Sarana dan prasarana pendidikan adalah salah satu dari beberapa sumber daya yang penting dalam kemajuan suatu lembaga. Penelitian ini bertujuan; 1) Untuk mendiskripsikan implementasi manajemen sarana prasarana di SMK, 2) Untuk mendeskripsikan proses manajemen sarana dan prasarana di SMK. Desain penelitian ini adalah penelitian deskriptif kualitatif, penelitian yang data-datanya berupa kata-kata yang berasal dari wawancara, catatan laporan, dokumen yang didalamnya mengutamakan untuk pendiskripsian. Penelitian ini memperoleh kesimpulan bahwa, implementasi manajemen sarana prasarana di SMK dilakukan secara optimal dan proses manajemen sarana prasarana pendidikan di SMK dilaksanakan secara berurutan, dimulai dari perencanaan pengadaan, pengadaan, pemeliharaan, inventarisasi dan penghapusan agar selalu dalam kondisi rapih, tertib dan teratur.

Abstract. Hartoni, Siregar VP, Wouthuyzen S, Agus SB. 2021. Object based classification of benthic habitat using Sentinel 2 imagery by applying with support vector machine and random forest algorithms in shallow waters of Kepulauan Seribu. Biodiversitas 23: 514-520. Benthic habitats have very high complexity and are home to many types of aquatic organisms. Benthic habitats have various functions, including habitat for flora and fauna, sediment traps, nursery areas, and foraging areas for aquatic fauna that are susceptible to damage due to human activities or natural factors. Therefore, more accurate spatial information is needed. The purpose of this study was to examine the ability of object-based classification techniques for mapping shallow waters benthic habitats using Sentinel 2A imagery. The two classification algorithms used are support vector machine (SVM) and random forest (RF). The input image layer (IIL) used for classification is the natural color band (Band 432). The results showed that the SVM and RF classification algorithms could classify eight classes of benthic habitats. The overall accuracy (OA) of the SVM algorithm is 65%, while the RF accuracy is 67%, with kappa values of 0.59 and 0.60, respectively. The significant test applied to Sentinel 2 images with SVM and RF algorithms for benthic habitats has a Z test value of-0.41. These results indicate that the classification results between the SVM and RF algorithms are not significantly different.

Black soldier fly larva merupakan salah satu agen pendegradasi limbah organik. PT KIU merupakan salah satu industri perkebunan dan pengolahan kelapa sawit. Salah satu limbah yang dihasilkan adalah solid decanter. Solid decanter dapat menjadi subtract yang tepat untuk black soldier fly larva (BSFL). Selain dapat emngurangi limbah organik, BSFL juga mengahasilkan biomassa dengan kandungan protein yang tinggi. Salah stau produk yang dapat diproduksi dari biomassa BSFL adalah pelet ikan. Produksi pelet ikan dirasa mampu mendukung sirkular ekonomi di PT KIU. Kegiatan ini dilakukan untuk meningkatkan pengetahuan dan keterampilan karywanan di PT KIU dalam mengelola pelet ikan berbasis BSFL. Selain itu, kegiatan ini juga bertujuan untuk meningkatkan kesejahteraan karwayan PT KIU. Kegiatan dilakukan melalui beberapa tahapan, yaitu analisis permasalahan, perumusan masalah, pelaksanaan, pendampingan, dan evaluasi. Pada proses pelaksanaan di lakukan kegiatan workshop dan pelatihan pembuatan pelet berbasis BSFL. Hasil menunjukkan bahwa terjadi peningkatan pengetahuan dan keterampilan karyawan PT KIU di bidang pemanfaatan BSFL sebagai pelet. Disamping itu juga dilakukan pembuatan scenario peningkatan pendapatan. Diestimasikan terdapat penambahan pendapatan sekitar 318.260 per bulan, atau sekitar Rp. 3.819.120/tahun untuk setiap pekerja dalam  kelompok yang terdiri dari 10 pekerja. Black Soldier Fly Larva Based Fish Pellet Making Workshop at PT Kharisma Inti Usaha Black soldier fly larva was one of the organic waste degrading agents. PT KIU was one of the palm oil plantation and processing industries. One of the wastes generated was a solid decanter. Solid decanters can be used as the substrate of black soldier fly larvae (BSFL). Besides BSFL reduced organic waste, BSFL also produces biomass with high protein content. One of the products that can be produced from BSFL biomass is fish pellets. The production of fish pellets could support the circular economy at PT KIU. The goal of this program was to increase the knowledge and skills of employees at PT KIU in managing BSFL-based fish pellets. In addition, this activity also aimed to improve the welfare of PT KIU employees. Activities are carried out through several stages: problem analysis, problem-solving, implementation, mentoring, and evaluation.  Workshops and training about how to make pellet was the main process. The results show that the knowledge and skills of PT KIU employees about the pellets production process are incresing. Besides that, a scenario for increasing revenue is also carried out. It is estimated that there will be an additional income of around 318,260 per month, or around Rp. 3,819,120/year for each worker in a group of 10 workers

The impact of climate change on small islands can have a direct and indirect impact on sea level decline. The large number of activities on Pramuka Island, Panggang Island and Karya Island, Thousand Islands, DKI Jakarta can have an impact on reducing the island's area. This study aims to analyze changes in the area of Pramuka Island, Panggang Island and Karya Island, Thousand Islands, DKI Jakarta. The method used to detect the area is the remote sensing method -Landsat-8 imagery and the Lyzenga algorithm. The results showed that there was a change in area for 6 years (2013)(2014)(2015)(2016)(2017)(2018)(2019). The total area of Panggang Island decreased by 9,65 hectares, Karya Island decreased by 9.28 hectares and Pramuka Island decreased by 6.65 hectares. This data can be used as a baseline to increase public awareness and increase the role of the government in small islands, especially Pramuka Island, Panggang Island and Karya Island to adapt to conditions that are prone to disaster risk from the impact of climate change and human activities. @2021