bluuebunny/crossref_metadata_2025 huggingface dataset:
Nietzsche en las vanguardias
Authors: De la Fuente Teixidó Ana María
Published: January 2018

Las vanguardias artísticas nacieron insertas en un mundo de cambios para destronar un sistema de órdenes que estaban en decadencia. En los inicios del XX se experimentó la primera gran crisis del canon estético que hasta entonces definía el arte,  los vanguardistas lo cuestionaron provocando la ruptura del discurso narrativo tradicional y lo reinventaron hasta convertirlo en uno de los pilares del mundo contemporáneo, abriendo una puerta desde lo imposible a lo posible. Como se verá en este artículo, debido a su sentido crítico, la obra de Nietzsche fue capaz de anticipar las coordenadas generales de las vanguardias con los ejes de su pensamiento: el nihilismo, la dicotomía dionisiaca/apolínea y la voluntad de poder como conceptos clave para comprender su génesis, el proceso de acción artística y su sentido. Para ello se recorrerá su obra en sus distintas etapas, y se interrelacionarán con las vanguardias, especialmente con el dadaísmo y el surrealismo.
Aprendiendo de la pseudociencia
Authors: Carmona Campo Andrés
Published: January 2018

El pensamiento crítico y escéptico hacia las pseudociencias se ha movido tradicionalmente en un sentido excesivamente racionalista. En el texto se critica ese exceso de racionalismo para adecuarlo a las recientes investigaciones en neurociencia, psicología y economía conductual acerca de las emociones y la toma de decisiones. Desde esta perspectiva, se intenta explicar la pervivencia de las pseudociencias pese a la crítica escéptica, y apuntar alternativas para hacer más eficaz y eficiente la difusión del pensamiento crítico y científico.
Ilia, y el camino de la felicidad
Authors: Timonet Pérez Ana
Published: January 2018

Este trabajo es el ganador de la III Olimpiada de Filosofía que organiza FICUM en la modalidad de secundaria. Ana Timonet presentó su particular respuesta a la pregunta por el camino de la felicidad.
Estética de la existencia y educación: la innovación pedagógica de finales del s.XX
Authors: Roldán López Carlos
Published: January 2018

Las prácticas educativas están social, político e históricamente construidas. Se construyen modelos y rituales en las prácticas educativas y se reproducen constantemente, haciendo perpetuar los elementos culturales y políticos introduciéndolos en los sujetos. Son dispositivos de poder.  A su vez, son prácticas construidas desde lo singular, es decir que se estructura desde cada actor de la práctica aportándole su propia significación. Así, la práctica educativa está inserta en múltiples significaciones. En este sentido, la docencia puede entenderse como un mecanismo de resistencia ante los dispositivos de poder, cuando se enmarca dentro del contexto más amplio de los llamados “cura sui” o Estéticas de la existencia concebidos por Michel Foucault.
MRI and 11C acetate PET/CT for prediction of regional lymph node metastasis in newly diagnosed prostate cancer
Authors: Below Catrin von , Wassberg Cecilia , Grzegorek Rafael , Kullberg Joel , Gestblom Charlotta , Sörensen Jens , Waldén Mauritz , Ahlström Håkan
Published: January 2018

Background

The aim of the study was to examine the value of quantitative and qualitative MRI and 11C acetate PET/CT parameters in predicting regional lymph node (LN) metastasis of newly diagnosed prostate cancer (PCa).

Patients and methods

Patients with intermediate (n = 6) and high risk (n = 47) PCa underwent 3T MRI (40 patients) and 11C acetate PET/CT (53 patients) before extended pelvic LN dissection. For each patient the visually most suspicious LN was assessed for mean apparent diffusion coefficient (ADCmean), maximal standardized uptake value (SUVmax), size and shape and the primary tumour for T stage on MRI and ADCmean and SUVmax in the index lesion. The variables were analysed in simple and multiple logistic regression analysis.

Results

All variables, except ADCmean and SUVmax of the primary tumor, were independent predictors of LN metastasis. In multiple logistic regression analysis the best model was ADCmean in combintion with MRI T-stage where both were independent predictors of LN metastasis, this combination had an AUC of 0.81 which was higher than the AUC of 0.65 for LN ADCmean alone and the AUC of 0.69 for MRI T-stage alone.

Conclusions

Several quantitative and qualitative imaging parameters are predictive of regional LN metastasis in PCa. The combination of ADCmean in lymph nodes and T-stage on MRI was the best model in multiple logistic regression with increased predictive value compared to lymph node ADCmean and T-stage on MRI alone.
Ocular changes in metastatic melanoma patients treated with MEK inhibitor cobimetinib and BRAF inhibitor vemurafenib
Authors: Gavric Ana Ursula , Ocvirk Janja , Mekjavic Polona Jaki
Published: January 2018

Background

Mitogen-activated protein kinase kinase (MEK) inhibitor cobimetinib and V-raf murine sarcoma viral oncogene homolog B1 (BRAF) inhibitor vemurafenib have significantly improved the prognosis of BRAF-mutated metastatic melanoma. Some ocular symptoms and signs were recently recognized to follow this treatment. The study was aimed to investigate ocular toxicity in patients with metastatic melanoma treated with cobimetinib in combination with vemurafenib.

Patients and methods

In the prospective, observational study, patients with BRAF-mutated metastatic melanoma treated with cobimetinib in combination with vemurafenib at the Institute of Oncology Ljubljana were asked to participate. Ophthalmic examination was performed including measurement of visual acuity and intraocular pressure, slit lamp examination, funduscopy (CF), infrared-reflectance (IR) imaging and optical coherence tomography (OCT).

Results

Five out of 7 patients noticed changes in vision few days after starting the therapy with cobimetinib. In all patients, small circular lesions, described as MEKAR lesions, were documented in outer retinal layers demonstrated with OCT, IR, and CF. Changes were in the center and/or scattered over the retina almost symmetrical in both eyes in 6 patients, and asymmetrical in one patient, the latter presented also with unilateral anterior uveitis and cystoid macular edema.

Conclusions

Multiple bilateral foveal and extrafoveal small retinal lesions in the outer retinal layers develop in patients treated with MEK inhibitor in combination with BRAF inhibitor. Ophthalmologists and oncologists need to be aware of this common, yet relatively benign and often transient ocular side effect to avoid needless intervention, including the discontinuance of a potentially life-prolonging therapy.
Sclerosing melanocytic lesions (sclerosing melanomas with nevoid features and sclerosing nevi with pseudomelanomatous features) – an analysis of 90 lesions
Authors: Grcar-Kuzmanov Biljana , Bostjancic Emanuela , Bandres Juan Antonio Contreras , Pizem Joze
Published: January 2018

Background

Sclerosing melanocytic lesions, which are characterized by either focal or diffuse sclerosis in the dermal component and atypical proliferation of predominantly nevoid melanocytes, remain poorly defined. Our aim was to analyze systematically their morphologic spectrum, especially the distinction between sclerosing melanocytic nevus and sclerosing melanoma, which has not been well documented.

Patients and methods

We collected 90 sclerosing melanocytic lesions, occurring in 82 patients (49 male, 33 female; age range from 21 to 89 years). A four probe fluorescent in situ hybridization (FISH) assay was performed in 41 lesions to substantiate the diagnosis of sclerosing melanomas.

Results

A prominent full-thickness pagetoid spread of melanocytes was identified in 44 (48%) lesions, and a melanoma in situ adjacent to the sclerosis in 55 (61%) lesions. In the intrasclerotic component, maturation was absent in 40 (44%) and mitotic figures were identified in 18 (20%) lesions. Of the 90 lesions, 26 (29%) were diagnosed morphologically as nevi and 64 (71%) as melanomas (Breslow thickness from 0.4 to 1.8 mm), including 45 (50%) melanomas with an adjacent nevus. A four-probe FISH assay was positive in the sclerotic component in 14 of 25 lesions diagnosed morphologically as melanomas and none of 16 nevi. A sentinel lymph node biopsy was performed for 17 lesions and was negative in all cases.

Conclusions

Sclerosing melanocytic lesions form a morphologic spectrum and include both nevi and melanomas. The pathogenesis of sclerosis remains obscure but seems to be induced by melanocytes or an unusual host response in at least a subset of lesions.
A constituição do Centro de Preservação da História Ferroviária do Rio Grande do Sul de Oitenta
Authors: Lewinski Cinara Isolde Koch
Published: January 2018

Este artigo tem por objetivo debater um tema ligado ao patrimônio histórico e surgiu da necessidade de se desenvolver um estudo sobre a atuação do Programa de Preservação do Patrimônio Histórico no Rio Grande do Sul, a partir das carências constatadas através da investigação sobre o assunto. Por isso, o Museu do Trem, antiga Estação Ferroviária de São Leopoldo, se tornou o objeto de pesquisa, pois, abrigou o Centro de Preservação da História Ferroviária do nosso Estado. A metodologia sobre o estudo está concentrada na pesquisa documental, com a finalidade de investigar a  reconstituição histórica do Preserve/fe em nosso Estado, na década de 1980. A pesquisa que está sendo elaborada é embasada teoricamente na história cultural e consiste em demonstrar a importância de se fazer um estudo mais aprofundado sobre a iniciativa do Governo Federal em preservar o patrimônio ferroviário do Rio Grande do Sul. Portanto, este artigo tem a pretensão de discorrer sobre composição do patrimônio ferroviário gaúcho por meio de uma breve análise sobre os motivos que levaram à construção de seu acervo utilizando-se de critérios para seleção dos objetos que perderam as suas atribuições funcionais e passaram a ser ressignificados como patrimônio.
Entre o varguismo e o florismo: a atuação da Frente Única Gaúcha no processo de isolamento político de Flores da Cunha
Authors: Lapuente Rafael Saraiva
Published: January 2018

Apresento parte da pesquisa desenvolvida no Programa de Pós Graduação em História na PUCRS em nível de mestrado. Aqui, analisamos o papel da Frente Única Gaúcha (PL e PRR) no processo de isolamento político do governador Flores da Cunha no Rio Grande do Sul (1935-1937). A FUG, uma aliança constituída em função da Revolução de 1930, passou a ser um bloco político oposicionista a partir do momento em que se distanciou de Getúlio Vargas, rompendo por definitivo em função do apoio aos paulistas na Guerra Civil de 1932, esperando contar com o apoio de Flores da Cunha, então interventor, que não ocorre. Desmantelado o movimento, os frenteunistas passaram para o exílio e ostracismo, voltando ao cenário político depois da Lei da Anistia de 1934, agora como bloco de oposição a Getúlio Vargas e Flores da Cunha. No entanto, a partir de 1935, passou a dialogar com ambos, sobretudo na medida em que Getúlio Vargas e Flores da Cunha, de fieis aliados, passaram ao rompimento político e pessoal, com a resistência deste a qualquer movimento em direção a quebra da carta constitucional de 1934. Desta forma, constatamos que a FUG teve papel decisivo para ambos os lados em dissídio, realizando um acordo com Flores da Cunha em 1936 – modus vivendi – mas, a partir de 1937, teve papel preponderante para a queda do governador do Rio Grande do Sul, viabilizando o golpe do Estado Novo, duas semanas depois de sua renúncia. Para isso, dialogaremos com a literatura existente sobre o tema e com alguns arquivos pessoais e hemerotecas, assinaladas ao longo deste texto.
GLOBALIZACÃO, SISTEMA JURÍDICO E MUNDANCAS SOCIAIS NA AMERICA LATINA: UM LONGO CAMINHO A PERCORRER
Authors: Cademartori Sergio , Miranda José
Published: January 2018

O sistema jurídico Latino Americano enfrentou processos de reforma e transformação substanciais nos últimos 15 anos. Os desafios políticos e sociais da democratização e da globalização têm afetado esse sistema jurídico de diferentes maneiras. A democratização e os processos neoliberais não foram suficientes para superar a situação de   injustiça social. No contexto atual da América Latina, é provável que a implementação do Estado de Direito  faça uma diferença significativa em termos das políticas que poderiam ser defendidas. Este estudo analisa os principais desafios para a sociedade latino-americana alcançar um sistema legal mais democrático e justo nos últimos 15 anos.
Direitos Fundamentais Sociais dos Imigrantes no Neoconstitucionalismo: Eficácia Jurídica e Social
Authors: Padovani Daniela Wernecke , Misailidis Mirta Lerena
Published: January 2018

O presente artigo trata da questão da efetividade dos direitos fundamentais dos imigrantes fronteiriços no Brasil, com destaque aos mais vulneráveis, os imigrantes indocumentados. Análise do tema tem como ponto referencial normativa nacional e internacional correlata, no contexto do constitucionalismo moderno, o que inclui o constitucionalismo liberal, social e neoconstitucionalismo, apresentando, este último, uma releitura do direito a partir de nova hermenêutica jurídica, servindo-se do princípio da vedação do retrocesso e de uma teoria de justiça na busca da implementação de uma sociedade livre, justa e solidária. A vertente metodológica adotada é a jurídico sociológica mediante o método dedutivo.
Pós-modernidade e soberania estatal: novos paradigmas e novos sujeitos
Authors: Alves Angela Limongi Alvarenga
Published: January 2018

Segundo a tradicional concepção jurídica da soberania construída na modernidade, o Estado detém a exclusividade na produção do direito dentro de seu território. Na pós-modernidade, porém, a formulação do direito é permeada por múltiplos sujeitos, para além do Estado, provenientes de um corpo social bastante complexo e heterogêneo. A partir da análise do conceito de soberania estatal, procura-se demonstrar que a exclusividade normativa do Estado não persiste na atualidade e que a soberania atual é composta por novos paradigmas e novos sujeitos.
Strawberry Extract’s Effects on Enterococcus faecalis and Porphyromonas gingivalis  Biofilms in vitro
Authors: Widyarman Armelia Sari , Widjaja Stephanie Brigitta , Idrus Erik
Published: January 2018

Background: Enterococcus faecalis (E. faecalis) and Porphyromonas gingivalis (P. gingivalis) are oral bacteria related to root canal infection and periodontal disease pathogenesis. Strawberries (Fragaria x ananassa) fruit are rich in vitamins and minerals, have antibacterial and antioxidant effects. Objective: This study investigated the inhibition effect of strawberry extract on monospecies and multispecies E. faecalis and P. gingivalis bacteria grown as biofilms in vitro. Methods: This study used E. faecalis ATCC 29212 and P. gingivalis ATCC 33277. It analyzed the effect of strawberry extract on bacteria biofilm formation using a biofilm assay on microplate wells. Five concentrations of strawberry extracts were used (100%, 50%, 25%, 12.5%, and 6.25%), and the inhibition effect was observed after a 1h, 3h, 6h, and 24h incubation period. Biofilms without the strawberry extract were used as the negative controls, and crystal violet and safranin (0.5%w/v) were used to count the biofilm mass. The biofilms grown on microplates were counted using an ELISA reader at 450 nm after 200 mL of 90% ethanol was added to attract the absorbed stain. The strawberry extract inhibition effectiveness on the biofilm formation of each bacterium tested was analyzed using one-way Anova, where p<0.05 was defined as a significant difference. Result: The strawberry extract inhibited the tested monospecies and multispecies bacteria biofilm formation. The optimal strawberry extract concentration for the inhibition of either monospecies biofilms was 100%. However, the optimal incubation time for the strawberry extract to inhibit the multispecies biofilm formation was 24h, which was the study’s biofilm maturity phase. Conclusions: The 100% strawberry extract concentration inhibited the formation of both the monospecies and multispecies E. faecalis and P. gingivalis biofilms. Future studies are needed to evaluate the potential of strawberry extract as an alternative dental therapy.
The Importance of The Dentist – Patient Relationship in Oral Cancer Treatment
Authors: Gunardi Indrayadi , Amtha Rahmi
Published: January 2018

Background: There are many instances in oral cancer cases in which a lack of patient cooperation was found to be a hampering factor in the overall case management. A good relationship between dentists and patients should therefore be built in conjunction with other treatment modalities. Case Report: Three complete oral cancer cases with dentist–patient relationship problems are presented. One of the common basic ways to build a good relationship is through communication and empathy. A relationship is also influenced by psychological distress, experience from previous treatments, socioeconomic factors, the healthcare system, time constraints, and belief. Conclusion: No single intervention strategy can improve the compliance of an oral cancer patient. An assessment of patient knowledge and understanding of the regimen along with clear and effective communication and trust in the therapeutic relationship are important in the overall patient management.
A THE EFFECT SUPERVISION, SCHOOL CULTURE, AND WORK COMMITMENT OF JOB PERFORMANCE PRIMARY SCHOOL IN PRINCIPAL OF ADMINISTRATIVE REGION II CITY WEST JAKARTA
Authors: Suharto Suharto
Published: January 2018

The purpose of this study was to determine the effect supervision, school culture, and work commitment of job performance elementary school principal of administrative region II city west Jakarta. This research tried to answer problems about job performance with evidence increasing of service employee. The research was conducted on job performance employee involving of 110 elementary school principal had been selected from the target populations of 128 employees by using the quantitative approach with path analysis methods. The research of hypothesis testing show: (1) supervision had a direct effect positive on job performance; (2) school culture had a direct effect positive on job performance; (3) work commitment had a direct effect positive on job performance; (4) supervision had a direct effect positive on work commitment: (5) school culture had a direct effect positive on work commitment;. Therefore to improve the job performance school principal of administrative region II city west Jakarta. Need to increase supervision, school culture, and work commitment.
Multimedia Interaktif dalam Pembelajaran Konsep Listrik bagi Calon Guru
Authors: Gunawan Gunawan , Harjono Ahmad , Sutrio Sutrio
Published: January 2018

There are many abstract concepts in physics. This raises its own difficulties in learning physics. The difficulty in teaching abstract concepts can be solved using computer technology. Computer technology presents opportunities for learning abstract concepts, such as through the use of interactive multimedia in learning physics. In this study has developed an interactive multimedia on the concept of electricity. This study aims to examine the impact of the use of interactive multimedia on student mastery of the concept of electricity. The results showed an increase in mastery of concepts in both classes. The highest increase occurred in the concept of Coulomb's law, which is 68.6% (experimental group) and 48% (control group). Mastery electric concept experimental group is greater than the control group, indicates that interactive multimedia effective in supporting the process of learning physics.ÃÂ
Pengaruh Penerapan Model Pembelajaran Kontekstual Berbantuan Media Flash Terhadap Pemahaman Konsep Fisika Siswa
Authors: Riyadi Akbar , Gunawan Gunawan , Ardhuha Jannatin
Published: January 2018

This research is a quasy experiment which aimed to finding out the effect of contextual learning model implementation assisted by media flash on the understanding concept of physics in SMPN 1 Labuapi. The population is all class VIII which filled by 117 students, while the sample of this research is class VIII B with 23 students as experiment group and grade VIII C with 23 students as control group. The sampling technique used is purposive sampling. The research design used is nonequivalent control group design. The hypothesis is tested by t-test separated varians. Based on by calculation hypothesis testing obtained that there is a difference of understanding concept of physics between experiment group which is given treatment with contextual learning model assisted by media flash and control group which is given treatment as convensional learning. The mean of the posttest for experiment group is greater than control group, so it can be obtained that contextual learning model assisted by media flash given positive result for understanding concept of physics in grade VIII SMPN 1 Labuapi. N-gain test given that for all of sub materi of light showed that the increasing of understanding concept of physics of class experiment is higher than control class, so it can be obtained that the increasing of understanding concept of physics of experiment group is higher than control group.
Pemodelan Inversi Gravitasi 4d Injeksi Gas pada Reservoir Minyak
Authors: Zuhdi Muhammad , Setiawan Ari
Published: January 2018

Injeksi fluida pada reservoir minyak dapat meningkatkan produksi minyak. Injeksi ini perlu di identifikasi agar tidak merugikan. Salah satu upaya identifikasi injeksi fluida pada reservoir minyak adalah pemantauan dengan mikro gravitasi 4D. Injeksi gas berupa uap air (steam) pada reservoir melalui sumur minyak dapat meningkatkan produksi di sumur-sumur sekitarnya, dengan asumsi gas akan mendorong minyak menuju sumur produksi. Injeksi ini memerlukan identifikasi gerak fluida agar efeknya tidak merugikan. Geometri fluida injeksi pada titik sumur minyak dapat didekati dengan bentuk bola (sphere), sedangkan pergerakan fluida dengan arah tertentu dapat di dekati dengan bentuk silinder. Program inversi dengan matlab telah dibuat untuk kepentingan tersebut. Hasil inversi menunjukkan dapat ditentukannya pusat bola dan silinder, jari-jari bola maupun silinder serta panjang silinder dari kedua model tersebut.
Model Simulasi dalam Mata Kuliah Strategi Pembelajaran Fisika
Authors: Rahayu Satutik
Published: January 2018

The simulation model of learning is the application of the principles of cybernetics in education is a human as a control system that is able to generate and control the movement itself through feedback. Learning model simulations applicable in the course of learning strategy with the aim to enable students abilities analogous to the process of cybernetics. The simulation model has four stages: orientation, training for participants, process simulation and stabilization or debriefing. Lecturer in learning tasks with the simulation model is as supportive of observing and helping students deal with problems that arise.
Pengaruh Penggunaan Multimedia Interaktif Terhadap Penguasaan Konsep dan Keterampilan Berpikir Kritis Siswa pada Materi Suhu dan Kalor
Authors: Husein Sadam , Herayanti Lovy , Gunawan Gunawan
Published: January 2018

This research aims to know the effect of using interactive multimedia towards concepts mastery and critical thinking skill of students on the material of temperature ang heat. This research is an experimental research that uses pretest-posttest control design. The sample of this research is grade XA and XB students of SMAN 1 Alas in the academic year 2013/2014 that determined by cluster random sampling technique. The instruments that used to collect the data are test sheets of mastering concepts is developed based on indicator of temperature and heat learning material on the sub topic of expansion, heat transfer and black principle. Meanwhile, the test of critical thinking skill is developed based on the indicator of argument analysis shows that mean score of concepts mastery of experimental group is 61% and control group is 54%. The result of t-test of concepts mastery and critical thinking skill shows that experimental group is significantly higher that control group. It means that the use of interactive multimedia has an effect towards concepts mastery and critical thinking skill of students on the material of temperature and heat.
Implementasi Model Pembelajaran Quantum dengan Metodediskusi untuk Meningkatkan Aktivitas dan Hasil Belajar Fisika Siswa SMPN 2 Lingsar Tahun Ajaran 2014/2015
Authors: Mirgoni Ibrohim , Sahidu Hairunnisyah , Hikmawati Hikmawati
Published: January 2018

This research is a classroom action research which aims to increase physical activity and learning outcomes of students SMPN 2 Lingsar the academic year 2014/2015. The subjects in this study VIII5 classes totaling 40 people. Implementation of classroom action research was conducted in two cycles with each cycle consisting of four stages: planning, implementation, observation and evaluation, and reflection. Student learning activity data obtained through observation, while data on student learning outcomes obtained through the administration of the test at the end of each cycle. Based on the results of the evaluation cycle I obtained an average score of student learning activity is 11, which is in the category fairly active. The average value of the class in the first cycle of 73.95 with 78.95% classical completeness. Results of the evaluation in the second cycle to the average score is 14.6 students' learning activities that are in the active category. The average value of the class in the second cycle of 78.10 with 89.19% classical completeness. The average score of student learning activity increased from the first cycle to the second cycle of 3.6, the learning outcomes of students increased by 4.15, while the classical completeness increased by 10.24%. Based on the results of this study concluded that the implementation of the learning model Quantum with discussion method can increase physical activity and learning outcomes VIII5 grade students of SMPN 2 Lingsar the academic year 2014/2015.
Pengaruh Model Pembelajaran Berbasis Masalah dan Ekspositori dengan Keterampilan Proses Sains Terhadap Hasil Belajar Fisika Siswa Kelas VIII MTsN 1 Mataram Tahun Ajaran 2014/2015
Authors: Hardiyanto Hardiyanto , Susilawati Susilawati , Harjono Ahmad
Published: January 2018

This research aims to (1) reveal the effect of problem based and expository learning towards physicsÃ¢â¬â¢ learning outcomes, (2) uncover the effect of studentsÃ¢â¬â¢ science process skill towards physicsÃ¢â¬â¢ learning outcomes, (3) reveal the interaction between studentsÃ¢â¬â¢ science process skill and their physicsÃ¢â¬â¢ learning outcomes. This study is a quasi-experimental study applying factorial design 2 x 2. The study was conducted from November 2014 to May 2015.ÃÂ  The population of this research is the whole students of class VIII which comprises of 9 classes in MTS Negeri 1 Mataram. The purposive sampling was chosen as the sampling technique for this study, in which class VIII-8 acted as the experiment class and class VIII-7 as the controlled class. The data collection encompasses data of science process skill, and studentsÃ¢â¬â¢ physicsÃ¢â¬â¢ learning outcomes (in the cognitive, affective, and psychomotor domains) towards the main material of light. Technique of collecting data of science process and physicsÃ¢â¬â¢ learning outcomes in affective and psychomotor domains were done by using observation sheet with certain criteria, while cognitive domain was done through the test.ÃÂ  The test instrument has previously been through validity test, reliability test, difficulty level, and discrimination index. The data obtained were firstly tested their normality and homogeneity, then continued by the testing of the hypothesis by using two-way analysis of variance (ANOVA). Data analysis technique was done by using ANOVA 2x2 with different cell. The result of this study shows that (1) problem based and expository learning affects physicsÃ¢â¬â¢ learning outcomes, (2) studentsÃ¢â¬â¢ science process skill affects their physicsÃ¢â¬â¢ learning outcomes, and (3) there is no interaction between science process skill and studentsÃ¢â¬â¢ learning outcomes.
Pengaruh Model Pembelajaran Kooperatif dengan Pendekatan Problem Posing Ditinjau dari Pengetahuan Awal Terhadap Kemampuan Pemecahan Masalah Fisika Siswa SMK
Authors: Jannah Siti Nurdatul , Doyan Aris , Harjono Ahmad
Published: January 2018

This study aims to determine the effect of cooperative learning through problem posing approach to the studentsÃ¢â¬â¢ problem solving skills in terms of prior knowledge. The method used is a quasi-experimental method with 2x2 factorial study design. The study population was 163 students of class XI SMKN 9 Mataram scattered in 5 classes. These samples included 55 students, divided into two classes by cluster of random sampling technique. The research instrument is a test mastery of concepts and problem solving skills test given at the beginning and end of the study. The data was analyzed by Manova two ways. (1) students learn to use cooperative learning model with problem posing approach was significantly different in the aspect of problem solving ability than students who study with learning cooperative model only, (2) students who have high prior knowledge different significantly in aspects of problem solving ability compared students who have low prior knowledge, (3) there was not an interaction effect between learning model with prior knowledge of the problem solving ability students
Penerapan Pendekatan Keterampilan Proses Sains dalam Model Pembelajaran Guided Discovery untuk Meningkatkan Hasil Belajar IPA Fisika Pada Siswa Kelas VIIa SMPN 8 Mataram Tahun Ajaran 2015/2016
Authors: Azizirrahim Enol , Sutrio Sutrio , Gunawan Gunawan
Published: January 2018

The purposes of this research is to improve learning outcomes of students at SMPN 8 Mataram. This is a classroom action research with two cycles. Each cycles include planning, implementation, observation, evaluation and reflection. Implementation of guided discovery learning model made 5 phases: introduction, orientation of students on the issue, conducting, presenting and evaluating results. In the first cycle, obtained an average student learning outcomes at 74.82, while in the second cycle of 81.75. Classical mastery learning in the first cycle of 64.7% and in the second cycle of 86%. Activities of students and teachers that are in the active category. Based on these results it can be concluded that the application of guided discovery learning models with science process skills approach is proven to increase physics learning outcomes of students at SMPN 8 Mataram.
Pemetaan Profil Kemampuan Penalaran Calon Guru Fisika di FKIP Universitas Mataram
Authors: Gunawan Gunawan
Published: January 2018

Learning physics is not only produces a good learning outcomes, but requires the understanding, reasoning ability and conceptual understanding to solve the problems. Efforts that can be done to design a good learning is to mapping the ability of the learners. In this research, mapping of preservice physics teacherÃ¢â¬â¢s reasoning ability profile to know the description of the ability of spatial reasoning, logical reasoning and analytical reasoning. This is descriptive research. The population of this study includes all of students of physics education at Mataram University with the number of respondents as many as 125 students from the proportionally selected from each grade. The result of simple descriptive statistic test shows that students have higher spatial reasoning ability compared to logical and analytical reasoning ability as indicated by average score of reasoning ability test. Spatial reasoning skills of prospective teachersÃ¢â¬â¢ are also analyzed on the basis of their indicators. The highest scores is on the ability to complete the pattern and the lowest score is on the relation and logical consistency.
Kemampuan Pemecahan Masalah Melalui Pembelajaran Interactive Demonstration Siswa Kelas X SMA pada Materi Kalor
Authors: Azizah Rismatul , Yuliati Lia , Latifa Eny
Published: January 2018

The application of teacher centered learning in classroom is causing the underdevelopment of students problem solving ability and students activity in learning. Interactive demonstration is an active learning model developed by Wenning. Through interactive demonstrations, students can use the basic intellectual process skills that includes predicting, explaining, estimating, acquiring and processing data, formulating and revising scientific explanations using logic and evidence, and recognizing and analyzing alterative xplanations and models. The purpose of this research is to determine the effect of interactive learning demonstration toward students' problem solving ability. This research was mixed method research with embedded design. The sample is selected by purposive sampling method, that was the grade X MIA 1 students of SMAN 1 Bangil. The results of this study indicate that there is the effect of interactive demonstration learning and that learning can enhance students' problem-solving abilities.
Pengaruh Model Pembelajaran Generatif Berbantuan Media Laboratorium Virtual Terhadap Penguasaan Konsep Fisika Siswa pada Materi Momentum dan Impuls
Authors: Sugiana I Nyoman , Harjono Ahmad , Sahidu Hairunnisyah , Gunawan Gunawan
Published: January 2018

This Ã¢â¬Ånon-equivalent control group designÃ¢â¬Â quasi experimental research was purposed to identify the effect of generative-based learning model using virtual laboratory media towards the studentsÃ¢â¬â¢ concept mastery and creativity in physics. The population of this research is all 173 students of X grade in SMK Negeri 7 Mataram. The X grade students of Teknik Komputer Jaringan A (TKJ-A) department was determined as the experimental group and the X grade students of Teknik Komputer Jaringan B (TKJ-B) department was the control group. The way of collecting data for the concept mastery was done by using multiple choice test. The result revealed that the mean score of the post-test for the concept mastery was 43 for the experimental group with the highest score 56. Meanwhile the mean score of the control group was 36 with the highest score 52. The research hypothesis was tested using t-test pooled variances. The result showed that the value of ttab is higher than tarith the value is 3,42 > 2,00 for the concept mastery. As the conclusion, this research showed that there was an effect towards the experimental group studentsÃ¢â¬â¢ concept mastery and creativity in physics which was treated using generative-based learning model using virtual laboratory media.
Pengaruh Model Project Based Learning Berbantuan Media Virtual Terhadap Penguasaan Konsep Peserta didik pada Materi Alat-alat Optik
Authors: Suranti Ni Made Yeni , Gunawan Gunawan , Sahidu Hairunnisyah
Published: January 2018

Learning physics should be able to provide an understanding physics of abstract concepts. One of the efforts being made to improve the learning of Physics is to use appropriate learning model. This study aims to improve the studentÃ¢â¬â¢s conceptual understanding by using project based learning model with virtual media for X Grade student at SMAN 2 Mataram Years 2015/2016. This study was conducted using a type of quasi-experimental research, untreated control group design with pretest and posttest on Optic. Hypothesis test results that the model used to give effect to theÃÂ  studentÃ¢â¬â¢s conceptual understanding, was shown to increase student conceptual understanding was higher in the experimental class compared with the control class. N-gain test results stating that the conceptual understanding has increased in each sub material. The results of the analysis conceptual understanding score on every aspect of cognitive increased.ÃÂ
Pengaruh Model Pembelajaran Langsung Berbantuan Media Laboratorium Terhadap Kreatifitas Fisika Siswa SMA
Authors: Ekasari Ria Rizki , Gunawan Gunawan , Sahidu Hairunnisyah
Published: January 2018

This research aims to investigate the influence of direct instruction model with virtual laboratory media toward student creativity in physics using "pretest-posttest control group design". The creativity data collected by essay type test shows that pre-test average grade of experimental class is 41 and control class is 36, while post-test average grade of experimental class is 74 and control class is 69. Based on data analysis, creativity of male student in physics is higher than female student. The average grade of male student is 72 while female student is 70. The result of hypothesis testing using polled variance t-test with significance level of 5 % is tcalculation=> ttable = 1,99601 or, in other words, the calculated t value is greater than the value given in the table. It can be concluded that direct instruction model with virtual laboratory media influences high school student creativity in physics.
Pengaruh Model Pembelajaran Berbasis Masalah Berbantuan Simulasi Virtual Terhadap Penguasaan Konsep dan Kreativitas Fisika Siswa SMAN 2 Mataram
Authors: Dewi Shinta Mutiara , Harjono Ahmad , Gunawan Gunawan
Published: January 2018

This research is a quasi-experimental aims to identify the effect of problem-based learning model using virtual simulation media towards the studentsÃ¢â¬â¢ concept mastery and creativity in physics. The design of this research used of non-equivalent control group design, while the sampling technique used purposive sampling. The population of this research is all students of grade X SMAN 2 Mataram, while the sampling are the students of grade X-3 as the experimental group and the students of grade X-4 as control group. The data obtained in this research isÃÂ  data mastery of concept and creativity. The research hypothesis was tested using t-test polled variances. The test result showed that the N-gain mastery of concepts has increased in each sub material and the highest increase in the sub matter theory of electromagnetic waves. Values of N-gain experimental group in the high category (71%) and control group in the medium category (53%). T-test showed that the model is applied to significant influence on improving studentsÃ¢â¬â¢ mastery of concepts and creativity, higher in the experimental group compared with the control group. Increased figural creativity higher than verbal creativity in both classes
Pengaruh Model PBL Berbantuan Media Virtual Tehadap Kemampuan Pemecahan Masalah Fisika
Authors: Hastuti Andriyani , Sahidu Hairunnisyah , Gunawan Gunawan
Published: January 2018

This study aims to determine the effect model of Problem Based Learning (PBL) aided virtual media to the mastery of the concepts of physics students SMK 1 Lingsar Academic Year 2015/2016. This study is a quasi-experimental design with Nonequivalent Control Group Design. The study population all students of class X SMK 1 Lingsar and research sample class X-1 and X MM MM-3 were selected by purposive sampling. Data analysis using polled variance t test. The results showed that the model PBL-aided virtual media influence on students' mastery of concepts of physics. Judging from the average value, penguasaam concepts of physics experimental class is higher than the control class. N-gain first test showed that an increase in the value of the mastery of the concept of the experimental class to the theory and calculation.ÃÂ  N-gain second Test results show that the experimental group was higher than the control class in each sub material unless the material collision
Pengaruh Model Direct Instruction Berbantuan Simulasi Virtual Terhadap Penguasaan Konsep Siswa
Authors: Arianti Baiq Ida , Sahidu Hairunnisyah , Harjono Ahmad , Gunawan Gunawan
Published: January 2018

Penelitian ini merupakan jenis penelitian quasi eksperimen dengan desain non-equivalent control grup design. Pengambilan sampel dilakukan dengan teknik purposive sampling. Populasi penelitian adalah seluruh siswa kelas X MIA MAN 2 Praya. Sampel penelitian diperoleh siswa kelas X MIA-1 sebagai kelas eksperimen dan siswa kelas X MIA-2 sebagai kelas kontrol. Data penelitian dianalisis dengan uji-t polled varians dengan taraf signifikan 5%, dan diperoleh hasil thitung =2,54ÃÂ  dan ttabel = 2,02. Oleh karena thitung >ttabel, maka dapat disimpulkan bahwa model direct instruction berbantuan simulasi virtual berpengaruh terhadap penguasaan konsep fisika siswa
Berpikir Kreatif Dalam Fisika Dengan Pembelajaran Conceptual Understanding Procedures (CUPs) Berbantuan LKPD
Authors: Fitriani Nurul , Gunawan Gunawan , Sutrio Sutrio
Published: January 2018

This study aims to improve students' creative thinking ability in physics by using conceptual understanding learning learning with LKPD. This quasi experimental study uses non-equivalent control group design. The population is all students of class X MA NW Narmada. The sample was chosen using purposive sampling technique which consist of class XB students as experiment class and XA class student as control class. The research instrument uses verbal and figural creativity tests that have been validated by experts. Hypothesis test using t-pooled variance test. Increased creativity is determined based on the results of the N-gain test. The results showed that there was an increase of students' creativity in both classes. Verbal and figural creativity improves in both classes. The experimental class experienced a higher creativity increase than the control class. Verbal creativity increased higher than the figural creativity. This shows that LKPD conceptual understanding procedure model applied successfully improve the creativity of learners in physics learning.
Pengembangan Bahan Ajar Fisika Kontekstual Untuk Meningkatkan Penguasaan Konsep Siswa
Authors: Oktaviani Widya , Gunawan Gunawan , Sutrio Sutrio
Published: January 2018

This study aims to determine the influence of contextual physics teaching materials in an effort to improve the mastery of student concepts. This research is a type of research development (reseach and development). The population is all students of class XI IPA SMA Negeri 2 Mataram 2016/2017 school year amounted to 365 students. The sample was determined by purposive sampling technique so that it was obtained by class XI IPA 2 (38 students) as experimental class and class XI IPA 3 (40 students) as control class. The instrument used to measure conceptual mastery is a multiple-choice test. The results showed that the use of contextual teaching materials influential in improving the mastery of the concept of students.
Sifat Optik Lapisan Tipis ZnO
Authors: Doyan Aris , Humaini Humaini
Published: January 2018

The aim of this research is to manufacture and characterize optical properties of ZnO thin layer which is deposited on glass substrate by sol-gel spin-coating method, through the process of growing ZnO thin layer of zinc acetate dehydrate (ZnAc) precursor on glass substrate with spin speed 2000 rpm for 30 minutes on a spin coater plate. The growth of layers by the sol-gel method of spin-coating is determined by the length of time of spin rotation which is related to the thickness of the thin layer. The Samples on the substrate in anneling at 400 oC and 500 oC for 1.5 hours to obtain a thin layer of ZnO. The obtained layer was characterized by UV-Vis test to determine the optical properties of the coating which include absorbance, transmittance, and bandgap energy. UV-Vis testing states that, the higher concentration of ZnO solution then the layer looks increasingly not transparent so that the transmittance value is smaller, otherwise the absorbance value of the layer becomes higher. This is indicated by the results obtained, at 1 M molarity concentration obtained the value of transmittance (50. 40%), while at a concentration of 0.7 M obtained greater transmittance value (75.24%) at the same heating temperature 500 oC. The gap energy is a forbidden area where electrons are located between the valence bands filled by the electrons and the empty conduction bands of the electrons. With respect to the photon energy to excite the electrons, the annealing treatment will affect the magnitude of the gap energy. High annearance temperature obtained a smaller gap energy compared with lower anneling temperatures. The obtained energy gap of 2.1 eV at 400 ÃÂ°C annealing temperature is greater than 0.1 eV compared to the heating temperature of 500 oC at 2.0 eV.
Pengaruh Penggunaan Media Audiovisual Dengan Pendekatan Metakognitif Berbasis Masalah Terhadap Hasil Belajar Fisika Siswa Kelas XI IPA Di SMAN 1 Gerung Tahun Pelajaran 2016/2017
Authors: Prayudi Lalu M. Eka , Sahidu Hairunnisyah , Gunawan Gunawan
Published: January 2018

The purpose of this study is to examine the effect of audiovisual media with problem based metacognitive approach toward physics learning result of XI IPA at SMAN 1. The type of the study is experimental by using pretest-post test control group design. The population are XI IPA 1st semester students is 299. The technique that used to collect the sample is cluster random sampling, XI IPA 3 students as experiment class and XI IPA 4 students as controll class and each consist of 34 students. The media that used as audiovisual is powerpoint. Instrument that used is multiple choices consist of 20 question. The learning result of experiment class students and control class each 70.15 and 61.85. ÃÂ score experiment class and control class obtained consecutively 12.5086 and 12.9889, ÃÂ score is 15, so that both of class distibuted normally. Fcount ÃÂ score obtained 1.00 < FtabelÃÂ is 1.77 so that both of sample class is homogen. The data result analysis by using T-test onÃÂ  both class by significant 5% and Tcount ÃÂ obtained is 2.45 and Ttabel ÃÂ is 1.99 on db 66, it means that Ho rejected and Ha accepted, so that it can be concluded there is an efffect of using audio visual media with metacognitive based on problem toward physics learning result of XI IPA at SMAN 1 Gerung accademic year 2016/2017.
Pengaruh Model Learning Cycle 5E (Engage, Explore, Explain, Elaboration, & Evaluate) Terhadap Kemampuan Berpikir Kritis Peserta Didik Kelas X MAN 1 Mataram
Authors: Latifa Baiq Rizkia Ayu , Verawati Ni Nyoman Sri Putu , Harjono Ahmad
Published: January 2018

This study aims to determine the effect of learning cycle 5E model (Engage, Explore, Explain, Elaboration, & Evaluate) on studentÃ¢â¬â¢s critical thinking skills of class X in MAN 1 Mataram. This research type is quasi experiment with research design untreated control group with pretest and posttest design. The sample was selected by cluster random sampling technique and obtained X MIA 1 class as experiment class using learning cycle 5E model and X MIA 2 class as control class using cooperative learning type STAD model. The critical thinking abilityÃ¢â¬â¢s data collected by essay test that are 5 questions that have been tested for validation, reliability, difficulty level, and index of discrimination. Researchers used homogeneity test, normality test, t-test polled variance, and N-Gain test as statistical test. N-Gain test are used to determine the improvement of critical thinking skills in each indicator. The experimental class get improvement result in medium category for all indicators, while the control class get improvement in medium category on three indicators and two other indicators in low category. Based on result of hypothesis test can be concluded that there is effect of learning cycle 5E model to critical thinking ability of students.