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Course management software : supporting the university’s teaching with technology initiatives
(2004)
An increasingly important element of the teaching with technology activities at Northwestern University is the course management system, a web-based class communication and administration environment. The usage growth of the system is substantial and amplifies the need for integration with other web services and resources. Integration is particularly material in area of library services. This presentation contains a case study of Northwestern University's implementation of its course management system software and highlights examples of how the system is being used to enhance the teaching and learning. A description of the integration efforts with library resources is provided. The goal of the presentation is to equip librarians with the basic knowledge required to engage with their colleagues in conversations surrounding the nature of integration of these systems within the teaching and learning landscapes of their home institutions.
The key hypothesis is that the IT industry lure us into the IT world with a promise to solve our information problems. Do we sign the contract, we will recognise that the IT industry can´t keep the promise. One reason: they themselves lost sight over there own game. Therefore they have to invent new tools continiously. LIS professionals should not leave the field IT professionals. LIS professional should rather put stress on to reveal the difference in the value chain between data – information – knowledge. Information and knowledge is brainware and not produced by hard and software in the sense of IT philosophy. Against the background of the language game of Jean-François Lyotard, the author explains the information and knowledge society as language game invented by the IT industry. Furthermore his beliefs of postmodernen LIS professionals and the consequences involved for LIS traning will be presented.
US investors hold much less foreign stocks than mean/variance analysis applied to historical data predicts. In this article, we investigate whether this home bias can be explained by Bayesian approaches to international asset allocation. In contrast to mean/variance analysis, Bayesian approaches employ different techniques for obtaining the set of expected returns. They shrink sample means towards a reference point that is inferred from economic theory. We also show that one of the Bayesian approaches leads to the same implications for asset allocation as mean-variance/tracking error criterion. In both cases, the optimal portfolio is a combination the market portfolio and the mean/variance efficient portfolio with the highest Sharpe ratio.
Applying the Bayesian approaches to the subject of international diversification, we find that substantial home bias can be explained when a US investor has a strong belief in the global mean/variance efficiency of the US market portfolio and when he has a high regret aversion falling behind the US market portfolio. We also find that the current level of home bias can justified whenever regret aversion is significantly higher than risk aversion.
Finally, we compare the Bayesian approaches to mean/variance analysis in an empirical out-ofsample study. The Bayesian approaches prove to be superior to mean/variance optimized portfolios in terms of higher risk-adjusted performance and lower turnover. However, they not systematically outperform the US market portfolio or the minimum-variance portfolio.
In the current globalization debate the law appears to be entangled in economic and political developments which move into a new dimension of depoliticization, de-centralization and de-individualization. For all the correct observations in detail, though, this debate is bringing about a drastic (polit)economic reduction of the role of law in the globalization process that I wish to challenge in this paper. Here one has to take on Wallerstein’s misconception of “worldwide economies” according to which the formation of the global society is seen as a basically economic process. Autonomous globalization processes in other social spheres running parallel to economic globalization need to be taken seriously. In protest against such (polit)economic reductionism several strands of the debate, among them the neo-institutionalist theory of “global culture”, post-modern concepts of global legal pluralism, systems theory studies of differentiated global society and various versions of “global civil society” have shaped a concept of a polycentric globalization. From these angles the remarkable multiplicity of the world society, in which tendencies to re-politicization, re-regionalization and re-individualization are becoming visible at the same time, becomes evident. I shall contrast two current theses on the globalization of law with two less current counter-theses: First thesis: globalization is relevant for law because the emergence of global markets undermines the control potential of national policy, and therefore also the chances of legal regulation. First counter-thesis: globalization produces a set of problems intrinsic to law itself, consisting in a change to the dominant lawmaking processes. Second thesis: globalization means that the law institutionalizes the worldwide shift in power from governmental actors to economic actors. Second counter-thesis: globalization means that the law has a chance of contributing to a dual constitution of autonomous sectors of world society.
The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as to model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to transform the hot and dense nuclear matter into a deconfined phase.
Vor gut einem Jahr ist im Archiv für die civilistische Praxis ein Aufsatz erschienen, in welchem ich mich mit den Perspektiven des Verbrauchervertragsrechts nach der Schuldrechtsreform auseinandergesetzt habe. Der leicht provozierende Unterton der dort vorgetragenen Kritik hat nun nicht nur – wie beabsichtigt – den einen oder anderen Leser zum Lachen verführt, sondern offensichtlich auch Irritationen bezüglich der Richtung hervorgerufen, in die der Verbraucherschutzzug in Zukunft fahren soll: zurück in die Siebziger Jahre und – nach erneutem Schlagen vergangener Schlachten – ins bürgerliche Formalrecht des 19. Jahrhundert? Oder was soll mit dem Stichwort "Prozedurales Verbrauchervertragsrecht" gemeint sein? Ich möchte an dieser Stelle einen Präzisierungsversuch unternehmen.
We present a detailed study of chemical freeze-out in nucleus-nucleus collisions at beam energies of 11.6, 30, 40, 80 and 158A GeV. By analyzing hadronic multiplicities within the statistical hadronization approach, we have studied the chemical equilibration of the system as a function of center of mass energy and of the parameters of the source. Additionally, we have tested and compared different versions of the statistical model, with special emphasis on possible explanations of the observed strangeness hadronic phase space under-saturation.
Fluctuations and NA49
(2005)