1,720,986 research outputs found
Atlas of pollen, spores and further non-pollen palynomorphs recorded in the glacial-interglacial late Quaternary sediments of Lake Suigetsu, central Japan
No full textAbstract not availableDieter Demske,Pavel E. Tarasov,Takeshi Nakagawa, Suigetsu 2006 Project Member
A re-analysis of the Lake Suigetsu terrestrial radiocarbon calibration dataset
No full textSuigetsu 2006 Project Members: J.J. Taylor for the University of Adelaide.R.A. Staff, C. Bronk Ramsey, T. Nakagawa, Suigetsu 2006 Project Member
A standard sample method for controlling microfossil data precision: a proposal for higher data quality and greater opportunities for collaboration
No full textSuigetsu 2006 Project Members: J. J. Taylor for the University of Adelaide.Abstract not availableTakeshi Nakagawa, Hiroyuki Kitagawa, Rebecca Payne, Pavel Tarasov, Dieter Demske, Suigetsu 2006 Project Member
A novel approach to varve counting using muXRF and X-radiography in combination with thin-section microscopy, applied to the Late Glacial chronology from Lake Suigetsu, Japan
No full textAbstract not availableMichael Marshall, Gordon Schlolaut, Takeshi Nakagawa, Henry Lamb, Achim Brauer, Richard Staff, Christopher Bronk Ramsey, Pavel Tarasov, Katsuya Gotanda, Tsuyoshi Haraguchi, Yusuke Yokoyama, Hitoshi Yonenobu, Ryuji Tada, Suigetsu 2006 Project Member
TOC, TOC/TN, δ13Corg and a new chronologic framework of core SG06 from Lake Suigetsu (Japan) since 146 ka
No full textWe present new palaeoclimate data from Lake Suigetsu (Japan) core SG06 including total organic carbon (TOC), total nitrogen (TN), TOC/TN ratios, carbon isotope analyses of organic carbon (δ13Corg) and Cryptomeria pollen abundance back to the penultimate glacial period (146 ka). The data is used to reconstruct orbital-scale monsoon dynamics in Japan. The sediments down to a maximum penetration depth of 73m were recovered in summer 2006 using a hydro-pressure thin-walled piston sampler and a floating platform by the Suigetsu 2006 Project Members. A new chronology for the Lake Suigetsu's sediments were developed beyond the well-constrained radiocarbon limit based on (1) tephrochronology, and (2) tephrostratigraphy, and (3) careful alignment of Cryptomeria pollen abundance between Lake Suigetsu and marine core MD01-2421 located in the northern Pacific Ocean
Cryptomeria pollen abundance and a new chronologic framework of core SG06 from Lake Suigetsu (Japan) since 146 ka
No full textWe present new Cryptomeria pollen abundance back to the penultimate glacial period (146 ka). The sediments down to a maximum penetration depth of 73m were recovered in summer 2006 using a hydro-pressure thin-walled piston sampler and a floating platform by the Suigetsu 2006 Project Members. A new chronology for the Lake Suigetsu's sediments were developed beyond the well-constrained radiocarbon limit based on (1) tephrochronology, and (2) tephrostratigraphy, and (3) careful alignment of Cryptomeria pollen abundance between Lake Suigetsu and marine core MD01-2421 located in the northern Pacific Ocean. Additional palaeoclimate data from Lake Suigetsu (Japan) core SG06 including total organic carbon (TOC), total nitrogen (TN), TOC/TN ratios, carbon isotope analyses of organic carbon (δ13Corg) are also presented in accompanying publications to reconstruct orbital-scale monsoon dynamics in Japan
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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