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Tvång och rädsla. Om äktenskapshinder i medeltida kanonisk rätt

According to medieval canon law, a marriage could be declared invalid if the consent had been given through force or fear. This ruling was a natural consequence of the insistence on free consent as the only requirement for a valid marriage. It did, however, entail a number of both practical and theoretical problems. It could be difficult to prove force and fear within the family, but also to defin

Very easily decodable nonlinear cyclic codes

A class of nonlinear binary cyclic codes of length n=m2m, constant weight w=m2m-1, and minimum distance dmin=2m, with M=n codewords for every m⩾2 is introduced. The decoding computation is shown to be equivalent to performing two correlations of fixed sequences with the received word

Christopher Polhem: Technical innovations and the metaphorical mind

Christopher Polhem (1661-1751), called the father of Swedish mechanics, is the most famous figure in Swedish history of technology and our nation's foremost inventor ever. Remarkably enough, a close survey in a monograph has never been written on this inventor who in many ways initiated the technical and industrial development of Sweden. In this project will Polhem for the first time get a broad a

It takes two to Tango!

If you want to become “teacher of the year“ - how do you do? The easy answer is to get yourself a group of “students of the year“! But, if you don't have that – how do you help your average students to become “students of the year“? In order to do that we must be active and take pedagogical leadership. In this roundtable we want to discuss questions like: • How can we stimulate the students’ inter