Indonesia sebagai negara maritim seharusnya mampu memanfaatkan sumber daya maritimnya secara berkelanjutan. Namun, pemanfaatan sumber daya maritim selama ini cenderung mengabaikan kelestarian lingkungan. Akibatnya, perairan Indonesia banyak mengalami pencemaran yang salah satu sumber utamanya berasal dari limbah domestik pemukiman pesisir. Sementara itu, salah satu cara untuk mengolah limbah domestik adalah dengan sistem Subsurface Constructed Wetland. Sistem ini lebih dianjurkan karena mampu mengolah berbagai jenis limbah dengan efisiensi tinggi serta ekonomis dari segi biaya. Jarak Pagar adalah salah satu tanaman yang dapat dimanfaatkan sebagai fitoteknologi untuk meremediasi lingkungan tercemar. Selain itu, Jarak Pagar juga merupakan tanaman adaptif yang dapat tumbuh pada kondisi lingkungan beragam. Penelitian ini menggunakan 10 reaktor Subsurface Constructed Wetland dengan tanaman Jarak Pagar aliran continue yang terdiri atas 9 reaktor menggunakan variasi debit dan jarak penananaman serta 1 reaktor tanpa tanaman sebagai kontrol. Hasil penelitian menunjukkan bahwa sistem Subsurface Constructed Wetland dengan tanaman Jarak Pagar mampu menyisihkan COD sebesar 38-85% dan TSS sebesar 75-91%. Sementara itu, kinerja terbaik ditunjukkan oleh Reaktor 3 dengan debit 8 ml/menit dan jarak penanaman 10 cm yang mencapai efisiensi penyisihan COD (84, 75%) dan TSS (87,5%). Dengan demikian, dapat disimpulkan bahwa sistem Subsurface Constructed Wetland dengan tanaman Jarak Pagar dapat menjadi salah satu solusi untuk mengelola lingkungan pesisir sehingga akan terwujud pembangunan maritim berkelanjutan.
Computer based test (CBT) becomes more pervasive in the last few decades, there is growing need for educators to consider modes of assessment because there are many advantages. CBT is an effective solution for mass education evaluation, so that CBT is very necessary applied especially in evaluation and assessment for students. The purpose of this research is to design a system for student academic examination based on computer based test (CBT). The system is designed to facilitate the examnination processes and manage challenges surrounding the conduct of examination, autosubmission, auto-marking and examinaton result report generation. The kind of this research is part of research and development (R&D) research. Model design is adopted from Thiagaraja, which have four-D model: (1) define, (2) design, (3) development, (4) disseminate. This research was executed until the limited trial of design model because the lack of the time of this study. Define was analysed student"s need, the goal, and the CBT"s concept. Design was choosed the CBT"s software, software that used in this study was learning management system (LMS) Moodle. The goal of this study is create CBT system for student examination and showed the effectivity of the system.
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