Muhammad Iksan - Academia.edu (original) (raw)
Papers by Muhammad Iksan
Environmental Monitoring and Assessment, 2022
Estuaries have very complex mechanisms because they are influenced by seawater intrusion, which c... more Estuaries have very complex mechanisms because they are influenced by seawater intrusion, which causes enrichment of contaminants in the maximum turbidity area. Magnetic susceptibility measurements have been used for monitoring a wide variety of environments. However, there have been few studies of the magnetic properties of surface sediments from estuaries in volcanic environments in the tropics. This study investigates the magnetic properties and their correlations with the geochemistry of surface sediments in estuaries in volcanic areas and was conducted in the Krueng Aceh River, Indonesia. Measurements consist of magnetic susceptibility measurements, chemical analysis, and mineralogical analysis. Measurements of magnetic susceptibilities were performed using a Bartington MS2 instrument with an MS2B sensor using frequencies of 460 and 46 kHz. X-ray fluorescence (XRF) and energy-dispersive spectroscopy (EDS) were used to identify elements in the sediments. Scanning electron microscopy (SEM) analysis was used to analyze sediment grains. X-ray diffraction (XRD) analysis was used to determine mineral contents. For the first time, χ LF /χ FD ratios were found to be an obvious parameter for identifying areas of sediment traps and metal enrichment in the estuary turbidity maxima (ETM) zone. The magnetic properties carried by volcanic rock minerals consist of pigeonite and enstatite. These two minerals have not been previously considered as carriers of sediments with magnetic properties when monitoring heavy metal enrichment in urban rivers. These results provide an extension of the use of magnetic susceptibility measurements in environmental studies, particularly in estuary river environments in volcanic areas such as the Krueng Aceh River, Indonesia.
Data penelitian dihimpun melalui wawancara dan studi pustaka sebagai sumber utama, wawancara yang... more Data penelitian dihimpun melalui wawancara dan studi pustaka sebagai sumber utama, wawancara yang digunakan adalah langsung secara struktur maupun bebas dari pihak BMT Amanah Ummah yaitu kepada manager, marketing dan nasabah pembiayaan mudharabah, selanjutnya dianalisis dengan teknik deskripsi kualitatif. Hasil penelitian yang diperoleh dari penelitian ini adalah dalam pembiayaan mudharabah BMT Amanah Ummah Surabaya sebagai pemilik dana (shahibul mal) yang menyediakan seluruh kebutuhan modal dengan pihak pengelola usaha (mudharib) untuk melakukan suatu kegiatan usaha bersama. Keuntungan yang diperoleh dibagi menurut perbandingan (nisbah) yang disepakati, begitu juga sebaliknya jika mengalami kerugian. Dalam perhitungan bagi hasil pada pembiayaan mud}ārabah, porsi yang diberikan adalah 30:70 di mana 30% adalah bagian BMT Amanah Ummah dan 70% adalah bagian nasabah. Cara perhitungan juga dijelaskan di awal perjanjian. Pembiayaan bagi hasil muḍārabah ini dihitung dari asumsi pendapatan ...
IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature, 2015
The objectives of this research were: (1) To investigate the dominant language learning strategie... more The objectives of this research were: (1) To investigate the dominant language learning strategies (LLSs) used by the students in SMA Negeri 1 Palopo; (2) To investigate the dominant LLSs used by the high and low achiever students in SMA Negeri 1 Palopo; and (3) To investigate the correlation between the students dominant LLSs and their English achievement. This research involved 63 students that were chosen using cluster random sampling technique. The data that was obtained through SILL questionnaire and English achievement test were analyzed using descriptive statistics through SPSS software version 21.0.The findings revealed that the students use all of the six categories of LLSs given by Oxford (1990), and the most dominant used LLSs category by the students are metacognitive strategies (39.76%), followed by affective strategies (16.95%), while the least dominant used strategies by the students are social strategies (7.60%), followed by memory strategies (8.77%). The high achiev...
Jurnal Ekonomi dan Bisnis Indonesia, 2019
Tujuan penelitian ini adalah: (1) mengetahui desain prototipe multimedia pembelajaran IPS Ekonomi... more Tujuan penelitian ini adalah: (1) mengetahui desain prototipe multimedia pembelajaran IPS Ekonomi berbasis nilai-nilai karakter; (2) mengetahui tingkat kelayakan prototipe multimedia berbasis nilai-nilai karakter yang dikembangkan oleh peneliti berdasarkan penilaian ahli; (3) mengetahui keterlaksanaan pembelajaran dengan menggunakan multimedia berbasis nilai-nilai karakter yang telah dilakukan peneliti; dan (4) mengetahui keefektifian pembelajaran dengan menggunakan multimedia ditinjau dari hasil belajar siswa. Penelitian ini menggunakan metode penelitian dan pengembangan (research and development). Tahapan penelitian ini terdiri atas: analisis kebutuhan, desain pengembangan, pengembangan multimedia, dan validasi/ evaluasi produk. Subjek dalam penelitian ini sebanyak 17 orang yang terdiri atas 1 orang ahli materi, 1 orang ahli media, 3 orang siswa “one to one evaluation” dan 12 orang siswa “small group evaluation”. Data penelitian ini dikumpulkan melalui lembar validasi ahli, lembar...
Peanut tenteng is one of traditional snacks from Palopo. This food is very popular because of its... more Peanut tenteng is one of traditional snacks from Palopo. This food is very popular because of its delicious taste. However, day by day, this snack becomes rare because of the invasion of modern snacks that are produced massively by bigger and stronger company. Based on that consideration, an attempt to conserve that local snack was initiated. The inadequacy of capital and tools of production became a part of problems of the home industry businessmen to develop their business. The producer of peanut tenteng were still difficult to produce their product in a large amount. This was caused by the inadequacy of the capital to buy the materials of peanut tenteng as well as the inadequacy of production equipments such as printer and package sealer. Therefore, this IbM program was conducted to assist the group of peanut tenteng producers in terms of providing business capital and also the production equipments. By the assistance of production equipments, it was expected to be able to shorte...
Environmental Monitoring and Assessment, 2022
Estuaries have very complex mechanisms because they are influenced by seawater intrusion, which c... more Estuaries have very complex mechanisms because they are influenced by seawater intrusion, which causes enrichment of contaminants in the maximum turbidity area. Magnetic susceptibility measurements have been used for monitoring a wide variety of environments. However, there have been few studies of the magnetic properties of surface sediments from estuaries in volcanic environments in the tropics. This study investigates the magnetic properties and their correlations with the geochemistry of surface sediments in estuaries in volcanic areas and was conducted in the Krueng Aceh River, Indonesia. Measurements consist of magnetic susceptibility measurements, chemical analysis, and mineralogical analysis. Measurements of magnetic susceptibilities were performed using a Bartington MS2 instrument with an MS2B sensor using frequencies of 460 and 46 kHz. X-ray fluorescence (XRF) and energy-dispersive spectroscopy (EDS) were used to identify elements in the sediments. Scanning electron microscopy (SEM) analysis was used to analyze sediment grains. X-ray diffraction (XRD) analysis was used to determine mineral contents. For the first time, χ LF /χ FD ratios were found to be an obvious parameter for identifying areas of sediment traps and metal enrichment in the estuary turbidity maxima (ETM) zone. The magnetic properties carried by volcanic rock minerals consist of pigeonite and enstatite. These two minerals have not been previously considered as carriers of sediments with magnetic properties when monitoring heavy metal enrichment in urban rivers. These results provide an extension of the use of magnetic susceptibility measurements in environmental studies, particularly in estuary river environments in volcanic areas such as the Krueng Aceh River, Indonesia.
Data penelitian dihimpun melalui wawancara dan studi pustaka sebagai sumber utama, wawancara yang... more Data penelitian dihimpun melalui wawancara dan studi pustaka sebagai sumber utama, wawancara yang digunakan adalah langsung secara struktur maupun bebas dari pihak BMT Amanah Ummah yaitu kepada manager, marketing dan nasabah pembiayaan mudharabah, selanjutnya dianalisis dengan teknik deskripsi kualitatif. Hasil penelitian yang diperoleh dari penelitian ini adalah dalam pembiayaan mudharabah BMT Amanah Ummah Surabaya sebagai pemilik dana (shahibul mal) yang menyediakan seluruh kebutuhan modal dengan pihak pengelola usaha (mudharib) untuk melakukan suatu kegiatan usaha bersama. Keuntungan yang diperoleh dibagi menurut perbandingan (nisbah) yang disepakati, begitu juga sebaliknya jika mengalami kerugian. Dalam perhitungan bagi hasil pada pembiayaan mud}ārabah, porsi yang diberikan adalah 30:70 di mana 30% adalah bagian BMT Amanah Ummah dan 70% adalah bagian nasabah. Cara perhitungan juga dijelaskan di awal perjanjian. Pembiayaan bagi hasil muḍārabah ini dihitung dari asumsi pendapatan ...
IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature, 2015
The objectives of this research were: (1) To investigate the dominant language learning strategie... more The objectives of this research were: (1) To investigate the dominant language learning strategies (LLSs) used by the students in SMA Negeri 1 Palopo; (2) To investigate the dominant LLSs used by the high and low achiever students in SMA Negeri 1 Palopo; and (3) To investigate the correlation between the students dominant LLSs and their English achievement. This research involved 63 students that were chosen using cluster random sampling technique. The data that was obtained through SILL questionnaire and English achievement test were analyzed using descriptive statistics through SPSS software version 21.0.The findings revealed that the students use all of the six categories of LLSs given by Oxford (1990), and the most dominant used LLSs category by the students are metacognitive strategies (39.76%), followed by affective strategies (16.95%), while the least dominant used strategies by the students are social strategies (7.60%), followed by memory strategies (8.77%). The high achiev...
Jurnal Ekonomi dan Bisnis Indonesia, 2019
Tujuan penelitian ini adalah: (1) mengetahui desain prototipe multimedia pembelajaran IPS Ekonomi... more Tujuan penelitian ini adalah: (1) mengetahui desain prototipe multimedia pembelajaran IPS Ekonomi berbasis nilai-nilai karakter; (2) mengetahui tingkat kelayakan prototipe multimedia berbasis nilai-nilai karakter yang dikembangkan oleh peneliti berdasarkan penilaian ahli; (3) mengetahui keterlaksanaan pembelajaran dengan menggunakan multimedia berbasis nilai-nilai karakter yang telah dilakukan peneliti; dan (4) mengetahui keefektifian pembelajaran dengan menggunakan multimedia ditinjau dari hasil belajar siswa. Penelitian ini menggunakan metode penelitian dan pengembangan (research and development). Tahapan penelitian ini terdiri atas: analisis kebutuhan, desain pengembangan, pengembangan multimedia, dan validasi/ evaluasi produk. Subjek dalam penelitian ini sebanyak 17 orang yang terdiri atas 1 orang ahli materi, 1 orang ahli media, 3 orang siswa “one to one evaluation” dan 12 orang siswa “small group evaluation”. Data penelitian ini dikumpulkan melalui lembar validasi ahli, lembar...
Peanut tenteng is one of traditional snacks from Palopo. This food is very popular because of its... more Peanut tenteng is one of traditional snacks from Palopo. This food is very popular because of its delicious taste. However, day by day, this snack becomes rare because of the invasion of modern snacks that are produced massively by bigger and stronger company. Based on that consideration, an attempt to conserve that local snack was initiated. The inadequacy of capital and tools of production became a part of problems of the home industry businessmen to develop their business. The producer of peanut tenteng were still difficult to produce their product in a large amount. This was caused by the inadequacy of the capital to buy the materials of peanut tenteng as well as the inadequacy of production equipments such as printer and package sealer. Therefore, this IbM program was conducted to assist the group of peanut tenteng producers in terms of providing business capital and also the production equipments. By the assistance of production equipments, it was expected to be able to shorte...