1,721,112 research outputs found
Le port de Londres au Moyen Age : fondement de la puissance maritime anglaise
No full textTran Tri. Le port de Londres au Moyen Age : fondement de la puissance maritime anglaise. In: Bulletin des anglicistes médiévistes, N°52, hiver 1997. pp. 11-22
On the Structure and Dynamics of Aluminophosphate Glass-forming Melts measured by Dynamic Light Scattering
No full textI report the results of a series of dynamic light scattering studies of molten aluminophosphate liquids, [Al(PO3)3]x[NaPO3]100-x, obtained by photon correlation spectroscopy. The study covers a range of compositions designed to manipulate the network connectivity of the glass-forming liquid in order to investigate how the change in the chemical structure of covalent network affects its dynamics. The dynamic structure factor was measured to provide quantitative information about the liquid's dynamics through the non-ergodic level, stretching exponent, and fragility. The fragility was shown to decrease with increased network connectivity and the result is identical to both ultraphosphates and chalcogenides. I argue that this pattern fits with predictions of the rigidity theory and may be linked to a common dependence on the entropy of the liquid as a function of the network connectivity described by a two-state bond model.ProQuest Traditional Publishing Optio
In the pursuit of Operational Excellence - Challenges with performance measures and performance estimates
No full textDefense is held on 16.4.2021 12:00 – 15:00
Via Zoom https://aalto.zoom.us/s/68672320250Essentially all companies want to outperform their competitors. Operational excellence is thus the goal for most organisations that operate in a competitive environment. However, the ways to achieve operational excellence depend largely on the company's characteristics. Nonetheless, there are two common crucial factors that all firms must face in the pursuit of operational excellence: performance measures and performance estimates. This Dissertation investigates different challenges associated with performance measures and performance estimates and the implications of such complexity in the pursuit of operational excellence. The research problems are formulated as follows: (i) the nuanced and complex nature of performance measures, (ii) the challenges in monitoring numerous performance measures, and (iii) the implications of estimate uncertainty.
Essay I investigates the nuanced and complex nature of performance measures by illustrating that performance measures are influenced by numerous factors, many of which are subtle. Specifically, Essay I examines the impacts on performance outcomes of occupational safety perceptions from both managers and workers. Essay I finds significant correlations between various performance outcomes with perceptions of occupational safety. Essay II investigates the additional two challenges: (i) measure intangible performance outcomes and (ii) monitor numerous performance measures when there are numerous stakeholders involved. Essay II also reveals that analytics, combined with a centralised information system, is an effective tool for quantifying otherwise intangible performance measures and tracking numerous performance indicators. Analytics also helps enable data-based decision-making processes, which is imperative for a performance management programme to succeed. Essay III examines two strategies to tackle estimate uncertainty: (i) consider estimate uncertainty with the Bayesian method and (ii) ignore estimate uncertainty by taking estimates at face value. Essay III reveals that the optimal strategy depends on the goal of the decision. Strategy (i) is optimal when the goal is a high expected return and low post-decision disappointment. Strategy (ii) is optimal when the goal is to capture as many big wins as possible. Essay III also provides practical confirmations of the mathematical findings from R&D investment decisions in the pharmaceutical industry.
Through investigating three vastly different operations, this Dissertation contributes to the literature on performance and quality management by exploring the common challenges that all firms must face in the pursuit of operational excellence. While the significance of performance measures and performance estimates is often emphasised at the strategic level, this Dissertation proves that it is also vital to understand such complexity to make better-informed decisions at the operational and tactical levels
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
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
Towns and Town Life in Scotland
No full textIn the modem western world urbanisation has often been both the companion and corollary of industrialization and no more so than in Britain. Here the population changed dramatically during the long nineteenth century, transforming parts of England and Scotland into some of the most industrial and urban societies in the world. Scottish society was particularly affected by this process. The growth of towns or cities, and the radical overhaul of the balance of population between the rural and urban worlds that this implies, is one of the most sensitive indicators of the emergence of a modem industrial state. Nor surprisingly then, Scottish towns are seen as central to any understanding of modern Scotland. For some they have an identity all of their own which distinguishes them from towns in other parts of the United Kingdom. Indeed it is to these same towns that political scientists have turned to explain why the Scots have never lost their sense of national identity, despite Scotland’s “stateless nation” status since 1707. This GRAAT conference brought together contributions from a wide range approaches to the Scottish urban experience: from history to literature, architecture and the fine arts. They focus on three main perspectives. Firstly we have images of the city and an exploration of how these became part of the Scottish mind-set. A second perspective concentrated on the Scottish city during the nineteenth century. Finally, there is the twentieth and twenty-first century “revival” with its distinctive avenues of development. All in all, a recognition of the fascination which the distinctiveness of urban life has exerted over the Scottish people as much as a tribute to the renewed dynamism of Scottish studies in France
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
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