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By Monte Carlo calculations on a 124 lattice we investigate four-dimensional SU(2) lattice gauge theory with respect to the conjecture that at large distances this theory reduces approximately to two-dimensional SU(2) lattice gauge theory. We find good numerical evidence for this conjecture. As a by-product we also measure the SU(2) string tension and find reasonable agreement with scaling. The "a
A neural network algorithm for finding tracks in high energy physics experiments is presented. The performance of the algorithm is explored on modest size samples with encouraging results. It is inherently parallel and thus suitable for execution on a conventional SIMD architecture. More important, it naturally lends itself to direct implementations in custom made hardware, which would permit real
A F77 package of adaptive artificial neural network algorithms, JETNET 2.0, is presented. Its primary target is the high energy physics community, but it is general enough to be used in any pattern-recognition application area. The basic ingredients are the multilayer perceptron back-propagation algorithm and the topological self-organizing map. The package consists of a set of subroutines, which
We calculate differential cross sections for exclusive double diffractive (EDD) production of open charm in proton-proton and proton-antiproton collisions. Sizeable cross sections are found. The EDD contribution constitutes about 1% of the total inclusive cross section for open charm production. A few differential distributions are shown and discussed. The EDD contribution falls faster both with t
Statistik 10p ekologi BIO 580 Helsingborg HT 2004 Course analysis for ”Introduction to Accelerators and FEL, MAXM07” HT/VT 2019 Course responsible: Sverker Werin Other teachers: Francesca Curbis Number of students registered: 11 Course representative: Saskia Plura Grades: U - 1, G - 4, VG - 4. Analysis I. Summary of the course evaluations Total number of responses: 7 Short summary of the results:
Transformation and adaptation Transformation and adaptation: A research programme on the preconditions for governance and human progress Adaptation and transformation have for long been key subjects of study of many sciences ranging from evolutionary biology to business administration. This programme seeks to analyze the dynamic relationship between the environment (broadly defined) on the one han
https://www.pi.lu.se/sites/pi.lu.se/files/transformation_and_adaptation.pdf - 2026-05-20
Argentina, once among the world's wealthiest nations, has since the 1950s experienced economic turmoil marked by high inflation and currency depreciation. This thesis investigates the historical factors contributing to Argentina's persistent issues with inflation, with particular emphasis on the economic policies made since the 1940s. The study employs a historical institutionalism framewo
We report on recent new developments around the Astrometric Global Iterative Solution system. This includes the availability of an efficient Conjugate Gradient solver and the Generic Astrometric Calibration scheme that had been proposed a while ago. The number of primary stars to be included in the core solution is now believed to be significantly higher than the 100 Million that served as baselin
Popular Abstract in Swedish Denna studie är ämnad åt att undersöka joniseringsprocessen i gaser, både teoretiskt och experimentellt. Arbetet är speciellt riktat mot att utöka förståelsen för detta fenomen i förbränningsrummet av en förbränningsmotor. Den intensiva joniseringsprocessen som uppstår till följd av den antändande gnistan har studerats såväl som den svagare joniseringsprocessen som är r
Owing to their extreme crowding and high and variable extinction, stars in the Galactic Bulge, within ±2° of the Galactic plane, and especially those in the Nuclear Star Cluster, have only rarely been targeted for an analyses of their detailed abundances. There is also some disagreement about the high end of the abundance scale for these stars. It is now possible to obtain high dispersion, high S/
Med anledning av nya motivuttalanden och en ny rekommendation om god sed från Kollegiet för svensk bolagsstyrning angående likabehandling av aktieägare vid riktade emissioner utreder uppsatsen om rättsläget har blivit tillräckligt klarlagt och minoritetsaktieägarnas behov av skydd tillgodosett. Likabehandling av aktieägare anses ligga i bolagsformens grundidé om att öka aktieägarnas investerade kaThis paper investigates whether the field of law regarding equal treatment of shareholders, when targeting issues, is sufficiently clear. It also adresses if the need of minor shareholders’ protection since the recent preparatory work and the recommendation by Kollegiet for swedish corporate finance. Equal treatment of shareholders is a basic concept of the limited company. This concept is to inc
We discuss the tracing of star formation histories with ESAs spaceastrometry mission GAIA, emphasizing the advantages of AGB stars for thepurpose. GAIAs microarcsecond-level astrometry, multi-band photometryand spectroscopy will provide individual distances, motions,Teff, log g and [M/H for vast numbers of AGB stars in theGalaxy and beyond. Reliable ages of AGB stars can be determined t
Methods of VUV electron beam ion trap (EBIT) spectroscopy are applied to the study of Pm-like tungsten (W13+). These data show that theory appears well capable of dealing with these multi-electron (61) ions, at least for high ionization stages. A comparison of other spectroscopic methods applied to the study of other ions of the Pm I sequence is also given, and finally a search for the Pm-like W l
A systematic study is carried out on the angular distribution and polarization of photons emitted following radiative-recombination of bare and He-like ions of Ne, Ar, Ni and Mo with a unidirectional electron beam. In order to incorporate the screening effect due to inner-shell electrons, a distorted wave method is used. Scaling rules for polarization of the photon following radiative recombinatio
Popular AbstractI avhandlingen presenteras en undersökning av första linjens chefer i tre organisationer inom den offentliga sektorn. Den första är en verkstad inom Samhall, där arbetsledarna på verkstadsgolvet står i fokus. I den andra organisationen - hemtjänsten i en kommun- belyses hemtjänstassistenternas arbetsledning. Den tredje och sista organisationen är en klinik, s k basenhet, på ett lasThis doctoral dissertation concerns supervisors, i.e. first line mangers, in three different organizations within the public sector - a Samhall sheltered employment workshop, a municipality home-help service and a hospital clinic. The focus of my dissertation is the intermediate position of the supervisors and the strategies they use to manage their jobs in such a position. What all supervisors ha
