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Postglacial Delevelling in Skeldal, Northeast Greenland
Full text linkSkeldal is a northeast-trending valley in the Mesters Vig district, on the southwest shore of Kong Oscars Fjord, about 70 km from the fiord\u27s entrance, in the northeast corner of Scoresby Land. Thirteen radiocarbon dates of shell material which were used to establish a rate of emergence in Skeldal, indicate that the valley was partially open to the sea by ca 8500 BP. Early emergence (8000-7000 BP) was approx 3 m/century. Emergence is related almost entirely to adjustment due to glacial unloading.Gauchissement postglaciaire à Skeldal, nord-est du Groënland. Treize spécimens du matériaux conchologiques, recueillis à Skeldal, district de Mesters Vig, au nord-est du Groënland, ont été datés par la méthode du radiocarbone et ont permis d\u27établir la vitesse d\u27émergence tout au cours du gauchissement. Les dates indiquent Skeldal était partiellement exposé à la mer c 8,500 av. p. Au début (8,000-7,000 av. p.) l\u27émergence était environ de 3 m. par siècle. L\u27émergence dépend presque entièrement du règlement isostatique causé par la décharge glaciale
The Surficial Geology of Skeldal, Mesters Vig Northeast Greenland.
No full textSkeldal is located in the Mesters Vig district, Northeast Greenland {72°15' N. lat., 24°15' W. long.). The surficial deposits were studied and sampled for analysis in the laboratory. Thirteen radiocarbon dates of shell material, and one of peat helped to establish a chronology for glacial retreat since the last glacial (Würm/Wisconsin) maximum. Conclusions: ( 1) The maximum height of the ice surface in Skeldal during the last glaciation is tentatively set at 500 m (Phase I) and probably corresponds to the last glacial maximum. (2) The first period of downwasting from the 500 m level is the result of glacial thinning and retreat (Phase II). {3) A glacial readvance probably occurred (Phase III), followed by general uncovering of the Mesters Vig district during postglacial time (Phase IV). (4) A glacial readvance occurred more recently than 1,500 B.P. (Phase V). (5) The early rate of emergence, 8,000-7,000 B.P., related to delevelling in Skeldal was of the order of 3 m per 100 years, but slowed approximately to 1 m per 100 years between 6,500 and 6,000 B.P. From 6,000 B.P. to the present emergence is tentatively set at 6 to 7 cm per 100 years. (6) The highest peaks rising from Skeldal were nunataks during the last ice maximum, and very probably during the entire Pleistocene. (7) Valley profiles and a slide block in the area suggest multiple glaciation occurred in Skeldal.Skeldal is located in the Mesters Vig district, Northeast Greenland {72°15' N. lat., 24°15' W. long.). The surficial deposits were studied and sampled for analysis in the laboratory. Thirteen radiocarbon dates of shell material, and one of peat helped to establish a chronology for glacial retreat since the last glacial (Würm/Wisconsin) maximum. Conclusions: ( 1) The maximum height of the ice surface in Skeldal during the last glaciation is tentatively set at 500 m (Phase I) and probably corresponds to the last glacial maximum. (2) The first period of downwasting from the 500 m level is the result of glacial thinning and retreat (Phase II). {3) A glacial readvance probably occurred (Phase III), followed by general uncovering of the Mesters Vig district during postglacial time (Phase IV). (4) A glacial readvance occurred more recently than 1,500 B.P. (Phase V). (5) The early rate of emergence, 8,000-7,000 B.P., related to delevelling in Skeldal was of the order of 3 m per 100 years, but slowed approximately to 1 m per 100 years between 6,500 and 6,000 B.P. From 6,000 B.P. to the present emergence is tentatively set at 6 to 7 cm per 100 years. (6) The highest peaks rising from Skeldal were nunataks during the last ice maximum, and very probably during the entire Pleistocene. (7) Valley profiles and a slide block in the area suggest multiple glaciation occurred in Skeldal.Skeldal is located in the Mesters Vig district, Northeast Greenland {72°15' N. lat., 24°15' W. long.). The surficial deposits were studied and sampled for analysis in the laboratory. Thirteen radiocarbon dates of shell material, and one of peat helped to establish a chronology for glacial retreat since the last glacial (Würm/Wisconsin) maximum. Conclusions: ( 1) The maximum height of the ice surface in Skeldal during the last glaciation is tentatively set at 500 m (Phase I) and probably corresponds to the last glacial maximum. (2) The first period of downwasting from the 500 m level is the result of glacial thinning and retreat (Phase II). {3) A glacial readvance probably occurred (Phase III), followed by general uncovering of the Mesters Vig district during postglacial time (Phase IV). (4) A glacial readvance occurred more recently than 1,500 B.P. (Phase V). (5) The early rate of emergence, 8,000-7,000 B.P., related to delevelling in Skeldal was of the order of 3 m per 100 years, but slowed approximately to 1 m per 100 years between 6,500 and 6,000 B.P. From 6,000 B.P. to the present emergence is tentatively set at 6 to 7 cm per 100 years. (6) The highest peaks rising from Skeldal were nunataks during the last ice maximum, and very probably during the entire Pleistocene. (7) Valley profiles and a slide block in the area suggest multiple glaciation occurred in Skeldal
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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