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System cost reductions and development of standardised plug-and-function systems are some of the most important goals for solar heating technology development. Retrofitting hot water boilers in single-family houses when installing solar collectors has the potential to significantly reduce both material and installation costs. In this study, the TRNSYS simulation models of the retrofitting solar th

Based on an extensive cohort study over 25 years, the present study supports the assumption that major osteoporotic fractures can be reasonably predicted from hip fracture rates. The construct for FRAX models depends on algorithms to adjust for double counting of fracture outcomes in some models and in others, to estimate the incidence of a major fracture from hip fracture rates. The aim of the pr

Cyanobacteria living epiphytically on mosses in pristine, unpolluted areas fix substantial amounts of atmospheric nitrogen (N) and therefore represent a primary source of N in N-limited boreal forests. However, the fate of this N is unclear, in particular, how the fixed N-2 enters the soil and becomes available to the ecosystem. In this study, we applied N-15-ammonium chloride (N-15-NH4Cl) onto ca

Following myocardial infarction (MI), patients often have unanswered questions about resuming sexual activity. Coronary care nurses can play an important role in counselling. However, this sensitive area is frequently neglected in nursing practice. This article discusses patient and nurse perceptions of such discussions and explores ways to increase nurses' awareness, so that they might offer sexu

The incidence of asthma and allergy has increased throughout the developed world over the past decades. During the same period of time, the use of industrial chemicals such as phthalates, commonly used as plasticizers in polyvinylchloride (PVC) flooring material, has increased. The aim of this study was to investigate whether PVC flooring in the home of children in the age of 1-5years is associate

The overall aim of this thesis was to develop and evaluate a specific instrument, measuring both mothers’ and fathers’ postnatal sense of security during the first postnatal week, and to explore and describe important factors associated with this. Data was collected from 2003 to 2009. The thesis has a methodological (Paper I), an evaluative (Paper II) and an explorative and descriptive design (P

Differential heating of surface waters of lakes caused by shading from vegetation can induce convection, which could be significant for the ecosystem because the chemistry and biology can differ in the reed belt zone compared to the open lake. This process has been given little attention in the literature. In the present study surface currents just outside a reed belt as well as radiation and wate

A sizable fraction of testicular germ cell tumour (TGCT) risk is expected to be explained by heritable factors. Recent genome-wide association studies (GWAS) have successfully identified a number of common SNPs associated with TGCT. It is however, unclear how much common variation there is left to be accounted for by other, yet to be identified, common SNPs and what contribution common genetic var

Vehicle-to-vehicle (VTV) wireless communications have many envisioned applications in traffic safety and congestion avoidance, but the development of suitable communications systems and standards requires accurate models for the VTV propagation channel. In this paper, we present a new wideband multiple-input-multiple-output (MIMO) model for VTV channels based on extensive MIMO channel measurements

Building owners are encouraged to reduce energy use in order to both contribute to national energy-saving goals and reduce the costs of heating and operation. It is important to choose the most optimal renovation measures available so as to achieve cost-effective energy use while maintaining excellent indoor environments, without sacrificing architectural quality or negatively affecting the enviro

Denna uppsats syftar till att rikta uppmärksamhet mot svensk reglering av genitala ingrepp på minderåriga, mer specifikt lagen (2001:499) om omskärelse av pojkar och lagen (1982:316) med förbud mot könsstympning av kvinnor. Som framgår redan här finns två olika regleringar att tillämpa, beroende på vilket fysiskt könsorgan ingreppet riktas mot. I uppsatsen granskas dessa två regleringar. Fokus är

This article aims to undertake a comprehensive cost-benefit analysis of SSAB's investment in green steel production under the HYBRIT initiative, focusing on the implications of operating within the EU Emission Trade System and an illustrative scenario employing a carbon tax. The study evaluates profitability and social benefits, utilizing time series models to forecast electricity prices in di

För närvarande står byggnadsindustrin för en betydande del av de totala utsläppen av växthusgaser i Sverige. Resurseffektiviteten är låg och de råmaterial som används i dagsläget utnyttjas inte på ett effektivt sätt. Det råder ingen tvekan om att konsumtionen av naturresurser är ett problem, något som kan förbättras genom exempelvis en ökad grad av återanvändning i materialflödet och genom att vid