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Mentometrar (”clickers”) är ett verktyg som kan användas för att göra snabba utvärderingar av studenters kunskap och förståelse under t.ex. en föreläsning (s.k. classroom assessment), och studier har visat att de förbättrar både lärande och uppmärksamhet (Keough 2012). Genom sådana formativa utvärderingar får både studenter och lärare omedelbar återkoppling som kan hjälpa till att identifiera områ
In the Kongsfjorden area in NW Svalbard, there are several stratigraphic sites containing information on Quaternary environmental change, and which can be used to reconstruct local depositional conditions, regional events such as large-scale glaciations and relative sea-level change. Here, we present results from an investigation of one of these sites, the Kongsfjordhallet coastal sections, which
In this work, we introduce a block sparse reconstruction technique to estimate backscattered echoes from underwater targets. The backscattered field of a spherical shell or the broadside scattering of a cylindrical shell contains a specular reflection as well as some elastic leaky surface waves, while the elastic parts appear as a periodic signal, which may be modeled using a block pattern. Thus,
In this paper, we examine the problem of target detection for the multistatic passive radar. Passive radar systems leverage the existing wireless sources, such as radio/TV stations and cellular signals that are referred to as illuminators of opportunity (IOs), to illuminate the environment and provide surveillance functions. Usually, these IO source signals are sparse or locally sparse in the freq
To gather information regarding how to best assist liver transplant recipients in improving their self‐care capacity and well‐being, we investigated their total health situation. A retrospective, cross‐sectional survey with up to a 10‐year follow‐up concerning experienced health and quality of life after liver transplantation (LTX) was conducted. The aim of this study was to provide descriptive da
