155 research outputs found

    Analysis of Madden-Julian Oscillation (MJO) on extreme rainfall event in the west coastal south Sulawesi for mitigation disaster

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    Madden Julian Oscillation (MJO) is one of the global phenomena that affects weather and climate conditions in Indonesia. MJO increases the rainfall rate and causes a plethora of extreme rainfall occurrences in areas along its trajectory. Those extreme rainfall events could trigger hydrometeorological hazards that endanger the surrounding environment. As the first step to analyse this extreme weather event, this research tries to determine the threshold of the extreme rainfall rate. The method used for determining the threshold is the statistical method 98th percentile. The next step is to identify the frequency trend of the extreme rainfall in the period of 1991 to 2020, by measuring the rainfall rate and comparing it with the normal value. If the rainfall rate is above the normal condition in a certain threshold, then it is considered an extreme rainfall event. After that, these extreme rainfall occurrences are compared to the active MJO phase to find out the influence of MJO to the rainfall in the west coast of South Sulawesi. Then, the dynamical atmospheric conditions are to be analysed during those extreme rainfall events. The result shows that the frequency trend of extreme rainfall events are generally negative in 5 (five) regions, which means an insignificant correlation between MJO and rainfall rate. In contrast, 3 (three) other regions show a positive trend. The influence of an active MJO on the extreme rainfall rate is about 34,1%. Meanwhile, the rest for about 65,9% is influenced by other factors. The use of MJO indices for generating early warning hydrometeorological disasters is by utilising the MJO monitoring data, supported with the analysis of dynamical atmospheric condition in the west coast of South Sulawesi

    The Effectiveness of a Textbook Based on Multicultural and Contextual Understanding as a Learning Material for Scientific Writing

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    A multicultural and contextual-based textbook is scientific writing learning material that presents multicultural and contextual-based language materials for Buddhist college students. This study aimed to describe the effectiveness of a multicultural and contextual understanding-based textbook in improving the scientific writing skills of Buddhist college students. The data collection was carried out by employing mixed methods of statistical analysis, interviews, observations, and document analysis. The research data were obtained by using test results or the products of students' writing skills. The research samples were 101 students of a Buddhist college in the Central Java Province, Indonesia. The study results revealed that a textbook based on multicultural and contextual understanding as learning material for scientific writing could effectively improve the scientific writing skills of Buddhist college students. The results of statistical analysis using the One-way ANOVA test showed Fcal > Ftable (47.74 > 3.09). Thus, there were significant differences in the ability to write scientific papers in the experimental group of students. These results indicated that a multicultural and contextual-based textbook as teaching material for scientific writing for students of Buddhist college was more effective than books that lecturers have used. It was later reinforced by the results of interviews with students and lecturers

    UPAYA MENINGKATKAN HASIL BELAJAR MELALUI PENERAPAN METODE INKUIRI TERBIMBING DI SD NEGERI GENILANGIT 2

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    This article was conducted to determine the effectiveness of applying the guided inquiry method to improve learning outcomes in Buddhist education for fifth grade students at SD Negeri Genilangit 2 with good friends as material. This study used Classroom Action Research, with two cycles. The research subjects were 5th grade students at SD Negeri Geneilangit 2. The results showed that student learning outcomes from the pre-cycle stage, cycle I to cycle II experienced a significant increase. where at the pre-cycle stage the highest score was 55 by 1 student while the lowest was 2 students, experienced an increase in cycle I with a value of 90, by 1 student while the value below the KKM was 2 students, significantly all students increased to 95 above the KKM, on cycle II based on the results of the study it can be concluded that the application of the guided inquiry method can improve learning outcomes on Teman Yang Baik

    Karakteristik Sistem Awan Konvektif Cumulonimbus Berbasis Radar Cuaca C-Band di Sekitar Bandara Internasional Sultan Hasanuddin Makassar

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    Sistem konvektif Cumulonimbus merupakan kumpulan awan yang terdiri dari awan Cumulonimbus dan awan awan lain yang membentuk sebuah sistem, yang dapat menimbulkan cuaca signifikan. Karakteristik fisis dan dinamis Cumulonimbus diperoleh menggunakan radar cuaca C-Band pada musim peralihan dan musim hujan September hingga Februari 2016 – 2022, berpusat pada radius 150 km di sekitar Bandara Internasional Sultan Hasanuddin Makassar. Sembilan tipe morfologi sistem konvektif meso-β ditemukan dengan panjang awan 20-220 km dan panjang rata-rata awan 65 km. Sistem konvektif dominan membentuk sistem linier. Morfologi yang paling banyak terbentuk adalah sistem linier Trailing Stratiform, dan sistem seluler Cluster of Cells. Pada musim peralihan, inisiasi Cumulonimbus dominan di dataran tinggi dan pada musim hujan inisiasi dominan di laut pesisir. Secara umum Cumulonimbus matang di laut pesisir pada siang hari. Cluster of Cells dan Bow Echo adalah sistem yang paling aktif di darat, dengan windshear yang relatif lebih kuat dari semua sistem konvektif. Sistem sebagian besar berpropagasi dengan lambat. Vertical wind shear paling besar terjadi pada lapisan 0,3 – 2 km. Verifikasi dari media massa dan laporan pilot menunjukkan bahwa Cumulonimbus dapat menyebabkan bencana hidrometeorologi dan mengganggu penerbangan

    KAJIAN PENDIDIKAN MULTIKULTURAL DALAM NOVEL SUTASOMA

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    Indonesia merupakan negara memiliki keberagaman budaya, bahasa, maupun agama. Pembelajaran pendidikan multikultular sangat tepat diterapkan di Indonesia yang multikultular. Tujuan penelitian yaitu mengkaji nilai-nilai pendidikan multikultular dalam Novel Sutasoma. Jenis penelitian kualitatif dengan pendekatan content analysis. Sumber data primer dalam peneliti berupa teks Novel Sutasoma. Hasil penelitian menunjukkan Novel Sutasoma mengajarkan nilai-nilai pendidikan multikultular, diantaranya (1) menghargai pendapat, hasil karya siswa yang multikultural; (2) memberikan rasa kasih sayang kepada seluruh siswa sedangkan siswa senantiasa menghormati guru; (3) memahami dan memiliki kerelaan untuk menerima keberagaman; (4) guru dalam pelayanan pembelajaran tidak membeda-bedakan dari mana siswa berasal, semua peserta didik diposisikan secara merata dan tidak pilih kasih; (5) memberikan penjelasan untuk dengan penuh kasih sayang; (6) saling menghormati, menghargai dalam kehidupan; (7) Bhinneka tunggal ika, tan hana darma mang rwa; (8) tidak menilai siswa hanya berdasarkan status sosial, budaya, bahasa, agama yang telah diyakini; dan (9) menghindari ketegangan dan permusuhan

    Analisis Survival Menggunakan Metode Regresi Cox Pasien Penderita Tifus di RSUD Syekh Yusuf Kabupaten Gowa

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    This research is an applied researchs with a quantitative approach, namely taking or collecting the necessary data and analyzing it using the cox regression model with proportional hazards to determine the factors that affect the recovery rate of typhoid patients at Syekh Yusuf Hospital. In Gowa. The long treatment of typhoid patients is the survival time. In accordance with the Anderson Darling test using Minitab 15 software, the test results on the distribution of survival time of typhoid patients is the Gamma Distribution. Many factors will affect the patient's recovery rate such as the patient's age, patient's gender, dizziness, dirty tongue, heartburn, nausea, vomiting, and diarrhea. Therefore, it is important to know what factors most influence the recovery rate of typhoid patients. From the results of research using SPSS 20 software, it was concluded that the factors that influence the healing time of typhoid patients at Syekh Yusuf Gowa Hospital are the patient's age

    UPAYA MENINGKATKAN HASIL BELAJAR MELALUI PENERAPAN METODE INKUIRI TERBIMBING DI SD NEGERI GENILANGIT 2

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    This article was conducted to determine the effectiveness of applying the guided inquiry method to improve learning outcomes in Buddhist education for fifth grade students at SD Negeri Genilangit 2 with good friends as material. This study used Classroom Action Research, with two cycles. The research subjects were 5th grade students at SD Negeri Geneilangit 2. The results showed that student learning outcomes from the pre-cycle stage, cycle I to cycle II experienced a significant increase. where at the pre-cycle stage the highest score was 55 by 1 student while the lowest was 2 students, experienced an increase in cycle I with a value of 90, by 1 student while the value below the KKM was 2 students, significantly all students increased to 95 above the KKM, on cycle II based on the results of the study it can be concluded that the application of the guided inquiry method can improve learning outcomes on Teman Yang Baik

    Molecularly imprinted polyvinyl acetate doped with boric acid for sensitivity and selectivity of ammonia sensing by QCM

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    A reliable ammonia gas detection method is essential for various applications, so improving the sensitivity and selectivity of ammonia sensors is still challenging. In this study, we develop an ammonia sensor based on quartz crystal microbalance (QCM) using a simple preparation of molecularly imprinting polymer (MIP) active layer of polyvinyl acetate (PVAc) and boric acid (BA) as additional doping. The active layer materials are then characterized by a scanning electron microscope (SEM) equipped with dispersive x-ray (EDX) and Fourier transform infrared spectroscopy (FTIR) to examine the morphology and the functional groups. The sensitivity of the ammonia sensor developed using the MIP-doped BA method resulted in 0.243 Hz/ppm, which is three times greater than the sensor developed without the MIP method. Apart from the significantly enhanced sensitivity, high selectivity to ammonia was also observed. The response increased significantly when the QCM-PVAc MIP 6BA sensor was exposed simultaneously to several analytes, such as ammonia, trimethylamine (TMA), and methylamine (MA). A decreased response was observed when the developed sensor was exposed simultaneously without ammonia. The sensor also showed good selectivity towards other analytes and was proven to have good long-term stability during a month of testing. This result suggests that the ammonia imprinting PVAc-doped BA is a promising new method for obtaining high sensitivity and selectivity sensors

    ANALISIS PEMBELAJARAN BERBASIS APLIKASI GOOGLE CLASSROOM DALAM PEMBELAJARAN FISIKA

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    Penelitian ini merupakan jenis penelitian kuantitatif dengan jenis pre-experimental design. Penelitian ini merupakan penelitian kuantitatif dengan jenis pre-experimental design. Penelitian ini menggunakan desain One-Shot Case Study dimana tidak ada kelompok kontrol dan peserta didik diberikan perlakuan. Tujuan yang ingin dicapai dalam penelitian ini adalah untuk mengetahui hasil belajar fisika peserta didik dengan penggunaan media pembelajaran berupa aplikasi Google Classroom selama pembelajaran daring. Aplikasi Google Classroom sebagai media pembelajaran interaktif berbasis e-learning yang memudahkan guru dan peserta didik melakukan proses belajar mengajar dari rumah khususnya pembelajaran fisika pada materi Elastisitas dan Hukum Hooke dapat dilihat dari tes hasil belajar fisika peserta didik. Populasi dalam penelitian ini yaitu peserta didik kelas XI IPA di SMA Negeri 13 Takalar dengan pengambilan sampel menggunakan teknik purposive sampling. Adapun sampel dalam penelitian ini yaitu kelas XI IPA 1 yang terdiri dari 32 peserta didik. Berdasarkan hasil penelitian untuk tes hasil belajar diperoleh nilai rata-rata 68 dengan persentase tingkat ketuntasan 66%

    Segmentasi Wilayah Indonesia Yang Berpotensi Budidaya Cabai Dengan Hierarki Clustering

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    Chili is one of the most widely consumed and highly price-volatile horticultural vegetables in Indonesia. In terms of consumption, it is a staple ingredient in the daily diet of most Indonesians. When chili prices surge, it not only affects the purchasing power of the population but also disrupts economic stability. Daily chili price data from the Department of Trade for the period of January 2010 to December 2015 demonstrates significant price fluctuations, primarily influenced by seasonal variations driven by weather conditions. Policy recommendations include promoting off-season chili cultivation, regulating production, and fostering farmer-industry partnerships. In pursuit of these objectives, mapping chili production regions in Indonesia using big data and data mining techniques, particularly hierarchical clustering, emerges as a valuable approach. This methodology allows the creation of models identifying optimal areas for chili cultivation, taking into account soil conditions conducive to optimal growth.The hierarchical clustering process employs average linkage and cosine distance to group regions based on climatic and environmental characteristics. The analysis reveals that Cluster C4, encompassing various provinces across Indonesia, exhibits the most favorable conditions for chili cultivation. This conclusion offers valuable guidance to farmers and researchers in determining the optimal locations for chili cultivation. Furthermore, the approach holds potential for application to other agricultural commodities, contributing to increased domestic production and price stability in the market
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