92 research outputs found

    Emerging Trends and Technologies in the Information Ecosystem, May 13, 2022

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    Presentations: "Improving Low Morale in Academic Libraries" by Teva Sweet; "Digital Images and Printing" by Jessica LemingMay’s Emerging Trends presentations provided tips on using technology for the creation and delivery of information. Teva Sweet presented "Improving Low Morale in Academic Libraries" and Jessica Leming discussed "Digital Images and Printing.” Teva’s presentation covered the following topics: outcomes of low morale; retention; institutional credibility; and shareholder satisfaction. She offered some ways to improve low morale at academic libraries. Some examples are: taking the time to know co-workers, create community, do climate surveys, and focus on work/life balance. In Jessica’s presentation, she discussed assisting researchers and scholars in digital images and printing. She covered standard PPI, TIFF vs JPEG, dye sublimation printing, and print quality for different printers and paper

    Acquisitions Driven by Stock Overvaluation

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    Overvaluation might drive a firm to use its stock to acquire another firm whose stock is not as overpriced. Though hypothetically desirable, these acquisitions create little, if any, value for acquirer shareholders. Two factors impede value creation for acquirer stockholders from these transactions (despite large differences in relative overvaluation at announcement): acquirers paying large premiums to targets, and investors’ correction of acquirer overvaluation during the bid period. Furthermore, acquirer CEOs obtain a large amount of new stock and option grants after acquisitions and realize a net gain in wealth, further suggesting that equity overvaluation increases agency costs and the resulting actions benefit managers more than shareholders (Jensen (2005))

    Bank Deposits and the Stock Market

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    Spreading the Word: New Collections at the Atlanta University Center, 2018

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    The Archives Research Center at Atlanta University Centers Robert W. Woodruff Library is pleased to announce the accessibility of fourteen collections of rare materials that document African American religion spanning from the 1880s to the 2000s. These unique collections include correspondence, sermons and speeches, research files, photographs, and audio and video recordings. The collections document theologians and scholars, as well as Christian and Islamic ideologies. They were donated by educators and family that understood the importance of keeping the materials close to the community from where they were generated. Thanks to a generous grant from the National Endowment for the Humanities, entitled Spreading the Word: Expanding Access to African-American Religious Archival Collections of the Atlanta University Center Robert W. Woodruff Library, the Librarys Archives Research Center and Digital Services Unit have digitized over 2,700 photographs, cassettes, and reel to reel audio and video formats. The grant team prioritized these audio and video collections due to the inherent instability of magnetic media and the decreasing availability of playback equipment, a situation archives all over the country are currently facing

    The feasibility of utilizing remotely sensed data to assess and monitor oceanic gamefish

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    There are no author-identified significant results in this report

    Hydration Mechanism of Portland Cement Prepared from Stonecoal Vanadium Slag

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    AbstractThis paper presents an objective study on the utilization of stone coal vanadium slag in preparing cement clinker. The hydrates and hydration mechanism of this cement were analyzed and studied by means of the hydration heat analysis, X-ray diffraction (XRD) and the differential thermal gravity (DTG) analysis. The results of experiments show that the hydration mechanism is similar to ordinary Portland cement. The hydration process can be divided into five stages: (I) initial period; (II) induction period; (III) acceleration period; (IV) deceleration period; (V) final period And the hydrates are basically the same as Portland cement, mainly containing the calcium silicate hydrates (C-S-H), ettringite (AFt), portlandite (CH). It is proved that stone coal vanadium slag can be used as siliceous materials to prepare cement clinker Furthermore, the addition of fine materials such as the waste and fly ash can accelerate cement hydration, which is the result of giving rise to water-to-cementitious ratio. On the other hand, the fine materials may provide the crystal nucleus for hydrates such as portlandite. Using the waste and fly ash to replace part of clinker can prepare series of cement, whose compositions and physical properties are fully complied with the requirements of national standard, and bring huge ecological and economic benefits

    The Reproducibility of Lists of Differentially Expressed Genes in Microarray Studies

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    Reproducibility is a fundamental requirement in scientific experiments and clinical contexts. Recent publications raise concerns about the reliability of microarray technology because of the apparent lack of agreement between lists of differentially expressed genes (DEGs). In this study we demonstrate that (1) such discordance may stem from ranking and selecting DEGs solely by statistical significance (P) derived from widely used simple t-tests; (2) when fold change (FC) is used as the ranking criterion, the lists become much more reproducible, especially when fewer genes are selected; and (3) the instability of short DEG lists based on P cutoffs is an expected mathematical consequence of the high variability of the t-values. We recommend the use of FC ranking plus a non-stringent P cutoff as a baseline practice in order to generate more reproducible DEG lists. The FC criterion enhances reproducibility while the P criterion balances sensitivity and specificity
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