Sökning: "Jan Linder"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Jan Linder.

  1. 1. The biology of cognitive decline and reduced survival in Parkinson disease : prognostic factors in a population-based cohort

    Författare :David C Bäckström; Lars Forsgren; Jan Linder; Niklas Lenfeldt; Jan Aasly; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Parkinson disease; multiple system atrophy; progressive supranuclear palsy; natural history; cognitive impairment; dementia; predictors of mortality; cerebrospinal fluid biomarkers; prospective; population-based; Neurology; neurologi;

    Sammanfattning : Parkinson disease (PD) is a progressive neurodegenerative disease that affects about 1% of the population over 60 years. The cardinal symptoms are motor disabilities but cognitive decline is also common. About 50% of all persons with PD develop dementia within 10 years after disease onset. LÄS MER

  2. 2. Autonomic nervous influence on cerebral and ocular blood flow

    Författare :Jan Linder; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  3. 3. Corrosion Fatigue of Stainless Steels

    Författare :Jan Linder; KTH; []
    Nyckelord :Stainless steel; corrosion fatigue; crack propagation; spot weld;

    Sammanfattning : The aim of this work was to investigate the effect ofchloride-containing environments on corrosion fatigueproperties for different stainless steels grades. The steelsinvestigated ranged from the standard 304 grade to thesuperaustenitic 654SMO and the superduplex SAF2507. LÄS MER

  4. 4. Fatigue strength of engineering materials : the influence of environment and porosity

    Författare :Jan Linder; Bengt Lindberg; Lennart Josefsson; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stainless steel; cast aluminium; hardened steels; fatigue; corrosion; crack propagation; spot weld; porosity; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning : The objective of this work was to use LEFM in order to assess the detrimental influence of surrounding chloride-containing environments for stainless steels, hardened steel as well as for a cast aluminium alloy. An additional aim was also to use LEFM to assess the influence of porosity on the fatigue properties for different commercial cast aluminium alloys and manufacturing methods. LÄS MER

  5. 5. Idiopathic parkinsonism : epidemiology and clinical characteristics of a population-based incidence cohort

    Författare :Jan Linder; Lars Forsgren; Ole-Bjørn Tysnes; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Parkinsonism; Parkinson s disease; Multiple system atrophy; Progressive supranuclear palsy; Incidence; Magnetic resonance tomography; Electromyography; Oculomotor;

    Sammanfattning : Background: Idiopathic parkinsonism is a neurodegenerative syndrome of unknown cause and includes Parkinson’s disease (PD) and atypical parkinsonian disorders. The atypical parkinsonian disorders are: Multiple system atrophy (MSA), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). LÄS MER