86,613 research outputs found

    Triorganotin compounds as antimicrobial agents

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    Six triorganotin derivatives of thiolupinine(1-mercaptolupinane), 2-mercaptobenzoxazole and 2-mercaptobenzothiazole were prepared and tested against several bacteria, fungi and protozoa. Most compounds exhibited high activity against the tested microorganisms and particularly worth noting was the activity of triethyltin lupinylsulfide on Gram-negative strains. Triethylgermanium lupinylsulfide was also prepared but was devoid of action on the whole set of tested microorganims

    Gold(I) complexes as antimicrobial agents

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    Seven gold complexes were prepared and investigated for biocidal activity against Gram-positive and -negative bacteria, fungi and protozoa. All of them were active against the tested microorganisms with the exception of Pseudomonas aeruginosa. In many cases minimum inhibitory concentrations (MIC) were well below 1 mu g/ml. The activity is not simply related to the gold content. but also to the nature of both the phosphine and the aminothiol to which the metal is bound

    Variations on the Author

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    “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

    [Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]

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    Newspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
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