1,720,964 research outputs found
S-03 Hydrogeologic map of Minnesota, Quaternary hydrogeology
No full textScale 1:500,000.Kanivetsky, R.. (1979). S-03 Hydrogeologic map of Minnesota, Quaternary hydrogeology. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/60072
S-05 Hydrogeologic map of Minnesota, bedrock hydrogeology
No full textScale 1:3,168,000.Kanivetsky, R.. (1979). S-05 Hydrogeologic map of Minnesota, bedrock hydrogeology. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/60074
M-061 Major-constituent chemistry of selected Phanerozoic aquifers in Minnesota
No full textScales 1:1:1,000,000 and 1:2,000,000, 2 pls. PLATES: 1, Major-constituent chemistry of selected Phanerozoic aquifers in Minnesota: Cretaceous aquifer, scale 1:1,000,000, and Quaternary aquifer, 1:2,000,000; 2, Major-constituent chemistry of selected Phanerozoic aquifers in Minnesota: Cedar Valley-Maquoketa-Dubuque-Galena aquifer, scale 1:1,000,000, and Franconia-Ironton-Galesville aquifer, scale 1:1,000,000, and St. Peter aquifer, scale 1:1,000,000, and Prarie du Chien-Jordan aquifer, scale 1:1,000,000, and Mt. Simon-Hinckley-Fond du Lac aquifer, scale 1:1,000,000.Kanivetsky, R.. (1986). M-061 Major-constituent chemistry of selected Phanerozoic aquifers in Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/60000
M-070 Distribution of arsenic in ground water and rocks, southwestern Minnesota
No full textScale 1 inch = 7.5 miles.Morey, G.B.; Setterholm, D.R.; Kanivetsky, R.. (1990). M-070 Distribution of arsenic in ground water and rocks, southwestern Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/60008
On the propagation of nonlinear transients of temperature and pore pressure in a thin porous boundary layer between two rocks
No full textThe dynamics of transients of fluid-rock temperature, pore pressure, pollutants in porous rocks are of vivid interest for fundamental problems in hydrological, volcanic, hydrocarbon systems, deep oil drilling. This can concern rapid landslides or the fault weakening during coseismic slips and also a new field of research about stability of classical buildings. Here we analyze the transient evolution of temperature and pressure in a thin boundary layer between two adjacent homogeneous media for various types of rocks. In previous models, this boundary was often assumed to be a sharp mathematical plane. Here we consider a non-sharp, physical boundary between two adjacent rocks, where also local steady pore pressure and/or temperature fields are present. To obtain a more reliable model we also investigate the role of nonlinear effects as convection and fluid-rock “frictions”, often disregarded in early models: these nonlinear effects in some cases can give remarkable quick and sharp transients. All of this implies a novel model, whose solutions describe large, sharp and quick fronts. We also rapidly describe transients moving through a particularly irregular boundary layer
OFR91-05, Geologic factors affecting the sensitivity of the Prairie du Chien-Jordan aquifer
No full textGeologic factors affecting the pollution sensitivity of the Prairie du Chien-Jordan aquifer including overlying glacial drift, scale 1:853,000. Plate 1 is unavailable.Setterholm, D.R.; Runkel, A.C.; Cleland, J.M.; Tipping, R.G.; Mossler, J.H.; Kanivetsky, R.; Hobbs, H.C.. (1991). OFR91-05, Geologic factors affecting the sensitivity of the Prairie du Chien-Jordan aquifer. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/122055
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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