29,292 research outputs found

    Visualization of toner ink adsorption at bubble surfaces

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    Flotation deinking involves interactions between inks particles and bubbles surfaces. These interactions are very difficult to observe directly or to quantify in bench-scale experiments or mill operations, making it difficult to evaluate effects of process conditions such as bubble size and solution chemistry on deinking efficiency. This paper presents images and measurements of toner ink interactions with bubble surfaces in laboratory-scale flotation processes. Stable adsorption of toner ink was observed at surfaces of stationary and suspended bubbles for several system chemistries. Interactions of toner particles and bubbles were quantified by high magnification and high temporal resolution digital videos obtained in bubble flow facilities creating both stationary and flowing bubbles. Large (>200 micron), flat toner particles adsorbed to bubble surfaces by single contact points. Smaller toner particles formed very stable complexes in fatty acid chemistries. Desorption of toner ink from bubble surfaces was not observed, even for vigorous flows. Bubbles were observed to be fully covered with toner after 4 minutes of residence time in the suspending bubble flow facility. Initial estimates indicate that bubbles with diameters of approximately 1 mm carry more than 1 mg of ink per bubble

    Supplemental Material – Enablers and barriers to military veterans seeking help for mental health and alcohol difficulties: A systematic review of the quantitative evidence

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    Supplemental Material for Enablers and barriers to military veterans seeking help for mental health and alcohol difficulties: A systematic review of the quantitative evidence by Catherine Hitch, Paul Toner and Cherie Armour in Journal of Health Services Research & Policy.</p

    Exploratory factor analysis of the post-traumatic growth inventory among individuals in recovery from addiction

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    Background: the Post-Traumatic Growth Inventory (PTGI) is a widely used measure of psychological growth following adversity, although it has yet to be validated for use with those in recovery from substance addiction. The present study was designed to explore the latent structure, reliability, and validity of the inventory in this new population. Method: the PTGI was completed by 485 adults (71.8% female) in recovery from addiction. Exploratory Factor Analysis, supported by parallel analysis, was used to explore the latent structure of the PTGI. Cronbach’s alpha reliability coefficients and item-total correlations were calculated to assess internal reliability of the PTGI and its subscales. Concurrent and convergent validity were also examined by the relationship between the PTGI and measures of growth, social support and rumination. Results: analysis supported a two-factor structure, explaining 60.28%of the common variance. The two subscales appeared to capture growth related to: 1) changed life direction and self-perception, and 2) relationships with others, including God. A strong positive correlation between the subscales in the two-factor solution, and the presence of a single-factor solution explaining 52.31% of the variance provide evidence for a single latent ‘growth’ construct with two underpinning dimensions. . All scales demonstrated excellent reliability, and concurrent and convergent validity. Conclusions: this study supports the reliability and validity of the PTGI for use with those in addiction recovery. Evidence suggests psychological growth in this population has an underlying core; underpinned by growth in recovery in two domains

    Innovation and Technology: Higher-Education & Economic Competitiveness in the Greater Minneapolis-Saint Paul Region

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    Frazier, Ambreasha; Gleason, Elizabeth; Lambrecht, Tom; Toner, Brandon; Warren, Lisa. (2012). Innovation and Technology: Higher-Education & Economic Competitiveness in the Greater Minneapolis-Saint Paul Region. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/123594

    Post-traumatic growth in addiction recovery - quantitative dataset in support of the Southampton Doctoral Thesis &#39;Exploring and measuring psychological growth in addiction recovery&#39;

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    Quantitative data collected from online cross-sectional survey using the Qualtrics platform. Data stored as an SPSS file (using SPSS v.28 software). </span

    Conversations with Paul Auster

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    Interviews with the author of The New York Trilogy, In the Country of Last Things, and The Brooklyn Follies.Cover -- Contents -- Introduction -- Chronology -- Translation -- Interview with Paul Auster -- An Interview with Paul Auster -- Memory's Escape-Inventing the Music of Chance: A Conversation with Paul Auster -- The Making of Smoke -- The Manuscript in the Book: A Conversation -- An Interview with Paul Auster -- The Futurist Radio Hour: An Interview with Paul Auster -- Paul Auster: Writer and Director -- Off the Page: Paul Auster -- Paul Auster: The Art of Fiction -- Jonathan Lethem Talks with Paul Auster -- A Conversation with Paul Auster -- The Making of The Inner Life of Martin Frost -- Interview: Paul Auster -- A Connoisseur of Clouds, a Meteorologist of Whims: The Rumpus Interview with Paul Auster -- Interview: Paul Auster on His New Novel, Invisible -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- Y -- ZInterviews with the author of The New York Trilogy, In the Country of Last Things, and The Brooklyn Follies.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries

    Portrait of Paul Ham at the National Library of Australia, 15 November 2011 /

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    Title from nformation supplied by photographer.; Part of the collection: Podcast photograph of author Paul Ham at the National Library of Australia, 15 November 2011.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia

    Hydrophobicity and elemental composition of laser-printed toner films

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    journal articleLaser-printed toner films on a polymer support were treated with alkaline (NaOH) aqueous solutions at elevated temperature (80-85° C). These toner films were examined with a sessile-drop contact-angle measurement technique in order to establish the hydrophobicity of the toner surface. Also, X-ray photoelectron spectroscopy (XPS) was used to analyze changes in elemental composition of the toner surface

    Author, Dr. Paul Wehr. c. 1980

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    Dr. Paul Wehr, as he appeared c. 1980. Dr. Wehr was a professor of history at UCF and the author of Like a Mustard Seed: the Slavia Settlement (1982 - Mickler Publishing House), a history of the early years of Slavia and St. Luke\u27s history.https://stars.library.ucf.edu/cfm-images/1413/thumbnail.jp

    Michael Rodriguez interviews author Paul Clemens

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    Author Paul Clemens talks about his book "Made in Detroit," the genre of memoir, and writing about race. Clemens is interviewed by Michigan State University Librarian Michael Rodriguez for the MSU Libraries' Michigan Writers Series. Held in the MSU Main Library
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