Sökresultat

We show that twisting of an infinite straight three-dimensional tube with non-circular cross-section gives rise to a Hardy-type inequality for the associated Dirichlet Laplacian. As an application we prove certain stability of the spectrum of the Dirichlet Laplacian in locally and mildly bent tubes. Namely, it is known that any local bending, no matter how small, generates eigenvalues below the es

Building on Boltanski’s and Thévenot’s notion of the plurality of forms of worth, the chapter focuses on the tension between the world of art (with an inspirational order of worth) and the community organiser’s world (guided by a civic principle of worth). Empirical material comes from VoS, a non-profit community-arts organization in Sweden. The chapter follows the sequence of events, criticisms,

Urbanization has resulted in a gigantism of urban complexes and in many environmental and social problems. The situation on the surface and the principles of sustainable development compel urban planners to utilize the urban underground space, which for centuries has been almost exclusively the application field of mining. More often than not spatial planning in urban areas allocates various land-

Allt som vi ser och arbetar med i vårt vardagliga liv består av atomer. De är mycket små, omkring 10-10 meter. De syns inte med blotta ögat, utan kräver avancerade elektronmikroskop. Men atomerna själva består av ännu mindrebeståndsdelar, ett elektronmoln som kretsar kring en kärna.Atomkärnan består av neutroner och protoner och är bara cirka 10-15 meter stor. Neutroner och protoner hålls samman This thesis focusses on the results of two experiments employing Penning traps to prepare pure beams of the 213Ra ground state and 127Cd, which were then studied with the decay-spectroscopy setup TASISpec. The experiments were conducted with SHIPTRAP at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany, and JYFLTRAP at the IGISOL Accelerator Facility at the University of Jyvä

To illustrate the importance of biomechanical impact on tissue health within the central nervous system (CNS), we herein describe an in vitro model of rhegmatogenous retinal detachment (RRD) in which disruption and restoration of physical tissue support can be studied in isolation.

BACKGROUND: The extent of site and tissue-associated immune privilege is of great interest in transplantation experiments involving the CNS. In the present paper we have explored neuroretinal immune privilege by transplantation to a non-immune privileged site. METHODS: Fetal and adult full-thickness rabbit neuroretinal grafts were placed in the subconjunctival space of immunocompetent rabbit hosts

This ia a review of Aki Lehtinen, Jaakko Kuorikoski, and Petri Ylikoski’s "Economics for real: Uskali Mäki and the place of truth in economics".