1,720,966 research outputs found
Interpretazione delle Immagini ottenute mediante Video e Fototrappolaggio quale strumento per il monitoraggio dei Grandi Carnivori
Full text link
Is milk cortisol a biomarker of subclinical mastitis and acute phase response in dairy cows?
No full textThe aim of the trial was to assess if the concentration of the milk cortisol is related to health disorders and plasma acute phase response in lactating cows. One thousand and forty one lactating cows were sampled from 6 Simmental (IS) and 4 Holstein (IH) commercial farms in Italy. For the study, lactating cows were preferentially chosen from 70 to 250 days in milk (DIM) and with parity from 2 to 6. The day of official milk recording, 100 ml of milk samples were collected from each cow at the morning milking. An aliquot was used for milk composition and for somatic cell count (SCC) determination with mid infrared spectroscopy. A second aliquot of milk was analysed for -hydroxybutyrate (BHB) and cortisol. Blood was sampled after the morning milking and before the morning meal and plasma samples were analyzed for total protein (TP), albumin, globulin, ceruloplasmin (CuCp), haptoglobin (Hp) and paraoxonase (PON). The day of sampling, the body condition score (BCS) was recorded. Cows were classified in 3 classes according to SCC: 1, SCC400,000 cells/ml. Statistical analysis considered class of SCC and breed as fixed factors and DIM as covariate. BCS was significantly lower (P<0.05) for both breeds in class 3 and, as expected, IS cows had higher values (P=0.000) than IH cows. Milk cortisol was significantly higher (P<0.05) in class 3 for both breeds and no differences were shown between breeds (Figure 1). The SCC were also related to markers of acute phase response. Positive acute phase protein (CuCp and HP) and globulins had significantly (P=0.000) higher plasma values in class 3. Instead, albumins and PON content resulted significantly lower (P=0.000) in this class. Moreover, TP, globulins and Hp were significantly (P<0.05) higher and albumins and PON were significantly (P<0.01) lower for IH cows respect to IS cows. The preliminary data indicate that the variation of milk cortisol concentration parallels acute phase response indicators in plasma. The results of this study suggest that milk cortisol can be a candidate index to diagnose subclinical health disorders, in particular mastitis, in mid lactating cows
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
- …
