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There are currently several commercially available radiotherapy treatment units without a flattening filter in the beam line. Unflattened photon beams have an energy and lateral fluence distribution that is different from conventional beams and, thus, their attenuation properties differ. As a consequence, for flattening filter free (FFF) beams, the relationship between the beam-quality specifier T

Background: The relationship between Helicobacter pylori infection and pancreatic cancer has been investigated in three previous studies with contradictory results. The aim of the present study was to investigate the association between H. pylori seropositivity and the risk for pancreatic cancer in a nested case-control study within a population based cohort. Methods: Selected birth- year cohorts

This paper extends theories of retail branding and consumer experience of retail stores by bringing consumer culture theory into the field of retailing. Using ethnographic data collection methods (photo-diaries, participant observations, long interviews, artifact collections) we studied the grocery shopping habits and life at home among Swedish middle-class working women with children. The analysi

Med en s.k. Pressure Plate utrustning kan porstukturen hos porösa material undersökas. För grovporösa material, t.ex. olika jordarter, kan även kapillära stighöjden -”sugförmågan”- och kornstorleken bestämmas på ett enkelt sätt. Metoden går ut på att man gradvis pressar ut vatten ur ett vattenmättat prov genom att utsätta detta för stegvis ökat tryck. Det finns ett enkelt samband -Laplace´s lag- m

We investigated the brain-tissue response to nanowire implantations in the rat striatum after 1, 6, and 12 weeks using immunohistochemistry. The nanowires could be visualized in the scar by confocal microscopy (through the scattered laser light). For the nanowire-implanted animals, there is a significant astrocyte response at week 1 compared to controls. The nanowires are phagocytized by ED1 posit

The membrane is often considered as the heart of the proton exchange membrane fuel cell (PEMFC), and it is of pivotal importance for the involved transport phenomena and performance of the entire PEMFC. The Nafion(R) membrane is the most commonly used type of membrane in PEMFCs. In this paper, the nano-scale structure of the Nafion(R) membrane is reconstructed using dissipative particle dynamics.

In the present work, fiber-based frequency-modulated light scattering interferometry (FMLSI) is developed and employed for studies of optical properties and dynamics in liquid phantoms made from Intralipid(®). The fiber-based FMLSI system retrieves the optical properties by examining the intensity fluctuations through the turbid medium in a heterodyne detection scheme using a continuous-wave frequ

Apolipoprotein M (ApoM) is a 25-kDa HDL-associated apolipoprotein and a member of the lipocalin family of proteins. Mature apoM retains its signal peptide, which serves as a lipid anchor attaching apoM to the lipoproteins, thereby keeping it in the circulation. Studies in mice have suggested apoM to be antiatherogenic, but its physiological function is yet unknown. We have now determined the 1.95

In order to allow different software applications, in constant evolution, to interact and exchange data, flexible file formats are needed. A file format specification for different types of content has been elaborated to allow communication of data for the software developed within the European Network of Excellence "NANOQUANTA", focusing on first-principles calculations of materials and nanosyste

Parkinson’s disease (PD) is a progressive neurodegenerative disorder, characterized by tremor, muscle rigidity and bradykinesia, which is primarily due to the degeneration of nigrostriatal dopaminergic neurons. Currently, patients are primarily treated with L-dopa and other drugs that enhance dopaminergic function. Those are effective during the first years, but eventually the majority of patients

Growing amounts of waste generation in remote areas without proper waste management systems is a problem to human health and the environment. The Amazon holds the biggest freshwater resources in the world, is a biodiversity hotspot and its communities are placed in distances that can take days by boat to be reached. A National policy with EPR instruments requires private companies to take-back pac

Geographical Information Systems (GISs) have shown to be of great help in the work at contaminated sites. Today there is an increase in the development of 3D modeling in many fields. However, to combine the advantage working with spatial data in a GIS and 3D modeling for subsurface soil data is limited. In this study, the possibilities of interpolating volumes of soil contamination in 3D were inve

Since the 1970’s there has been several attempts within the UN at drafting a binding instrument on business and human rights. Up until today, none of the attempts at adopting binding standards have succeeded, with the only successful initiative being the United Nations Guiding Principles on Business and Human Rights – a voluntary set of guiding principles meant to further the respect for human rig

Mitt syfte med denna uppsats är att skapa förståelse för hur HeforShe, som arbetar med jämlikhetsfrågan genom att engagera alla världens män, hanterar problematiken kring mäns dominanta och förmånliga plats i samhället. Hur ser rörelsens budskap ut och hur porträtteras det för att mobilisera män? Är HeforShe feministisk? Dessa frågor undersöker jag genom en retorikanalys av HeforShe-rörelsens offi

Tidigare forskning antyder att kompetensupplevelse såväl som socialt stöd från både kollegor och chefer har en betydelse för arbetstillfredsställelsen. Mestadels av den forskning som gjorts har emellertid rört sociala yrkeskategorier så som sjuksköterskor samt lärare, och få studier har undersökt andra kategorier som till exempel musiker. Syftet med studien var att undersöka hur kompetensupplevels

Flooding is a major risk to the ever increasing urban population, posing a threat to human lives but also causing traffic interruptions, economic losses and pollution. Built up areas are prone to flooding due to the changes of previously pervious surfaces being covered by buildings and impervious pavements, such as asphalt. Furthermore, the resulting increased surface runoff does often not get rou

Kandidatuppsatsen undersöker vilka arbetstagargrupper som omfattas av kategorierna i undantagskretsen, 1 § andra stycket LAS, och vilka centrala konsekvenser det medför. Det finns fem kategorier av arbetstagare som undantas från lagen (1982:80) om anställningsskydd och uppsatsen undersöker vilka arbetstagare som omfattas av varje kategori. Uppsatsen redogör för dem centrala konsekvenser som medföThe bachelor thesis investigates which groups of employees that are included by the categories in the exception circuit in 1 § second subparagraph LAS and what central consequences it entails. There are five categories of employees that are excluded from LAS and the thesis investigates which employees are included in each category. The thesis describes the central consequences that entails with t