161,843 research outputs found
A new, complex hyaline larger benthic foraminifer, Bigaella orbitoidiformis n. gen. n. sp., from the upper Bartonian-Priabonian of NW Turkey
No full textThe upper Bartonian-Priabonian shallow-marine deposits in the Biga Peninsula (NW Turkey) contain some hyaline larger benthic foraminifers (LBF) with a test architecture similar to 'orbitoidiform' foraminifers, but displaying some distinctive and complex morphological features that are recorded here for the first time. These coarsely porous specimens are characterized by a flat, disc-shaped, fragile, and smooth test with a layer of equatorial chambers/chamberlets, surrounded by poorly developed lateral chamberlets, never forming a discrete layer on either side of the equatorial layer. The nepionic stage is very distinctive because the bilocular embryonic apparatus is followed by a semi-rounded, notably large auxiliary chamber with a characteristic wavy outline, and consecutive cyclical chambers. The cyclical chamber arrangement is later transformed into annular cycles with numerous, complex arcuate- to cup-shaped chamberlets, as observed in equatorial sections. Bigaella orbitoidiformis Ozcan, Mitchell, Pignatti, Simmons, and Yucel, n. gen. n. sp., is established for these specimens, and placed within the family Eoannulariidae Ferràndez-Cañadell and Serra-Kiel, emended herein. The new genus occurs together with Caudriella Haman and Huddleston and Epiannularia Caudri (both originally established from the American bioprovince) and the genus Linderina Schlumberger (found both in the Tethys and the American bioprovinces), together with other typical Western Tethyan LBFs. A comparison of the new genus with the aforementioned taxa is given. UUID: http://zoobank.org/ab917e30-86d3-4bc2-8115-d17cf75f5d79
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Larry O. Spencer, Conference Author Presentation
No full textGen. Larry O. Spencer, USAF (Ret.), author of Dark Horse: A Journey from the Horseshoe to the Pentago
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Production of 150 cm wide AZ31 magnesium sheet by twin roll casting
No full textKaya, Ali Arslan/0000-0002-4467-3456; Duygulu, Ozgur/0000-0001-8646-0363; Yucel, Onuralp/0000-0002-3879-0410; Duygulu, Ozgur/0000-0001-8646-0363WOS: 000262155200037150 cm wide AZ31 magnesium alloy sheet was produced by twin roll casting. The sheets of 6 mm thickness were cast. The sheet material was characterized using various techniques including metallography and XRD. The mechanical properties were investigated by tensile tests and hardness measurements. The procedures were developed for thermomechanical treatment of cast sheet material. The products of these procedures were characterized and the results were discussed for possible potential applications
A revised suprageneric classification of American orthophragminids with emphasis on late Paleocene representatives from Jamaica and Alabama
No full textPaleocene orthophragminids from the American bioprovince were studied from the Nonsuch Formation in Jamaica and the Salt Mountain Limestone in Alabama, the latter being the type locality of Discocyclina blanpiedi (Vaughan) and Discocyclina cookei (Vaughan). Species traditionally assigned to Athecocyclina Vaughan, Neodiscocyclina Caudri and Hexagonocyclina Caudri are redescribed and a new systematic classification of American orthophragminids is proposed based on the newly discovered microspheric forms of Paleocene species of Hexagonocyclina and Neodiscocyclina and Eocene Stenocyclina Caudri. Hexagonocyclina, questionably placed in Orbitoclypeidae Brönnimann in previous works, possesses an orbitoclypeid-type microspheric juvenarium justifying its placement in this family, whereas Stenocyclina and Pseudophragmina are transferred to Discocyclinidae Galloway after identifying the discocyclinid-type microspheric juvenarium. The genus Proporocyclina Vaughan & Cole is considered invalid and is assigned to Pseudophragmina. The genus Neodiscocyclina Caudri, possessing an orbitoclypeid-type juvenarium, is interpreted as a junior synonym of Orbitoclypeus Silvestri, a genus widely occurring in the Tethys. Athecocyclina has a typical discocyclinid-type microspheric juvenarium and is characterized by the development of immature radial subdivisions in the annular chambers, which never form complete septula. An evolutionary lineage for Orbitoclypeus weaveri consisting of O. weaveri blanpiedi and O. weaveri weaver is established for the first time herein. The Hexagonocyclina cristensis lineage, consisting of H. cristensis cristensis and H. cristensis meandrica, and the Athecocyclina stephensoni lineage, consisting of A. stephensoni macglameriae and A. stephensoni stephensoni, are provisionally suggested based on the morphometry and early chamber arrangement of megalospheric forms. The superposition of the two subspecies in the Orbitoclypeus weaveri lineage is shown from the Salt Mountain Limestone. http://zoobank.org/urn:lsid:zoobank.org:pub:493F043E-22D3-49CD-A427-D5159F249BD2
Author Under Sail The Imagination of Jack London, 1902-1907
No full textIn this second volume of Author Under Sail Jay Williams investigates the life of Jack London as a professional writer at the turn of the 1900s, as his publications spanned The Call of the Wild to The Iron Heel and The Road. While documenting key life events, especially his rising fame, this biography explores London's necessity to illustrate the inner workings of his own vast imagination through his socialist essays and fiction.Cover -- Title Page -- Copyright Page -- Contents -- Acknowledgments -- Introduction -- 1. Howl, O Heav'nly Muse! -- 2. Jesus in the Theater of Socialism -- 3. Jack London's Place in American Literature -- 4. Theater of War, Theater at Home -- 5. Revolution, Evolution, and the Scene of Writing -- 6. The Jack London Show Goes on the Road -- 7. Red Atavisms and Revolution -- 8. Earthquake Apocalypse and Building the City, Boat, and House Beautiful -- 9. The Future of Socialism and the Death of the Individual -- 10. The Road Never Ends -- Notes -- Bibliography -- IndexIn this second volume of Author Under Sail Jay Williams investigates the life of Jack London as a professional writer at the turn of the 1900s, as his publications spanned The Call of the Wild to The Iron Heel and The Road. While documenting key life events, especially his rising fame, this biography explores London's necessity to illustrate the inner workings of his own vast imagination through his socialist essays and fiction.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
Design, synthesis and biological evaluation of 3,5-diaryl isoxazole derivatives as potential anticancer agents
No full textThe present study was carried out in the attempt to synthesize a new class of potential anticancer agents comprising eleven compounds (24–34) sharing the 3,5-diarylisoxazole as a core. The chemical structure of the new synthesized compounds was established by IR, 1H NMR, 13C NMR and elemental analysis. Their biological potential towards prostate cancer was evaluated by using cancer PC3 cells and non-tumorigenic PNT1a cells. Interestingly, compound 26 distinguished from others with a quite high selectivity value that is comparable to 5-FU. The binding mode of 26 towards Ribosomal protein S6 kinase beta-1 (S6K1) was investigated at a molecular level of detail by employing docking simulations based on GLIDE standard precision as well as MM-GBSA calculations
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