1,720,956 research outputs found
Crop Sequence Effects of Pulse Crops and Agronomic Research on Lupine
No full text8 pagesRobinson, R.G.; Rabas, D.L.; Smith, L.J.. (1984). Crop Sequence Effects of Pulse Crops and Agronomic Research on Lupine. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/141443
Pasture Species Clipping Trials in Minnesota
No full text20 Pages.Schmid, A.R.; Elling, L.J.; Hovin, A.W.; Lueschen, W.E.; Nelson, W.W.; Rabas, D.L.; Warnes, D.D.. (1979). Pasture Species Clipping Trials in Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/109243
Sunflower population, row width and row direction
Full text linkThis archival publication may not reflect current scientific knowledge or recommendations. Current information
available from Minnesota Agricultural Experiment Station. http://www.maes.umn.eduUniversity of Minnesota, Agricultural Experiment Station; Robinson, R.G.; Rabas, D.L.; Warnes, D.D.; Ford, J.H.; Lueschen, W.E.. (1976). Sunflower population, row width and row direction. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/205168
Sunflower Planting Date: An Important Decision
No full text7 pagesSunflower production involves a series of
decisions, and one of the most controversial is
optimum date of planting. Planting date affects
not only sunflower growth, but it also affects
the severity of damage from insects and fungi
that feed on sunflower. Planting date recommendations
vary among specialists. Consequently,
recommendations are often generalized to include
a 1- to 2-month period in the northern states.
The sunflower varieties and hybrids grown on
Minnesota farms do not usually require the entire
growing season, so planting dates range
from late April to early July. Research plot
data in this report show the effect of date of
planting on sunflower growth, seed yield, seed
quality, and oil quality. The effect of date of
planting on severity of damage from sunflower
pests is also discussed.
Date-of-planting trials were conducted from
1967 through 1969 with Peredovik, Armavirec, and
Krasnodarets oilseed varieties and Arrowhead,
Mingren, and 66 VI nonoilseed varieties at Rosemount
and Grand Rapids. USDA 894 hybrid was
used from 1982 through 1984 at Grand Rapids,
Crookston, and Morris. Trials were located on
sandy soil at Grand Rapids and on silt loam soil
at the other locations.Robinson, R.G.; Rabas, D.L.; Wiersma, J.V.; Warnes, D.D.. (1985). Sunflower Planting Date: An Important Decision. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/141458
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
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