bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pemahaman konsep IPA siswa SMP melalui pembelajaran problem solving pada topik perubahan benda-benda di sekitar kita
Authors: Sadiqin Ikhwan Khairu , Santoso Uripto Trisno , Sholahuddin Arif 
Published: October 2017

Telah dilakukan penelitian untuk mendeskripsikan pemahaman konsep IPA siswa SMP melalui pembelajaran problem solving. Teknik pemilihan sampel dilakukan secara purposive sampling. Subyek penelitian ini adalah siswa kelas VII berjumlah 66 orang. Data penelitian diperoleh menggunakan instrumen tes. Teknik analisis data dengan cara melihat perkembangan n-gain. Hasil penelitian diperoleh rata-rata pemahaman konsep siswa sebelum pembelajaran adalah 52,28 tergolong kategori kurang baik. Skor setelah pembelajaran adalah 77,40 tergolong kategori baik. Model problem solving sesuai untuk pembelajarain sains sekolah menengah pertama dan dapat mendorong siswa untuk membangun pemahaman konsep. Terjadi konstruksi pemahaman konsep siswa melalui proses menghubungkan pengetahuan dalam menyelesaikan masalah pembelajaran.Kata kunci: problem solving, pemahaman konsep, pengetahuan deklaratif, pengetahuan prosedural, perubahan benda-benda di sekitar kita. Junior High School Students’ Understanding of the Science Concept Through Problem Solving Learning on the Topic of Change Things Around our Life AbstractResearch was conducted to describe the results of student learning through problem solving model. Sampling was done by purposive sampling. Subjects are 66 students of class VII. Data were obtained using paper based test. Data analysis techniques by observing the development of n-gain. This study showed that student understanding of pretest is 52,28 point categorized as low and posttest is 77,40 point categorized as good. It mean that the problem solving model suitable to the junior high school science class and encourage students to constantly build understanding of the concept. Construction of the concept through the process of connecting knowledge in solving learning problems.Keywords: problem solving, conceptual understanding, declarative knowledge, procedural knowledge, changes things around us.
Pengembangan Bahan Ajar IPA Terintegrasi Nilai Islam untuk Meningkatkan Sikap dan Prestasi Belajar IPA Siswa
Authors: Susilowati Susilowati 
Published: October 2017

Penelitian ini bertujuan untuk menghasilkan bahan ajar IPA yang terintegrasi nilai Islam, mengetahui kelayakan dan keefektifan bahan ajar yang dikembangkan untuk meningkatkan sikap dan prestasi belajar IPA. Sikap terdiri dari sikap religi dan sikap positif terhadap IPA. Metode yang digunakan dalam penelitian ini adalah Research and Development (R&D) yang dikembangkan oleh Borg & Gall. Teknik analisis data menggunakan gain score, independent t test, dan uji MANOVA. Bahan ajar dalam bentuk buku siswa MTs dan buku guru MTs. Penilaian produk buku siswa MTs menurut ahli materi dan ahli media berkategori “sangat baik”. Buku guru MTs menurut ahli materi berkategori “baik” dan menurut ahli media berkategori “sangat baik”. Pembelajaran dengan menggunakan buku siswa MTs menunjukkan sikap religi meningkat tinggi (rerata gain score adalah 0,70), sikap positif terhadap IPA meningkat sedang (rerata gain score adalah 0,57), dan prestasi belajar IPA meningkat sedang (rerata gain score adalah 0,55).Kata Kunci: bahan ajar, buku siswa MTs, buku guru MTs, sikap, prestasi belajar Developing of Instructional Materials for Science Integrated with Islamic Values for Increasing Attitudes and Science Learning Achievement AbstractThe aims of the research was to develop instructional materials for science integrated with Islamic values, to determine the appropriateness and the effectiveness of the developed product for increasing attitudes and science learning achievement. Attitudes is consist of religious attitudes and positive attitudes toward science. This research is Research and Development (R & D) using Borg & Gall model. Data analysis techniques using gain score, independent t-test, and MANOVA test. Instructional materials in the form of MTs student books and MTs teacher books. Product assessment of the MTs student books according to matter experts and media experts are categorized “very well”. The MTs teacher books according to matter experts are categorized “good”, and according to media experts is categorized “very well”. Learning to use student books showed that religious attitudes have risen high (the mean gain score is 0.70), positive attitudes towards science have risen middle (the mean gain score is 0.57), and science learning achievement have risen middle (the mean gain score is 0.55).Keywords: instructional material, MTs student books, MTs teacher books, attitudes, science learning achievement
Pengaruh model collaborative learning terhadap peningkatan motivasi dan hasil belajar IPA siswa kelas IV SD
Authors: Primadiati Ika Dewi , Djukri Djukri 
Published: October 2017

Penelitian ini bertujuan untuk mendeskripsikan pengaruh penerapan model collaborative learning terhadap motivasi dan hasil belajar siswa pada mata pelajaran IPA SD Negeri se-Gugus I Caturtunggal. Penelitian ini merupakan penelitian kuasi eksperimen dengan rancangan pretest-posttest control design. Hasil penelitian menunjukkan bahwa model collaborative learning berpengaruh positif dan signifikan terhadap peningkatan hasil belajar dan motivasi siswa pada mata pelajaran IPA daripada menggunakan model cooperative script. Hasil analisis uji beda hasil belajar siswa antara kelompok kontrol dengan kelompok eksperimen 1 diperoleh perbedaan rata-rata sebesar 4,51. Hasil analisis uji beda motivasi belajar siswa antara kelompok kontrol dengan kelompok eksperimen diperoleh perbedaan rata-rata sebesar 4,76. Hasil analisis uji beda hasil belajar siswa antara kelompok kontrol dengan kelompok eksperimen 2 diperoleh perbedaan rata-rata sebesar 1,19. Hasil analisis uji beda motivasi belajar siswa antara kelompok kontrol dengan kelompok eksperimen 2 diperoleh perbedaan rata-rata sebesar 2,68. Hasil penelitian maka dapat disimpulkan bahwa penerapan model collaborative learning dapat digunakan siswa pada pembelajaran IPA SD untuk meningkatkan motivasi dan hasil belajar siswa.Kata Kunci: collaborative learning, motivasi, dan hasil belajar The effects of collaborative learning model on increasing student’s motivation and achievement of the fourth grade of elementary schoolAbstractThis research aimed to describe the effects of collaborative learning model to increase motivation and achievement of the fourth grade students of Elementary School se-Gugus I Caturtunggal. This research was a quasi-experimental study using the pretest-posttest control design. The results of the research show that the model of collaborative learning has more positive and significant effects on the increasing of student’s motivation and achievement on science subjects than using a cooperative script model. The analysis results show a different increasing of student’s motivation and achievement between the control group and the experimental group 1, with the difference in average of 4.5. The results of the analysis of student’s learning motivation difference test between the control group and experimental group 1 with the average difference of 4.76. The analysis results show a different increasing of student’s motivation and achievement between the control group and the experimental group 2 with the difference in average of 1.19. The results of the analysis of student’s learning motivation difference test bet ween the control group and experimental group 1 with the average difference of 2.68. From the results of the research it can be concluded that the application of the model of collaborative learning can be used in the sciece learning process for elementary schools to enhance students motivation and achievement.Keywords: collaborative learning, learning motivation, and learning achievement
Pengembangan perangkat pembelajaran collaborative learning berbasis kearifan lokal untuk meningkatkan karakter nasionalisme dan kreatif
Authors: Nur Arifah 
Published: October 2017

Penelitian ini bertujuan untuk (1) menghasilkan perangkat pembelajaran collaborative learning berbasis kearifan lokal yang layak untuk meningkatkan karakter nasionalisme dan kreatif siswa dan (2) mengetahui keefektifan perangkat pembelajaran collaborative learning berbasis kearifan lokal untuk meningkatkan karakter nasionalisme dan kreatif siswa. Penelitian ini merupakan penelitian dan pengembangan mengacu pendapat Borg&Gall, tetapi desain pengembangan perangkat pembelajaran ini hanya meliputi 9 langkah, yaitu (1) penelitian pendahuluan dan pengumpulan informasi, (2) perencanaan, (3) pengembangan draft produk, (4) uji coba terbatas, (5) merevisi hasil uji coba terbatas, (6) uji coba lapangan, (7) penyempurnaan produk hasil uji coba lapangan, (8) uji coba lapangan operasional, dan (9) penyempurnaan produk akhir. Subyek penelitian adalah siswa kelas IV SD Piyungan Bantul. Hasil penelitian menunjukan bahwa perangkat pembelajaran ini layak digunakan menurut ahli materi dan ahli pembelajaran dengan kategori sangat valid. Berdasarkan hasil penelitian diketahui, bahwa terdapat perbedaan yang signifikan terhadap karakter nasionalisme dan kreatif antara siswa yang mengikuti pembelajaran dengan perangkat pembelajaran collaborative learning berbasis kearifan lokal dan yang tidak menggunakan perangkat pembelajaran hasil pengembangan. Kata Kunci: perangkat pembelajaran collaborative learning, nasionalisme, kreatif Developing Collaborative Learning Kits Based on Local Wisdom to Improve Nationalism and Creative Character AbstractThis study aims to (1) produce a collaborative learning kit based on local wisdom that is feasible to improve nationalism and creative character and (2) find out the effectiveness of the collaborative learning kit based on local wisdom to improve nationalism and creative character. This study is a research and development refering to the opinion of Borg & Gall, but the design of learning kits consists of only nine steps, including (1) research and information collection, (2) planning, (3) developing preliminary form of draft product, (4) preliminary field testing, (5) main product revision, (6) main field testing, (7) operational product testing, (8) operational field testing, and (9) final product revision. Subjects were fourth grade students Piyungan Bantul. The results show that the learning kit is effective to improve nationalism and creative character of students according to the material expert and learning expert with very valid assessment category. Based on the result showed that there are significant differences in nationalism and creative character of students who take the study with collaborative learning kits based on local wisdom with those who do not use learning kits.Keywords: collaborative learning kits, nationalism, creative
Pengaruh penggunaan media video terhadap motivasi dan hasil belajar kognitif pembelajaran IPA kelas V
Authors: Pebriani Corry 
Published: October 2017

Penelitian ini bertujuan untuk mengetahui: (1) pengaruh media video terhadap motivasi belajar peserta didik pada pembelajaran IPA, (2) pengaruh media video terhadap hasil belajar kognitif peserta didik pada pembelajaran IPA, (3) pengaruh media video terhadap motivasi belajar dan hasil belajar kognitif peserts didik pada pembelajaran IPA. Penelitian ini adalah quasi experiment. .Populasi penelitian ini adalah peserta didik kelas V se gugus 04 Palangka Raya. Sampel penelitian ditentukan dengan teknik cluster random sampling. Pengumpulan data menggunakan skala motivasi dan tes. Pengujian hipotesis dengan teknik MANOVA. Penelitian ini membuktikan bahwa terdapat pengaruh positif pada pembelajaran IPA yang menggunakan media video dibandingkan dengan pembelajaran IPA yang menggunakan media gambar terhadap motivasi belajar dan hasil belajar kognitif pembelajaran IPA.Kata kunci: media video, motivasi belajar, hasil belajar kognitif. The effect of video media on learning motivation and learning outcomes in natural science subject of the fifth grade students of elementary schoolsAbstractThis research aims to describe: (1) the effects of the video media on students’ learning motivation related to the natural science subject; (2) the effects of the video media on students’ cognitive learning outcomes related to the natural science subject; (3) the effects of the video media on students’ learning motivation and cognitive learning outcomes related to the natural science subject. This research is a quasi experiment. The population was the students of Fifth Grade Students of Elementary Schools Location 04 Palangka Raya. The sample was established using the cluster random sampling technique. The data collection used a motivation scale and test. The hypotesis testing used the MANOVA. The result of the research shows that there to know the difference of learning motivation and cognitive learning result in natural science subject of the fifth grade students of elementary schools location 04 Palangka Raya between before and after using video media.Keywords: video media, learning motivation, cognitive learning result.
Pigment Production of Monascus sp. Isolated from Angkak in Semarang Region, Central Java, Indonesia
Authors: Kusdiyantini Endang , Nugraha Soni , Lunggani Arina 
Published: October 2017

Angkak (red fungi rice, red yeast rice) is a traditional fermentation by fungi Monascus in a lot of Asia Countries, which is useful as a natural food colorant. The aim of this research was to obtain pure isolate of red fungus from angkak in Semarang. The growth and the red pigment production of the selected isolate in the different initial medium pH and nitrogen sources were observed. The treatment was done by growing the isolate in PDB (Potato Dextrose Broth) medium at initial pH 3, 5, 7 and 9 and as well as optimization of nitrogen sources with 1% ammonium chloride, 1% ammonium nitrate, and 1% peptone. Analysis of the fungi growth was performed by weighing mycelia biomass using dry weight method and the red pigments were analysis using spectrophotometer at a wavelength (λmax) of 500 nm. The results showed that the highest absorbance value of pigment (0.81) was obtained at pH 7, and the highest value of the cell dry weight was also obtained at pH 7 (1.23 g/L). The results showed that 1% ammonium chloride was the best nitrogen source for absorbance of red pigment production (0.82), but the highest of dry weight (2.56 g/L) was obtained by using medium with 1% ammonium nitrate as a nitrogen source.
Binding of Aflatoxin B1 to Lactobacillus paracasei SNP-2 and Stability of Bacteria-AFB1 Complex
Authors: Utami Rohula , Utami Tyas , Suparmo Suparmo , Rahayu Endang Sutriswati 
Published: October 2017

The aim of this research was to study the binding ability of viable and non-viable of Lactobacillus paracasei SNP-2 to aflatoxin B1 (AFB1) in phosphate buffer saline (PBS) at pH 7.3. Bacterial cells were grown in MRS broth at 37 °C for 24 h, and then centrifuged at 1,800g[a1] for 20 min at 10 °C to get the pellet. Pellet was suspended in PBS pH 7.3 until the cell concentration was about 1010 CFU/ml. Viable cells, the heated, and acid-killed cells were evaluated their ability to bind AFB1 in PBS pH 7.3. Stability of the L. paracasei SNP-2/AFB1 complexes was evaluated by determining the amount of the released AFB1 to the PBS following five times washing. The results showed that AFB1 binding ability to heat-and acid-kill bacteria were higher than that of by viable cells. More than 70% of bound AFB1 was released from viable bacteria after five times washing. However, the heated and acid-killed cell treatments significantly increased the complex stability of bacteria-AFB1
The Radio Frequency Source Position Finder Based on The Triangle-Centroid-Algorithm
Authors: Kristiyana Samuel , Susanto Adhi , Sunarno Sunarno , Hidayat Risanuri 
Published: October 2017

Radio Direction Finder (RDF) had been used as a part of the system in order to determine the direction of the Radio Frequency (RF) source. This research had used three different RDF stations without any mobile human operator. The direction data were collected from the each RDF station, it would be calculated using the triangle-centroid-algorithm. Therefore, the RF source position had been automatically determined. This experiment result of the RF source imaginary was compared with the real RF source at about 3.2 meters for latitude, and 3.3 meters for longitude. The results of this method and experiment are very useful for scientist and engineers in application of RF engineering.
Synthesis and Characterization of Hydroxypropylcellulose from Oil Palm Empty Fruit Bunches (Elaeis guineensis Jacq)
Authors: Marseno Djagal W. , Haryanti Pepita , Adiseno Binardo , Haryadi Haryadi 
Published: October 2017

Indonesia has a lot of oil palm empty fruit bunches (EFB) and usually discarded as agricultural waste. The major component of this oil palm EFB is cellulose, which is useful for food industry in the form of cellulose derivatives such as hydroxypropylcellulose (HPC). This paper reported about a method to prepare HPC from oil palm EFB as cellulose source. Oil palm EFB was dried, cut and milled to obtain EFB powder passed from 60 mesh screen. Cellulose in the EFB powder was extracted using 4% NaOH at 100ºC for 3.5 h, and then bleached using 5% NaOCl at 30ºC for 3 h. HPC was synthesized from cellulose using NaOH at 5-25% at 25ºC for 1 h, then propylene oxide (PO) at 0.6-1.4 mL per g cellulose was added to the slurry and the temperature was adjusted to 55ºC for 3 h. HPC from EFB cellulose had more less characters than its commercial especially in purity level. Alkalization using 10% NaOH and its etherification using 1.4% (v/w) PO gave HPC with the highest molar substitution (MS), viscosity, purity and crystallinity i.e. 0.1049; 76.88 cps; 76.91% and 24.39%, respectively.
Aprendizaje y formación por competencias del pensamiento numérico
Authors: Hernández Rosa Virginia , Mariño Luis Fernando , Cañas-Torres José Orlando 
Published: October 2017

Describir las prácticas pedagógicas desarrolladas por el profesor de matemáticas entorno al aprendizaje de la competencia numérica, son la base para un adecuado desempeño en el ejercicio de la docencia y la dirección educativa, de este modo los sistemas educativos de cada país deben centrar la enseñanza de las matemáticas hacia habilidades y procesos que les permita a los estudiantes adquirir la capacidad de conocimiento, entendimiento y crítica entorno a la competencia numérica de manera flexible, para formular proposiciones matemáticas, desarrollo de estrategias útiles hacia la manipulación de los números, realizar operaciones y resolver problemas. Para el desarrollo de la investigación, se diseñó un instrumento tipo escala Likert con 26 ítems aplicado a 80 estudiantes de grado séptimo en la Institución Educativa Julio Pérez Ferrero, sedes Cundinamarca y Nuevo Horizonte en la ciudad de Cúcuta. Los resultados del instrumento, permiten concluir que el profesor solo tiene en cuenta el contenido programático, su criterio y experiencia para desarrollar las clases. Las dimensiones de aprendizaje en torno a la planeación, desarrollo y mejora de las prácticas pedagógicas hacia el aprendizaje de las matemáticas, especialmente la competencia numérica, juega un papel importante el factor evaluativo centrándose en cómo los estudiantes pueden utilizar lo que han aprendido en situaciones de la vida cotidiana.
Regresión lineal de mínimos cuadrados para la carga y descarga de un condensador
Authors: Santiago-Angarita José Libardo , Rincón-Leal Olga Lucy 
Published: October 2017

El objetivo es determinar experimentalmente el proceso de carga y descarga de un condensador estando conectado en serie con una resistencia y una fuente de corriente continua, utilizando para ello los métodos numéricos en el proceso de ajuste de curvas a través de la regresión lineal de mínimos cuadrados, y con ayuda del software matemático Matlab se realizó la construcción de las respectivas curvas. Se estableció una relación entre el voltaje y el tiempo, formándose así una gráfica exponencial; se dedujeron las relaciones existentes y el comportamiento del fenómeno, dadas las ecuaciones y con la ayuda de lasegunda Ley de Kirchhoff; se determinaron las contantes de tiempo utilizando el método de regresión lineal de mínimos cuadrados, encontrándose un error experimental del 5 % con respecto a la constate de tiempo teórica RC.
Factores que inciden en el proceso de enseñanza aprendizaje del concepto de integral definida en estudiantes de ingeniería de la Universidad Francisco de Paula Santander
Authors: Mendoza-Lizcano Sonia Maritza 
Published: October 2017

En el proceso pedagógico matemático, el individuo desarrolla habilidades y competencias, las cuales no son exentas de la incidencia de variables ni actores que lo constituyen; en el cual emergen dificultades y ocurrencia de errores que reflejan problemas de repitencia y deserción. Esta investigación ahonda la comprensión del proceso de enseñanza y aprendizaje de generalidades matemáticas, específicamente el concepto de Integral Definida y sus niveles de representación semiótica. Caracterizando factores que inciden el proceso de enseñanza y aprendizaje a estudiantes de segundo semestre de ingenierías de la Universidad Francisco de Paula Santander (UFPS).
Toimijuutta toisella kielellä. Kansainvälisten sairaanhoitajaopiskelijoiden ammatillinen suomen kielen taito ja sen kehittyminen työharjoitteluissa
Authors: Virtanen Aija 
Published: October 2017

Aija Virtasen suomen kielen alaan kuuluva väitöskirja tarkastettiin Jyväskylän yliopistossa 22. huhtikuuta 2017. Vastaväittäjinä toimivat apulaisprofessori Lena Näre ja dosentti Johanna Vaattovaara Helsingin yliopistosta. Kustoksena toimi professori Minna Suni.

Aija Virtanen: Toimijuutta toisella kielellä: kansainvälisten sairaanhoitajaopiskelijoiden ammatillinen suomen kielen taito ja sen kehittyminen työharjoitteluissa. Jyväskylä Studies in Humanities 311. Jyväskylä: Jyväskylän yliopisto 2017. Kirja on luettavissa osoitteessa: http://urn.fi/URN:ISBN:978-951-39-7021-5.
Viittomakielisten vanhempien kuulevien lasten kaksikielisyyden kehitys
Authors: Laakso Minna 
Published: October 2017

Arvioitu teos:
Laura Kanto: Two languages, two modalities. A special type of early bilingual language acquisition in hearing children of Deaf parents. Acta Universitatis Ouluensis B 141. Oulu: Oulun yliopisto 2016. Johdanto 126 s. ja kolme artikkelia. isbn 978-952-62-1177-0 (pdf).
Les aînés actifs et l’archéologie publique au Québec: enquête sur les motivations et les obstacles à la participation
Authors: Mercier Caroline , Paquin Maryse 
Published: October 2017

Abstract: People 50 years and over constitute an important segment of the archeological heritage public. Given population aging in Quebec, adapting the range of public archeological activities offered has become imperative. However, very limited research is conducted to help archeologists and archeology mediators proceed in this regard. This article communicates the results of a research conducted at the Musée des plaines d’Abraham (Québec), within a workshop for active seniors. We establish the socio-demographic profile of casual participants to public archeological activities. We also try to identify the incentives and obstacles to such participation. KEYWORDS: Public Archeology; survey; motivations; obstacles; participation; Résumé: Les 50 ans et plus forment une part importante des publics du patrimoine archéologique. Avec l’accroissement du vieillissement démographique que connaît le Québec, il devient impératif d’adapter l’offre d’activités d’archéologie publique aux aînés. Peu de recherches sont toutefois menées pour guider les archéologues et les médiateurs de l’archéologie dans ce processus. Cet article présente les résultats d’une enquête réalisée au Musée des plaines d’Abraham (Québec), lors d’un atelier destiné aux aînés actifs. Celui-ci dresse le profil sociodémographique de participants occasionnels aux activités d’archéologie publique. Il tente également de cerner les motivations et les obstacles à leur participation.MOTS CLES: Archéologie publique; enquête; motivations; obstacles; participation