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Contaminated drinking water (DW) is a major source of exposure to per- and polyfluoroalkyl substances (PFAS) at locations around PFAS production/use facilities and military airports. This study aimed to investigate quantitative relationships between concentrations in DW and serum of nine perfluoroalkyl acids (PFAAs) in Swedish adult populations living near contamination hotspots. Short-chained (PF
In the suite of laboratory measurements described here and in companion articles we deal with the hygroscopic growth and activation behavior of coated soot particles synthesized to mimic those of an atmospheric aerosol originating from biomass combustion. The investigations were performed during the measurement campaign LACIS Experiment in November (LExNo) which took place at the Leipzig Aerosol C
Popular Abstract in Swedish Bakgrund Neonatal intensivvård är under ständig utveckling, vilket medfört att allt mindre barn överlever efter att ha fötts prematurt. Ett tydligt mått på detta är att gränsen för livsduglighet (den gestationsålder då individen beräknas ha 50% chans att överleva) har skjutits bakåt till att under de senaste två decennierna ligga runt graviditetsvecka 24. Barn som föds Although advances in neonatal care have resulted in increased survival rates among extremely preterm infants (born < 28 gestational weeks), they still face substantial morbidity risks during the neonatal period. The question of possible later outcomes is a key issue faced by health care professionals working with these infants. Objectives The objective of the present thesis was to explore develo
Catalysts of the nominal composition Sb0.9V0.9-xTixOy, 0.0 less than or equal to x less than or equal to 0.9, were prepared and characterized with X-ray diffraction, Fourier transform-Raman spectra, diffuse reflectance infrared Fourier transform spectra, transmission electron microscopy, electron diffraction, and X-ray microanalysis. The catalysts were used for the ammoxidation of propane to give
Background: Physiotherapy research concerning interventions for children with CP is often focused on collecting evidence of the superiority of particular therapeutic methods or treatment modalities. Articulating and documenting the use of theory, instrumentation and research design and the assumptions underlying physiotherapy research interventions are important. Physiotherapy interventions focusi
Most climate change scenarios predict that the variability of weather conditions will increase in coming decades. Hence, the frequency and intensity of freeze-thaw cycles in high-latitude regions are likely to increase, with concomitant effect on soil carbon biogeochemistry and associated microbial processes. To address this issue we sampled riparian soil from a Swedish boreal forest and applied t
Popular Abstract in Swedish Gliom är den vanligaste typen av hjärntumörer hos vuxna. Den mikroskopiska klassificeringen av de olika formerna av gliom är subjektiv och i vissa fall t.o.m. felaktig, vilket leder till klinisk oklarhet som kan hindra utvecklingen av terapier som riktas mot speciella egenskaper som kännetecknar speciella typer av gliom. EGFR och PDGFRA är en cellreceptor som har en cenGlioma is the most common type of primary tumor in the adult central nervous system (CNS). However, the current classification of gliomas is highly subjective and even inaccurate in some cases, which leads to clinical confusion and hinders the development of targeted therapies. EGFR and PDGFRA play crucial roles in glia development and glioma pathogenesis. In this thesis we aim to establish a glia
Several high resolution electrophysiological techniques such as measurements of cell membrane capacitance and amperometry are used to detect exocytotic events. A novel method was developed in this study based on the expression of P2X2 receptor channel in secreting cells. The presence of ATP sensitive channel on the cell membrane permitted the electrical detection of minute (amoles) quantities of A
To compare the long-term outcome after percutaneous coronary intervention with onew-generation' drug-eluting stents (n-DES) to oolder generation' DES (o-DES), and bare-metal stents (BMS) in a real-world population. We evaluated 94 384 consecutive stent implantations (BMS, n 64 631; o-DES, n 19 202; n-DES, n 10 551) in Sweden from November 2006 to October 2010. All cases of definite stent thrombosi
Rationale and Objectives: To investigate for differences in metabolic concentrations and ratios between patients with systemic lupus erythematosus (SLE) without (group SLE) and those with neurological symptoms (group NPSLE) compared to a healthy control (group HC) in three normal-appearing brain regions: the frontal white matter, right insula (RI), and occipital gray matter and whether changes in
In today’s connected world, businesses are increasingly going online. Additionally, the online industry is transforming into an international business arena, flourishing with opportunities to grow and expand. However, the internationalisation has raised a number of challenging issues. One of these challenges is foreign exchange. Foreign exchange is needed to sell and buy on markets with different
In the creation of the Swedish Torts Act of 1972, questions of autonomy were raised and discussed in a number of different ways. Its treatment here and in the writing of several important legal scholars in the period between the 1864 Penal Law and the new Torts Act offers several valuable insights into the problem of autonomy and tort law today, not least concerning robotics and AI. This essay ar
T cells play an important role in the immune system where T cell receptors (TCR) identify foreign pathogens bound to major histocompability complex (MHC) molecules on antigen presenting cells (APCs). The detection of an antigen causes the T cell to trigger, which is an activation of the cell that results in a cellular immune response. This triggering process is not fully understood and studying th
Popular science summary Spatial Memory Accuracy in Marsh tits (Poecile palustris) - an experimental study Food hoarding is a prevalent food protection behaviour in nature and it is performed by variety of animals including some mammals and birds. Two main food hoarding strategies have been observed among animals; larder hoarding and scatter hoarding. Larder hoarders aggregate all their food in
The Maha Oya river mouth, located on the west coast of Sri Lanka, is seasonally closed by a sand bar formed at the river mouth due to little rainfall and thus little river discharge. A new Outlet, located just north of the Maha Oya river mouth, was created by the 2004 tsunami. The Outlet remains open all year because of its location in the lee of an offshore breakwater. When the Maha Oya river mou
Popular Abstract in Swedish Ett beräkningsprogram, "FREIA", lämpligt för industriell brandriskanalys presenteras. Programmet beräknar skada på människor inom och utom en byggnad på grund av en brand eller ett utsläpp av farligt gods. För några av de i riskanalysen ingående momenten har ytterligare forskning utförts. Dessa områden är: Detektion, Släckmedel samt Brännskada på människa. Det är i dagA tool suitable for conducting industrial fire and explosion hazard analysis is presented, together with an identification of weak links in the hazard evaluation chain. For some of the weak links additional research has been carried out. The tool, "FREIA", evaluates the consequences for humans and components due to fires and accidental releases indoors and outdoors using established engineering m
Background. Increased levels of nitric oxide (NO) and the exudations of plasma proteins to the airway lumen have both been considered characteristics of airway inflammation. The aim of the present study was to investigate a possible relationship between nasal NO concentrations and acutely induced exudative inflammation of the nasal mucosa. Methods: Twelve healthy non-allergic subjects participated
Popular Abstract in Swedish Avhandlingen innehåller sju artiklar. Här presenteras ett nytt koncept för att beskriva hur fukt transporteras i porösa material. Detta bygger på införandet av en äkta flödespotential, Kirchhoff's potential. Betraktelsesättet täcker hela processen från mätning av materialdata till numerisk beräkning av fukttransport. Modeller för beräkning av fuktinträngning vid stegäThe work presented in this thesis is focused on the development of the new concept to describe isothermal moisture transport using Kirchhoff potentials. The first four papers deal with moisture transport in porous media using Kirchhoff potentials. The last three papers deal with wood. Here the theory is extended to the case of anisotropic moisture transport. The seven papers have the following con
Absolute regional cerebral blood flow (CBF) was measured in ten healthy volunteers, using both dynamic susceptibility-contrast (DSC) magnetic resonance imaging (MRI) and Xe-133 SPECT within 4 h. After i.v. injection of Gd-DTPA-BMA (0.3 mmol/kg b.w.), the bolus was monitored with a Simultaneous Dual FLASH pulse sequence (1.5 s/image), providing one slice through brain tissue and a second slice thro
The break up of the family unit leads to new living arrangements and significant changes for children. This can be an extremely upsetting experience for a child, especially if the child is old enough to understand what is happening. New living arrangements can effect a childs fundamental sense of security as well as having consequences later on in life. The object of this research paper was to exa
