1,720,973 research outputs found
INHIBITORY EFFECT OF ASCORBIC ACID MICROEMULSION ON PHOTO-OXIDIZED VIRGIN COCONUT OIL
Get PDFThe effect of water-in-oil (w/o) microemulsion containing ascorbic acid on photo-oxidative stability of virgin coconut oil (VCO) was investigated. To optimize the formulation, w/o microemulsions were prepared using hydrophilic lipophilic balance (HLB) concept, consisted of ternary nonionic surfactants having low, medium, and high HLB values. From this optimum HLB number, the ratio of water, surfactant and oil was determined to obtain microemulsion areas. After optimization of the microemulsion system, the storage at room temperature, and the extreme condition were conducted for testing the microemulsion stability. Then, the stable formulas were used for delivering ascorbic acid. The solubility and photo-oxidative stability of ascorbic acid microemulsion were evaluated. The optimum formula of ascorbic acid microemulsion was applied into VCO at various concentrations (0, 1, 5, and 10% w/w). Samples were subjected to photo-oxidation under fluorescent light exposure of 4000 lux for up to 8 hours. Peroxide values (PVs) and p-anisidine values (p-AnVs) of the samples were measured at 1 hour interval. The results indicated that w/o microemulsion could be formed on the HLB number of 7. W/o microemulsion containing 75% oils need surfactant concentrations of ≥ 4.5 part of water, and if containing 77.78% oils, the surfactant concentration must ≥ 5.5 part of water. These microemulsions remained stable during storage at room temperature, even after centrifugation, but did not tolerate at high temperature. The maximum solubility of ascorbic acid in w/o microemulsion was 1%. Ascorbic acid microemulsion resistant to photo-oxidation and effective inhibits that reaction in VCO. This study confirmed that w/o microemulsion can act as ascorbic acid delivery system to disperse into VCO for inhibiting its’ quality deterioration due to photo-oxidation
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
PENGARUH PROPORSI TEPUNG SUKUN TERHADAP SIFAT ORGANOLEPTIK SERTA KANDUNGAN PROTEIN PRODUK BROWNIES KUKUS
No full textABSTRAK
Tujuan penelitian ini untuk (1) mengetahui perbedaan kualitas brownies kukus dari resep dasar dengan brownies kukus proporsi tepung sukun 5%, 10%, dan 15%, (2) kandungan protein pada brownies kukus. Penelitian ini termasuk jenis penelitian eksperimen murni. Desain eksperimen yang digunakan adalah desain penelitian Rancangan Acak Lengkap (RAL) dengan proporsi tepung sukun yang digunakan yaitu 0%, 5%, 10%, dan 15 % Populasi penelitian ini adalah tepung sukun. Sampel penelitian adalah brownies kukus presentase tepung sukun 5%, 10%, dan 15% yang diujikan kepada 30 panelis yaitu ibu PKK di dusun Sono Malangrejo. Hasil penelitian menunjukkan (1) ada perbedaan kualitas brownies kukus dari resep dasar dengan brownies kukus proporsi tepung sukun dilihat dari uji organoleptik dengan presentase 5%, 10%, dan 15%. (2) Uji kimia produk brownies kukus proporsi tepung sukun yang memiliki kandungan protein paling tinggi yaitu brownies kukus kode 497 (15%).
Kata Kunci: Proporsi, Tepung Sukun, Brownies Kukus
ABSTRACT
The purpose of this study was to (1) determine the difference in the quality of steamed brownies from the basic recipe with steamed brownies in the proportion of breadfruit flour 5%, 10%, and 15%, (2) the protein content in steamed brownies. This research is a type of pure experimental research. The experimental design used was a completely randomized design (CRD) with the proportions of breadfruit flour used, namely 0%, 5%, 10%, and 15%. The population for this study was breadfruit flour. The research sample was steamed brownies with a percentage of 5%, 10%, and 15% breadfruit flour which was tested on 30 panelists, namely PKK women in Sono Malangrejo hamlet. The results showed (1) there was a difference in the quality of steamed brownies from the basic recipe with steamed brownies in the proportion of breadfruit flour seen from organoleptic tests with a percentage of 5%, 10%, and 15%. (2) Chemical test of steamed brownie products, the proportion of breadfruit flour which has the highest protein content, namely steamed brownies code 497 (15%).
Keywords: Proportion, Breadfruit Flour, Steamed BrowniesTujuan penelitian yaitu (1) mengetahui perbedaan kualitas brownies kukus dari resep dasar dengan brownies kukus proporsi tepung sukun 5%, 10%, dan 15%, (2) kandungan protein pada brownies kukus, (3) tingkat kesukaan masyarakat terhadap sifat organoleptik. Penelitian ini termasuk jenis penelitian eksperimen murni. Populasi penelitian ini adalah tepung sukun. Sampel penelitian adalah brownies kukus presentase 5%, 10%, dan 15% yang diujikan kepada 30 panelis yaitu ibu PKK di dusun Sono Malangrejo yang bertujuan untuk mengetahui tingkat kesukaan brownies kukus. Hasil penelitian menunjukkan bahwa (1) ada perbedaan kualitas brownies kukus dari resep dasar dengan brownies kukus proporsi tepung sukun dilihat dari uji organoleptik dengan presentase 5%, 10% dan 15%. (2) uji kimia produk brownies kukus proporsi tepung sukun yang memiliki kandungan protein paling tinggi yaitu brownies kukus kode 497 (15%). (3) berdasarkan hasil uji tingkat kesukaan masyarakat dapat dijelaskan bahwa sebagian besar panelis menyukai warna, rasa, aroma, dan tekstur brownies kukus dengan perlakuan (0%) dan (5%)
Kata Kunci: Proporsi, Tepung Sukun, Brownies Kuku
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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