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All Journal Journal on Mathematics Education (JME) Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Montessori: Jurnal Pendidikan Kristen Anak Usia Dini Inovasi Matematika (Inomatika) Journal of International Conference Proceedings ROUTERS: Jurnal Sistem dan Teknologi Informasi Journal of Authentic Research
Henry Kurniawan
FTI Untar
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Public Health Social Sciences Other

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DEVELOPING OPEN-ENDED QUESTIONS FOR SURFACE AREA AND VOLUME OF BEAM Kurniawan, Henry; Putri, Ratu Ilma Indra; Hartono, Yusuf
Journal on Mathematics Education Vol 9, No 1 (2018)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.9.1.4640.157-168

Abstract

The purpose of this research was to show open-ended questions about surface area and beam volume which valid and practice, have potential effect. This research is research development which consists of two main phases: preliminary phase (preparation phase and problem design) and formative evaluation phase (evaluation and revision phases). The objective of the study is the students of VIII.2 class of Junior High School 55 Palembang. The result of the study got 9 questions open-ended of surface area and beam volume materials which valid and practical. In addition, there was the potential effect of students' mathematical ability on the open-ended questions that have been given. The result of open-ended problem in the concept potential effect was 77,53%, reasoning ability was 59,79%, the communication ability was 57,02%, and problem solving ability was 67,01 %.DOI: http://dx.doi.org/10.22342/jme.9.1.4640.157-168
PENGUKURAN TINGKAT KEGUNAAN PADA APLIKASI MONITORING PEMASANGAN JARINGAN PT XYZ DENGAN METODE SYSTEM USABILITY SCALE (SUS): SYSTEM USABILITY SCALE Kukuh Puji Lestari, Kukuh Puji Lestari; Asrowardi, Imam; Kurniawan, Henry
ROUTERS: Jurnal Sistem dan Teknologi Informasi Vol. 1 No. 1, Februari 2023
Publisher : Program Studi Teknologi Rekayasa Internet, Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.684 KB) | DOI: 10.25181/rt.v1i1.2663

Abstract

The Network Installation Monitoring Application currently used by PT XYZ in reporting network installation work has never been evaluated for the usability of the application. The measurement of the usability level of the network installation monitoring application is the initial stage to assess the success of website implementation. The research was conducted by giving questionnaires to respondents in the assessment and calculation of the number of sus scores that can be done with a small number of samples. There are 10 questions on the questionnaire with a rating scale of 1 to 5 for a rating of strongly agree. The result of the score calculation shows the number 75.7, so it is included in the good category or the application is feasible to use.
Enhancing Driver Factors of Rice Productivity and Farm Profitability Cahyati, Nia; Noer, Irmayani; Kurniawan, Henry
Journal of International Conference Proceedings Vol 7, No 2 (2024): 2024 ICSM Thailand & AIC Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v7i2.3322

Abstract

The research aimed to analyze the external factors influencing the production and income of lowland rice farmers in South Lampung Regency, Lampung Province. Using both qualitative and quantitative methods, the study followed four stages: data collection, input, analysis, and interpretation. The research involved 50 farmers from the Sidomulyo District, with data gathered through questionnaires and interviews. The study identified key external factors affecting production, including land area (X1), seeds (X2), fertilizer (X3), pesticides (X4), and labor (X5). The production function was modeled as Ln Y = Ln 9.111 + 1.010 Ln X1 + 0.072 Ln X2 – 0.137 Ln X3 + 0.023 Ln X4 + 0.012 Ln X5, showing an increasing return to scale with a significance value 0.05. This suggests that greater use of these production factors enhances rice production. The analysis revealed a good income of IDR 10,592,864.74, with R/C and B/C cash ratios exceeding 1, confirming that lowland rice farming in South Lampung Regency remains profitable. The study concludes that external factors significantly impact rice production and income, with potential for increased profitability through optimized resource use
Vertical Integration of the Rice Market in Lampung Province Nazilah, Nazilah; Noer, Irmayani; Kurniawan, Henry
Journal of International Conference Proceedings Vol 7, No 2 (2024): 2024 ICSM Thailand & AIC Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v7i2.3254

Abstract

Rice prices in Indonesia rose significantly in early 2024, with premium-quality rice reaching IDR 16,410 per kilogram—a 21.3% increase compared to the previous year. These disparities stem from weaknesses in the agribusiness structure, poor market integration, and insufficient market information. This study aims to analyze rice market integration at the farmer-producer and consumer levels in Lampung Province. Secondary time-series data on grain prices at the producer level and retail rice prices at the consumer level from 2018 to 2023 were analyzed using price correlation, price transmission elasticity, and the IMC method. Results indicate a consistent upward trend in both retail rice and farmers’ grain prices, which are positively correlated. However, price transmission elasticity reveals that price changes at the farmer-producer level outpace those at the consumer level. The analysis concludes that rice market integration in Lampung is weak in the short term but demonstrates strong integration over the long term. These findings highlight the need for improved agribusiness structures and better market information systems to enhance market efficiency
Characteristics Of Organic Coffee Consumers Hariyanto, Adi; Noer, Irmayani; Kurniawan, Henry; Analianasari, Analianasari
Journal of International Conference Proceedings Vol 8, No 1 (2025): 2025 ICPM Malaysia Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v8i1.3967

Abstract

Nowadays, people are starting to realize the importance of health and environmental sustainability. Organic coffee is one of the alternatives chosen to support lifestyle and maintain environmental sustainability for consumers and coffee lovers. This study aims to describe the characteristics of respondents who consume organic coffee. The analysis method used in this study is the descriptive analysis method. The sampling method in this study is the accidental sampling technique of 100 respondents. The results of the study show that the majority of organic coffee consumers are men, namely 54% with ages 21-33 years with a percentage of 87% with an unmarried status of 68% with the majority of S1/S2/S3 education of 63% and work as private employees of 41% with an income of Rp 6,000,000 - Rp 9,000,000 of 37%. The primary motivation for consumption is health reasons (78%), followed by environmental concerns (19%). Social media is the primary source of information (53%), and online stores are the most common purchasing channel (52%). These findings indicate that the organic coffee market has significant growth potential, especially through targeted value-based marketing and digital education approaches.
Integrasi Vertikal Pasar Produsen Gabah dengan Pasar Konsumen Beras di Provinsi Lampung Nazilah, Nazilah; Noer, Irmayani; Kurniawan, Henry
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 11, No 2 (2025): Juli 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v11i2.17661

Abstract

Rice is a food ingredient that is a top priority in government food policy.  Rice prices in Indonesia experienced an increase in the first quarter of 2024, rice prices jumped 21.3% compared to last year. The difference in rice prices occurs because of the weak agribusiness structure and market mechanisms that occur in Indonesia.  Market integration analysis can be carried out through several measurements, namely price correlation, price transmission, and Vector Error Correction Model (VECM) analysis. This research aims to analyze the relationship between rice prices at the farmer level, grain producers and consumers in Lampung Province, as well as analyzing the integration of the rice market at the farmer level, grain producers and rice consumers in Lampung Province. The data used is secondary data in the form of time series data, namely data on grain prices at the producer or farmer level and retail rice prices at the consumer level in Lampung Province from 2018 to 2023. The data analysis method uses price correlation analysis and the Vector Error Correction Model (VECM ) using Eviews.10 software. The research results show that the price of rice at both market levels, namely between the grain producer market and the rice consumer market in Lampung Province, is positively correlated.  Based on the results of the market integration analysis, it shows that the rice market in Lampung Province has not been fully integrated in the short term, while the results of the cointegration test show that in the long term the market at the grain producer and retailer level in Lampung Province is well integrated, so it can be concluded that the rice market in the Province In the short term, Lampung has not been well integrated, while in the long term the rice market in Lampung Province is integrated.
Student Difficulties in Solving Open-Ended Model Mathematics Problems Kurniawan, Henry; Zabeta, Mewa; Prasetyo, Krisno Budi
Jurnal Inovasi Matematika Vol 5 No 1 (2023): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v5i1.350

Abstract

This descriptive-qualitative study aims to discover factors that influence students' difficulties in solving non-routine problems. The researchers employed open-ended questions that had previously been developed by researchers, ensuring that they were valid, practical, and had potential effects. The researchers brought up this topic because non-routine questions can help students improve their mathematical skills. The study's approach consisted of three stages: preparation, implementation, and data analysis. The research subjects were 31 eighth-grade students from one of Belitang's junior high schools. Data was gathered through observation, interviews, and testing. Observation was utilized to collect data on the learning process, while interviews were used to understand more profoundly and directly about students' difficulties in addressing non-routine tasks. The test was then administered to assess students' ability to solve non-routine tasks. The data was evaluated qualitatively using descriptive analysis. Based on observation and interview data, several factors contributed to students' difficulty in solving non-routine problems, including the fact that students had never worked on non-routine problems during the learning process in class, and the teacher's book only contained routine problems. In relation to the foregoing, the exam results show that students' ability to solve non-routine problems remains poor, with as many as 58.07% receiving poor grades, 19.35% receiving moderate grades, and only 22.58% receiving good grades. With this research, it is envisaged that teachers will assign numerous non-routine tasks in class in the future, allowing students' mathematical abilities to be thoroughly developed.
Motivasi Konsumen terhadap Keputusan Pembelian Kopi Organik Hariyanto, Adi; Noer, Irmayani; Kurniawan, Henry
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 12, No 1 (2026): Januari 2026
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v12i1.20688

Abstract

This study aims to analyze the influence of consumer motivation on the purchase decision of organic coffee in Bandar Lampung. The focus is to determine the extent of intrinsic and extrinsic motivation's role in shaping consumer behavior. The research was conducted from January to March 2025 using a quantitative approach and survey method. A total of 100 respondents were selected through accidental sampling. Data were analyzed using the SEM-PLS method with SmartPLS 3.0 software. The results show that motivation has a significant direct effect on purchase decisions. This indicates that highly motivated consumers—whether due to health, environmental, or ethical reasons—tend to be more committed in buying organic coffee. These findings provide strategic implications for organic coffee businesses in developing value-based marketing strategies.
Pengaruh Pajak Kendaraan Bermotor, Bea Balik Nama Kendaraan Bermotor dan Pajak Air Permukaan Terhadap Pendapatan Asli Daerah Provinsi Lampung Ramadan, Ivan Mahardika; Dewi, Anita Kusuma; Kurniawan, Henry
Journal of Authentic Research Vol. 5 No. 1 (2026): Februari
Publisher : LITPAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/wvawva49

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh Pajak Kendaraan Bermotor, Bea Balik Nama Kendaraan Bermotor, dan Pajak Air Permukaan terhadap Pendapatan Asli Daerah Provinsi Lampung. Penelitian menggunakan pendekatan kuantitatif dengan jenis penelitian asosiatif kausal. Data yang digunakan merupakan data sekunder yang diperoleh dari Badan Pendapatan Daerah Provinsi Lampung dengan cakupan seluruh kabupaten dan kota di Provinsi Lampung selama periode 2020–2023. Teknik pengambilan sampel menggunakan sampel jenuh, sehingga seluruh populasi dijadikan sebagai sampel penelitian. Analisis data dilakukan menggunakan regresi linier berganda setelah model memenuhi uji asumsi klasik. Hasil penelitian menunjukkan bahwa Pajak Kendaraan Bermotor, Bea Balik Nama Kendaraan Bermotor, dan Pajak Air Permukaan secara simultan berpengaruh terhadap Pendapatan Asli Daerah Provinsi Lampung. Secara parsial, Pajak Kendaraan Bermotor dan Bea Balik Nama Kendaraan Bermotor berpengaruh signifikan terhadap Pendapatan Asli Daerah, sementara Pajak Air Permukaan juga menunjukkan pengaruh meskipun dengan kontribusi yang relatif lebih kecil. Temuan ini menegaskan pentingnya optimalisasi pengelolaan pajak daerah sebagai upaya memperkuat kapasitas fiskal dan kemandirian keuangan daerah. This study aims to analyze the effect of Motor Vehicle Tax, Motor Vehicle Title Transfer Fee, and Surface Water Tax on the Regional Original Revenue of Lampung Province. The research employs a quantitative approach with a causal associative design. Secondary data were obtained from the Regional Revenue Agency of Lampung Province, covering all regencies and cities in Lampung Province during the period 2020–2023. A saturated sampling technique was applied, in which all members of the population were included as research samples. Data analysis was conducted using multiple linear regression after the regression model satisfied the classical assumption tests. The study results indicate that Vehicle Tax, Vehicle Ownership Transfer Fee, and Surface Water Tax simultaneously have no significant effect on the Original Local Revenue of Lampung Province. Partially, Vehicle Tax and Vehicle Ownership Transfer Fee have a significant effect on the Original Local Revenue, while Surface Water Tax also shows an effect, albeit with a relatively smaller contribution. These findings emphasize the importance of optimizing local tax management as an effort to strengthen fiscal capacity and financial independence of the region. In practice, the regional government is advised to enhance supervision and services in the collection of Vehicle Tax and Vehicle Ownership Transfer Fee, as well as to utilize digital technology to increase public compliance, thereby maximizing the contribution of local taxes.
Studi Eksposisi Pola Asuh Orang Tua Terhadap Anak Berdasarkan Ulangan 6:4-9 Simanjuntak, Ferry; Kurniawan, Henry
Montessori Jurnal Pendidikan Kristen Anak Usia Dini Vol. 2 No. 1 (2021): Montessori Jurnal Pendidikan Kristen Anak Usia Dini
Publisher : Institut Agama Kristen Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51667/mjpkaud.v2i1.599

Abstract

Fenomena yang dapat dijumpai dalam pengasuhan anak di dalam keluarga adalah adanya “mata rantai” pengasuhan yang buruk dari generasi ke generasi, yang disebabkan karena orang tua gagal dalam mengasuh dan mendidik anak. Penelitian yang digunakan dalam penulisan ini adalah metode kualitatif studi pustaka menemukan adanya “mata rantai” tujuh kesenjangan yang terjadi pada pengasuhan anak yang menyebabkan kegagalan orang tua dalam mengasuh dan mendidik anak. Kemudian melalui studi eksposisi berdasarkan Ulangan 6:4-9 yang mengandung prinsip pengasuhan alkitabiah, ditemukan bahwa “mata rantai” tujuh kesenjangan pengasuhan orang tua itu disebabkan karena orang tua tidak hidup dengan komitmen rohani.
Co-Authors Analianasari Analianasari Cahyati, Nia Dewi, Anita Kusuma Hariyanto, Adi Imam Asrowardi Kukuh Puji Lestari, Kukuh Puji Lestari Merliza, Pika Mewa Zabeta, Mewa Nazilah Nazilah, Nazilah Noer, Irmayani Prasetyo, Krisno Budi Ramadan, Ivan Mahardika Ratu Ilma Indra Putri Umam, Syifaul Yusuf Hartono