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A numerical model has been used to simulate the conditions observed during the ACE-2 Hillcloud experiment and to study the processes which may be taking place. The model incorporates gas phase chemistry of sulphur and nitrogen compounds upstream of the cloud, and the interaction of aerosol, precursor trace gases and oxidants within the cloud. Gas phase and aerosol inputs to the model have been pro
Since 1992 semi-continuous in-situ observations of greenhouse gas concentrations have been performed at the tall tower of Cabauw (4.927 degrees E, 51.971 degrees N, -0.7 ma.s.l.). Through 1992 up to now, the measurement system has been gradually extended and improved in precision, starting with CO2 and CH4 concentrations from 200 ma.g.l. in 1992 to vertical gradients at 4 levels of the gases CO2,
It is now becoming increasingly clear that free radicals contribute to brain damage in several conditions, such as hyperoxia and trauma. It has been more difficult to prove that free radical production mediates ischemic brain damage, but it has often been suggested that it may be a major contributor to reperfusion damage, observed following transient ischemia. Recent results demonstrate that cereb
This thesis contains four independent research papers, which investigate the causal relations between several aspects of health and economic outcomes at different stages of the life course. The first paper investigates the causal effects of maternal deprivation and maltreatment during various periods of childhood on adolescent health and human capital. Using hospital data and information onninth y
Popular Abstract in Swedish Ett kärnkraftverk är utrustat med ett omfattande försvar avsett att förhindra radioaktivt utsläpp vid en eventuell reaktorolycka. Detta försvar är uppbyggt av ett antal skyddsbarriärer, där reaktorinneslutningen utgör den sista barriären mot omgivningen. Inneslutningens primära uppgift är att motstå det inre övertryck som kan förväntas vid en reaktorolycka. Alla svenskaA nuclear power plant is provided with an extensive defense intended to prevent radioactive discharge in case of a reactor accident. This defense is built up of several independent safety barriers, where the reactor containment constitutes the last barrier to the environment. The fundamental safety function of the containment is to withstand the internal pressure expected in the event of an accide
Popular Abstract in Swedish När patienten lämnar sjukhuset och återvänder hem efter en operation för kolorektal cancer (tjocktarm och ändtarm) innebär det en stor omställning. De är inte återställda efter den stora bukoperationen och upplever olika symtom som smärta, tarmbesvär och stor trötthet. Eftersom vårdtiderna blir allt kortare har deras återhämtning bara påbörjats på sjukhuset och de kommeThe overall aim of this thesis is to study the experiences of patients and next of kin with regard to information and information needs after being discharged after colorectal cancer surgery. The aim was also to study factors related to this. Different methods were combined in this explorative study in order to obtain diverse types of data. Patients who had undergone surgery for colorectal cancer
Popular Abstract in Swedish Stroke, eller slaganfall, är en sammanfattande benämning på sjukdomar som drabbar blodförsörjningen i hjärnan. Varje år insjuknar cirka 30000 personer i Sverige i stroke, av dessa drabbas cirka 15% av blödningar medan resterande 85% får infarkter, dvs blodpropp i hjärnan. Stroke upptar fler vårddagar i slutenvården än någon annan somatisk sjukdom. Medianåldern för insjuBackground Stroke is a serious vascular disorder that comprises intracerebral hemorrhages, subarachnoid hemorrhages and ischemic stroke (IS). The etiology of stroke, including hereditary components induced by cellular mechanisms, is therefore a research field of vital importance. The aim of this thesis was to assess possible genetic impact on stroke risk. We thus evaluated family history of strok
I denna uppsats presenteras beskattningen av bostadsrätter och ägarlägenheter. Dessutom undersöks huruvida beskattningen kan sägas vara neutral mellan de båda boendeformerna. Beskattningen av bostadsrätter sker på både individ- och föreningsnivå. Den skiljer sig åt beroende på hur bostadsrättsföreningen klassificeras skatterättsligt. Det kan antingen vara tal om ett s.k. äkta privatbostadsföretag
Projects in the space domain are extremely complex and often characterized as being “one-off”, which makes it very difficult to make good predictions on future developments. Furthermore, space projects are also associated with state-of-the-art technology, high costs and long development time. Risks are therefore a threat to project success because they may have negative effects on the project cost
Orwak is a company that has manufactured machines for waste compaction, mainly cardboard and soft plastic, for over 30 years. They offer the customer a complete compression solution which improves the efficiency and the total economy. In 2006, Orwak introduced a new marketing concept called “Less is More” to improve their sales. In this concept, Orwak has identified and presented ten important fac
Motivationen med studien var den alldeles för höga stråldosen som används vid CTundersökningar. I de allra flesta fallen anpassas man inte rörströmmen efter patientens storlek och därmed får smalare patienter en onödigt hög stråldos. Målet var att reducera stråldosen till patienter som undersöks med datortomografi utan att minska på bildkvalité, genom att anpassa rörströmmen efter patientens stoIn this study we have investigated the possibilities of dose reduction in CT at a constant level of image quality by adjustment of the tube current to the phantom size. The motivation with the study is the high radiation doses to the patients and the increasing frequency of CT examinations and the variety of examinations in CT, and that the same tube current is used for different patient sizes. Ac
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 Haemophilia A (HA) is caused by defective synthesis of coagulation factor VIII(FVIII), which has serious effects on haemostasis; joints being the most common site of bleeding. The development of FVIII replacements has improved the situation for patients with haemophilia such that chronic arthropathy can be prevented, and life expectancy and the quality of life have increased. However, approximatel
Contributions of changes in soil moisture to the projected climate change in the tropics at the end of the twenty first century are quantified using the simulations from five different global climate models, which contributed to the GLACE–CMIP5 experiment. “GLACE” refers to the Global Land Atmosphere Coupling Experiment and “CMIP5” to the fifth phase of the Coupled Model Intercomparison Project. T
Background: Body weight and body mass index (BMI) are positively related to risk of colon cancer in men, whereas weak or no associations exist in women. This discrepancy may be related to differences in fat distribution between sexes or to the use of hormone replacement therapy (HRT) in women. Methods: We used multivariable adjusted Cox proportional hazards models to examine the association betwee
This study aimed to find out how the insulation of the footwear changes over one week of use. A thermal foot model with 8 measuring zones and 5 “sweat glands” was used for tests. A thin sock was donned on the model to allow better water distribution all over the foot surface. Four boots were tested over a period of 5 days. Each day was divided into 9 hour measurement period and 15 hour conditionin
The Swedish government has specified a goal for the Swedish wind power that in 2020 it will generate 30 TWh of energy per year. This should be compared with the present energy produced from wind power of 2.5 TWh / year. To meet these goals, several thousand new wind turbines have to be built. Today, we build the most land-based wind turbines on strong and stiff soils, but probably in the future
Popular Abstract in Swedish Bakgrund Den kroniska ögonsjukdomen grön starr (glaukom) skadar ögats synnerv och påverkar den perifera synen (synfältet) hos de som drabbas. I västvärlden är grön starr den näst vanligaste orsaken till blindhet enligt Världshälsoorganisationen WHO. I Sverige räknar man med att cirka 70 000 personer över 70 år har grön starr, men att endast hälften av dessa är kända föThis thesis addresses several aspects of glaucoma diagnostics from both a clinical and a screening perspective. New instruments for diagnosing glaucoma have been developed over the past years, but little information is available regarding their performance as screening methods and their usefulness in ordinary clinical practice. Purpose of the research underlying this thesis The objectives of th
This dissertation deals with the morphological development in written L2 French by Swedish learners. The thesis presents a detailed analysis of number marking and agreement in NPs and VPs, focusing mainly on the production of the morphemes –s (in NP) and the third person plural –nt (in VP). These agreements are particularly interesting in French where number morphology is often silent in the oral
Objective To derive simple and clinically useful ultrasound-based rules for discriminating between benign and malignant adnexal masses. Methods In a multicenter study involving nine centers consecutive patients with persistent adnexal tumors underwent transvaginal gray-scale and Doppler ultrasound examination using a standardized examination technique and standardized terms and definitions. Inform
Cellular Neural Networks are characterized by simplicity of operation. The network consists of a large number of nonlinear processing units; called cells; that are equally spread in the space. Each cell has a simple function (sequence of multiply-add followed by a single discrimination) that takes an element of a topographic map and then interacts with all cells within a specified sphere of intere
