bluuebunny/crossref_metadata_2025 huggingface dataset:
Karakterisasi Proses Gasifikasi Sampah Organik dengan Variasi Jenis Bahan
Authors: Styana Ucik Ika Fenti , Indrawati Rosiana , Cahyono Muhammad Sigit
Published: October 2019

One of the abundant energy source in Indonesia is organic waste in the form of leafs and branches which is widely avalilable in homeyard. It can be utilized as alternative energy source by gasification process. The objective of the study was to know the influence of raw material and AFR to the characteristic of organic waste gasification process. The raw material used were leafs and branches of melinjo (gnetum gnemon) which obtained from homeyard of inhabitant in Sidomoyo village, Godean sub-district, Sleman Regency, Indonesia. Before being gasified, it was prepared for proximate analysis in laboratorium. The gasification begins by feeding the raw material to the reactor with variation of 100% leaf, 100% branch, and 50%-50% leaf and branch. The gasification process was occured in reactor for one hour, and syn gas which produced has been analized to know the composition of it. Result shows that raw material have influenced the characteristic of gasification process. The highest heating rate was occured for gasification process of 100% leaf and AFR 0.5, which it gas has burned after 25 minuted process in oxidation temperature of 650 0C, reduction temperature of 350 0C, and pyrolysis temperature of 240 0C.
Ervas daninha em pastagens: uma abordagem fitossociológica nas áreas do Ceará
Authors: Silva Josefa Maria Francieli da , Sarmento Hercules Gustavo Santos , Araújo Hellen Thayse Nascimento , Oliveira Alexandre Bosco de , Oliveira Lamartine Soares Cardoso de
Published: October 2019

The aim of this study was to study the phytosociology of weed species in areas of pasture cultivated with Brachiaria decumbens and Cynodon sp. (Tifton 85), in Ceará State, Brazil. The square inventory methodology was used in order to assess the weed community. Weed samples were quantified and classified by family, genus and species, using books and classification keys. The classification and quantification data of species allowed to calculate the following phytosociological variables: frequency (F), relative frequency (Fr), density (D), relative density (Dr), absolute dominance (DoA), relative dominance (DoR), importance value index (IVI), and similarity index (IS). The Amaranthaceae family was the one with the greatest intensity of species in both areas, represented mainly by Alternanthera tenera colla and Amaranthus viridis. In the area cultivated with B. decumbens, Cyperus rotundus presented higher results for frequency, density and abundance. In the Tifton 85 area, Nicandra physalodes presented higher values of density and abundance. The similarity of weed populations in pasture areas was 42.11%, with four species common to both areas.
Análise multivariada para expressão de resultados de potencial fisiológico de sementes de arroz
Authors: Costa Denis Santiago , Novembre Ana Dionisia Da Luz Coelho
Published: October 2019

Nessa pesquisa foi avaliado o potencial de uso e aplicação da análise multivariada, para apresentação e interpretação dos resultados de testes utilizados para estimar o vigor, usando a espécie Oryza sativa como modelo de estudo. Quatro lotes de sementes de arroz foram avaliados inicialmente em laboratório quanto à germinação e ao vigor (teste de frio, envelhecimento acelerado e condutividade elétrica) e em campo/casa de vegetação quanto à emergência de plântulas e ao índice de velocidade. Os dados obtidos foram submetidos à análise estatística univariada e os testes de vigor à multivariada. Ainda que os testes laboratoriais não tenham apontado diferença de qualidade, observou-se o efeito do potencial fisiológico nos ensaios não laboratoriais, indicando haver diferenças de vigor entre os lotes. A criação de dois novos componentes, provenientes da análise de componentes principais, gerou alta representatividade da variância (90,87%) e, com destaque, para o lote L3 nos dois componentes. A análise multivariada, por meio da análise de componentes principais, é eficiente na criação de novos componentes que representam os resultados de testes de vigor com alta coerência e retenção da variância, sendo uma ferramenta chave na expressão de dados e interpretação de resultados em tecnologia de sementes.
Ferrara, Pisa, Ravenna: le «città soavi»
Authors: Montagnani Cristina
Published: October 2019

Setting out from a poem that will be published as part of Elettra, this paper deals with the close relationship that exists among d’Annunzio’s Laudi since their first appearance in 1899. As a case study, I will focus on Ferrara, Pisa, Ravenna, later published as Città del silenzio.
L'eredità di Ovidio in Giovanni Pascoli e Gabriele d'Annunzio
Authors: Belponer Maria
Published: October 2019

The contribution analyses the influence of the Ovidian work, especially the Metamorphoses, on Giovanni Pascoli and Gabriele d’Annunzio, emphasising how the ancient poet is understood in different ways. In the diversity of interpretation and reformulation of the myths of the Latin poet, both Pascoli and d’Annunzio come to the creation of narratives and figures that reflect central aspects of their poetic world, often far from the original inspiration.
Contro i nuovi Barbari: d’Annunzio, Spengler, l’ombra di Cesare
Authors: Sgroi Alfredo
Published: October 2019

In the European culture between the nineteenth and twentieth centuries there is a denunciation of the decline of Western civilization, with the expectation of a ransom. The new Caesarism is the dream of many intellectuals. D'Annunzio and Spengler are protagonists in this cultural phase. The Italian writer anticipates the German philosopher. In fact, works like Le vergini delle rocce confirm the many convergences with Der untergand der Abendland, published in 1918. In this essay we analyse the analogies between the Weltanschauung of the two authors.
Penerapan K-Nearest Neighbor dalam Pendeteksian Abcessus
Authors: Ramadhan Puji Sari
Published: October 2019

Abcessus is a collection of neutrophils that do not function anymore and have accumulated in tissue cavities infected with bacteria or parasites. This disease will cause swelling in the part of the skin tissue that contains pus and blood, this is due to the spread of skin tissue with staphylococcus aureus bacteria. The spread of infections carried out by bacteria will result in the release of toxins that cause inflammation and increase blood flow in the infected place. The high circulation of the disease among the community requires a concept of knowledge and information which can later be disseminated to the community so that it can reduce the risk of spreading this disease and can be done as soon as possible early treatment of people suffering from Abcessus. The concept of knowledge that will be formed is by transferring all forms of information and knowledge about Abcessus into the diagnosing application by applying the Expert System science that uses K-Nearest Neighbor analysis, later the method can produce the probability value or probability of diagnosing Abcessus for the symptoms that are felt clinically, of course, the knowledge and probability value of Abcessus will first be determined by an expert or expert in identifying the Abcessus. With the construction of diagnostic applications this can be used as a source to be used by the wider community in dealing with problems regarding diagnosis and knowledge of Abcessus, besides that it can also be used in the analysis of diagnostic conclusions by health or medical officers
Deteksi Kehadiran Mahasiswa Secara Realtime Menggunakan Webcam dengan metode Viola Jones
Authors: Hariani Rina , Fadillah Nurul
Published: October 2019

Pelaksanaan pengisian daftar kehadiran secara manual dapat menjadi penghambat bagi  universitas untuk  memantau kedisiplinan mahasiswa. Sistem kehadiran manual dapat diganti dengan sistem kehadiran terkomputerisasi yang mendasarkan proses identifikasi mahasiswa. Absensi adalah suatu pendataan kehadiran, bagian dari pelaporan aktivitas suatu institusi, atau komponen institusi itu sendiri yang berisi data-data kehadiran yang disusun dan diatur sedemikian rupa sehingga mudah untuk dicari dan dipergunakan apabila sewaktu-waktu diperlukan oleh pihak yang berkepentingan.Aplikasi komputer yang dikembangkan pada sistem absensi adalah aplikasi komputer yang dapat mengenali wajah seseorang hanya dengan menggunakan webcam.Pengenalan wajah dalam penelitian ini menggunakan sebuah webcam untuk menangkap suatu objek wajah mahasiswa.Metode yang digunakan dalam penelitian ini adalah metode Viola Jones.Pada sistem ini, digunakan pengujian dengan ekspresi wajah normal. Tingkat keberhasilan pengenalan dengan ekspresi wajah normal menggunakan metode Viola Jones sebesar 93,7%. Penggunaan metode ini sangat cocok pada system absensi secara relatime  kerena kecepatan pemrosesan 15 kali lebih cepat daripada detektor Rowley Baluja-Kanade dan kurang lebih 600 kali lebih cepat daripada detektor Schneiderman-Kanade.
Analisis Deteksi Emosi Manusia dari Suara Percakapan Menggunakan Matlab dengan Metode KNN
Authors: Anggraini Nur Ariska , Fadillah Nurul
Published: October 2019

Emosi manusia adalah suatu perasaan atau gejolak jiwa yang muncul di dalam diri seseorang sebagai akibat dari adanya rangsangan, baik dari dalam diri sendiri maupun dari luar. kata Emosi banyak diartikan sebagai bentuk amarah, namun sebenarnya kata emosi mewakili berbagai bentuk perasaan manusia. Emosi seseorang dalam keadaan tenang, marah, sedih atau senang dapat dideteksi melalui sinyal bicaranya. Pengembangan sistem pengenalan suara masih berjalan untuk sementara waktu ini. Sehingga pada penelitian ini dianalisis emose seseorang melalui sinyal bicaranya. Pada penelitian ini menjelaskan tentang emosi manusia yang telihat pada grafik bahwa yang menandakan tinggi atau rendahnya nada suara yang diiputkan. Pada pengujian sistem ini diinputkan suara dengan nada tinggi / emosi maka terlihat grafik semakin tinggi dan dihasilkan gelombang suara yang tinggi pula.
Pengaruh Penggunaan Synonym Recognition dan Spelling Correction pada Hasil Aplikasi Penilaian Esai dengan Metode Longest Common Subsequence dan Cosine Similarity
Authors: Cholis Mohammad Nur , Yudaningtyas Erni , Aswin Muhammad
Published: October 2019

aplikasi penilaian esai adalah harus menilai kemiripan makna dari jawaban yan diketik oleh peserta ujian dengan kunci jawaban yang digunakan sebagai patokan kebenaran jawaban. Dimana jawaban esai adalah data bahasa alami manusia yang bisa memiliki sinonim kata dan ada kemungkinan kesalahan input yang disebabkan karena kesalahan pengetikan (kesalahan ejaan). Untuk itu perlu ada sebuah penelitian yang dapat mengukur seberapa berpengaruhnya penggunan synonim recognition dan spelling correction pada hasil aplikasi penilaian esai. Pada penelitian ini data yang digunakan untuk melakukan pengujian adalah data ujian pada mata pelajaran bahasa indonesia, seni budaya dan IPA dengan jumlah soal masing-masing ujian adalah 5 soal yang masing-masing ujian tersebut diikuti oleh 24 pelajar. Sehingga dari setiap ujian akan terdapat sebanyak 120 jawaban. Hasil pengujian menunjukkan bahwa penggunaan synonym recognition dan spelling correction pada hasil aplikasi penilaian esai dapat meningkatkan akurasi dan memperkecil nilai root mean square error (rmse).
Evaluasi Terhadap Penerimaan SIMLITABMAS Universitas Riau Menggunakan Model TAM
Authors: Sukamto Sukamto , Sastria Gita , Pujasartika Resti
Published: October 2019

This research aims to describe the acceptance of SIMLITABMAS (Information System of Research and Community Service) with several variables, such as Usefulness, Ease of Use and Acceptance of SIMLITABMAS. Data were collected through questionnaire using Likert scale to 101 SIMLITABMAS’s users. Data analysis is done by validity and reliability test. In classic assumption test, normality, multicolinearity and heterokedastisitas. moreover the result test there are multiple correlation test,  coefficient of determination (R2) and f test. The result of this research shows that there are a correlation between the Usefulness and Ease of Acceptance with a strong closeness (0,558). Futhermore Usefulness and Ease have a significant effect on the acceptance of SIMLITABMAS amounted to 31.1%.
Sistem Informasi Penilaian Pemberitaan Hoax dengan Metode Perbandingan Dan Algoritma AHP
Authors: Ginting Farid Syaumi Rizki , Akram Rizalul
Published: October 2019

The use of social media in Indonesia is currently developing tremendously. Even so, the development of information technology life in the real world is not in accordance with life in cyberspace.Social media is now delivering news on false information (fraud), provocation, slander, intolerance and anti-Pancasila attitudes. Technological advances in the era of globalization made information so quickly sent wide. So from that information system is intended to educate the public, in order to be able to distinguish between truly deceptive news. The method used in this information system uses the AHP (Analytical Hierarchy Process) method, the AHP (Analytical Hierarchy Process) method which is used as a representation of a complex problem in a multi-level structure where the first level is a goal, which is discussed by factor level, criteria , sub criteria, and so on down to the last level of the alternative. So from this information system we can see which news is true and which news is lying, by looking at the results of the AHP (Analytical Hierarchy Process) process which graphs the results.ABSTRAKPemanfaatan media sosial di Indonesia saat ini berkembang luar biasa. Meski begitu, perkembangan teknologi informasi kehidupan di dunia nyata tidak pararel dengan kehidupan di dunia maya. Media sosial kini dipenuhi berita informasi palsu (hoax), provokasi, fitnah, sikap intoleran dan anti Pancasila. Kemajuan teknologi di era globalisasi membuat informasi begitu cepat beredar luas.Maka dari itu sistem informasi ini bertujuan untuk mengedukasi masyarakat, agar dapat membedakan berita yang benar maupun yang hoax.Metode yang digunakan dalam sistem informasi ini adalah menggunakan metode AHP (Analytical Hierarchy Process), metode AHP (Analytical Hierarchy Process) digunakan sebagai suatu representasi dari sebuah permasalahan yang kompleks dalam suatu struktur multi level dimana level pertama adalah tujuan, yang diikuti level faktor, kriteria, sub kriteria, dan seterusnya ke bawah hingga level terakhir dari alternatif.Jadi dari sistem informasi ini kita dapat melihat berita mana yang benar dan berita mana yang hoax, dengan melihat hasil dari proses AHP (Analytical Hierarchy Process ) yang berbentuk grafik hasil.
Perbandingan Metode Robert dan Metode Prewitt untuk Deteksi Tepi pada Citra Tanda Tangan
Authors: Kuswandi Eko Rahmad , Fadillah Nurul
Published: October 2019

Sistem biometrik merupakan salah satu dari cabang teknologi yang berkembang sangat pesat pada era teknologi sekarang ini. Salah satu penerapan sistem biometrik yang mudah ditemukan dalam kehidupan sehari-hari yaitu tanda tangan. Setiap orang pasti memiliki tanda tangan yang berbeda-beda, karena tanda tangan merupakan ciri seseorang yang membedakannya dengan ciri orang lain. Dalam penelitian ini akan dilihat perbedaan antara metode robbert dan metode prewitt dalam mendeteksi tepi pada tanda tangan. Proses deteksi tepi pada metode robbert dan prewitt didapatkan dengan menjumlahkan nilai absolut dari konvolusi differensial pada arah horizontal dengan konvolusi differensial pada arah vertikal. Maka dari hasil tersebut didapatkan bahwa metode prewitt memiliki tingkat akurasinya lebih tinggi dibandingkan dengan metode robbert.
PENERAPAN MODEL PEMBELAJARAN RECIPROCAL TEACHING TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA SISWA
Authors: Budianti Eni Tri , Mustika Helma
Published: October 2019

This research is motivated by the low understanding of the concept by students of science class XI SMA Negeri 1 Rengat Barat. The purpose of this study is to determine the ability to understand the mathematical concepts of students by class XI IPA SMA Negeri 1 Rengat Barat.This type of research is quasi exsperiment with randomyzed subject posstest only control group design. The analysis technique in this test is t-test. Based on the hypothesis test calculation its shows the significant value of the sample class is smaller than α that is 0.006 <0.05. This means that it can be concluded that the ability to understand the concept of mathematics using the reciprocal teaching learning model is better than the ability to understand the concept of mathematics by using conventional learning model.
PENINGKATAN AKTIVITAS BELAJAR MAHASISWA PADA MATA KULIAH EVALUASI HASIL BELAJAR MATEMATIKA MELALUI PENERAPAN MODEL PEMBELAJARAN BERBASIS PROYEK
Authors: Imelda Imelda
Published: October 2019

This research is a classroom action research. The objectives of this research are: (1) to describe student's learning activity in project-based learning; (2) to describe the improvement of student learning activity of mathematics education program of St. Thomas University through the application of project-based learning model; (3) to analyze student project tasks in project-based learning. The results of this study indicate that student learning activity in cycle 1 is 41.66% active students in visual activities, 25% active students in oral activities, 47.22% active students in writing activities, 13.89% active students in mental activities. Students activity in cycle 2 is 75% active students in visual activities, 63.89% active students in oral activities, 75% active students in writing activities, 52.78% active students in mental activities. The test validity test consisted of 18 tests tested in 18 schools with a total of 90 questions in which each test consisted of 4 questions, 5 questions and 6 questions. Validity results obtained 69 problems (76.67%) valid and as many as 21 problems (23.33%) is invalid. The results of the test reliability obtained 12 reliable tests with high reliability category as many as 5 tests (27.78%) and medium relative category as many as 7 tests (38.89%) and there are 6 tests (33.33%) that are not reliable. The result of analysis of different test variables obtained 39 problem (43,33%) with bad category, 29 problem (32,22%) enough category, and 16 problem (17,78%) good category. The results of the analysis of the difficulty level of the test obtained that from 90 tested questions there are 42 easy questions, 45 problems medium and 3 difficult questions.
MENINGKATKAN HASIL BELAJAR MATEMATIKA PADA MATERI PERSEGI PANJANG DI KELAS III SD NEGERI 028226 BINJAI MELALUI MODEL QUANTUM TEACHING TAHUN PELAJARAN 2016/2017
Authors: Suharty Lilis
Published: October 2019

This study aims to find out how to improve learning outcomes Mathematics students class III SD Negeri 028226 can be increased by using learning model quantum teaching. This study is a classroom action research. The approach used in this study is a qualitative approach to the type of classroom action research. The subject of this research is the third grade students of SD Negeri 028226 Binjai with the number of respondents 25 students. Data from this study were collected through test results and observation results. Based on the results of the action obtained 87.5% who have completed learning. Thus in accordance with the established criteria that the model of quantum teaching can improve student learning outcomes in the Material rectangle students class III academic year 2016/2017
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MELALUI PEMBELAJARAN KOOPERATIF BERBASIS MULTIPLE INTELLIGENCE DI KELAS VIII SMP BUDISATRYA MEDAN
Authors: Suwanto Suwanto
Published: October 2019

The Problem in this research is lower capability of problem solving mathematical of students is the result of expository learning who did not considering multiple intelligences (multiple intelligence). The Purpose of this research was aimed to the improvement of mathematical problem solving capability and the interaction of KAM and learning factor toward the improvement problem solving capability. The type of this research is quasi-experiment research, subject of this research is VIII grade SMP Budisatrya Medan and sample selected by purposive sampling method. The subject of this research is divided  into 2 class, first class is given cooperative learning based on multiple intelligence and the second class that given regular learning or expository learning. To measure  the student’s capability  that use the instrument that has been validated by 8 expert and already tested that showed the results of reliability question (0,946) for KAM and (0,905) for problem solving capability test. Data analysis was performed with ANOVA two lanes  factorial. Based on the research results can be concluded that an increase in the ability of students' mathematical problem solving through cooperative learning based on multiple intelligence higher that regular learning and there is no interaction between prior knowledge of mathematics to increase the ability of solving problem mathematical.
TRUNCATED PLATONIC SOLID DAN TRUNCATED ICOSIDODECAHEDRON
Authors: Simanjuntak Maslina
Published: October 2019

The background of this paper is to attract society interest to know the beauty of mathematics that is represented by the diversity of mathematics geometry. Truncated Platonic Solid is one of those geometry which is expected to represent the beauty of mathematics. Truncated Platonic solid is a cut off Platonic Solid (not perfect). Platonic Solid is a geometry that was built by congruent polygon, all of the ribs have an equal lenght, also that same surface angle. Truncated Platonic Solid consist of cut off Tetrahedron, cut off Hexahedron, cutt of Dodecahedron, cut off Octahedron, and cutt off Icosahedron. Truncared  Icosidodecahedron is a cut off Icosidodecahedron
KEEFEKTIFAN PENDEKATAN KONSTRUKTIVISME TERHADAP KEMAMPUAN PENALARAN MATEMATIS MAHASISWA PADA MATA KULIAH ANALISIS REAL
Authors: Fitriani Fitriani , Siregar Yulia Anita
Published: October 2019

Abstract. This research was conducted at University of Muhammadiyah South Tapanuli in semester VI student of mathematics education program that follow Real Analytical course. This study aims to determine students' mathematical reasoning ability after using constructivism approach and also want to know the effectiveness of constructivism approach to mathematical reasoning ability, as well as expected to give benefit to lecturer of Real Analysis course lecturer. The method used to achieve the goal is by experimental method with pre-experimental design research design. This research produces: A very effective constructivism approach is used to teach real analysis courses. There is an increase in students' mathematical reasoning abilities after using constructivism approach.Keywords: Constructivism, Mathematical Reasoning, Real Analysis.
PENERAPAN METODE PROBLEM SOLVING DALAM MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH PADA MATA KULIAH ALJABAR DAN TRIGONOMETRI
Authors: Imelda Imelda
Published: October 2019

Abstract. This study is a classroom action research. The purpose of this research is (1) to describe the application of problem solving method in improving mathematics problem solving students of mathematics education program of Catholic University of Santo Thomas North Sumatera and (2) to describe the improvement of mathematics problem solving ability of mathematics education student in Algebra and Trigonometry. The result of this research shows that the result of problem solving test of mathematics cycle I is students who do not have problem solving ability as much as 3 people (30%), while students have math problem solving ability as much as 7 people (70%) and percentage of observation sheet lecturer activity amounted to 70.90%. Based on the result of math problem solving test in cycle 2, there were 1 (10%) students who did not have the ability to solve mathematics problem, while the students who have problem solving ability 9 students (90%) and lecturer activity percentage of 85.50% experienced an increase from cycle I of 6.5%. Based on the results of this acquisition then the group (classical) can be said that students have the ability to solve problems in Algebra and Trigonometry courses and increase problem-solving abilities by 20%. Keywords: problem solving method and problem solving ability.
MENINGKATKAN KEMAMPUAN PEMAHAMAN KONSEP SISWA DALAM MATERI SEGITIGA MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE THINK-PAIR-SHARE (TPS) BERBANTUAN AUTOGRAPH DI KELAS VII SMP SANTO ANTONIUS JAKARTA
Authors: Simanjuntak Maslina
Published: October 2019

Abstract. The purpose of this research is to improve the understanding of junior high school student class VII-2 of Santo Antonius Jakarta. The method used is class activity observation using think-pair-share (TPS) learning model with the help of autograph. The result shows a classical achievement on the first cycle with 86.7 % with average of 72.43, increase of students that reach the mastery learning achievement criteria of 26 students, increase in classical achievement of 86.67 %, average increase of 56.6 % and there's 19 students with medium increase of understanding, 11 students with high increase of understanding. Teacher's ability on executing the learning process on the first cycle is already categorized as good with 82.81, student observation result is also categorized as good eith 85.35. Keywords: Concept Undersranding, Think Pair Share, Autograph.
PERBEDAAN KEMAMPUAN PEMAHAMAN KONSEP MATEMATIK ANTARA SISWA YANG DIBERI PEMBELAJARAN KOOPERATIF TIPE THINK-TALK-WRITE DENGAN PEMBELAJARAN LANGSUNG
Authors: Ammy Putri Maisyarah , Batubara Ismail Hanif
Published: October 2019

Abstract. The purposes of this study were to investigate: (1) Differences in mathematics conceptual understanding ability among students who are given a learning cooperative type Think-Talk-Write model with students who were given direct learning model. (2) To describe the active activity of student during learning cooperative type Think-Talk-Write. (3) To describe the accomplishing of student answers in learning cooperative type Think-Talk-Write and direct learning. This was a semi-experimental study. The population was first grade students of SMP Muhammadiyah 1 Medan. Then randomly selected two classes of six grade. The experimental class ware given learning cooperative type Think-Talk-Write model and control classes were subjected to direct teaching model. The instruments consisted of: (1) Mathematics conceptual understanding test, and (2) Observation sheet. Data analysis was performed by analysis of covariance (ANACOVA). The results showed that (1) There are differences in mathematics conceptual understanding among students who are given a model of learning cooperative type Think-Talk-Write with students who were direct instruction model. This is evident from the results ANACOVA to Fhitung = 37,457 is greater Ftabel 4,01. Constants of regression equations to model problem-based learning that is 27,027 greater than the direct learning model is 26,454. (2) The activity levels of active student has met the ideal percentage of time set. (3) the completing of students answers that are taught by learning cooperative type Think-Talk-Write model are better than students whorm are taught by using direct instruction model.Keywords: Think-Talk-Write, Mathematics Conceptual Understanding
EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP HASIL BELAJAR MAHASISWA MATA KULIAH KALKULUS PEUBAH BANYAK
Authors: Wahyuni Sri
Published: October 2019

Abstract. Student activity will affect effectiveness for student learning outcomes. The effectiveness of learning consists of four indicators, namely the quality of instruction, the suitability appropriate level of instruction, incentive, and time. The purpose of this study is to: (1) Know how the effectiveness of student learning outcomes in variable calculus subjects after getting learning with discovery learning learning models. (2) Knowing whether there is an increase in student learning outcomes in many variable calculus subjects after getting learning with discovery learning learning models. The data analysis techniques are carried out from the data description test stage, then the prerequisite test is the normality and linearity test, then test the hypothesis. The steps in the study are as follows: (1) The researcher provides a stimulus for the sample class, namely the discovery learning model; (2) At the time of the learning process the partner lecturers see the activity, student learning; (3) Provide essay tests to see the level of success of students in learning; (4) Perform statistical tests to see the effectiveness of student learning outcomes using discovery learning learning models. The results of this study are that there is an effect on the effectiveness of mathematics learning using the discovery learning model of student learning outcomes in many variable calculus subjects, and there is an increase in student learning outcomes after learning with discovery learning models of many variable calculus subjects as much as 20.53.Keywords: Discovery Learning, Learning Outcomes, Calculus
PENINGKATAN KEMAMPUAN REPRESENTASI MATEMATIKA SISWA SMA TUNAS PELITA BINJAI MELALUI PEMBELAJARAN KOOPERATIF BERBASIS MULTIPLE INTELLIGENCE
Authors: Suwanto Suwanto , Wahyuni Fitry
Published: October 2019

Abstract. This research aims to determine the increase mathematical representation ability of students with cooperative learning base multiple intelligence. The lower mathematical representation ability and the difficulty in understanding trigonometry and also not facing multiple intelligences is the reason for this research. This research is a quasi experiment that compares two classes with different treatments, cooperative learning based on multiple intelligence and exspositori learning. Learning media in reasech is the RPP and LAS that is validated the expert team. The research instrument was also validated by an expert team and continued with validation, reliability, difficulty and differentiation tests. The analysis used is one-way ANOVA obtained by Fcount (4,342)> Ftable (0,05) (4,026) Explained, H0 is accepted, and it can be concluded that the increased ability of mathematical representation in multiple intelligence-based cooperative learning rather than increasing mathematical representation ability in ordinary learning.Keywords: mathematical representation, cooperative learning, multiple intelligence
PENINGKATAN KEMAMPUAN KONEKSI MATEMATIK DAN SIKAP POSITIF SISWA DENGAN PEMBELAJARAN KONTEKSTUAL PADA SISWA SMK PELAYARAN SAMUDERA INDONESIA MEDAN
Authors: Silalahi Taruli Marito
Published: October 2019

Abstract. This research aimed study to determine: 1) the increasing ability of mathematic connection and student’s positive thingking by using Contextual Learning are higher than students or usual learning approach. 2) there was the interaction between learning by students mathematic ability toward the increasing ability of mathematic connection and student’s positive thinking. 3) to determine how the answering process are made by the students in problem solving by using contextual learning and usual learning approach. This kind of research is the quasi experiment. The populations of this research are all of the students in X grade of Tehnical High School with acreditation B where is in Medan and the sample is chosen random sample. Where SMK Medan consist of X Nautic as experiment class and X Tehnical as control class am each consist of 34 students. The instrument used consist of: (1) test students initial mathematic ability, (2) test for mathematic connection and (3) scale for positive thingking, the subject up space. Data analysis are done by using ANAVA two ways. The result of this research shown that (1) the increasing ability in mathematic connection and student’s positive thinking by using Contextual Learning is higher than using student’s usual thinking approach, (2) there were no interaction between learning and student’s ability level to the increasing ability of mathematics and student’s positive thinking. The researcher suggests to use the Contextual Learning as the alternative way for teachers to increase the ability of mathematic connection and student’s positive thingking.Keyword: Contextual Learning, Mathematical Connection Ability, and Positive Student Attitudes
PENERAPAN MODEL PEMBELAJARAN THINK TALK WRITE (TTW) TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA
Authors: Ramadhani Fitri , Septiani Delima
Published: October 2019

Abstract. The purpose of this study was to determine the mathematical communication skills of class VII students at Muhammadiyah Middle School in Pasir Penyu. This type of research is a Quasi Experiment with the design of Randomized Subject Posttest-Only Control Group Design. The data analysis technique in this test uses the t-test. Based on the calculation of the hypothesis test shows the significant value of the sample class is 0.003 <0.05. Based on these results, H0 is rejected and Ha is accepted. So it can be concluded that the mathematical communication skills of students using the think talk write learning model is better than the mathematical communication skills of students using conventional learning models in class VII in the middle school Muhammadiyah Pasir Penyu.Keywords: Mathematical Communication, Think Talk Write
PERBEDAAN KEMAMPUAN PEMECAHAN MASALAH DENGAN PENDEKATAN INVESTIGASI DAN PENDEKATAN KONVENSIONAL PADA POKOK BAHASAN TEOREMA PHYTAGORAS DI KELAS VIII SMP NEGERI 9 PEMATANGSIANTAR
Authors: Siahaan Theresia Monika
Published: October 2019

Abstract. This study aims to determine whether there are differences in mathematical problem solving abilities of students who are taught through an investigative approach and with conventional approaches in class VIII SMP 9 of Pematangsiantar. This type of research is experimental research. The population in this study were all eighth grade students of SMP 9 of Pematangsiantar as many as 8 classes. The problem solving abilities of students taught with an investigative approach to the average pretest of 57.73 and post-test of 85.42, the level of change in problem solving abilities was 27.69. Higher than the problem solving abilities of students who are taught with conventional learning the average pretest is 56.67 and posttest is 72.67. Hypothesis testing, from the calculation of student pretest data obtained at dk = 64 and the real level α = 0.05 and 𝑡(1−12∝)=𝑡0,975 obtained ttable = 1.669 and tcount = 1.172. Because tcount < ttable = (1.172 <1.669) it can be concluded that the initial ability of students is the same. While based on the calculation of student posttest data obtained at dk = 64 and the real level α = 0.05 obtained ttable = 1.669 and t count = 4.212. Because tcount> ttable (4.212 > 1.669) then Ho is rejected and Ha is accepted. Then it was concluded that there were significant differences between problem solving abilities taught by an investigative approach and conventional approaches.Keywords: Problem Solving Ability, Investigative Approach, Conventional Approach.
PENGARUH MODEL PEMBELAJARAN TRADE A PROBLEM DENGAN PEMBERIAN REWARD TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VII SMP N.1 GUNUNG MALELA
Authors: Sinaga Christa Voni Roulina
Published: October 2019

Abstract. The purpose of this study was to determine the effect of the trade a problem learning model by rewarding students' mathematical communication skills. This type of research is quasi-experimental research by determining one class of research samples taken randomly as the experimental class. In this study the method of data retrieval is carried out by applying to an experimental class a treatment condition. The population in this study were all VII grade students of SMP N 1 Gunung Malelala. The results show a strong relationship between the Trade A Problem learning model and reward for students' communication skills. Based on the results of the calculation of the regression equation the equation 𝑌̂=27,87+0,64𝑋 is obtained. In this equation the regression direction coefficient (b) = 0.64 is positive, which means that the two variables have a positive linear relationship.Keywords: trade a problem, mathematical communication skills.
Presentando el dolor de los demás. Trabajando la empatía a través del Arte de Acción TITLE: Presenting the pain of others. Working empathy trought action art
Authors: Cano Martínez María Jesús
Published: October 2019

Con frecuencia nos encontramos en el Arte Contemporáneo, y concretamente en el Arte de acción, obras que versan sobre el dolor y el sufrimiento, de las cuales, una gran proporción, presentando el dolor ajeno. Es por ello que nos cuestionamos hasta que punto podemos poner en la tarima el dolor de los demás sin meternos en su piel. La empatía habría de ser contemplada en la realización de ciertas obras artísticas. Y a su vez, a través del Arte, y concretamente, desde el Arte de acción y en conexión con actividades de psicodrama, podemos favorecer la empatía, como elemento favorecedor de nuestras relaciones interpersonales y de nuestra interpretación de la realidad.ABSTRACTWe often find ourselves in Contemporary Art, and, specifically in Action Art, works that deal with pain and suffering, of which a large proportion present the pain of others. That is why we question to what extent we can put on the platform the pain of others without getting into their skin. Empathy should be considered in the realization of certain artistic works. And in turn, through Art, and concretely, from Action Art and in connection with psychodrama activities, we can promote empathy as a favoring element of our interpersonal relationships and our interpretation of reality.
Türkiye’de Kiraz Üretiminin Yapısal Analizi
Authors: ÇELİK Yusuf , SARIALTIN Hatice Kübra
Published: October 2019

Bu çalışmada, Dünya’da ve Türkiye’de kiraz üretiminin

mevcut durumu incelenmiş ve Türkiye’de kiraz sektörünün SWOT analizi

yapılmıştır. Araştırmanın temel materyalini ilgili istatistikler ve yapılmış

olan bilimsel çalışmalar oluşturmuştur. 2017 yılı FAO verilerine göre Dünya’da

yaklaşık 416.445 hektar alanda kiraz üretimi yapılmakta ve 85.401 hektar alan

ve 627.132 tonluk üretim ile Türkiye dünyada kiraz üretiminde ilk sırada yer

almaktadır. Üretim bakımından ilk sırada olmasına rağmen pazarlama stratejilerinin

etkin ve yeterli olmamasından dolayı kiraz ihracatında Türkiye, Şili ve ABD’den

sonra üçüncü sırada yer almaktadır. Türkiye’nin ağırlıklı olarak kiraz ihracatı

yaptığı ülkeler, Avrupa Birliği ülkeleri (Başta Almanya, Bulgaristan ve

Hollanda olmak üzere), Rusya ve Irak’tır. Dünya kiraz ithalatında ilk sırada

%21 oranıyla Çin, ikinci sırada ise %19’luk oranı ile Rusya gelmektedir.

Türkiye’de ağaç başına kiraz verimi 2017 yılında 29 kg olarak gerçekleşmiştir.

Türkiye’de 2018 yılı verilerine göre kiraz üretimi bakımından, Konya ili ilk

sırada yer almıştır. Konya ilinde 70.987 da alanda, 68.376 ton kiraz üretimi

yapılmış olup, bu miktar toplam kiraz üretiminin %10,87’sini oluşturmaktadır.

Üretim bakımından ikinci sırada İzmir ili gelmektedir. Türkiye’de kiraz

sektörünün yapılan SWOT analizinde, Türkiye’nin sahip olduğu ekolojik çeşitlilik

ve uygunluk avantaj oluştururken, işletmelerin yapısal sorunları ve üretici

örgütlenmesinin yetersiz olması dezavantaj oluşturmaktadır. Diğer taraftan

Türkiye’nin Avrupa Birliği ve Rusya gibi ithalatı yüksek ülkelere yakın ve iş birliği

içinde olması fırsat oluştururken, yaşanan iklim değişikliğine bağlı üretim ve

fiyat istikrarsızlığı önemli riskler oluşturmaktadır. İhracat olanaklarını artırabilmek için üretici örgütlenmesi ve üretici

örgütlerinin etkinliğini artırmak, kiraz üretim tekniklerinin bilimsel esaslara

göre yürütülmesi, uluslararası piyasalarda tat ve aroma bakımından tercih

edilen kiraz çeşitlerinin yaygınlaştırılması gerekmektedir. 
Diyarbakır İli Ergani İlçesinde Bulunan Bazı Meraların Ot Verimi, Ot Kalitesi ve Botanik Kompozisyonunun Belirlenmesi
Authors: KARAHAN Adem Doğan , SARUHAN Veysel
Published: October 2019

Bu araştırma, Diyarbakır ili Ergani

ilçesine bağlı doğal 4 farklı mahalle merasının, vejetasyon yapısının

belirlenmesi amacıyla yürütülmüştür. Araştırmada, her merada toplam 4 lup

hattındaki 400 noktada ölçüm yapılarak meradaki bitkilerin, yeşil ve kuru ot

verimleri, ADF ve NDF oranları, sindirilebilir kuru madde oranı, kuru madde

tüketimi, nispi yem değeri, ham protein oranı, ham kül oranı ve türlerin

botanik kompozisyondaki oranları belirlenmiştir. İncelenen meralarda yeşil ot

verimleri 63.50-108.75 kg/da, kuru ot verimleri 15.50-25.50 kg/da, ADF (Asit

Deterjanda Çözünmeyen Lif) oranı %31.00-38.40, NDF (Nötral Deterjanda

Çözünmeyen Lif) oranı %46.53- 60.30, SKM (Sindirilebilir Kuru Madde) oranı

%58.98 ile %64.75, KMT (Kuru Madde Tüketimi) %1.99-2.59, NYD (Nispi Yem Değeri)

95.51-129.78, ham protein oranı %12.28-18.06, ham kül oranı %8.43-11.41;

botanik kompozisyonda buğdaygillerin oranı %21.58-57.13, baklagillerin oranı

%11.50-40.65 ve diğer familya bitkilerinin oranı ise %23.48-41.43 arasında

bulunmuştur. Araştırma sonucunda, meralarında genel olarak istilacı türlerin

baskın olduğu görülmüş, bu durum söz konusu meraların otlatma baskısı altında

olduğu, dolayısıyla ot verimini olumsuz yönde etkilediğini göstermiştir. Uygun

mera amenajmanı yöntemlerinin uygulanmasıyla, bu meraların verimliliğinin

arttırılabileceği düşünülmektedir.
Economic Analysis of Dairy Cattle Farms in Turkey: A Case of Karacabey District
Authors: ÖZSAYIN Damla
Published: October 2019

The aim of this study was

to analyse the economic structure of dairy cattle farms in Karacabey district of Bursa province

in Turkey. The number of farms in the research area was determined through

stratified random sampling method. The data were collected from a total of 208

selected farms by means of survey method. The selected farms were divided into

three groups (5 to≤11 cattle, 12 to ≤26 cattle and equal 27 and >27 cattle).

The data were based on the 2017 production period. The study concluded that the

average daily

milk yield and lactatiton milk yield per cow of farms were 18.72 kg

and 4835.81 kg year-1. The total

production cost was found to be $49103.07. The average feed cost per farm was

accounted for 52.11% of the total production costs. As a result, the

study will potentially contribute to the increase of the amount of milk

production in farms and the development of dairy farming in Karacabey district,

which is the research are of this study.
Occurrence and Characterization of Coat Protein Gene of Zucchini yellow mosaic potyvirus (ZYMV) Isolate Infecting Pumpkin (Cucurbita pepo L.) in Bingol Province (Turkey)
Authors: GÜLLER Abdullah , USTA Mustafa
Published: October 2019

Zucchini yellow

mosaic potyvirus

(ZYMV) belongs to family Potyviridae, which causes serious economic losses in

many cucurbits from worldwide. In 2018 (September), leaf samples of pumpkin

exhibiting typical viral symptoms including mosaic, blistering and wrinkling

and healthy pumpkin leaf samples were collected from Bingöl and screened by

Reverse- Transcription Polymerase Chain Reaction (RT-PCR) against ZYMV

infection. Tested leaf samples were reacted positive resulting in an expected

about 840 bp DNA fragments of partial coat protein (CP) gene of ZYMV. ZYMV-CP

gene was further inserted into a pGEM-T Easy prokaryotic cloning vector and

their partial nucleotide sequences and deduced amino acid were ascertained. The

provided ZYMV- CP gene sequence consisted of 837 nucleotides in length coded

for 279 amino acid residues of approximately 31.2 kDa. The isolate was

denominated as ZYMV-Bingol and registered with MK689858 accession number in the

NCBI. The sequence of ZYMV- Bingol CP gene were aligned with 21 isolates

deposited in GenBank from different geographical location and its phylogenetic

relationships were determined. Molecular analysis of the ZYMV CP gene sequence

indicated the highest similarity with 100% Turkish isolate (JF317296) and the

lowest with 91.64% of Korea isolate (AF062518), at nucleotide level. Moreover,

phylogenetic analyses revealed that ZYMV Bingöl isolate is clustered with the

Turkish- Adana isolate (JF317296) and Pakistan isolate (AB127936). ZYMV has

been reported for the first time in the pumpkin plant from Bingöl province of

Turkey by this study.
Farklı Sıcaklık ve pH’ın Rotala rotundifolia (Buch-Ham. ex Roxb) Koehne’nın Aksillar Sürgün Rejenerasyonu Üzerine Etkisi
Authors: DOGAN Muhammet
Published: October 2019

Bitki doku kültürü çalışmalarında sıcaklık ve pH

önemli faktörlerdir. Bu faktörlerin optimizasyonu çoklu bitki üretimi için

önemlidir. Bu çalışmada, farklı sıcaklık (15-30°C) ve pH (5.5-6.6) koşullarında

Rotala rotundifolia (Buch-Ham. ex

Roxb) Koehne’nın etkili ve hızlı üretimi için bir optimizasyon çalışması

amaçlanmıştır. Sıcaklık çalışmalarında, ilk sürgün rejenerasyonları 25°C’de 12.

günde gözlenmiştir. En yüksek sürgün rejenerasyon frekansları (%100) 20 ve

25°C’de elde edilmiştir. Maksimum eksplant başına sürgün sayısı (23.38 adet) ve

en uzun sürgünler (1.74 cm) 25°C’de elde edilmiştir. Farklı pH uygulamalarında,

en yüksek sürgün rejenerasyon oranları (%100) pH 5.5 ve 6’da tespit edilmiştir.

En fazla eksplant başına sürgün sayısı (20.44 adet) ve en uzun sürgünler (1.71

cm) pH 6’da kaydedilmiştir. Eksplantlar genellikle yüksek pH değerlerinde daha

uzun sürgünler vermiştir. Kültür ortamında üretilen sürgünler köklendirildikten

sonra akvaryum ortamına başarıyla alıştırılmıştır. Sonuç olarak, R. rotundifolia’nın in vitro üretimi için optimum değerler 25°C sıcaklık ve pH 6 olarak

bulunmuştur.
Tarımsal Uygulamalarda Üreticilerin Çevre Algısının Analizi: Edirne İli Örneği
Authors: AYDIN Başak , ÖZTÜRK Ozan , ÖZER Selçuk , ÇEBİ Ülviye , ÖZKAN Erol
Published: October 2019

Bu çalışma, Edirne ilinde damla sulama

desteklemesinden yararlanan ve yararlanmayan üreticilerin tarımsal uygulamalar

konusunda çevre algılarının belirlenmesi amacıyla hazırlanmıştır. Edirne ilinde

2012-2017 yılları arasında damla sulama desteği alan 41 üreticinin tamamıyla

anket çalışması yapılmıştır. Çalışmada, aynı sayıda damla sulama

desteği almayan ve damla sulama desteği alan işletmelerle yaklaşık olarak aynı

işletme özelliklerine sahip üreticilerle de anket çalışması yapılmıştır.

Verilerin analizinde ortalama, standart sapma gibi tanımlayıcı istatistiklerden

yararlanılmış ve oluşturulan gruplar arasında farklılık olup olmadığı ki kare

testi ile ortaya konulmuştur. Üreticilerin çevre algılarının analizinde

kümeleme analizinden yararlanılmıştır. Hiyerarşik kümeleme yöntemlerinden Ward

tekniği ve hiyerarşik olmayan kümeleme yöntemlerinden de K-ortalama tekniği

kullanılmıştır. Ki kare testi sonucunda,

“tarımsal ilaçlar ve hormonlar çevreye zarar verir” ve “ilaçlama sırasında

koruyucu maske takarım” yargılarının destek alma durumuna göre değiştiği, diğer

faktörlerin destek alma durumuna göre değişmediği belirlenmiştir. Kümeleme

analizi sonuçlarına göre, birinci kümede yer alan çiftçiler toplam kitlenin

%81.71’ini, ikinci kümede yer alan çiftçiler %1.22’sini ve üçüncü kümede yer

alan çiftçiler ise %17.07’sini oluşturmaktadır. Destek alan üreticilerin

%85.37’si birinci kümede, %14.63’ü üçüncü kümede yer almıştır. Destek almayan

üreticilerin ise %78.05’i birinci kümede, %2.44’ü ikinci kümede, %19.51’i

üçüncü kümede yer almıştır. Sonuç olarak, üreticilerin tarımsal faaliyetler ve

bu faaliyetlerin çevre üzerine olan etkileri konusunda ilgili kurumlar

tarafından eğitilmeleri sağlanmalıdır.