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Ämne för detta examensarbete valdes efter en förfrågan från UNICEF att bistå dem att utvärdera ett mobilt system för dricksvattenproduktion. Sedan juni 2003 har EmWat 4000-systemet använts i Etiopien i områden med vattenbrist. För att försäkra sig om att systemet fungerar effektivt och att det producerade vattnet är av tillräckligt hög kvalitet behövdes en utvärdering. Målet med examensarbetet är

Fuel cells are considered as a promising alternative environmentally benign power source to the existing ones depending on petroleum oil. Especially, proton-exchange membrane fuel cells (PEMFCs) have been intensively developed during the last decade because of their wide application windows including various portable, stationary and transportation applications. The market has been and will be main

Cerebral amyloid-β aggregation is an early pathological event in Alzheimer disease (AD), starting decades before dementia onset. Estimates of the prevalence of amyloid pathology in persons without dementia are needed to understand the development of AD and to design prevention studies.

Popular Abstract in Swedish Astma och hösnuva (allergisk rinit) är två närbesläktade sjukdomar som båda har sin grund i en långdragen, kronisk inflammation i luftvägsslemhinnan. Vid både astma och hösnuva har slemhinnan en benägenhet att reagera kraftigare än normalt på retningar (s.k. hyperreaktivitet). Inflammationen och hyperreaktiviteten regleras av hundratals olika signalsubstanser (mediatoreMucosal inflammation and airway hyperreactivity are regulated by hundreds of different mediators. The recent discovery of gaseous mediators, produced and active within the airways, opens new possibilities for identification of therapeutic targets and ways to monitor airway inflammation. This thesis is focused on two such mediators, nitric oxide (NO) and carbon monoxide (CO) along with their role i

De senaste åren har upphovsrätten fått mycket uppmärksamhet eftersom den digitala utvecklingen och framväxandet av Internet gjort det möjligt att snabbt och utan kvalitetsförlust lagra och överföra stora mängder ljud, bild och text. Denna överföring är inte sällan olovlig och det sker idag omfattande upphovsrättsintrång över Internet. I dessa intrång är det i huvudsak tre olika aktörer som är inblIn recent years, copyright law has been given much attention since the digital development and the emergence of the Internet made it possible to quickly storage and transfer large amounts of audio, images and text without loss of quality. The transfer is often illegal and there is a widespread copyright infringement going on in the Internet environment. In these infringements there are three main

Människans vilja att förstå universums mest fundamentala byggstenar och dess naturlagar är den drivkraft som ligger till grund för elementarpartikelfysiken. Den teoretiska forskningen inom detta område vägleds idag till stor del av data från LHC-experimentet utanför Genève (LHC förkortar `Large Hadron Collider', dvs.~den Stora Hadronacceleratorn). Vid LHC accelereras protoner till extremt höga hasThe four articles contained in this thesis all concern aspects of model building beyond the Standard Model (BSM). While Paper I mainly serves as a ``tool paper'' in which the results can be used to simplify certain calculations of one-loop effects from new heavy particles, Paper II--IV all deal with consequences of family symmetries in several BSM scenarios. Paper I. We derive expressions for any

Popular science summaryWater is very important for life. In order to survive every organism needs to control the amount of water in its cells. One of the main ways the cell regulates its water content is through aquaporins. Aquaporins are membrane proteins that allow water and/or small neutral molecules to enter or exit the cell. Aquaporins form a large family and are present in all life forms, hoAbstractAquaporins are membrane integral proteins that facilitate the transport of waterand/or other small neutral molecules across biological membranes in cells in allforms of life. Among the subfamilies of aquaporins in higher plants, the X IntrinsicProteins (XIPs) are the most recently discovered subfamily and the leastcharacterized. However, the aromatic/arginine (ar/R) selectivity filter and

Much of our built environment is constructed to accommodate ‘normate’ (Garland-Thomson 1996; Hamraie 2017) bodies. This fact may remain invisible to normate users of public space, much as the ordering of human interaction through categorisation is often invisible (Bowker & Star 1999). Reading semiotic landscapes through the dis/abling (Campbell 1999) of bodies that (attempt to) move through thMuch of our built environment is constructed to accommodate ‘normate’ (Garland-Thomson 1996; Hamraie 2017) bodies. This fact may remain invisible to normate users of public space, much as the ordering of human interaction through categorisation is often invisible (Bowker & Star 1999). Reading semiotic landscapes through the dis/abling (Campbell 1999) of bodies that (attempt to) move through th

Popular Abstract in Swedish Varje år nydiagnostiseras cirka 2 000 personer med blåscancer i Sverige. Blåscancer drabbar främst män och är för närvarande den femte vanligaste cancerformen bland män efter prostata-, hud,- lung- och koloncancer. Risken att insjukna i blåscancer ökar med ålder och merparten av nydiagnostiserade patienter är över 60 år. Blåscancer är en heterogen sjukdom med avseende pThe general aim of this thesis was to molecularly characterize urothelial carcinoma (UC) at the transcriptional level using gene expression microarrays to improve the classification and pathogenetic understanding of this disease. In the first two studies (Articles I and II), gene expression profiling was used to study dysregulated transcriptional networks in a large cohort of UCs. We also investig

GRASP (Group and Social Psychology) is an interdisciplinary conference, which aims to provide a community around social psychological issues for researchers, practitioners, and graduate students from the Nordic countries within the fields of psychology, sociology, education, behavioural sciences and social work to share, exchange, learn, and develop preliminary results, new concepts, ideas, princi

This thesis has been performed in the ethylene oxide plant at Akzo Nobel in Stenungsund. Ethylene oxide is an important ethylene based intermediary compound. The primary use for ethylene oxide is in the manufacture of derivatives such as ethylene glycol, surfactants and ethanolamine’s. In the production of ethylene oxide, ethylene and oxygen reacts over a silver catalyst surface. Mainly two reactThere are high demands on companies today to survive when competition is high and that also applies to companies that manufacture ethylene oxide. The raw material in the production of ethylene oxide is ethylene and oxygen where ethylene is the largest cost. To facilitate the reaction a catalyst, which increases the reaction rate, is used. The catalyst has a major influence on the efficiency and ec

I detta arbete undersöks skyddszoner intill skyddade områden i skogsmark, hur de kan uppstå, vilken rättslig grund som finns för dessa samt vilka konsekvenser de kan få för fastighetsägare. Arbetet är avgränsat till att undersöka skyddszoner intill naturreservat, nationalparker samt Natura 2000-områden. Naturvård kopplat till äganderätten i skog är idag ett högaktuellt ämne som bland annat resulteThis master thesis aims to investigate buffer zones in forests close to a protected area; how they can occur and what consequences they may have for landowners. Protection of forests due to high nature values is a highly debated topic in Sweden. The debate has led to a governmental investigation concerning the subject. In order to find real cases where a buffer zone has occurred, Swedish authori

This report is a study of the impacts of extreme sea levels and waves on the coastal area of the bay of Lundåkra. The bay is characterized by shallow sea bottoms and a flat topography, particularly in the north. Analyses have been based on historical data. To expand the analyses to apply for a future scenario a change in mean sea level has been considered. Based on general recommendations from the

The estimated number of children who are utilised as child soldiers all over the world is 250,000 today. Based on the Coalition to Stop the Use of Child Soldiers research children were used in armed conflicts in 20 countries from 2004-2007. One of the most prominent nations involving the use of child soldiers is the Democratic Republic of the Congo. It is estimated, that 40% of them are girls, who

JAKTEN PÅ VÄLGRUNDADE BESLUT – HUR ANVÄNDS RISK- OCH SÅRBARHETSANALYSERNA? För att klara de påfrestningar som vårt samhälle ställs inför krävs det att de beslut som tas är välgrundade. Syftet med denna studie är att belysa hur risk- och sårbarhetsanalyser används som ett verktyg för beslutsfattande. Trots att verktyget är värdefullt och uppskattat av de som jobbar inom området så är kopplingarna Risk and vulnerability assessments are an important part of the Swedish disaster management system and can be used as input for decision making. Today disaster management decisions are made on all levels in Sweden depending on the extent of the decisions. The purpose of this thesis has been to perform a descriptive study of how risk and vulnerability assessments are utilised as input to decision m

Populärvetenskaplig sammanfattning: Är klimatforskningen skev? En central fråga är om vi kan lita på att vetenskapliga tidskrifter återger en rättvis bild av aktuella forskningsresultat? Dessutom bör vi fråga oss hur rapporteringen påverkas då betydande händelser sker inom vetenskapsvärlden. I november 2007 och senare 2009 skedde två viktiga företeelser inom klimatforskningen som potentiellt kanAbstract The declaration of a scientific consensus concerning anthropogenic causes for climate change by the IPCC in their fourth assessment report (AR4), published in 2007, initiated a heated debate. During this debate, experts within the IPCC were accused of selective reporting and the AR4 got strong source criticism by politicians, stakeholders and climate skeptics in general. The debate furth

The big risk topic in recent years, in the nancial industry, has been about capital requirements. The nancial crisis in 2008 displayed several shortcoming regarding weak capital buers in banks. After that crisis big eorts have made sure that the capital buers have been improved drastically over Europe. Now another issue is starting to worry nancial regulators in Europe regarding the quality of ban

Imagine a house situated on 2 600 meters above sea level in the Himalayan mountain range. It is in the middle of January and – 2 degrees Celsius inside. The only source of additional heat you have access to is lighting an open fire or firing in the cooking stove, both of which you fuel with some kind of solid biomass such as wood or agricultural waste. The fire is intensifying, you begin to feel t