1,721,032 research outputs found
Ultraviolet inactivation and excision-repair in bacillus subtilus
Full text linkThis thcsis consists of a collection of 5 papers dealing with ultraviolet inactivation and excision-repair in the transformable bacterium 'Bacillus subtilis' specially with respect to transforming DNA. One of the main objectives was to study UV inacyivation of a number of transforming markers. To that purpose, a multiple auxotrophic mutant, strain 8G-5 was constructed, which served as as the recipient strain. ...
Zie: Summary
Genomics in Bacillus subtilis
Full text linkGenomics cioncerns the aquisition of knowledge of structure and funcyion of gemomes. The scope of genomics researxh is wide: it includes the determination of the nucleotide sequence of all of an organisms' DNA, the analysis of the information that resides in it, the assessment of the functions of the uncovered information and how these functions interact, and the study how and why genomes have evolved the way they did.
Zie: Summary
Structural plasmid instability in Bacillus subtilis
Full text linkPlasmiden zijn ringvormige DNA moleculen, die veelvuldig in prokaryote organismen worden aangetroffen. Gewoonlijk repliceren plasmiden onafhankelijk van het chromosoom van de cel waarin ze zich bevinden. Natuurlijke plasmiden blijken in de meeste gevallen niet essentieel te zijn voor de cel. Aangezien de meeste plasmiden in meerdere kopieen per cel aanwezig zijn, worden ze veel gebruikt in de moleculaire
klonering voor het verneerderen van bepaalde segmenten DNA, of van genen die interessante eiwitten specificeren. ...
Zie: Samenvatting
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
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