2,024 research outputs found

    Interview with Jacqueline DeGroot

    No full text
    Jacqueline DeGroot, author of Climax and Worth Any Price, discusses how she came to be a writer, her writing process and sources of inspiration, and her experiences with self-publishing

    Jacqueline Woodson: 2023 Irma Black Award Silver Medal Acceptance Speech

    No full text
    Author Jacqueline Woodson gives an acceptance speech for The World Belonged to Us, illustrated by Leo Espinosa (Penguin)https://educate.bankstreet.edu/irma_black_awards/1011/thumbnail.jp

    Leslie Behm interviews essayist and fantasy writer Jacqueline Carey

    No full text
    Essayist and fantasy writer Jacqueline Carey talks about the meaning of the title of her Kushiel Trilogy, how she became an author, her work in progress. She also gives advice to aspiring authors. Carey is interviewed by Michigan State University librarian Leslie Behm. Part of the MSU Libraries' Michigan Writers Series. Held in the MSU Main Library

    sj-pdf-1-ome-10.1177_00302228211045288 - Supplemental material for Exploring the Use of Virtual Funerals during the COVID-19 Pandemic: A Scoping Review

    No full text
    Supplemental material, sj-pdf-1-ome-10.1177_00302228211045288 for Exploring the Use of Virtual Funerals during the COVID-19 Pandemic: A Scoping Review by Andie MacNeil, Blythe Findlay, Rennie Bimman, Taylor Hocking, Tali Barclay and Jacqueline Ho in OMEGA—Journal of Death and Dying</p

    Klebsiella pneumoniae: a progression to multidrug resistance

    No full text
    Klebsiella pneumoniae is a common cause of nosocomial and community-acquired infections, and the increasing incidence and prevalence of antibiotic resistant strains is proving to be particularly problematic to clinicians. K. pneumoniae is capable of employing a multitude of mechanisms by which to confer resistance to most available antibiotics. The carbapenem antibiotics are usually reserved for the treatment of complicated or multidrug resistant (MDR) K. pneumoniae infections. The recent emergence of not only MDR but also pan-drug resistant (PDR) K. pneumoniae strains has signified that it is now more important than ever to understand the mechanisms by which these strains confer resistance so that we may find ways to combat or hinder this progression. This project aimed to investigate the regulation of the transcriptional activator RamA, its ability to confer a MDR phenotype, and the mechanisms employed by K. pneumoniae to confer levels of carbapenem resistance sufficient to result in therapy failure. The analysis of a panel of K. pneumoniae strains, containing both RamA expressers and non-expressers, demonstrated that the overexpression of RamA was sufficient to confer an MDR phenotype. Two compounds, chlorpromazine (CPZ) and tigecycline, were shown to act as inducers of ramA, romA and acrA transcription. CPZ exhibited synergy with the antibiotics chloramphenicol, norfloxacin and tetracycline, all of which are known substrates of the AcrAB efflux pump. The current lack of novel classes of antimicrobials in development indicate a potential for a compound, such as CPZ, to be developed and exploited for clinical use. The ability of both CPZ and tigecycline to cause mutations within ramR however, indicate that both compounds may have the ability to select for efflux mutants as a result of their ability to upregulate ramA, which in turn causes the upregulation of the AcrAB efflux pump. The regulation of RamA by the upstream gene ramR, which encodes a TetR family protein was investigated in K. pneumoniae isolates. Sequencing of the ramR genes revealed that strains exhibiting an MDR phenotype commonly contained mutations within their gene sequences. The complementation of a wildtype ramR into a strain containing a 32 amino acid deletion within its ramR, was shown to increase susceptibility to various antibiotics of different classes, and additionally downregulate the expression of ramA, romA and acrA. CPZ, ciprofloxacin and tigecycline K. pneumoniae mutants were shown to exhibit increased MICs to a broad spectrum of antibiotics with respect to their parent strains, and possess mutations within their ramR genes. Complementation of the wildtype ramR resulted in partial reversion to the parental phenotypes, indicating another mechanism must also be involved in conferring the MDR phenotypes. These studies indicated that RamR plays an important role as a negative regulator of RamA, but also that it is not the sole regulator. The development of reduced susceptibility to the carbapenems was investigated in two clinical strains of K. pneumoniae, K1 and K2, isolated from the urine of a single patient at different stages of antibiotic therapy. The strains were shown to exhibit similar resistance phenotypes with the exception of their susceptibilities to the carbapenems. PCR and phenotypic analyses revealed that neither strain contained any carbapenemases or AmpC enzymes, but both contained OXA-1, SHV-1 TEM-1 and CTX-M-15. Analysis of their OMP profiles indicated that both strains lacked OmpK35, and K2 additionally lacked OmpK36. Mutation studies showed that the phenotype and OMP profile exhibited by K2 could be achieved in K1 via single step mutations using ertapenem, imipenem or meropenem. Susceptibility testing of CTXM- 15 clinical strains showed that strains containing CTX-M-15 showed reduced activity against ertapenem in the presence of clavulanic acid. These studies indicated a potential role for CTX-M-15 in conferring reduced susceptibility to the carbapenems when found in conjunction with altered permeability and active efflux. The mechanisms of antibiotic resistance employed by K. pneumoniae are numerous and complex. This work highlights several of these mechanisms and, more importantly, how they can work in synergy with one another to devastating consequences

    First person – Jacqueline Weidner

    No full text
    First Person is a series of interviews with the first authors of a selection of papers published in Biology Open (BiO), helping early-career researchers promote themselves alongside their papers. Jacqueline Weidner is first author on ‘Hormones as adaptive control systems in juvenile fish’, published in BiO. Jacqueline conducted the research described in this article while a PhD student at the University of Bergen, Norway. She is now an assistant professor at the Western Norway University of Applied Sciences, Norway, investigating sexual selection and modelling of evolutionary patterns

    Jacqueline Risset. Scritture dell’istante

    No full text
    “Born on 25th May 1936. Two specific desires: not to become an adult, and to write”. Jacqueline Risset (1936-2014) was a translator from French (Ponge, Sollers, the Tel Quel poets) and Italian (Dante, Machiavelli, Balestrini), as well as a well-known scholar for her work on Scève, Proust and Bataille. The aim of this volume is to analyse Risset’s poetic work, from the beginnings with textual writing in the experimentalism of Tel Quel, through a trajectory that, crossing Dante and Stilnovism through the translation of the Divine Comedy, led the author to the elaboration of a poetics centred on “privileged instants” that open “to the elsewhere”

    Dialogue of the Western World 2: Antigone, April 25, 1972

    No full text
    Dialogue of the Western World 2: Antigone, April 25, 1972. With an introduction by Greg Otto, the host (Dr. Robert Goldwin) discusses "Antigone" with author Jacqueline Wheldon and three students from St. John's College, Joanne Morris, Christine Constantine, and Michael Jordan

    Are We There? Depends on View of the Economy

    No full text
    Author\u27s biography: Jacqueline K. Eastman is an associate professor of marketing at Georgia Southern University. She may be reached at [email protected]
    corecore