23,274 research outputs found

    The microbial zoo in the C. elegans intestine: Bacteria, fungi and viruses

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    Press freedom has become one of the major challenges facing Journalism practice in the world. This paper explores the factors hindering press freedom in Nigeria using some relevant examples. The researcher used the qualitative method of research; using secondary data comprising of books and journals. The study is embedded on social responsibility theory. The study reveals that there are a lot of factors in Nigeria that hinders press freedom ranging from secrecy, legal pressure, direct censorship and force among others. Findings also reveal that Nigerian press freedom is a paradox and only exist on paper i.e. in the constitution but not in practice. The study recommends that since press freedom is granted in the constitution of Nigeria, there should be statutory backup and in order not to hinder press freedom, journalist should be allowed to have access to government sources and records so long as it will not bring chaos to the society at large

    Graft Copolymerization of Methacrylic Acid, Acrylic Acid and Methyl Acrylate onto Styreneā€“Butadiene Block Copolymer

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    Methyl acrylate, methacrylic acid, and acrylic acid have been graft copolymerized onto styreneā€“butadiene block copolymer. All three monomers react through the macroradical interacting with the double bond of butadiene. The site of reaction has been established by infrared spectroscopy. For methyl acrylate every unit of the styreneā€“butadiene block copolymer is grafted but only a small fraction is grafted when the acids are used. The difference apparently lies in the fact that the reaction with the ester is homogeneous while with the acids the reactions are heterogeneous

    Commonality in Misvaluation, Equity Financing, and the Cross Section of Stock Returns

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    Behavioral theories suggest that investor misperceptions and market mispricing will be correlated across firms. This paper uses equity financing to identify comovement in returns and commonality in misvaluation. A zero-investment portfolio (UMO, Undervalued Minus Overvalued) built from repurchase and new issue stocks captures excess comovement in general stock returns relative to a set of multi-factor models. Adding UMO to the 3-factors makes the alphas insignificant for portfolios with extreme size and book-to-market, or based on M&A, convertible bond issuance, and dividend initiation, resumption, and omission. The loadings on UMO incrementally predict the cross-section of returns on portfolios as well as individual stocks. Further evidence is consistent with the UMO loading proxying for the common component of a stock's misvaluation.Comovement, equity financing, new issue, repurchase, systematic mispricing, return predictability

    A Financing-Based Misvaluation Factor and the Cross Section of Expected Returns

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    Behavioral theories suggest that investor misperceptions and market mispricing will be correlated across firms. We use equity and debt financing to identify common misvaluation across firms. A zero-investment portfolio (UMO, Undervalued Minus Overvalued) built from repurchase and new issue firms captures comovement in returns beyond that in some standard multifactor models, and substantially improves the Sharpe ratio of the tangency portfolio. Loadings on UMO incrementally predict the cross-section of returns on both portfolios and individual stocks, even among firms not recently involved in external financing activities. Further evidence suggests that UMO loadings proxy for the common component of a stock's misvaluation.Misvaluation, financing, new issues, repurchase, factor models, market efficiency, behavioral finance

    Finding Relevant Answers in Software Forums

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    Abstractā€”Online software forums provide a huge amount of valuable content. Developers and users often ask questions and receive answers from such forums. The availability of a vast amount of thread discussions in forums provides ample opportunities for knowledge acquisition and summarization. For a given search query, current search engines use traditional information retrieval approach to extract webpages containin
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