bluuebunny/crossref_metadata_2025_split huggingface dataset:
IMMUNOMODULATORY, ANTICANCEROUS & ANTIOXIDANTACTIVITIES OF CYCLEA PELTATA (LAM.) HOOK.F. & THOMSON
Authors: JAYARAMAN SONY , VARIYAR E. JAYADEVI 
Published: October 2019

Introduction: Cyclea peltata (Lam.) Hook.f. & Thomson is an important plant listed in Ayurveda. The plants are used in digestive, diuretic and inflammatory disorders.
Aim: The present study was to study the immunomodulatory, anticancerous and antioxidative properties of the fraction isolated from Cyclea peltata.
Methods: The immunomodulatory activity was evaluated in lymphocytes and THP-1 macrophage cell lines. The anticancer activity of the fraction was determined by MTT assay. The antioxidant activity was evaluated by DPPH and total antioxidant assays.
Results: The fraction showed the presence of flavanoids which induced lymphocyte proliferation and also could induce nitrite production in THP-1 cell lines at 1mg/ml. It also exhibited good anticancerous activity at 100 μg/ml after 48h of incubation. The antioxidant activity was less at this concentration and was found to be equivalent to 79± 0.03 μg/ml of ascorbic acid.
Conclusion: The fraction containing flavonoid, isolated from Cyclea peltata have shown to have good immunomodulatory, antioxidant and anticancerous property.
DEVELOPING THE ABILITY OF ELEMENTARY STUDENTS METAPHORICAL THINKING THE CITARUM THROUGH THE REALISTIC MATHEMATICS EDUCATION APPROACH
Authors: Murni Sukma , Rabbani Sylvia 
Published: October 2019

This study aims to determine the development of mathematical Metaphorical Thinking capabilities of Bantaran Citarum Elementary School students through a Realistic Mathematics Education (RME) approach better than those using ordinary learning. The method used in this study was a quasi-experimental method carried out in one of the elementary schools in Dayeuh Kolot Subdistrict, Bandung Regency. Data collection uses the results of pretest and posttest mathematical Metaphorical Thinking abilities. To get the research data, the instrument was used in the form of a mathematical Metaphorical Thinking ability test. Data analysis is done quantitatively, quantitative analysis is carried out on the ability of Metaphorical Thinking. In calculating data processing using Microsoft Excel and SPSS 23. The results showed that the development of mathematical Metaphorical Thinking capabilities which learning using the RME approach was better than those using ordinary learning. Keywords: Metaphorical Thinking, Realistic Mathematics Education.
Finite Element Method Linear Triangular Element for Solving Nanoscale InAs⁄GaAs Quantum Ring Structures
Authors: Hussain Eman Ali , Al-Hawasy Jamil A. , Ali Lamyaa Hussein 
Published: October 2019

This paper concerned with the solution of the nanoscale structures consisting of the with an effective mass envelope function theory, the electronic states of the quantum ring are studied. In calculations, the effects due to the different effective masses of electrons in and out the rings are included. The energy levels of the electron are calculated in the different shapes of rings, i.e., that the inner radius of rings sensitively change the electronic states. The energy levels of the electron are not sensitively dependent on the outer radius for large rings. The structures of quantum rings are studied by the one electronic band Hamiltonian effective mass approximation, the energy- and position-dependent on electron effective mass approximation, and the spin-dependent on the Ben Daniel-Duke boundary conditions. In the description of the Hamiltonian matrix elements, the Finite elements method with different base linear triangular element is adopted. The non-linear energy confinement problem is solved approximately by using the Finite elements method with linear triangular element, to calculate the energy of the electron states for the quantum ring.
ANALISIS IMPLEMENTASI PEMBELAJARAN KIMIA DALAM PROGRAM FULL DAY SCHOOL
Authors: Elyadi I Ketut Bandem , Subagia I Wayan , Maryam Siti 
Published: October 2019

ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan dan menjelaskan pendekatan, metode, model pembelajaran, sumber belajar yang digunakan, dan distribusi waktu belajar siswa dalam program full day school di SMA Negeri Bali Mandara. Subjek dalam penelitian ini adalah RPP, penjadwalan pembelajaran kimia, guru, dan siswa. Metode yang digunakan dalam pengumpulan data adalah observasi, studi dokumen, dan wawancara. Data disajikan dengan deskriptif kualitatif. Hasil penelitian ini adalah sebagai berikut. (1) Pendekatan pembelajaran yang digunakan dalam program full day school di SMA Negeri Bali Mandara, yaitu pendekatan saintifik. (2) Metode pembelajaran yang digunakan, yaitu tanya jawab, diskusi, presentasi, penugasan, dan praktikum. (3) Model pembelajaran yang digunakan, yaitu inkuiri terbimbing, discovery learning, dan problem based learning. (4) Sumber belajar yang digunakan, yaitu buku paket kimia, internet, video dan e-learning. (5) Waktu pembelajaran kimia dominan dialokasikan pada pagi hari. Implementasi pembelajaran kimia dalam program full day school belum berjalan sesuai dengan kurikulum 2013. Kata kunci: pembelajaran kimia, program full day school, SMA Negeri Bali Mandara. ABSTRACT This research aimed to describe and explain the the approaches, methods, learning models, learning resources used, and the distribution of student learning time in the full day school program at Bali Mandara High School. The subjects in this study were lesson plans, scheduling of learning chemistry, teachers, and students. The methods used in data collection are observation, document study, and interview. Data presented with descriptive qualitative. The results of this study are as follows. (1) The learning approach used in the full day school program at Bali Mandara State High School is a scientific approach. (2) Learning methods used, namely question and answer, discussion, presentation, assignment, and practicum. (3) The learning model used, namely guided inquiry, discovery learning, and problem based learning. (4) Learning resources used, namely chemistry textbooks, the internet, video and e-learning. (5) The dominant chemical learning time is allocated in the morning. The implementation of chemistry learning in the full day school program has not run according to the 2013 curriculum. Keywords: chemistry learning, full day school program, Bali Mandara High School.
PELAKSANAAN PEMBELAJARAN REMEDIAL MATA PELAJARAN KIMIA
Authors: Apriliani P. N. , Sudiana I. K. , Wiratini N. M. 
Published: October 2019

AbstrakPenelitian ini bertujuan untuk mendeskripsikan dan menjelaskan pelaksanaan pembelajaran remedial mata pelajaran kimia di SMA Negeri 2 Singaraja. Penelitian ini adalah jenis penelitian fenomenologi dengan pendekatan kualitatif. Subjek dalam penelitian ini adalah guru kimia, wakil kepala sekolah bidang kurikulum dan siswa kelas X dan XI MIPA. Metode pengumpulan data pada penelitian ini adalah observasi, wawancara dan studi dokumen. Aktivitas yang diteliti terkait pelaksanaan pembelajaran remedial kimia. Teknik keabsahan data dalam penelitian ini menggunakan triangulasi sumber dan metode. Data dianalisis menggunakan teknik kualitatif deskriptif. Hasil penelitian ini menunjukkan bahwa (1) guru kimia menyusun perencanaan pembelajaran remedial dengan menentukan waktu, metode, dan tujuan pembelajaran remedial kimia, (2) pelaksanaan pembelajaran remedial kimia dilaksanakan pada penilaian harian (PH) dan penilaian akhir tahun (PAT) sedangkan pada penilaian tengah semester (PTS) tidak dilaksanakan, dan (3) penilaian pembelajaran remedial yang diberikan kepada siswa setelah mengikuti remedial pada PH dan PAT tidak melebihi nilai KKM yang telah ditetapkan. Kata kunci: evaluasi hasil belajar, KKM, pembelajaran remedial AbstractThis study aimed to describe and explain the implementation of chemistry subject of remedial learning in SMA Negeri 2 Singaraja. This research was a type of phenomenological research in which it belong to a qualitative approach. The subjects in this study were chemistry teachers, vice principals in the curriculum field and students of class X and XI MIPA. The data collection methods which used in this study were observation, interviews and document studies. The technique of checking the validity of the data in this study used source and method of triangulation. The data of this research were analyzed using descriptive qualitative techniques. The results of this study indicated that, (1) the chemistry teacher prepared the remedial learning plan by determining the time, method and purpose of the remedial learning chemistry, (2) the implementation of chemical remedial learning carried out on daily assessment (PH) and final assessment (PAT) while in the middle test (PTS) is not implemented, and (3) the assessment of remedial learning obtained by students after participating in remedial which did not exceed the passing grade criteria (KKM) score that has been set. Keywords: evaluation of learning outcomes, KKM, remedial learning
ANALISIS PELAKSANAAN PRAKTIKUM KIMIA
Authors: Damayanti N. K.A. , Maryam S. , Subagia I. W. 
Published: October 2019

ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan dan menjelaskan (1) topik/materi praktikum kimia yang dilaksanakan dalam pembelajaran kimia; (2) pelaksanaan praktikum kimia; dan (3) faktor-faktor yang memengaruhi pelaksanaan praktikum kimia di SMA Negeri 3 Singaraja. Penelitian ini merupakan penelitian kualitatif dengan menggunakan pendekatan fenomenologi. Subjek penelitian ini adalah guru kimia, kepala laboratorium, dan siswa. Teknik pengumpulan data yang digunakan adalah studi dokumen, observasi, dan wawancara. Hasil penelitian ini adalah (1) Topik/materi praktikum kimia yang direncanakan oleh guru kimia di SMA Negeri 3 Singaraja tidak semua dapat dilaksanakan. Pada kelas X dilaksanakan dua topik/materi praktikum kimia dari tiga topik/materi yang direncanakan. Pada kelas XI dilaksanakan lima topik/materi praktikum kimia dari sembilan topik yang direncanakan. Pada kelas XII dilaksanakan satu topik/materi praktikum kimia dari empat topik/materi praktikum kimia yang direncanakan. (2) Pelaksanaan praktikum kimia di SMA Negeri 3 Singaraja dilaksanakan secara berkelompok dan dibimbing oleh guru kimia. (3) Faktor-faktor yang memengaruhi pelaksanaan praktikum kimia di SMA Negeri 3 Singaraja yaitu kesiapan guru dan siswa untuk melaksanakan praktikum kimia, laboratorium kimia, alat dan bahan praktikum, waktu pembelajaran, serta laboran. Kata kunci: analisis, pelaksanaan praktikum kimia, SMA Negeri 3 Singaraja. ABSTRACTThis research aimed to describe and explain (1) the practicum topic conducted in chemistry learning; (2) the implementation of chemistry practicum; and (3) factors that influence the implementation of chemistry practicum in SMA Negeri 3 Singaraja. The research was a qualitative research with a phenomenology approach. The subjects of this research were chemistry teachers, laboratory head, and students. The data collection techniques used in this research were document studies, observations, and interviews. The results of this research are (1) the chemistry practicum topic planned by four teachers’ chemistry in SMA Negeri 3 Singaraja is not all workable. In the tenth grade two chemistry practicum topics were hold out of three planned topics. In the eleventh grade five chemistry practicum topic were hold out of nine planned topics. In the twelfth grade hold one chemistry practicum topics of four planned topics. (2) Chemistry practicum in SMA Negeri 3 Singaraja was carried out by groups and guided by chemistry teacher. (3) Factors influencing the implementation of practicum chemistry in SMA Negeri 3 Singaraja were teachers and students’ readiness, chemistry laboratory, tools and practicum material, learning time, and laboratory assistant. Key words: analysis, implementation chemistry practicum, SMA Negeri 3 Singaraja
PENGEMBANGAN LEMBAR KERJA SISWA (LKS) DENGAN MODEL DISCOVERY LEARNING PADA POKOK BAHASAN TITRASI ASAM BASA
Authors: Rahma F. M. , Tika I N. , Karyasa I W. 
Published: October 2019

ABSTRAKPenelitian ini bertujuan untuk: (1) mendeskripsikan karakteristik, (2) validitas, dan (3) keterbacaan Lembar Kerja Siswa (LKS) dengan model dscovery learning pada pokok bahasan titrasi asam basa. Jenis penelitian ini adalah penelitian pengembangan dengan tahapan penelitian yang diadaptasi oleh Sugiyono. Tahap penelitian yang dilakukan adalah pengumpulan data, desain produk, validasi desain, revisi desain, uji coba lapangan terbatas, dan revisi produk. LKS yang dikembangkan terdiri dari dua subtopik bahasan yaitu titrasi asam basa dan kurva titrasi. Karakteristik LKS dengan model discovery learning pada pokok bahasan titrasi asam basa, yaitu (1) menggunakan sintak discovery learning dan (2) menyajikan fenomena/gambar yang spesifik. Validasi LKS melibatkan satu orang ahli isi, satu orang ahli desain dan media pembelajaran, satu orang ahli bahasa, dan satu orang praktisi. Uji coba terbatas melibatkan 9 siswa kelas XI SMAN 2 Negara. Hasil validasi menunjukkan bahwa LKS yang dikembangkan telah memenuhi kategori valid. Berdasarkan hasil uji keterbacaan oleh siswa diperoleh tingkat keterbacaan yang baik. Kata kunci: discovery learning, lembar kerja siswa, titrasi asam basa. ABSTRACT This study aimed to (1) describe the characteristics, (2) the validity, and (3) the readability of Student Worksheets (LKS) with discovery learning models in the acid base titration topic. This type of research is research and development with the research stages adapted by Sugiyono. The stages of the research conducted are data collection, product design, design validation, design revision, limited field trials, and product revisions. The developed worksheet consisted of two subtopics, namely acid base titration and titration curve. Characteristics of LKS with discovery learning models in the acid base titration topic, namely (1) using discovery learning syntax and (2) presenting a specific phenomenon/image. LKS validation involves one content expert, one design and learning media expert, one linguist, and one practitioner. Limited trials involving 9 students of class XI of SMAN 2 Negara. The validation results show that the developed LKS has meets the valid category. Based on the results of the readability test by students obtained a good level. Keywords: acid base titration, discovery learning student worksheets.
Entre omissão e preconceito racial: discurso-acontecimento
Authors: Lobo Dalva de Souza , Villarta-Neder Marco Antonio , Ferreira Helena Maria 
Published: October 2019

O presente artigo tem por objetivo problematizar a proposição/implementação de currículos que abordem as relações étnico-raciais em cursos de professores de língua portuguesa. Nessa direção, a partir de pressupostos epistemológicos do campo bakhtiniano, buscamos defender que a concepção tradicional como um conjunto de disciplinas, conteúdos e atividades não consegue contemplar dimensões que abarquem as interações estabelecidas para que a aprendizagem em uma perspectiva crítica se efetive. Assim, considerando o contexto formativo de um curso de licenciatura em Letras, em que o objeto de estudo é o texto-enunciado, uma abordagem discursiva pode favorecer processos de ensino-aprendizagem que impliquem o sujeito e promovam a ressignificação de princípios axiológicos relacionados às questões de raça/racismo. Para a consecução deste trabalho, partimos de uma apresentação de pressupostos epistemológicos defendidos pelo Círculo de Bakhtin, com vistas a evidenciar a relevância de um currículo que contemple uma perspectiva dialógica. Para ilustrar a discussão dos pressupostos epistemológicos, utilizamos alguns excertos de atividades realizadas por alunos de graduação em um curso de extensão que teve por objetivo explorar questões relacionadas à (des)igualdade racial. A partir das discussões empreendidas, procuramos demonstrar que uma formação profissional para a docência demanda não somente a seleção de conteúdos e atividades, mas também, atos responsivos para a constituição de sujeitos éticos e sensíveis às demandas da sociedade. Palavras-chave: Currículo. Relações étnico-raciais. Círculo de Bakhtin.
(Des)encontros para um currículo afrocentrado no ensino de língua portuguesa na educação profissional técnica de nível médio integrada ao Ensino Médio
Authors: Santos Mariana Fernandes dos , Valadares Flavio Biasutti , Macedo Yuri Miguel 
Published: October 2019

Os processos de construção dos currículos na educação brasileira, historicamente, têm como referência o centralismo epistemológico eurocêntrico e ocidental institucionalizado e naturalizado desconsiderando as diferenças culturais. No que concerne ao currículo da língua portuguesa nos diversos níveis de ensino, predomina o monolinguismo, monoculturalismo, referência literária colonialista, protagonismo de apenas uma etnia, purismo linguístico, entre outros aspectos que ocasionaram o racismo cultural, instaurando a normatização e limitação de sentidos e significados das práticas linguageiras no ensino de língua portuguesa na educação básica. Diante disso, vemos a importância de problematizações em torno dessa realidade, em especial, quando se trata da educação básica profissional (Ensino Médio Integrado ao Técnico), considerando a necessidade do enfrentamento que há contra as práticas educativas tecnicistas, consolidadas em muitas das instituições que ofertam esses cursos. Nessa perspectiva, neste artigo, nos ocupamos do objetivo de analisar como se constitui o currículo de Língua portuguesa (LP) no curso Ensino Médio Integrado ao Técnico em Informática do Instituto Federal de Educação, Ciência e Tecnologia da Bahia (IFBA), Campus Eunápolis, em relação à promoção da igualdade racial, tendo como referenciais teórico-metodológicos os estudos de base intercultural e de(s) colonial. Os resultados demonstram que o currículo de LP estudado não contempla nem mesmo o marco legal para promoção da igualdade racial. Nesse aspecto, ressaltamos a necessidade constante de problematizar os currículos escolares, considerando o paradigma da afrocentricidade como um caminho para via intercultural, de descolonização epistemológica, de descentralidade colonial e, ao mesmo tempo, a proposição de outras formas de vivências com as diferenças culturais. Palavras-chave: Ensino de Língua Portuguesa. Descolonialidades. Afrocentricidade.
Participação de estudantes com síndrome de down nas aulas de educação física
Authors: Teixeira Amanda Machado , Bergmann Mauren Lúcia de Araújo , Copetti Jaqueline 
Published: October 2019

Este estudo tem como objetivo verificar se os estudantes com Síndrome de Down de um município da Fronteira oeste do RS participam das aulas de Educação Física, descrevendo como ocorre esta participação, e de que forma os pais/responsáveis e os professores de Educação Física desses alunos entendem e contribuem para o processo inclusivo dos mesmos, nas aulas de Educação Física escolar. Para tanto, participaram do estudo quatro estudantes com Síndrome de Down de duas escolas públicas e uma privada, quatro pais/responsáveis e três professoras de Educação Física. Foram realizadas entrevistas semiestruturadas com todos os participantes do estudo, bem como, empregada observação sistemática das aulas, de forma direta e não participante, para aqueles estudantes que participavam das aulas de Educação Física. Verificou-se que apenas duas estudantes, matriculadas em instituição privada de ensino, frequentam as aulas de Educação Física, mas essa participação não ocorre de forma efetiva. Ainda, identificou-se que a abordagem do professor de Educação Física e a escolha dos conteúdos, contribuem para a não participação do estudante com Síndrome de Down nas aulas de Educação Física escolar. Frente à realidade encontrada, percebe-se que ainda existem muitas barreiras para que a participação de estudantes com Síndrome de Down nas aulas de Educação Física aconteça de forma efetiva. Palavras-chave: Educação Física escolar. Síndrome de Down. Educação Inclusiva.
A matemática nos cursos de ciências no sul do Mato Grosso UNO
Authors: Gonzales Kátia Guerchi , Silva Carla Regina Mariano da , Garnica Antonio Vicente Marafioti 
Published: October 2019

Neste artigo, nosso propósito é analisar aspectos de como a Matemática se configurava nos cursos de Ciências que, no sul do Mato Grosso Uno, tinham por finalidade formar professores. Para a discussão, recorremos às compreensões resultantes de duas teses de Doutorado, uma das quais, tematiza as Licenciaturas em Ciências e em Matemática, no estado de Mato Grosso do Sul, nos campus da UEMT – Universidade Estadual de Mato Grosso e da FADAFI - Faculdade de Filosofia Dom Aquino, em torno da década de 1970; enquanto a outra estuda as Licenciaturas Parceladas de Ciências e as Licenciaturas em Regime Parcelado de Ciências – Habilitação em Matemática, implantadas, respectivamente, nas décadas de 1970 pela UEMT, e em 1990 pela UFMS – Universidade Federal de Mato Grosso do Sul. O estudo dessas produções considera o sul do Mato Grosso Uno e sua realidade sociocultural e política, permitindo observar, dentre uma pluralidade de subtemas de discussões, a Matemática presente nessas modalidades de formação de professores. Ressaltamos, assim, que as disciplinas relativas à Matemática, nessas distintas modalidades de ensino, seguiam praticamente as mesmas disposições e pressupostos e, com uma mesma nomenclatura e carga horária, eram efetivadas de modos muito distintos nos processos de formação. Palavras-chave: Formação de professores de Matemática. Mato Grosso Uno. Professores Leigos.
Theory and practice: between dichotomies and relations in the formation of English teachers
Authors: Boa Sorte Paulo , Silva Nayara Stefanie Mandarino 
Published: October 2019

Many teachers in pre-service programs see knowledge about approaches, methods, and English teaching techniques – formulated and disseminated by specialists – as distant from reality or impossible to be developed. In order to understand better this problem, this research aims to analyze what is meant by the terms "theory" and "practice" and the possible relationships between them in the context of pre-service English teachers’ development. From that point of view, it may be observed new and/or different views about how teachers are formed and how much this formation has prioritized contact with theories, practices, and their relationships. The theoretical bases are Freire ([1968] 2011), Rajagopalan (1984), Pereira (1988), Kincheloe (1997), Japiassu & Marcondes (2001), Pennycook (2010) and Vieira-Abrahão (2010). Data was collected through semi-structured interviews (Lüdke and André, 1996; RIZZINI, 1999). The results indicate that student teachers understand these conceptions as opposites and that, in many cases, these concepts are not completed or are difficult to complete, rejecting them as a unity. Keywords: Theory. Practice. Teacher Development.