1,721,064 research outputs found
Desarrollo y escalado del proceso de producción de un queso de pasta blanda light funcional debido a la incorporación de fitoesteroles y alfa-tocoferol
No full textThe objective was to study the shelf life and monitor the oxidative parameters of salut light cheeses added with phytosterols (EF) and natural tocopherols (TF) produced on a pre-commercial industrial scale, which were obtained in the SME plant. CDS – Lácteos Capilla del Señor S.A. (Villa María, province of Córdoba). The evaluation was carried out on light functional cheese that contained 2.2 g of free EF in a 60g portion. Given that the EF used provide a high concentration of polysaturated fatty acids, an excess of lipids susceptible to oxidation is generated. To prevent this, the addition of alpha-tocopherol from a natural source as an antioxidant was chosen.El objetivo fue el estudio de la vida útil y el seguimiento de los parámetros oxidativos de quesos por salut light adicionados con fitoesteroles (EF) y tocoferoles naturales (TF) elaborados en escala industrial precomercial, los que fueron obtenidos en la planta de la PyME “CDS – Lácteos Capilla del Señor S.A. (Villa María, provincia de Córdoba). La evaluación se realizo sobre queso funcional light que contenía 2,2 g de FE libres en una porción de 60g. dado que los FE utilizados aportan alta concentración de ácidos grasos polisaturados, se genera un exceso de lípidos susceptibles a sufrir oxidación. Para prevenir esto, se optó por el agregado de alfa-tocoferol de fuente natural como antioxidanteInstituto de Investigación de Tecnología de Alimentos (ITA)Fil: Rizzo, Sergio Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Rizzo, Sergio Anibal. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; ArgentinaFil: Rossetti, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Rossetti, Luciana. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; ArgentinaFil: Descalzo, Adriana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Descalzo, Adriana Maria. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; Argentina
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
Evaluación de parámetros oxidativos y contenido de alfa y gama tocoferol en chips de queso mozzarella liofilizados envasados en distintas atmósferas
No full textPoster y resumenEl objetivo principal del presente trabajo fue la evaluación de los parámetros oxidativos y la determinación del contenido de alfa y gama tocoferol de chips de mozzarella liofilizados elaborados a partir de queso mozzarella madurado producido a escala industrial. El queso mozzarella se feteó y cortó en discos de 4 cm de diámetro por 1.5 mm de espesor, se congeló a -80°C y liofilizó. Una vez finalizado este proceso, se procedió al envasado de los chips de mozzarella en bolsas de film compuesto por BOPET metalizado 12 micrones + PEBD 20 micrones de espesor. Las muestras se trataron bajo diferentes atmósferas en bolsas individuales (n=24) conteniendo 12 chips cada una. Un tratamiento consistió en el envasado bajo atmósfera de nitrógeno puro (N) y el otro bajo vacío completo (RPA). Posteriormente, se realizó el seguimiento de parámetros oxidativos por medio de la técnica de TBARS y VP como así también el contenido de alfa y gama tocoferol a los meses 0, 3, 6, 9 y 12 de almacenamiento a temperatura ambiente.The main objective of the present work was the evaluation of oxidative parameters and the determination of alpha and gamma tocopherol content of freeze-dried mozzarella chips produced from industrially manufactured matured mozzarella cheese. The mozzarella cheese was sliced and cut into discs of 4 cm in diameter by 1.5 mm in thickness, frozen at -80°C, and then freeze-dried. Once this process was completed, the mozzarella chips were packaged in bags made of a composite film consisting of 12 micron metallized BOPET + 20 micron thick LDPE. The samples were treated under different atmospheres in individual bags (n=24), each containing 12 chips. One treatment consisted of packaging under a pure nitrogen atmosphere (N) and the other under complete vacuum (RPA). Subsequently, the oxidative parameters were monitored using the TBARS and PV (Peroxide Value) techniques, as well as the alpha and gamma tocopherol content at months 0, 3, 6, 9, and 12 of storage at room temperature.Instituto de Investigación Tecnología de Alimentos (ITA)Fil: Rizzo, Sergio Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Rizzo, Sergio Anibal. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; ArgentinaFil: Rossetti, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Rossetti, Luciana. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; ArgentinaFil: Descalzo, Adriana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina.Fil: Descalzo, Adriana Maria. Instituto de Ciencia y Tecnología de los Sistemas Alimentarios Sustentables (ICyTeSAS) UEDD INTA-CONICET; Argentina
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
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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