bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH STRATEGI PEMBELAJARAN DAN KEMAMPUAN BERPIKIR LOGIS TERHADAP HASIL BELAJAR SEJARAH SISWA JURUSAN IPS SMA NEGERI 2 PEMATANGSIANTAR
Authors: . Asnewastri , Mursid R 
Published: May 2019

Abstrak: Penelitian ini bertujuan untuk mengetahui: (1) hasil belajar Sejarah siswa yang diajar dengan strategi pembelajaran elaborasi lebih tinggi dengan ekspositori, (2) hasil belajar Sejarah siswa yang memiliki kemampuan berpikir logis tinggi lebih tinggi dengan berpikir logis rendah dan (3) interaksi antara strategi pembelajaran dengan kemampuan berpikir logis dalam mempengaruhi hasil belajar Sejarah siswa. Metode penelitian yang digunakan adalah quasi eksperimen dengan desain faktorial 2 x 2. Teknik analisis yang digunakan adalah analisis varians dua jalur (Two Way Anava 2 x 2) dengan taraf signifikansi a = 0,05 dengan menggunakan Uji-F, pengujian uji lanjut menggunakan uji Scheffe. Temuan penelitian menunjukkan: (1) terdapat perbedaan yang signifikan antara hasil belajar Sejarah siswa yang diajar dengan strategi pembelajaran elaborasi dengan strategi ekspositori, (2) terdapat perbedaan yang signifikan antara hasil belajar Sejarah siswa yang memiliki kemampuan berpikir logis tinggi dengan berpikir logis rendah, dan (3) Interaksi antara strategi pembelajaran dan kemampuan berpikir logis akan memberikan efek yang tinggi dalam penguasaan materi pembelajaran sehingga hasil belajar Sejarah yang diperoleh tinggi. Kata Kunci: strategi pembelajaran, kemampuan berpikir logis terhadap hasil belajar sejarah Abstract: This study aims to determine: (1) the results of studying history students who are taught by learning strategy elaboration higher with expository, (2) the results of learning history students who have the ability to think logically high is higher by thinking logically low and (3) interaction between learning strategy and logical thinking skills in influencing student learning outcomes History. The method used is a quasi-experimental design with 2 x 2 factorial analysis technique used is the analysis of variance of two lanes (Two Way Anova 2 x 2) with significance level a = 0.05 using the Test-F, a further test testing use test Scheffe. The findings show: (1) there is a significant difference between the results of studying history students who are taught by learning strategies elaboration of the strategy expository, (2) there is a significant difference between the results of studying history students who have the ability to think logically high to think logically low, and (3) the interaction between the learning strategies and ability to think logically will give high effect in the mastery of learning material that learners' achievements obtained History high. Keywords: learning strategies, the ability to think logically to the learning outcomes of history
IDIOMATIC EXPRESSION IN UMPAMA PAKPAK WEDDING CEREMONY
Authors: Juli Rachmadani Hsb Aguni Berutu And 
Published: May 2019

This study deals with idiomatic expression in Pakpak wedding ceremony. The objectives of this study were to find out the categories of umpama, to describe the meaning of umpama, and to find out the dominant category of umpama used in Pakpak wedding ceremony. This research was conducted by using descriptive qualitative design. The data were 25 utterances of idiomatic expression (umpama) taken from Pakpak wedding ceremony records. The findings indicated that there were three categories of umpama Pakpak, they were: umpama related to flora, fauna, and daily activities. The total percentages of umpama for each category were: related to flora (52%), fauna (8%), and daily activities (16%), while not categorized (24%). The meaning of umpama in Pakpak wedding ceremony were containing wishes, hopes, prayers, and advices. The dominant category was related to flora (52%).
PENGARUH AKTIFITAS FISIK CONTINUOUS RUNNING DAN INTERVAL RUNNING TERHADAP SERUM GLUTAMIC OXALOACETIC TRANSAMINASE (SGOT) DAN SERUM GLUTAMIC PYRUVIC TRANSAMINASE (SGPT)
Authors: Harahap Novita Sari , Pranata Riski 
Published: May 2019

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh aktifitas fisik continuous running dan interval running terhadap SGOT dan SGPT pada mahasiswa Ikor Unimed Tahun 2017. Penelitian dilakukan di Stadion Universitas Negeri Medan, Laboratorium Fisik FIK, dan Laboratorium Kesehatan Daerah Dinas Kesehatan Provinsi Sumatera Utara. Metode penelitian yang digunakan dalam penelitian ini adalah metode eksperimen. Sampel penelitian menggunakan mahasiswa Ikor Unimed sebanyak 14 orang. Desain penelitian menggunakan Pretest-Posttest Group Design. Aktifitas fisik continuous Running dan interval running dilakukan dengan menggunakan Treadmill selama 12 menit dengan intensitas 60-70 %. Pemeriksaan kadar SGOT dan SGPT dilakukan di awal dan di akhir perlakuan. Teknik analisis data pada penelitian ini menggunakan uji t. Hasil penelitian menunjukkan bahwa peningkatan rerata kadar SGOT setelah aktifitas fisik continuous running sebesar 88,00 U/L yang sebelumnya sebesar 60,89 U/L dan setelah aktifitas fisik interval running sebesar 81,61 U/L yang sebelumnya 60,41 U/L. Hasil uji analisis diperoleh nilai p=0,662, yang menunnjukkan bahwa ada peningkatan namun tidak terdapat perbedaan yang bermakna p>0,05. Begitu juga dengan rerata kadar SGPT setelah aktifitas fisik continuous running sebesar 82,21 U/L yang sebelumnya sebesar 57,16 U/L dan setelah aktifitas fisik interval running sebesar 81,80 U/L yang sebelumnya 59,59 U/L. Hasil uji analisis diperoleh nilai p=0,655, yang menunnjukkan bahwa ada peningkatan namun tidak terdapat perbedaan yang bermakna p>0,05. Penelitian ini menyimpulkan bahwa bahwa tidak terdapat perbedaan yang bermakna antara aktifitas fisik continuous running dan aktifitas fisik interval running terhadap peningkatan SGOT dan SGPT pada mahasiswa IKOR UNIMED tahun 2017.Kata kunci: Continuous Running, Interval Running, SGOT dan SGPT
ANALISIS MANAJEMEN PEMBINAAN OLAHRAGA PRESTASI DI KONI PEMATANG SIANTAR
Authors: . Mesnan , Antonius Freddy 
Published: May 2019

Penelitianini bertujuan untuk melihat Analisis Manajemen Pembinaan Olahraga Prestasi di KONI Pematang Siantar. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan teknik survei dengan menggunakan angket,jumlah populasi dalam penelitian ini adalah 162 orang dan sample penelitian adalah 30 orang,kemudian dilakukan penyebaran angket dilokasi penelitian. Dari hasil penyebaran agket,setelah dianalisis dengan teknik persentase menunjukkan bahwa Manajemen Pembinaan Olahraga Prestasi yang dilakukan oleh Komite Olahraga Nasional Indonesia Pematang Siantar dikatagorikan baik sekali dengan persentase rata-rata sebesar 81,18% (sangat baik), dan persentase berdasarkan 4 (empat) fungsi manajemen yaitu perencanaan (planning) sebesar 71,9% (baik), pengorganisasian (organizing) sebesar 78,89% (baik), penggerakan (actuating) sebesar 85% (sangat baik), pengendalian (controlling) sebesar 88,93% (sangat baik). Dalam pembinaan olahraga prestasi terdapatbeberapa faktor lainnya yang mempengaruhi prestasi pada KONI Pematang Siantar yaitu sumber dana yang terbatas karna hanya mengandalkan dari APBD dan sarana prasarana yang tersedia masih terbatas karna masih meminjam prasarana dari pihak kota Pematang Siantar Dengan demikian dapat disimpulkan bahwa manajemen olahraga prestasi yang dilakukan oleh Komite Olahraga Nasional Indonesia Pematang Siantar memiliki katagori “baik”.Kata Kunci : Manajemen, Pembinaan, Olahraga, Prestasi
ANALISIS HASIL TALENT SCOUTING DISPORA KOTA MEDAN CABANG OLAHRAGA KARATE PADA CALON ATLET PPLD KOTA MEDAN
Authors: Ratno Puji , Nidyatama Neisya 
Published: May 2019

Penelitian ini bertujuan untuk mengetahui siswa yang memiliki bakat dibidang karate berdasarkan hasil analisis talent scouting yang dilakukan oleh DISPORA Medan Untuk Dibina Menjadi Atlet PPLD Kota Medan. Populasi dalam penelitian ini adalah seluruh peserta yang berjumlah 274 orang. Teknik pengambilan sampel menggunakan teknik purposive sampling, dimana yang akan menjadi sampel dalam penelitian ini adalah siswa-siswi dengan kriteria memilih karate sebagai pilihan pertama atau kedua. Berdasarkan hal tersebut maka didapat jumlah sampel sebanyak 7 orang.Metode penelitian ini adalah metode deskriptif kuantitatif. Intrumen penelitian berdasarkan tes sport search. Teknik analisis data menggunakan software sport search.Hasil dari penelitian ini diketahui bahwa siswa yang memiliki bakat dibidang karate dari hasil talent scouting DISPORA Kota Medan Tahun 2018 berjumlah 7 orang dari 274 siswa yang mengikuti tes tersebut. Empat orang yang dikategori pertama dan 3 orang dikategori kedua. Dari ketujuh anak tersebut tidak ada satu anak pun yang masuk dalam binaan PPLD Kota Medan. Hal ini dikarenakan anak yang dibina oleh PPLD Kota Medan adalah anak yang sudah menekuni karate cukup lama, sering bertanding dan mendapatkan juara pada event daerah, sedangkan anak yang mengikuti talent souting DISPORA Kota Medan tahun 2018 pada umumnya belum menggeluti olahraga tertentu. Kata Kunci: Karate, Talent Scouting, Sport Search
Fotografía de larga exposición y cine estructural: una reflexión en torno al Loop
Authors: Roncero Palomar Ricardo 
Published: May 2019

La posibilidad de reflejar el tiempo en la escena fotográfica tiene unos condicionantes estéticos derivados de una necesidad técnica, la apertura y clausura del obturador. Esta guillotina temporal es la encargada de seleccionar el fragmento de tiempo que queremos registrar, de tal manera que las acciones ocurridas durante este periodo obtendrán una representación gráfica. Este articulo trata de reflexionar sobre estas representaciones y a su vez de enlazarlas con la figura del sample y del loop. Se trataría de vincular la posibilidad de representación del tiempo ligado al movimiento a traves de la fotografía, con la idea de repetición temporal que aporta el loop. Elemento que fue desarrollado especialmente por el cine estructural durante la década de los 60. Para ello se estudiarán diversos ejemplos, tanto fotográficos como cinematográficos, de obras que abordan la cuestión de la representación temporal y se relacionarán con documentos escritos sobre el tema. Abstract: The possibility to reflect time in the photographic medium has certain aesthetic constrains derived from a technical necessity; the opening and closing of the shutter. This temporary guillotine is responsible for selecting the fragment of time that we want to capture, in a way that the actions that occurred during this period will obtain a graphical representation. This article intends to reflect on these representations and link them with the figure of the sample and the loop. It attempts to link the possibility of representing time, associated to movement through photography, with the idea of temporal repetition of the loop, element which was specially developed by the Structural Cinema movement during the 60's. To find an answer, photographic and cinematographic examples that analyzed the issue of temporary representation will be studied and will be related with written documents about the subject. Palabras clave: Fotografía; larga exposición; cine estructural; loop; sample; tiempo. Keywords: Photography; Long-exposure; Structural Film; Loop; Sample; Time
La revuelta temporal como método de la vanguardia de entreguerras
Authors: Soliña Barreiro María 
Published: May 2019

El cine de vanguardia es un medio privilegiado para estudiar la experiencia temporal moderna porque es un complejo compendio de tiempos y discontinuidades. Y a su vez, la temporalidad es clave para definir y estudiar la vanguardia cinematográfica. En ella se unen el interés por la exploración del movimiento, los experimentos con la imagen, la desafección narrativa y la afección por lo real. Propone también la subversión del campo fílmico (y, por veces, social). Los cineastas de vanguardia no construían un discurso temporal alternativo pero sí se dotaban de un cuerpo coherente de revuelta basado en la exploración de esas temporalidades diversas. Trataron también de establecer la imagen como método, de deconstruir la racionalización instrumental del dominio visual y propusieron que de la variedad de discursos temporales en convivencia emanaba una nueva forma de historia y de imagen. Este artículo es un ensayo sobre el método de análisis de la temporalidad en la vanguardia. Abstract:Avant-garde cinema is a privileged means to study the modern time experience because it is a complex compendium of times and discontinuities. At the same time, the temporality is a key element to define and study the 20’s cinematographic avant-garde. This cinema is characterized by the exploration of movement, the experiments with the image, its lack of interest in narrativity and its interest on the real. It also proposes a subversion of the filmic field (and sometimes, also the social field).Avant-garde filmmakers did not construct an alternative temporal discourse but they organized a coherent uprising corpus based on the exploration of those diverse temporalities. They established the image as a method, the deconstruction of the instrumental rationalization of the visual dominion and they proposed that a new type of history and image emanates from the coexistence of the variety of temporal discourses. This paper is an essay on methods to study avant-garde temporality. Palabras clave: Cine de vanguardia; temporalidad; años 20; entreguerras; Benjamin. Keywords: Avant-garde Cinema; Time; 20’s; Interwar Period; Benjamin
El arte cinematográfico y el arte gastronómico: dos caminos paralelos que transitan en torno al tiempo
Authors: Santamarina Andrea 
Published: May 2019

Este artículo expone las semejanzas y diferencias entre el séptimo arte y la gastronomía de vanguardia a partir de la formulación de la siguiente hipótesis: si el cine es el arte por excelencia del tiempo y del espacio, mientras la gastronomía lo es de lo efímero: ¿en qué medida esta última puede ser un arte sin contar con la ayuda de los medios audiovisuales? Tras un capítulo introductorio en el que se definen y describen a grosso modo ambas disciplinas, el artículo señala, primero, los caminos paralelos que han seguido ambas desde la aparición del cinematógrafo para detenerse después en mostrar su imbricación con la sociedad de su tiempo y su entrada, casi simultánea, en los museos y, en el caso de la gastronomía, en los festivales a la par que hace hincapié en sus fuentes de inspiración, referencias y canales de exhibición y de divulgación. Por último, se detiene en analizar los puntos comunes de sus métodos de trabajo para, al igual que se ha venido haciendo en los apartados anteriores, señalar las concomitancias y diferencias existentes entre ambos. Abstract: This article discusses the similarities and differences between cinema and avant-garde cuisine from the formulation of the following hypothesis: if cinema is the art par excellence of time and space, while cuisine is of the ephemeral: to what extent this last one can be an art without the help of audio-visual media? After an introductory chapter in which are defined and described roughly both disciplines, the article points out, first, the parallel ways followed by both since the birth of cinema to reflect on how to show their relation with the society of their time and their entrance, almost simultaneously, in museums and, in the case of gastronomy, in festivals, later. At the same time the article emphasizes in their inspiration sources, references and channels of display and divulgation. Finally, analyzes the common points of their working methods, as it has been done in previous sections, pointing out the similarities and differences between them. Palabras clave: Cine; gastronomía; procesos; tiempo; memoria; efímero. Keywords: Cinema; Gastronomy; Process; Time; Memory; Ephemeral.
La representación del dolor y la pérdida en el cine documental. El caso de Geografía del Dolor
Authors: Alcalá Anguiano Fabiola 
Published: May 2019

Geografía del Dolor es un proyecto documental realizado por la fotoperiodista mexicana Mónica González. Este filme retrata las consecuencias de la guerra contra el narcotráfico, a través del testimonio de familiares que buscan a sus desaparecidos o que reclaman su asesinato. En este texto planteamos un análisis de la parte audiovisual del proyecto, desde un punto de vista hermenéutico y siguiendo la lógica del discurso retórico. El objetivo es preguntarnos sobre los recursos ético-estéticos que utiliza, y ver si existe alguna concordancia con filmes documentales clásicos, preocupados también por reflexionar sobre la representación del dolor y la pérdida. Abstract: Geografía del dolor is a documentary project by the Mexican photojournalist Mónica González. It portrays the consequences of the war on drugs, through the testimony of relatives looking for their missing ones or claiming his murder. Trough this paper we propose an analysis of the audiovisual part of the project, from a hermeneutical point of view and following the logic of rhetorical discourse. The goal is to wonder about the ethical and aesthetic resources used and also to see if there is any agreement with classic documentary films, worried too, to reflect on the representation of pain and loss. Palabras clave: Cine documental; ética; estética; fotoperiodismo; desaparecidos; dolor y pérdida. Keywords: Documentary film; ethics; aesthetics; photojournalism; missing; grief and loss.
Stability analysis of fourth-order iterative method for finding multiple roots of non-linear equations
Authors: Cordero Alicia , Jaiswal Jai P. , Torregrosa Juan R. 
Published: May 2019

Abstract
The use of complex dynamics tools in order to deepen the knowledge of qualitative behaviour of iterative methods for solving non-linear equations is a growing area of research in the last few years with fruitful results. Most of the studies dealt with the analysis of iterative schemes for solving non-linear equations with simple roots; however, the case involving multiple roots remains almost unexplored. The main objective of this paper was to discuss the dynamical analysis of the rational map associated with an existing class of iterative procedures for multiple roots. This study was performed for cases of double and triple multiplicities, giving as a conjecture that the wideness of the convergence regions of the multiple roots increases when the multiplicity is higher and also that this family of parametric methods includes some specially fast and stable elements with global convergence.
The determination of polycyclic aromatic hydrocarbons in some foods from industrialized areas in South Eastern Nigeria: human health risk impact
Authors: Onyedikachi Uchechi Bliss , Belonwu Chuka Donatus , Wegwu Mattew Owhonda 
Published: May 2019

Abstract
This study investigated the potential health risk due to dietary exposure to Polycyclic Aromatic Hydrocarbons (PAHs) for the populace living around selected industrial areas in the south eastern states of Nigeria. The concentrations of PAHs were measured in edible food crops using Gas Chromatography - Flame Ionization Detection (GC-FID). The mean concentration of PAHs in food crops collected ranged from < 0.01 to 2.64 ± 0.02, 5.27 ± 0.04, 0.96 ± 0.02, 8.94 ± 0.01 and 1.95 ± 0.06 in mg/kg for Osisioma, Ishiagu, Irete, Akwuuru, and Ngwo respectively. PAHs distributions in food samples analyzed in this study showed vegetables to be significant higher (p ≤ 0.05) in the order vegetables > fruits > nuts > tubers. Total PAHs (ΣPAHs) concentrations in most crop samples had highest values 14.49, 36.29, 4.59, 23.36 and 21.8 mg/kg for Chyrysophyllum albidum, Telferia occidentalis, Vernonia amygdalina, Talinum triangulare and Elaies guinnensis for Osisioma, Akwuuru, Irete, Ishiagu and Ngwo respectively. The low molecular weight-PAHS/high molecular weight-PAHS were < 1 with values 0.76, 0.18, 0.28, 0.91 and 0.12 for Osisioma, Irete, Akwuuru, Ishiagu and Ngwo respectively. 58.3% and 71.7% of ΣB(a)P and ΣPAHs in food samples in the study areas exceeded the permissible limits set by DPR and EU. The estimated daily intake of PAHs via the ingestion of food crops were within the tolerable range. The carcinogenic risk values for the food crops were within the predicted permissible lifetime risks of carcinogen (10−6-10−4) for adults and children in Osisioma, Akwuuru, Ishiagu and Enugu respectively. Therefore, this study suggests that the populace around industrialized areas in South Eastern Nigeria, may be at risk due to PAHs exposure through food consumption.
A simplex method for the calibration of a MEG device
Authors: Vivaldi Valentina , Sommariva Sara , Sorrentino Alberto 
Published: May 2019

Abstract
MagnetoEncephaloGraphy (MEG) devices are helmet–shaped arrays of sensors that measure the tiny magnetic fields produced by neural currents. As they operate at low temperature, they are typically immersed in liquid helium. However, during the cooling process the sensor position and shape can change, with respect to nominal values, due to thermal stress. This implies that an accurate sensor calibration is required before a MEG device is utilized in either neuroscientific research or clinical workflow. Here we describe a calibration scheme developed for the optimal use of a MEG system recently realized at the “Istituto di Cibernetica e Biofisica” of the Italian CNR. To achieve the calibration goal a dedicated magnetic source is used (calibration device) and the geometric parameters of the sensors are determined through an optimisation procedure, based on the Nelder-Mead algorithm, which maximises the correlation coefficient between the predicted and the recorded magnetic field. Then the sensitivity of the sensors is analytically estimated. The developed calibration procedure is validated with synthetic data mimicking a real scenario.
On weak regularity requirements of the relaxation modulus in viscoelasticity
Authors: Carillo Sandra , Chipot Michel , Valente Vanda , Caffarelli Giorgio Vergara 
Published: May 2019

Abstract
The existence and uniqueness of solution to a one-dimensional hyperbolic integro-differential problem arising in viscoelasticity is here considered. The kernel, in the linear viscoelasticity equation, represents the relaxation function which is characteristic of the considered material. Specifically, the case of a kernel, which does not satisfy the classical regularity requirements is analysed. This choice is suggested by applications according to the literature to model a wider variety of materials. A notable example of kernel, not satisfying the classical regularity requirements, is represented by a wedge continuous function. Indeed, the linear integro-differential viscoelasticity equation, characterised by a suitable wedge continuous relaxation function, is shown to give the classical linear wave equation via a limit procedure.
Mathematical Approach and Implementation of Frequency Mapping Techniques in Power-Line Communications Channel
Authors: Lukusa Tedy , Ouahada Khmaies , Ferreira Hendrik C. 
Published: May 2019

Abstract
Power-line channel is considered to be a very hostile channel compared to other channels in view of the different types of noise that could exist. Therefore, the choice of the error correcting code and the modulation scheme can play a big role in combating the noise in such a channel. M -FSK modulation has shown its robustness for such a type of channel. Two frequency mappings techniques are presented in this paper. In the first technique, M orthogonal frequencies are arranged in sequences based on the value and the position of permutation symbols, while in the second technique, the frequencies are rearranged based on the sign changes of the Walsh-Hadamard transform (WHT). The obtained M-FSK modulation is combined to codes based on Viterbi decoding algorithms since Viterbi decoder is considered to be the maximum-likelihood decoding algorithm for convolutional codes and codes with state machine representation. A mathematical approach and implementation of frequency mappings is introduced to investigate the performance of the new designed communication system in the presence of permanent frequency disturbances, also known as narrow-band interference (NBI), such as those encountered in power line communications (PLC) channel.