High Temperature QCD and Dimensional Reduction

In this talk I will first give a short discussion of some lattice results for QCD at finite temperature. I will then describe in some detail the technique of dimensional reduction, which in principle is a powerful technique to obtain results on the long distance properties of the quark-gluon plasma. Finally I will describe some new results, which test the technique in a simpler model, namely three dimensional gauge theory.Comment: talk presented at the International Workshop on Non-Perturbative Methods and Lattice QCD, Guangzhou, May 2000, 9 pp. LaTeX2e, uses ws-p8-50x6-00.cls (enclosed), 2 eps fig

Nationella nätverket i pedagogik. Rapport till NSHU

The national network in the subject of Educational Science met for the first time in the spring 2006 at Lund University. The purpose of the national network is to discuss curricula and ex-pected learning outcomes in courses, programmes on the first and the second cycle and also entrance requirements to doctorial studies in educational science. In relation to the reform of higher education and the revised Higher Education Ordinance in Sweden the first of July 2007, the network had the opportunity to describe and discuss the local situation on many institutes of higher education both during the planning phase before the implementation date and the experience from the first enrolment to the new courses and programmes in the autumn semester 2007. The national network has a common website, where general information about development work is presented. The website also have an intranet, where the members of the network dis-cuss syllabus, obstacles to study due to different entrance requirements, time schedules etc. The network members have ambitions to join in the collaborative development of courses on the advanced level (second cycle). Many institutes can benefit from common courses, since the total numbers of students willing to attend on that level are small. Also, some institutes lack programmes for doctorial studies in the subject of educational science and hence are obliged to cooperate with the universities. Until October 2007 the network had in all four national meetings. Over twenty institutes of higher education are active members of the network, which during 2007 was sponsored by the Swedish Agency for Networks and Cooperation in Higher Education

From 4D Reduced SYM Integrals to Branched-Polymers

We derive analytically one-loop corrections to the effective Polyakov-line operator in the branched-polymer approximation of the reduced four-dimensional supersymmetric Yang-Mills integrals.Comment: to be published in Acta Physica Polonic

Semiclassical Geometry of 4D Reduced Supersymmetric Yang-Mills Integrals

We investigate semiclassical properties of space-time geometry of the low energy limit of reduced four dimensional supersymmetric Yang-Mills integrals using Monte-Carlo simulations. The limit is obtained by an one-loop approximation of the original Yang-Mills integrals leading to an effective model of branched polymers. We numerically determine the behaviour of the gyration radius, the two-point correlation function and the Polyakov-line operator in the effective model and discuss the results in the context of the large-distance behaviour of the original matrix model.Comment: 14 pages, 5 figures, corrected version v

On relating multiple M2 and D2-branes

Due to the difficulties of finding superconformal Lagrangian theories for multiple M2-branes, we will in this paper instead focus on the field equations. By relaxing the requirement of a Lagrangian formulation we can explore the possibility of having structure constants $f^{ABC}{}_D$ satisfying the fundamental identity but which are not totally antisymmetric. We exemplify this discussion by making use of an explicit choice of a non-antisymmetric $f^{ABC}{}_D$ constructed from the Lie algebra structure constants $f^{ab}{}_c$ of an arbitrary gauge group. Although this choice of $f^{ABC}{}_D$ does not admit an obvious Lagrangian description, it does reproduce the correct SYM theory for a stack of $N$ D2-branes to leading order in $g_{YM}^{-1}$ upon reduction and, moreover, it sheds new light on the centre of mass coordinates for multiple M2-branes.Comment: 9 pages, references added and statements concerning the fundamental identity revise

Dispensed drugs and multiple medications in the Swedish population: an individual-based register study

BACKGROUND Multiple medications is a well-known potential risk factor in terms of patient's health. The aim of the present study was to estimate the prevalence of dispensed drugs and multiple medications in an entire national population, by using individual based data on dispensed drugs. METHODS Analyses of all dispensed out-patient prescriptions in 2006 from the Swedish prescribed drug register. As a cut-off for multiple medications, we applied five or more different drugs dispensed (DP >or= 5) at Swedish pharmacies for a single individual during a 3-month, a 6-month, and a 12-month study period. For comparison, results were also calculated with certain drug groups excluded. RESULTS 6.2 million individuals received at least one dispensed drug (DP >or= 1) during 12 months in 2006 corresponding to a prevalence of 67.4%; 75.6% for females and 59.3% for males. Individuals received on average 4.7 dispensed drugs per individual (median 3, Q1-Q3 2-6); females 5.0 (median 3, Q1-Q3 2-7), males 4.3 (median 3, Q1-Q3 1-6).The prevalence of multiple medications (DP >or= 5) was 24.4% for the entire population. The prevalence increased with age. For elderly 70-79, 80-89, and 90-years, the prevalence of DP >or= 5 was 62.4, 75.1, and 77.7% in the respective age groups. 82.8% of all individuals with DP >or= 1 and 64.9% of all individuals with DP >or= 5 were < 70 years. Multiple medications was more frequent for females (29.6%) than for males (19.2%). For individuals 10 to 39 years, DP >or= 5 was twice as common among females compared to males. Sex hormones and modulators of the genital system excluded, reduced the relative risk (RR) for females vs. males for DP >or= 5 from 1.5 to 1.4. The prevalence of DP >or= 1 increased from 45.1 to 56.2 and 67.4%, respectively, when the study period was 3, 6, and 12 respectively months and the corresponding prevalence of DP >or= 5 was 11.3, 17.2, and 24.4% respectively. CONCLUSION The prevalence of dispensed drugs and multiple medications were extensive in all age groups and were higher for females than for males. Multiple medications should be regarded as a risk in terms of potential drug-drug interactions and adverse drug reactions in all age groups

Correlation with large transverse momentum photons and the gluon structure function

Baier R, Engels J, Petersson B. Correlation with large transverse momentum photons and the gluon structure function. Zeitschrift für Physik, C: Particles and Fields. 1980;6(4):309-316

Control Structure Assessment in an Industrial Control System

This paper describes the implementation of a structure assessmentmethod in an industrial control system. The method uses available signals to evaluate if a given signal can be used for additional feed forward control action to improve the performance of a control loop

Anisotropic Vapor HF etching of silicon dioxide for Si microstructure release

Damages are created in a sacrificial layer of silicon dioxide by ion implantation to enhance the etch rate of silicon-dioxide in liquid and vapor phase hydrofluoric acid. The etch rate ratio between implanted and unimplanted silicon dioxide is more than 150 in vapor hydrofluoric acid (VHF). This feature is of interest to greatly reduce the underetch of microelectromechanical systems anchors. Based on the experimentally extracted etch rate of unimplanted and implanted silicon dioxide, the patterning of the sacrificial layer can be predicted by simulation

Physicians' attitudes towards eprescribing: a comparative web survey in Austria and Sweden

Background The eHealth Action Plan required the member states of the European Union (EU) to provide online services such as eprescribing of pharmaceuticals by the end of 2008. So far, implementation activities and efforts of the member states have been uneven. While in Austria pilot projects and feasibility studies have been conducted, Sweden has always been one of the leading countries in the field of eprescribing. Objective To identify potential success factors for the implementation of eprescribing in Sweden, by comparing the attitudes of Austrian and Swedish physicians. Method In a web survey, we asked 1824 Austrian and 427 Swedish physicians within primary care and other disciplines to declare to what extent they agreed with ten statements regarding their attitudes towards eprescribing. We deployed the chi-square test for testing the relationship between the country of residence of physicians and their attitudes towards eprescribing. Results We demonstrated a relationship between the country of residence of physicians and their attitudes towards eprescribing (P<0.001) for all the responses. Of the Swedish physicians, 92% regarded eprescribing as time-saving, 88.1% as being safer and 96.0%as providing a better service for patients. Although less strongly supportive, the attitudes of the Austrian physicians were mainly positive. Conclusion We found that the major potential success factors for the implementation of eprescribing in Sweden were saving of time for the physician, improved safety and better service for patients. The mainly positive attitudes of the Austrian physicians may enable implementation of eprescribing in due course