Search for dissertations about: "magnetic aging"

Showing result 21 - 25 of 51 swedish dissertations containing the words magnetic aging.

2. 21. The impact of diabetes on cognitive aging and dementia

   Author : Anna Marseglia; Karolinska Institutet; Karolinska Institutet; []
   Keywords : prediabetes;

   Abstract : The impact of prediabetes and diabetes on different stages of cognitive function during aging remains unclear. This thesis aimed to investigate the impact of prediabetes and of diabetes on cognitive aging—from cognitive deficits, through cognitive decline, to dementia—, explore underlying cerebral mechanisms and identify factors that may protect older adults with diabetes from dementia. READ MORE

4. 22. Cardiovascular health and brain aging : a population-based MRI study

   Author : Yuanjing Li; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Deterioration of brain structure and cognitive function occurs as individuals reach advanced age. The former can be observed through various markers of cerebral small vessel disease on magnetic resonance imaging (MRI) scans and the later can be assessed by neuropsychological tests and clinical examinations. READ MORE

5. 23. Phase separation in duplex stainless steel: characterization and mitigation

   Author : Jianling Liu; Peter Hedström; Joakim Odqvist; Wangzhong Mu; Aniruddha Biswas; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; duplex stainless steel; 475 °C embrittlement; phase separation; small-angle neutron scattering; mechanical properties; alloying elements; cooling rate; magnetic field; Materials Science and Engineering; Teknisk materialvetenskap;

   Abstract : Duplex stainless steel (DSS) is a category of widely used stainlesssteel, which are strategically important in a variety of applications such asin the food industry, chemical engineering plants and nuclear power plants,due to their attractive combination of mechanical properties and corrosionresistance. However, these steel grades are sensitive to the so-called ‘475°Cembrittlement’, because of a phase separation (PS) phenomenon in theferrite phase, which decomposes into Fe-rich ferrite (α) and Cr-rich ferrite(α'), when exposed to temperatures within the miscibility gap. READ MORE

6. 24. Brain MRI and CT morphology in healthy aging and Alzheimer's disease

   Author : Yi Zhang; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Alzheimer disease; Brain; Atrophy; Diagnosis; CSF; CT; MRI; vascular risk factors; population-based study;

   Abstract : Background: The brain atrophy in individual Alzheimer's disease (AD) patients includes not only specific atrophy from AD pathology, but also atrophy induced by normal aging and cerebral vascular diseases. Although medial temporal lobe atrophy (MTA) together with CSF biomarkers is suggested to be the most important diagnostic markers for AD, it may not be specific. READ MORE

7. 25. Adverse Muscle Composition : Revisiting Sarcopenia in General Population and Liver Disease using Magnetic Resonance Imaging

   Author : Jennifer Linge; Mattias Ekstedt; Patrik Nasr; Martin Henriksson; Tommy Cederholm; Linköpings universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Abstract : Sarcopenia - from the Greek words 'sarx' (flesh) and 'penia' (loss) - was, when coined in 1989, a term denoting the decline in muscle mass and strength that occurs with aging. Such definition implies everyone suffers from sarcopenia to varying degrees, which naturally makes studying sarcopenia challenging. READ MORE