3,632 research outputs found
Collaboration in Iranian Scientific Publications
No full textThis study looks at international collaboration in Iranian scientific publications through the ISI Science Citation Index® (SCI) for the years 1995-1999, inclusive. These results are compared to and contrasted with the earlier findings for the periods covering 1985-1994 (Osareh & Wilson 2000). The results of Iran's increasing productivity over a 15-year period are presented. Iran doubled its output in the first two five-year periods and increased 2.8-fold from the second to the third five-year period. The rise in Iran's scientific publication output is due mainly to factors such as the ending of the war, better economic conditions, recent changes in the Iranian government's policy, basic changes in the political environment brought about by the Reformers, expansion of the Iranian presses for national publications, and the recent return of a large number of students trained overseas through government scholarships. External changes also account for the increased productivity, e.g., the acceptance of three Iranian source journals by the SCI, increased access to international databases through the Internet and better electronic communication facilities for international collaboration. One of the most important and significant factors that caused this dramatic rise seems to be the government's research policies in the last few years. Since 1999, the Iran Science, Research and Technology Ministry, has encouraged researchers to publish their non-Farsi language articles in highly ranked international scientific journals, for example, by giving prizes to researchers who publish their articles in ISI-ranked journals
From the Roman Republic to the American Revolution: readings of Cicero in the political thought of James Wilson
No full textAs a classical scholar and prominent founding father, James Wilson was at once statesman, judge, and political thinker, who read Cicero as an example worthy of emulation and as a philosopher whose theory could be applied to his own age. Classical reception studies have focused on questions of liberty, civic virtue, and constitutionalism in the American founding, and historians have also noted Wilson’s importance in American history and thought. Wilson’s direct engagement with Cicero’s works, however, and their significance in the formulation of his own philosophy has been long overlooked. My thesis argues that Wilson’s viewpoint was largely based on his readings of Cicero and can only be properly understood within this context. In the first two chapters of my thesis I demonstrate that Wilson not only possessed a wide-ranging knowledge of the classics in general, but also that he borrowed from Cicero’s writings and directly engaged with the texts themselves. Building upon this foundation, chapters three and four examine Cicero’s perspective on popular sovereignty and civic virtue, situate Wilson’s interpretations within contemporary discussions of Roman politics, and analyse the main ways in which he adapts Cicero’s arguments to his own era. Wilson retains a broader faith in the common people than seen in Cicero’s opinions, and he abstracts from Cicero a doctrine of sovereignty as an indivisible principle that is absent in the text; nevertheless, Cicero’s conception of a legitimate state and his insistence on the role of the people provided the foundation for Wilson’s thought and ultimately for his legitimization of the American Revolution. At the same time, like Cicero, Wilson views the stability of the state as resting in the personal virtue of the individual. While his enlightenment philosophy imparts optimism to his conception of the good citizen, his definition of virtue closely follows that of Cicero. As the final chapter of my thesis concludes, their individual interpretations of these theories of popular consent and virtue were instrumental in forming Cicero’s and Wilson’s justifications of civil disobedience
<i>k</i>(<i>n</i>)-Torsion-Free <i>H</i>-Spaces and <i>P</i>(<i>n</i>)-Cohomology
No full textAbstractThe H-space that represents Brown–Peterson cohomology BPk(–) was split by the second author into indecomposable factors, which all have torsion-free homotopy and homology. Here, we do the same for the related spectrum P(n), by constructing idempotent operations in P(n)–cohomology P(n)k(–) in the style of Boardman–Johnson–Wilson; this relies heavily on the Ravenel–Wilson determination of the relevant Hopf ring. The resulting (i – 1)-connected H-spaces Yi have free connective Morava K-homology k(n)*(Yi), and may be built from the spaces in the Ω-spectrum for k(n) using only vn-torsion invariants.We also extend Quillen's theorem on complex cobordism to show that for any space X, the P(n)*-module P(n)*(X) is generated by elements of P(n)i(X) for i ≥ 0. This result is essential for the work of Ravenel–Wilson–Yagita, which in many cases allows one to compute BP–cohomology from Morava K-theory.</jats:p
A Transfer Report on the Development of a Framework to Evaluate Search Interfaces for their Support of Different User Types and Search Tactics
No full textAs the understanding of search systems, user needs and seeking strategies is developing, the design of search user interfaces is evolving to support more complicated and exploratory forms of search. With the design of new search features that enable these richer modes of exploration, comes the need to better understand the support they provide. In this report a new evaluation framework is presented that analyses search features for how they a) contribute to an overall interface, b) allow users to carry out different search tactics, and c) support different types of users and their needs. The novel contributions of the framework improve on some of the limitations of typical user studies, and allow search systems to be systematically analysed in much more detail and in much less time. The presented evaluation framework is then validated in three ways. First the validity of the models used as the building blocks of the framework are investigated through related work. Second the method of integrating these building-block models is validated and strengthened by consensus of expert opinion. Third, the overall approach is validated by comparing its analyses to the results of previously carried out user studies. The validation process has shown both the value of the framework and identified areas of future work that should be addressed for the framework to be completed. This report concludes with the set of contributions that the framework makes, and why the remaining work will be challenging, but critical to the final design
Age reading of Cabezon (Scorpaenichthys marmoratus): 1) comparison of thin-section and break-and-burn methods and 2) comparison of growth curve fits
No full textLeif K. Rasmuson, Lisa A. Kautzi, Lindsay Aylesworth, Megan N. Wilson, Kirsten Grorud-Colvert.Title from PDF title page (viewed on March 31, 2022).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 11-12).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Effects of initial conditions and Mach number in the evolution of Richtmyer-Meshkov instabilities
No full textWe present an experimental study of the effects of shock intensity and initial conditions on the evolution of Richtmyer-Meshkov Instabilities (RMI). This study is carried out in a vertical shock tube with a single interface of sulfur-hexafluoride and air. We use combined particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) to obtain simultaneous measurements of velocity and density. These measurements enable us to determine single- and multi-point statistics of vector, scalar, and combined fields. We use these statistical descriptors to study the evolution of turbulence mixing in RMIs under different Mach numbers and initial conditions
A Validated Framework for Measuring Interface Support for Interactive Information Seeking
No full textIn this paper we present the validation of an evaluation framework that models the support provided by search systems for different types of user and their expected types of seeking behavior. Factors determining the types of users include previous knowledge and goals. After an overview is presented, the framework is validated in two ways. First, the novel integration of the two existing information-seeking models used in the framework is validated by the correlation of multiple expert and novice analysis. Second, the framework is validated against the results produced by two separated user studies. Further, the refinements made by the first validation technique are shown to increase the accuracy of the framework through the second technique. The successful validation process has shown that the framework can identify both strong and weak areas of search interface design in only a few hours. The results produced can be used to either revise and strengthen designs or inform the structure of a user study
Simple drag prediction strategies for an Autonomous Underwater Vehicle’s hull shape
No full textThe range of an AUV is dictated by its finite energy source and minimising the energy consumption is required to maximise its endurance. One option to extend the endurance is by obtaining the optimum hydrodynamic hull shape with balancing the trade-off between computational cost and fluid dynamic fidelity. An AUV hull form has been optimised to obtain low resistance hull. Hydrodynamic optimisation of hull form has been carried out by employing five parametric geometry models with a streamlined constraint. Three Genetic Algorithm optimisation procedures are applied by three simple drag predictions which are based on the potential flow method. The results highlight the effectiveness of considering the proposed hull shape optimisation procedure for the early stage of AUV hull desig
The Europeanization of Interest Representation: A Strategic Decision-Making Analysis of UK Business and Environmental Interests
No full textThe point of departure for this paper is that the European Union (EU) has affected national politics, policies and polities. This process, labelled Europeanization, has led to changes in two interconnected political dimensions. First, it has led to modifications in the relationships between state and non-state actors within the national arena. Second, it has changed the interactions between the sub-national, national and supranational actors (state and non-state). To explore these propositions the paper conducts an analysis of the interest representation patterns exhibited by non-state actors. The paper compares firms (in the telecommunications, gas and electricity sectors) and environmental groups (focused on nature conservation or biodiversity policy), both based in the United Kingdom (UK), in order to determine how, to what extent and why Europeanization has affected their interest representation behaviour. The activities displayed by the two sets of interests are compared and contrasted in terms of chosen lobbying targets (i.e. national government departments and EU institutions), routes and allies (i.e. direct contact or via intermediaries such as Euro-groups) and the timing and character of the contact. Ideas and tools drawn from management science (i.e. strategic decision making analyses) are employed to assist in deriving the causal explanations for the Europeanized patterns of behaviour. It is argued that a combination of the three strategic decision making factors (i.e. internal organizational resources, objectives (and perceived rewards) and external political environments explain the contrasting behaviour of the firms and environmental groups
Surface current density K: an introduction
No full textThe author discusses the vector surface of current density K used in electrical insulation studies. K is related to the vector tangential electric field Kt at the surface of a body by the vector equation K=ΓE t where Γ represents the surface conductivity. The author derives a surface continuity equation that represents the boundary condition which the potential distributions in the adjoining media must fulfill. The volume current may be small in comparison to the surface current, and consequently in deriving the potential solutions the first term in this equation can sometimes be neglected
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