Filtyp
Stress corrosion cracking occurs due to the synergistic interaction between mechanical load and corrosion reactions. In this study, branching during anodic dissolution driven crack growth is studied using an adaptive FE procedure. The crack has an inherent blunt tip due to the dissolution, and the growth is treated as a moving boundary problem with a strain-assisted evolution law. Simulations are
Systematic studies were performed on the effect of the surfactant alkyl chain length (10-16 carbon atoms) and the head group charge/structure (anionic, cationic, nonionic) on the pasting properties of wheat flour and starch aqueous suspensions by means of a Rapid Visco Analyser (RVA). An excellent agreement was observed between the effect of surfactants on the onset temperature of the pasting proc
Popular Abstract in Swedish Benskörhet (osteoporos), är ett komplext, multifaktoriellt tillstånd som utvecklas i det tysta fram till den dag man drabbas av en fraktur. De senaste 40 åren har antalet benskörhetsfrakturer ökat och i dag beräknas varannan kvinna och var fjärde man någon gång drabbas av en eller flera osteoporosrelaterade frakturer. Exempel på sådana benbrott är frakturer i kota, höftOsteoporosis is a growing problem worldwide where Sweden has one of the highest fragility fracture incidences in the world. The growing years are thought to be an opportune time to build strong bones and the enhancement of peak bone mass (PBM) has been suggested as a prevention strategy for osteoporosis. Most exercise intervention studies in children, evaluating the accrual of areal bone mineral d
Mass-propagation of the spruce bark beetle, Ips typographus, following windfalls and drought is a serious threat to mature spruce forests. Climate change will affect the population dynamics of I. typographus directly as the swarming activity and development rate are mainly controlled by temperature, and indirectly via changes in availability of brood trees. Today, I. typographus is in general univ
The microfiltration (MF) fouling behaviour of -lactoglobulin solutions containing various levels of ionic calcium was investigated on a constant-flux, computer-controlled, cross-flow rig using zirconium oxide membranes. Fouling behaviour was highly dependent on both permeate flux and calcium concentration. At 200 l/(m2 h) on a 50 nm membrane the presence of 8.0 mmol/dm3 (8.0 mM) ionic calcium in t
We give a simpler proof of the formula, due to J.-L. Lions, for the reproducing kernel of the space of harmonic functions on a domain Omegasubset ofR(n) whose boundary values belong to the Sobolev space H-s(partial derivativeOmega), and also obtain generalizations of this formula when instead of harmonic functions one considers functions annihilated by a given elliptic partial differential operato
In this paper, we model the price differentials between A shares and H shares in the Chinese stock markets with both macroeconomic factors and firm specific factors, which successfully explain the A share price premium. Discounts of H-share prices relative to A-share prices are related to the contemporaneous movements of the H-share local market index relative to the A-share local market index, th
The balance-of-payments-constrained growth theory has emerged as perhaps the most interesting objection to the doctrine of unregulated free trade within the field of development economics. It stipulates that growth is constrained by demand, particularly demand for exports because exports are the only source for foreign currency (assuming balanced current account in the long run) and thus crucial t
The thesis evaluates how house price development can indicate risk of mortgage defaults. This leads to conclusions about the capability that the method of the thesis has in predicting mortgage default related crises. The questions asked regard which states in the U.S. had the most volatile house prices, which states had unexpectedly high house prices at the end of 2006, and how house prices are af
The most famous theory of family economics is probably Gary Becker’s Quantity-Quality model. Assuming scarce parental resources, it predicts a negative relationship between family size and adult success. The model assumes that parents have common preferences and that income pooling takes place. However, modern theories of household allocation have shown that the assumption of common preferences is
This study estimates the trade effects of economic sanctions used by the European Union 1990-2000. The EU has used economic sanctions frequently since the early nineties. These sanctions are compiled into a comprehensive list for the period 1990-2000, and classified as limited or extensive. Then, a gravity model is used to estimate how sanctions have affected trade between the EU and target countr
The purpose of this graduate thesis is to discuss the concept of democracy as conceived of by Alf Ross in his book ''Why democracy?, one of the most important works on democracy that appeared in the 20th century. Further, the thesis aims to establish whether or not Ross' views, seen against the background of modern Swedish democracy, might still be of interest in our days. According to
Bladyteindex för skog är ett mått på mängden blad i skogen. Bladyteindexet används i klimatmodeller för att uppskatta viktiga biologiska processer för skogen som fotosyntes, evapotranspiration och kolutbyte med atmosfären. Dessa modeller behöver bladyteindexdata över stora skogsarealer, som rimligtvis inte kan mätas för hand. Man har upptäckt samband mellan satellitdata i form av skogars reflektanGround reflectance of forests has been suggested as a main source weakening the strength of relationships using satellite reflectance to predict forest leaf area index (LAI), a key input variable in models of carbon balance and global circulation. In this project a radiative transfer model was used to simulate the influence of ground reflectance in forest canopy reflectance in twenty forest stands
Background: This study aimed to explore how the physical and social environment of a neighbourhood influenced the physical activity of children from the perspective of children and caregivers. It used a low-income neighbourhood in Beijing as the setting and focused on children in middle childhood. Methods: Guided by the Urban Ecological Model for Environment and Health Behaviour, semi-structured i
In this study, the wide area of cultural integration politics is approached. Departing from a theoretical fusion between constructivist post-colonialism and liberal cosmopolitanism, the study investigates the approach to culture that is found within the integration strategies of multiculturalism and assimilation, repsectively. By employing two stylized ideal-types and applying them to a political
This paper examines the impacts of Eurozone sovereign credit rating announcements by three leading rating agencies on exchange rates from January 1, 2009 to March 31, 2011. Firstly we report the mean and volatility of USD/EUR in response to Eurozone sovereign rating news. Secondly, thanks to the high integration in Europe, we extend our analysis to the movement of USD/SEK in order to see how non-E
This paper models the dynamics of capital structure listed on the NYSE and NASDAQ during 1995 to 2010. The subsamples classified by given leverage level and specified periods of time are tested. The main contribution is that macroeconomic conditions and firm characteristics are incorporated regressed for non-linearity test. We provide the evidence of non-linear patterns among low leverage and high
The thesis is based on a qualitative multiple case study with an abductive approach. It examines the relationship between brand placement and gender roles in films between the 1980s and 2010s, with the main purpose to contribute to the gender and marketing literature on how the portrayal of male and female characters in films has developed, changed and been translated through brand placement withi
