Filtyp
This thesis describes analysis of data from the DELPHI Very Small Angle Tagger (VSAT) calorimeter at LEP1. The VSAT consists of four Silicon-Tungsten calorimeter modules symmetrically positioned 7.7 meters away from the interaction point. It measures elastically scattered electrons and positrons, Bhabha events, within the polar angular region between 5-12 mrad. Trigger efficiency and reconstructio
This book shows that the intensity of use of energy and materials in OECD countries is diminishing over time despite falling metal and energy prices. Material demand is sometimes falling in absolute terms, but there are also a few examples of rapid growth. The supply of fossil fuels and minerals is being exhausted, in some cases at a rapid speed, but the question addressed here is whether the rat
Using the nonlinear creep law proposed by Soderberg, closed-form solutions are derived for the relaxation of incompressible thick-walled spheres and cylinders in plane strain. These solutions involve series expressions which, however, converge very quickly. By simply ignoring these series expressions, extremely simple approximate solutions are obtained. Despite their simplicity these approximation
Popular Abstract in Swedish Benskörhet (osteoporos) är en sjukdom, som leder till att benstommen förlorar en del av sitt kalkinnehåll och sin styrka. Benbrott kan därigenom uppstå spontant eller vid lättare påfrestningar. Gastrektomi (kirurgiskt avlägsnade av magsäcken, GX) och ovariektomi (kirurgisk avlägsnade av äggstockarna, OVX) leder till benskörhet hos människa såväl som hos försöksdjur. MedBoth ovariectomy (OVX) and gastrectomy (GX) cause osteopenia in several animal species including humans. While the effect of OVX has been ascribed to estrogen deficiency, the underlying mechanism behind GX-induced osteopenia is poorly understood. Nutritional deficiencies, including lack of calcium and vitamin D, have been claimed to cause the osteopenia induced by GX. This thesis attempts to clari
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Popular Abstract in Swedish Ben, brosk och mjukvävnad (utgörs av den tvärstrimmiga muskulaturen, fettväv och fibrös bindväv, men också av det perifera nervsystemet) är vävnader av mesenkymalt eller neuroektodermalt ursprung. De flesta tumörer som uppstår i dessa vävnader är godartade och blir därför ofta inte föremål för behandling, vilket gör det svårt att uppskatta incidensen i befolkningen. EnlBone and soft tissue tumors (BSTT) constitute a heterogeneous group of neoplasms of mesenchymal and neuroectodermal origin. Although many BSTT are rare, it has become clear that BSTT are characterized by recurrent acquired chromosomal aberrations, and the general aim of this thesis have been to apply molecular genetic and molecular cytogenetic techniques to further characterize recurrent breakpoin
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