Detailed particle size distribution of elemental constituents have been determined in the St. Louis aerosol by sampling with cascade impactors for particles >0.25 μm aerodynamic diameter and by analyzing using proton-induced X-ray emission, PIXE, for S, Cl, K, Ca, Ti, Mn, Fe, Zn, Br, and Pb. Two rooftop sites were selected for intensive sampling in industrial and residential locations in St. Louis

As embedded systems become more and more complex, and the time to market becomes shorter, there is a need in the embedded systems community to find better programming languages that let the programmers develop correct code faster. The programming languages used today, typically C and/or Assemblers, are just too error-prone. The Java technology has therefore gained a lot of interest from developers

There are many possible definitions of “technology” and I will discuss some of these in this book. However, in this introduction let me use a definition of Svante Lindqvist who defines technology very intuitively as “those activities, directed towards the satisfaction of human wants, which produce change in the material world.” He says also “the distinction between human “wants” and more limited h

Under livets utveckling på jorden har solljuset med sitt karakteristiska spektrum och sin dygnsvariation haft en avgörande betydelse, t ex att vi har olika hudfärg, att vi blir solbrända, att vi har en 24-timmars dygnsrytm. Detta behandlas under rubrikerna Solljusets inverkan på huden; Årstidsrelaterad nedstämdhet; Skiftarbete och arbete under jord; Belysningsplanering för bättre hälsa; Färgsättni

Cellulose is one of the most abundant biopolymers on earth. Several organisms degrade cellulose, one of the most studied is the fungus Trichoderma reesei which produces seven genetically different cellulases. In this thesis, a thorough study of the hydrolytic characteristics of the less studied endoglucanases Cel12A (EG III), Cel45A (EG V) and Cel61A (EG IV) of T. reesei is presented. Cel12A showe

Asymptotic iterative decoding performance of low-density parity-check (LDPC) convolutional codes is analyzed. An important role within the analysis is a theorem on the minimal length of cycles in the Tanner graph describing a code

The design of efficient data structures is of primary importance in creation of theoretical algorithms as well their more tangible descendants, computer programs. In this dissertation we study computational aspects of data structures and their respective algorithms from a theoretical viewpoint, which are however of direct importance in the implementation of solutions for real-world problems. We pr

Det övergripande syftet med denna studie är att finna strategier för att skapa ett friskare arbetsliv långt upp i åren och för att se äldre medarbetare som en viktig resurs vilket organisationen bör värna om och förvalta. I denna rapport studeras enkätsvaren från cirka 2 000 medarbetare 55 år eller äldre inom hälso- och sjukvården. De svarande kom från yrkesgrupperna läkare, sjuksköterska, sjukgym