1,720,974 research outputs found
Modulation of the texture of dairy acid gels by addition of milk protein aggregates
No full textLa texture des produits laitiers est un paramètre clé influençant les choix des consommateurs. Dans les systèmes acides de type yaourt, l’ajout d'agrégats protéiques permettrait le développement de produits aux textures innovantes ne contenant que des ingrédients laitiers. Le but de ce travail est de mettre en évidence et de comprendre les mécanismes de texturation d’émulsions laitières acidifiées modèles, par des agrégats protéiques de différentes composition, morphologie et taille, en les comparants avec les systèmes classiques supplémentés en protéines sériques. Pour cela, des gels laitiers gras acidifiés par la GDL ont été fabriqués en faisant varier la concentration des différents d’agrégats. L’ajout de protéines sériques et d’agrégats fractals permet d’augmenter la fermeté des gels et de diminuer leur synérèse. Alors que l’ajout d’agrégats sphériques et denses et d’agrégats mixtes (caséinesprotéines sériques) ne modifie pas la texture. Les agrégats ont un rôle dans la phase continue. Le développement de la surface interfaciale en augmentant la pression d'homogénéisation et la fraction de matière grasse peut permettre l’adsorption d’agrégats à l’interface des gouttelettes de matière grasse et augmenter la fermeté. La nature des agrégats influence les interactions s’établissant avec le réseau de caséines au cours de l’acidification. Parmi les interactions formées, des ponts disulfures entre les protéines sériques ou les agrégats fractals et le réseau ont été mis en évidence. La grande variété de texture obtenue dans ces systèmes permet d’envisager la création de produits innovants et plus particulièrement enrichis en protéines pour cibler certains types de population.The texture of dairy products is a key parameter influencing consumer choices. In yogurt-type acid systems, the addition of milk protein aggregates would allow the development of products with innovative textures containing only dairy ingredients. The aim of this work is thus to highlight and understand the texturizing mechanisms of acidified models dairy emulsions through protein aggregates of different compositions, morphologies and sizes, by comparing them with conventional systems supplemented with whey proteins. For this purpose, fatty dairy gels acidified with GDL were manufactured by varying the concentration of different types of aggregates. The addition of whey proteins and fractal aggregates increases the strength of the gels and reduces their syneresis. Whereas the addition of compact spherical and mixed (casein-whey protein) aggregates does not modify the texture. Aggregates have a role in the continuous phase. The development of the interfacial surface by increasing the homogenization pressure and the fat fraction can allow the adsorption of aggregates at the interface of the fat droplets and increase the firmness. The nature of the aggregates influences interactions formed with the casein network during acidification. Among the interactions formed, disulphide bridges between whey proteins or fractal aggregates and the network were highlighted. The large variety of texture obtained in these systems demonstrates that it is possible to create innovative and specific products, especially protein-rich ones, to target certain types of population
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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