1,721,016 research outputs found
Stream sediment geochemical atlas of the United Kingdom
Full text linkThis atlas is a milestone publication representing 45 years of work to characterise the chemical quality of the United Kingdom surface environment. Maps and information documenting the concentrations of 18 chemical elements analysed in approximately 111,000 stream sediment samples collected across the UK are presented for the first time. Results reveal the influence of natural geological/ weathering processes on sediment chemistry as well as human impacts including urbanisation, industry, mining and agriculture. The data provide an invaluable basis to aid Earth-system process modelling, mineral resource and catchment management, environmental protection and quantitative evidence, against which to measure future environmental change.
This atlas has been published as an ‘interactive pdf document’, which features several functions that allow the reader to access and display different geochemical maps and information in various ways. This atlas is designed to be downloaded and read in two-page view using Adobe pdf software (e.g. Adobe Reader, Adobe Acrobat). If viewed using other software, e.g. within your browser, certain interactive elements may not display or function as intended
Soil geochemical atlas of the Clyde Basin
Full text linkSoil quality is of interest because soil forms the foundation for building and infrastructure in both rural and urban environments, it is a fundamental resource for agriculture, energy production and climate change mitigation. Soil supports key ecosystems and biodiversity and mediates the flow and pollution of water resources. This volume presents an assessment of the chemical quality of soil across the River Clyde Basin in the West of Scotland, including Scotland’s main conurbation of Glasgow.The work presented here is the result of a project carried out in two phases over 10 years to determine the geochemistry of soil across the region. It was undertaken as part of the Clyde and Glasgow Urban Super Project (CUSP); a multi-disciplinary collaborative programme between the British Geological Survey (BGS) and Local Authorities to characterise the geo-environment of the Clyde Basin.
This volume compares the concentrations of chemical elements found in soil from the urban area of Glasgow with those from its rural hinterland. This enables an assessment of the anthropogenic pollution imprint on the environment. It also provides information on the essential nutrients in soil necessary for agricultural production. This fundamental background information is vital to aid land and resource management, and satisfy the legislatively driven demands for an improved and sustainable environment, where people can live and work with a better quality of life
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
UK Geoenergy Observatories, Glasgow environmental baseline soil chemistry dataset
Full text linkThis report describes the environmental baseline topsoil chemistry dataset collected in February-March 2018 (03-18) as part of the United Kingdom Geoenergy Observatories (UKGEOS) project. Ninety, samples were collected from the shallow coal-mine Glasgow Geothermal Energy Research Field Site (GGERFS). The report accompanies the GGERFS Soil Chemistry03-18 dataset. It provides valuable information on soil chemistry prior to installation of the GGERFS-facility boreholes, against which any future change during the development/ running of the facility can be assessed. This information is necessary to help understand and de-risk similar shallow geothermal schemes in the future, provide public reassurance, and inform sustainable energy policy
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
UK Geoenergy Observatories, Glasgow Environmental Baseline Surface Water Chemistry Dataset 1
Full text linkThis report accompanies the United Kingdom Geoenergy Observatories Glasgow Surface Water Chemistry Dataset_1. The dataset comprises chemical analysis of 98 (84 samples and 14 duplicates) surface water samples that were collected monthly between February 2019 and March 2020 from water bodies proximal to the Glasgow Observatory. This baseline dataset provides valuable information on surface water chemistry prior to the operation of the Observatory, against which any future change can be assessed. This information is necessary to help understand the Observatory hydrological-hydrogeological regime; and to help de-risk similar shallow geothermal schemes in the future, provide public reassurance, and inform sustainable energy policy
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