1,720,961 research outputs found

    Town of Highland Park, Texas: An Assessment of Water Use and Conservation Potential

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    The Town of Highland Park, Texas would like to take steps towards improving their water use conservation as a demonstration of community leadership. To do this, they have partnered with the Texas State University team (TSU) - Dr. Tim Loftus and the author as graduate research assistant - in a nine-month project to delve into the town's potential for reducing water use. The purpose of this research is three-fold: 1. Gather information about Best Management Practices (BMPs) applied to city- and town-owned properties for the purpose of conserving water from the following cities in Texas: Alamo Heights, Irving, Southlake, The Woodlands, West University Place, Westlake, and Westover Hills. Similar information was also gathered from Cary, North Carolina, Santa Fe, New Mexico, and Scottsdale, Arizona; 2. Develop a water use conservation program scenario that promises to reduce water use in Highland Park and will have the additional potential to improve the town's score as determined by the Texas Living Waters Project, Texas Water Conservation Scorecard (2016). The conservation program scenario will be developed with application of a water conservation planning tool; 3. Analyze WaterSmart-derived monthly water-use data to create new information that enables the Town of Highland Park to better understand recent water use and target water-use conservation.Geography and Environmental Studie

    Water Conservation from Rooftop Rainwater Harvesting in Austin, Texas

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    Rooftop rainwater harvesting may provide an alternate supply of water for many household uses. There is a significant potential for supply from rooftop rainwater harvesting systems to offset the use of utility potable water used for outdoor irrigation demand from landscaped areas in Austin, Texas. To calculate the potential savings of these systems a supply and demand are needed. Monthly average rainfall totals, the area of building footprints of over two hundred thousand single-family residential parcels, and a roof material runoff coefficient were used to calculate the potential volume collected from rooftop rainwater harvesting. Monthly average evapotranspiration totals, the area of landscaped areas of over two hundred thousand single-family residential parcels, and a plant water use coefficient were used to calculate the potential volume conserved from rooftop rainwater harvesting. Object-based, supervised land-use classification was performed on sample areas to obtain the average landscaped area in Austin. The results of this study may help local, regional, and state water planners quantify the potential volume of water collected and conserved from the implementation of rooftop rainwater harvesting systems.Geography and Environmental Studie

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Protecting Water Quality and Connecting Protected Places in Texas Using Riparian Connectivity Networks

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    Widespread development and land use changes across the United States (U.S.) have fragmented its landscape, altering the flow of resources between natural environments and significantly reducing habitat connectivity. While habitat connectivity is critical for many environmental and societal benefits, it has historically played a secondary role in the management of U.S. public lands. The establishment of a Riparian Connectivity Network (RCN), to connect protected habitat by the protection of riparian lands, has been proposed as a framework to address this issue. I investigated the potential of the RCN framework to increase connectivity and protect water quality in HUC-8 watersheds within the state of Texas with particular focus on the role of stream mitigation banks. Watersheds of interest were identified as those with the largest expected increase in impervious surface, largest percent of area protected, and lowest percent of riparian lands protected. I then created a stream prioritization scheme within each HUC-8 to identify stream reaches that would be considered in the establishment of a mitigation bank; this prioritization was based on stream order (prioritizing headwaters over larger streams) and land cover (prioritizing more degraded lands for their potential to be improved by mitigation). The shortest path able to link as many protected areas as possible was then isolated from the prioritization model to create an RCN showing which portions of the network could be fulfilled by Clean Water Act (CWA) mitigation not normally considered in a connectivity context. The RCN concept has the potential to combine various environmental efforts operating in the riparian zone in order to improve water quality and increase ecological connectivity.Geography and Environmental Studie

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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