Talenta Conference Series: Science and Technology (ST)最新文献

{"title":"Analisis Faktor-Faktor Berpengaruh Terhadap Prestasi Belajar Fisika Siswa di SMA Swasta Kota Bengkulu","authors":"Indra Sakti, D. Gultom","doi":"10.32734/st.v2i2.529","DOIUrl":"https://doi.org/10.32734/st.v2i2.529","url":null,"abstract":"Tujuan penelitian ini adalah analisis prestasi belajar siswa berdasarkan faktor-faktor yang mempengaruhinya, yaitu (1) jenis kelamin, (2) durasi belajar di rumah, (3) metode belajar di rumah, (4) gaya belajar, (5) belajar, dan (6) motivasi belajar. Metode penelitian ini adalah metode deskriptif. Sampel penelitian ini adalah siswa sekolah menengah swasta SC Kota Bengkulu tahun akademik 2016/2017. Metode dalam penelitian ini ialah metode deskriptif. Hasil penelitian menunjukkan bahwa 1) Tidak ada hubungan positif dan signifikan antara jenis kelamin dengan prestasi belajar fisika siswa, rxy = 0,255 <rtabel = r 0,301. dengan nilai kontribusi 6,50%. (2) Tidak ada hubungan positif dan signifikan antara lama belajar di rumah dengan prestasi belajar fisika siswa, rxy = 0,193 <rtabel = 0,301 dengan nilai kontribusi sebesar 3,7%. (3) Tidak ada korelasi positif dan signifikan antara metode belajar di rumah dengan prestasi belajar fisika siswa, rxy = 0,247 <rtabel = 0,301 dengan nilai kontribusi sebesar 6,1%. (4) Ada hubungan positif dan signifikan antara gaya belajar dengan prestasi belajar fisika siswa, rxy = 0,424> rtabel = 0,301 dengan nilai kontribusi sebesar 10,5%. (5) Ada hubungan positif dan signifikan antara minat belajar dengan siswa, rxy = 0,339> rtable = 0,301 dengan nilai kontribusi 11,5%. (6) Ada hubungan positif dan signifikan antara motivasi belajar dengan prestasi belajar fisika siswa, rxy = 0,312> rtabel = 0,301 dengan nilai kontribusi 9,8%. \u0000  \u0000The purpose of this study is the analysis of student achievement based on factors that influence it, namely (1) gender, (2) duration of home study, (3) home study methods, (4) learning style, (5) learning, and (6) learning motivation. The method of this research is descriptive method. The sample of this research is private high school students of SC Kota Bengkulu academic year 2016/2017. Data analysis techniques for. Technique. The results showed (1) There was no positive and significant correlation between gender with student physics learning achievement, rxy = 0,255 <rtabel = r 0,301. with a contribution value of 6.50%. (2) There is no positive and significant correlation between duration of study at home with student physics learning achievement, rxy = 0,193 <rtabel = 0,301 with contribution value equal to 3,7%. (3) There is no positive and significant correlation between home study method and student physics achievement, rxy = 0,247 <rtabel = 0,301 with contribution value equal to 6,1%. (4) There is a positive and significant correlation between learning style with student physics achievement, rxy = 0,424> rtabel = 0,301 with contribution value equal to 10,5%. (5) There is a positive and significant relationship between interest in learning with students, rxy = 0,339> rtabel = 0,301 with contribution value 11,5%. (6) There is a positive and significant correlation between learning motivation with student physics achievement, rxy = 0,312> rtabel = 0,301 with contribution value 9.8%.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125598560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kuantifikasi Kandungan Volatile Organic Compounds (VOC) di Kawasan Desa Sungai Rambe untuk Memprediksi Keberadaan Minyak Bumi","authors":"Sutrisno., Rayandra Asyhar, Rahmi, Andrian Tri Kesuma Wardana","doi":"10.32734/st.v2i2.508","DOIUrl":"https://doi.org/10.32734/st.v2i2.508","url":null,"abstract":"Penelitian ini menggunakan metode Gore Sorber dengan menanamkan alat ke dalam tanah selama 21 hari dan pada hari ke-21 alat tersebut diambil kemudian kandungannya dianalisis dengan menggunakan GC-MS untuk mengetahui jumlah senyawa hidrokarbon yang terkandung dalam minyak bumi. Beberapa senyawa yang terdeteksi dengan metode Gore Sorber diantaranya adalah alfa pinena, dimetil sulfida, karbonil sulfide, dimetil disulfida, butana dana etana. Senyawa tersebut merupakan senyawa yang umum ditemukan pada minyak bumi dengan komposisi alfa pinena 206,34 ng; dimetil sulfida 196,65 ng; dan dimetil disulfida 205,8 ng. Tiga komponen tersebut merupakan komponen minyak bumi hidrokarbon dan non-hidrokarbon. \u0000  \u0000This research uses Gore Sorber method by implanting the tool into the soil for 21 days then taken on day 21 and directly analyzed using GC-MS instrument to know the amount of hydrocarbon compound contained in petroleum. Some of the compounds detected using Gore-Sorber are alpha pinene, dimethyl sulphide, carbonyl sulphide, dimethyl disulfide, butane and ethane. These components are typical of petroleum compounds seen from the highest components of alpha pinene 206.34 ng, dimethyl sulfide 196.65 ng and dimethyl disulfide 205.8 ng. The three components are petroleum components of hydrocarbons and non-hydrocarbons.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121278735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Kestabilan Kalman Filter Sistem Singular dengan Pendekatan Deterministik","authors":"Budi Rudianto","doi":"10.32734/st.v2i2.463","DOIUrl":"https://doi.org/10.32734/st.v2i2.463","url":null,"abstract":"Makalah ini membahas Kalman filter dan Persamaan Aljabar Ricatti (PAR) untuk waktu diskrit. Lebih lanjut, sistem deskriptor varian waktu ditampilkan dalm bentuk formulasi umum. Pendekatan deterministik digunakan untuk menentukan bentuk optimum menjadi formulasi 9-block. Pernyataan 9-block selain menyatakan tahapan kondisi ruang, juga menampilkan struktur sederhana yang menarik dan simetris. Kemudian, kami akan menunjukkan bahwa Persamaan Aljabar Ricatti (PAR) memiliki semidefinit dan menstabilkan sistem. \u0000  \u0000In this paper will discuss the Kalman filter and Riccati equation for discrete-time. Furthermore, time-variant descriptor systems presented in a common formulation. Deterministic approach used to determine the optimal form into the formulation \"9-block\". The expression \"9-block\", besides stating stages pending state space, also presents a simple structure that is interesting and symmetrical. And then, we will show that the Aljabar Riccati Eqution has a stabilizing semi-definit.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128315156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Profil Tingkat Literasi Kelautan Mahasiswa Pendidikan Biologi di Universitas Maritim Raja Ali Haji, Sebuah Studi Kasus Universitas Kemaritiman di Wilayah Kepulauan","authors":"Bony Irawan","doi":"10.32734/st.v2i2.519","DOIUrl":"https://doi.org/10.32734/st.v2i2.519","url":null,"abstract":"Pembangunan kemaritiman nasional yang sedang digalang di Indonesia harus didukung oleh sistem pendidikan yang menjalankan fungsinya dalam mendidik calon warga negara.Agar pembangunan kemaritiman itu berhasil, siswa harus dididik secara sistematis pada bangku sekolah untuk memiliki literasi kelautan yang baik.Selama ini pengetahuan tentang kelautan tidak menjadi fokus dan hanya mendapat porsi kecil pada kurikulum pendidikan nasional.Akibatnya siswa Indonesia tidak memiliki pengetahuan, sikap, dan persepsi yang positif terhadap laut. Guru memiliki peran sentral dalam pendidikan di sekolah. Kedepannya diperlukan guru biologi yang memiliki literasi kelautan yang baik agar dapat mendidik dan meningkatkan literasi siswa di sekolah. Implementasi prinsip dan konsep literasi kelautan didalam mata kuliah biologi laut diharapkan dapat meningkatkan tingkat literasi mahasiswa calon guru yang pada gilirannya akan memberi multiplier effect pada pendidikan siswa disekolah nanti. UMRAH sebagai penyelenggara pendidikan tenaga pendidik yang memiliki visi dan kekhasan dibidang kemaritiman seharusnya mampu membekali mahasiswa calon guru dengan literasi kelautan yang baik.Dalam penelitian ini diungkap tingkat literasi kelautan mahasiswa pendidikan biologi UMRAH sebelum dan sesudah mengikuti mata kuliah biologi laut.Penelitian ini diharapkan memberikan gambaran peran mata kuliah biologi laut dalam membentuk literasi kelautan mahasiswa.Data diperoleh dengan cara mengukur tingkat literasi kelautan mahasiswa sebelum dan sesudah mengikuti mata kuliah biologi laut. Hasil penelitian menunjukkan bahwa raw input mahasiswa memiliki tingkat literasi kelautan yang rendah, meskipun mayoritas mahasiswa berasal dari pulau-pulau kecil di Kepulauan Riau.Setelah mengikuti perkuliahan biologi laut, mahasiswa mengalami peningkatan literasi kelaut.Keberhasilan ini diidentifikasi disumbangkan oleh factor desain perkuliahan yang kontekstual dan praktikal.Dapat disimpulkan bahwa mata kuliah biologi laut mampu berperan dalam membantu pencapaian visi dan misi universitas dan jurusan dalam membekali mahasiswa dengan tingkat literasi kelautan yang baik. \u0000  \u0000Indonesia’s bid to become powerful maritime nation must be supported by a synchronized education system. However, the Kurikulum 2013 in effect today does not dictates a standalone marine or maritime subject to be taught at school. Thus, the ever so important ocean literacy must be taught through other relevant subject, i.e. biology. This task requires a highly competent biology teachers with masterful ocean literacy. At Maritime University of Raja Ali Haji Biology Education department, pre-service teacher is educated through several courses to enhance their ocean literacy. This study aimed to describe the efficacy of Marine Biology course in boosting the student’s ocean literacy. Data were obtained by measuring student’s ocean literacy level before and after taking the course. The result shows that student has very low initial ocean literacy ","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126312279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peningkatan Kualitas Perkuliahan Fisika Matematika I dengan Penggunaan Modul dan Lembar Kerja Mahasiswa Melalui Model Pembelajaran Kooperatif","authors":"Abdul Hamid","doi":"10.32734/st.v2i2.514","DOIUrl":"https://doi.org/10.32734/st.v2i2.514","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui (1) kualitas proses perkuliahan Fisika Matematika I, (2) peningkatan hasil belajar mahasiswa pada mata kuliah Fisika Matematika I dengan menggunaan modul dan lembar kerja mahasiswa (LKM) melalui model pembelajaran kooperatif, dan (3) mengetahui respon mahasiswa terhadap pelaksanaan perkuliahan Fisika Matematika I. Penelitian ini adalah penelitian tindakan kelas. Data tentang proses perkuliahan digali melalui aktivitas belajar mahasiswa dan dikumpulkan dengan metode observasi, data hasil belajar mahasiswa dikumpulkan dengan metode tes, dan data respon mahasiswa dikumpulkan dengan angket. Selanjutnya, data dianalisis menggunakan statistik deskriptif. Temuan penelitian ini adalah kualitas proses perkuliahan membaik dan hasil belajar mahasiswa mengalami peningkatan, sedangkan respon mahasiswa terhadap strategi perkuliahan yang diterapkan positif. \u0000  \u0000The purpose of this research is to know (1) the quality of lecturing process of Mathematics Physics I, (2) improvement of student learning outcomes in Physics Mathematics I course by using module and student worksheet through cooperative learning model, and (3) to know student response on the implementation of the lecture of Mathematical Physics I. This research is a classroom action research. Data about the lecturing process is explored through student learning activities and collected by observation method, student learning result data collected by test method, and student response data collected by questionnaire. Furthermore, the data were analyzed using descriptive statistics. The findings of this research are improved quality of lecturing process and student learning outcomes have increased, while the student response to lecture strategy applied positively.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121980391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengembangan Modul Pembelajaran Kimia menggunakan Pendekatan Ilmiah","authors":"Ellizar, Latisma, Sri Gusriawati","doi":"10.32734/st.v2i2.520","DOIUrl":"https://doi.org/10.32734/st.v2i2.520","url":null,"abstract":"Penelitian ini bertujuan untuk mengembangkan modul pengajaran Kimia berbasis Ilmiah untuk Hidrolisis Garam. Modul ini dibuat dengan menggunakan langkah-langkah pendekatan ilmiah yang terdiri dari mengamati, mempertanyakan, mengumpulkan data, bergaul dan berkomunikasi. Pendekatan model Ploomp digunakan dalam penelitian ini yang terdiri dari Define; Desain; Mengembangkan; dan Diseminasi. Modul ini divalidasi oleh delapan validator, dan dicicipi oleh tiga guru kimia dan siswa kelas XI IPA di tiga sekolah. Hasil analisis validitas data yang diperoleh menunjukkan bahwa modul yang dihasilkan memenuhi kriteria valid dilihat dari aspek konten, grafik, konstruk, dan bahasa. Hasil kepraktisan modul dari siswa dan guru terlihat dari waktu penggunaan dan kemudahan implementasi. Efektivitas modul ini dapat dilihat dari aktivitas dan hasil belajar siswa, aktivitas siswa dari ketiga sekolah tersebut selama proses Pembelajaran sangat efektif. Hasil belajar dari ketiga sekolah di kelas eksperimen menggunakan modul ini lebih tinggi dari kelas kontrol yang tidak kita modul. Hasil belajar diuji dengan pengujian hipotesis dari analisis data diperoleh bahwa that thitung > ttabel, di SMA Negeri 1 Gunung Talang dengan thitung bernilai 4,29 dan ttabel bernilai 1,68,  di SMA Negeri 1 Kubung, thitung 2,27 dan  ttabel 1,68 serta di SMA Negeri 1 Bukit Sundi, thitung  4,24 dan thitung 1,67 sehingga asumsi H0 tidak diterima dan H1 diterima pada tingkat kepercayaan 0,05. Ini membuktikan bahwa ada perbedaan yang signifikan dalam hasil belajar siswa antara kelas eksperimen dan kelas kontrol. Berdasarkan hasil itu, dapat disimpulkan bahwa Modul Pembelajaran Kimia berdasarkan pendekatan ilmiah dalam pelajaran hidrolisis garam kelas XI SMA / MA yang dihasilkan dapat dinyatakan sebagai praktik yang valid dan efektif. \u0000  \u0000This research was aimed at developing Scientific based Chemistry instructional modules for Salt Hydrolysis. The module is made by using scientific approach steps which consist of observing, questioning, collecting data, associating and comunicating. A Ploomp model approach was utilized in this study which consisted of Define; Design; Develop; and Disseminate. The module was validated by eight validators, and was tasted to three chemistry teachers and students of class XI IPA in three schools. The result of data validity analysis that was obtained showed that the module which was produced fulfilled valid criteria seen from the aspects of content, graphics, construct, and language. The module practicality result from students and teachers was practical seen from usage time and the implementation easiness. The effectiveness of this module can be seen from activity ad student’s learning result, the activity of students from those three school during Learning process was very effective. The learning result of those three schools in experiment class using this module was higher than control class which did not us the module. The learning result was tested with hypothesis t","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129746667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pembuatan dan Karakterisasi Kapasitor Barium Strontium Titanat (Bst) Ba0,75 Sr0,25 TiO3","authors":"Rahmi Dewi, Krisman Krisman, T. Pertiwi, Tengku Luqman","doi":"10.32734/st.v2i2.490","DOIUrl":"https://doi.org/10.32734/st.v2i2.490","url":null,"abstract":"Lapisan tipis Barium Strontium Titanate (BST) telah ditelaah dengan komposisi  Ba0.75 Sr0.25 TiO3 menggunakan metode sol-gel yang digabungkan pada suhu 600 dan 650oC. Lapisan tipis BST dikarakterisasi menggunakan Field Emission Scanning Electron Microscopy (FESEM) dan spektroskopi impedansi. Hasil dari karakterisasi FESEM untuk sampel pada suhu 600 dan 650oC ialah 55.83 nm dan 84.88 nm dari segi ketebalan secara berurutan. Hasil dari karakterisasi spektroskopi impedansi berdasarkan nilai frekuensi menunjukkan nilai impedansi yang nyata dan imajiner. Nilai kapasitsa pada frekuensi 20 Hz dari lapisan tipis BST pada suhu 600 dan 650oC ialah 69.36 dan 138.70 F. Konstanta dielektrik dari lapisan tipis BST pada suhu 600 dan 650oC ialah 22.17 dan 131.56 secara berurutan. \u0000  \u0000The thin film of Barium Strontium Titanate (BST) has been studied with composition of Ba0.75 Sr0.25 TiO3 by using sol-gel method that annealed in temperature of 600oC and 650oC. The thin film of BST is characterized by using Field Emission Scanning Electron Microscopy (FESEM) and an impedance spectroscopy. The results of FESEM characterization for samples in temperature of 600 dan 650oC are 55.83 nm and 84.88 nm in thickness respectively. The result of impedance spectroscopy characterization given frequency values obtained by the impedance value of real and imaginary.The capacitance value at a frequency of 20 Hz from a thin film of BST in temperature of 600 dan 650oC are 69.36 F and 138.7oF. The dielectric constant of the thin film of BST in temperature of 600 dan 650oC are 22.17 and 131.56 respectively.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131899187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multipel Representasi Berbasis PTK untuk Meningkatkan Kemampuan Berikir Kritis Siswa di SMP Negeri 2 Banda Aceh","authors":"Elmi Mahzum","doi":"10.32734/st.v2i2.521","DOIUrl":"https://doi.org/10.32734/st.v2i2.521","url":null,"abstract":"Kemampuan berpikir kritis sangat penting dimiliki, karena dengan memiliki kemampuan berpikir kritis dapat membantu kita dalam berpikir secara rasional dalam mengatasi permasalahan yang tengah kita hadapi dan mencari serta mengembangkan alternatif pemecahan bagi permasalahan tersebut. Salah satu upaya untuk membekali siswa dengan kemampuan berpikir kritis adalah melalui penerapan pendekatan multipel representasi yang menuntut siswa untuk memecahkan masalah sekaligus mengajukan masalah sehingga siswa benar-benar berperan sebagai seorang pemikir kritis. Tujuan penelitian ini untuk mengetahui peningkatan kemampuan berpikir kritis siswa di SMP Negeri 2 Banda Aceh pada materi gerak. Penelitian ini merupakan penelitian kuantitatif. Subjek penelitian adalah siswa kelas VIII-6 yang berjumlah 23 orang. Teknik pengumpulan data berupa tes tertulis. Teknik analisis data menggunakan uji N-Gain dan persentase. Hasil penelitian menunjukkan bahwa uji N-Gain kemampuan berpikir kritis diperoleh rata-rata N-Gain sebesar 0,60 dalam kategori sedang. Berdasarkan hasil penelitian dapat disimpulkan bahwa pendekatan multipel representasi dapat meningkatkan kemampuan berpikir kritis siswa SMP. \u0000  \u0000The critical thinking is very important to have, because by having the ability to think critically can help us in thinking logically in addressing the issue of who we are facing and find and develop an alternative solution for the problem. One of the efforts to equip students with the ability to think critically is through the implementation of the multiple representation of the demanding students to solve the problem and propose a problem so that students actually acts as a thinker critical.the purpose of this study to know the increased ability of the critical thinking on a student in middle school district 2 Banda Aceh on the matter of motion. The research is a research quantitive. The subject of research is a class VIII-6 of 23 people. The collection of data in the form of a written test. The analysis of data in the N-Gain and the percentage of. The results showed that the N-Gain the ability to think critically by the average N-Gain of 0,60 in the category. Based on this research can be concluded that the approach of multiple representation can enhance the ability of critical thinking on a middle school student.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130057733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identifikasi Bidang Gelincir Menggunakan Metoda Geolistrik Tahanan Jenis Daerah Rawan Longsor Di Kota Padang Dan Kabupaten Agam Sumatera Barat","authors":"Akmam Akmam, Harman Amir;, Amali Putra","doi":"10.32734/st.v2i2.487","DOIUrl":"https://doi.org/10.32734/st.v2i2.487","url":null,"abstract":"Sumatera Barat memiliki topografi bergelombang dan curam. Sumatera Barat disamping memiliki kemiringan topografi lebih dari 30 derajat, juga memiliki curah hujan yang tinggi. Kondisi tersebut menjadikan kawasan ini memiliki potensi resiko longsor yang cukup tinggi. Masalah ini perlu ditanggulangi dengan melakukan penelitian tentang bagaimana karakteristik permukaan bidang gelincir sebagai studi pendahuluan mitigasi longsor di Sumatera Barat. Informasi tentang karakteristik bidang lincir di daerah rawan longsor di Sumatera Barat belum banyak tersedia. Dengan alasan di atas, dilakukan penelitian yang bertujuan untuk mengetahui kedalaman dan kemiringan bidang gelincir di Kota Padang dan Kabupaten Agam Sumatera Barat. Penelitian eksploratif ini menggunakan metode resistivitas dengan peralatan Ares (produksi Cheko). Data resistivitas semu diinterpretasikan menggunakan metode inversi Least-Square yang telah dioptimalkan untuk mendapatkan penampang 2D resistivitas sesungguhnya. Ketebalan dan kemiringan permukaan bidang gelincir daerah target dihitung berdasarkan penampang 2D resistivitas sesungguhnya dengan bantuan data topografi. Penelitian menunjukkan bahwa rata-rata kedalaman dan sudut permukaan bidang gelincir di Kabupaten Agam Sumatera Barat masing-masing adalah 410 dan 16,5 meter. Rata-rata kedalaman dan sudut kemiringan permukaan bidang lincir di Padang masing-masing 380 dan 12,5 meter. Batuan yang berperan sebagai permukaan bidang gelincir adalah Clay. \u0000  \u0000West Sumatra has wavy and steep topography. Beside, West Sumatra has topographic slope more than 30, it also has high rainfall. This condition makes this area has a high potential of landslide risk. This problem needs to get a scientific study of how the surface characteristics of the landslide field as a preliminary study of landslide mitigation in West Sumatera. Information on the characteristics of landslide surfaces in landslide prone areas in West Sumatra has not been widely available. Based on the above reason, research has been done to find out the depth and slope of the landslide surface in Padang and Agam Regency of West Sumatra. This explorative research uses resistivity method using Ares equipment set (Cheko production). The apparent resistivity data is interpreted using the optimized optimized least-squares smoothness-constrain inversion method in order to obtain true resistivity 2D cross-section.  The layer thickness and the slope of landslide surface the targeted area was calculated base on true resistivity 2D cross-section that synchronized with topographic data. The results showed that the average both depth and angle of the landslide surfaces in Agam regency of West Sumatra were 41 degree and 16.5 meters respectively. The average both depth and angle of the landslide surfaces in Padang were 38 degree  and 12.5 meters respectively. The rock that acts as a landslide surfaces is Clay.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121766618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trace Matriks Berbentuk Khusus 2 X 2 Berpangkat Bilangan Bulat Positif","authors":"Fitri Aryani, Titik Fatonah","doi":"10.32734/st.v2i2.472","DOIUrl":"https://doi.org/10.32734/st.v2i2.472","url":null,"abstract":"Trace matriks ialah jumlah dari elemen diagonal utama dari matriks kuadrat. Penelitian ini membahas mengenai jejak kekuatan bilangan bulat positif matriks nyata 2x2. Ada dua langkah dalam membentuk bentuk umum dari trace matriks. Pertama, tentukan bentuk umum (An) dan buktikan menggunakan induksi matematika. Kedua, tentukan jejak bentuk umum (An) dan buktikan dengan bukti langsung. Hasilnya diperoleh bentuk umum jejak daya bilangan bulat positif dari matriks nyata 2x2 nyata untuk n ganjil dan n genap. \u0000  \u0000Trace matrix is ​​the sum of the main diagonal elements of the square matrix. This Paper discusses the trace of positive integer power of  real 2x2 special matrices. There are two steps in forming the general shape of the trace matrix. First, determine the general form of (An) and prove it using mathematical induction. Second, determine the general form trace (An) and prove it by direct proof. The results obtained a general shape of trace of positive integer power power of  real 2x2 special matrices for n odd and n even.","PeriodicalId":117967,"journal":{"name":"Talenta Conference Series: Science and Technology (ST)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121396948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}