1,721,041 research outputs found
Terrestrial Carbon Sequestration: A Survey of Policies and Programs
No full text1 electronic resource (PDF, 25 pages)University of Minnesota Water Resources Center and the Initiative for Renewable Energy and Environment, Xcel Energy Foundation, the Minnesota Department of Agriculture and the Natural Resources Conservation Service.Miller, Cheryl; Current, Dean. (2006). Terrestrial Carbon Sequestration: A Survey of Policies and Programs. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/182374
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
Ecological and economic factors affecting the sustainable production of camedor palm (Chamaedorea elegans Mart) in Petén, Guatemala and Veracruz, México
No full textTesis (Ph. D.) -- CATIE. Escuela de Posgrado, Turrialba (Costa Rica), 2007a mayor altura, mayor numero de hojas comerciales. El precio de mercado local de las hojas fue variable, una gruesa de 100 hojas fue pagada en US 0.48 en Guatemala y en US 0.89 en México. La presencia de plagas fue registrada para las plantaciones de palma camedor en México, pero no en Guatemala. A su vez algunas enfermedades causadas por hongos principalmente se manifestaron en Guatemala, causando la muerte de algunas plantas, pero no en México. De julio del 2004 a julio del 2005 se estudiaron las condiciones ecológicas en las cuales crece la palma camedor Chamaedorea elegans en tres localidades de Guatemala y dos de México.Las variables evaluadas para cada sitio fueron: porcentaje de sombra, pendiente, grado de conservación del bosque y se hizo un inventario de especies de árboles de sombra mayor a 5 cm.Se encontró que existe una relación entre la altura de la planta y el número de hojas comerciales en 4 de las 5 comunidades estudiadas Ecological conditions where Chamaedorea elegans grows were studied in three locations in Guatemala and two in Mexico from July 2004 to July 2005. Shade trees and relative values of dominance, density, frequency, and importance value were estimated in order to group the type of trees found in the sampling plots. In Carmelita camedor palm plants grown in a wider rank of shade, but in Oaxactúm and Suculté this rank was narrower. In Pajápan, the highest production of leaves was reached in places from 66 percent to 70 percent, shade, while that in San Fernando the highest production of leaves was from 71 to 75 percent shade. The total leaves evaluated in the sampling plots were in Guatemala 7,532 from which 17.7 percent were for Carmelita, 20 percent for Oaxactúm and 62.3 percent for Suculté. In Mexico this volume was 32,133 from which 48 percent for Pajápan and 52 percent for San Fernando in Mexico. In most of the cases, the taller the plant, the higher the percentage of commercial leaves
Riparian Buffer Science: Status and Research Needs
No full textA summary of research, applications to management and the new Minnesota buffer rule
Status of the science: What do we know?
Erosion and nutrient loss from upland areas, streambanks, bluffs, ravines, and river banks have been contributing to water quality problems throughout the state. Furthermore, changes to the structure and vegetation of waterbodies have impacted the health of aquatic life over the years.
Impairments from these changes are associated with problems pertaining to aquatic life, drinking water, and algal blooms in Minnesota’s water bodies and water in other states downstream. In order to improve waters across the state and water discharging into neighboring states, Minnesota has been implementing best management practices (BMPs). Riparian buffers are one type of BMP being used to reduce contaminants released into the state’s waterways.University of Minnesota Water Resources CenterGordon, Brad; Lenhart, Chris; Lewandowski, Ann; Wyatt, Gary; Current, Dean. (2016). Riparian Buffer Science: Status and Research Needs. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/182550
- …
