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Plasminogen activation system in milk from Friesian and Jersey cows: relationships with milk production and composition
No full textTo evaluate the effect of breed and stage of lactation on plasminogen activation system in milk from Friesian and Jersey cows and its relationships between the enzymatic system and milk production and composition, 8 Friesian and 8 Jersey cows kept in the same herd were used to provide milk samples throughout lactation (from calving to 9 months in milk). Individual milk yield was recorded monthly and individual milk samples were collected and analysed for fat, protein, casein, somatic cell count, plasmin (PL), plasminogen (PG) and plasminogen activator (PA) activities. Parameters of the function y(n)=anbecn which describes the lactation curve were estimated for each animal. Breed did not affect PL, PG and PA activities but PG/PL ratio resulted significantly lower in milk from Friesian cows than that from Jersey cows (3.97 vs 4.91). PL and PG activities increased significantly with advancing lactation. A significant negative correlation was observed between PA activity and casein/total protein ratio for Friesian cows (r=-0.32). The latter correlation for Jersey cows (r=-0.28) was not significant. The overall correlation coefficients between PA activity and the parameter c of lactation curve (descending phase to the dry period) (r=0.21) reached the significant threshold confirming the involvement of PA on the involution of the mammary gland
The genetic relationship of body weight and early-lactation health disorders in two experimental herds
No full textThe objectives of this study were to estimate genetic parameters for body weight (BW) and BW change (BWC) and genetic correlations of BW and BWC with diseases and genomic predicted transmitting abilities (PTA) of productive and conformation traits of Holsteins during the first 120 DIM
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
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