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Different Methods for Quark/Gluon Jet Classification on Real Data from the DELPHI detector

Different methods to separate quark jets from gluon jets have been investigated and tested on data from the DELPHI experiment. A test sample of gluon jets was selected from $bar{b}g$ threejet events where the two b-jets had been identified using a lifetime tag and a quark jet sample was obtained from $qar{q}gamma$ events where the photon was required to have a high energy and to be well separated

Överflöd och ofullbordan : Essä om det moderna

Popular Abstract in Swedish Den moderna epokens början återfinns i det sena sjuttonhundratalet och i Europa. Det är en epok, en kultur som förstår sig som både ny och som annorlunda i förhållande till tidigare epoker och kulturer, sådana som vilat på myter, religion och tradition. Den nya kulturens fundamentala insikt bestod i att ingenting måste vara så som det är, utan allt vore möjligt också påThe problem which the present study discusses is modernity. The study interprets modernity’s cultural and anthropological dispositions as historical appearances. Consequently, it is situated at the intersection of cultural sociology and historical anthropology. The aim is to generate insight and understanding rather than a coherent theory. The key element consists of combination and variation of c

Atomistic studies of the elastic properties of metallic Bcc nanowires and films

In this paper a systematic study of the surface influence on the elastic properties of nanosized iron and tungsten wires and films is performed. Single crystal defect-free nanowires and nanofilms are examined through molecular statics simulations, and the concepts of surface energy and third order elastic constants are used in an attempt to describe the elastic properties. For structures where the re

Ordet/odjuret: teriantropomorfism hos Giorgio Agamben

Den italienske filosofen Giorgio Agamben (f. 1942) reflekterar i sin L'aperto (2002) över människans försök att skilja sig från djuren, att skilja det mänskliga från det djuriska även inom människan. I denna studie placerar jag in denna bok dels i Agambens övergripande biopolitiska projekt, Homo sacer, dels in den filosofiska strömning som kallas posthumanism. Syftet är att analysera distinktionen

Laser-Induced Incandescence for Soot Particle Size Measurements in Premixed Flat Flames

Measurements of soot properties by means of laser-induced incandescence (LII) and combined scattering–extinction were performed in well-characterized premixed ethylene–air flames. In particular, the possibility of using LII as a tool for quantitative particle sizing was investigated. Particle sizes were evaluated from the temporal decay of the LII signal combined with heat balance modeling of lase