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Gradiente di espressione decrescente dei geni a globinici di pecora in aplotipi aa e aaa
No full textb) Vestri R., Yang F., Di Gregorio P., Rando A., Pieragostini E., Montemurro O. (1988) The aD allele of sheep a globin is carried on a chromosome with three or four a loci
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Detection by revesed- phase HPLC of trace amounts of the a113 His globin chain in a sheep homozygous for a quadruple a-globin gene chromosome
No full textDetection by reversed-phase HPLC of trace amounts of the alpha113His globin chain in a sheep homozygous for a quadruple alpha-globin gene chromosome
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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
Distribution and respiratory properties of sheep hemoglobins A and B containing the II alphaHis chain
No full textWe recently reported the discovery of a second alpha chain, differing from the common alpha chain by the replacement 113 (or 114) Leucine leads to Histidine, in the hemoglobin of several domestic sheep. The ratio of the common alpha chain, here called alpha Leu, to the variant one, here called II alpha His, was either about 1.8:1 or about 4:1. In this study, the distribution of the II alpha His chain in 217 sheep from 8 domestic breeds was investigated: the II alpha His chain is present in 30% of animals from different breeds. Oxygen equilibrium determination showed no differences in the oxygen affinity, the Bohr effect and the heme-heme interaction of Hb A (alpha 2 beta 2A) and Hb B (alpha 2 beta 2B), each containing one of the three possible alpha chain phenotypes
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