1,720,958 research outputs found
Optimasi Uji Difusi Kombinasi Testosteron Undekanoat (TU) dan Medroksi Progesteron Asetat (MPA) dalam Sediaan Mikroemulsi
Full text linkUji difusi kombinasi testosteron undekanoat (TU) dan medroksi progesteron asetat(MPA) dalam sediaan mikroemulsi yang telah dilakukan belum menunjukkan profil difusi yang optimal.Penelitian ini bertujuan untuk mengoptimasi medium difusi dan kinetika pelepasan sediaanmikroemulsi TU dan MPA. Parameter yang dioptimasi dalam penelitian ini adalah medium difusiyaitu menggunakan medium NaCl fisiologis, phosphate buffer saline (PBS) dan isopropanol-air (1:9).Pengujian difusi dilakukan dengan menggunakan alat Franz Diffusion Cell dan otot paha tikus jantanSprague-Dawley sebagai membran difusi yang dilakukan selama 18 jam. Hasil uji difusi dianalisisdengan kromatografi cair kinerja tinggi (KCKT) pada kondisi optimum dengan fase gerak metanolasetonitril(90:10), kolom C18, laju alir 1,2 ml/menit, volume injeksi 20 μl dan menggunakan detektorUV-Vis pada panjang gelombang 243 nm. Hasil analisis menunjukkan medium difusi yang palingoptimum adalah isopropanol-air (1:9). Kinetika pelepasan sediaan tersebut mengikuti kinetika ordenol dengan nilai r = 0,9913 untuk TU dan nilai r = 0,9777 untuk MPA
Characteristics of Amino Acid, Fatty Acid and Mineral of Sea Hare
Full text linkDolabella auricularia are found in the waters of Indo - Pacific and has active compound in health,which until now is still limited information about nutritional content from sea hare. The aim of this researchwere to determine morphometric and chemical characteristic D. auricularia which includes the proximate,amino acids, fatty acids and minerals. The composition of fatty acid were measured by gas chromatography(GC), amino acids were measured by high performanced liquid chromatography (HPLC), and mineral wasmeasured by atomic absorption spectrophotometer (AAS). The sea hare contained 9 essential amino acidsand 6 non essential amino acids. The highest essential amino acid was arginine (1.61%) while the highestnon essential amino acids was glycine (3.02%). Sea hare contained 26 fatty acids such as saturated fattyacids 5.33%, monounsaturated fatty acids 2.11% and polyunsaturated fatty acids 4.10%. The high mineralwas calcium 68100 mg/kg
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
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
Optimasi Uji Difusi Kombinasi Testosteron Undekanoat (TU) dan Medroksi Progesteron Asetat (MPA) dalam Sediaan Mikroemulsi
Full text linkUji difusi kombinasi testosteron undekanoat (TU) dan medroksi progesteron asetat
(MPA) dalam sediaan mikroemulsi yang telah dilakukan belum menunjukkan profil difusi yang optimal.
Penelitian ini bertujuan untuk mengoptimasi medium difusi dan kinetika pelepasan sediaan
mikroemulsi TU dan MPA. Parameter yang dioptimasi dalam penelitian ini adalah medium difusi
yaitu menggunakan medium NaCl fisiologis, phosphate buffer saline (PBS) dan isopropanol-air (1:9).
Pengujian difusi dilakukan dengan menggunakan alat Franz Diffusion Cell dan otot paha tikus jantan
Sprague-Dawley sebagai membran difusi yang dilakukan selama 18 jam. Hasil uji difusi dianalisis
dengan kromatografi cair kinerja tinggi (KCKT) pada kondisi optimum dengan fase gerak metanolasetonitril
(90:10), kolom C18, laju alir 1,2 ml/menit, volume injeksi 20 μl dan menggunakan detektor
UV-Vis pada panjang gelombang 243 nm. Hasil analisis menunjukkan medium difusi yang paling
optimum adalah isopropanol-air (1:9). Kinetika pelepasan sediaan tersebut mengikuti kinetika orde
nol dengan nilai r = 0,9913 untuk TU dan nilai r = 0,9777 untuk MPA
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
- …
