bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving students’ mathematical reasoning and self-efficacy through Missouri mathematics project and problem-solving
Authors: Aprisal Aprisal , Abadi Agus Maman 
Published: December 2018

[English]: This article aims to elucidate the effectiveness of Missouri mathematics project-problem solving learning (MMP-PS) toward mathematical reasoning ability and self-efficacy. We conducted quasi-experiment research which involves 132 lower secondary school students (age 14-15 years old) as the population. Of the population, 25 students respectively in two classes were selected randomly as experiment class and control class. The experiment class was taught using MMP-PS, and a control class was taught using MMP (Missouri mathematics project learning). Data were analyzed using one sample t-test to examine the effectiveness of MMP-PS and MMP toward mathematics reasoning ability and self-efficacy. The difference of students’ mathematical reasoning and self-efficacy before and after the treatment was analyzed using Manova. The comparison of the effectiveness of MMP-PS and MMP were analyzed through a t-Benferroni test. This article shows that MMP-PS is effective on mathematical reasoning ability and self-efficacy. Meanwhile, MMP is effective on mathematical reasoning ability. The MMP-PS was better than MMP on students’ self-efficacy. Thus, MMP-PS could be utilized in mathematics learning to support students’ mathematical reasoning ability and self-efficacy.
Keywords: Missouri mathematics project, Problem solving, Mathematical reasoning, self-efficacy
[Bahasa]: Artikel ini bertujuan untuk mendeskripsikan keefektifan pembelajaran missouri mathematics project dengan pendekatan problem solving (MMP-PS) terhadap kemampuan penalaran matematika dan self-efficacy. Penelitian kuasi eksperimen dilaksanakan dengan melibatkan 132 siswa SMP (kisaran umur 14-15 tahun) sebagai populasi. Dipilih secara acak dua kelas yang terdiri dari masing-masing 25 siswa sebagai kelas eksperimen dan kelas kontrol. Kelas eksperimen diajar dengan menggunakan pembelajaran Missouri mathematics project dengan pendekatan problem solving dan kelas kontrol diajar dengan pembelajaran missouri mathematics project (MMP). Data penelitian dianalisis melalui uji satu sampel untuk mengukur keefektifan MMP-PS dan MMP terhadap kemampuan penalaran matematika dan self-efficacy. Perbedaan kemampuan penalaran matematika dan self-efficacy siswa sebelum dan sesudah pembelajaran dianalisis menggunakan uji Manova. Perbandingan keunggulan antara MMP-PS dan MMP menggunakan uji t-Benferroni. Hasil penelitian menunjukkan bahwa MMP-PS efektif ditinjau dari kemampuan penalaran matematika dan self-efficacy. Sementara itu, pembelajaran MMP efektif ditinjau kemampuan penalaran matematika. Pembelajaran MMP-PS lebih unggul dari pembelajaran MMP ditinjau dari self-efficacy siswa. Jadi, MMP-PS bisa digunakan dalam pembelajaran matematika untuk mendukung kemampuan penalaran matematika dan self-efficacy.
Kata kunci: Missouri mathematics project, Penalaran matematika, Self-efficacy, Pemecahan masalah
Exploring mathematization underpinnings of prospective mathematics teachers in solving mathematics problems
Authors: Lestariningsih Lestariningsih , Amin Siti Maghfirotun , Lukito Agung , Lutfianto Moch 
Published: December 2018

[English]: The purpose of this study was to explore the mathematization underpinnings of prospective mathematics teacher on mathematical problem-solving. This study used explorative research with a qualitative approach. The instruments in this study were mathematical ability test, contextual problems, and interview guidelines. A prospective mathematics teacher who has high mathematics ability involved in this study. The subject was selected from 56 prospective mathematics teachers through a test. After the subject solved contextual problems, an interview was conducted. The result revealed that prospective mathematics teacher did mathematization when solving the contextual problem by simplifying, solving in a structural way, and fitting to the context of the problem. This finding implies that mathematization could reveal the way prospective mathematics teacher formulates contextual problems into mathematical problems.
Keywords: Mathematization, Prospective mathematics teacher, Problem-solving, Contextual problems
[Bahasa]: Tujuan penelitian ini adalah untuk mengeksplorasi matematisasi yang mendasari mahasiswa calon guru matematika dalam menyelesaikan masalah matematika. Penelitian ini menggunakan penelitian eksploratif dengan pendekatan kualitatif. Instrumen yang digunakan dalam penelitian ini adalah tes kemampuan matematika, masalah kontekstual, dan pedoman wawancara. Subjek penelitian adalah seorang mahasiswa calon guru dengan kemampuan matematika tinggi yang dipilih dari 56 mahasiswa dengan menggunakan tes kemampuan matematika. Setelah subjek penelitian menyelesaikan masalah kontekstual, dilakukan wawancara. Hasil penelitian menunjukkan bahwa mahasiswa calon guru matematika melakukan matematisasi yang sangat penting karena menyelesaikan masalah matematika dengan menyederhanakan masalah, menyelesaikan masalah secara terstruktur, dan diarahkan sesuai dengan konteks yang ada dalam masalah. Temuan dalam penelitian ini mengungkapkan bahwa melalui matematisasi dapat diketahui cara mahasiswa dalam merumuskan masalah kontekstual ke dalam soal matematis.
Kata kunci: Matematisasi, Mahasiswa calon guru, Pemecahan masalah, Masalah kontekstual
Student’s thinking path in mathematics problem-solving referring to the construction of reflective abstraction
Authors: Sopamena Patma , Nusantara Toto , Irawan Eddy Bambang , Sisworo Sisworo , Wahyu Kamirsyah 
Published: December 2018

[English]: This article is a part of research which aimed to reveal the path of undergraduate students’ thinking in solving mathematical problems referring to the construction of reflective abstraction. Reflective abstraction is the process of thinking in constructing logical structures (logico-mathematical structures) by individuals through interiorization, coordination, encapsulation, and generalization. This article seeks to analyze a student with the simple closed path, as one of the two types of students’ thinking path found in the research, in solving limit problems. The thinking process of the student in solving mathematical problems occurred through the path of interiorization - coordination - encapsulation - generalization then to coordination - encapsulation - generalization. The path of the student’s thinking yields alternative to understand and marshal problem-solving activities in mathematics learning.
Keywords: Thinking path, Limit problem, Reflective abstraction, Simple closed path
[Bahasa]: Artikel ini merupakan bagian dari penelitian yang bertujuan mengungkap jalur berpikir mahasiswa dalam menyelesaikan masalah matematika berdasarkan konstruksi abstraksi reflektif. Abstraksi reflektif merupakan proses berpikir individu dalam membangun struktur logika (struktur matematis logis) melalui interiorisasi, koordinasi, enkapsulasi, dan generalisasi. Artikel ini akan menganalisis seorang mahasiswa yang memiliki jalur berpikir tertutup sederhan, salah satu dari dua jalur berpikir yang terungkap dalam penelitian, dalam menyelesaikan permasalahan limit. Proses berpikir mahasiswa dalam menyelesaikan masalah matematika berdasarkan konstruksi abstraksi reflektif dapat terjadi melalui jalur interiorisasi – koordinasi – enkapsulasi – generalisasi kemudian ke koordinasi – enkapsulasi – generalisasi. Hasil penelitian ini memberikan alternatif dalam memahami dan merancang aktivitas pemecahan masalah dalam pembelajaran matematika.
Kata kunci: Jalur berpikir, Masalah limit, Abstraksi reflektif, Jalur tertutup sederhana
15 Temmuz Kanun Hükmünde Kararnamelerinin Kamu Yönetimine Etkisi
Authors: TUNCEL Gökhan , DEMİRHAN Yılmaz 
Published: December 2018

Türkiye Cumhuriyeti Devleti’nin temel özelliği, yönetimde güçler
ayrılığı ilkesini esas almış olmasıdır. Bu esasa göre, yasama, yürütme ve yargı
güçleri ayrı ayrı örgütlenmiş olup bu güçlerin görev ve yetkileri ile yetki
kaynakları anayasada belirtilmiştir. Buna göre yasama gücü kanunları yapar,
genel kuralları koyar. Yürütme gücü kanunlara göre, bu kuralları uygular. Yargı
gücü ise uygulamadan kaynaklanan sorunları çözer. Türkiye’de güçlerin ayrılığı benimsenmiş
olsa da yürütme erki yönetimin merkezinde yer alır. Temsili demokrasilerde
yürütme gücünü doğrudan veya dolaylı yollarla seçilen hükümet kullanmaktadır.
Ancak, demokrasisi konsolide olamamış Türkiye gibi ülkelerde seçilmişlerin
iktidar olup, muktedir olamaması sorunu bulunmaktadır. Yürütmenin asli gücü
seçilmiş kanadı hükümetlerin seçimlerde vatandaşlardan aldıkları yetki ile
ülkeyi yönetmesi beklenirken seçilmişlerin emri altında çalışması gerekirken
yürütmenin atanmışlar kanadı kendi görev ve yetki alanının dışına çıkarak ülke
yönetiminde etkili olmuştur. Türkiye’de, özellikle çok partili siyasal yaşama
geçişin ardından darbeler veya MGK gibi kurullar aracılığıyla asker, siyaset ve
idare üzerinde doğrudan etkili olmuştur. 15 Temmuz 2016 gecesi yaşanan darbe
girişimi ülkede yeni bir sürecin başlamasını da beraberinde getirmiştir. Darbe
girişimi, vatandaşların desteği, hükümetin ve güvenlik güçlerinin mücadelesi
sonucunda başarısız olmuştur. Ancak, girişim sonrasında hükümet darbe
girişimini bertaraf etmek için bazı tedbirleri yürürlüğe koymuştur. Ülke
genelinde Olağanüstü Hal Yönetimi ilan edilmesi, bu tedbirlerin başında
gelmiştir. Bu çerçevede hükümet, çok sayıda Kanun Hükmünde Kararname çıkararak
başta kamu yönetimi olmak üzere pek çok alanda yasal düzenleme yapılmıştır.

Bu çalışmada, 15 Temmuz darbe teşebbüsünden sonra siyasal
iktidarın aldığı önlemlerin kamu yönetiminde meydana getirdiği bazı
değişiklikler inceleme konusu yapılmıştır. Bu inceleme, 21 Temmuz 2016-17
Temmuz 2018 tarihleri arasında Türkiye’nin tamamında üçer aylık sürelerle
uygulanan Olağanüstü Hal Yönetimi boyunca çıkarılan onlarca Kanun Hükmünde Kararname
(KHK)’ler bağlamında yapılmıştır. Bu çerçevede, KHK’larla merkezi yönetim,
yerel ve yerinden yönetimler alanında yapılan düzenlemelerin bir kısmına yer
verilmiştir. Çalışma, büyük ölçüde yasal-hukuksal metinlere dayanmaktadır.
Anais III CIOPB - III Congresso Interdisciplinar de Odontologia da Paraíba
Authors: Silva Wallid Carlos Nacimento da 
Published: December 2018

Prezados Congressistas, É com grande satisfação que os discentes do 9º período da Universidade Federal de Campina Grande realizou, durante os dias 08, 09 e 10 de novembro de 2018, o III Congresso Interdisciplinar de Odontologia da Paraíba (III CIOPB). Preestabelecemos uma grade científica na qual introduzimos palestrantes mestres e doutores, nomes de referência em trabalho de qualidade das mais diversas áreas de concentração da Odontologia, com o objetivo de atualizar os conhecimentos clínico-científicos e divulgar trabalhos que estão em alta. A cada nova edição do congresso buscamos novos temas que despertem a curiosidade dos congressistas a aprenderem sobre novos assuntos, compartilhando experiências sobre diversos conteúdos, estimulando o desenvolvimento da área.O planejamento da programação científica contou com palestras nas mais diversas áreas da odontologia, ministradas por palestrantes reconhecidos e renomados, que desejaram compartilhar com os congressistas temas importantes e modernos, além de novas técnicas. Os congressistas contaram, ainda, com a oportunidade de apresentar e assistir às exposições de diversos trabalhos científicos, na modalidade de painel na forma de pesquisa científica, relato de caso clínico, revisão de literatura e relato de experiência. Outrossim, o evento promoveu minicursos que enriqueceram os conhecimentos dos participantes. O evento também contou com uma programação social visando uma maior interação entre congressistas e palestrantes. Portanto, o evento foi um sucesso e esperamos a colaboração de todos para o IV CIOPB. Aproveito a oportunidade para agradecer o periódico Archieves of Health Intvestigation pela honrosa oportunidade em publicar os resumos dos trabalhos apresentados no evento. Meus sinceros agradecimentos.Wallid Carlos Nacimento da Silva - Presidente do III CIOPB
Proposition of stiffness reduction in analysis of clay brick masonry under cyclic/seismic loads
Authors: Kubica Jan 
Published: December 2018

Analysis of masonry buildings situated on seismic or mining activity terrains as well as subjected to dynamic human-induced vibrations and influences should base on the appropriated mechanical properties of masonry. There main parameters describing bending and shear stiffness’s of masonry shear walls are modulus of elasticity as well as shear modulus. Values of these parameters under seismic or cyclic loading are rapidly coming down due to the inelastic behaviour of the masonry. The problem of degradation of modulus of elasticity E as well as shear modulus G is presented and discussed based on the tests results of three types of clay brick masonry wall specimens subjected to compressive cyclic loads and some specimens under cyclic horizontally and vertical shearing (in one cycle) carried out at the Department of Structural Engineering of the Silesian University of Technology in Gliwice as well as results obtained by other researchers and available at the technical publications. As result there is proposed to determine the value of modulus of elasticity as 40 % of calculated with accordance with Eurocode 6 [1]. In case of shear modulus it is suggested to determine the G values as 20 % of initial values of modulus of elasticity, that is mean 50 % less than recommended in current version of Eurocode 6 [1] and perfectly correct with requirements given in Eurocode 8 [2].
Experimental study of the effect of vertical acceleration component on the slope stability
Authors: Korzec Aleksandra , Jankowski Robert 
Published: December 2018

The paper deals with the stability of earth dams subjected to seismic and paraseismic excitations occurring in the close distance to the dam. The Newmark’s stability approach, classified as a simplified dynamic method, has been extended for two directional dynamic loading case and the evolution of the friction coefficient. The paper is focused on the experimental verification of the proposed method for harmonic and cyclic excitations generated by a simple oscillating device as well as by one-directional shaking table. Main assumptions of the proposed method have been proved and the effect of the vertical acceleration on the stability of the dam has been demonstrated. In the experiments conducted under cyclic loading, the impact of the vertical acceleration on the permanent displacement of the block was equal to 57 %. However, in general, the exact magnitude of this impact depends on many factors, such as the vertical to horizontal peak ground acceleration ratio or frequency range of the vertical component of the earthquake.
Trust Optimization for Byzantine Attacks in Cognitive Networks
Authors: Saini Natasha , Pandey Nitin , Singh Ajeet Pal 
Published: December 2018

Background & Objective:
Cognitive Radio Network (CRN) is an emerging technology
that provides ability of adapting operating parameters to wireless devices in order to overcome spectrum
scarcity problems. However, involvement of numerous pervasive smart wireless devices introduces
many security threats in CRN. The research work specifically highlights the different kinds of attacks
that occur in cognitive networks.

Methods:
The algorithm is designed which focuses on vulnerabilities that occur in any single or an individual
node. The proposed algorithm will take many factors into consideration like integer programming,
trust and Byzantine failure model. Though there are various security parameters especially the
five major attributes like integrity, confidentiality, availability, authorization, access control and nonrepudiation,
which should be considered for developing any alogotithm.

Conclusion:
Nevertheless, certain security parameters are kept into consideration, which are embedded
into algorithm to make it of its unique kind.
Utilization of volcanic ejecta as a high-performance supplementary cementitious material by gravity classification and pulverization
Authors: Tomoyose Atsushi , Noguchi Takafumi , Sodeyama Kenichi , Higashi Kazuro 
Published: December 2018

The reaction of natural pozzolans is caused by volcanic glass composed of amorphous silicate; however, volcanic ejecta also contains crystal mineral, pumice, and sometimes weathered clay fraction in their natural conditions. By focusing on the differences of physical properties between these components, high-purity volcanic glass powder (VGP) was manufactured by dry gravity classification and pulverization. This paper reports the results of investigations to utilize pyroclastic flow deposits as a supplementary cementitious material (SCM).
Through this method, the glass content of VGP increased to 88% with a mean particle size of 1 μm, when that of the raw material is about 60%. Chemical analysis indicated that VGP is principally composed of silica (about 72%) and alumina (about 13%).
The performance of VGP as a SCM was evaluated by conducting tests on concrete mixtures, replacing 0% to 30% by weight of portland cement by VGP with a 20% to 60% water to cement ratio. VGP concrete showed better results of 7-and 28-day compressive strength compared to control concrete in all experiments. In particular, VGP demonstrated better flowability and strength development in concrete with a low water-binder ratio in comparison to silica fume.
El sistema mediático nacional como punto de partida. Los gobiernos del Frente Amplio y los medios en Uruguay
Authors: Schuliaquer Ivan 
Published: December 2018

<p>La relación entre los gobiernos de izquierda sudamericanos y los grandes grupos mediáticos nacionales a principios del siglo XXI se caracterizó por un enfrentamiento público. A diferencia de lo que sucedió en otros países, en Uruguay los gobiernos del Frente Amplio —de Tabaré Vázquez (2005-2010) y José Mujica (2010-2015)— lograron negociar —con los actores mediáticos establecidos— las escenas mediáticas, de maneras que les resultaron beneficiosas. Y lo lograron sin necesidad de modificar las reglas del juego, en tanto que los actores mediáticos más preponderantes buscaron congraciarse con sus gobiernos.</p><p> </p><p> Este artículo sostiene que un factor clave para explicar ese vínculo, y la diferencia con otros países, radica en el sistema mediático nacional uruguayo, lo que permite demostrar que, a escala relativa, el poder de los gobiernos es mayor para definir las escenas mediáticas. Para demostrarlo, sugerimos un modelo propio, con el fin de caracterizar la historia de los sistemas mediáticos nacionales de América Latina, en este caso, aplicado a Uruguay a través de dos dimensiones centrales: la estructuración del campo político —a partir del peso relativo del Estado sobre el campo mediático y de la centralidad de la mediación partidaria—, y la estructuración del campo mediático —a partir de la estructuración de las principales empresas de medios y de las culturas periodísticas.</p>
Análisis cinemático del prototipo de robot equino desarrollado para el simulador de prácticas de tiro montado en la Escuela Nacional de Carabineros
Authors: Rojas Ángel Jairo , Romero Roa Javier Raúl , Pardo Morales Jhonson , Andrade Ramírez Jaime Eduardo 
Published: December 2018

Este artículo de investigación comprende describir de forma aproximada el modelamiento cinemático directo del robot equino de seis grados de libertad “6-DOF” desarrollado como producto de la investigación en curso titulada “Simulador equino para prácticas de tiro montado en la ESCAR”. El manipulador diseñado tiene fines educativos y será utilizado en las prácticas de tiro montado, como herramienta de apoyo didáctico en los cursos de carabineros de la policía nacional. Se presenta la propuesta de diseño del manipulador robótico adaptado a las necesidades educativas. Se utilizan actuadores eléctricos lineales de potencia que acoplan los eslabones de la cadena cinemática propuesta. Se aproxima la cinemática directa del robot, utilizando el algoritmo de Denavit-Hartenberg “DH” y se calcula el modelo dinámico del manipulador. Finalmente se valida el prototipo realizando pruebas de simulación del comportamiento del manipulador mediante la creación de segmentos de programa en Matlab® y se comparan con los resultados obtenidos mediante el control del mecanismo desde una aplicación de software desarrollada para tal fin en Microsoft Visual C# 2013®.
PEMANFAATAN MINERAL Zn-Cu ORGANIK UNTUK MEMACU PERTUMBUHAN SAPI BALI PENGGEMUKAN PADA KELOMPOK TANI DI DESA TANGKIT
Authors: Musnandar Endri , Syafwan Syafwan , Muthalib Muthalib , Gushairiyanto Gushairiyanto 
Published: December 2018

Pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kinerja pertumbuhan sapi Bali yang dipelihara oleh peternak di desa Tangkit Kecamatan Sungai Gelam. Di desa ini terdapat kelompok tani yang memelihara sapi Bali untuk tujuan penggemukan akan tetapi kinerja pertumbuhannya masih sangat rendah yaitu berkisar 0,23 kg/ekor/hari. Kondisi ini disebabkan pemberian pakan yang hanya seadanya yaitu berupa hijauan saja tanpa diberikan pakan tambahan. Sementara itu, hasil penelitian Afzalani, dkk. (2012) mengemukakan bahwa pemberian pakan tambahan berupa suplementasi ampas tahu dan mineral Cu-organik dapat meningkatkan kinerja pertumbuhan sapi Bali yang diberikan pakan berbasis rumput rawa. Dikemukakan juga bahwa salah satu penyebab rendahnya produksi sapi di Indonesia bukan hanya kekurangan energi dan mineral tetapi yang lebih penting lagi adalah kekurangan mineral. Ampas tahu dan mineral Cu-organik akan menutupi kekurangan nutrisi pakan pada sapi yang diberi pakan berbasis rumput rawa. Ampas tahu adalah berupa sisa hasil pembuatan tahu, ketersediaannya cukup banyak disekitar desa Tangkit karena terdapat beberapa perusahaan tahu di sekitar desa, begitu pula Cu mudah diperoleh di toko kimia di sekitar perbatasan desa. Kondisi ini tentu kurang ideal dimana sapi kekurangan nutrisi tambahan sementara bahan baku pakan tambahan banyak tersedia. Oleh karena itu, teknologi suplementasi ampas tahu dan mineral Cu-organik untuk pakan sapi merupakan solusi yang tepat untuk mengatasi masalah ini. Sasaran kegiatan adalah petani yang mengusahakan penggemukan sapi Bali yaitu petani anggota kelompok tani “Sumber Makmur”. Metode yang digunakan pada kegiatan ini adalah gabungan atau perpaduan antara metode penyuluhan dan praktek pembuatan mineral Cu-organik. Diharapkan dari kegiatan ini akan dihasilkan mineral Cu-organik berbasis ampas tahu dan dicapai kinerja pertumbuhan sapi Bali yang lebih optimum di KelompokTani Rukun Makmur, Desa Tangkit.