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BEAN is a recent stream cipher proposal that uses Feedback with Carry Shift Registers (FCSRs) and an output function. There is a sound motivation behind the use of FCSRs in BEAN as they provide several cryptographically interesting properties. In this paper, we show that the output function is not optimal. We give an efficient distinguisher and a key recovery attack that is slightly better than brut
n this paper a hardware architecture for an OFDM synchronizer is presented. The proposed synchronization unit can be used in any OFDM system that uses a cyclic prefix. The algorithm is based on the correlation introduced by the cyclic prefix, which is exploited in the time domain where both time and frequency offset are estimated simultaneously. The synchronization unit also performs frequency cor
En central del i de flesta psykoterapeutiska inriktningar utgörs av hur man ser på emotioner samt vilka konsekvenser olika sätt att förhålla sig till eller reglera emotionerna får: Ur ett psykoanalytiskt perspektiv ses primitiva och rigida försvarsmekanismer riktade mot omedvetna affekter, drifter och impulser, som en viktig bidragande faktor till utvecklandet av psykiska besvär (Weiner & BornThe general aim of the present thesis was to further our understanding of cognitive restructuring and acceptance, both as concepts and as psychological processes related to emotion regulation. In doing this, concepts and processes related to cognitive restructuring and acceptance were examined in four different studies using different designs and methodologies. The main purpose of Study I was to
Boken skildrar den senaste forskningens syn på historisk utveckling åren 400-800 e.Kr. i Västeuropa. Den är uppdelad i fyra huvudavdelningar: (1) Ett politiskt skelett, (2) Människorna, deras liv och försörjning, (3) Den tidigmedeltida idévärlden: trosföreställningar och kultur, (4) Människan i samhället: krig, lag, makt och kön. Huvudbudskapet är att förändringen i det europeiska samhället under
Abstract is not available.
Popular Abstract in Swedish För unga personer med funktionsnedsättningar är det viktigt att vara som alla andra och därmed inte avvika från mängden på ett för personen oönskat sätt. Hjälpmedel är produkter som en person med en eller flera funktionsnedsättningar kan använda för att kunna vara delaktig i vårt samhälle. Dessa produkter möjliggör för personen att delta i de sociala aktiviteter han ellFor young persons with disabilities it is important to be as everyone else and not deviating from the normative in an unwanted way. Assistive devices are products that persons with disabilities can use to get accessibility to our society. Such products enable the person to participate in activities he or she wishes to take part in. However assistive devices are also a sign for disability, indicati
This book chapter discusses the oppositonal and activist laughter. The example used is the art activist group Guerrilla Girls.
Work place design based on traditional ergonomic science has, to a large extent, been delimited by information collected from studies of individual human beings. This research approach has not been proven to influence industry shop floor work to an extent corresponding to what could be expected from research efforts (Winkel and Westgaard, 1995). Thus the practitioners are left to decide about the
This paper describes power optimization techniques applied to a reconfigurable digital finite impulse response (FIR) filter used in a Universal Mobile Telephone Service (UMTS) mobile terminal. Various methods of optimization for implementation were combined to achieve low cost in terms of power consumption. Each optimization method is described in detail and is applied to the reconfigurable filter
