14,377 research outputs found

    Bees collect polyurethane and polyethylene plastics as novel nest materials

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    Plastic waste pervades the global landscape. Although adverse impacts on both species and ecosystems have been documented, there are few observations of behavioral flexibility and adaptation in species, especially insects, to increasingly plastic-rich environments. Here, two species of megachilid bee are described independently using different types of polyurethane and polyethylene plastics in place of natural materials to construct and close brood cells in nests containing successfully emerging brood. The plastics collected by each bee species resembled the natural materials usually sought; Megachile rotundata, which uses cut plant leaves, was found constructing brood cells out of cut pieces of polyethylene-based plastic bags, and Megachile campanulae, which uses plant and tree resins, had brood cells constructed out of a polyurethane-based exterior building sealant. Although perhaps incidentally collected, the novel use of plastics in the nests of bees could reflect ecologically adaptive traits necessary for survival in an increasingly human-dominated environment.We thank Dr. Laurence Packer, Sheila Dumesh, Bahar Salehi and Erik Glemser for comments and discussion for the manuscript. Funding was provided by Dr. Packer’s NSERC Discovery Grant and an NSERC-CGS awarded to the first author. J. S. MacIvor conceived and implemented the study, found the bee nests and reared the larvae. A. E. Moore analyzed the M. campanulae cells. J. S. MacIvor compiled and wrote the manuscript, A. E. Moore collaborated on the methods. A. E. Moore provided the graphs for the figures. J. S. MacIvor imaged the brood cells. Both authors critically revised the manuscript and approved it for publication. Publication was made possible by the York University Libraries' Open Access Author Fun

    Father Andrew Mullen 1790-1818: a study in early nineteenth century spirituality

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    This thesis is laid out in three parts: Part I. The life and death of Andrew Mullen. The life is based, to a large extent, on a long letter to his mother, Catherine Mullen, dated 7 January 1810. The letter gives a definite insight into his spirituality based on his membership of the Archconfraternity of the Blessed Sacrament. There is a hint that he had a premonition of an early death. Part II. The burial of Andrew Mullen and the immediate cult to him This is based on documentary evidence. Part III. Most of this part is a catalogue of testimonies taken from 1993 onwards. Then there is the conclusion on the popular devotion to Andrew Mullen stressing the theological aspect of the subject. In the course of writing the thesis it was decided to separate the documentary evidence from the oral tradition. This was advantageous in developing the thesis, and the documents provided a secure basis for the oral tradition. Two pieces of information were found in March 1997. They are death notices: 2 January 1819, The Leinster Journal and 7 January 1819, The Car low Morning Post. There is a slight discrepancy between the two on the date of his death. Also this discrepancy shows a slight difference from the date of the tombstone

    What I know about my ancestors, and their families : also, some account of my wife's ancestors, and their families /

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    Includes index."This book is donated by Dr. Victor J. Andrew, great grandson of the author, who copied it from the original manuscript which is in the possession of Mr. Morton O. Perkins, grandson of the author, and who still lives on the author's farm."Reprint of: What I know about my ancestors, and their families : also some account of my wife's ancestors, and their families / Edward Perkins. Weymouth, Ohio : Perkins, 1888.Mode of access: Internet

    Letter to Andrew Inglis Clark, Tasmania from Nicholas J. Brown, 18 Feb 1887

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    Letter to Andrew Inglis Clark, Tasmania from Nicholas J. Brown, 18 Feb 1887 praising Clark's abilities and his defence of Mr. Moore. C4/C1

    Application of transfer for J. N. Cole, Liberty, Virginia, signed by William J. Moore, January 19, 1864

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    This item is from the Robert Jemison, Jr. Papers. The collection spans the period from 1797 to 1960 and includes both the personal and business papers of Robert Jemison, Jr., along with papers of Robert Jemison (grandfather), William Jemison (father), Priscilla Jemison (wife), Cherokee Jemison Hargrove (daughter), and Andrew Coleman Hargrove (son-in-law), and Robert Jemison, Jr. (IV) of Birmingham (1878-1973). Included are the records of his grist and lumber mills, plantations, stage line, the Tuskaloosa Plank Road, toll bridges, ferries, postal contracts, and the North East and South West Railroad

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Moore, Andrew (Death, 1906-06-01)

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    Address: 614 BroadwayAge at death: 31 yrs.45/Pg 76/1906/M WM/Ky./Dr. Jos. Watson/J. J. Radel/Spring GroveOriginal record filed in drawer labeled 'MOLENY-MOORE, JR'

    (Appendix C) Hydrocarbons and pyrolysis indexes at DSDP Leg 77 Holes

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    Analysts were A. J. Kaltenback, H. Maxwell, Jr., A. Moore, and J. W. Patton. Data based on mass spectral data from pyrolyses between 300° and 600°C paraffin = napthene-aromatic (PNA) data and napthene data calculated by method of Robinson (1971)
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