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Solar electricity is one of the most promising technologies for our future electricity supply. By using concentrators, it is possible to reduce the cost of generating photovoltaic electricity. This thesis discusses how to design stationary low concentrating systems for photovoltaic or PV/Thermal applications. The first chapters briefly explain the optics of solar energy concentrators. The theoreti
Abstract in UndeterminedMost people in the world speak more than one language and many learn it as adolescents or adults. The study of second language acquisition (meaning any language learnt after the first language) is concerned with how a new language develops in the presence of an existing one. Since gestures are an integral part of communication, subject to crosslinguistic, socio- and psychol
Popular Abstract in Swedish Är narkomaners personlighet relaterad till den drog som de valt att använda och föredrar? Detta undersöktes i en grupp om 128 tunga narkotikamissbrukare varav 37 var kvinnor och 91 män. De tre droger det gällde var heroin, som användes av 30 kvinnor och 52 män, amfetamin (7 kvinnor och 32 män) och hasch (7 män). Narkomanernas personlighet bestämdes med hjälp av två percThe topic dealt with in this thesis is whether, as Wieder and Kaplan (1969) suggest, the personality of drug addicts is related to their particular drug of choice. The subjects were 128 heavy drug addicts, 37 women and 91 men, each of them selected for the fact of there being one basic drug he/she abused. The drug of choice was either heroin (30 women, 52 men), amphetamine (7 women, 32 men) or can
There is considerable evidence that children and adolescents with autistic spectrum disorders (ASD) are at increased risk of anxiety and anxiety disorders. However, it is less clear which of the specific DSM-IV anxiety disorders occur most in this population. The present study used meta-analytic techniques to help clarify this issue. A systematic review of the literature identified 31 studies invo
In the late 1950's the first complete translation of the Revelations of St Birgitta was published by Allhem Förlag, a publisher in Malmö. The publishers spared no pains to achieve a handsome result: a well-known book designer, Harry Kumlien, was employed; a great number of illustrations was acquired, and the quarto format was chosen for the four volumes. The result is impressive, and the Allhem vo
Essä om Samuel Becketts experimentfilmer med videoteknik som exempel på Jacques Lacans teori om att det omedvetna är strukturerat som ett språk.
