1,721,221 research outputs found
Hydrological Changes in the Arctic, the Antarctic, and the Himalaya
No full textThe chapter enumerates the importance of glaciers on global climate, livelihood, economics, and their hydrological implications. Climate warming has raised an alarming signal on water reserves, especially on Earth's cryosphere that acts as hydrological insurance for glacier-fed rivers and a key driver for the ocean ecosystem through their freshwater supply and salinity regulation. Key issues have been discussed to understand the cryosphere system and its effect on the hydrological systems
Who cares about mortgage interest deductibility?
No full textWe use the US Survey of Consumer Finances to measure the change in federal tax liability that would result should mortgage interest no longer be deductible from taxable income. We argue that the elimination of this housing tax provision would lead households to reshuffle their balance sheet, thereby lowering the amount of interest income taxes collected. We find that the cost of this tax provision is between 36 and 66 percent of the estimates produced by the US Office of Management and Budget, depending on the types of assets one assumes would be used to lower mortgage debt following the removal of the provision. Furthermore, since mostly rich households would be in a position to reshuffle their balance sheet following such a change in tax policy, the distributional effects of this program are much smaller than conventionally believed. While the focus of this paper is on the elimination of mortage interest deductibility in the US, the results of this study shed some light on the impact and distributional consequences to expect should mortgage interest deductibility be introduced in Canada
<b>Supplemental Material—Evaluation of Remodeling of Visceral Arteries and Impact on Renal Function Post-endovascular Repair of Type B Aortic Dissection Vis-A-Vis Baseline Visceral Artery Morphology</b>
No full textSupplemental Material for Evaluation of Remodeling of Visceral Arteries and Impact on Renal Function Post-endovascular Repair of Type B Aortic Dissection Vis-A-Vis Baseline Visceral Artery Morphology by Amit Ajit Deshpande, Niraj Nirmal Pandey, Manish Shaw, Sanjeev Kumar, Priya Jagia, and Shiv Choudhary in Vascular and Endovascular Surgery.</p
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
Benchmarking, profiling, and ranking of cities: The "European smart cities" approach
No full textSince 2007, a team at TU Wien, a university in Vienna, Austria, has worked on a comprehensive tool for assessing smart cities. The evaluation system provides an integrative approach to profiling and benchmarking European medium-sized cities and is regarded as an effective learning instrument on urban innovations in the specific field of urban development. Following adap-tations and updates, four versions of the smart city model have been released whereby the three early versions focus on medium-sized cities and the fourth version on larger cities in Europe. The chapter will describe the role of city rankings for strategic policy advice and provide some indications of why benchmarking and a place-based approach are important. It will explain the various categories of smart urban development and their relationship to sus-tainability using the European smart cities approach. Finally, the discourse will address the single characteristics of the six key fields considered (econ-omy, people, governance, mobility, living, environment) and the indicators used for empirical evidence
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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