Identifikasi Spesies Mangrove dengan Menggunakan Sistem Pesawat Udara Kecil Tanpa Awak di Kawasan Ekosistem Mangrove Sedari, Kabupaten Karawang, Jawa Barat

Remote sensing is one of the effective methods of monitoring mangrove ecosystems. One of the challenges in implementing this method is image resolution. Access to large-resolution imagery as a basic material for spatial analysis is not cheap. Unmanned small aircraft systems (SPUKTA) or drones are able to answer these challenges. Orthophotos obtained from the acquisition of drones are capable of producing large-resolution imagery. This method is then implemented in conservation areas, to facilitate the process of identifying mangrove species in the area. The drone was flown at an altitude of 150 m with a pavement value of 85% for 4 flying missions. The result of processing 1614 aerial photos into orthophotos produced images with a GSD resolution of 4.75 cm/pix. These images are then analyzed with on-screen digitization techniques and visual interpretation. From the total area of the study area of 46.48 ha obtained the digitization results of Rhizophora sp. with a total area of 24.68 ha, Avicennia sp. 7.64 ha, dead mangroves 0.19 ha, and non-vegetation 13.97 ha.Penginderaan jauh adalah salah satu metode yang efektif dalam pemantauan ekosistem mangrove. Salah satu hal yang menjadi tantangan dalam implementasi metode ini adalah resolusi citra. Akses citra beresolusi besar sebagai bahan dasar analisa spasial tidaklah murah. Sistem pesawat udara kecil tanpa awak (SPUKTA) atau drone mampu menjawab tantangan tersebut. Orthophoto yang diperoleh dari hasil akuisisi drone mampu menghasilkan citra beresolusi besar. Metode ini kemudian diimplementasikan pada kawasan konservasi mangrove Desa Sedari, Kecamatan cibuaya, Kabupaten Karawang Jawa Barat. Drone diterbangkan pada ketinggian 150 m dengan nilai pertampalan 85% untuk 4 misi terbang. Hasil dari pengolahan 1614 foto udara menjadi orthophoto menghasilkan citra dengan resolusi GSD 4,75 cm/ pix. Citra ini kemudian dianalisa dengan teknik digitasi on-screen dan interpretasi visual. Dari total luasan area kajian 46,48 ha diperoleh hasil digitasi spesies Rhizophora sp. dengan total luasan 24,68 ha, Avicennia sp. 7,64 ha, mangrove yang mati 0,19 ha, dan non vegetasi 13,97 ha

Prog Urol

La situation aiguë, liée à un calcul obstructif, se manifeste par une colique néphrétique qui peut être simple, compliquée ou à risque sur terrain particulier. Son traitement peut être seulement médical ou avoir recours à un traitement interventionnel par Lithotripsie extracorporelle (LEC), drainage endoscopique ou urétéroscopie.Méthodologie. — Ces recommandations ont été élaborées selon deux méthodes : la méthode Recommandation pour la pratique clinique (RPC) et la méthode ADAPTE, en fonction de la considération ou non de la question dans les recommandations de l’EAU(https://uroweb.org/guidelines/urolithiasis) [EAU Guidelines on urolithiasis. 2022] et de leur adaptabilité au contexte français.The acute situation, caused by an obstructive stone, is defined by a renal colic that may be uncomplicated, complicated, or at risk in specific conditions. Its management may be medical or require interventional treatment by extracorporeal shockwave lithotripsy, endoscopic removal, or ureteroscopy. Methodology. - These recommendations were developed using two methods, the Clinical Practice Recommendations (CPR) and the ADAPTE method, in function of whether the question was considered in the European Association of Urology (EAU) recommendations (https://uroweb.org/guidelines/urolithiasis) [EAU Guidelines on urolithiasis. 2022] and whether they could be adapted to the French context. (c) 2023 Elsevier Masson SAS. All rights reserved

The Potential Blockchain Technology in Higher Education Learning Innovations in Era 4.0

In the world of education, the development of technology systems is increasingly rapid. The implementation of Blockchain continues to be used in various sectors. This study analyzed the use of Blockchain in higher education. The research discussion results lead to the use of blockchain technology, which is a new trend in higher education. Blockchain implementation in higher education creates problems in the use of blockchain technology. Based on the use of Blockchain in research, we are exploring the application of related technologies in higher education. The problem with technology that functions to record small transactions and data used for many sectors such as recording transactions, documentation, and even voting, which is also used in Higher Education, is unfortunately not well implemented. This supports research on the use of blockchain technology that can record transactions in many sectors. Documenting the process of transactions, documentation, and voting can even be used in Higher Education. To improve the blockchain technology system's performance in higher education, it is becoming more effective, efficient, and more accessible in recording transaction processes. It can become a new innovation for Higher Education

Morbidity and long-term results of subcutaneous pyelovesical bypass in chronic ureteral obstruction

International audienc