Filetype
The influence of added colloidal particles on the phase separation of mixed aqueous polymer solutions is investigated. Two types of particles (polystyrene latex or silica) and different combinations of segregating polymers (dextran of varying molar mass combined with poly(ethylene oxide) (PEO) of varying molar mass, or Ucon, a copolymer of ethylene oxide and propylene oxide) were used. All systems
We compute strain distributions in core-shell nanowires of zinc blende structure. We use both continuum elasticity theory and an atomistic model, and consider both finite and infinite wires. The atomistic valence force-field (VFF) model has only few assumptions. But it is less computationally efficient than the finite-element (FE) continuum elasticity model. The generic properties of the strain di
In this work H-1 NMR self-diffusion experiments have been performed to determine the self-diffusion coefficients of n-octyl beta-D-glucoside and n-nonyl beta-D-glucoside in alpha-cyclodextrin and beta-cyclodextrin solutions at 25 degreesC. Two questions are addressed. The first concerns the general influence on nonionic surfactant transport properties when cyclodextrins are present in solution. Th
BACKGROUND: The use of nitrous oxide (N2O) during hemodilution has been questioned. Nitrous oxide reduces the inspired oxygen fraction (F1O2), depresses myocardial function and may reduce cardiac output (CO) and systemic oxygen delivery (DO2SY). The aim of this study was to evaluate the importance of the effects of nitrous oxide on systemic and myocardial circulation and oxygenation during extreme
Properties of polyelectrolyte gels in equilibrium with a reservoir of salt solution described within the primitive model have been investigated using Monte Carlo simulations. The polyelectrolyte gel was modeled as a charged defect-free three-dimensional network of diamondlike topology with explicit simple ions. The deswelling upon addition of salt was investigated for gels with different charge de
A spin-echo single-shot echo-planar imaging (SS-EPI) technique with a reduced field of view (FOV) in the phase-encoding direction is presented that simultaneously reduces susceptibility effects and motion artifacts in diffusion-weighted (DW) imaging (DWI) of the spinal cord at a high field strength (3T). To minimize aliasing, an outer volume suppression (OVS) sequence was implemented. Effective fa
Men with prostate cancer (n=25) were interviewed, focusing on experiences of micturition problems, indwelling catheter treatment and sexual life consequences. Narrations were found to be practical and technical descriptions rather than emotional, and experiences were described with reduction and negligence regarding personal well-being and the impact of problems. Phenomenological-hermeneutic analy
Transistors are used in all digital devices today. The demand of faster and smaller devices such as mobile telephones and computers constantly drives the develop- ment of smaller transistor technologies. Transistors can also be used in analog applications. Today there are commercial chips with both radio and digital sys- tems in the same package. Cellular Internet of Things (IoT) is expected to ma
Kroniska sjukdomar är den största orsaken till funktionsnedsättning och död, och även den största kostnaden för sjukvården. Ett sätt att minska trycket på sjukvården och samtidigt höja livskvalitén för patienter som lider av kroniska sjukdomar, är genom digitalisering av sjukvården. Regeringen har satt ett ambitiöst mål att Sverige ska vara världsledande inom e-hälsa år 2025. För att bidra till deThe leading causes of disability and death worldwide, are chronic diseases. They are also the costliest part of healthcare. One way to ease the pressure on healthcare and improve quality of life for patients suffering from chronic diseases, is by digitising healthcare. The Swedish government has set an ambitious goal of Sweden being the world-leading country in e-health by 2025. To contribute to d
The demand for plastics is growing due to global population, economic growth and insufficient recycling, where new bio-based feedstocks must be investigated to meet future emission goals. 5-Hydroxymethylfurfural (HMF) is a promising platform chemical that can produce Polyethylene furanoate (PEF) with similar characteristics to fossil-based polyethylene terephthalate (PET). The HMF can be produced
The forest contributes multiple services, among others renewable materials, carbon sequestration, and recreational value. This thesis studied the effects on forestry stemming from the revised Land Use, Land Use Change, and Forestry regulation. The question is how reduced logging, which is in line with the new regulation, affects social welfare when incorporating the benefits of ecosystem services.
We applied a hybrid approach to estimate the benchmark dose (BMD) and the lower 95% confidence limit (BMDL) for cadmium-induced bone effects in a population with low environmental exposure. Morning urine samples were collected by 794 Swedish women, aged 53-64 years, participating in a population-based study We measured urinary cadmium (U-Cd), a marker of long-term exposure, and bone mineral densit
Laminar burning velocity of lean hydrogen + air flames at standard conditions is still a debated topic in combustion. The existing burning velocity measurements possess a large spread due to the use of different measurement techniques and data processing approaches. The biggest uncertainty factor in these measurements comes from the necessity to perform extrapolation to the flat flame conditions,
We develop a procedure for exploring the free energy landscape of protein-peptide binding at atomic detail and apply it to PDZ domain-peptide interactions. The procedure involves soft constraints on receptor proteins providing limited chain flexibility, including backbone motions. Peptide chains are left fully flexible and kept in spatial proximity of the protein through periodic boundary conditio
Popular Abstract in English Energy savings and climate change mitigation have been discussed in the world since the oil crisis in the 1970s and the building sector has been seen as one of the largest contributors to global warming effects in the world. Energy efficiency in buildings is a critical issue to be addressed in order to reduce electricity energy used in buildings and is one of the main tMozambique, situated in south-east Africa, has sub-tropical and tropical climate and plenty of natural resources for energy production. The country is however poor, and only about 25% of the population has access to electricity from the grid. A very large part of the energy used in the country is used in the residential sector, and there is a general lack of knowledge, regulations and tools concer
The influence of hydrogen exposures on monolayer graphene grown on the silicon terminated SiC(0 0 0 1) surface is investigated using photoelectron spectroscopy (PES), low-energy electron microscopy (LEEM) and micro low-energy electron diffraction (mu-LEED). Exposures to ionized hydrogen are shown to have a pronounced effect on the carbon buffer (interface) layer. Exposures to atomic hydrogen are s
The sex-dependent effect of environmental conditions on nestlings has been extensively studied in size dimorphic birds. Whether males or females are more sensitive to poor conditions is not yet clear; however, the degree of sexual size-dimorphism, brood size and their interactions seem to influence the pattern. Much less is known about sex-dependent environmental sensitivity in size-monomorphic sp
Phytoplankton and zooplankton interactions are vital in regulating nutrient cycles and productivity in aquatic ecosystems. Nevertheless, zooplankton account for the majority of phytoplankton mortality in the ocean. Due to predation pressures, phytoplankton have evolved several defensive traits, many of them being inducible defenses such as toxin production, colony size alterations, swimming behavi
The lignin-inspired derivatives coniferyl aldehyde and sinapyl aldehyde were used to prepare nitrile-containing methacrylate monomers with the aim to synthesize bio-based polymers exhibiting high glass transition temperatures (Tgs). The aldehydes were initially transformed to the corresponding nitriles and then underwent methacrylation before being polymerised by free-radical polymerisation. The h
