bluuebunny/crossref_metadata_2025 huggingface dataset:
THE EFFECTIVENESS OF LISTEN AND DRAW GAME TOWARDS STUDENT’S MOTIVATION IN LEARNING SKILL
Authors: Sasmita Mariana
Published: February 2019

This research is aimed at to finding The Effectiveness of listen and draw Game towards Students’ Motivation in Learning listening at the Second Grade Students of MTs Aunul Ibad NW Beroro in Academic Year 2017/2018. The method of this research was applied is experimental research (quantitative approach). The population of this research was the students of MTs Aunul Ibad NW Beroro in academic year 2017/2018. The sample of the study was 36 students consist of two classes. The sample technique used in this research was cluster random sampling by using lottery. The technique which used to analysis the data was t-test and r-test formula. From the research data found out that the students’ t-test score (3,97) is highest than that the value of t-table (2.028 ). Based on the result of the study, it can be concluded that the use of listen and draw game is effectiveness in learning listening at second grade students of MTs Aunul Ibad NW Beroro and the result correlation between students’ motivation and listening, it shows r-test (0,99) > r-table (0,468). Based on the result of the study, it can be conclude there is correlation between students’ motivation and listening is accepted. In other word, alternative hypothesis (Ha) is accepted and null hypothesis (Ho) is rejected.
THE EFFECT OF TWO PICTURE GAME TOWARDS STUDENTS’ SPEAKING ANXIETY
Authors: ZainuddinSabri Muh. Mahrup
Published: February 2019

This research is aimed to find out the effect of Two Picture Game Towards Students’ speaking Anxiety at SMAN 1 Jerowaru. The research was experimental research and the research design that was used quasi experimental, control and experimental group design. The population of the study was the IPS 1 and IPS 2 students of SMAN 1 Jerowaru which consisted of two classes. Two classes were chosen as the samples, those were IPS 1 as experimental class, and IPS 2 as control class. They were chosen by using sampling technique. Experimental class was treated by using two picture game, and control class was treated by slowly reveal. The data of the research were primarily gathered from post test and questionnaire, where the result of mean scores of an experimental class, was higher than the result of mean scores of control group. Then, in analyzing the data of the research the researcher used SPSS. Based on the analysis of the data above, it was found that t-test (to) score was 8.271 with the degree of freedom (df) = 20 and t-table (tt) was 000 at the significant level =0.05 It was showed that t-test is lower than t-table, in can be concluded that two picture game was not effective for students’ anxiety in speaking at SMAN 1 Jerowaru.
THE EFFECTIVENESS OF MIND READING GAME IN TEACHING
Authors: Faradillah Nur
Published: February 2019

This research was aimed to find out the effectiveness of Mind Reading Game in teaching grammar. This research was experimental design. The population of this study was the second grade students of MA Darul Kamilin which consisted of two classes. One classes were chosen as the samples, those were XI A Class as experimental group consisted of twenty three students and XI B Class as control group consisted twenty three students. They were chosen by using quasi experimental. Experimental group was treated by Mind Reading Game and control group was treated by Mind Game. The instrument that was used objective test in forms of multiple choices. Then, the scores were analyzed by using statistical analysis. It showed the mean score of experimental group was 20,34 while the mean score control group was 16,34 and the value of t (t test) = -4,756 was higher than  (t table) = 2,0154 at the significance level of 5% and the number of degree freedom (df) 44. It meant that alternative hypothesis (Ha) was accepted and null hypothesis (Ho) was rejected. It could be conclude that Mind Reading Game was effective in teaching grammar at the second grade students of MA Darul Kamilin
THE EFFECT OF COOPERATIVE LEARNING TYPE TERROR CARDS AND NIGHTMARE CARDS TOWARDS THE ELEVENTH GRADE STUDENTS’ SPEAKING
Authors: Hendrawati Enda
Published: February 2019

This research aimed to find out the effect of cooperative learning type terror cards and nightmare cards towards students’ speaking skill at SMAN 1 Sakra Timur in academic year 2017/2018. The research was pre-experimental with one-shot case study design. The population of the study was the eleventh grade students of SMAN 1 Sakra Timur that consisted of 3 classes. All of classes were chosen as the samples, those were XI IPS 1 as experimental group I, XI IPS 2 as experimental group II and XI IPS 3 as control group. They were chosen by using total sampling technique. Experimental group I treated by using terror cards, experimental group II treated by using nightmare cards, and control group treated by using think pair share. The data of the research were gathered from speaking test and the data analysis used ANOVA. Based on the data analysis was gotten F-test = 3.352 and F-table = 2.44. It means that f-test was higher than f-table (3.352 > 2.44) with signification level 0.04. So that way, alternative hypothesis (Ha) accepted and null hypothesis (Ho) rejected. Therefore, it took conclusion that there is significant effect of cooperative learning toward students' speaking skill at SMAN 1 Sakra Timur in academic year 2017/2018.
Pencarian Jalur Terpendek dengan Algoritma Dijkstra
Authors: Harahap Muhammad Khoiruddin , Khairina Nurul
Published: February 2019

Abstrak — Persoalan dalam menemukan jalur terpendek seiring dengan penghematan waktu yang tersingkat. Hal ini menjadi penting dalam kedinamisan masyarakat perkotaan. Jumlah rute yang ditempuh juga menjadi persoalan tersendiri untuk mencapai tempat tujuannya. Kita akan menentukan titik-titik manakah yang harus dilalui sehingga mendapatkan tempat tujuan dengan jarak terpendek dan penggunaan waktu yang tersingkat dengan menggunakan algoritma Dijkstra. Pencarian lintasan terpendek merupakan persoalan optimasi. Nilai pada sisi graph bisa dinyatakan sebagai jarak antar kota. Lintasan terpendek bisa diartikan sebagai proses minimalisasi bobot pada lintasan. Untuk mengatasi permasalahan itu maka diperlukan adanya suatu simulasi yang dapat membantu menentukan jalur terpendek. Algoritma Dijkstra bisa juga dikatakan sebagai algoritma Greedy yang pada pembahasan ini mampu memudahkan kita mencari jalur rute terpendek dan menjadi lebih efekfif.

Kata Kunci — Dijkstra, Greedy, Jalur terpendek, Optimasi waktu.
EFFECT OF HYPOXIA ON CARBOHYDRATE METABOLITES AND HAEMATOLOGICAL INDICES OF SNAKEHEAD FISH, CHANNA STRIATUS
Authors: KUMAR ASHOK , SHARMA ARVIND KUMAR , SRIVASTAVA SUSMITA , KUMAR ASHOK
Published: February 2019

The effect of hypoxia on the level of carbohydrate metabolites glycogen and glucose were studied in brain, muscles and liver of snakehead fish, Channa striatus. Hypoxia exposure decreased the glycogen level in brain and muscles of female fishes but increased in male fishes. Hypoxia exposure increased glucose level in brain and muscles of female fishes but decreased in male fishes. The level of glycogen and glucose in liver decreased in both male and female fishes during hypoxia. In the present study, the haematological data of Channa striatus revealed that significant increase (P<0.05 and Â0.01) was observed in red blood cell count (RBC) and hemoglobin (Hb) content respectively. White blood cell (WBC) count showed significant (P<0.01) increase when compared to the control. Increase in haematological indices means that fish was exposed to hypoxia and was under stress.
PROFILING OF GUAVA GENOTYPES GROWN IN VIDARBHA CONDITIONS ON THE BASIS OF MORPHOLOGICAL TRAITS
Authors: PATIL R.A. , BHARAD S.G. , SAWANT S.N.
Published: February 2019

Assessment of genetic diversity in the available germplasm is the prerequisite for development of improved genotypes through planned breeding programmes. In the view of this Forty-eight genotypes of seedling origin guava along with 1 check (L-49/Sardar) collected and conserved at germplasm block, Main Garden, Department of Horticulture, Dr. P. D. A. University, Akola were evaluated for genetic variability and diversity based on the qualitative characteristics. The genotypes were evaluated for sixteen morphological traitsviz. tree, leaf, floral and fruit traits. Results Show considerable extent of variability amongst the 49 genotypes in each traits. A sizeable amount of intrapopulation diversity recorded can be used to identify diverse parents which can be utilized in hybridization programmes.
WATER QUALITY OF PARICHHA DAM RESERVOIR IN RELATION TO FISHERIES IN JHANSI (U.P.) INDIA
Authors: RATAN NEEL , SRIVASTAVA SHARAT , PATHAK ALOK , SINGH U.N.
Published: February 2019

Physico-chemical characteristics of Parichha dam reservoir of Jhansi in Uttar Pradesh have been studied. The water temperature varied between 23.0 to 37.00C. The transparency, pH, chlorides and total hardness were in the range of 100 to 145 cm, 7.8 to 9.2, 42.0 to 59.17 mg/l and 100-197 mg/l respectively. The total alkalinity, dissolved oxygen and total dissolved solids ranged between 193 to 389, 5.2 to 8.6 and 90 to 310 mg/l respectively. The study revealed that the reservoir water is suitable for fisheries.
Post-globalization and new contours of the future Modernity
Authors: Asochakov Yury
Published: February 2019

This article is intended to discuss the prospects and the ways of constructing a new model of global development in a situation of factual and theoretical uncertainty indicated in social and political science by the concept of post-globalization. It aims at analyzing the critical and theoretical potential of the concept of post-globalization for understanding the direction of shifting the paradigms of conceptualization of the social future. During the last two decades, the discourse of post-globalization exists as an alternative to the triumphant promotion of globalization as a neoliberal / neoconservative ideal for the world’s future in the context of the “end of history”. The post-globalization concept highlighting the limits of the globalization project serves as a possible heuristic tool for transcending its boundaries. But constructing the positive model of the social future requires a new set of concepts – new language – rooted in the driving forces of now-happening historical reality. This research helps to specify the direction of the further inquiry.
EFEKTIVITAS ASAM NITRAT (HNO3) SEBAGAI PELARUT ALTERNATIF PADA PROSES ACID WASH TERHADAP PLATE ELECTROLYZER DI PT KALTIM NITRATE INDONESIA
Authors: Septiani Mimin , Santoso Kurniawan , Abdul Majid Rafdi
Published: February 2019

Proses acid wash di electrochloronation merupakan proses pembersihan kerak menggunakan pelarut asam. Asam Chlorida (HCl) adalah pelarut asam yang paling umum digunakan untuk melarutkan kerak CaCO3. Penelitian ini bertujuan menentukan konsentrasi optimum HNO3 sebagai pelarut alternatif dengan mengkaji efektifitasnya menggunakan HCl sebagai pembanding. Sampel kerak diambil dari plate electrolyzer sebanyak 5 gram. Larutan HNO3 dan HCl diencerkan dalam beberapa variabel konsentrasi, 2%; 3%; 4%; 5%; dan 6%. Sampel CaCO3 dilarutkan dengan HNO3 dan HCl kemudian dihitung jumlah kerak yang terlarut. Banyaknya zat terlarut berbeda sesuai dengan konsentrasi pelarut.Hasil penelitian ini menunjukkan HCl dengan konsentrasi 3% tingkat kemolaran 0,83 M mampu melarutkan sebanyak 76,07% dari total sample kerak dan HNO3 dengan konsentrasi 5% tingkat kemolaran 0,81 M juga mampu melarutkan sebanyak 76,04% dari total sampel kerak CaCO3. Sehingga HNO3 dianggap mampu menjadi pelarut alteratif.
ANALISIS PENANGANAN AIR ASAM TAMBANG BATUBARA
Authors: Wahyudin Indra , Widodo Sri , Nurwaskito Arif
Published: February 2019

Kegiatan pertambangan batubara menggunakan sistem tambang terbuka berpotensi menimbulkan kerusakan lingkungan, salah satu kerusakan lingkungan adalah munculnya air asam tambang. Tujuan dilakukannya penelitian ini adalah untuk mengetahui efektifitas pengelolaan air asam tambang pada settling pond berdasarkan uji AHP (Analytic Hierarchy Process) dari parameter yang digunakan agar sesuai dengan standar bakumutu. Penelitian ini dilakukan dengan mengumpulkan data hasil dokumen perusahaan berupa data potensial of hydrogen (pH) dan total suspenden solid (TSS), untuk mendapatkan nilai rata-rata bulanan settling pond pada periode tahun 2015 dan dibandingkan dengan standar baku mutu pemerintah yang diolah dan di analisis secara statistik dengan menggunakan Microsoft Excel. Hasil analisis secara statistik menunjukan bahwa kualitas air asam tambang pada settling pond WMP22 adalah pH 6.68 dikategorikan baik dan sesuai dengan yang ditetapkan pemerintah daerah yaitu pH 6. Sedangkan untuk nilai TSS adalah 48.09 mg/l sesuai dengan kriteria yang ditetapkan. Dengan demikian penggunaan uji AHP pada settling pond dianggap sudah efektif sebagai metode pengolahan air asam tambang.
RANCANGAN TEKNIS KEMAJUAN PENAMBANGAN ANDESIT JANGKA PENDEK DI KUARI PT HOLCIM BETON KECAMATAN RUMPIN KABUPATEN BOGOR JAWA BARAT
Authors: Halim Pelu Abdul , Sudiyanto Anton , Agung Cahyadi Tedy , Munandar Arif
Published: February 2019

PT Holcim Beton memulai kegiatan penambangan di tahun 2018 sehingga perlu dilakukan kegiatan perencanaan tambang yang meliputi desain tambang, alat yang dibutuhkan selama kegiatan penambangan dan mencari sisa cadangan untuk disesuaikan dengan target produksi yang ditentukan dari perusahaan yaitu 2.600.000 ton/tahun. Penelitian ini bertujuan untuk menghasilkan suatu rancangan teknis kemajuan penambangan yang terencana untuk memenuhi target produksi perusahaan. Penelitian ini difokuskan pada rancangan penambangan jangka pendek yaitu kegiatan penambangan untuk merencanakan desain tambang yang dilakukan dalam harian, mingguan, bulanan, dan 3 bulanan. Geometri jenjang yang digunakan sesuai dengan rekomendasi data geoteknik perusahaan yaitu tinggi jenjang 15 m, lebar jenjang 20 m, kemiringan jenjang tunggal 80o, dan kemiringan jenjang keseluruhan 40o. Lebar jalan angkut pada jalan lurus ialah 18 m dan lebar jalan angkut pada tikungan ialah 21 m. Grade jalan yang digunakan pada tanjakan sebesar 8%. Berdasar perhitungan jumlah cadangan andesit yang dapat ditambang sebesar 2.110.746,3 m3 atau setara dengan 5.276.865,8 ton jika menggunakan berat jenis 2,5 ton/m3. Kebutuhan alat angkut DT771 C dan alat muat EX385 C pada kemajuan tambang bulan Januari 2018 sampai bulan Desember 2019 konstan tidak ada perubahan yang signifikan sehingga alat angkut yang dibutuhkan sebesar 4 unit dan alat muat yang dibutuhkan ialah 1 unit dikarenakan produksi tetap sehingga kegiatan penambangan yang dilakukan dapat berjalan secara efektif dan efisien.
PENGENDALIAN PERSEDIAAN BAHAN BAKU MENGGUNAKAN METODE MIN-MAX STOCK DI PT. PANCA USAHA PALOPO PLYWOOD
Authors: Mail Abdul , Asri Muhammad , Padhil Ahmad , Takdir A Takdir A , Chairany Nurul Chairany
Published: February 2019

Penelitian ini bertujuan untuk menghindari kelebihan dan kekurangan bahan baku dengan menghitung besarnya persediaan bahan baku di PT. Panca Usaha Palopo Plywood. Penelitian ini menggunakan metode studi kasus yang bersifat kualitatif yang berguna menerapkan solusi pada masalah terkini. Data penelitian ini diperoleh dari dari data pertahun perusahaan dengan pihak terkait. Temuan penelitian ini menunjukkan bahwa standar pelaksanaan dan pengelolaan persediaan bahan baku telah sesuai dengan standar yang telah ditentukan perusahaan. Peneliti menyimpulkan bahwa PT. Panca Usaha Palopo Plywood cukup efisien, efektif, dan ekonomis namun masih terdapat kelemahan-kelemahan dalam kegiatan dalam pengelolaan persediaan bahan baku perusahaan seperti kurangnya pemahaman karyawan akan peraturan mengenai tindakan disiplin yang ada, kurangnya kepuasan karyawan, terhadap sikap perusahaan dalam pemberian kompensasi, serta pemesanan bahan baku yang tidak teratur sehingga mengakibatkan penumpukan di gudang.dan sebaliknya kekurangan stock digudang, pengelolaan persediaan bahan baku.
Analisis Penerapan Lean Manufaktur Untuk Mengurangi Pemborosan Di Lantai Produksi PT. Eastern Pearl Flour Mills Makassar
Authors: Chairany Nurul , Lantara Dirgahayu , Ikasari Nadzirah , Ukkas Alfhyan
Published: February 2019

Pemborosan yang terjadi dapat mengakibatkan kerugian pada perusahaan, salah satu contoh kerugian yang dapat ditimbulkan karena adanya pemborosan adalah waktu penyelesaian produk yang lebih lama dibandingkan dengan yang sudah direncanakan tidak memberikan nilai tambah (non value added), maka yang menjadi tujuan untuk menghilangkan pemborosan di lantai produksi, dengan merancang VSM (Future State Map) yang sesuai dengan kondisi perusahaan dengan mengintifikasi weste dengan menggunakan metode 5W- 1H ( what, who, where, when, why dan how) Setelah dilakukan perancangan future valuue stream map sehingga waktu (current state map) menunjukkan bahwa total lead time adalah sebesar 2890.5 menit dan proses pada future stream map lead time sebesar 2.740,5 menit maka dari itu ada pengurangan proses waktu lead time sebesar 150 menit dengan takt time dari 0,10 menit/ unit, kapasitas produksi terpenuhi 359 ton/hari.
PENGEMBANGAN MODEL PENGUKURAN KINERJA AGRI- FOOD SUPPLY CHAIN BERKELANJUTAN BERBASIS PENGELOLAAN RISIKO
Authors: Profita Anggriani , Kartika Rahayu Deasy
Published: February 2019

Risiko dan ketidakpastian selalu menjadi isu penting dalam pengelolaan rantai pasok. Khususnya dalam agri- food supply chain (AFSC), kompleksitas pengelolaan risiko dan ketidakpastian meningkat karena karakteristik produk hasil pertanian yang mudah rusak, serta sifat produksinya yang sebagian besar didasarkan pada faktor cuaca dan proses biologi yang tidak terduga. Oleh karena itu, diperlukan upaya pengelolaan risiko yang menyajikan penilaian terhadap faktor-faktor yang dapat melemahkan daya saing dan kinerja AFSC. Penelitian ini mengintegrasikan kerangka pengukuran kinerja AFSC dan konsep Rapid Agricultural Supply Chain Risk Assessment, dengan memperhatikan aspek-aspek berkelanjutan yang meliputi aspek ekonomi (profit), sosial (people), dan lingkungan (planet). Kerangka teoritis yang dihasilkan diuji menggunakan Structural Equation Modeling (SEM). Kuesioner diberikan kepada 193 petani tanaman pangan yang tersebar di sentra- sentra pertanian Kabupaten Paser dan PPU. Berdasarkan analisis model konstruk (outer model), seluruh indikator memenuhi convergent validity, kecuali indikator PR12 yang berkaitan dengan risiko regulasi hukum dan birokrasi. Oleh karena itu, indikator ini dikeluarkan dari konstruk model penelitian. Setelah semua indikator tervalidasi, selanjutnya dilakukan uji reliabilitas dengan melihat nilai composite reliability dari blok indikator yang mengukur setiap konstruk. Seluruh konstruk memiliki nilai di atas 0.7, sehingga semuanya dapat dikatakan reliabel. Adapun berdasarkan analisis model struktural (inner model), dapat disimpulkan bahwa pengelolaan risiko berpengaruh signifikan terhadap kinerja AFSC dan perspektif berkelanjutan. Akan tetapi, variabel perspektif berkelanjutan tidak berpengaruh signifikan terhadap kinerja AFSC.
HUBUNGAN ANTARA KECERDASAN NATURALIS DENGAN SIKAP PEDULI LINGKUNGAN SISWA KELAS IV SEKOLAH DASAR NEGERI GUGUS HARAPAN KECAMATAN SALO KABUPATEN KAMPAR
Authors: Rosiana Elvera Rosa , Noviana Eddy , Linda Gus
Published: February 2019

ABSTRACTThis research was motivated by the importance of naturalist intelligence on environmental care attitude. Naturalist intelligence is one of efforts to improve environmental awareness. Naturalist intelligence is a very important intelligence to have in this era. This kind of intelligence is needed because nowadays, the world is invaded by construction, technology and economics, which are caused by humans, so it is very necessary for people who have naturalist intelligence to devote themselves voluntarily to careand protect the earth. This study aims to determine the effect of naturalist intelligence with an environmental care attitude towards the fourth grade students of Gugus Harapan Public Elementary School in Salo District, Kampar Regency. This is a correlation research with quantitative methods. In order to obtain the data of naturalist intelligence and environmental care, this study used instrument in the form of a questionnaire. The results of the study showed that there was a relationship between naturalist intelligence and the environmental care attitude of the students of GugusHarapanelementary school in Salo District, Kampar regency. It can be seen that the value of r is 0.512 with the level of moderate relationship and naturalist intelligence influences the attitude of caring for the environment by 26.3%.
UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA MELALUI PENDEKATAN PAIKEM SISWA KELAS 1 SD NEGERI 024 LIMAU MANIS KECAMATAN KAMPAR KABUPATEN KAMPAR
Authors: Hennizal Hennizal
Published: February 2019

Penelitian ini bertujuan untuk meningkatkan hasil belajar Matematika melalui pendekatan PAIKEM siswa kelas 1 SD Negeri 024 Limau Manis Kecamatan Kampar Kabupaten Kampar. Penelitian ini dilaksanakan di SD Negeri 024 Limau Manis Kecamatan Kampar Kabupaten Kampar. Subjek penelitian adalah siswa kelas 1 berjumlah 11 siswa, yaitu 7 orang siswa laki-laki dan 4 orang siswa perempuan. Penelitian ini dilaksanakan dalam dua siklus dan empat kali pertemuan. Setiap siklus menggunakan prosedur pelaksanaan penelitian yaitu perencanaan, pelaksanaan tindakan, pengamatan dan refleksi.Hasil penelitian menunjukkan bahwa data perilaku aktivitas belajar siswa pada siklus I dengan kategori amat baik 11,36% dan siklus II yang berkategori amat baik 22,73%. Dengan demikian terjadi peningkatan 11,37%. Untuk hasil belajar pada siklus I, rata-rata yang tuntas 73,63% dan siklus II 85,45%. Dengan demikian terjadi peningkatan 11,82%. Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan pendekatan PAIKEM dapat meningkatkan hasil belajar siswa kelas 1 SD Negeri 024 Limau Manis Kecamatan Kampar Kabupaten Kampar.
PENERAPAN MODEL PEMBELAJARAN PICTUE AND PICTURE UNTUK MENINGKATKAN HASIL BELAJAR IPA SISWA KELAS II.A SD NEGERI 004 CENDIREJO KECAMATAN PASIR PENYU KABUPATEN INDRAGIRI HULU
Authors: Hasnawati Hasnawati
Published: February 2019

ABSTRAKPenelitian ini bertujuan untuk meningkatkan hasil belajar Ilmu Pengetahuan Alam (IPA) siswa dengan penerapan model pembelajaran picture and picture di kelas III Sekolah Dasar Negeri 004 Cendirejo Kecamatan Pasir Penyu. Penelitian ini merupakan penelitian tindakan kelas (Classroom Action Research) yang mencakup kegiatan perencanaan (planning), tindakan (action), observasi (observation), refleksi (reflection) atau evaluasi. Hasil penelitian menunjukkan, dilihat dari skor dasar siswa yang tuntas sebesar 13 orang dengan persentase 46%. Setelah dilakukan perbaikan pada siklus I, hasil belajar siswa meningkat, hal ini dibuktikan dengan siswa yang tuntas sebesar 20 orang atau 71%. Sedangkan pada siklus II, hasil belajar siswa kembali meningkat menjadi 28 orang siswa yang tuntas dengan persentase 100%. Dari analisis hasil penelitian ini dapat disimpulkan bahwa dengan menerapkan model pemebelajaran Picture and Picture dapat meningkatkan hasil belajar IPA siswa kelas II SDN 004 Cendirejo Kecamatan Pasir Penyu Kabupaten Indragiri Hulu.Kata kunci: model picture and picture, hasil belajar IPA. ABSTRACTThis study aims to improve student learning outcomes with the application of a picture and picture learning model in class III 004 Cendirejo Public Primary School Pasir Penyu District. This research is a classroom action research that includes planning, action, observation, reflection or evaluation activities. The results showed, seen from the basic score of students who completed at 13 people with a percentage of 46%. After making improvements in the first cycle, student learning outcomes increase, this is evidenced by students who complete by 20 people or 71%. While in the second cycle, student learning outcomes again increased to 28 students who completed a percentage of 100%. From the analysis of the results of this study it can be concluded that by applying the Picture and Picture learning model can improve the learning outcomes of Natural Sciences class II 004 Public Primary School Cendirejo Pasir Penyu District Indragiri Hulu.Keywords: model picture and picture, learning outcomes of Natural Sciences.
PENGGUNAAN MEDIA EDUKATIF KARTU DOMINO UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS VII.9 MTS NEGERI DUMAI TAHUN PELAJARAN 2017/2018
Authors: Sumini Sumini
Published: February 2019

This research is a Classroom Action Research that have aimed to improve students learning result on the subject of  Linear Equation with One Variable using media educative Domino Card games in the class VII.9 MTs Negeri Dumai on odd semester, academic year 2017/2018. This class consisting of 37 students with 17 male students and 20 female students.  This research was conducted in two cycles comprising 3 meetings in each cycle. The data of the research were collected by using some techniques, that is  by using test after each cycle and observation each meetings. The data of was collecting using quantitative  and qualitative analyze. The result of this research using media educative Domino Card games can improve students learning result. There was an improvement on the mean score of the test. In the first cycle it was 74.05 and improved to 84.32 in the second cycle. This technique could make the students pay attention to the lesson properly.
MENINGKATKAN HASIL BELAJAR IPS SISWA KELAS V DENGAN MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD DI SD NEGERI 012 SEI LALA KECAMATAN SUNGAI LALA KABUPATEN INDRAGIRI HULU
Authors: Partini Partini
Published: February 2019

The learning activities of Social Sciences (IPS) are part of the process of education in schools and have a role in life. One of them is thatsocial studies education has an important role in educating the life of the nation. Therefore, from time to time efforts are always made toimprove the quality of social studies education. Recognizing the importance of social studies education, efforts need to be made to improvethe learning process to improve student learning outcomes. Class action research is an improvement in the learning process to solveproblems faced by teachers in the classroom. Data obtained after research on teacher activities in the first cycle of the 1st meeting with apercentage of 50%, the second meeting with a percentage of 63%, in the second cycle at the third meeting percentage of 77%, and at the 4thmeeting the percentage obtained 86%. Observation data of student activities in this study obtained the percentage of the first cycle of the firstmeeting amounted to 52%, the second meeting was 61%, in the second cycle the third meeting was 75%, and the fourth meeting wasobtained 85% percentage proved that student activity has increased. Data on increasing learning outcomes of students in grade V SDN 012Sei Lala Kecamatan Sungai Lala in the initial data obtained an average of 60, in the daily test I obtained a class average of 75, and in dailytests, II obtained an average of 86. This proved that the STAD cooperative model in social studies learning is effectively used to improvesocial science learning outcomes of fifth-grade students.
ANALISIS KEKUATAN PADA TURBIN ANGIN SUMBU VERTIKAL (VAWT) SUDU DATAR DENGAN SOFTWARE
Authors: Rachmanu Fatkur
Published: February 2019

Prinsip kerja turbin angin adalah energi kinetik angin yang diterima oleh sudu turbin diteruskan menjadi energi putar yang memutar alternator sehingga menghasilkan energi listrik. Metode elemen hingga merupakan suatu metode perhitungan atau komputasi matemetika diskrit untuk menemukan penyelesaian. Dewasa ini Metode Elemen Hingga (MEH) menggunakan bantuan software komputer untuk mempercepat proses perhitungan dalam jumlah banyak dan perhitungan yang melibatkan elemen berupa matriks yang banyak. Pemodelan turbin angin sumbu vertikal sudu bidang datar bertingkat dua dengan jumlah sudu 10 buah dengan data kecepatan angin 6,1 m/detik yang menghasilkan. Torsi putar sebesar 0,44 Nm, tegangan maksimum yang terjadi sebesar 3,8 kPa,  defleksi sebesar 3,88 x 10-3 mm serta angka kemanan 26, Material sudu menggunakan Aluminium 1060. Menjadi aman karena nilai maksimum yang terjadi masih dibawah yield strength dan safety faktor lebih dari 2. Perhitungan tidak melibatkan berat sudu, getaran, sambungan las.
PEMETAAN KETEBALAN LAPISAN SEDIMEN WILAYAH KLATEN DENGAN ANALISIS DATA MIKROTREMOR
Authors: Prastowo Rizqi , Prabowo Urip Nurwijayanto , Desiasni Rita , Utari Melfa , Puspasari Fitri
Published: February 2019

Daerah Klaten dan sekitarnya secara geologi tertutup oleh endapan fluvial vulkanik Merapi,sehingga identifikasi struktur geologi bawah permukaan tidak nampak. Penelitian ini bertujuan untuk memetakan kedalaman lapisan sedimen di dataran klaten. Metode yang digunakan adalah Horizontal to Vertical Spectral Ratio (Metode Nakamura) dan pengukuran dilakukan secara grid sebanyak 31 titik. Hasil analisis frekuensi natural antara 0,67 – 10,655 Hz dan pemetaan lapisan sedimen yaitu mencapai 80-90m di kecamatan Kalikotes tepatnya desa Mojayan, Desa Gumulan dan Desa Kalikotes, sedangkan ketebalan lapisan sekitar 5-15m sebagian besar berada pada kecamatan Klaten Utara. Potensi kerusakan akibat efek ketebalan ini berakibat pada peningkatan ground shaking di permukaan akbat mikrozonasi.
Penentuan Pit Limit Penambangan Batubara Dengan Metode Lerchs-Grossmann Menggunakan 3DMine Software
Authors: Sidiq Hidayatullah , Pusvito Idra
Published: February 2019

Kondisi tambang batubara didunia dan khususnya di Indonesia sedang mengalami krisis dikarenakan turunnya harga batubara. Dengan turunnya harga batubara pasti berpengaruh terhadap target produksi dan profit. Berkurangnya target produksi pasti akan berdampak berubahnya sequence penambangan. Untuk mengatasi perubahan tersebut perlu dilakukan penentuan pit limit penambangan sejak awal agar dapat mengoptimalkan profit. Metode yang digunakan adalah menggunakan algoritma matematika Lerch-Grossmann dengan dibantu software 3DMine. Parameter yang digunakan adalah biaya operasional penambangan dan evaluasi nilai net present value yang dilakukan pada perhitungan aliran kas yang sederhana, dengan batasan profit yang dihasilkan sebelum pajak.
SESAR KONTROL DISTRIBUSI ALIRAN AIRTANAH DI GUNUNGKIDUL BAGIAN UTARA, YOGYAKARTA
Authors: Mahbub Rizqi Muhammad
Published: February 2019

Daerah penelitian berada di utara dari Kota Wonosari Kabupaten Gunungkidul, tepatnya di Desa Mertelu dan Desa Sambirejo. Secara geologis tersusun atas batupasir Formasi Kebobutak, Batupasir tufan Formasi Semilir, Breksi Formasi Nglanggran, Batupasor Tufan Formasi Sambipitu, Batupasir Formasi Oyo dan batugamping Formasi Wonosari. Secara tektonik, daerah ini diduga mengalami deformai kuat berdasarkan Peta Geologi Lembar Surakarta-Giritontro skala 1:100.000 (Surono, dkk, 1992). Struktur geologi yang berkembang sesar normal mengiri berarah timurlaut-baratdaya dan berarah baratlaut-tenggara. Struktur geologi yang berasosiasi dengan rekahan diduga sebagai jalur airtanah mengalir. Secara hidrogeologi regional daerah penelitian merupakan daerah zona airtanah langka, namun secara data bor masih memiliki lapisan akuifer yang cukup tebal berkisar 3 meter hingga 6 meter dari masing-masing lokasi. Setelah dilakukan pumping test, dua lokasi sumur uji ini baik dalam ukuran debit 1,2-1,8. Beberapa lapisan batupasir Formasi Kebobutak dan batupasir Semilir menjadi akuifer. Kemudian lapisan batugamping pasiran (packstone) juga sebagai akuifer. Selain melihat jenis litologi, juga melihat faktor penyebab lain mengenai distribusi airtanah oleh struktur geologi. Metode yang digunakan adalah observasi lapangan, 2 data bor, analisis kelurusan dari DEM, dan 2 sumur uji pompa. Perbedaan litologi diantara 2 data sumur bor menjelaskan stratigrafi di daerah penelitian. Pola kelurusan dari analisis citra menghasilkan pola baratlaut - tenggara dan timurlaut-baratdaya. Dua pola ini reaktivasi sesar mendatar menjadi sesar normal mengiri (Sudarno, 2009). Pola aliran airtanah mengarah ke zona sesar. Faktor yang mempengaruhi distribusi airtanah, selain litologi adalah sesar dan lipatan yang berasosiasi dengan rekahan. Rekahan-rekahan ini kemudian terhubung sehingga terbentuk porositas sekunder dan permeabilitas. Tipe akuifer di daerah penelitian adalah akuifer terekahkan.
PREDIKSI KEDALAMAN BATUBARA MENGGUNAKAN TRIANGGULASI DAN KRIGING
Authors: Sutrisno Agung Dwi
Published: February 2019

Salah satu fokus dari Masterplan Percepatan dan Perluasan Pembangunan Ekonomi Indonesia (MP3EI) adalah pengembangan energi batubara. Sebelum batubara dieksploitasi dilakukan eksolorasi terlebih dahulu. Kegiatan eksplorasi meliputi kegiatan pemboran. Dalam pemboran detil penghematan dapat dilakukan apabila prediksi kedalaman batubara dapat diperkirakan dengan baik. Tujuan penelitian ini adalah untuk menguji keakuratan antara metode trianggulasi dengan metode kriging dalam memprediksi kedalaman lapisan batubara pada suatu lokasi menggunakan software surfer. Pendekatan penelitian ini menggunakan metode komparatif. Data lapisan batubara meliputi koordinat dan elevasi serta elevasi dan ketebalan batubara diplot bersamaan dengan peta topografi. Peta kontur batubara dibuat menggunakan metode trianggulasi dan kriging. Keduanya dikomparasikan. Analisis dilakukan dengan cara crosscheck dari kedua metode di atas dengan record data aktual. Nilai dengan selisih tekecil berarti tingkat akurasinya lebih baik. Hasilnya, metode kriging mempunyai selisih prediksi rata-rata 22,2 m, sedangkan metode trianggulasi mempunyai selisih prediksi 2,4 m. Dengan demikian, metode trianggulasi prediksinya lebih baik dibandingkan dengan metode kriging.
Migration and translocal learning
Authors: Zielińska Malgorzata Karolina
Published: February 2019

The paper analyses learning from the perspective of migration. It is based on a qualitative study of Polish first-generation migrants in Iceland. The theoretical framework adopted is translocal learning and learning from places – which joins the perspective of social learning with learning from the environment. The empirical material was used to construct eight categories showing translocal learning outcomes: practical skills, communicative competences, analytic competence, assimilation of values, selfconfidence, independence, living with uncertainty and mobility skills. The findings show that translocal learning has a critical potential of challenging the dominant ideology. Some of the learning outcomes help migrants in further migration Finally, I suggest a new concept for future research – translocal pedagogy.
Research on Quantitative Investment Strategies Based on Deep Learning
Authors: Fang Yujie , Chen Juan , Xue Zhengxuan
Published: February 2019

This paper takes 50 ETF options in the options market with high transaction complexity as the research goal. The Random Forest (RF) model, the Long Short-Term Memory network (LSTM) model, and the Support Vector Regression (SVR) model are used to predict 50 ETF price. Firstly, the original quantitative investment strategy is taken as the research object, and the 15 min trading frequency, which is more in line with the actual trading situation, is used, and then the Delta hedging concept of the options is introduced to control the risk of the quantitative investment strategy, to achieve the 15 min hedging strategy. Secondly, the final transaction price, buy price, highest price, lowest price, volume, historical volatility, and the implied volatility of the time segment marked with 50 ETF are the seven key factors affecting the price of 50 ETF. Then, two different types of LSTM-SVR models, LSTM-SVR I and LSTM-SVR II, are used to predict the final transaction price of the 50 ETF in the next time segment. In LSTM-SVR I model, the output of LSTM and seven key factors are combined as the input of SVR model. In LSTM-SVR II model, the hidden state vectors of LSTM and seven key factors are combined as the inputs of the SVR model. The results of the two LSTM-SVR models are compared with each other, and the better one is applied to the trading strategy. Finally, the benefit of the deep learning-based quantitative investment strategy, the resilience, and the maximum drawdown are used as indicators to judge the pros and cons of the research results. The accuracy and deviations of the LSTM-SVR prediction models are compared with those of the LSTM model and those of the RF model. The experimental results show that the quantitative investment strategy based on deep learning has higher returns than the traditional quantitative investment strategy, the yield curve is more stable, and the anti-fall performance is better.
KISS1 Suppresses Apoptosis and Stimulates the Synthesis of E2 in Porcine Ovarian Granulosa Cells
Authors: Xin Xiaoping , Li Zhonghui , Zhong Yuyi , Li Qingqing , Wang Jiaying , Zhang Hao , Yuan Xiaolong , Li Jiaqi , Zhang Zhe
Published: February 2019

Previous studies have strongly recommended that KISS-1 metastasis suppressor (KISS1) plays an essential gatekeeper of the initiation of reproductive maturation in mammals. However, KISS1 has been recently reported to highly express in ovarian granulosa cells (GCs). But the biological functionalities of KISS1 on cell apoptosis, cell cycle, and synthesis of estradiol-17β (E2) have not been explored in GCs. In this study, using porcine GCs as a cellular model, the overexpression plasmid of KISS1 was built to explore the biological effects of KISS1 on the PI3K signaling pathway, estrogen signaling pathway, cell apoptosis, cell cycle, and E2 secretion. We found that mRNA of KISS1 highly expressed in the ovary and significantly increased from immature to mature follicles in gilts. Overexpression of KISS1 could significantly increase the mRNA expression of PIK3CG, PIK3C1, and PDK1, and significantly decreased the mRNA levels of FOXO3, TSC2, and BAD of PI3K signaling pathway. Furthermore, results of the flow cytometry showed that overexpression of KISS1 significantly inhibited the apoptosis of GCs and decreased the percentage of GCs at G0/G1 phase of the cell cycle. Additionally, overexpression of KISS1 could increase the mRNA levels of Star, CYP17, 3B-HSD, 17B-HSD of estrogen synthesis signaling pathway, significantly increase the concentration of E2 in the supernatant of the cultured GCs, and up-regulate the mRNA expression levels of ESR1 and ESR2. These results suggested that KISS1 might suppress cell apoptosis through activating the PI3K signaling pathway and stimulate synthesis of E2 via boosting the estrogen synthesis signaling pathway. This study would be of great interests for exploring the biological functionalities of KISS1 in the folliculogenesis and sex steroid production of the ovaries in mammals.
Canine CD117-Specific Antibodies with Diverse Binding Properties Isolated from a Phage Display Library Using Cell-Based Biopanning
Authors: Alfaleh Mohamed A. , Arora Neetika , Yeh Michael , de Bakker Christopher J. , Howard Christopher B. , Macpherson Philip , Allavena Rachel E. , Chen Xiaoli , Harkness Linda , Mahler Stephen M. , Jones Martina L.
Published: February 2019

CD117 (c-Kit) is a tyrosine kinase receptor that is overexpressed in multiple dog tumors. There is 100% homology between the juxtamembrane domain of human and canine CD117, and many cancer-causing mutations occur in this region in both species. Thus, CD117 is an important target for cancer treatment in dogs and for comparative oncology studies. Currently, there is no monoclonal antibody (mAb) specifically designed to target the exposed region of canine CD117, although there exist some with species cross-reactivity. We panned a naïve phage display library to isolate antibodies against recombinant CD117 on whole cells. Several mAbs were isolated and were shown to bind recombinant canine CD117 at low- to sub-nanomolar affinity. Additionally, binding to native canine CD117 was confirmed by immunohistochemistry and by flow cytometry. Competitive binding assays also identified mAbs that competed with the CD117 receptor-specific ligand, the stem cell factor (SCF). These results show the ability of our cell-based biopanning strategy to isolate a panel of antibodies that have varied characteristics when used in different binding assays. These in vitro/ex vivo assessments suggest that some of the isolated mAbs might be promising candidates for targeting overexpressed CD117 in canine cancers for different useful applications.
Synthesis of Poly(methyl methacrylate) Grafted Multiwalled Carbon Nanotubes via a Combination of RAFT and Alkyne-Azide Click Reaction
Authors: Ma Wenzhong , Zhao Yuchen , Zhu Zhiwei , Guo Lingxiang , Cao Zheng , Xia Yanping , Yang Haicun , Gong Fanghong , Zhong Jing
Published: February 2019

An efficient synthesis route was developed for the preparation of multiwalled carbon nanotube (MWCNT) nanohybrids using azide-terminated poly(methyl methacrylate) (PMMA) via a combination of reversible addition fragmentation chain transfer (RAFT) and the click reaction. A novel azido-functionalized chain transfer agent (DMP-N3) was prepared and subsequently employed to mediate the RAFT polymerizations of methyl methacrylate (MMA). The RAFT polymerizations exhibited first-order kinetics and a linear molecular weight dependence with the conversion. The kinetic results show that the grafting percentage of PMMA on the MWCNTs surface grows along with the increase of the reaction time. Even at 50 °C, the grafting rate of azide-terminated PMMA is comparatively fast in the course of the click reaction, with the alkyne groups adhered to MWCNTs in less than 24 h. The successful functionalization of PMMA onto MWCNT was proved by FTIR, while TGA was employed to calculate the grafting degree of PMMA chains (the highest GP = 21.9%). Compared with the pristine MWCNTs, a thicker diameter of the MWCNTs-g-PMMA was observed by TEM, which confirmed the grafted PMMA chain to the surface of nanotubes. Therefore, the MWCNTs-g-PMMA could be dispersed and stably suspended in water.
Fatigue Life of RC Bridge Decks Affected by Non-Uniformly Dispersed Stagnant Water
Authors: Fathalla Eissa , Tanaka Yasushi , Maekawa Koichi
Published: February 2019

Stagnant water on reinforced concrete (RC) decks reduces their life significantly compared to the case of dry states. Fully submerged states have been investigated as the most severe case, which is however rarely experienced in reality. Currently, it is possible to simulate concrete–water interactions for lifetime prediction of RC decks. In this study, fatigue lifetime is systematically computed for various locations of stagnant water at the upper layer of RC decks. It is found that the patterns of wet and dry areas have a great influence on the remaining fatigue life even though the same magnitude of cracking develops. Then, a hazard map for the wetting locations with regard to the remaining fatigue life is presented based on the systematically arranged simulation. Finally, a nonlinear correlation is introduced for fatigue life prediction based upon site inspected wetting locations, which can be detected by non-destructive testing technology.
A Stochastic Deterioration Process Based Approach for Micro Switches Remaining Useful Life Estimation
Authors: Zhang Bangcheng , Shao Yubo , Chang Zhenchen , Sun Zhongbo , Sui Yuankun
Published: February 2019

Real-time prediction of remaining useful life (RUL) is one of the most essential works in prognostics and health management (PHM) of the micro-switches. In this paper, a linear degradation model based on an inverse Kalman filter to imitate the stochastic deterioration process is proposed. First, Bayesian posterior estimation and expectation maximization (EM) algorithm are used to estimate the stochastic parameters. Second, an inverse Kalman filter is delivered to solve the errors in the initial parameters. In order to improve the accuracy of estimating nonlinear data, the strong tracking filtering (STF) method is used on the basis of Bayesian updating Third, the effectiveness of the proposed approach is validated on an experimental data relating to micro-switches for the rail vehicle. Additionally, it proposes another two methods for comparison to illustrate the effectiveness of the method with an inverse Kalman filter in this paper. In conclusion, a linear degradation model based on an inverse Kalman filter shall deal with errors in RUL estimation of the micro-switches excellently.
Green Gas for a Grid as An Eco-Friendly Alternative Insulation Gas to SF6: From the Perspective of Partial Discharge Under AC
Authors: Wang Guoming , Kim Woo-Hyun , Kil Gyung-Suk , Kim Sung-Wook , Jung Jae-Ryong
Published: February 2019

This paper deals with the characteristics of partial discharge (PD) in green gas for a grid (g3), which is thought to be a promising eco-friendly alternative to substitute SF6 used in electrical power facilities and to reduce the greenhouse effect. g3 gas with 4% NOVECTM 4710/96% CO2 was used and electrode systems including a protrusion on conductor (POC) and a protrusion on enclosure (POE) were fabricated to simulate PD in a gas-insulated structure. PD characteristics in terms of partial discharge inception voltage (PDIV), pulse parameters in time and frequency, and the phase-resolved partial discharge (PRPD) pattern in SF6 and g3 were compared. From the results, the PDIVs of g3 were 76%–81% of that of SF6 in the POC and were 78%–84% of that of SF6 in the POE, depending on the gas pressure. Rising time, pulse width, and relative amplitude in the frequency domain of PD pulses in g3 gas were greater than those in SF6. In addition, the PRPD patterns indicated that both the average apparent charge and pulse count of PD in g3 were higher compared with those in SF6. The results from this paper are expected to provide fundamental material for the green manufacturing of gas-insulated power apparatus.
On the Relationship between Gravity Waves and Tropopause Height and Temperature over the Globe Revealed by COSMIC Radio Occultation Measurements
Authors: Yu Daocheng , Xu Xiaohua , Luo Jia , Li Juan
Published: February 2019

In this study, the relationship between gravity wave (GW) potential energy (Ep) and the tropopause height and temperature over the globe was investigated using COSMIC radio occultation (RO) dry temperature profiles during September 2006 to May 2013. The monthly means of GW Ep with a vertical resolution of 1 km and tropopause parameters were calculated for each 5° × 5° longitude-latitude grid. The correlation coefficients between Ep values at different altitudes and the tropopause height and temperature were calculated accordingly in each grid. It was found that at middle and high latitudes, GW Ep over the altitude range from lapse rate tropopause (LRT) to several km above had a significantly positive/negative correlation with LRT height (LRT-H)/ LRT temperature (LRT-T) and the peak correlation coefficients were determined over the altitudes of 10–14 km with distinct zonal distribution characteristics. While in the tropics, the distributions of the statistically significant correlation coefficients between GW Ep and LRT/cold point tropopause (CPT) parameters were dispersive and the peak correlation were are calculated over the altitudes of 14–38 km. At middle and high latitudes, the temporal variations of the monthly means and the monthly anomalies of the LRT parameters and GW Ep over the altitude of 13 km showed that LRT-H/LRT-T increases/decreases with the increase of Ep, which indicates that LRT was lifted and became cooler when GWs propagated from the troposphere to the stratosphere. In the tropical regions, statistically significant positive/negative correlations exist between GW Ep over the altitude of 17–19 km and LRT-H/LRT-T where deep convections occur and on the other hand, strong correlations exist between convections and the tropopause parameters in most seasons, which indicates that low and cold tropopause appears in deep convection regions. Thus, in the tropics, both deep convections and GWs excited accordingly have impacts on the tropopause structure.