivation, and workload on employee job satisfaction at the Office of the Ministry of Agrarian Affairs and Spatial Planning of the Land Agency (ATR/BPN) of Cilacap Regency. This type of research is a quantitative-survey research. The population in this study were all ATR/BPN employees in Cilacap Regency. Samples were taken using the slovin formula, totaling 108 employees at ATR/BPN Cilacap Regency. The sampling technique in this study used the Simple Random Sampling (SRS) technique. The research instrument used a questionnaire. The analysis technique in this study uses statistical analysis Smart Partial Least Square (Smart-PLS) 3.2.9 is used to test validity, reliability test, R-Square test, Net Fit Index (NFI) test, and hypothesis testing. The results of this study prove that partially leadership style, communication, work motivation affect job satisfaction of ATR/BPN employees in Cilacap Regency, while workload partially does not affect job satisfaction of ATR/BPN employees in Cilacap Regency.Keywords: Leadership Style, Communication, Motivation, Workload, Job Satisfaction
PENGARUH KONFLIK KERJA, KELELAHAN KERJA DAN BEBAN KERJA TERHADAP KINERJA KARYAWAN PT USAHA KARYA CILACAP Dewi, Sandra; Darmawan, Akhmad; Muji R., Tri Septin; Haryanto, Totok
Jurnal Akuntansi dan Pajak Vol. 24 No. 2 (2024): JAP : Vol. 24, No. 2, Agustus 2023 - Januari 2024
Publisher : ITB AAS INDONESIA

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Abstract

The aim of this research is to determine the effect of work conflict, work fatigue and workload on employee performance. This type of research is quantitative survey research. The population of this study was 120 employees and the sample size was 107. The sampling technique used was nonprobability sampling with a sample method, namely purposive sampling. The analysis test used multiple regression using SPSS version 20 for Windows software. The research results show that work conflict has a negative and significant effect on employee performance. Work fatigue has a negative and insignificant effect on employee performance. Workload has a negative and significant effect on employee performance
PENGARUH KEPEMIMPINAN TRANSFORMASIONAL, MOTIVASI, PELATIHAN KERJA DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN PADA PERUSAHAAN DAERAH AIR MINUM (PDAM) TIRTA SATRIA KABUPATEN BANYUMAS Putra, Nafis Mahesa; Darmawan, Akhmad; Suyoto, Suyoto; Haryanto, Totok
Jurnal Akuntansi dan Pajak Vol. 24 No. 2 (2024): JAP : Vol. 24, No. 2, Agustus 2023 - Januari 2024
Publisher : ITB AAS INDONESIA

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Abstract

This research aims to determine the influence of transformational leadership, motivation, training and work environment on employee performance at Perumdam Tirta Satria, Banyumas Regency. The population in this study was all employees at Perumdam Tirta Satria, Banyumas Regency, totaling 133 employees. The sampling technique uses purposive sampling with criteria namely general, financial and mechanical division employees, who have worked for more than one year, excluding leaders. The sample size in this study was 100 samples using the Slovin formula. Analysis uses multiple linear regression and correlation using SPSS version 26. The results of the research show that transformational leadership and motivation have a positive and significant effect on employee performance, training has an insignificant positive effect, while the work environment does not have a significant effect on employee performance. Keyword: transformational leadership, motivation, job training, work environment, and employee perfomance
Cytotoxic Activity of Flavonoid Compounds Isolated from Tetrameles Nudliflora Leaves Megawati, Megawati; Darmawan, Akhmad; Fajriah, Sofa
Annales Bogorienses Vol. 23 No. 2 (2019): Annales Bogorienses
Publisher : BRIN

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Abstract

Tetrameles nudliflora is one of the endemic plants in Wallace region, especially in Mekongga Forest, Southeast Sulawesi, Indonesia. As part of our project in the field of natural drug discovery based on local bioresources, this study aimed to isolate secondary metabolite compounds from the ethyl acetate fractions of the leaves of T. nudiflora and evaluate their cytotoxic activities against breast carcinoma cancer lines, MCF-7. The methods used were various chromatography techniques such as vacuum column chromatography, gravitation column chromatography, thin layer chromatography, preparative thin layer chromatography, and re-crystallization using two different organic solvents. In the present study, two flavonoid compounds, kaempferol (1) and quercetin (2) were identified. The structures of 1-2 were determined using serial spectroscopic techniques, including mass spectrometry, one- and two-dimensional nuclear magnetic resonance. Moreover, using 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide (MTT) assay method, both compounds showed in vitro cytotoxic activity IC50 of 34.162 and 133.148 μg mL-1, respectively against MCF-7 cell lines.
Identification of a New Compound as α-Glucosidase Inhibitor from Aspergillus aculeatus Dewi, Rizna Triana; Suparman, Asep; Mulyani, Hanny; Darmawan, Akhmad; Lotulung, Puspa Dewi N.
Annales Bogorienses Vol. 20 No. 1 (2016): Annales Bogorienses
Publisher : BRIN

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Abstract

Terestrial fungi are of great importance as potential sources of pharmaceutical agent. Aspergillus aculeatus, a fungus isolated from soil sample collected in Indonesia, was cultured in liquid media to investigate a novel compound as inhibitor -glucosidase. The mycelium extract of A. aculeatus shows potential activity against Saccharomyces cereviseae -glucosidase and mild activity against mammalian -glucosidase with IC50 values of 9.57 μg/mL and 470.76 mg/mL, respectively. Enzyme assay-guided fractionation of this extract afforded rubrofusarin (1). Rubrofusarin, a linear naphtho--pyrone, is a natural pigment from Aspergillus sp. Interestingly, compound 1 shows potential inhibitory activity against mammalian -glucosidase (IC50 of 92.7 μg/mL), but no to S. cereviseae -glucosidase. The results suggest that A. aculeatus is a promising natural source as a lead compound in the discovery of antidiabetic drug.
ISOLATION AND IDENTIFICATION OF APIGENIN, A FLAVONOID COMPOUND FROM MACARANGA HYPOLEUCA (REICHB.F. & ZOLL.) Aisya, Sitti; Megawati, Megawati; Ariani, Novita; Sukirno, Sukirno; Minarti, Minarti; Kurniawan, Hendris Hendarsyah; Hidayat, Arief; Hendra, Medi; Primahana, Gian; Darmawan, Akhmad
Berita Biologi Vol 23 No 1 (2024): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/beritabiologi.2024.3242

Abstract

The study on Macarang hypolueca (Reichb.f. & Zoll.), which was collected from secondary forests around Samarinda City, East Kalimantan, involved phytochemical investigations that led to the isolation of a flavone type compound of flavonoid from the ethyl acetate fraction. To separate the compounds, silica gel column chromatography was utilized with a gradient solvent system of n-hexane and ethyl acetate, along with the addition of 5%. Infrared analysis (FTIR), mass spectrum (LC-ESI-MS), and nuclear magnetic resonance (1D- and 2D-NMR) were used to identify and elucidate the structure. Based on spectroscopic data and comparison with appropriate references, the isolated compound was identified as apigenin
Investigating Critical Thinking Skills in Rural Middle School Students through STEM Education: A Qualitative Case Study from Sumedang hajar, maya umi; Nurmalasari, Santy; Darmawan, Akhmad
SEAQIS Journal of Science Education Vol. 5 No. 02 (2025): SEAQIS Journal of Science Education
Publisher : SEAMEO QITEP in Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58249/sjse.v5i02.200

Abstract

Learning plays a crucial role in fostering students’ critical thinking skills, enabling them to address the challenges they face in their daily lives. This study was conducted in Sumedang, West Java, where students experience limited water availability. The main water sources are located far from residential areas, requiring students to make long trips each morning to fetch water from a distant river. This qualitative descriptive study aimed to explore how students employ critical thinking skills while engaging in contextual STEM learning through the development of a non-electric water pump project. The project involved seventh-grade students participating in science classes using a contextual STEM approach over one semester. Data were collected and analysed through observation, document analysis, and audio and video recordings using Transcript-Based Lesson Analysis. Indicators of critical thinking such as questioning, articulating assumptions, and demonstrating open-mindedness were observed during the STEM learning process of designing the non-electric water pump. The emergence of these skills varied across learning phases, individual characteristics, and group dynamics. Contextual STEM learning not only promotes critical thinking but also equips students with essential life skills for global competition in the 21st century by preparing them to solve real-world problems. The findings of this study provide insights for educators in designing more meaningful science learning experiences in the future.
Co-Authors . Suwarsito ., Alfalisyado A.A. Ketut Agung Cahyawan W Ahmad Randy Ahmad Wahyudin Aisya, Sitti Amir Amir Anggelina, Yosita Anggraini, Intan Anggun Puspita Ariani, Novita Arief Hidayat Arini Hidayah, Arini Aris, Muhammad Rizqie Aryawibawa, Anja Dwi Aryoko, Yudhistira Pradhipta Aryoko, Yudistira Pradipta ASEP SUPARMAN Bagis, Fatmah Barlian, Putri Bekti Divayani, Naelin Dinda Condro Nur Alim Darmawan , Althaffauz Najwa Dewijanti, Indah Dwiatmi Dini Siswani Mulia Endang Saepudin, Endang Erny Rachmawati Fadzilah, Rizqiya Nur Fitriani, Azmi Fitriati, Azmi Galuh Widiyarti Hajar, Maya Umi Hani Mulyani, Hani Haryanto, Totok Hasanah , Uswatun Hendris Hendarsyah Kurniawan, Hendris Hendarsyah Hengky Widhiandono Heri Syahrian, Heri Hermin Endratno Indah Rahmawati Indahsari, Ninik Dewi Irfanesa, Irfanesa Jamhari Jamhari Jaroenwanit, Pensri Kharismasyah, Alfato Yusnar Kurnia, Kesih Kusbandian, Ani Leonardus B.S. Kardono Lia Meilawati Lotulung, Puspa Dewi N. Maharani, Adinda Safirah Maharani, Annisa Dwi Maharani, Wilia Krisna Mahmudah, Diana Maulida Nurul Innayah Maulidiyah Mawaddah, Apriani Medi Hendra, Medi Megawati Megawati - Megawati, Melliana, Sinta Bella Miftahuddin, Muchammad Agung Minarti Minarti Muhammad Hanafi Muhammad Nurdin Muji R., Tri Septin Mulyani, Hanny Mulyani, Hanny Naelati Tubastuvi Nina Artanti Nisa, Ainun Nofianingsih, Elsa Nugroho, Bambang Haryo Nur Umami, Kharisma Aulia Nurfiani, Aisah Nurhanifah, Salma Nurmalasari, Santy Pratama, Bima Cinintya Pratama, Bintang Rizki Pratiwi, Firda Ardianti Primahana, Gian Purnadi Purnadi, Purnadi Puspa Dewi Narrij Lotulung Putra, Nafis Mahesa Putragita, Yudhistira Rahmawati, Dwi Vina Rahmawati, Ika Yustina Randikaparsa, Irawan Ratna Kartika Wati Restu Frida Utami Rimbawan, Bagas Akbar Dwi Pangestu Rizna Triana Dewi sandra dewi Saputra, Eqwar Satria, Agri Bayu Setiyaningrum, Anggun Siska Liana Sofa Fajriah Soleh Kosela Sri Wahyuni Sri Wahyuni SUKIRNO Sukirno Sukirno Sunardi Sunardi Supriadi, Edi Susylowati, Dewi Suwarsito Suyoto Suyoto Teni Ernawati Tri Septin Muji Rahayu, Tri Septin Tri Utami Wahyudi P. Suwarso, Wahyudi P. Wida Purwidianti Widyaningtyas, Dian Widyasmara, Meriska Yogi Widzayanto, Luthfi Arie Wiranti, Elza Devi Yasin, Roqi Yundari, Yundari Yuswandani, Arafah Esa