Sökning: "magnus nyström"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden magnus nyström.

  1. 1. Coral reefs in a human-dominated environment : implications of altered disturbance regimes and reduced resilience

    Författare :Magnus Nyström; Terry Done; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Korallrev; Ekosystem i vatten; Marine Ecotoxicology; marin ekotoxikologi;

    Sammanfattning : Coral reefs are facing an "Anthropocene " era where humans have advanced from a minor species with limited influence on coral reefs to a major source of disturbance. Disturbance arriving from human influences may not only interact with each other, but also with natural disturbance regimes, leading to synergistic effects. LÄS MER

  3. 2. Plastic Deformation of Duplex Stainless Steel

    Författare :Magnus Nyström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; microstructure; plastic zones; impact toughness; anisotropy; prestraining; annealing; fractography; fatigue;

    Sammanfattning : Duplex austenitic/ferritic stainless steels are increasingly used as an alternative to conventional austenitic grades. Main advantages of the duplex grades are good resistance to corrosion cracking and corrosion fatigue in environments that contain chloride. LÄS MER

  4. 3. Fatigue and Peripheral Muscle Dysfunction: Studies on Vitamin D Status, Muscle Metabolism and Systemic Inflammation in Patients with COPD : Aspects of COPD severity beyond FEV1 and exacerbations

    Författare :Magnus Kentson; Lennart Persson; Jan-Erik Karlsson; Fredrik Nyström; Arne Egesten; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : BackgroundThe severity of Chronic Obstructive Pulmonary Disease (COPD) is usually described in terms of forced expiratory volume in one second (FEV1) and number of exacerbations. However, COPD is a complex disease with different ways of expression, involving pulmonary symptoms, extra pulmonal manifestations and comorbidities, which altogether affect the patient by contributing to reduced functional capacity, increased shortness of breath, reduced health-related quality of life and increased mortality. LÄS MER

  5. 4. Acute, ambulatory and central blood pressure measurements in diabetes

    Författare :Magnus Wijkman; Fredrik Nyström; Carl Johan Östgren; Toste Länne; Jan Östergren; Linköpings universitet; []
    Nyckelord :Ambulatory blood pressure; Arterial stiffness; Central blood pressure; Diabetes; Hypertension.;

    Sammanfattning : Background: In patients with diabetes, high blood pressure is an established risk factor for cardiovascular disease. The aim of this thesis was to explore the associations between blood pressure levels measured with different techniques and during different circumstances, and the degree of cardiovascular organ damage and subsequent prognosis in patients with diabetes. LÄS MER

  7. 5. Haptic and visual simulation of material cutting process : a study focused on bone surgery and the use of simulators for education and training

    Författare :Magnus G. Eriksson; Jan Wikander; Ingela Nyström; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; surgical simulation; virtual reality; haptic feedback; surgical training; medical simulators; metrics; 3D visualization; Medical technology; Medicinsk teknik;

    Sammanfattning : A prototype of a haptic and virtual reality simulator has been developed for simulation of the bone milling and material removal process occurring in several operations, e.g. temporal bone surgery or dental milling. The milling phase of an operation is difficult, safety critical and very time consuming. LÄS MER