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Menyingkap Aspek Penting pada Keputusan Pembelian Konsumen Bimbingan Belajar Persiapan Masuk Universitas Impian (PMUI) Kota Depok Immanuel, Immanuel; Sihaloho, Noverika; Nuraini, Febri; Cahya Agusti, Dirga; Abdullah, Muhammad
Jurnal Manajemen dan Ilmu Administrasi Publik (JMIAP) Vol 6 No 4 (2024): Jurnal Manajemen dan Ilmu Administrasi Publik (JMIAP)
Publisher : Laboratorium Jurusan Ilmu Administrasi Negara Fakultas Ilmu Sosial Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jmiap.v6i4.981

Abstract

This study aims to investigate the influence of brand image and brand awareness on consumer purchasing decisions at the "Persiapan Masuk Universitas Impian" (PMUI) tutoring center in Depok. In the face of increasing competition in the tutoring industry, a deep understanding of how brand image and brand awareness influence consumer purchasing decisions is crucial. The research employed a quantitative approach involving 95 respondents. The study population consisted of all consumers who registered at PMUI Depok between November and December 2023, totaling 125 individuals, with a sample selected using probability sampling, specifically simple random sampling. Data were collected via an online questionnaire distributed through Google Forms and analyzed using multiple regression analysis with SPSS version 25. The results indicated that brand image and brand awareness have a significant impact on consumer purchasing decisions at PMUI Depok. A positive brand image, particularly related to the quality of instructors, enhances consumer confidence. However, diversification of learning programs is necessary to meet the needs of a larger number of consumers. Brand awareness, especially in terms of brand recognition, plays an important role, while brand recall needs to be strengthened through active promotion on social media and collaboration with influencers. Price is also a key consideration in purchasing decisions, so PMUI should offer competitive pricing or discount programs. Loyalty programs and reward schemes can further enhance consumer purchasing decisions. By strengthening brand image, brand awareness, and considering price factors, PMUI can improve its competitiveness and position in the market.
Effects of Seasonal Transitions on Population Dynamics of Fruit Flies in Capsicum annuum and Solanum lycopersicum in Batu City, Indonesia Agustina, Dwi Kameluh; Leksono, Amin Setyo; Yanuwiadi, Bagyo; Rizali, Akhmad; Abdullah, Saiful Arif; Abdullah, Muhammad
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 1 (2025): April 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i1.14288

Abstract

Fruit flies remain a persistent threat to horticultural production, especially in tropical regions where seasonal shifts can significantly affect their population dynamics. This study investigated the species composition, diversity, and environmental drivers of fruit fly populations infesting Capsicum annuum and Solanum lycopersicum over a one-year period in Batu City, Indonesia. Using weekly sampling across four seasonal phases—dry-to-rainy transition, rainy season, rainy-to-dry transition, and dry season—fruit fly specimens were collected, reared, and identified. Environmental variables, including temperature, humidity, rainfall, light intensity, and pesticide application frequency, were monitored and analyzed in relation to fruit fly abundance using Principal Component Analysis (PCA) and multiple linear regression. A total of four species were recorded: Bactrocera carambolae, Bactrocera dorsalis, Atherigona sp, and Silba sp, with the latter representing a new regional record for East Java. Population peaks occurred during the rainy season and its transitional periods, while significant declines were observed during the dry months. Regression models revealed that temperature and humidity supported population growth, whereas pesticide use had a consistently suppressive effect—particularly for B. dorsalis and Atherigona sp. However, the models explained only 20–50% of the variation, suggesting that additional ecological factors may be at play. These findings deepen our understanding of fruit fly ecology in tropical systems and highlight the importance of integrating climatic and agronomic data in pest management strategies. The discovery of Silba sp. further enriches current biogeographical knowledge and signals the need for adaptive, interdisciplinary approaches to sustainable pest control.
Switching On/Off Air Conditioner and Fan Alternately based on IoT Motion Detection and Room Temperature Abdul Shukora, Nurul Hidayah; Ahmad Baidowi, Zaid Mujaiyid Putra; Mohd Isa, Mohd Rizal; Darus, Mohamad Yusof; Abdullah, Muhammad
JOIV : International Journal on Informatics Visualization Vol 8, No 3-2 (2024): IT for Global Goals: Building a Sustainable Tomorrow
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.3-2.2721

Abstract

The Internet of Things (IoT) connects electrical appliances that enable data transfer for communication without human intervention. IoT has evolved, and its implementation has been extended to residential areas. It can be said that all residents use fans as cooling appliances. In Malaysia, having a fan is not sufficient due to its hot temperature throughout the year. Therefore, most of the residents use air conditioners as an additional cooling appliance. Using air conditioners regularly could contribute to high energy consumption. Furthermore, excessive energy consumption occurs when an occupant of a residential building forgets to switch off electrical appliances such as fans and air conditioners. In addition, leaving electrical appliances turning on when nobody is at home just wastes energy. This work aims to develop an IoT-based smart home controlling system for minimizing energy consumption. This system enables automatic control that depends on room temperature and motion detection. Various types of sensors, such as temperature sensor, humidity sensor, and motion sensor, are used to switch on/off the air conditioner and fan. The air conditioner and fan will be alternately switched on and off depending on the ideal room temperature. The testing results show a significant reduction in energy consumption and a promising decrease in the electricity bill. Future works should be focusing on determining the over limit energy consumption. On top of that, this research would be best to try on simulation to get better results.
Analysis of Matters Affecting Employee Job Satisfaction at PT Mitra Andal Sejati Abdullah, Muhammad
Jurnal Akuntansi, Manajemen dan Ekonomi Vol 25 No 4 (2023): October - December 2023
Publisher : Faculty of Economics and Business, Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32424/1.jame.2023.25.4.8113

Abstract

This research was conducted to find out specifically about the influence of motivation, compensation, and work environment on employee job satisfaction either partially or simultaneously at PT Mitra Andal Sejati. The type of sampling from this study used probability sampling with a simple random sampling technique which produced 95 respondents. In this research, the authors used the proof of data quality test and classic assumption test, after which it continued with the coefficient of determination test and hypothesis testing (t-test and F-test) using SPSS 25 software. The results showed that 1) there is a partial and significant effect of motivational variables on job satisfaction, 2) there is a partial and significant effect of the compensation variable on job satisfaction, 3) there is a partial and significant effect of the work environment variable on job satisfaction, 4) there is a simultaneous and significant effect of the motivational, compensation variable and work environment on employee job satisfaction.
Ethnobotanical Insights into Plant Diversity Along the Ecotourism Corridor of Mount Prau in Purwosari Village, Indonesia Abdullah, Muhammad; Hakim, Luchman; Siswanto, Dian; Liesnoor Setyowati, Dewi
Jurnal Pendidikan IPA Indonesia Vol. 13 No. 3 (2024): September 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/v30vry34

Abstract

Examining ethnobotany in mountainous regions established as popular hiking destinations is essential for conservation initiatives. In this study, we aim to explore the ethnobotanical knowledge of the indigenous communities and to analyze the plant diversity in the ecotourism corridor to Mount Prau in Purwosari Village, Central Java, Indonesia. Ethnobotanical data was collected through semi-structured interviews with informants recruited via purposive sampling. An exploratory approach was used to inventory plant diversity along the ecotourism corridor of Mount Prau in Purwosari village. Our key informants comprised village officials, community leaders, Mount Prau caretakers, and basecamp managers. The findings indicated that the informants explained a total of 68 plant species, which were utilized by the community for various purposes. These plants served as valuable food sources, medicinal ingredients, and economic value, and they were also used for fodder, building materials, shade, and conservation purposes. In the ecotourism corridor in Purwosari village, which serves as the conservation trail for Mount Prau, a total of 117 plant species were identified through an inventory in this study. Finding some invasive alien plant species, such as Acacia decurens and Clidemia hirta, and an endangered species, Castanopsis argentea, highlights the importance of conservation efforts for protecting and preserving the diverse plant species found along the conservation trail to Mount Prau.
Honda and It’s Dominance in Indonesia: The Unforgettable Key to Customer Satisfaction Eko Oby Purwanto; Abdullah, Muhammad; Ati Chandrasari; Ratna Puspita
Jurnal Ekonomi Vol. 13 No. 02 (2024): Jurnal Ekonomi, Edition April - June 2024
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to explore the relationship between product quality, brand image, purchasing decisions, and customer satisfaction within the context of Honda motorcycle brand. A total of 96 respondents who owned Honda motorcycles in Jakarta participated in the research, employing a non-probability sampling technique, specifically purposive sampling. The research utilized descriptive and inferential analyses, facilitated by the SmartPLS 4.0.9.9 application. The findings revealed several significant relationships: Firstly, both product quality and brand image positively and significantly influence purchasing decisions. Secondly, product quality and brand image also individually contribute positively and significantly to customer satisfaction. Thirdly, purchasing decisions positively and significantly impact customer satisfaction. Furthermore, mediation analysis indicated that product quality and brand image, mediated through purchasing decisions, positively and significantly influence customer satisfaction. This study underscores the critical role of product quality and brand image in shaping purchasing decisions and subsequent customer satisfaction, particularly within the Honda motorcycle brand context. These findings provide valuable insights for marketers and managers aiming to enhance customer satisfaction and brand loyalty.
In-Depth Analysis And Exploration Of Essential Aspects In Employee Performance And Job Satisfaction At PT Paskomnas Niaga Utama Valentine Theresia Simamora; Abdullah, Muhammad; Hary Mulyadi; Wahid Akbar Basudani; Gani Wiharso
Jurnal Ekonomi Vol. 13 No. 02 (2024): Jurnal Ekonomi, Edition April - June 2024
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the relationship between compensation, work environment, job satisfaction, and employee performance at PT Paskomnas Niaga Utama using a path analysis model with Smart PLS software version 4.1.0.0. The exogenous variables considered are compensation and work environment, while the endogenous variables examined are job satisfaction and employee performance. This research also investigates the mediating role of job satisfaction in the relationship between compensation, work environment, and employee performance. The study utilizes a non-probability sampling approach, specifically a saturated sample of 75 respondents, and adopts a quantitative post facto method. The findings reveal that compensation and work environment have a significant positive impact on job satisfaction and employee performance. Additionally, job satisfaction plays a crucial mediating role in the relationship between compensation, work environment, and employee performance. These results contribute to a deeper understanding of the factors influencing job satisfaction and employee performance within the context of PT Paskomnas Niaga Utama. The practical implications of this research emphasize the importance for companies to prioritize compensation strategies and create conducive work environments to enhance employee satisfaction and performance, ultimately facilitating the achievement of organizational goals. However, it's essential to acknowledge the limitations of the study, such as the reliance on a specific sampling method and the potential for other unexplored variables to influence the outcomes. Further research could address these limitations and provide a more comprehensive understanding of the dynamics at play.
Pengembangan Sistem Pakar Konsultasi Keuangan Pribadi Metode 50-30-20 Menggunakan Forward Chaining Abdullah, Muhammad; Suprianto
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol. 6 No. 5 (2025): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmal.v6i5.7207

Abstract

Effective personal financial planning is becoming increasingly important in the modern era. This study aims to develop a personal financial planning application based on an expert system that can assist individuals in making better financial decisions. The research methodology includes the 50-30-20 financial planning method, the forward chaining method for the inference engine, and the Expert System Development Life Cycle method for system development. System testing is conducted using the black box testing method. The research results show that the developed expert system successfully provides fund allocation recommendations that align with users' risk profiles and financial goals. This system not only accurately calculates the appropriate risk scale but also ensures that fund allocation adheres to sound financial principles. Black box testing also confirms that the system functions well and delivers accurate results. Thus, this expert system can serve as an effective tool for individuals in financial planning and achieving long-term financial goals. It has significant potential to enhance financial literacy in society and encourage prudent saving and investment behaviors. Keywords: Expert System, Forward Chaining, Black Box Testing, 50-30-20 Method, Financial Planning
KEPUASAN KERJA KARYAWAN PT. LION SUPERINDO CITRA RAYA TANGERANG: MENGGALI PENGARUH KOMPENSASI DAN LINGKUNGAN KERJA Natasya, Reachel; Putri, Herlina Eka; Indah, Bella; Sastra, Beni; Abdullah, Muhammad
JAMBURA: Jurnal Ilmiah Manajemen dan Bisnis Vol 7, No 3 (2025): JIMB - VOLUME 7 NOMOR 3 JANUARI 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37479/jimb.v7i3.29914

Abstract

Penelitian ini bertujuan untuk mengungkap pengaruh kompensasi dan lingkungan kerja terhadap kepuasan kerja karyawan di PT. Lion Superindo Citra Raya Tangerang. Latar belakang penelitian ini didasarkan pada minimnya studi yang meneliti hubungan antara variabel-variabel tersebut dalam konteks perusahaan ritel di wilayah Tangerang. Metode penelitian yang digunakan adalah survei dengan pendekatan kuantitatif, melibatkan 74 karyawan sebagai responden melalui sensus. Data dikumpulkan menggunakan kuesioner dan dianalisis dengan regresi linier berganda. Hasil penelitian menunjukkan bahwa kompensasi dan lingkungan kerja berpengaruh signifikan terhadap kepuasan kerja karyawan baik secara parsial maupun simultan. Kesimpulan dari penelitian ini adalah bahwa peningkatan kompensasi dan perbaikan lingkungan kerja dapat meningkatkan kepuasan kerja karyawan di PT. Lion Superindo Citra Raya Tangerang. Temuan ini memberikan implikasi praktis bagi manajemen perusahaan dalam merumuskan kebijakan yang lebih efektif untuk meningkatkan kesejahteraan karyawan.
Diversity of Soil Insects on Hiking Trails in the Forest of Mount Prau Muthiati, Aisyaah; Indriyanti, Dyah Rini; Widiyaningrum, Priyantini; Abdullah, Muhammad
Life Science Vol. 14 No. 2 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/unnesjlifesci.v14.i2.31714

Abstract

Soil insects are insects that carry out all their activities in or on the soil surface. Soil insects play a vital role as decomposers, predators, herbivores, and soil structure improvers. This study aims to investigate the diversity of soil insects along the hiking trails of Mount Prau with varying levels of hiking intensity, namely the Patak Banteng trail with high intensity, Dwarawati with moderate intensity, and Purwosari with low intensity. The method used was the pitfall trap, with a total of 120 traps installed along the three trails. Insect identification was conducted in the laboratory using a stereo microscope, and environmental factors such as temperature, humidity, soil pH, light intensity, organic carbon (C) content, nitrogen (N), phosphorus (P), and soil texture were measured as supporting data. The results showed 20 soil insect species from 6 orders and 11 families, with a total of 445 individuals. The order Coleoptera was dominant in all plots, particularly the species Xantholinus sp. (Staphylinidae). The highest Shannon-Wiener diversity index was found in the Dwarawati plot (H’=1.90), followed by Purwosari (H’=1.82), and the lowest in Patak Banteng (H’=1.59). High evenness (E) values (>0.6) and low dominance (D) values.
Co-Authors Abdul Shukora, Nurul Hidayah Abdullah, Saiful Arif Achmad Yusuf Aditya Marianti afandi, iswan Agung Candra Wahyudi Agung Putra, Wahyu Agustina, Dwi Kameluh Ahmad Ahmad Ahmad Baidowi, Zaid Mujaiyid Putra Ahmad, Aji Ahmad, Salmiah Akhmad Rizali Alfi Raihanah Amelia, Indi Amin Retnoningsih Amin Setyo Leksono Andin Vita Amalia Anton Anton Ari Cahaya Puspitaningrum Arifin Arifin Arifin Asyifa, Bella Firdha Asyifa, Bella Firdha Ati Chandrasari Audita Sandra Dinata Badu, Khumaira Marsyahida Badu, Khumairah Bagyo Yanuwiadi Bambang Priyono Bambang Priyono Cahya Agusti, Dirga Cakra Pamungkas, Nandito Chowdhury, Md. Azharul Haque Darus, Mohamad Yusof Dea Amelia, Dea Dewi Liesnoor Setyowati Dewi Mustikaningtyas Dhuta Sukmarani, Dhuta Diah Faridayanti, Ayu Dian Siswanto Dini, Julia Rachma Dyah Rini Indriyanti Edi, Nugroho Eko Oby Purwanto Elsandi, Rippana Ely Rudyatmi, Ely Endah Peniati Enni Suwarsi Rahayu Ependi, Majerin Evi Fatimatur Rusydiyah Fajarini, Nata Maulida Febriana Hamdani, Dhea Febrianti, Firda Cahyaning Febriyanto, Mahendra Noor Firman Heru Kurniawan Fitriani, Laqma Dica Gani Wiharso gasim, Gasim Giovano, Fariz Addo Gouwtami, Marcella Hamzah, Fachrizal Hariri, Rizki Puad Hary Mulyadi Hassan, Masjuki Haji Hendra Setiawan Hidayat, Zein Ichwan Husna, Destri Nurul Husna, Destri Nurul I Fang Sun Idris, Ahmad Syahrin Iftikhar, Momina Ihwan Ihwan Immanuel, Immanuel Indah, Bella Istiqamah Istiqamah Jatmiko, Ruruh Jefri Permadi Kamal, Pasha A.B.M. Khan, Md. Sadril Islam Koly, Nurmiyati Lapung, Jamra Lathifah Mesi Andayani, Tri Loi, Yuniar Luchman Hakim M. Jamhuri M. Jamhuri Maharani, Novanti Dinar Mahfud Mahfud Maisyaroh, Illusiyah Mako, Kusmadi Malayu, Aisa Malinda, Frisca Manotar Tampubolon Manurung, Johan Andrew Margareta Rahayuningsih Margareta Rahayuningsih Nugroho Edi K Maulida Rahmanita Putri Maya Ayu Arieska Ma’ruf, Ahmad Moch. Samsul Arifin Mohamed, Mawada Ahmed Mohd Isa, Mohd Rizal Muhammad Akram Muhammad Nur Hadi Muhammad Rudiansyah Mukhlisin Mukhlisin Musahabib Nugroho Muslikhah Indah Utari Muthiati, Aisyaah Nabilla Putri Sari Fatikhah Nana Kariada Trimartuti Natasya, Reachel Ningsih, Aghi Amalia Nino, Septoriana Maria Nopi Doni Romadhon Nor, Khairul Affendy Md. Novianti, Amalia Novita Sari Novrinda, Riza Nugroho Edi Kartijono Nugroho Edi Kartijono Nugroho Edi Kartijono Nur Kusuma Dewi Nuraini, Febri Nurhalisah, Siti Nurul Hidayah, Rahma Nurwijayanti Oby Eko Purwanto Osa, Hamida Partaya, Partaya Parveen, Mahfuza Pita Loka, Anisa Prasetiyo, Galeh Prasong, Muthiah Priyanti Susanti Priyantini Widiyaningrum Puspita, Afilia Teyja Putri, Herlina Eka Putri, Rennita Aulia R Siti Rukayah Raden Mohamad Herdian Bhakti Rahman, S. M. Mahmudur Rahmansyah Rahmansyah Ratna Puspita Rifaldi, Muhamad Raihan Romdoni, Indi Auliya RR. Ella Evrita Hestiandari Rusydi Rusydi Safitri, Wahayyina Salma, Nur Athiyah Salsabila Nadhifa, Isad Samara, Hanif Sandra, Marcella Saputra, Sopio Sastra, Beni Sigit Saptono Sihaloho, Noverika Siregar, Juni Astri Siti Asiyah Siti Khurotin Siti Nurhalimah Siti Solehah, Siti Solichin Solichin Sri Ngabekti Sri Sukaesih Sun, I Fang Susanti, Priyanti Syahputri, Natasya Aulia syarifuddin Syarifuddin Darajad Tahrim, Tahrim Talitha Widiatningrum Toha, Siti Fauziah Triana Putri, Dian Umaru, Isaac John Unsya Oktami Jannah Valentine Theresia Simamora Vereysita, Sania Wahid Akbar Basudani Wahid Hasyim TRA Beni Wardah Laily Wibowo, Yoga Herlambang W.R. Widarto, Nabilla Umniyah Widiansyah, Andra Wijayanti, Novi Yasmin Kamila Yulaika, Cici Yulianti, Yiyin Tri Septi YUNI KARTIKA SARI Zaki, Khozin Zaneera Malik Zebua, Elvin Agustini Zuhdi, Rafi