Filtyp
The phenomenon of overtourism encapsulates the spirit of contemporary mass tourism. It has gained attention lately as an unsustainable consequence of the intensification of destination management principles in urban economic planning strategy. Stories about “the invasion” of visitors into a numberof popular European cities frequently circulate in news and social media. Research has begun to examin
Alzheimer’s disease is an aging related disorder of the mind, accountable for 60-80 percent of all cases of dementia. With its insidious progression and the decline of cognitive abilities, this disease is a major challenge for our society as a whole. This is because of the growing proportion of people living to advanced age and our current lack of capacity to prevent or even give effective symptom
Interactions between metals and natural organic matter (NOM) are of great environmental importance and one of the key factors influencing hydrolysis, solubility, and speciation of the metals. However, studying geochemically relevant metals like Al, Fe, and Cu is sometimes associated with analytical problems; for example Fe and Cu are both redox active. Gallium (Ga) is a non-redox active metal that
The research area of climate field reconstructions has developed strongly during the past 20 years, motivated by the need to understand the complex dynamics of the earth system in a changing climate. Climate field reconstructions aim to build a consistent gridded climate reconstruction of different variables, often from a range of climate proxies, using either statistical tools or a climate model
Background: Intravesical instillation of bacillus Calmette-Guérin (BCG) is an accepted strategy to prevent recurrence of non–muscle-invasive bladder cancer (NMIBC) but associated with significant toxicity. Objective: NIMBUS assessed whether a reduced number of standard-dose BCG instillations are noninferior to the standard number and dose in patients with high-grade NMIBC. Design, setting, and par
Background: Cardiovascular autonomic dysfunction is a multifactorial disorder manifested as orthostatic hypotension (OH) and postural orthostatic tachycardia syndrome (POTS). OH has been associated with an increased risk of cardiovascular disease (CVD), and the underlying mechanisms are not fully understood and explored.Aims and methods: Project I: We aimed to discover protein biomarkers related t
Deoxygenation, i.e. loss of oxygen from the oceans, often considerably influences the aquatic organisms and the wholeecosystem and changes biogeochemical cycles. It results in increasing bottom areas of hypoxia (<2 mg/l dissolved oxygen),which has been primarily attributed to global warming and increased eutrophication. It is vital to study the present-dayanthropogenically-induced environmental ch
In this work conformational studies have been performed on peptides from four different systems in an attempt to gain knowledge about their biological function. Circular dichroism (CD) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy in combination with distance geometry and restrained molecular dynamics simulations were the methods used. A detailed conformational study of a cyclic p
Popular Abstract in Swedish Med hackspettsögon: att förstå habitatval, revirkvalitet och reproduktionsbeslut utifrån individers beteende Min doktorsavhandling bygger både på teoretiska modeller och på fältstudier av mindre hackspett (Dendrocopos minor). För att slippa språkliga krumbukter eller tvetydigheter kommer jag hädanefter att kalla arten "småspett" i denna sammanfattning. Fältstudierna gjIn this thesis I present some connections between foraging behaviour and reproductive success, time budget, tree species use, and habitat selection. The thesis is based upon both theoretical and empirical work. All empirical studies concern a south Swedish population of lesser spotted woodpeckers Dendrocopos minor, studied between 1990 and 1996. The foraging behaviour of the lesser spotted woodpe
Popular Abstract in Swedish Hemofili A är en form av blödarsjuka som beror på en medfödd defekt av äggviteämnet faktor VIII (FVIII). FVIII spelar en viktig roll för att kroppens blodlevringsförmåga (s.k. koagulation) ska fungera optimalt och med nedsatt funktion hos FVIII riskerar man att drabbas av allvarliga blödningar i framför allt leder, men även i muskler, slemhinnor (t.ex. näsblödning) och
Vehicle design is characterized by a high number of compromises. The special role of human factors in the process is to ensure that the compromises do not occur at the expense of the driver and passengers. Within the automotive industry there is a need for the development of inexpensive and efficient ergonomic tools, facilitating a fast and cost effective car development process as well as discuss
Recent investigations of the DNA interactions with cationic surfactants and catanionic Mixtures are reviewed. Several techniques have been used such as fluorescence microscopy, dynamic light scattering, electron microscopy, and Monte Carlo simulations. The conformational behaviour of large DNA molecules in the presence of cationic surfactant was followed by fluorescence microscopy and also by dyna
Glucose-evoked insulin secretion exhibits two phases: The first phase represents exocytosis of insulin granules situated at the plasma membrane, whereas the second phase reflects insulin release from granules continuously recruited to the plasma membrane. This thesis investigates different aspects of phasic insulin secretion, with the specific aims to elucidate the possible contribution of insulin
The Proton Exchange Membrane (PEM) fuel cell has been investigated for a long time, and is regarded as a new energy source for various applications, such as portable, stationary and automotive ones. However, due to the shortage of the infrastructure in the society, the high cost, the difficulty of the water/thermal management, etc., practical systems have not reached the general public, yet. Of t
Background Endometrial adenocarcinoma (womb cancer) is a malignant growth of the lining (endometrium) of the womb (uterus). It is distinct from sarcomas (tumours of the uterine muscle). Survival depends the risk of microscopic metastases after surgery. Adjuvant (postoperative) chemotherapy improves survival from some other adenocarcinomas, and there is evidence that endometrial cancer is sensitive
Popular Abstract in Swedish Mer än hälften av alla kvinnor har haft en urinvägsinfektion. Infektionen uppkommer när bakterier når urinblåsan och börjar växa. Immunförsvaret känner igen bakterierna, reagerar med en inflammation och symptom som sveda, trängningar och smärtor i nedre magtrakten uppstår. Om bakterierna klättrar upp till njurarna sprider sig inflammationen dit och orsakar ryggsmärtor o
This thesis focuses on cognitive impairment in Out-of-Hospital Cardiac Arrest (OHCA) survivors with the main aim to evaluate possible effects by targeted temperature management. Secondary aims are to describe the prevalence of cognitive impairment in a large group of OHCA-survivors, the related symptoms of psychological distress and the actual effect of cognitive impairment for the patient’s abili
Popular Abstract in Swedish Hjärt-kärlsjukdom är en av västvärldens stora folksjukdomar. I Sverige drabbas årligen cirka 10 000 personer av plötsligt hjärtstopp. Den vanligaste orsaken är att en akut hjärtinfarkt orsakar ett ”elektriskt kaos” i hjärtat. Vid ett hjärtstopp upphör blodförsörjningen till hjärnan, vilket leder till medvetslöshet inom några sekunder och inom några få minuter börjar hjäThis thesis focuses on the prognostic value of electroencephalography(EEG) in comatose patients resuscitated after cardiac arrest (CA), using both simplified continuous EEG monitoring (cEEG) and routine EEG. Background: Comatose survivors are admitted to an intensive care unit (ICU) to support vital functions. Postresuscitation care includes target temperature management (TTM) for 24 hours. The d
