Sökning: "Martin White"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Martin White.

1. 1. The matter of white matter in Alzheimer's disease. -On white matter disease from neuropathology and neuroimaging to clinical presentation

   Författare :Martin Sjöbeck; Lund Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; patologisk anatomi; Patologi allmän ; pathological anatomy; General pathology; medicinsk instrumentering; tomografi; radiologi; Klinisk fysiologi; medical instrumentation; tomography; radiology; executive dysfunction; Clinical physics; magnetic resonance imaging; diffusion tensor imaging; neuropathology; microvascular pathology; astrocytes; myelin; oligodendrocytes; white matter disease; Alzheimer s disease; neuropsychology; neuropsykologi; Neurologi; neurophysiology; neurofysiologi; Psychiatry; clinical psychology; psychosomatics; Psykiatri; klinisk psykologi; psykosomatik; Neurology;

   Sammanfattning : Alzheimer's disease (AD) is the most prevalent type of dementing disorder. The cortical pathology of AD has been recognized for almost a century. In later years, an associated pathological feature of AD has been identified which affects the white matter. LÄS MER

3. 2. The Human Y chromosome and its role in the developing male nervous system

   Författare :Martin M. Johansson; David Skuse; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MSY; sex differences; CNV; SNP; palindrome; palindromes; gr gr duplication; gr gr deletion; b2 b3 deletion; b2 b3 duplication; blue-grey duplication; blue-grey like duplication; IR2; U3; STS; AZFa; AZFb; AZFc; Olivary nucleus; Medulla oblongata; spinal cord; white matter; Affymetrix 6.0; embryo; embryonal; haplogroup; haplogroups; R1a; R1b; R-M207; E-M96; I-M170; J-M304; G-M201; Ashkenazi; Bolivian; Chinese; SNP array; padlock probing; AMY-tree; Biologi med inriktning mot zoologisk utvecklingsbiologi; Biology with specialization in Animal Development;

   Sammanfattning : Recent research demonstrated that besides a role in sex determination and male fertility, the Y chromosome is involved in additional functions including prostate cancer, sex-specific effects on the brain and behaviour, graft-versus-host disease, nociception, aggression and autoimmune diseases. The results presented in this thesis include an analysis of sex-biased genes encoded on the X and Y chromosomes of rodents. LÄS MER

4. 3. Degradation of railway rails from a materials point of view

   Författare :Martin Schilke; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Anisotropy; White etching layer; Rail grade; Rolling contact fatigue; Three dimensions; Plastically deformed layer; Railway Rail; Crack;

   Sammanfattning : From time to time railway rails need to be replaced. In that case and when new track is built, a decision has to be made about which rail grade that is going to be installed. The intention of this work was to compare different rail steels concerning their suitability from a mechanical durability perspective. LÄS MER

5. 4. Räkna med den ekonomiska brottsligheten : Om det kvantitativa studiet av ekonomisk brottslighet

   Författare :Martin Bergqvist; Hanns von Hofer; Paul Larsson; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; economic crime; white collar crime; consumer victimization; consumer detriment; consumer fraud; methodology; statistics; count; measure; Criminology; Kriminologi; kriminologi; Criminology;

   Sammanfattning : Since the 1970´s economic crime has been a debated issue in Sweden. Lack of reliable statistical information has been put forth as a serious problem in this debate. The aim of this thesis is to examine the possibilities of improving quantitative knowledge regarding the prevalence and structure of economic crime in Sweden. LÄS MER

7. 5. Investigations of neural attractor dynamics in human visual awareness

   Författare :David N. Silverstein; Pawel Herman; Martin Ingvar; Karl Friston; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; attractor dynamics; visual awareness; visual perception; visual attention; attentional blink; backward masking; gliomas; brain tumor; white matter; cell assemblies; neocortical model; threat response; fear signaling; amygdala; Biological Physics; Biologisk fysik; Computer Science; Datalogi; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Sammanfattning : What we see, how we see it and what emotions may arise from stimuli has long been studied by philosophers, psychologists, medical doctors and neuroscientists. This thesis work investigates a particular view on the possible dynamics, utilizing computational models of spiking neural attractor networks. LÄS MER