1,721,012 research outputs found
Vågen pekar på övervikt - balansen mellan fettsyrorna omega 3 och omega 6
No full textBirgitta Strandvik, professor i pediatrik, Sahlgrenska akademin. En akademisk kvart. Populärvetenskapliga lunchföreläsningar på Wettergrens bokhandel arrangerade av Göteborgs universitet
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
Is the ENaC Dysregulation in CF an Effect of Protein-Lipid Interaction in the Membranes?
No full textWhile approximately 2000 mutations have been discovered in the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR), only a small amount (about 10%) is associated with clinical cystic fibrosis (CF) disease. The discovery of the association between CFTR and the hyperactive epithelial sodium channel (ENaC) has raised the question of the influence of ENaC on the clinical CF phenotype. ENaC disturbance contributes to the pathological secretion, and overexpression of one ENaC subunit, the β-unit, can give a CF-like phenotype in mice with normal acting CFTR. The development of ENaC channel modulators is now in progress. Both CFTR and ENaC are located in the cell membrane and are influenced by its lipid configuration. Recent studies have emphasized the importance of the interaction of lipids and these proteins in the membranes. Linoleic acid deficiency is the most prevailing lipid abnormality in CF, and linoleic acid is an important constituent of membranes. The influence on sodium excretion by linoleic acid supplementation indicates that lipid-protein interaction is of importance for the clinical pathophysiology in CF. Further studies of this association can imply a simple clinical adjuvant in CF therapy
Emeritus 3
No full textVetenskapens seniorer om forskningen, karriären och livet.
Program 3.
Programledare: Mats Oscarson, professor emeritus i pedagogik, doktor i engelska vid Göteborgs universitet 1973, professor i pedagogik vid Göteborgs universitet 2001.
Medverkande:
Birgitta Strandvik, professor emerita i pediatrik, medicine doktor vid Karolinska institutet 1973, professor i pediatrik vid Göteborgs universitet 1990.
Anders Enemar, professor emeritus i zoologi, doktor i zoologi vid Göteborgs universitet 1961, professor i zoologi vid Göteborgs universitet 1966.
Göran Kjellmer, professor emeritus i engelska, doktor i engelska vid Göteborgs universitet 1971, professor i engelska vid Göteborgs universitet 1994.
Producerat 2007. Reporter: Anette Carlsson Fotograf: Pamela Ericsson, Laila Östlund Redigering: Anton Svendse
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
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