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All Journal Promotif: Jurnal Kesehatan Masyarakat Indonesian Journal of Agricultural Research Jurnal Agronomi Tanaman Tropika (JUATIKA) Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Kolaboratif Sains International Journal of Community Service (IJCS) Jurnal Marine Inside Asian Journal Science and Engineering Journal of Management Entrepreneur and Cooperative Ruang Jurnal Peweka Tadulako Medika Tadulako: Jurnal Ilmiah Kedokteran Fakultas Kedokteran Jurnal Profesi Guru Indonesia
Sarifuddin
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The Utilization of Vertical Wind Turbines for Micro Electricity Generation Budi Riyanto; Abdi Seno; Naf'an Arifian; Sarifuddin
Asian Journal Science and Engineering Vol. 3 No. 1 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i1.1803

Abstract

This research is motivated by the rapidly increasing demand for electricity driven by modernization and industrialization, as well as by environmental challenges resulting from reliance on non-renewable fossil energy sources, thereby prompting the search for clean and efficient alternative energy. The aim of this study is to examine the potential and performance of vertical wind turbines as an innovative solution for micro power generation by assessing the efficiency of converting wind energy into electricity and evaluating its economic aspects. An observational research method was employed, incorporating literature review, team discussions, design processes, device construction, and the implementation of testing through both laboratory and field methods. The study was conducted at the Politeknik Pelayaran Sumatera Barat, where the turbine was installed on the roof of a classroom building in a coastal area, taking advantage of favorable geographic conditions and supportive wind characteristics. Data collection involved direct measurements of parameters such as wind speed, turbine and generator RPM, and electrical voltage over designated time intervals, thereby producing data on the variability and operational performance of the turbine. Results indicate that the vertical wind turbine is capable of generating electricity optimally despite fluctuations in wind speed, and it offers advantages in terms of installation flexibility, low operational costs, and energy efficiency with room for improvement. Consequently, the study recommends the development of enhanced aerodynamic designs and more optimal driving mechanisms to accommodate dynamic operational conditions, thereby facilitating the widespread implementation of this solution to support the decentralization of renewable energy systems, reduce reliance on fossil fuels, and strengthen the sustainability of electricity supply.
Ketersediaan dan Kebutuhan RTH Publik sebagai Infrastruktur Evakuasi Bencana di Kawasan Perkotaan: Studi Kasus Kecamatan Palu Timur, Kota Palu Basri, Iwan Setiawan; Arifin, Rosmiaty; Sarifuddin; Pelealu, Regina Excelsia
Jurnal Peweka Tadulako Vol. 4 No. 2 (2025): Jurnal PeWeKa Tadulako
Publisher : Prodi PWK Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/peweka.v4i2.65

Abstract

The demand for space in urban areas is significant due to population and economic growth. As a result, the need for space has increased sharply. The most obvious impact is the expansion of the existence of Green Open Space (GOS). This study aims to assess the availability of public GOS in East Palu District by examining its proportion relative to the total land area and population, its potential role in disaster evacuation, and the identification of land suitable for future development. A descriptive quantitative method is employed, referencing national regulations such as Law No. 26 of 2007 and Ministry of Public Works Regulation No. 5 of 2008. Geographic Information Systems (GIS) were used for land mapping analysis. The findings indicate that in 2023, East Palu has 44.11 hectares of public GOS. With the district covering 970 hectares, the ideal allocation for green spaces is 149.9 hectares (20%). Given a population of 44,491, the required GOS amounts to 889.82 hectares, revealing a significant shortfall of 845.71 hectares. Furthermore, the identification of only 44.85 hectares of land as suitable for further GOS development remains insufficient. GOS is essential not only for aesthetics and recreation but also as crucial infrastructure for enhancing urban resilience during disasters. It is therefore vital for agencies involved in land management, urban planning, and disaster response to collaborate, ensuring that public GOS is prioritized in sustainable city planning.
Empowering School Students Through Simple Digital Marketing Portfolio Creation Winahyu, Pawestri; soraya, Zalkha; Satoto, Eko Budi; Adelia, Sherry; Sarifuddin
International Journal of Community Service (IJCS) Vol. 4 No. 2 (2025): July-December
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v4i2.1530

Abstract

This community service programme employed a participatory, experiential learning approach to equip secondary school students at Sangkhom Islam Wittaya School, Hat Yai, Thailand, with basic digital marketing skills through the creation of digital portfolios. Thirty students, supported by three teachers, took part in interactive lectures, demonstrations, guided practice, project-based learning, and feedback sessions. Quantitative results from paired sample t-tests showed a significant improvement in knowledge and skills, with mean scores increasing from 55.40 (SD = 8.25) in the pre-test to 78.30 (SD = 7.10) in the post-test (t(29) = 11.25, p < 0.05). Qualitative findings reinforced these outcomes: students demonstrated active participation and creativity, reported greater confidence in applying digital concepts, and produced coherent portfolios; teachers also confirmed improvements in digital competencies aligned with the school’s literacy objectives. Overall, the programme proved effective in delivering practical and relevant learning experiences that significantly enhanced students’ digital literacy and entrepreneurial potential in line with the demands of the digital era.
Efforts to Improve Learning Outcomes of Islamic Education Students with the Problem Based Learning Model at SD Negeri 0115 Sibuhuan Hasibuan, Misran Ansori; Sarifuddin; Nasution, Kholida Hafni
Jurnal Profesi Guru Indonesia Vol. 1 No. 4 (2024): DECEMBER 2024
Publisher : MANDAILING GLOBAL EDUKASIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62945/jpgi.v1i4.400

Abstract

This study aims to improve student learning outcomes in Islamic religious education learning using the Problem Based Learning Learning Model. This study is a classroom action research that uses four steps, namely planning, action, observation and reflection. The subjects of this study were elementary school students. The data for this study were obtained using test and observation techniques. Tests are used to measure learning and observations are used to analyze teacher and student learning activities. The data analysis technique used in this study is descriptive statistics by comparing the results obtained with indicators of research success. The results of the study indicate that the Problem Based Learning Learning Model can improve student learning outcomes in Islamic religious education learning. This can be seen from the increase in the percentage of student learning completion in each cycle with details of the pre-cycle 40.89%, the first cycle 68.87% and in the second cycle increased to 90.32%. Thus, the Problem Based Learning Learning Model can be used as an alternative to improve student learning outcomes in Islamic religious education learning.
User Satisfaction With Inaportnet Services at PT. Indonesian Maritime Penascop Palembang Branch Retnoningrum, Puji; Sarifuddin; Fedriani, Geeta
Dinasti International Journal of Economics, Finance & Accounting Vol. 5 No. 3 (2024): Dinasti International Journal of Economics, Finance & Accounting (July - August
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijefa.v5i3.2757

Abstract

User satisfaction can be defined as the user's feelings resulting from comparing the user's expectations of the product with actual results, achieved through satisfaction with the information system. User satisfaction can be seen from several aspects, namely the content aspect, the accuracy aspect, the ease of use aspect, the form aspect, the time aspect according to Doll & Torkzadeh (1998). Inaportnet is a system based on an internet/web service network related to ship arrival and departure services as well as loading and unloading activities. This research uses qualitative research methods. With data collection techniques through interviews, observation and literature study. The results of this research are that the content aspect is satisfactory with access links, ship service forms and clear directions according to user needs. The accuracy aspect has been satisfactory by providing precise and accurate information and up to date services. The ease of use aspect has been satisfactory with a web address that is easy to find, helps users work and is easy to access. The form (format) aspect is not satisfactory with the appearance of the service being less attractive. The time aspect is not satisfactory for users because it does not comply with the standard reference for services using Inaportnet. Some of the obstacles that have been experienced by Inaportnet service users in carrying out the ship service process are poor service quality, network disruption, lack of science and technology, complicated usage procedures, and payment settlement problems.
Karakteristik dan Etiologi Dominan Penyebab Individu Suspek Infeksi di Rumah Sakit Undata Palu: Characteristics and Etiology of Dominant Causes of Individuals Suspected of Infection at Undata Hospital, Palu Sarifuddin; Aristo; M. Sabir; Ary Anggara; Siti Nurhasanah; Ratna Sari Dewi; Mufdiah Nurriza
Jurnal Kolaboratif Sains Vol. 7 No. 1: JANUARI 2024
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v7i1.4883

Abstract

Latarbelakang. Pandemi Covid-19 menyebabkan pembatasan kegiatan masyarakat, termasuk pemberian layanan Kesehatan yang terbatas dalam mengurangi penyebaran penyakit dan memberikan dampak terhadap penurunan tingkat layanan di Rumah Sakit khususnya pasien yang menjalani rawat jalan dan rawat inap. Tujuan penelitian ini adalah untuk mengetahui karakteristik suspek infeksi rawat jalan dan rawat inap Selama Pemberlakuan Pembatasan Kegiatan Masyarakat (PPKM) di Kota Palu. Metode Penelitian dengan pendekatan penelitian deskriptif, data rawat jalan dan rawat inap diperoleh dari rekam medis sebanyak 190 responden selama periode 2020-2021 yang memiliki sifat karakteristik tertentu (sesuai kriteria)inklusi penelitian. Hasil didapatkan dari 190 responden berdasarkan jenis kelamin (laki-laki 82.1%, perempuan 17.9%), Usia terbanyak (41-55 tahun) 67(35.3%), layanan (Rawat Jalan 132 (69.5%) dan Rawat Inap 58 (30.5%), keluhan Demam 89 (46.8%), kultur Feses 152 (80%), bakteri terbanyak E.coli 129 (67.9%), Stapylococcus aureus 23 (12.1%), Streptococcus pneumoniae 13 (6.8%), Pseudomonas aeruginosa 8(4.2%), Proteus mirabilis 7(3.7%), Klebsiella sp 6(3.2%), S.typhi 4(2.1%), kebiasaan merokok (ya 121(63.7%) tidak 45(23.7%), Cuci tangan (selalu 149(78.4%) kadang-kadang 27(14.2%, tidak tahu 14(7.4%), Pekerjaan (PNS 96(50.5%) dan buruh harian dan nelayan masing-masing 14(7.4%) lain-lain 3(1.6%), konsumsi antiviral 177(93.2%), konsumsi analgetik 169(88.9%), Riwayat konsumsi antibiotik 182(95.8%), tes swab antigen 186(97.9%), suspek diagnosis infeksi ditemukan TB Paru 90(47.4%), Diare 19(10%), ISK 23(12.1%), Psoriasis 13(6.8%), tifoid 12(6.3%), dan terendah Pneumonia 3(1.6%), kusta 2(1.1%). Isolat terbanyak di layanan rawat jalan ditemukan terbanyak adalah E.coli 38(28.8%) dan Stapylococcus aureus 7(5.3%) sedangkan di layanan Rawat Inap terbanyak E.coli 28(48.3%) dan Staphylococcus aureus 5(8.6%). Kesimpulan: Suspek infeksi Rawat Jalan sebanyak 132(69.5%) dan Rawat Inap sebanyak 58(30.5%), suspek penyakit terbanyak Rawat Jalan adalah tuberculosis 88(66.7%) dan Rawat Inap ISK 23(39.6%) dan isolat terbanyak Rawat Jalan adalah E.coli dan S.aureus (28.8%) dan 5.3%) dan Rawat Inap isolat terbanyak E.coli dan S.aureus (48.3%) dan (8.6%).
Evaluasi dan Penguatan Amenitas–Homestay Berbasis CHSE, GSTC, dan SUPW: Studi Kasus Destinasi Wisata Danau Paisu Pok: Evaluation and Strengthening of Homestay Amenities Based on CHSE, GSTC, and SUPW: A Case Study of the Danau Paisu Pok Tourist Destination Setiawan Basri, Iwan; Arifin, Rosmiaty; Ilham, Muhammad; Sarifuddin; Ariesthy Djafar, Naila
Jurnal Kolaboratif Sains Vol. 9 No. 2: Februari 2026
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v9i2.10376

Abstract

Destinasi wisata alam skala kecil sangat bergantung pada kualitas amenitas dan homestay, namun kinerjanya jarang dinilai dengan kerangka terpadu. Studi ini mengidentifikasi potensi dan masalah fasilitas di Danau Paisu Pok, menganalisis faktor internal dan eksternal, serta merumuskan strategi penguatan amenitas dan homestay berkelanjutan. Metode deskriptif evaluatif digunakan dengan instrumen CHSE SNI 9042:2021, kriteria destinasi GSTC v2.0, dan standar usaha pondok wisata (homestay) Indonesia. Data diperoleh melalui observasi, wawancara, dan telaah dokumen, dianalisis deskriptif, lalu diuji melalui SWOT dengan dukungan matriks IFE dan EFE. Hasil menunjukkan mayoritas indikator CHSE terutama aspek keselamatan dan lingkungan masih belum memenuhi, sedangkan homestay baru sebagian memenuhi layanan dasar dan persyaratan keselamatan. Pemetaan GSTC menempatkan pilar tata kelola dan lingkungan pada tingkat awalmenengah. Skor IFE 2,68 dan EFE 2,64 menempatkan destinasi pada kuadran “grow-and-fix-essentials”, sehingga pengembangan harus berjalan paralel dengan perbaikan layanan esensial. Strategi prioritas meliputi pemenuhan layanan CHSE di koridor pengunjung, penguatan wayfinding dan fungsi visitor desk, penyusunan SOP homestay, penyediaan fasilitas cuci tangan dan pemilahan sampah, serta kemitraan dengan perguruan tinggi untuk dukungan desain dan pemantauan.
Dynamics of Capsaicin Content of Red Chili (Capsicum annum L.) under Various Nutrient and Fertilization Statuses Sihombing, Okto Prandi; Sarifuddin; Sembiring, Mariani
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4895

Abstract

Accurate fertilization is an important factor affecting plant productivity. Indonesia currently ranks fourth amongthe world's largest red chili producers, but its productivity remains relatively low. Efforts to increase productivitycan be achieved through soil and plant analysis to provide site-specific fertilizer recommendations tailored toplant needs. This study aims to develop site-specific fertilizer recommendations to increase red chili productivityand to analyze the relationship between plant nutrient status and capsaicin content in Lubuk Cuik Village, LimaPuluh Pesisir District, Batubara Regency. The study was conducted at an altitude of 8 m above sea level using asurvey method. Plant samples were selected purposively based on differences in variety and harvest time, thenanalyzed in the laboratory as a basis for compiling fertilizer recommendations. The results showed that thenutrient status of red chili plants at the study site remained below optimal levels. Therefore, site-specificfertilizer recommendations were developed using a combination of three approaches: maintenance, sufficiency,and build. The fertilization guidelines were designed to achieve a yield of 21 tons/ha for the following varieties:Jitu (Urea 531 kg/ha, TSP 92 kg/ha, KCl 258 kg/ha), Laju (Urea 505 kg/ha, TSP 96 kg/ha, KCl 258 kg/ha), andlocal variety (Urea 513 kg/ha, TSP 94 kg/ha, KCl 255 kg/ha), assuming that crop residues are returned to thefield. Multiple regression analysis indicated that the relationship between nutrient status and capsaicin contentwas not statistically significant (R² = 0.084). However, nitrogen (N) and sulfur (S) tended to increase capsaicinlevels, whereas potassium (K) and phosphorus (P) tended to decrease them. The novelty of this study lies in thesimultaneous use of three approaches to link plant nutrient status analysis with site-specific fertilizerrecommendations, which is relatively new in red chili research.
The Effect of Candlenut Shell Ash and Biochar and NPK Fertilization on Corn (Zea mays L.) Growth and Production Sembiring, Tesalonika; Sarifuddin; Mukhlis
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4966

Abstract

Corn (Zea mays L.) is a strategic food crop that requires an adequate supply of essential nutrients, particularlynitrogen, phosphorus, and potassium, to support optimal growth and yield. The increasing accumulation ofcandlenut shells, which are difficult to decompose due to their high lignin content, has contributed toenvironmental pollution. Processing candlenut shells into ash or biochar can enhance their value. Both candlenutshell ash and biochar can serve as soil ameliorants, improving soil fertility by increasing soil pH, organic carbon,and cation exchange capacity (CEC), especially in ultisol soils characterized by low fertility. Ultisol soils aretypically acidic, have high aluminum saturation, and low CEC. Ash, an inorganic material rich in calcium, isproduced through complete combustion, whereas biochar is a carbon-rich material generated via pyrolysis. Thisstudy aimed to evaluate the effects of candlenut shell ash and biochar on the availability of N, P, and K nutrientsin corn (Zea mays L.) cultivated in Samosir Regency. The research was conducted in Pangururan, Samosir Regency,from June to November 2024. The results demonstrated that applying candlenut shell ash and biochar asameliorants enhanced corn growth. Candlenut shell ash was more effective than biochar at improving NPKfertilizer efficiency. Specifically, the application of candlenut shell ash at 10 tons per hectare, combined with asingle NPK fertilizer dose (treatment A12), yielded the best corn growth. Based on these findings, the use ofcandlenut shell ash is recommended for corn cultivation on ultisol soils, as it more effectively increases nutrientavailability and plant growth, thereby potentially enhancing corn productivity sustainably.
Co-Authors Abdi Seno Agung Pratama Amylia, Amanda Verina Andi Herniwati Andi Nur Asrinawaty Ariesthy Djafar, Naila Aristo Ary Anggara Aziz Budianta Budi Riyanto Deltri Dikwardi Eisenring Eko Budi Satoto Erduandi Fedriani, Geeta Gasong, Ristasya Wini Hamidah Hanum Hasibuan, Misran Ansori Heru Widada Imam Safii Irfandi Iwan Setiawan Basri Jurair Patunrangi Kelo, Jusnan Luthfiah M. Sabir Mariani sembiring Mariela Kaloan Mufdiah Nurriza Muh Nur Ikhsan Liwang Muhammad Ilham Muhammad Najib Mukhlis Nabil Rabbani Putra Permana Naf'an Arifian Nasution, Kholida Hafni Noka, Isara Abda Pelealu, Regina Excelsia Ratna Sari Dewi Ressy Dwiyanti Retnoningrum, Puji Ria Sulistiana Rosmiaty Arifin Sembiring, Tesalonika Sherry Adelia Sihombing, Okto Prandi Siti Nurhasanah Solagracya, Jogy Hendro Pratama Winahyu, Pawestri Zalkha Soraya