Sökresultat

This paper presents a case study of decision-making at the design stage of a socio-technical system where resilience at the global level of the system was constrained by the local perspectives adopted by the different stakeholders. The study is based on interviews with key decision-makers involved in the design stage of six railway tunnel projects in Sweden. The results show that differences in ro

BACKGROUND: Spousal caregivers of cancer patients suffer psychological and physical burdens, which may affect their risk of subsequently developing coronary heart disease (CHD) and stroke. METHODS AND RESULTS: Cancer patients were identified in the Swedish Cancer Registry, and information on their spouses was retrieved from the Swedish Multi-Generation Register. Follow-up of caregivers was carri

The role of quantitative risk analysis as a foundation for decision making, regarding hazardous activities and establishments, has gained increased importance during the last decades. When performing a quantitative risk analysis, a wide range of uncertainties will inevitably be introduced during the process. The impact of these uncertainties must somehow be addressed if the analysis is to serve as

This report presents the research concerned with vulnerability analysis of technical infrastructure networks conducted in the research framework programme called FRIVA. The report reviews how network analysis has been used to analyse the vulnerability of systems that are possible to model as networks, such as technical infrastructure systems. In addition, it proposes how these methods can be devel

The fundamental problems related to uncertainty in quantitative risk analyses, used in decision making in safety-related issues (for instance, in land use planning and licensing procedures for hazardous establishments and activities) are presented and discussed, together with the different types of uncertainty that are introduced in the various stages of an analysis. A survey of methods for the pr

Öresund is one of the areas in the world with most ship movements. More than 40,000 ships pass through the sound in the direction north-south or the opposite every year. Other ships/ferries frequently cross the sound in the direction east-west or west-east. The ships carry goods and/or passengers in huge volumes. Since Öresund is a quite narrow sound with a difficult navigation situation, many ris

The present thesis concerns methods and knowledge that are useful when analysing the risks and vulnerabilities of complex systems in a societal emergency management context. Operational definitions of vulnerability and emergency response capabilities are suggested and two methods for analysing the vulnerability of critical infrastructure networks, based on the suggested definition, are presented.

An operational definition of vulnerability is proposed. The definition is used to describe and analyse different methods for risk and vulnerability analysis. Several problems related to analysing the vulnerability of a complex sociotechnical system to a specific perturbation are identified and discussed. Suggestions of how risk- and vulnerability analyses can be performed for such systems are pres

High body mass index (BMI) and low physical fitness are risk factors for hypertension, but their interactive effects are unknown. Elucidation of interactions between these modifiable risk factors may help inform more effective interventions in susceptible subgroups.

Osteoporosis is common in the elderly, and it is associated with lifetime exposure to endogenous hormones and vitamin D intake, both of which are associated with cancer development. The association of osteoporosis with subsequent cancer has not been established, and hence we examined here the overall and site-specific cancer risks among Swedish individuals after hospitalization for osteoporosis. P

Aims This nationwide study aimed to determine whether venous thromboembolism (VTE) shares familial susceptibility with coronary heart disease (CHD). Methods and results Data from the Swedish Multigeneration Register for subjects aged 0-76 years old for the period 1964-2008 were linked to the Hospital Discharge Register and Cause of Death Register. Familial risks of VTE and CHD were examined in two

We aimed to estimate stratified absolute (cumulative) and relative (standardized incidence ratios; SIRs) risks of non-Hodgkin lymphoma (NHL) in relatives of NHL patients. A cohort of 169 830 first-degree relatives of 45 406 NHL patients who were diagnosed between 1955 and 2010 in five European countries was followed for cancer incidence. The lifetime (0-79 year) cumulative risk of NHL in siblings

BACKGROUND: Stroke is common in cancer patients, but risk estimates for different cancer sites/types have not been determined. The aim of this nationwide study was to examine whether there is an association between cancer and first hospitalisation for haemorrhagic or ischaemic stroke. METHODS: All 820,491 individuals in Sweden with a diagnosis of cancer between 1st January 1987 and 31st December 2

This article presents a protocol for assessing team performance in terms of control based on cognitive systems engineering theory. The protocol changes the focus of team performance assessment from good and bad behaviours towards team activity. By using Hollnagel’s contextual control model (COCOM), a protocol is developed so that team activity can be described as four control modes. Data is collec