This thesis deals with estimation and classification problems of non-stationary processes in a few special cases.In paper A and paper D we make strong assumptions about the observed signal, where a specific model is assumed and the parameters of the model are estimated.In Paper B, Paper C, and Paper E more general assumptions about the structure of the observed processes are made, and the methods

Considerable evidence suggests a close relationship between vascular and degenerative pathology in the human hippocampus. Due to the intrinsic fragility of its vascular network, the hippocampus appears less able to cope with hypoperfusion and anoxia than other cortical areas. Although hippocampal blood supply is generally provided by the collateral branches of the posterior cerebral artery (PCA) a

Introduction: We examined the association between cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease, neural novelty responses, and brain volume in predementia old age.Methods: We conducted a cross-sectional analysis of the observational, multicentric DZNE-Longitudinal Cognitive Impairment and Dementia Study (DELCODE) study. Seventy-six participants completed task functional magnetic reso

Circadian clocks are biological timekeepers that allow living cells to time their activity in anticipation of predictable environmental changes. Detailed understanding of the circadian network of higher plants, such as Arabidopsis thaliana, is hampered by the high number of partially redundant genes. However, the picoeukaryotic alga Ostreococcus tauri, which was recently shown to possess a small n

Circadian rhythms are ubiquitous in eukaryotes, and coordinate numerous aspects of behaviour, physiology and metabolism, from sleep/wake cycles in mammals to growth and photosynthesis in plants. This daily timekeeping is thought to be driven by transcriptionaltranslational feedback loops, whereby rhythmic expression of clock- gene products regulates the expression of associated genes in approximat

The 24-hour rhythms of the circadian clock [1] allow an organism to anticipate daily environmental cycles, giving it a competitive advantage [2, 3]. Although clock components show little protein sequence homology across phyla, multiple feedback loops and light inputs are universal features of clock networks [4, 5]. Why have circadian systems evolved such a complex structure? All biological clocks

INTRODUCTION: Visually impaired patients may experience visual hallucinations due to the Charles Bonnet syndrome (CBS). While benign in nature, these hallucinations may cause distress in those unfamiliar with the phenomenon. The overall purpose of this study was to determine the degree of awareness of CBS in patients referred to our retina clinic.MATERIAL AND METHODS: Consenting patients attending

A 79-year-old female had vision loss due to wet age-related macular degeneration, corneal endothelial dystrophy with corneal oedema and cataract. She subsequently began hallucinating and saw imaginary vehicles, bridges, trees and houses on the road while driving (Charles Bonnet syndrome (CBS)). The hallucinations caused anxiety and distress. Her general practitioner started anti-anxiety therapy wi

Charles Bonnet syndrome is characterized by vivid, complex and recurrent visual hallucinations occurring in psychologically normal people. Though not related to any specific eye condition, it commonly affects visually impaired elderly persons and is thus an important differential diagnosis to many conditions which cause visual hallucinations. Patients usually retain insight into the unreal nature

PURPOSE: To investigate the prevalence and clinical characteristics of the Charles Bonnet Syndrome (CBS) in a group of Danish patients with neovascular age-related macular degeneration (AMD) and to study whether CBS is associated with a specific retinal morphology.METHODS: Three-hundred consecutive patients with neovascular AMD attending assessment consultations following variable series of ranibi

A 67-year-old female presented with post-ganglionic Horner's syndrome. In addition to the classical symptoms of Horner's syndrome, the patient reported experiencing frightening complex visual and auditory hallucinations on two different occasions. Magnetic resonance angiography of the cerebrum, neck and upper thorax revealed internal carotid dissection. The symptoms and hallucinatory experiences r

The international development community is transitioning from the era of the Millennium Development Goals (MDGs), ending in 2015, to the era of the Sustainable Development Goals (SDGs), which have a 2030 target. Global development assistance for health (DAH) increased substantially in the MDGs era, from US $10.8 billion in 2001 to $28.1 billion by 2012 (in 2010 US dollars), and it played a crucial

Background: In the past decade the sector-wide approach (SWAp) model has been promoted by donors and adopted by governments in several countries. The purpose of this study is to look at how partners involved in the health SWAp in Bangladesh define ownership and coordination, in their daily work and to analyse the possible implications of these definitions. Methodology: The study object was a proce