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Är anonyma tentamina objektiva och rättvisa?

"Anonyma tentor är just nu en av de hetaste trenderna i högskole-Sverige" skrev Svenska Dagbladet i mars 2008 (http://www.svd.se/nyheter/inrikes/artikel_964731.svd ) Frågan har under några år drivits av studentkårerna, men verkar i de flesta fall ha införts av universitetens och högskolornas ledning utan diskussion och förankring i lärarkåren och utan analys av relationen mellan fördelar och nackd

Globalisation and language contact: impact on historical change and exceptions

Language contact through globalisation has indeed influenced various changes in a number of human languages in different corners of the world. In recent years, some scholars have focused particularly on language contact as a reason behind historical changes, and some even consider that the language contact is the major force. In this paper, however, it is argued that language contact can be neglig

Sum rules and physical bounds on passive metamaterials

Frequency dependence of the permittivity and permeability is inevitable in metamaterial applications such as cloaking and perfect lenses. In this paper, Herglotz functions are used as a tool to construct sum rules from which we derive physical bounds suited for metamaterial applications, where the material parameters are often designed to be negative or near zero in the frequency band of interest.

Monolithic single-mode SU-8 waveguides for integrated optics

We present the fabrication and characterization of single mode waveguides fabricated monolithically in SU-8. SU-8 is a negative resist, which can be structured by UV lithography followed by a baking step to induce cross-linking. As a material platform, SU-8 is well suited for systems used for biochemical analysis, as it possesses very high chemical resistance and good mechanical stability. Here we

Modeling and Optimization with Modelica and Optimica Using the JModelica.org Open Source Platform

This paper reports a new Modelica-based open source project entitled JModelica.org, targeted towards dynamic optimization. The objective of the project is to bridge the gap between the need for high-level description languages and the details of numerical optimization algorithms. JModelica.org is also intended as an extensible platform where algorithm developers, particularly in the academic commu

Greening the world economy through cities

Besides comprising a majority of the world’s population, cities concentrate disproportional amounts of the world’s economy and decision-making power. Further, though urban areas cover only around two percent of the Earth’s surface, they consume 75 percent of its resources. Yet as a hub for social and political movements and centres of technological and institutional knowledge and innovation, citie

Max- and Sum-Separable Lyapunov Functions for Monotone Systems and Their Level Sets

For interconnected systems and systems of large size, aggregating information of subsystems studied individually is useful for addressing the overall stability. In the Lyapunov- based analysis, summation and maximization of separately constructed functions are two typical approaches in such a philosophy. This paper focuses on monotone systems which are common in control applications and elucidates