1,721,366 research outputs found
Jonathan Shaw to Thomas Rotch, Cincinnati 3rd Mo 5, 1819
No full textIndian agent Jonathan Shaw discusses the treaty of St. Mary's between the Indians of Ohio and the United States Government in 1818. He further states that he would like to have the post of agent to the Wyandot and is awaiting confirmation of the post. 8.05" x 9" (20.5 by 23 cm
Jonathan Shaw letter to Thomas Rotch, Cincinnati 5th mo 29 1819
No full textFurther discussion by Jonathan Shaw of the government treatment of Native Americans including mention of their dismay as their land was surveyed for sale to white settlers. 7.3" x 8.8" (18.7 by 22.5 cm
Population genetics and ecology of rare bumblebee species in the UK
No full textThe population genetic structure of three rare and declining bumblebee species, Bombus muscorum, B. humilis, and B. sylvarum was examined using microsatellite markers. We find evidence of significant genetic structuring in both oceanic island populations of B. muscorum and in fragmented mainland populations of B. jumilis and B. Sylvarum. In the former species we find that all populations greater than 10km apart are significantly differentiated from one another suggesting dispersal above this distance is infrequent. Evidence of genetic bottlenecks was found in populations of both B. muscorum and B. humilis. All three species show reduced genetic diversity relative to the common B. pascuorum and fragmented UK populations of B. sylvarum show reduced genetic diversity relative to a continental population. Effective population sizes were found to be low in B. humilis and B. sylvarum, especially so in the latter species. Diploid male production was observed in all three rare species, but was infrequent. We propose that diploid male production is not an appropriate measure of inbreeding depression for social Hymenoptera. Why some bumblebee species have declined in the face of agricultural intensification while others have not is not well understood. Diet breadth of rare species was examined as a possible explanation of this. To some extent all three rare species studied show a narrow diet breadth. We hypothesize that this is because as these species emerge late, they must specialize on plants with higher quality pollen in order to raise the brood more quickly. Following losses of floral diversity, agricultural intensification has than affected these species more greatly.</p
Jonathan Shaw letter to Thomas Rotch, Upper Sandusky 3rd mo 28, 1820
No full textA letter to Thomas Rotch from sub-agent for Indian affairs, Jonathan Shaw, discussing the Treaty of St. Mary's, 1818, attended by Thomas and Charity Rotch as Quaker representatives to insure that Native Americans were fairly treated. 7.75" x 9.8" (19.7 by 24.9 cm
Jonathan Shaw letter to Thomas Rotch, Cincinnati 7th mo 25. 1819
No full textJonathan Shaw who long advocated on behalf of Native Americans as an Indian agent, explains that irrespective of Congress and the President's obligations to provide money and more agents to look after displaced Indians, very little financial support has been forthcoming. 7.3" x 8.8" (18.7 by 22.5 cm
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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