Penilaian Tingkat Bahaya Lahar Hujan Di Sungai Code

Sungai Code adalah sungai yang melewati Kota Yogyakarta yang terkenadampak aliran lahar setelah Erupsi Merapi 2010. Hal ini dikarenakan volumetotal material piroklastik yang dikeluarkan ketika Erupsi Merapi mencapai lebihdari 100 juta m dan terjadi ketika musim hujan. Tujuan penelitian ini untukmengetahui tingkat bahaya lahar di Sungai Code dan melakukan pemetaan setelahErupsi Gunungapi Merapi tahun 2010. Metode yang digunakan adalahpengolahan data sekunder dan observasi lapangan Teknik pengolahan datamenggunakan skoring dengan klasifikasi parameter besarnya bahaya lahar.Parameter yang digunakan adalah kepadatan penduduk, penggunaan lahan,ketinggian tebing dan jarak dari sungai. Software GIS digunakan untuk analisishasil dengan cara mengovelay parameter yang digunakan. Dari hasil kajian dapatdisimpulkan bahwa 46% daerah penelitian mempunyai tingkat bahaya tinggi, 28% sedang dan 24% sangat tinggi yang sebagian besar terletak disebelah baratsungai. Persebaran tingkat bahaya lahar mempunyai pola gadasi mengikutiketinggian tebing dan jarak dari sungai

Polusi Air Tanah Akibat Limbah Industri Dan Limbah Rumah Tangga

Sumber air tanah yang banyak dimanfaatkan warga adalah air sumur gali. Air sumur gali bila kondisinya tercemar baik oleh limbah domestik maupun limbah industri menyebabkan dampak terhadap kesehatan manusia. Penelitian ini bertujuan untuk mengetahui tingkat polusi dan faktor-faktor yang menyebabkan polusi air tanah akibat limbah domestik dan limbah industri di Kelurahan Kalikabong Kabupaten Purbalingga. Penelitian kuantitatif ini dilakukan pada tahun 2012. Keseluruhan data di uji statistik deng an Fisher's Exact Test. Hasil analisis bivariat menunjukkan tidak ada hubungan antara kekeruhan (p value 1,000), bau (nilai p value 0,183), warna (p value 1,000), dan rasa (p value 0,346) dengan polusi air tanah.Hasil analisis univariat menunjukkan terdapat 100% air sumur warga tidak memenuhi syarat secara mikrobiologi. Air sumur warga yang bau 47,63%, berasa 38,09%, berwarna 33,33%, keruh 28,57%. Faktor-faktor yang menyebabkan timbulnya polusi air sebesar 33,33% berasal dari limbah industri, 47,62% limbah rumah tangga, dan 19,04% berasal dari limbah perkotaan. Untuk mengurangi pencemaran air sumur gali disarankan bagi penduduk setempat untuk pembuatan tangki septik secara komunal.Many people use ground water from their wells. However, it will cause health problems if the water is contaminated by either domestic or industrial waste. This research is aimed at finding the level of pollution and the factors causing the ground water pollution by industrial and domestic waste in Kalikabong, Purbalingga District. This research was quantitative approach that has been done on 2012. Overall the data in a statistical testwith Fisher's Exact Test. The results of the bivariate analysis no correlation between turbidity (p value 1.000), aroma (p value 0.183), colour (p value 1.000), and istasty (p value 0.346) with ground water pollution The result shows that 100% water is in low quality and does not meet the microbiological requirements as tested by coliform bacteria. Moreover, 47.63%water gives unpleasant smell, 38.09% water istasty, 33.33% water becomes a colour, and 28.57% water is turbid. The factors causing the water pollution is the industrial waste (33.33%), domestic waste (47.62%), and urban waste (19.04%). It is suggested that the local people should make communal septic tank facilities

Valuasi Ekonomi Pemanfaatan Ekosistem Mangrove Di Desa Bedono, Demak

Ekosistem mangrove merupakan ekosistem penting di pesisir, memiliki potensi sumberdaya alam yang besar, dan harus dijaga kelestariannya. Masyarakat sendiri kurang menyadari betapa pentingnya nilai ekonomi ekosistem tersebut. Penelitan dilakukan pada bulan Januari-Februari 2012 bertujuan untuk mengetahui pemanfaatan ekosistem mangrove dan nilai ekonomi total ekosistem mangrove di Desa Bedono, Demak. Metode penelitian yang digunakan adalah metode survei. Pengumpulan data melalui wawancara terhadap 94 orang responden menggunakan teknik purposive sampling. Hasil valuasi ekonomi ekosistem mangrove didapat manfaat langsung sebesar Rp 169.797.000,00 per tahun (8,5%) didapat dari pemanfaatan kayu bakar dan dari sektor perikanan. Manfaat tidak langsung sebesar Rp 1.827.985.770,00 per tahun (89,5%) didapat dari nilai sebagai daerah asuhan, mencari makan, dan daerah pemijahan serta manfaat sebagai penahan abrasi serta pelindung tambak. Manfaat pilihan sebesar Rp 39.223.125,00 per tahun (2%) didapat dari fungsi ekologis. Nilai ekonomi total ekosistem mangrove di Kelurahan Bedono, Demak adalah sebesar Rp 2.037.005.895,00 per tahun

Autonomous Detection and Tracking of an Object Autonomously Using Ar.drone Quadcopter

Nowadays, there are many robotic applications being developed to do tasks autonomously without any interactions or commands from human. Therefore, developing a system which enables a robot to do surveillance such as detection and tracking of a moving object will lead us to more advanced tasks carried out by robots in the future. AR.Drone is a flying robot platform that is able to take role as UAV (Unmanned Aerial Vehicle). Usage of computer vision algorithm such as Hough Transform makes it possible for such system to be implemented on AR.Drone. In this research, the developed algorithm is able to detect and track an object with certain shape and color. Then the algorithm is successfully implemented on AR.Drone quadcopter for detection and tracking

Radiological Features in Deceased COVID-19 Patients at a Hospital in Bandung

COVID-19 attacks the respiratory system, especially the lung. Therefore, it is necessary to examine the lung radiology of COVID-19 patients to plan the best treatment. This study aimed to describe radiological features in deceased patients at a hospital in Bandung, Indonesia. This study uses secondary data from the medical records of deceased COVID-19 patients from December 2020 to February 2021. Amongst the 129 patients who died whilst hospitalized, their chest X-ray showed pneumonia consisting of ground glass opacities (GGO) and consolidated lesions. The mean distribution of lesions was unilateral in 3 (2.33%) and bilateral in 126 (97.67%). In comparison, peripheral lesions were found in 80 (62.02%), and peripheral-medial lesions were found in 49 (37.98%). The mean of the lesions affecting the upper lung fields were 2.63 (DS 1.19), the middle lung fields were 4.39 (DS 1.82), and the lower lung fields were 4.88 (DS 1.53). When admitted to the isolation ward, the average Brixia score on a chest X-ray was 11.9 (95% CI 12.74; 11.16). In conclusion, the radiological features of COVID-19 patients who died under treatment showed ground glass opacities and consolidated lesions. The predominant distribution was on bilateral, peripheral, and lower lesions with a high Brixia score. Keywords: COVID-19, mortality, the brixia score

Pelatihan Program Pengembangan Keprofesian Berkelanjutan (Pkb) Untuk Guru Sekolah Dasar Di Lingkungan Dinas Pendidikan Dan Kebudayaan Kota Sukabumi

Becoming a teachers means always encourage yourself for longlife education. This is one of the benefit in Teacher career. We used to be learn anything and everything to update our professionalism. As a Teacher, we should be aware of teachers world, knowledge, technology, and student needs changing. Indonesian Government facilitate it through PKB (Continuity Profesionalism Development) program. PKB goals is to increasing teachers career competence continualy. Although Government publish this program since 2009, Education and Culture Departement of Sukabumi City started it in 2015 October. This lateness becoming our concern to organize a PKB Workshop specialy for elemetary school teachers. This workshop attendence by fifty teachers from seven distrik in Sukabumi city. The Workshop goals is to diseminate PKB and how to running it in teachers career. Beside that, the workshop also trained teacher how to entablish class action reasearch. This workshop held in three days from 2nd to 4th November 2016. From the workshop we know that PKB is very important to increase teachers competence and to maintain teachers career

Coupled, Physics-Based Modeling Reveals Earthquake Displacements are Critical to the 2018 Palu, Sulawesi Tsunami

The September 2018, Mw 7.5 Sulawesi earthquake occurring on the Palu-Koro strike-slip fault system was followed by an unexpected localized tsunami. We show that direct earthquake-induced uplift and subsidence could have sourced the observed tsunami within Palu Bay. To this end, we use a physics-based, coupled earthquake–tsunami modeling framework tightly constrained by observations. The model combines rupture dynamics, seismic wave propagation, tsunami propagation and inundation. The earthquake scenario, featuring sustained supershear rupture propagation, matches key observed earthquake characteristics, including the moment magnitude, rupture duration, fault plane solution, teleseismic waveforms and inferred horizontal ground displacements. The remote stress regime reflecting regional transtension applied in the model produces a combination of up to 6 m left-lateral slip and up to 2 m normal slip on the straight fault segment dipping 65∘ East beneath Palu Bay. The time-dependent, 3D seafloor displacements are translated into bathymetry perturbations with a mean vertical offset of 1.5 m across the submarine fault segment. This sources a tsunami with wave amplitudes and periods that match those measured at the Pantoloan wave gauge and inundation that reproduces observations from field surveys. We conclude that a source related to earthquake displacements is probable and that landsliding may not have been the primary source of the tsunami. These results have important implications for submarine strike-slip fault systems worldwide. Physics-based modeling offers rapid response specifically in tectonic settings that are currently underrepresented in operational tsunami hazard assessment