Search results

Filter

Filetype

Your search for "*" yielded 533820 hits

Cerebral Blood Flow and Cognition. Clinical studies on Dementia and Cognitive Decline.

Popular Abstract in Swedish Kognitiv funktion är ett samlingsbegrepp för minne och högre tankeprocceser. Nedgången i dessa verbala, logiskt-induktiva, spatiala och minnes funktioner ses både vid normalt åldrandet och sekundärt till demens, stroke och åldersrelaterad minnesstörning. Förändringar i dessa funktioner kan vara ett tidigt tecken på vaskulärt (kärl-relaterad) betingad sjukdom eller degenThe importance of early detection of brain changes during ageing has been recognised. Single photon emission computed tomography (SPECT) is a method used for estimation of cerebral blood flow (CBF) in clinical work and in research. The aim of thesis was to study CBF in demented and non-demented elderly persons with special reference to blood pressure changes. Elderly women with senile dementia of

Stress-related peptides in suicide attempters

Popular Abstract in Swedish Det är välkänt att patienter som har gjort ett suicidförsök löper en ökad risk att i framtiden ta sitt liv. I de flesta fall görs suicidförsök av individer som på något sätt är utsatta för stress. Stress kan orsakas av en psykisk eller fysisk sjukdom. Psykosociala faktorer, såsom en skilsmässa eller en annan ohållbar situation i hemmet eller på arbetet, kan också förorsA suicide attempt is the best known predictor of completed suicide. It has long been assumed that most suicide attempts are the results of stress. The aim of this thesis was to examine some stress related peptides and their relations to the hypothalamic pituitary adrenal (HPA) axis, diagnoses and temperament in a heterogeneous group of suicide attempters shortly after a suicide attempt and at foll

Policy Options for Air Pollution Prevention and Control in South Asia

This case book has been compiled within the framework of Phase III of the programme on Regional Air Pollution in Developing Countries (RAPIDC) funded by the Swedish International Development Cooperation Agency (Sida) and coordinated by the Stockholm Environmental Institute (SEI). This work has been produced by the International Institute of Industrial Environmental Economics (IIIEE) at Lund Univer

Surface Modification of Biomedical Polyurethanes

Popular Abstract in Swedish Ser man bakåt i historien har människan alltid försökt reparera eller ersätta vävnader i kroppen vid skador. En av de äldsta rapporterna om användande av biomaterial är runt 4000 år gammalt. I detta fall användes linnefibrer som suturmaterial. Från början användes naturliga material som collagen, silke, hår, bomull och olika cellulosamaterial. Under senare hälften av 19The aim of the this thesis was surface modification of a biomedical polyurethane (PUR), Pellethane 2363-80AE*, to improve the biocompatibility. Surfaces modified by poly(ethylene oxide) (PEO) were prepared either by grafting PEO covalently at the PUR surface by a two-step reaction, or by using amphiphilic polymers containing PEO as the hydrophilic part. The amphiphilic polymers consisted of one co

Förord

Preface to the new Swedish translation of Friedrich Engel's The Origin of the Family, Private Property, and the State.

Altered bone composition in children with vertebral fractures

Primary osteoporosis in children often leads to vertebral fractures, but it remains unknown whether these fractures associate with changes in bone composition. This study aimed to determine the differences in bone composition in fracture‐prone children with and without vertebral fractures, as assessed by Fourier transform infrared spectroscopic imaging (FTIRI) and bone histomorphometry. Iliac cres

Static and Dynamic Correlation Effects in Atoms

The thesis considers the effects of electron correlation by studying the two opposite limits of atoms in the ground state and atoms in strong laser pulses. Computational methods and theoretical approaches differ significantly due to the different physical processes that are studied in these two cases. The thesis has an introductory chapter with a brief discussion of the problem of describing elec

Generation and control of light

This chapter describes various kinds of artificial light sources of interest to the photobiologist (natural light is described in separate chapters), starting with incandescent lamps and their properties, and continuing with gas discharge lamps, flashlamps and lasers. After a section on light filters the chapter concludes with a treatment of monochromators, in which the mode of action of a grating

Separating predictive responses from reactive responses in isochronous finger tapping using Bayesian hierarchical modeling

Finger tapping to isochronous pacing stimuli is a well established experimental paradigm first described in the late 19th century. Two variables of common interest in rhythmic tapping tasks are timing variability and constant error. However, a difficulty when estimating these variables is that at interstimulus intervals longer than 2 seconds participants regularly overshoot the target interval and