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Many studies have reported higher total plasma homocysteine (tHcy) in elderly patients with mental illness than in control subjects. There are many different determinants of plasma tHcy concentration, including age, cobalamin/folate status, renal function and the presence of vascular disease. The presence of vascular disease may contribute to cognitive impairment. We have investigated elderly pati

Popular Abstract in Swedish Utveckling av beröringsfri teknik för att styra och kontrollera metallurgiska hög temperatur processer. Befintlig teknik kräver kontakt med mediet av intresse vilket medför att överlevnadstiden för probar och sensorer är kort. I den har avhandlingen beskrivs arbetet med att utveckla och ta i bruk beröringsfri mätteknik för övervakning och kontroll av metallurgiska framsThe steel- and metal industry has an extensive production processing comprising many different process steps of solid, gaseous and liquid nature. Thus it is obvious that a number of different measurement technologies must be used to collect and evaluate key physical parameters which are necessary to control the production processes. In this respect, the software to monitor the processes have, duri

This paper is concerned with the numerical computation of the Titchmarsh-Weyl M matrix. We show how an algorithm may be developed which relates solutions of an initial-value problem to an approximation of the M matrix. In some special cases we compare the results from our algorithm with results obtained using special functions.

Context: Pediatric cancer treatment may imply an increased risk of hypogonadism, leading to metabolic disorders and osteoporosis. Such complications are potentially preventable. Objective: The aim of this study was to assess diagnosis- and treatment-dependent risk of hypogonadism in male childhood cancer survivors (CCS). Design: Male CCS who were treated during the period 1970-2002 and who in 2004

Despite rapid development, modern graphics hardware is still much too slow to render photo-realistic images in real time, and it will most likely remain so if we rely only on yearly growth in hardware performance. Therefore, better algorithms are constantly needed in order to advance the field. In the first part of this thesis, we present new algorithms for hardware rasterization. We investigate

There are a large number of fire scenarios at nuclear power plants that must be analysed to obtain a picture of the fire risk. This report presents a schematic method that can be useful when identifying areas where deeper analysis is necessary. The methodology is based on four possible scenarios. Accepted and generally used calculations methods are available for three of these scenarios. As for th

Popular Abstract in Swedish Denna avhandling beskriver olika optiska metoder för att diagnostisera cancer.En sådan metod är optisk spektroskopi (att med hjälp av ljus bestämma fysiska och kemiska egenskaper hos ett prov) som har används för att undersöka cancer i ögat. Avhandlingen omfattar vidare studier av optiska kontrastmedel tillverkade av nanokristaller (nano = en miljarddels meter), vilkas This work presents optical methods for diagnosing cancer. A complementary method for diagnosing eye cancer was investigated using a technique developed within this work named transscleral optical spectroscopy (TOS). Furthermore, nano-sized crystals doped with lanthanides were exploited as probes for fluorescence imaging with direct applications to preclinical cancer research. Almost all intraocul

We present a multiuser synchronization scheme for tracking the mobile's uplink time and frequency offsets. It uses the redundancy introduced by the cyclic prefix and does not need additional pilots. We show performance results of an orthogonal frequency division multiplexing (OFDM)-based radio interface based on the universal mobile telecommunication system (UMTS) parameters. For a UMTS-typical mo