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All Journal Jurnal Wasian Jurnal Rekayasa Sipil dan Lingkungan Jurnal Pendidikan Biologi Tadbiruna: Jurnal Manajemen Pendidikan Islam International Journal of Economics, Management and Accounting Indonesian Journal of Forestry Research
Arif Irawan, Arif
Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manado
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Transportation

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Suitability of Cocopeat as a Transplanting Media in the Polytube of Magnolia elegans (Blume.) H. Keng Seedlings Irawan, Arif; Hidayah, Hanif Nurul
Jurnal Wasian Vol 1, No 2 (2014): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v1i2.860

Abstract

This study aims to determine the suitability of using cocopeat as planting media at transplanting containers in the polytube of the cempaka seedlings growth.  The method used in this research was implementing a trial use of cocopeat as transplanting media in the polytube and being compared to the growth of cempaka seedlings in polytubes and polybags containing topsoil.  The parameters observed included percent survival (%), height (cm), and diameter (cm) of the plants.  Through the t-test it was shown that the parameters of diameter, height, and percent survival of the cempaka seedlings using cocopeat as a transplanting media were significantly different than those using top soil as a transplanting media. 
Effectivity of Using Growth Retardants on Shorea assamica Dyer Seedling at Nursery Irawan, Arif; Iwanuddin, Iwanuddin
Jurnal Wasian Vol 2, No 1 (2015): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v2i1.869

Abstract

The use of growth retardants widely used as a solution in the storage material for the propagation of plant species that have recalcitrant seed types. White meranti (S.assamica) is one kind of commercial timber from dipterocarp family found in Sulawesi. This species is one of the types of plants that have the type of recalcitrant seeds. This study aims to determine the effectiveness of using growth retardants in the nursery.The experimental design used in this research is completely randomized design. The results showed the use of growth retardants provide excellent effectiveness in inhibiting the growth of seedling of S.assamica. Paklobutrazol of 250 ppm is a the best treatment that can provide growth inhibition. Percentage of growth inhibition of seedling age of 6 months amounted to 75,14 % (height) and 33,33% (diameter).
Identification Causes Leaf Spot Disease in Cempaka (Magnolia elegans (Blume.) H.Keng) Seedling and Its Control Techniques (Identifikasi Penyebab Penyakit Bercak Daun Pada Bibit Cempaka (Magnolia Elegans (Blume.) H.Keng) dan Teknik Pengendaliannya) Irawan, Arif; Anggraeni, Ilaa; Christita, Margaretta
Jurnal Wasian Vol 2, No 2 (2015): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v2i2.843

Abstract

This research purposes to identify the pathogen causing leaf spot in cempaka seedling and its control technique. Identify cause of disease is necessary to know precise technique control. Identification of disease was conducted in macroscopic appearances and microscopically to determine pathogens. Identification is done by using the determination key of fungi. The results showed that the early signs of leaf spot disease on cempaka seedlings in the nursery are streaks or spots on the leaf surface with distinct boundaries. Leaf spots are formed generally brown surrounded by darker boundaries. The result shows leaf spot disease on cempaka seedling was caused by fungal pathogen Colletotrichum sp. Techniques for controlling the disease can be done by isolating the infected seeds, reducing the intensity of canopy, and using the appropriate fungicides.
Evaluasi Tekno Ekonomi Proyek Automated People Mover System Bandar Udara Internasional Soekarno-Hatta Irawan, Arif; Susetyo, Budi; Amin, Mawardi
Jurnal Rekayasa Sipil dan Lingkungan Vol 7 No 2 (2023): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v7i2.44126

Abstract

Abstrak Pertumbuhan jumlah Penumpang terus mengalami kenaikan setiap tahunnya, maka peningkatan kapasitas menjadi tantangan bagi penyelenggara Bandar Udara, diantaranya dengan menambah jumlah sub terminal, yaitu: terminal 1, terminal 2 dan terminal 3. diharapkan mampu menjawab persoalan tersebut, namun dengan bertambahnya jumlah sub terminal mobilitas penumpang menjadi permasalahan operasional baru yang harus diselesaikan karena perpindahan tersebut menimbulkan potensi terjadinya hambatan lalu lintas dan menyebabkan penumpang terlambat. untuk mengatasi permasalahan tersebut, Bandar Udara Internasional Soekarno – Hatta berinovasi melakukan pengembangan Infrastruktur yang dapat memberikan sistem layanan transportasi terpadu, dedicated sehingga prioritas mobilitas penumpang dapat terlayani dengan baik. Penyelenggaraan APMS merupakan sistem layanan penunjang konektivitas antarmoda dan antar sub terminal, biaya penyelenggaraannya membutuhkan biaya cukup besar yakni biaya investasi dan biaya operasional hal ini menjadi permasalahan besar karena Pembebanan biaya operasional tidak secara langsung melainkan dibebankan melalui pendapatan pelayanan jasa penumpang pesawat udara (PJP2U) / Passenger Service Charge (PSC), sejak masa pandemi corona virus disease (covid - 19) pendapatan tersebut mengalami penurunan. Penelitian bertujuan melakukan evaluasi tekno ekonomi terhadap Proyek Automated People Mover System dengan melakukan perhitungan seperti Internal Return Rate, Net Present Value, Return On Investment, dan Pay Back Period, Hasil penelitian dinyatakan layak karena memberikan manfaat sosial. Kata kunci: Automated People Mover System, Net Present Value, Internal Return Rate, Benefit Cost Ratio, Pay Back Period, Return On Investment
EVALUASI PELATIHAN TEKNIK PENANAMAN CEMPAKA BERDASARKAN TEORI THE FOUR LEVELS KIRKPATRICK Irawan, Arif; Hidayah, Hanif Nurul; Wildah, A.
Jurnal Pendidikan Biologi Vol 12, No 2 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um052v12i2p64-70

Abstract

Abstrak. Cempaka merupakan jenis kayu yang memiliki keterikatan erat dengan budaya masyarakat suku Minahasa karena digunakan dalam pembuatan rumah adat. Pasokan bahan baku kayu cempaka sudah semakin terbatas karena keberadaannya sudah semakin berkurang. Salah satu hal yang dapat dilakukan untuk mendukung kegiatan pengembangan cempaka adalah melalui penyebarluasan informasi melalui kegiatan pelatihan teknik penanaman cempaka. Penelitian ini bertujuan untuk melakukan evaluasi kegiatan pelatihan tenik penanaman cempaka berdasarkan teori The Four Levels yang dikembangkan oleh Kirkpatrick pada level I dan II. Pengumpulan data dilakukan dengan wawancara terhadap seluruh peserta kegiatan pelatihan dari 3 (tiga) kabupaten (Minahasa,Minahasa Utara, dan Minahasa Selatan) dengan jumlah peserta masing-masing kabupaten adalah berjumlah 15 orang. Data untuk evaluasi pada level 1 ditabulasi dan selanjutnya dianalisis secara deskriptif. Evaluasi pada level 2 dilakukan dengan membandingkan data hasil kuesioner pre test dan post test menggunakan uji t sampel berhubungan. Hasil penelitian menunjukkan bahwa pelatihan tenik penanaman cempaka dapat terlakasana dengan baik (evaluasi level 1). Pelatihan mampu meningkatkan pengetahuan peserta yang ditandai dengan adanya peningkatan nilai hasil evaluasi dari kuesioner sebelum dan setelah pelatihan sebesar 22 persen di Kabupaten Minahasa; 20 persen di Kabupaten Minahasa Utara, dan 13 persen di Kabupaten Minahasa Selatan (evaluasi level II).Abstract. Cempaka (Elmerrillia sp.) is a type of woods that has a close attachment to the culture of the Minahasa community because it is used in the making of traditional houses. The supply of cempaka wood raw materials has become increasingly limited because its existence has diminished. One of the things that can be done to support the preservation of cempaka is with the dissemination through training in cempaka planting techniques. This study aims to evaluate the training activities of cempaka planting techniques based on The Four Levels theory developed by Kirkpatrick at level I and II. Data collection was carried out by interviewing all training participants from 3 (three) districts (Minahasa, North Minahasa, and South Minahasa) with 15 participants in each district. Data for evaluation at level 1 were tabulated and then analyzed descriptively. Evaluation at level 2 is carried out by comparing the results of the pre-test and post-test questionnaire using the corresponding sample t test. The results showed that the training in cempaka planting techniques was carried out well (level 1 evaluation). The training was able to increase participants' knowledge which was marked by an increase in the value of the evaluation results from the questionnaire before and after the training by 22 percent in the Minahasa District; 20 percent in North Minahasa District, and 13 percent in South Minahasa District (level II evaluation).
MANAJEMEN REKRUTMEN, SELEKSI, ORIENTASI DAN PENEMPATAN SUMBER DAYA MANUSIA PENDIDIKAN BERBASIS NILAI-NILAI ISLAM Kari, Muhammad Fendra; Muslim, Amirudin; Irawan, Arif; Palah; Aliyyah, Rusi Rusmiati
TADBIRUNA: Jurnal Manajemen Pendidikan Islam Vol 5 No 1 (2025): TADBIRUNA
Publisher : Program Studi Manajemen Pendidikan Islam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51192/jurnalmanajemenpendidikanislam.v5i1.2060

Abstract

This study aims to examine human resource management practices at SMK Amaliah 1 Ciawi, with a particular focus on the recruitment, selection, orientation, and placement of teaching and administrative staff. A qualitative method was employed through interviews with three key informants: the principal, the vice principal for curriculum, and the head of administration. The findings reveal that recruitment is carried out systematically based on institutional needs, with the selection process emphasizing professional competence and Islamic values. Orientation programs are regularly implemented through In-House Training (IHT), while staff placement considers educational background and school needs. Performance evaluation is conducted informally through meetings and direct supervision. The main challenge identified is the limited availability of vocational human resources that meet the required qualifications. The study recommends strengthening digital documentation systems, adaptive mentoring, and partnerships with higher education institutions
Factors that Women Consider When Choosing to Work (Case Study of the Salted Fish Processing Industry on Pasaran Island, Bandar Lampung) Irawan, Arif; Yuliawan, Dedy
International Journal of Economics, Management and Accounting (IJEMA) Vol. 2 No. 1 (2024): June
Publisher : Lafadz Jaya Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47353/ijema.v2i1.142

Abstract

The workforce in the salted fish processing industry in Pulau Pasaran Tourism Village is predominantly composed of women, particularly housewives. This industry was selected for the study due to that it has the highest number of female workers in Bandarlampung City. The objective of this study is to analyze the impact of husbands' income, workers' wages/salaries, and the number of dependents on the contribution of female workers in Pulau Pasaran. The population of the study includes female workers employed in the salted fish processing industry and living in Telukbetung Timur, Bandarlampung. The sample was taken using purposive sampling technique, consisting of a total of 37 female workers as respondents. Data were collected through observation, questionnaires, and documentation, and analyzed using descriptive quantitative methods. The results of the study indicate that family or husbands' income, wages/salaries, and the number of dependents significantly influence the contribution of female workers in the salted fish processing industry in Pulau Pasaran. This study reveals that female workers in this industry play a crucial role in increasing family income.
STORAGE TECHNIQUES OF CEMPAKA WASIAN (Magnolia tsiampaca (Miq.) Dandy) SEEDS Irawan, Arif; Hidayah, Hanif Nurul; Kinho, Julianus; Halawane, Jafred E.
Indonesian Journal of Forestry Research Vol. 7 No. 2 (2020): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2020.7.2.113-120

Abstract

Cempaka wasian is a type of woody tree which has a substantial historical value associated with the local culture of the Minahasan people. The improvement of cempaka wasian plantation is essential due to their enormous importance and usage. This study aims to discover the impacts of duration, storage room, and containers used for the appropriate storage of cempaka wasian seeds. The design used in this study is entirely randomized design organized with a factorial pattern which consists of 3 factors; 1) storage duration, 2) storage room and 3) storage containers. Duration of storage was 2, 3, 4, and 5 months; meanwhile, storage rooms comprised of refrigerators, chambers, and air-conditioned room. Moreover, storing containers consisted of calico cloth, aluminium foils, and plastic bags. The study finding indicates that the seeds of cempaka wasian could still germinate if stored for five months by using plastics bags inside refrigerators. A significant provision of seeds and suitable timing are closely related to the proper seed storage techniques.
Co-Authors Budi Susetyo Halawane, Jafred E. Hanif Nurul Hidayah, Hanif Nurul Ilaa Anggraeni, Ilaa Iwanuddin Iwanuddin, Iwanuddin Julianus Kinho Kari, Muhammad Fendra Margaretta Christita, Margaretta Mawardi Amin Muslim, Amirudin Palah Rusi Rusmiati Aliyyah Wildah, A. Yuliawan, Dedy