1,720,963 research outputs found
Allevamento intensivo della capra da latte. Indagine preliminare sulle caratteristiche chimiche e di caseificazione del latte
No full textImpiego di diete complete a diverso tenore proteico nell’alimentazione di capre da latte
No full textIllicit treatments in cattle and urinary 6beta-hydroxycortisol/cortisol ratio
No full textDexamethasone (DXM) is often illegally used as a growth promoter. To identify indirect biomarkers of illicit treatments, the urinary ratio between 6beta-hydroxycortisol (6beta-OHF) and cortisol (F) was measured in urines obtained from bulls experimentally treated per os and intramuscularly (i.m.) with different DXM dosages. Dexamethasone, given per os at low doses elicited an early and lasting significant reduction of 6beta-OHF/F. No significant variations were seen in urines from bulls given DXM intramuscularly. These results suggest 6beta-OHF/F as a rapid, non-invasive, screening test for oral, low-dose, long-term corticosteroid treatment in cattle. Further studies are required to go deep inside the biochemical and molecular events underlying such an effec
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
Rapid dioxin-like polychlorinated biphenyls (DL-PCBs) and hexachlorobenzene (HCB) determination in fish by HPLC-GC-MS negative chemical ionization mode
No full textThe correct identification and quantification of mono-ortho and coplanar congeners allows the attribution of the WHO-TEFs (Van den Berg et al., 1998) and to calculate the TEQs. A rapid analytical method for PCBs and hexachlorobenzene determination was tuned. Briefly it consisted of: a) sample previously lyophilized was submitted in a ratio 1/10 (w/v) to solvent fat extraction (hexane/acetone, 50/50 v/v); b) the fat recovered was diluted 1/5 with 13C HCB and PCBs isotopes; c) to remove fat and other source of interference, HPLC pre-separation was achieved using a silica column and a three way valve; d) the GC separation was conducted by on-column injection into ZB5MS column (Zebron, 60 m, 0.25 mm i.d., 0.25 μm film thickness) while detection operated in negative chemical ionization SIM mode using methane as reagent gas. As regard quality analysis percent recovery was nearly 100%, repeatability was <10% (as relative standard deviation) and LOQ was 0.2 pg g-1 (w.w.). Farm reared and wild fish, coming from several areas of Mediterranean Sea, were analyzed. The sum of total DL-PCBs ranged from 0.22 to 6.33 ng g-1 (w.w.) for farm reared fish and from 0.04 to 12.96 ng g-1 (w.w.) for wild fish
EFFECT OF RECOMBINANT BOVINE SOMATOTROPIN (rbST) ON THE FATTY ACID COMPOSITION OF MILK FAT IN DAIRY COWS
No full textProceeding of the XXXI International Symposium of Società Italiana per il Progresso della Zootecnica. G. Enne and GF Greppi editors. Elsevier, Pari
Development of a rapid and sensitive analytical method (on-line HPLC-GC/ECD) for polychlorinated biphenyls (PCBs) detection in fish”.
No full textApplicazione di un metodo semplificato per estrarre la frazione lipidica al fine di determinare il profilo acidico in latte e derivati
No full textVariations 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
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