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The time-domain theory of forerunners (precursors) in temporally dispersive, nonmagnetic, isotropic materials is developed using the propagator technique. Specifically, the impulse response at a (comparatively) large propagation depth is expanded in two different ways: (a) with respect to the wave-front and (b) with respect to slowly varying field components. A few numerical examples illustrating

Narrowband radio transmitters like radio amateurs and broadcast radio stations are considered to be a serious problem for high-bitrate data transmission over twisted pairs. Due to its high power level, radio frequency interference (RFI) has the potential of overloading the receiver's analog-to-digital converter (ADC). Once the ADC is in saturation, any countermeasure taken in the digital domain wi

Since 1989, the authors have given courses in research methodology, and these courses are now given at six venues in southern Sweden, as well as in Denmark. The course corresponds to half a year's full-time study, with half the time devoted to lectures and studies of literature, while the rest is spent on an individual project under supervision. To enable part-time study, the course extends over 1

The aim of this exploratory study is to show how visual information is verbally transmitted in an experimental task. The overall theoretical framework adopted is a modification of Chafe 1994. An experiment was designed in which a drawer was assigned the task of reproducing a stimulus picture relying only on verbal information provided by a describer. No visual contact was allowed between the subje

Abstract in French Cet article présente les résultats d’une étude pilote sur la production des verbes réguliers en –er par des adultes suédophones débutants en français langue étrangère. L’objectif est d’une part de voir dans quels contextes les apprenants produisent des formes du type je parlE et d’autre part de voir si l’input auquel les apprenants sont exposés en favoriserait l’émergence. Le ca

Memory for pictures and words - perceptual and semantic factors in the picture superiority effect Georg Stenberg, Växjö University, Sweden Memory for pictures is known to surpass memory for corresponding concrete words, an effect often attributed to the more distinctive perceptual form of pictures. A consequence of this view is that picture superiority would not survive a transformation in which o

Abstract Background: Total plasma homocysteine (tHcy) concentration is increased in elderly patients with mental illness. Also, patients with vascular disease have significantly higher plasma tHcy concentration compared with patients without vascular disease. Apolipoprotein E (apoE) status is associated with cardiovascular disease and a major genetic risk factor is inheritance of the e4 allele. In