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Pengembangan modul praktikum berbasis inkuiri terbimbing pada peserta didik kelas XI MIA di SMAN 5 Makassar (Studi pada Materi Pokok Larutan Penyangga)
Full text linkPenelitian ini merupakan penelitian pengembangan (research and development) yang bertujuan untuk menghasilkan modul praktikum berbasis inkuiri terbimbing yang bersifat valid, praktis dan efektif. Pengembangan modul praktikum ini mengacu pada model pengembangan 4-D oleh thiagarajan yang meliputi tahap pendefinisian (define), perancangan (design), pengembangan (develop), dan penyebarluasan (disseminate). Modul praktikum ini telah melalui tahap validasi oleh validator ahli dan telah melalui uji coba terbatas, serta mengalami revisi oleh pengembang sehingga menghasilkan modul praktikum yang bersifat valid, praktis dan efektif. Hasil penelitian pengembangan modul praktikum ini adalah : 1) penilaian kevalidan ahli materi sebesar 3,65 dengan kategori sangat valid, hasil penilaian tampilan modul sebesar 3,68 juga memperoleh kategori sangat valid. 2) respon peserta didik dan guru juga memperoleh 83,14% dan 88,98% dengan kategori sangat tinggi sehingga modul praktikum dikatakan praktis; 3) pada tahap uji coba terbatas kepada 32 peserta didik kelas XI MIA di SMAN 5 Makassar memperoleh masing-masing rata-rata 87,50% yang berada pada kategori tinggi, sehingga modul praktikum dikatakan efektif. Kesimpulan dari penelitian ini adalah modul praktikum berbasis inkuiri terbimbing yang dikembangkan dengan model 4D bersifat valid, praktis dan efektif untuk digunakan dalam pembelajaran.
Kata kunci: Modul praktikum, Inkuiri terbimbing, Larutan penyangga
ABSTRACT
This study was a research and development that aimed to develop a experiment module based on guided inquiry which valid, effective, and practic. The development of this experiment module reffered development model of 4-D by thiagarajan that included are define, design, develop and disseminate of phases. This experiment module has validated by expert, and had been tried limitedly, and revised by order to obtain avalid, practical and effective experiment module. The result of this study were: 1) Validation of the validity of the material expert was 3.65 with a very valid category, the module display evaluation was 3.68 which very valid category; 2) students and teachers responses received 83,14% and 88.98% which very high category, so experiment module could be said practical; 3) in phase of tried limitedly to 32 students of class XI MIA SMAN 5 Makassar obtained the average score of students learning result was 87,50% which was high category. Experiment module could be said effective. The conclusion of this research was experiment module based on guided inquiry developed by 4D model was valid, practical, and effective to use on learning.
Keywords: Experiment module, Buffer solution, Guided inquir
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Pengaruh Penggunaan Startegi Dynamic Problem Solving Berbasis Conceptual Scaffolding untuk Meningkatkan Hasil Belajar Peserta Didik pada Materi Sifat Koligatif Larutan
Full text linkAbstractThis study aims to determine the effect of dynamic problem solving strategy based on conceptual scaffolding on learning outcomes and learning activities of learners on the material of the colligative nature of solution. This research uses experimental method with true experimental design in the form of pretest-posttest control group design. Population in this research is students class XII which study material of colligative nature of solution at SMAN 5 Makassar. The sample in this study is the students of class XII IPA consisting of two classes, namely experimental class and control class. The sampling technique used in this research is random sampling. Data analysis techniques using descriptive analysis techniques and inferential statistical analysis which includes assumption test and hypothesis test. The data showed that there was difference in learning outcomes of learners and activities between the control class and the experimental class. Keywords: Conceptual scaffolding, Colligative properties of solution, Dynamic problem solvingAbstrak Penelitian ini bertujuan untuk mengetahui pengaruh strategi dynamic problem solving berbasis conceptual scaffolding terhadap hasil belajar dan aktivitas belajar peserta didik pada materi sifat koligatif larutan. Penelitian ini menggunakan metode eksperimen dengan desain true experimental dengan bentuk yang digunakan saat uji lapangan yaitu berbentuk pretest-postestcontrol group design. Populasi dalam penelitian ini adalah siswa kelas XII yang mempelajari materi sifat koligatif larutan di SMAN 5 Makassar. Sampel dalam penelitian ini adalah siswa kelas XII IPA yang terdiri dari dua kelas yaitu kelas eksperimen dan kelas kontrol. Teknik sampling yang digunakan dalam penelitian ini adalah randomsampling. Teknik analisis data menggunakan teknik analisis deskriptif dan analisis statistik inferensial yang meliputi uji asumsi dan uji hipotesis. Data hasil penelitian menunjukkan bahwa terdapat perbedaan hasil belajar peserta didik dan aktivitas antara kelas kontrol dan kelas eksperimen. Kata Kunci: Conceptual scaffolding, Sifat koligatif larutan, Dynamic problem solvin
Studies on the Loading and Release of Metformin HCl Using Hydrogels with EGDMA and MBA as Crosslinkers
Full text linkHydrogel poly(N-vinylcaprolactam-co-2-(dimethylamino)ethylmethacrylate) or (P(NVCL-co-DMAEMA)) containing the active drug metformin HCl were synthesized using the free radical polymerization method in the presence of DMAEMA and NVCL monomers by using two different crosslinkers: ethylene glycol dimethacrylate (EGDMA) and methylene bisacrylamide (MBA). FTIR spectra confirmed the successful formation of hydrogel and its loading with metformin HCl. SEM analysis revealed the physical shape and surface features. Regarding physical appearance, the texture of the hydrogel is sticky and elastic. When the hydrogel was immersed in a solution, it swelled, and returned to its original shape after drying. Additionally, the chemical degradation temperature is thermally stable at 329.75 °C. The loading test results showed that the active drug in EGDMA was 18.38 (% w/w) and 26.19 (% w/w) in MBA as crosslinkers, loaded within 24 h. The drug-loaded hydrogel containing EGDMA as crosslinkers in pH 7.4 had the highest drug release in 24 h compared to MBA. Then, the drug released from hydrogel with EGDMA in pH 2 had the highest drug release than MBA within 30 min. The P(NVCL-co-DMAEMA) hydrogel has the potential for a drug delivery system. However, additional optimizations are necessary to improve the efficiency of the hydrogels as a carrier
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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