1,720,954 research outputs found
Brief Note Additions to the Lichen Flora of Ohio
No full textAuthor Institution: Environmental Engineering Division, American Electric Power Service Corporatio
The Foliose and Fruticose Lichen Flora Around the Muskingum River Power Plant, Morgan County, Ohio
Full text linkAuthor Institution: Environmental Engineering Division, American Electric Power Service CorporationSHOWMAN, RAY E. The Foliose and Fruticose Lichen Flora Around the Muskingum River Power Plant, Morgan County, Ohio. Ohio J. Sci. 75(1): 33, 1975
Macrolichen Flora of Crane Hollow, Hocking County, Ohio
Full text linkAuthor Institution: Environmental Engineering Division, American Electric Power Service CorporationThe macrolichen flora of Crane Hollow, Hocking County, Ohio, was investigated, and 77 species were found. Twenty-three species are new records for Hocking County, five are on the Ohio Biological Survey endangered and threatened plant list, and one, Parmotrema arnoldii (DR.) Hale, is new to Ohio
The Foliose and Fruticose Lichen Flora of the Ohio River Valley Between Gallipolis, Ohio, and Parkersburg, West Virginia
Full text linkAuthor Institution: Environmental Engineering Division, American Electric Power Service CorporationLichens were surveyed in a relatively uncollected region composed of parts of Gallia, Meigs, Athens, and Washington Counties, Ohio, and parts of Mason, Jackson, and Wood Counties, West Virginia. A total of 87 species of foliose and fruticose lichens were recorded. New state records for West Virginia are Cetraria fendleri, Parmelia crozalsiana, P. flaventior, Parmeliopsis aleurites, Physcia adscendens, P. endococcinea, and P. lacinulata. Pseudevernia consocians was the only new species found in Ohio
Photosynthetic Response with Respect to Light in Three Strains of Lichen Algae
Full text linkAuthor Institution: Department of Botany, Ohio State University, Columbus, Ohio 43210Net photosynthetic rates of three lichen algae were studied at different light intensities. Algae from lichens with a pigmented cortex exhibited decreased net photosynthetic rates at high light intensities, while algae from a non-pigmented lichen were light-tolerant. The physiology of lichen algae appeared to be related to the pigmentation and ecological behavior of the lichen thallus
The Macrolichens of Ohio: A Revised Checklist
Full text linkAuthor Institution: 2273 Blachleyville Rd., Wooster, OH 44691 and 2235 Blue Rock Lane, Grove City, OH 43123The current revised list of macrolichens in Ohio contains 208 species, including twenty-eight species new to Ohio during the past 20 years. Nomenclature for Ohio's known species has been revised to reflect the most recent changes. Relative abundance is given for the species listed
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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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