1,720,958 research outputs found
Surface and subsurface characterisation of salt pans
No full textThis data collection bundles six datasets about the surface, subsurface and environmental conditions of saltpans that express polygonal patterns in their surface salt crust that are fully described in Lasser et al., 2020 (https://doi.org/10.5194/essd-2020-86). Information stems from 5 field sites at Badwater Basin and 21 field sites at Owens Lake – both in central California, US. All data was recorded during two field campaigns, from between November and December, 2016, and in January 2018. (1) Lasser, J., Goehring, L. (2020a). Grain size distributions of sand samples from Owens Lake and Badwater Basin in central California, collected in 2016 and 2018. PANGAEA - Data Publisher for Earth &amp; Environmental Science. https://doi.org/10.1594/PANGAEA.910996 (2) Lasser, J., Goehring, L. (2020b): Subsurface salt concentration profiles and pore water density measurements from Owens Lake, central California, measured in 2018 (Version 2). PANGAEA, https://doi.org/10.1594/PANGAEA.922264 (3) Lasser, J., Goehring, L., Nield, J. M. (2020). Images and Videos from Owens Lake and Badwater Basin in central California, taken in 2016 and 2018 [Data set]. PANGAEA - Data Publisher for Earth &amp; Environmental Science. https://doi.org/10.1594/PANGAEA.911054 (4) Lasser, J., Karius, V. (2020). Chemical characterization of salt samples from Owens Lake and Badwater Basin, central California, collected in 2016 and 2018. PANGAEA - Data Publisher for Earth &amp; Environmental Science. https://doi.org/10.1594/PANGAEA.911239 (5) Nield, J. M., Lasser, J., Goehring, L. (2020). TLS surface scans from Owens Lake and Badwater Basin, central California, measured in 2016 and 2018 [Data set]. PANGAEA - Data Publisher for Earth &amp; Environmental Science. https://doi.org/10.1594/PANGAEA.911233 (6) Nield, J. M., Lasser, J., Goehring, L. (2020): Temperature and humidity time-series from Owens Lake, central California, measured during one week in November 2016 (Version 2). Max Planck Institute for Dynamics and Self-Organization, PANGAEA, https://doi.org/10.1594/PANGAEA.922231</span
International Benchmarking Review of UK Physical Geography
Get PDFPhysical geography in the UK is extraordinarily rich and diverse. It provides insights into processes and forms in the natural environment, including climate and atmosphere, geomorphology and landscape, biogeography and ecosystems, hydrology and water science, oceans and soils. The use, application and development of technologies, including Earth observation, GIS, and geochronological tools, are integral parts of contemporary physical geography. This report is the first to compile evidence on the health and influence of UK physical geography. It uses documented evidence, most of which is in the public domain, to describe the nature and demand for physical geography in schools, the shape and size of physical geography in universities, the achievements and global influence of UK physical geography and its academic community, and the aspirations and skillsets offered by the next generation of physical geographers. Physical geography brings a unique spatial perspective, and the capability to integrate across scales and subdisciplinary systems. It links to aspects of environmental science, mathematics, physics and life sciences. It sets intellectual agendas both within and beyond geography, and leads eminent international collaborative research programmes. The ‘de-siloing’ of science in the 21st century in response to big ‘whole world’ societal-environment challenges demonstrates the value of approaches which have always been integral to UK physical geography. UK physical geography is international in outlook, is world-leading in many subareas, and influences the discipline worldwide. This is achieved through many routes including: international research partnerships; the training given to overseas students in UK geography departments, particularly at graduate level; and the roles played by UK-based academics in international professional bodies, international journal editorships and major conferences. UK physical geography research is funded from diverse sources and punches well above its weight in terms of success rates at the UK Research Councils. In the last decade, European funding has also been vital in supporting UK physical geography research. New substantial funding opportunities are emerging including through the UK’s Global Challenges ResearchFund and Industrial Strategy, which physical geography is well placed to engage with.Additionally, the opportunities for postgraduate doctoral research in physical geography have been enhanced with the advent of the UK Research Council doctoral training programmes. The future of physical geography is bright. It is witnessing a resurgence in popularity in schools in England. Curriculum changes, increasing physical geography’s presence within A-Levels in England and Wales, are positive developments, as are a greater emphasis on fieldwork, individual project work and data skills. These provide opportunities for physical geography to bolster its position within the discipline in schools and beyond. The situation is not consistent across the UK; it is hoped that changes can be made in the content of Scottish Highers that leads to greater balance in the content of physical and human geography. At university, physical geography is a popular and growing subject choice and attracts some of the highest-calibre students to its undergraduate degrees. As well as being taught in UK university geography undergraduate programmes, physical geography is widespread in other degree structures and departments. Successful course delivery is contingent upon institutions providing appropriate access to laboratory facilities, fieldwork opportunities and quantitative training. Physical geography undergraduates perform well in their degrees, express high level of courses satisfaction, and have excellent employment outcomes compared to many disciplines. The independent review of this report by a panel of eminent overseas experts confirms that “it is beyond doubt that UK physical geography is a leading force worldwide as evidenced by all the metrics discussed in this report”. Nonetheless, there are challenges, detailed within the report, that need to be addressed to enhance the scientific academic and public presence, inclusivity, resourcing, autonomy, and global reputation of UK physical geography. It is recommended that a working group representative of constituent bodies within UK physical geography, led by the Royal Geographical Society (with the Institute of British Geographers) (RGS-IBG), is set up to take forward the ssues associated with thesechallenges
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Measuring rock hardness in the field
No full textRock surface hardness is often used as an indicator of the degree to which a rock surface has weathered. As the surface deteriorates the loss of cohesion results in crumbling of the surface, increased pore water circulation and dislodging of sections such as flakes. It is widely assumed that this results in a lowering of rock surface hardness. However, hardness can also increase if weathering leads to cementation of the surface due to the deposition of solutes such as quartz, clays and small quantities of carbonates. A number of different instruments are available to map out hardness distributions and changes over time. This chapter outlines the use of a simple field test (Moh’s hardness test), three rebound devices (Picolo, Equotip and Schmidt Hammer) and resistance drilling as possible methods for assessing rock surface hardness
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Get PDFWe 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
- …
