1,720,974 research outputs found
The heat shock protein TRAP1 is involved in translational control: a novel role in the quality control of mitochondrial proteins
No full textThe heat shock protein TRAP1 is involved in translational control: a novel role in the quality control of mitochondrial proteins.
No full textGoing 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
New insights into TRAP1 pathway
No full textTumor Necrosis Factor Receptor-Associated Protein 1 (TRAP1) is a mitochondrial heat shock protein involved in the protection from DNA damages and apoptosis induced by oxidants and several other stress conditions. Despite the well-characterized role in the regulation of mitochondrial integrity, through the interaction with cyclophilin D, a mitochondrial permeability transition pore regulator, several recent studies contributed to draw a more complex "picture" of the TRAP1 pathway: most of these updated functions arise from the identification of novel specific TRAP1 "client" proteins and from the recent discovery of multiple subcellular localizations/functions for this chaperone. This review briefly highlights some general features of TRAP1, and among others its role in cytoprotection, summarizing many different functions, which contribute to its protective role upon several stress inducers. Of note, particular emphasis is given to the recent findings on the regulation of Endoplasmic Reticulum stress and protein quality control by TRAP1, as well as to its role in regulating calcium homeostasis throughout its client protein Sorcin. Starting from the above observations a preliminary "TRAP1 signature" is provided and a new intriguing and interesting field to explore is discussed. Several questions are still open given the complexity of such mechanisms. However, by translating these recent insights at the molecular and cellular levels into personalized individual anticancer treatments, designing novel strategies based on the simultaneous inhibition of multiple tumor-specific pathways, and contemplating subcellular-targeted approaches aimed at reverting drug resistance and improving antitumor activity the struggle to combat cancer become more successful and closer
TRAP1 and the calcium binding protein sorcin interact in mitochondria and protect cells against apoptosis induced by antiblastic agents.
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
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
- …
