bluuebunny/crossref_metadata_2025 huggingface dataset:
LABORATÓRIO DIALOGAL FÉ E RAZÃO: UM ENCONTRO POSSÍVEL NO ÂMBITO UNIVERSITÁRIO
Authors: Caeli Castro Azevedo Virgínia , Do Nascimento Ferreira Anna Luísa , Seabra de Sousa Paula Márcia , De Azevedo Patrick Wagner , Gasparet Murialdo
Published: October 2017

Trata-se de um espaço criado, nos Institutos Superiores de Ensino do CENSA, para questionamentos, diálogos, buscas científica e humana, onde ciência e religião possam se encontrar de maneira acadêmica e ética. A metodologia utilizada foi a Revisão Sistemática de Literatura desenvolvida nos últimos dez anos, publicadas em português em Revistas Indexadas no Scielo, utilizando como descritores: Fé, Razão e Religião. Foram recuperados três artigos científicos e, por essa limitação quantitativa, também recorremos a obras literárias voltadas para temática. O objetivo desse primeiro projeto foi proporcionar o encontro e o diálogo entre religião e ciência, sendo algo engrandecedor para a humanidade, na medida em que essas realidades, de alguma forma, estão intrinsecamente ligadas à vida humana. Os resultados apresentados nos levam a compreender que o questionamento traz um movimento ao ser humano, tendendo a tornar-se pesquisa e ciência. Por outro lado, a religião, de alguma forma, perpassa a vida do ser humano, traz desejos, inspirações, questionamentos e conflitos, deparando-se, assim, com a ciência. O homem deseja, por natureza, superar todas as suas dificuldades e vive em busca de respostas, querendo desvendar todos os mistérios da vida. Acreditamos, com esse projeto, contribuir para um melhor entendimento sobre religião versos razão, bem como a interação e união das mesmas dentro da ética.
UMA ABORDAGEM SOCIOMÉTRICA PARA A REDE DE EMPREENDEDORISMO
Authors: Jóia Marques da Silva Filho Valquirio , Uebe Mansur André Fernando
Published: October 2017

O desenvolvimento regional passa, inevitavelmente, pela articulação dos atores econômicos e demais stakeholders de uma região. A existência de canais para diálogo e interlocução dos mesmos fortalece e amplia as possibilidades de incremento econômico e desenvolvimento, principalmente nos setores relacionados às Pequenas e Médias empresas (PMEs). Buscando explorar os recursos tecnológicas que permitem vínculo em rede destes atores, os papéis de instituições de fomento, como incubadoras de empresa e instituições de ensino, se intensificam, uma vez que estas veem ampliadas seu poder de articulação para além das fronteiras físicas regionais de atuação. A possibilidade de se fazer uso de Novas Tecnologias da Informação e Comunicação (NTICs) se mostram como uma possibilidade mais que viável para o fomento ao desenvolvimento regional e acadêmico, dada pela associação de indivíduos com ideias criativas e organizações empreendedoras. Buscando uma articulação entre pesquisa e extensão, a Join Venture Social Network (JoVen) se vislumbra, portanto, como um projeto focado no uso de tecnologias open source e recursos que promovam portabilidade e mobilidade, por meio de uma Rede Social Digital nos campos da Administração, Economia e Tecnologia, criando um ambiente digital que permita a conexão e diálogo entre proponentes de projetos empreendedores e propensos investidores. Este projeto objetiva   facilitar a conexão e diálogos entre proponentes empreendedores e propensos investidores. Para colocar em pratica ideias e projetos de empreendedorismo, em realidade, através de uma rede virtual digital. Até o presente momento, alguns passos significativos podem ser apresentados, como: definição do tipo de rede digital que será usado, telas e sistemas de requisitos do sistema.
Characteristics of phosphate phase (fluorapatite and monazite) in the South Nam Xe carbonatites, Northwest Vietnam
Authors: Thủy Nguyễn Thị , Nụ Nguyễn Thị Hồng
Published: October 2017

This paper presents characteristics of appearance and mineral chemistry of phosphate phase, including fluorapatite and monazite in the South Nam Xe carbonatite dykes in Northwest Vietnam. These minerals occur in both calcio- and ferrocarbonatites in various modes. Most of the fluorapatites in the calciocarbonatites are oblong to elongated, and have sharp contacts with calcite, aegirine and phlogopite suggesting their primary origin; whereas those in the ferrocarbonatites are commonly present in forms of stubby to perfect hexagonal prismatic crystals, which partly replaced by the monazite. The monazites in the ferrocarbonatites also occur as hundreds micro isolated crystals, which associated with ankerite, feldspar, magnetite and phlogopite.

Contents of fluor and rare earth elements (REE) are relatively high (F up to 4.26 wt.%; REE up to 5.19 wt.%) indicating a F- and REE-enriched precipitation for the carbonatites. The enrichment in light REEs in the fluorapatite is paired with an enrichment in Na, varying from 0.25 wt.% to 0.89 wt.%. The replacement of REE and Na for Ca in the fluorapatites, which leads to change in CaO/P2O5 ratios might show an open system where Ca and P are added to areas of the fluorapatite depleted in light REE (LREE). REE contents in the monazite show a very limited variation, and are mainly composed of La, Ce and Nd (La2O3 = 21.09-22.72 wt.%, Ce2O3 = 32.82-33.35 wt.%, Nd2O3 = 6.96-8.20 wt.% in calciocarbonatite; La2O3 = 16.61-17.39 wt.%, Ce2O3 = 32.07-33.52 wt.%, Nd2O3 = 8.92-10.94 wt.% in ferrocarbonatite). 
Sistem Informasi Pengukuran Efektivitas Produksi BerbasisWeb (Studi Kasus : PT. Beiersdorf Indonesia)
Authors: Rakhmadani Diovianto Putra , Wicaksono Soetam Rizky
Published: October 2017

The effectiveness of the production is a must knowledge in a manufacture company, because it is closely
linked to the success level of a company, if effectiveness reaching high level, it will lead to be successful in
terms of meeting production targets. It is also happened at PT Beiersdorf Indonesia which requires method to
measure the effectiveness of production in their companies, particularly in Elastoplast production division.
PT Beiersdorf Indonesia requires certain method IPC computerized checklist which the system can give
information related to the evaluation of the effectiveness of production. Based upon these problems, it is clearly
stated that they need to use innovation in Effectiveness Level Measurement Information System Production.
This information system is designed to help the all involved employees the process, documenting, and directly
controls the activity of production. in this study, by creating the new system will help the company to conduct
an evaluation of the production process.
Perancangan Sistem Value Chain terhadap Prospek Pengumpulan E-Waste di Bank Sampah
Authors: Kelvin Stephanus , Kristina Helena J. , Jobiliong Eric
Published: October 2017

Electronic waste (e-waste) has become environmental issue in Indonesia. Several tons of e-waste was generated each year. Available landfills will not be sufficient to accommodate e-waste that people produce. Waste bank become one of many solutions to overcome this problem. Implementation of pilot project in waste bank is needed to see the prospects of e-waste collection in waste bank. Thus, the goal of this research is to design a value chain system for e-waste collection prospect in waste bank and system simulation as the foundation for implementing a pilot project.

Simulations on 2 scenarios had been done to determine profitability of e-waste collection’s pilot project in waste bank. Based on simulation, it is known that there is profit generated from e-waste recycling process for 2 scenarios. Ranges of profit for 2 months are Rp. 7.963.879 - Rp. 40.447.047 for scenario 1 and Rp. 7.952.394 – 40.435.561 for scenario 2. If only PCB component that could be recycled, profit for 2 months still can be generated in the range Rp. 689.964 – Rp. 6.398.486 for scenario 1 and Rp. 678.478 – Rp. 6.387.000 for scenario 2. Thus, implementation of e-waste collection’s pilot project in waste bank is profitable.
Perubahan Postur/Sikap Tubuh Pada Aktivitas Pewarnaan Batik (Colet) Setelah Dilakukan Perancangan Meja Batik Secara Ergonomi Untuk Mengurangi Keluhan
Authors: Siswiyanti Siswiyanti , Luthfianto Saufik
Published: October 2017

The posture/body position of batik maker is conducted by kneeling on the ground (squatting) especially on the staining activity (smearing) that is placed on the floor. This body position causes the batik maker’s posture or position in doing the static work (motionless) approximately 3 hours per staining. It can cause a fatigue in static muscle load. In order to reduce static muscle load, the researchers tried to design the alternative tool to be a replacement of batik rest. The purpose of this research is to know the reduction level of muskuskeletal complaints, fatigue and how well the increase in productivity after the change of posture/staining position (smearing) on the floor becomes sitting position in a chair-table in Ergonomics. The research method is the similar subject experiment. Batik table design has an adjustable height and tilt and also can be rotated so that It facilitates the process of coloring (smearing). The Application of Ergonomics in Designing Batik table can show the reduction level of musculoskeletal complaints in batik coloring (smearing) up to 36.63%, the fatigue decrease around 16.73% and the increase of productivity around 68.18%. It indicates that the improvement of squatting position into a sitting position using a chair-table can reduce the complaints of the musculoskeletal system, fatigue and increase the productivity of batik worker.
Implementasi Line Balancing untuk Peningkatan Efisiensi di Line Welding Studi Kasus: PT X
Authors: Azwir Hery Hamdi , Pratomo Harry Wahyu
Published: October 2017

Line balancing is a jobs assignment into a number of work stations that are interrelated in a track or a production line with an objective to minimizing the idle time on the line that is determined by the slowest operation. In line welding 1DY models includes eight work stations where one work station is done by one operator. Problems have been found that these operators have very long idle time and also there is too much wip that creates bottleneck in the production line so these leads to a waste of manpower and time. This waste of manpower and time need to be reduced by determining the optimal amount of labor in order to avoid excessive idle time but work can be done effectively and efficiently. One way to adress imbalance line is to apply line balancing methods.The results of this research shows that the line balancing methods can reduced the waste of time and give solutions for the optimal amount of labor requirements for line welding 1DY models.

Keywords: Line Balancing, Workstation, Production Line, Idle Time, Bottleneck.
Death Penalty: The Present Day Threat to Human Life
Authors: Phillips Gerardette
Published: October 2017

The death penalty is not an act of self-defense against an immediate threat to life. It is the premeditated killing of a prisoner who could be dealt with equally well by less harsh means.  There can never be a justification for torture or for cruel, inhumane or degrading treatment or punishment. The cruelty of the death penalty is evident. Like torture, an execution constitutes an extreme physical and mental assault on a person already rendered helpless by government authorities. The most common justification offered is that, terrible as it is, the death penalty is necessary: it may be necessary only temporarily, but, it is argued, only the death penalty can meet a particular need of society. And whatever that need may be, it is claimed to be so great that it justifies the cruel punishment of death. The death penalty, as a violation of fundamental human rights, would be wrong even if it could be shown that it uniquely met a vital social need. What makes the use of the death penalty even more indefensible and the case for its abolition even more compelling is that it has never been shown to have any special power to meet any genuine social need.
Berketuhanan dalam Perspektif Kepercayaan Sunda Wiwitan
Authors: Indrawardana Ira
Published: October 2017

By referring to the variety of cultures that have emerged and flourished in Indonesia, the author wants to figure the depth of ‘belief’ in God in relation to the respective cultural and spiritual expressions and through the rituals performed by the people of this belief (kepercayaan). Because of the influence of ‘Western’ beliefs brought into Indonesia by the colonialists in the past, the life of the people believing in God from within their own local beliefs together with the diversity of their cultures and spiritualities seem to have been marginalised. What is needed is a sort of new paradigm to view and value the local beliefs in the face of the so-called ‘official religions’ in Indonesia. This greater appreciation to the people of the local beliefs is in the line with the growing awareness of plurality of societies in this land. Efforts to recognise and understand the essence and values in the system of the local belief are of great importance. The author tries to explore how the doctrines of the belief Sunda Wiwitan develop by starting to browse the historical aspect of Manusia Sunda (‘Sundanese human being’) within its religious context and the other related elements in this system of belief. What is most important for the adherents of Sunda Wiwitan is not so much the frequence of praying to or worshiping God as the effort of every individual to maintain the attitude and deeds as a human being that keep the harmony of relation with the other human beings, the surrounding nature with all its contents, and God.
Chronicles - April 2014
Authors: Tedjoworo Hadrianus
Published: October 2017

'Chronicles' is a journal column of "MELINTAS" which contains information about the various events, congresses, conferences, symposia, necrologies, publications, and periodicals in the fields of philosophy and theology.
A Hermeneutics of the Kingdom of God in the Context of Armed Conflict in Mindanao
Authors: Narciso Jerson B.
Published: October 2017

This study attempts to come up with a contextual theological understanding of the biblical concepts of the Kingdom of God in the light of the armed conflict in Mindanao. It seeks to understand the roots and causes of conflict in Mindanao (hermeneutical situation), into which the meaning of the biblical message of a peaceable kingdom is interpreted and understood in a meaningful manner. Taking into account the current socio-political, economic and cultural realities that contribute to the on-going armed conflict in Mindanao, this study raises the issue of how the kingdom of God which embodies God’s love, peace, liberation and justice should be understood and concretized in a way that it could inform and influence the different religious groups and organizations involved in the Mindanao peace process. This attempt for contextualization is based on the principle that theological formulation in the context of conflict in Mindanao, can only be meaningful and intelligible if it reflects critically on the lived-experiences that is shared by different Muslim and Christian communities in Mindanao, especially the poor and marginalized masses in their search for well-being and self-determination.
Chronicles - August 2014
Authors: Tedjoworo Hadrianus
Published: October 2017

'Chronicles' is a journal column of "MELINTAS" which contains information about the various events, congresses, conferences, symposia, necrologies, publications, and periodicals in the fields of philosophy and theology.
O programa ler e escrever nas instituições de ensino superior: as falas das alunas pesquisadoras
Authors: Liberato Amanda Maria Franco , Vercelli Ligia De Carvalho Abões
Published: October 2017

Este texto apresenta o resultado de uma pesquisa de mestrado que teve por objetivo geral analisar a formação sob a perspectiva das alunas pesquisadoras em três Instituições de Educação Superior parceiras do Programa Ler e Escrever/Escola Pública e Universidade na Alfabetização/Bolsa Alfabetização do Governo do Estado de São Paulo. O universo da pesquisa foram três IESs privadas (A, B e C) localizadas na cidade de São Paulo, sendo as duas primeiras faculdades e a terceira, universidade. Como resultados constatamos que as alunas pesquisadoras das faculdades A e B recebem formação mais voltada aos aspectos administrativos, com poucas horas de estudo e reflexão dificultando a apreensão dos conceitos básicos referentes ao processo de alfabetização, mostrando-se inseguras quando imersas na escola, enquanto que as alunas pesquisadoras da universidade C recebem formação mais voltada aos aspectos pedagógicos, possibilitando que elas tenham maior contato com os autores que discutem a alfabetização numa perspectiva construtivista, levando-as a melhor compreensão dos conceitos e, consequentemente, dos procedimentos adotados pelas professoras regentes.
Currículos de formação docente do PARFOR/ UFPA: atualizações e virtualidades
Authors: Maués Josenilda
Published: October 2017

Este escrito  assume o raciocínio de que o encontro entre a Universidade Federal do Pará, os currículos das licenciaturas e os docentes em exercício na educação básica do Estado do Pará quando da oferta de 21 licenciaturas por meio do Plano Nacional de Formação de Professores da Educação Básica – PARFOR, força-nos a transitar por movimentos contíguos de desterritorialização das imagens curriculares espaço-temporais já delineadas e de encontro com linhas de variação e indagações em horizonte virtual absoluto sobre quais outros regimes espaço-temporais possamos pensar  currículos de formação docente. É possível, portanto, que estejamos experimentando do ponto de vista curricular, por meio do PARRFOR-UFPA, um tipo de prática que se afasta, em termos temporais, de sequencialidades lineares na tríade presente/passado/futuro, passando a lidar com a acepção de um tempo múltiplo que assume a coexistência de diferentes planos desordenados que se desdobram em atualidades e virtualidades. Em termos espaciais possibilita, também, o encontro com imagens de pensamento que extrapolam a ideia de um plano interno ou externo à experiência curricular, para além do que se denomina intra ou extracurricular. Considerando as reordenações em termos de projeto pedagógico, espaço e tempo de formação experimentadas pelo PARFOR/UFPA acionamos o par atual-virtual, em seu cariz deleuziano, para buscar os contornos e virtualidades dessa experiência. As conclusões apontam para o fato de que a execução desses projetos atrita centralmente coordenadas  centrais na  definição curricular, aquelas de ordem espaço-temporal procedendo a um movimento de desterritorialização e produção de territórios outros, participando da  criação de uma espécie de entre-lugar que  nos possibilita experimentar outras intensidades espaço-temporais para os currículos de formação docente em execução na UFPA.
A formação ética prevista nas diretrizes do programa ensino integral da secretaria de Estado da Educação de São Paulo
Authors: Fernandes Vladimir
Published: October 2017

Este artigo apresenta a proposta de formação ética prevista nas diretrizes do Programa Ensino Integral da Secretaria de Estado da Educação de São Paulo. Sabe-se que o ser humano não nasce moral ou ético, nasce amoral. Paulatinamente, em seu processo de convivência, vai se apropriando dos costumes, da linguagem, dos valores morais do seu grupo social, dessa forma, a formação moral e ética pressupõe um processo educacional. Esse processo de formação não é exclusivo da escola, mas a escola é o seu locus principal. Este artigo tem como referencial os principais aspectos que estruturam o Programa Ensino Integral (PEI), uma vez que este programa explicita como finalidade principal a formação plena dos estudantes de modo que se tornem éticos, autônomos, solidários e competentes.
O transtorno do espectro autista e sua singularidade: uma proposta inclusiva calcada no ensino personalizado
Authors: Santos Luiz Fernando dos
Published: October 2017

Este artigo tem o objetivo de apresentar elementos para subsidiar a reflexão e o debate sobre a inclusão escolar de alunos com Transtornos do Espectro Autista (TEA). Pretende-se demonstrar que a inclusão só é viável na medida em que a escola se compromete a oferecer um ensino personalizado e diferenciado que atenda as necessidades e especificidades desses alunos. Contudo, sem abrir mão do compromisso de promover a aprendizagem e para isso, indicam-se intervenções e métodos diferenciados. A organização e seleção do conteúdo visa inserir um novo olhar do educador acerca dos TEA, procurando desmistificar esses transtornos, ao mesmo tempo em que se procura revisitar a historiografia oficial e os arcabouços legais que fundamentam a inclusão escolar.
PENGEMBANGAN E-MODUL DENGAN MODEL PROBLEM BASED LEARNING PADA MATERI BILANGAN BULAT KELAS VII
Authors: Prayudha Dwiki Rengga
Published: October 2017

Penelitian ini bertujuan untuk mengetahui keefektifan e-modul dengan model Problem Based Learning pada materi bilangan bulat kelas VII. Populasi yang digunakan adalah peserta didik kelas VII dan VIII SMP N 5 Rembang. Penulis menggunakan teknik clusster random sampling untuk menentukan sampel yang digunakan. Diperoleh kelas VII H sebagai kelas eksperimen dan kelas VII I sebagai kelas kontrol. Variabel bebas yang digunakan adalah motivasi peserta didik ( ) yang diobservasi selama proses pembelajaran, sedangkan variabel terikatnya berupa hasil belajar peserta didik ( ̂) yang diperoleh melalui tes. Berdasarkan validator ahli media dan ahli materi diperoleh persentase rata-rata sebesar 80,83% dan 84,37% hal ini menunjukkan bahwa e-modul dengan model Problem Based Learning pada materi bilangan bulat kelas VII yang dikembangkan valid dan layak untuk digunakan dalam penelitian. Hasil yang didapatkan menunjukkan rata-rata hasil belajar peserta didik adalah 82,213 yang berarti hasil belajar peserta didik sangat baik. Hasil belajar siswa kelas eksperimen lebih besar dari kelas kontrol. Motivasi peserta didik memiliki hubungan yang positif terhadap hasil belajar peserta didik dengan regresi ̂ . Hal ini menunjukkan bahwa pengembangan e-modul dengan model Problem Based Learning pada materi bilangan bulat kelas VII valid dan pembelajaran dengan e-modul dengan model Problem Based Learning pada materi bilangan bulat kelas VII efektif.
PENGEMBANGAN MODUL MATEMATIKA BERBANTU CABRI 3D DENGAN PENDEKATAN PBL (PROBLEM BASED LEARING) PADA MATERI PERSAMAAN GARIS LURUS
Authors: Agustina Dika
Published: October 2017

Latar belakang dari penelitian ini yaitu kurangnya media pembelajaran yang kreatif daninovatif pada kegiatan pembelajaran, sehingga pembelajaran menjadi monoton dan siswa bosan serta tidakmau berperan aktif dalam kegiatan pembelajaran.Metode penelitian yang digunakan dalam penelitan dan pengembangan ini adalah model ADDIE.Terdiri dari 5 tahap yaitu Analysis (Analisis), Design (Perancangan), Development (Pengembangan),Implementation (Implementasi), dan Evaluation (Evaluasi).Penelitian ini bertujuan untuk mengembangkan modul pembelajaran berbantu Cabri 3D padamateri persamaan garis lurus untuk mengetahui kevalidan serta untuk meningkatkan kemampuan pemecahanmasalah pada materi persamaan garis lurus kelas VIII semester ganjilMTs SULTAN FATTAHDemaktahunajaran 2014/2015.Dengan teknik “Cluster Random Sampling” dipilih kelas VIII A sebagai kelaseksperimen, VIII B sebagai kelas kontrol, VIII C sebagai kelas uji coba.Hasil dari uji coba didapatkan 8 soal yang digunakan sebagai soal evaluasi. Sebelum dilaksanakanevaluasi, terlebih dahulu dilakukan uji kesamaan kemampuan yaitu menganalisis hasil ulangan harian Bab Ikelas eksperimen dan kelas kontrol, didaptkan hasil bahwa kedua kelas tersebut memenuhi uji normalitasdan homogenitas.Hasil dari uji coba lapangan menunjukkan bahwa kelas ekperimen dan kelas kontrol berasal daripopulasi normal dan mempunyaivarians yang sama (homogen).Dari analisis diperoleh thitung=1,752 dan ttabeldidapatkan dari table distribusi student dengan tingakat signifikan 5%dan dk  3836 2  72diperoleh ttabel = 1,68 karena thitung>ttabel maka H0 ditolak sehingga dapatdikatakan rata-rata nilai kelas eksperimen lebih baik dari rata-rata nilai kelas control.Kesimpulan dari penelitian ini adalah Modul pembelajaran Matematika berbantu Cabri 3D layakdan efektif digunakan sebagai media pembelajaran pada materi persamaan garis lurus kelas VIII SMP.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS KONTEKSTUAL BERBANTUAN SOFTWARE CABRI 3D DAN PREZI DENGAN TEORI KONSTRUKTIVISME PADA KUBUS DAN BALOK
Authors: Istitho’ah Istitho’ah
Published: October 2017

Teknologi informasi dan komunikasi memiliki peran penting dalam pendidikan, salah satunya memungkinkan guru untuk menampilkan pembelajaran yang berbeda dengan cara mengembangkan media pembelajaran. Rendahnya prestasi belajar peserta didik pada mata pelajaran matematika menimbulkan suatu keprihatinan bagi guru. Oleh karena itu perlu dicarikan suatu solusi. Penelitian ini bertujuan (1) Untuk mengetahui cara mengembangkan media pembelajaran berbasis kontekstual berbantuan software Cabri 3D dan Prezi dengan teori konstruktivisme pada kubus dan balok yang valid atau layak digunakan sebagai media pembelajaran matematika, (2) Untuk mengetahui apakah penggunaan media pembelajaran berbasis kontekstual berbantuan software cabri 3D dan prezi dengan teori konstruktivisme lebih baik digunakan sebagai media pembelajaran matematika tingkat SMP pada materi kubus dan balok. Penelitian dilakukan di MTs Nu 19 Protomulyo Kaliwungu. Subjek penelitian adalah peserta didik kelas VIII B sebagai kelas eksperimen dan peserta didik kelas VIII C sebagai kelas kontrol. Jenis penelitian ini adalah pengembangan dengan menggunakan prosedur pengembangan model 4-D. Teknik analisis data menggunakan uji normalitas, uji homogenitas, uji t satu pihak. Hasil validasi ahli media diperoleh 86,875% dan hasil validasi ahli materi diperoleh 95,625% yang artinya Media pembelajaran berbasis kontekstual berbantuan software cabri 3D dan prezi masuk dalam kategori layak untuk diuji cobakan. Setelah dilakukan uji hipotesis menggunakan uji t pihak kanan, diperoleh nilai yaitu 3,70 > 1,671, artinya ditolak. Sedangkan hasil penelitian menunjukkan bahwa kelas eksperimen memiliki rata-rata 76,67, sedangkan pada kelas kontrol memiliki rata-rata 65,77. Maka rata-rata prestasi belajar peserta didik pada kelas eksperimen lebih baik dari pada kelas kontrol. Kesimpulannya ialah pengembangan Media pembelajaran berbasis kontekstual berbantuan software cabri 3D dan prezi dengan teori konstruktivisme yang valid atau layak digunakan sebagai media pembelajaran matematika. Sehingga Media pembelajaran berbasis kontekstual berbantuan software cabri 3D dan prezi dengan teori konstruktivisme pada kubus dan balok mencapai valid/ layak, dan prestasi belajar peserta didik dengan media pembelajaran berbasis kontekstual berbantuan software cabri 3D dan prezi dengan teori konstruktivisme lebih baik dari pada kelas yang tidak menggunakan media pembelajaran tersebut.
KEMAMPUAN MAHASISWA DALAM MENGKONSTRUKSI BUKTI BENTUK BIIMPLIKASI DITINJAU DARI TINGKAT KECEMASAN
Authors: Hadi Syaiful
Published: October 2017

Tujuan dari penelitian ini adalah untuk mendeskripsikan kemampuan mahasiswa dalam mengonstruksi bukti bentuk biimplikasi di tinjau dari tingkat kecemasan matematika (math anxiety). Jenis penelitian yang digunakan adalah penelitian deskriptif dengan pendekatan kualitatif. Berdasarkan analisis data dari kemampuan mahasiswa dalam mengonstruksi bukti bentuk biimplikasi ditinjau dari tingkat kecemasan dapat dikatakan: 1)?é?á mahasiswa dengan tingkat kecemasan tinggi dalam mengonstruksi bukti bentuk biimplikasi adalah kurang mampu memahami soal pembuktian bentuk biimplikasi dan kurang mampu mengonstruksi buktinya. 2) mahasiswa dengan tingkat kecemasan sedang adalah mampu memahami soal pembuktian bentuk biimplikasi namun kurang mampu dalam mengonstruksi buktinya. 3) mahasiswa dengan tingkat kecemasan rendah adalah mampu memahami soal pembuktian bentuk biimplikasi namun kurang mampu dalam mengonstruksi bukti.
PENGEMBANGAN MEDIA BLENDED LEARNING DENGAN MODEL FLIPPED CLASSROOM PADA MATA KULIAH PENDIDIKAN MATEMATIKA II
Authors: Prayitno Edi , Masduki Lusi Rachmiazasi
Published: October 2017

Mahasiswa universitas terbuka mayoritas telah menggunakan pembelajaran berbasis web, akan tetapi dalam web universitas terbuka belum menyajikan video pembelajaran yang dikemas secara bagus dengan di upload di menu webnya, kemudian mahasiswa FKIP jurusan pendidikan matematika dalam tutorial online belum disajikan suplemen materi berupa web tambahan yang disesuaikan dengan kebutuhan mata kuliah pendidikan matematika II. Penelitian R & D ini bertujuan untuk mengembangkan media blended learning dengan model flipped classroom. Hasil penelitian menunjukkan bahwa produk desain blended learning telah divalidasi oleh 2 orang validator ahli materi dan media dengan rata-rata validasinya 90,5 dan 92,5 artinya produk blended learning layak untuk digunakan dalam proses pembelajaran mata kuliah pendidikan matematika II di universitas terbuka, kemudian blended learning telah diterapkan dalam proses tutorial dengan mahasiswa wajib untuk membuka materi, video pembelajaran, kuis dan respon timbal balik mahasiswa dengan mahasiswa wajib membukanya di rumah masing-masing sebelum proses tutorial online.
PENGARUH PEMBELAJARAN BERBASIS MASALAH DAN DISCOVERY LEARNING TERHADAP KEMAMPUAN REPRESENTASI MATEMATIS SISWA SMP
Authors: Kusumaningsih Widya , Marta Rini Puspita
Published: October 2017

Penelitian ini bertujuan untuk menganalisis pengaruh pembelajaran berbasis masalah, discovery learning dan pembelajaran konvensional terhadap kemampuan representasi matematis pada siswa SMP. Subjek penelitian ini adalah siswa kelas VIII di SMP N 2 Mranggen. Dengan teknik Cluster Random Sampling terpilih kelas VIII E dikenai pembelajaran berbasis masalah, kelas VIII F dikenai pembelajaran discovery learning serta kelas VIII G yang dikenai pembelajaran konvensional. Desain penelitian yaitu Nonequivalent Control Group Design. Instrumen yang digunakan dalam penelitian ini adalah tes kemampuan representasi matematis. Hasil penelitian secara umum menunjukkan: (1) penggunaan pembelajaran berbasis masalah, discovery learning dan pembelajaran konvensional berpengaruh terhadap kemampuan representasi matematis siswa SMP, (2) kemampuan representasi matematis siswa SMP yang memperoleh pembelajaran berbasis masalah lebih baik dibandingkan dengan siswa yang menggunakan pembelajaran konvensional, (3) kemampuan representasi matematis siswa SMP yang memperoleh discovery learning lebih baik dibandingkan dengan siswa yang menggunakan pembelajaran konvensional.
MENUMBUHKAN SIKAP POSITIF DAN KREATIVITAS PESERTA DIDIK MELALUI MEDIA PEMBELAJARAN MAHJONG TRIGONOMETRI
Authors: Pinahayu Ek Ajeng Rahmi
Published: October 2017

Proses pembelajaran matematika yang dilaksanakan guru di kelas menjadi persoalan menarik untuk didiskusikan. Pembelajaran diharapkan dapat menumbuhkan atau meningkatkan sikap positif dan kreativitas peserta didik. Hal ini penting mengingat sikap positif terhadap matematika akan berkorelasi positif dengan prestasi belajar matematika. Selain sikap positif, kreativitas peserta didik selama proses pembelajaran berlangsung juga merupakan modal untuk membangun konsep matematika sebagai upaya meningkatkan prestasi belajar matematika peserta didik. Dengan demikian, guru hendaknya dapat menyampaikan matematika dengan cara yang menyenangkan, mudah dipahami, dan tidak membosankan bagi peserta didik. Tujuan penulisan makalah ini ialah untuk mengetahui pembelajaran yang dapat menumbuhkan sikap positif dan kreativitas peserta didik melalui media pembelajaran.Metode yang digunakan berdasarkan studi kepustakaan. Permainan matematika yang menarik, dapat dijadikan sebagai salah satu alternatif pembelajaran yang sangat memungkinkan mengubah citra matematika sebagai mata pelajaran yang kurang disenangi, menjadi pelajaran yang menantang dan disenangi oleh peserta didik. Salah satu alternatif yang dapat digunakan adalah permainan matematika di dalam kelas dengan pemanfaatan media pembelajaran. Mahjong trigonometri merupakan permainan Mahjong yang dikombinasikan dengan materi trigonometri dalam pembelajaran matematika. Penggunaan media pembelajaran Mahjong Trigonometri secara efektif dalam pembelajaran, diharapkan dapat membantu menumbuhkan sikap positif dan kreativitas peserta didik.
ВЗАЄМОЗВ’ЯЗОК ІНТЕРВАЛУ ГАЗОУТВОРЕННЯ ПОРИЗАТОРІВ І ВЛАСТИВОСТЕЙ СТІНОВОЇ КЕРАМІКИ НА ОСНОВІ ГЛИН РІЗНОЇ СПІКЛИВОСТІ
Authors: Halushka Ia. O. , Shchukina L. P. , Tsovma V. V. , Myronenko D. O.
Published: October 2017

Досліджено взаємозв’язок між властивостями поризованої кераміки і температурним інтервалом газоутворення поризаторів при їх використанні в комбінації з неспікливою і середньоспікливою глинистою сировиною. Встановлено позитивний вплив органічних добавок, які інтенсивно вигоряють до початку спікання глинистої матриці з виділенням додаткового тепла, на механічну міцність матеріалів за рахунок формування структури з більшою кількістю закритих пор у порівнянні з неорганічними добавками.
ПЕТРОЛОГІЧНИЙ АНАЛІЗ КАОЛІНІВ І ПІЩАНОГО ЗАЛИШКУ З ЙОСИПІВСЬКОГО РОДОВИЩА ДЛЯ КЕРАМІЧНОГО ВИРОБНИЦТВА
Authors: Reva V. I.
Published: October 2017

Розглянуті основні петрологічні особливості незбагачених і збагачених каолінів, жорстви та піщаного залишку Йосипівського родовища. Проведений аналіз можливості використання продуктів збагачення у технологічних процессах різних керамічних виробництв.
ОСОБЛИВОСТІ СКЛАДУ ТА ФАЗОВИХ ПЕРЕТВОРЕНЬ ПРИ ВИПАЛІ СПОНДИЛОВОЇ ГЛИНИ
Authors: Tsybenko M. Iu. , Dorohan N. O. , Cherniak L. P.
Published: October 2017

Наведені результати дослідження складу та властивостей спондилової глини як компоненту сировинної суміші для виготовлення керамічних і в’яжучих матеріалів при низькотемпературному випалі та відзначено особливості фазових перетворень.
ЭЛЕКТРИЧЕСКИЕ СВОЙСТВА КЕРАМИЧЕСКИХ И ПЛЕНОЧНЫХ МАТЕРИАЛОВ НА ОСНОВЕ SnO2-Sb
Authors: Honchar A. H. , Reva V. І. , Telnykov E. Ia. , Marchuk A. K.
Published: October 2017

Исследованы электрические и физические свойства керамики и толстых пленок на основе легированного сурьмой диоксида олова. Полученные результаты свидетельствуют о том, что электрические свойства исследованных материалов определяются процессами переноса заряда сквозь потенциальные барьеры, образованные межзеренными границами.
Introduction to the Plasma State of Matter
Authors: Adhikari B. R. , Khanal R.
Published: October 2017

Plasma is a quasineutral gas of charge and neutral particles which exhibits collective behavior. Because of its distinct behavior it is often termed as the fourth state of matter. It is of interest as it has found applications in diverse areas such as, controlled thermonuclear fusion, gas lasers, lightning, medicine, space science, electronics, etc. In this article we present an introduction to the plasma state of matter and discuss some of its applications.The Himalayan Physics Vol. 4, No. 4, 2013 Page: 60-64 Uploaded date: 12/23/2013
Thermodynamic and Transport Properties of Molten Bi-In Alloys
Authors: Singh B. P. , Singh B. K. , Jha I. S. , Shrestha G. K. , Koirala I.
Published: October 2017

We have used simple statistical theory to describe the mixing behavior of liquid Bi-In alloys in terms of energetic and structure through the study of their thermodynamic and transport properties. The structural characteristics of Bi-In melts are described by the two microscopic functions, i.e. the concentration fluctuation in long wavelength limit and the Warren-Cowley short range order parameter. The transport properties are analyzed through the diffusion coefficient ratio and viscosity. The Gibb’s free energy of mixing, enthalpy of mixing and entropy of mixing are the thermodynamic functions which are used to describe the thermodynamic behaviors. In whole analysis thermodynamic input parameter, i.e. interchange energy take important role which is temperature dependent. The computed results are in good agreement with experimental data and support a weak ordering tendency in molten Bi-In system.The Himalayan Physics Vol. 6 & 7, April 2017 (5-9)
Diurnal Variations of Total Ozone Over Kathmandu Measured by Brewer Spectrophotometer
Authors: Chapagain Narayan Prasad
Published: October 2017

This study presents the diurnal variations of atmospheric total ozone (or ozone content) measurements over Kirtipur, Kathmandu (27.67°N, 83.295°E) using a Brewer Spectrophotometer during a one-year period from February 2001 to February 2002. The measurements of ozone content were made only on daytime period. Result illustrates the significant diurnal variations of total ozone with maximum at near noon and minimum in the early morning and evening hours. The observed increase in total ozone around the noontime is about 5–10% of average ozone value. The monthly averages of total ozone for corresponding times are estimated from the selective days of good data set throughout the measurement period and then the seasonal averages of ozone for corresponding times are determined. The result clearly reveals seasonal diurnal variations of the total ozone with maximum averages values of ozone in spring and summer seasons and moderate in autumn, while minimum value in winter season.The Himalayan Physics Vol. 6 & 7, April 2017 (24-30)
Comparative investigation of two-dimensional imaging methods and X-ray tomography in the characterization of microstructure
Authors: Bacaicoa Inigo , Lütje Martin , Sälzer Philipp , Umbach Cristin , Brückner-Foit Angelika , Heim Hans-Peter , Middendorf Bernhard
Published: October 2017

The microstructural features of three different materials have been quantified by means of 2D image analysis and X-ray micro-computer tomography (CT) and the results were compared to determine the reliability of the 2D analysis in the material characterization. The 3D quantification of shrinkage pores and Fe-rich inclusions of an Al-Si-Cu alloy by X-ray tomography was compared with the statistical analysis of the 2D metallographic pictures and a significant difference in the results was found due to the complex morphology of shrinkage pores and Fe-rich particles. Furthermore, wood particles of a wood-plastic composite were measured by dynamic image analysis and X-ray tomography. Similar results were obtained for the maximum length of the particles, although the results of width differ considerably, which leads to a miscalculation of the particles aspect ratio. Finally, air voids of a foam concrete were investigated by the analysis of the 2D pictures in ImageJ and the results of the 2D circularity were compared with the values of the 3D elongation obtained by micro-computed tomography. The 3D analysis of the air voids in the foam concrete showed a more precise description of the morphology, although the 2D result are in good agreement with the results obtained by X-ray micro-tomography.
Statistical analysis of weld bead geometry in Ti6Al4V laser cladding
Authors: Marko Angelina , Graf Benjamin , Rethmeier Michael
Published: October 2017

The process of laser cladding has become more important during recent years because of its broad application for cladding, repair or additive manufacturing. In the field of mechanical engineering, one use is the repair of turbine blades. For high quality and reliability of the repaired components, it is necessary to adjust the weld bead geometry to the specific repair task. The bead geometry influences the metallurgical bonding and the degree of dilution as well as the formation of defects like pores or cracks. Therefore, it is important to know the effects of the different parameters on the welding bead. A valuable tool to meet this industrial challenge is the design of experiments (DoE). In this context, the user can choose between a huge number of test plans. Greater profit of information is expected by a larger test range. In order to confirm the acceptance, a five-step full factorial test plan is compared to a central composite design in this paper. Moreover, the limits of the experimental range are indicated and restrictions can be derived. As the results show, the essential effects are detected with a full factorial test plan as well as with a central composite design. Merely the effect strength could not always be specified unambiguously. On this account and in consideration of cost efficiency, the use of central compound design is recommended in industrial applications.
Experimental investigation of fiber reinforced composite leaf springs
Authors: Koçhan Cemal , Belevi Melih
Published: October 2017

The aim of this study is to experimentally investigate fiber reinforced polymeric composite leaf springs which could be used in a light commercial vehicle instead of a double steel leaf spring. E-glass/epoxy, carbon/epoxy and E-glass-carbon/epoxy flat leaf springs were produced by vacuum assisted resin transfer molding (VARTM) method with specially designed mold. Experimental results show that spring rates were 91.4, 98.4 and 97.1 N × mm−1 for carbon/epoxy, E-glass/epoxy and E-glass-carbon/epoxy leaf springs, respectively. Fatigue tests indicate that the carbon/epoxy leaf springs have the longest average usage life with approximately 89 % weight reduction, although E-glass/epoxy ones satisfy the minimum usage life requirements with higher load carrying capacity with 82 % weight reduction.
Comparison of three methods for determining Vickers hardness by instrumented indentation testing
Authors: Wang Jialiang
Published: October 2017

To address the problem of poor accuracy associated with using instrumented indentation tests to determine Vickers hardness, and the problem of selection of the most appropriate instrumented indentation approach, the finite element method was adopted to determine theoretical Vickers hardness values of different materials. On the basis of these theoretical values, a theoretical accuracy analysis of three representative methods was conducted for determining Vickers hardness via instrumented indentation: ISO method, Kang method and Ma method. Moreover, the results of the analysis were experimentally verified. The results show that with increasing ratio between the unloading work We and total unloading work Wt (i. e., We/Wt), the theoretical error of Vickers hardness determined using each of the investigated instrumented indentation methods initially decreases and then increases. Compared to the other two instrumented indentation methods, the Ma method gave the lowest theoretical error of Vickers hardness. When the We/Wt ratio ranged from 0.01 to 0.3, with different values of the plane strain elastic modulus ratio η and strain-hardening ratio n, the errors of Vickers hardness determined using each of the investigated methods were all discrete. By contrast, when We/Wt ranged from 0.3 to 0.81, the errors were relatively concentrated. This work provides a theoretical basis for the further study of new methods for determining Vickers hardness via instrumented indentation testing.
Application of a clay-slag geopolymer matrix for repairing damaged concrete: Laboratory and industrial-scale experiments
Authors: Perná Ivana , Hanzlíček Tomáš , Boura Patrik , Lučaník Adam
Published: October 2017

Blast-furnace slag, a remnant of the old iron production, was used for a preparation of a clay-slag geopolymer which was applied to old concrete surface. An interface investigation by scan electron microscopy (SEM) confirmed the hypothesis that a clay-slag geopolymer can be used for repairing concrete. Based on the laboratory experiments, a highly damaged and contaminated old concrete floor with potholes ranging from 2 mm to 20 cm, located in metal manufacturing industrial plant, has been repaired overnight by a clay-slag geopolymer matrix (ratio of 1 : 0.5) filled with sand and pebbles (the total content of 70 wt.-%). This industrial-scale experiment has proven that geopolymers are suitable for damaged concrete repair and the daily rush in heavy industrial conditions has confirmed the resistance and surface hardness of the geopolymer mixture used. The article documents the original state of the floor, its state after eight hours and also two and four years later.
Characterization of adhesively bonded high strength steel surfaces treated with grit blasting and self-indicating pretreatment (SIP) adhesion mediator
Authors: Anagreh Nabil , Dweiri Radwan , Masadeh Sami
Published: October 2017

This work aimed at investigating the adhesion behavior of high strength steels (dual phase steel of grade DP 600 and microalloyed steel of grade ZStE340) which were glued with epoxy and polyurethane adhesives. To improve the adhesion strength of the steel surfaces, the surfaces were treated with three different methods: grit blasting with corundum or duroplast, self-indicating pretreatment (SIP) adhesion mediator, or a combination of grit blasting and SIP. The samples were aged in hot climate for 25 days. SEM investigations showed that the surface roughness values were significantly increased after grit blasting. Using EDX analysis, the surface of DP 600 steel after grit blasting indicated that the zinc concentration on the surface was clearly decreased, obviously in case of duroplast blasting. Whereas, the surface of ZStE340 steel after grit blasting showed that the carbon concentration was decreased. Adhesion strength of the samples in their fresh condition is dependent on adhesive type, steel grade and pretreatment method. SIP treatment was found to have a positive impact on the adhesion strength of the DP 600 steel regardless the type of adhesive. The effect of grit blasting on adhesion strength was more pronounced in case of ZStE340 steel. Generally, the adhesion strength of the aged DP 600 or ZStE340 samples was slightly decreased, with some exceptions confined to ZStE340 glued with EP 3 which showed an increase in the aging strength. The fracture surfaces of all samples were also examined in this work by naked eye and SEM.
Phase formation in alloy-type anode materials in the quaternary system Li–Sn–Si–C
Authors: Drüe Martin , Liang Song-Mao , Seyring Martin , Kozlov Artem , Song Xiaoyan , Rettenmayr Markus , Schmid-Fetzer Rainer
Published: October 2017

Investigations on the thermodynamics of alloy-type anode materials have been carried out for the quaternary Li–C–Si–Sn system. Phase equilibria and phase stabilities were characterized in the binary subsystems Li–C, Li–Si, Li–Sn. The Calphad method was first used to optimize or completely re-establish all binary subsystems containing Li. For reasons of consistency, the binary subsystem Si–C had to be revisited and its Calphad description was modified. The ternary phase diagrams were then tentatively calculated by extrapolation from the binary subsystems and confirmed by key experiments. No ternary compounds were found. In order to verify the applicability of the anode materials in real batteries, some of the materials were nanostructured by ball milling and spark plasma sintering, the corresponding nanostructures were characterized. Theoretical predictions that nanograined Li2C2 can also be used as cathode material were verified experimentally. The methodologies worked out in the present project (e. g. nanoscale structure transmission electron microscopy analysis, glow discharge optical emission spectroscopy) were also employed in other projects and led to publications concerning other materials such as Mg alloys, carbon nanofibers and an Mn-based antiperovskite.
Effect of flow, heat transfer and magnetic energy on the grain refinement of 7A04 alloy under electromagnetic pulse
Authors: Bai Qingwei , Ma Yonglin , Xing Shuqing , Bao Xinyu , Feng Yanfei , Yu Wenxia , Kang Xiaolan
Published: October 2017

In this paper, a transient numerical simulation method was used to analyze the direct chill casting process of 7A04 alloy under electromagnetic pulse treatment. The distribution and evolution of the electromagnetic force, fluid and thermal fields were studied to determine their effect on the solidification characteristics of alloy ingots. A modified nucleation theory for the refinement of grain size was presented considering the effect of electromagnetic energy on the critical Gibbs free energy

Δ

G
*

$\Delta {G^*}$

of the unity, which was verified by the corresponding experiments. The results showed that the swirl rings of the axial section in the melt were restrained and a lower temperature gradient was formed in the radial section when the magnetic flux intensity was increased. Under these conditions for nucleation, the grain refinement could be explained by the electromagnetic pulse energy that reduced the energy barrier and improved the nucleation rate, either heterogeneous nucleation or homogeneous nucleation.