Sökresultat

This paper describes a numerical technique to solve non-linear stochastic differential equations of Ito and Stratonovich type. We consider Euler, fourth-order Runge-Kutta (R-K) Schemes,and other schemes with intermediate accuracy. For the purpose of investigating the Convergence of numerical solutions and to apply variable integration step length techniques the special Wiener process generator was

Venous thromboembolism (VTE) is a relatively common cause of morbidity and mortality. It has an annual incidence of around 0.1- 0.3%. It is a multifactorial disease with many known risk factors, both transient and persistent. Among these, several genetic risk factors have been described. The most common genetic risk factor, factor V Leiden mutation in heterozygote form, is found in 5-8% of the Cau

Background: The role of environmental exposures in the pathogenesis of ankylosing spondylitis (AS) remains unclear. In particular, two types of exposures have been suspected to play a role: mechanical stress and infections. The objective of this case-control study was to determine if childhood infections are associated with later development of AS. Methods: The cases with AS were identified throug

French is characterized by major differences between phonology and orthography. Consequently, learning the deep orthography of written French is a challenge to both first (L1) and second (L2) language learners. This empirical study focuses on the production of silent number morphology in written French and illustrates that a group of L2 learners, exposed to limited amounts of spoken French in a ty

This paper studies the effect of the firm-size distribution on the relationship between employment and output. We construct a theoretical model, which predicts that changes in demand for industry output have larger effects on employment in industries characterised by a distribution that is more skewed towards smaller firms. Industry-specific shape parameters of the firm size distributions are esti

År 1900 blev botanisten Carl Lindman ansvarig för återutgivningen av en hundra år gammal illustrerad flora, J. W. Palmstruchs Svensk botanik (1802–43). De gamla handkolorerade kopparsticken undersöktes noggrant, korrigerades och försågs med nya förstorade detaljer och trycktes sedan med färglitografi. I denna artikel studeras, ur ett bokhistoriskt perspektiv, hur den nya formen påverkar innehållet

STUDY QUESTION: Do serum levels of anti-Müllerian hormone (AMH) change in women of reproductive age following dietary and surgery-induced weight loss?SUMMARY ANSWER: AMH levels increased after very low-calorie diet (VLCD) before surgery and decreased at 6 and 12 months after Roux-en-Y gastric bypass (RYGB), beyond expected normal age-related decline.WHAT IS KNOWN ALREADY: Obesity has negative effe

Background: Gestational diabetes (GDM) is associated with health risks for both mother and child, and is particularly relevant to migrant women and women of African origin. With today's extensive global migration, contact with the new society and health system confronts the migrant's culture of origin with the culture of the host country. The question is whether immigrants' patterns of beliefs abo

In the past couple of decades, major efforts were made to increase reliability of metabolic assessments by magnetic resonance methods. Magnetic resonance spectroscopy (MRS) has been valuable for providing in vivo evidence and investigating biomarkers in neuropsychiatric disorders, namely schizophrenia. Alterations of glutamate and glutamine levels in brains of schizophrenia patients relative to he