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Early events in T cell development

Popular Abstract in Swedish Immunförsvaret är till för att bekämpa patogener såsom bakterier, virus, parasiter och svamp. Det kan också bekämpa cancerceller även om dessa har en förmåga att undkomma till slut. För att kunna känna igen och eliminera främmande kroppar måste immunförsvaret kunna skilja på dem och våra kroppsegna ämnen. Immunförsvaret består av vita blodkroppar. Vita blodkroppar är enT cells constitute a heterogenous population of lymphocytes. Their unifying property is that they express surface bound antigen-receptors, called T cell receptors (TCRs). The TCR is a heterodimer composed of either TCRalpha and beta chain proteins (alphabeta TCR) or gamma and delta chain proteins (gammadelta TCR). Depending on which TCR isotype that is expressed, the T cells are divided into alpha

A scalable pipelined complex valued matrix inversion architecture

This paper presents a fast, pipelined and scalable hardware architecture for inverting complex valued matrices. The matrix inversion algorithm involves, a QR-factorization based on the squared Givens rotations algorithm, the application of a recurrence algorithm for inversion of an upper triangular matrix R, and a matrix multiplication of R-1 with Q. We show that traditional triangular array archi

Tracking the Mind's Eye

This thesis investigates, in three studies based on eye-tracking experiments, the relationship between eye movements and mental imagery. The first study is an investigation of eye movements during mental imagery elicited both visually and verbally. The use of complex stimuli and the development of a novel method where eye movements were recorded concurrently with verbal data enabled this relation

Management by Recognition: An Interactionist Study of Normative Control in Voluntary Work

Many contemporary work organizations are concerned with how they can influence employees’ intrinsic motivation. Their quest follows a widespread realization that people do not necessarily work harder because of monetary incentives or direct commands. Instead, people’s inner motives, their urge to self-realize and get recognition, are seen as key factors influencing workers’ mindsets and behaviors.