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All Journal JURNAL SAINS PERTANIAN EQUATOR PREMISE LAW JURNAL JIKSI (Jurnal Ilmu Komputer dan Sistem Informasi) ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED KOVALEN: Jurnal Riset Kimia Faktor Exacta JURNAL EDUCATION AND DEVELOPMENT Jurnal Serambi Engineering JURNAL GLOBAL EDUKASI Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Ilmiah Lingkungan Kebumian Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Proceeding International Seminar of Islamic Studies THEOREMA : The Journal Education of Mathematics Gemilang: Jurnal Manajemen dan Akuntansi Teknologi dan Industri Pertanian Indonesia Jurnal Ilmiah Mahasiswa Pertanian
Darwin Darwin
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Supervisi Kepala Sekolah Terhadap Pelaksanaan Metode Diskusi dan Kerja Kelompok Guru PKn Darwin Darwin
JURNAL GLOBAL EDUKASI Vol 3, No 5 (2020): April 2020
Publisher : JURNAL GLOBAL EDUKASI

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

Abstract

Abstract: This research was motivated by the teacher's lack of understanding of techniques and how to integrate national character development in teaching and learning activities, especially at SDN 010106 Sei Silau Barat. The objectives of this School Action Research are: (1) Supervision of the Principal of the Implementation of Discussion and Group Work Methods by PKN Teachers in Increasing Student Interest in Class V SDN 010106 Sei Silau Barat Kec. Setia Janji TP. 2019/2020; (2) Carry out an analysis of PKN teachers in teaching and learning activities which have implications for increasing student participation or activity in implementing the values of national character development, such as the value of hard work, cooperation, mutual respect and so on. Data were collected through observation, interviews, tests, and study documentation. This school action research was carried out in 2 cycles, consisting of planning, acting, observing and reflecting. Keywords: discussion; group work; learning achievement; principal supervision  Abstrak: Penelitian ini dilatar belakangi masih kurangnya pemahaman guru tentang teknik dan cara mengintegrasikan pembangunan karakter bangsa dalam kegiatan belajar mengajar, khususnya di SDN 010106 Sei Silau Barat. Adapun tujuan dari Penelitian Tindakan Sekolah ini adalah: (1) Supervisi Kepala Sekolah Terhadap Pelaksanaan Metode Diskusi dan Kerja Kelompok Oleh Guru PKn Dalam Meningkatkan Minat Belajar Siswa Kelas V SDN 010106 Sei Silau Barat Kec. Setia Janji TP. 2019/2020; (2) Melaksanakan analisis terhadap Guru PKn dalam kegiatan belajar mengajar yang berimplikasi pada peningkatan partisipasi atau keaktifan siswa terhadap keterlaksanaan nilai-nilai pembangunan karakter bangsa, seperti nilai kerja keras, kerjasama, saling menghargai dan sebagainya. Data dikumpulkan melalui observasi, wawancara, test, dan study dokumentasi. Penelitian tindakan sekolah ini dilaksanakan dalam 2 siklus, terdiri dari perencanaan, pelaksanaan tindakan, pengamatan dan refleksi. Kata kunci: supervisi kepala sekolah; metode diskusi; kerja kelompok; prestasi belajar
PENGARUH MODEL PEMBELAJARAN RECIPROCAL TEACHING TERHADAP HASIL BELAJAR MATERI BARISAN DAN DERET PADA SISWA KELAS XI SMK NEGERI 11 MALUKU TENGAH Safarin Zurimi; Darwin Darwin; Yati Tuasamu; Norce Rupiasa
THEOREMA: The Journal Education of Mathematics Vol 3 No 2 (2022): THEOREMA: The Journal Education of Mathematics
Publisher : Universitas Pendidikan Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36232/theorema.v3i2.3133

Abstract

Berdasarkan hasil observasi peneliti pada sekolah SMK Negeri 11 Maluku Tengah, pada tanggal 25 mei 2021 dengan guru mata pelajaran matematika, bahwa masih banyak kekurangan dalam metode pembelajaran matematika yaitu, metode penyampaian materi hanya berlangsung satu arah atau dikenal dengan metode ceramah, kurangnya keterlibatan siswa dalam proses pembelajaran sehingga hasil belajar matematika siswa masih banyak di bawah nilai KKM, sehingga peneliti tertarik untuk mengadakan penelitian dengan tujuan untuk mengetahui hasil belajar materi barisan dan deret. Penelitian yang dilakukan merupakan suatu penelitian dengan jenis penelitian eksperimen (experimen) karena tidak semua variabel yang muncul dalam kondisi eksperimen dapat diatur dan dikontrol secara ketat. Sampel dalam penelitian ini adalah siswa kelas XI1 SMK Negeri 11 Maluku Tengah tahun ajaran 2021/2022 yang berjumlah 15 siswa dengan pengambilan sampel jenuh. Penelitian yang dilakukan terhitung mulai tanggal 30 mei – 30 juni 2021. Dengan menggunakan data analisis regresi linier sederhana. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa nilai rata-rata siswa pada tes awal adalah 56.67 dan nilai rata-rata pada tes akhir adalah 80.73. Sedangkan dari perhitungan t-tes diperoleh thitung -0.1225 < ttabel 2.048, berdasarkan pengujian hipotesis maka dapat disimpulkan bahwa H1 diterima dan H0 ditolak.
Studi Performansi Alat Pemanas Air dengan Menggunakan Kolektor Surya Plat Datar Darwin Darwin; Hendri Syah; Sujan Yadi
Jurnal Teknologi dan Industri Pertanian Indonesia Vol 5, No 3 (2013): Vol.(5) No.3, October 2013
Publisher : Agricultural Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.195 KB) | DOI: 10.17969/jtipi.v5i3.1979

Abstract

This study aims to analyze the performance of the water heater using solar collector flat plate type. Efficiency performance of solar collectors in the process of heating the water also becomes the main focus in this study. This study was conducted with two experiments consisting of a flat plate solar collector with horizontal and flat plate solar collector with tilt angle 22o. Experiments carried out with 8 hours of testing within 6 days. Water was circulated into the collector pipe using a pump capacity of 125 Watts. From the research it is known that the amount of electrical energy required by pump for 6 days with 8 -hour time trial experiment, was about 21.6 MJ. The rate of flow of the fluid in the collector pipe is 2x10 - 5 m3/s. The plate solar collector with a slope of 22o reached the highest average temperature in the third experiment, which was about 64.7 ° C; however, the lowest average temperature was found in the horizontal collector (0o) at the third experiment, which was about 47.5 ° C. It was found that the highest efficiency obtained at the collector plate with 22o tilt angle was equal to 76 % while the lowest efficiency was obtained at a horizontal collector with an efficiency of 53.6 %. Keywords: solar collectors, flat plate, water heater 
Aplikasi Teknologi Watertreatment Dengan Menggunakan Metode Elektrokoagulasi Untuk Perbaikan Kualitas Air Limbah Tahu Indah Nandayani; Darwin Darwin; Ratna Ratna
Jurnal Ilmiah Mahasiswa Pertanian Vol 6, No 4 (2021): November 2021
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.658 KB) | DOI: 10.17969/jimfp.v6i4.18011

Abstract

Abstrak. Limbah cair industri tahu umumnya memiliki kandungan COD, BOD, Electrical Conductivity, Alkalinity, VS dan TS yang melebihi baku mutu yang dipersyaratkan. Elektrokoagulasi merupakan salah satu alternatif pengolahan limbah yang memanfaatkan listrik dan plat logam sebagai anoda dan katoda. Tujuan penelitian ini adalah untuk mengetahui pengaruh waktu kontak terhadap parameter uji Penelitian dilakukan dengan skala laboratorium menggunakan reaktor Elektrokoagulasi dengan menggunakan bantuan Plat Aluminium sebagai penghantar listrik. Waktu kontak yang digunakan 120 menit. Hasil penelitian menunjukkan proses elektrokoagulasi terbaik dengan dengan waktu pengolahan 120 menit pada proses  penelitian dengan sumber listrik konvensional (PLN). Proses elektrokoagulasi dengan biaya operasi terkecil adalah menggunakan sumber listrik dari power supplay adaptor,Penelitian ini dilakukan dengan dua kali percobaan dan sampel cairan limbah tahu  digunakan sebanyak 3500 ml.Application of Water treatment Technology Using Electroagulation Method for improving wastewater qualityAbstract : Tofu industrial wastewater generally contains COD, BOD, Electrical Conductivity, Alkalinity, VS and TS which exceed the required quality standards.Electrocoagulation is an alternative waste treatment that utilizes electricity and metal plates as anode and cathode. The purpose of this study was to determine the effect of contact time on test parameters. The research was conducted on a laboratory scale using an electrocoagulation reactor using an aluminum plate as an electrical conductor. The contact time used is 120 minutes. The results showed the best electrocoagulation process with a processing time of 120 minutes in the research process with a conventional power source (PLN). The electrocoagulation process with the lowest operating cost is to use a power source from the power supply adapter.This research was carried out with two experiments and 3500 ml of tofu waste liquid sample was used.
Etos Kerja Sebagai Variabel Dominan Pada Model Pengembangan Kinerja Pegawai Atas Variabel Adaptasi Digital, Komitmen Organisasi, Adversity Quotient, Dan Etos Kerja Yan Azhari; Nasrun Nasrun; Darwin Darwin
ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED Vol 13, No 2 (2023): ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED
Publisher : FIP Unimed

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/esjpgsd.v13i2.46490

Abstract

Tujuan Penelitian ini adalah untuk menganalisis pengaruh adaptasi digital dan komitmen organisasi terhadap Adversity Quotient Pegawai; pengaruh adaptasi digital dan komitmen organisasi terhadap etos kerja pegawai; pengaruh adaptasi digital, komitmen organisasi, Adversity Quotient dan etos kerja terhadap kinerja pegawai. Penelitian ini dilakukan pada pada Tenaga Kependidikan di Universitas Negeri Medan dengan melibatkan 130 orang sebagai sampel. Untuk pengumpulan data dilakukan dengan menggunakan kuesioner dengan lima pilihan jawaban. Instrumen yang digunakan terlebih dahulu diujicobakan kepada responden di luar sampel. Hasil penelitian menunjukkan: (1) Adaptasi Digital berpengaruh langsung positif terhadap Adversity Quotient sebesar ρ31=0,425; (2) Komitmen Organisasi berpengaruh langsung positif terhadap Adversity Quotient sebesar ρ32=0,500; (3) Adaptasi digital berpengaruh langsung positif terhadap etos kerja sebesar ρ41=0,555; (4) Komitmen organisasi berpengaruh langsung positif terhadap etos kerja sebesar ρ42=0,411; (5) Adaptasi Digital berpengaruh langsung positif terhadap kinerja sebesar ρ51=0,155; (6) Komitmen organisasi berpengaruh langsung positif terhadap kinerja sebesar ρ52=0,250; (7) Adversity Quotient berpengaruh langsung positif terhadap kinerja sebesar ρ53=0,122; (8) Etos kerja berpengaruh langsung positif terhadap kinerja sebesar ρ54=0,492. Berdasarkan penerimaan hipotesis penelitian maka ditemukan model teoritik atau fixed model yang menggambarkan struktur hubungan kausal antara variabel adaptasi digital pegawai, komitimen organisasi, adversity quotient, etos kerja, dan kinerja pegawai di Universitas Negeri Medan.Keywords: Adaptasi Digital, Adversity Quotient, Etos Kerja, Kinerja Pegawai, Komitmen Organisasi
Implementation of Accreditation-Based Education Quality Assurance System at SMP Santa Lusia Sei Rotan Hotmaida Sidabutar; Syawal Gultom; Darwin Darwin; Yuniarto Mudji Susatyo
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 6, No 3 (2023): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v6i3.7677

Abstract

This study aims to develop the implementation of an accreditation-based educational quality assurance system at SMP Santa Lucia Sei Rotan. The samples used in this study were observations, interviews, and documentation conducted by teachers of SMP Santa Lucia Sei Rotan. The research method used is research and development using descriptive qualitative field research. The results of the research are in the form of a module for implementing an accreditation-based education quality assurance system at SMP Santa Lucia Sei Rotan. The assessment results from colleagues obtained 87.25% in the good category. The results of the module design validation by the design experts were 94.5% with very good criteria. The results of the validation of teaching materials by material experts were 97.33% with very good criteria.
Strategy Management School Kindergartensanta Lusia Medan Region for Accreditation Saloma Banjarnahor; Yuniarto Mudjisusatyo; Darwin Darwin; Syawal Gultom
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 6, No 3 (2023): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v6i3.7667

Abstract

The purpose of this research is to analyze the strategic management plan for the Santa Lucia Kindergarten unit in the Medan area, the implementation of the early childhood education management strategy and the results of the strategic management review of early childhood education. In this study used a qualitative descriptive method carried out by field studies. The research was conducted at Santa Lusia Kindergarten in Medan. Data collection techniques were carried out through interviews, observation and documentation. The results of the study show that the strategic management process begins with strategic planning at Santa Lusia Kindergarten in Medan or Strengths Weaknesses Opportunities Threats analysis. Based on the Accreditation Standards for the Early Years, there are two standards that do not meet the criteria, namely Standard 4, Standards for Educators and Education Personnel. By using a Strengths Weaknesses Opportunities Threats analysis, it is known that the strength of Santa Lusia Kindergarten in the Medan region lies in its dense population, sources of funding, and opportunities to play and learn. The weakness lies in the incomplete teacher qualifications and limited teaching staff. This opportunity lies in the support of parents, central and regional government support, as well as a conducive school environment. Meanwhile, the challenge lies in the number or addition of other educational institutions around schools and the thinking of the community which is still dynamic. Then planning will be carried out by grouping the offerings according to age, involving teachers in seminars and workshops and adding activities for Santa Lusia Kindergarten students in the Medan area. The implementation of the management strategy consists in the fact that trainers participate in seminars and workshops and improve their activities. Evaluation of strategic management results is very important for the recruitment of training personnel.
Evaluasi Kehadiran Dan Pemanfaatan Duckweed Pada Sistem Kolam Stabilisasi Pengolahan Air Limbah Domestik Darwin Darwin; Anshah Silmi Afifah; Mega Mutiara Sari; I Wayan Koko Suryawan; Yosef Adicita
Jurnal Ilmiah Lingkungan Kebumian Vol 5, No 1 (2022): September 2022
Publisher : Jurusan Teknik Lingkungan, FTM, Universitas Pembangunan Nasional “Veteran” Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jilk.v5i1.7292

Abstract

Pengolahan air limbah domestik yang saat ini umum digunakan adalah kolam stabilisasi yang terdiri dari anaerob, fakultatif, dan aerobik. Di dalam prosesnya setelah melalui kolam stabilisasi dapat dapat ditampung melalui reservoir. Dalam proses pengolahan dengan proses kolam stabilisasi kehadiran gulma seperti duckweed dapat memban meningkatkan efisiensi penyisihan nutrient. Tujuand ari studi ini adalah untuk mengevaluasi kehadiran duckweed pada air limbah dan potensi pemanfaatannya di sistem kolam stabilisasi. Studi ini dilakukan dengan cara observasi lapangan dan studi literatur. Sistem kolam stabilisasi terdiri dari 3 sel: sel IA dan sel IB, sel IIA dan IIB, dan sel III. Sel I terdiri dari dua bagian yaitu sel IA dan sel IIB. Duckweed dalam sistem hanya tumbuh di kolam sel IB, sel IIA dan reservoir. Sesuai dengan karakteristiknya, alga memang sudah seharusnya tumbuh di sel IIA. Sel IIA adalah kolam fakultatif, yang memiliki daerah aerobik dan daerah anaerobik. Saat pagi dan sore hari alga tidak muncul ke permukaan dan air terlihat bening. Alga yang muncul di reservoir didominasi oleh alga kelas Chlorophyta karena memiliki warna hijau. Duckweed dapat digunakan sebagai pakan ternak seperti ikan, sapi, domba, kuda dan babi. Selain itu duckweed juga daapat dijadikan sumber energi dengan teknologi termokimia telah banyak digunakan untuk menghasilkan produk bio-minyak, arang dan gas.
SIFAT FISIKA TANAH ALUVIAL PADA SAWAH TADAH HUJAN TANPA DAN DENGAN OLAH TANAH DI DESA TEMPURUKAN KECAMATAN MUARA PAWAN KABUPATEN KETAPANG Darwin Darwin
Jurnal Sains Pertanian Equator Vol 5, No 2 (2016): Agustus 2016
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v5i2.16400

Abstract

ABSTRACK This study aims to determine differences in physical properties of the soil in rainfed with and no tillage at Tempurukan village of Muara Pawan subdistrict of Ketapang regency. The study was conducted in January and March 2016, this research using field survey methods to conduct observations and sampling of soils, in rainfed areas with rice vegetation on three locations, namely at the location A no-tillage (5-10 years) , location B with tillage (10-15 years), and the location C with tillage (20-25 years). Variable observations include: soil physical properties (texture, aggregate stability, bulk density, porosity and moisture content of field capacity), then supporting variable (pH, organic C, total-N and C / N ratio). The results showed the soil texture is generally dominated by the clay fraction and classified into class dusty clay texture, different aggregate stability at a depth of 0-20 cm, while the depth of 20-40 cm aggregate value of all 100%, the highest bulk density on the location of no tillage on depth of 0-20 cm and 20-40 cm, orthogonal contrast test showed highly significant at a depth of 0-20 cm, increasing porosity classified among the rice fields of untreated degan treated soil and duration management fields, field capacity water content tends to increase because of the high clay fraction so that the soil's ability to pass water is also low, slightly acid soil pH that is classified (from 5.6 to 6.5), C-organic classified as very low to moderate, namely (from 0.23 to 2.16), N-total are classified as moderate (0.21 to 0.50), C/N ratio is relatively very low to low, (4.60 to 8.71).
Analisa Pelanggaran Kode Etik Akuntansi Publik pada PT. Hanson Internasional Tbk Doni Molana; Tengku Sheila Chairunisa; Darwin Darwin; Arwin Arwin; Putri Enzelina Nababan; Ancer Martati Ndraha; Rahima Br Purba
GEMILANG: Jurnal Manajemen dan Akuntansi Vol. 5 No. 2 (2025): : Jurnal Manajemen dan Akuntansi
Publisher : BADAN PENERBIT STIEPARI PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/gemilang.v5i2.2545

Abstract

This study aims to analyze violations of the public accountant code of ethics that occurred in the audit of the financial statements of PT. Hanson International Tbk, especially in the 2016 report. In the report, the company recognized revenue of Rp732 billion from the sale of ready to build lots, even though the transaction was not supported by valid legal documents such as a sale and purchase binding agreement (PPJB). The financial statements still received a “fair without modification” opinion from the auditor, which then raises big questions regarding the integrity and competence of auditors in carrying out their duties. This case became a public concern because it affected thousands of investors, and triggered distrust of the company's audited financial statements. This research uses a descriptive qualitative approach with a literature study method, namely by examining various secondary sources such as scientific articles, audit reports, mass media news, and official documents from related institutions. The results of the study identified that the violations that occurred included the basic principles in the code of ethics for the public accounting profession, namely integrity, objectivity, competence and professional prudence, and professional behavior. These violations not only reduce the credibility of the public accounting profession, but also cause large financial losses to the public and tarnish the image of auditing in Indonesia. This research emphasizes the importance of strengthening supervision by regulators and professional organizations, implementing strict sanctions against ethical violations, and the need for early ethical character building through professional education and training. By strengthening the implementation of the code of ethics, it is expected that audit practices in Indonesia can run transparently, accountably, and professionally.
Co-Authors , Rahima Br Purba Adicita, Yosef Ahmad Ridhay Ancer Martati Ndraha Anshah Silmi Afifah Arwin Arwin Aulia Rahman Bunyamin Bunyamin Darius Andana Haris Doni Molana Frans Hanaekan Rajagukguk Gita Prajati H Sulaiman Hendri Syah Hotmaida Sidabutar Indah Nandayani Jaya Hardi Jeanny Pragantha Mega Mutiara Sari Munirul Hady Nasrun Nasrun Norce Rupiasa Nur Alam PURBA, ELIDAWATY Putri Enzelina Nababan Ratna Ratna Ratna Ratna Rohana Rohana Safarin Zurimi Saloma Banjarnahor Sanjaya Sanjaya Sugianto Sugianto Sujan Yadi Sukiman Sukiman Suryawan, I Wayan Koko Suwarno Suwarno Syawal Gultom Taufik Parinduri Tengku Sheila Chairunisa Tobok Luhut Situmorang Ulfa Triovanta usep firmansyah Yan Azhari Yati Tuasamu Yuniarto Mudji Susatyo Yuniarto Mudjisusatyo