Understanding ultra-wide-band (UWB) propagation channels is a prerequisite for UWB system design as well as communication-theoretic and information-theoretic investigations. This paper surveys the fundamental properties of UWB channels, pointing out the differences to conventional channels. if the relative bandwidth is large, the propagation processes, and therefore path loss and shadowing, become

The field of tissue engineering has a growing need for suitable scaffold materials to become attractive as a clinical therapy. To use a completely autologous construct to repair a damaged or diseased tissue is an appealing thought. As a model system, two types of scaffolds were prepared from biological fluids: blood and plasma. The prepared scaffolds formed a macroporous structure with elastic mec

Objectives: To find variables associated with outcome following thrombolytic treatment for acute lower limb ischemia. Design: Re-analysis of a prospective multicentre study. Material and methods: One hundred and twenty-one patients with acute lower limb ischemia previously included in a randomised study comparing high- with low-dose thrombolysis were re-analysed ignoring the mode of lytic treatmen

Abstract Historical studies indicate that determinants of the gender wage gap have varied through history. This paper suggests that employment discrimination dominated over wage discrimination in clerical work in Sweden in the mid-1930s. Women were largely excluded from career paths in the offices. This is explained within an analytical framework, in which segmented labour market theory, notably c

The validity of a Swedish translation of the Measures of Criminal Attitudes and Associates (MCAA) was evaluated. All four subscales showed acceptable reliability, but the Entitlement scale can be improved by replacing items with low loadings. Confirmatory factor analysis supported a model with one common criminal attitude factor and three subfactors (corresponding to subscales of the test). The An

Background: At early stages of infection CCR5 is the predominant HIV-1 coreceptor, but in approximately 50% of those infected CXCR4-using viruses emerge with disease progression. This coreceptor switch is correlated with an accelerated progression. However, those that maintain virus exclusively restricted to CCR5 (R5) also develop AIDS. We have previously reported that R5 variants in these "non-sw

Background: We have developed an in vitro model by organ culture of rat mesenteric arteries to imitate vascular smooth muscle cell (VSMC) receptor changes in cardiovascular disease. By using this model, alteration of VSMC thromboxane A(2) (TP) receptors was studied. Methods and Results: After organ culture of the arteries, VSMC TP receptors were studied by using myography, real-time PCR and immuno

Popular Abstract in Italian Con il termine aterosclerosi si usa generalmente definire uno stato di infiammazione cronica che risulta nella riduzione di elasticita´ delle pareti dei vasi arteriori di medio e grande diametro. La lesione caratteristica dell´aterosclerosi e´ l´ateroma, o placca aterosclerotica, ossia un´ispessimento dello strato piu´ interno delle arterie. Le placche cominciano a formCardiovascular (CV) atherosclerotic diseases are the leading cause of death in Western nations. The presence of a carotid plaque, the degree of carotid stenosis as well as the rate of progression of carotid disease has been shown to be independent predictive factors for future ischemic events. The aim of this thesis was to detect clinical, sonographic and serologic patterns that could aid in ident

One option for coping with wasteful uses of fresh water in landscape irrigation is to use the treated greywater(GW). In the present study, an evaluation of a simple treatment system for reusing GW to irrigate green areas,trees, and ornamentals all over the campus in Tafila Technical University (TTU), Jordan, is presented. After 12 months of using the treatment system, the necessity for using fresh

This thesis centers on a well-studied cohort of 100 patients, which received a treatment regimen of initial rehabilitation and activity modification to cope with Anterior Cruciate Ligament (ACL) injury. The data, collected prospectively and longitudinally, cover a span of 15 years after initial injury. The overall aim of this thesis is to describe the course of an ACL injury treated with rehabilit

The diffractive process ep -> eXY, where Y denotes a proton or its low mass excitation with M-Y < 1.6 GeV, is studied with the H1 experiment at HERA. The analysis is restricted to the phase space region of the photon virtuality 3

In this paper, we are concerned with the construction and analysis of high order exponential splitting methods for the time integration of abstract evolution equations which are evolved by analytic semigroups. We derive a new class of splitting methods of orders three to fourteen based on complex coefficients. An optimal convergence analysis is presented for the methods when applied to equations o

This study aims to assess the effect of radiation treatment on the tumour vasculature and its downstream effects on hypoxia and choline metabolism using a multimodal approach in the murine prostate tumour model CWR22. Functional parameters derived from Positron Emission Tomography (PET)/Computer Tomography (CT) with (18)F-Fluoromisonidazole ((18)F-FMISO) and (18)F-Fluorocholine ((18)F-FCH) as well

The complex genetics of cancer, which allows tumours to grow and spread while bypassing the control circuitry of the cell, involves dysregulation of the genome, transcriptome and proteome. The importance of protein-coding genes such as growth factors and hormone receptors is well established. Recently, non-coding RNAs have emerged as important players in tumour development with potential to be exp

Objectives. Using prospectively collected registry data to investigate sick leave (sickness benefit and sickness compensation) over a 7-yr period in patients with AS in comparison with population-based controls matched for age, sex and residential area. Methods. We investigated 122 (21 women and 101 men) outpatients with AS in South Sweden, born 1942 or later, from rheumatology specialist care for

Different designs of flat-tube heat exchangers with plain fins have been evaluated theoretically in a parameter study in order to evaluate their performance potential in indirectly cooled display cabinets. Two different types of flat-tube heat exchangers were considered; one with serpentine fins and one with continuous plate fins. Both flat-tube heat exchanger types were adapted to the laminar flo

The aim of this study is to review recent data on dietary fiber (DF) and the glycemic index (GI), with special focus on studies from the Nordic countries regarding cardiometabolic risk factors, type 2 diabetes, cardiovascular disease, cancer, and total mortality. In this study, recent guidelines and scientific background papers or updates on older reports on DF and GI published between 2000 and 20

Background: Little is known about the causes of thyroid cancer, but insulin-like growth factor-I (IGF-I) might play an important role in its development due to its mitogenic and antiapoptotic properties. Methods: This study prospectively investigated the association between serum IGF-I concentrations and risk of differentiated thyroid carcinoma in a case-control study nested within the European Pr