Sökresultat

Popular Abstract in Swedish Proteiner är en av kroppens viktigaste beståndsdelar. Proteiner bygger upp stabila nätverk för att cellerna ska ha sin rätta form, de transporterar in vatten, salt och andra molekyler in i cellerna så att vi kan ta upp näring och de katalyserar kemiska reaktioner. Proteiner är uppbyggda av aminosyror som binds ihop till en kedja och som sedan veckar ihop sig så att protSeveral neurodegenerative diseases are caused by peptides or proteins forming amyloid fibrils such as the Aβ peptide involved in Alzheimer’s disease and the huntingtin exon-1 with a prolonged polyglutamine (polyQ) stretch involved in Huntington’s disease. The ability to form amyloid fibrils is an intrinsic feature in all proteins. The fibrils are built up of monomers to form elongated structures w

Many fish depend primarily on their tail beat for propulsion. Such a tail is commonly modeled as a two-dimensional flapping foil. Here we demonstrate a novel experimental setup of such a foil that heaves and pitches in a soap film. The vortical flow field generated by the foil correlates with thickness variations in the soap film, which appear as interference fringes when the film is illuminated w

1. Quantitative reconstruction of past vegetation distribution and abundance from sedimentary pollen records provides an important baseline for understanding long term ecosystem dynamics and for the calibration of earth system process models such as regional-scale climate models, widely used to predict future environmental change. Most current approaches assume that the amount of pollen produced b

Water-based copolymer dispersions were prepared using methyl methacrylate (MMA), ethyl acrylate (EA) (MMA/EA = 1:2), and a series of nonionic polymerizable surfactants, i.e., "surfmers" based on poly(ethylene glycol)-(meth)acrylates. The latexes were compared with the behavior of a conventionally stabilized (nonionic nonylphenol ethoxylate, NP100 with 84 ethylene oxide units) dispersion with the s

Mobility particle size spectrometers often referred to as DMPS (Differential Mobility Particle Sizers) or SMPS (Scanning Mobility Particle Sizers) have found a wide range of applications in atmospheric aerosol research. However, comparability of measurements conducted world-wide is hampered by lack of generally accepted technical standards and guidelines with respect to the instrumental set-up, me

Background: MRI physics simulators have been developed in the past for optimizing imaging protocols and for training purposes. However, these simulators have only addressed motion within a limited scope. The purpose of this study was the incorporation of realistic motion, such as cardiac motion, respiratory motion and flow, within MRI simulations in a high performance multi-GPU environment. Method

The understanding of biochemical feedback mechanisms in the climate system is lacking knowledge in relation to bi-directional ammonia (NH3) exchange between natural ecosystems and the atmosphere. We therefore study the atmospheric NH3 fluxes during a 25-day period during autumn 2010 (21 October to 15 November) for the Danish beech forest Lille Bogeskov to address the hypothesis that NH3 emissions

Liberalisation and deregulation of public utility sectors has been introduced in several European countries. In 1994 Swedish municipalities were instructed to reorganise waste collection routines by enlarging the number of fractions to be able to reuse waste fractions in an environmental benign way. The public waste sector have to a considerable extent been diversified and deregulated. At the same

Popular Abstract in Swedish I Sverige bestäms fastighetsgränsers sträckningar i första hand av gränsmärken på marken, därefter av förrättningskartor och mätuppgifter. Under senare år har efterfrågan på digital fastighetsinformation ökat kraftigt, inte minst beträffande lägesnoggranna gränsdata i den nationella registerkartan. Den utvecklade positioneringstekniken med GPS utgör idag en grundförutsäIn Sweden, the course of a property boundary is first and foremost determined by boundary marks on the ground, and only secondly by cadastral survey plans and measurements. In recent years, the demand for digital property information has increased substantially, not least in respect of accurate boundary data in the national cadastral map. Today, well-established techniques such as GPS positioning

Popular Abstract in Swedish Den forskning som presenteras här bygger på studier av ett antal beståndsdelar i bindväv vars funktioner är i stort sett helt okända. Bindväv finns i många strukturer i människokroppen; brosk, senor, skelett, blodkärlens väggar, hud, stödjevävnad runt olika organ etc. Karakteristiskt för bindväv är att cellerna sitter glest, omgivna av ett heterogent material som kallasThe extracellular matrix plays an integral role in tissue remodeling and development and it defines the different mechanical properties of a variety of connective tissues. Its complexity in composition and the details in organization has only been partly elucidated. This thesis focuses on collagen VI and the mutual interactions of a number of matrix proteins that lie within close proximity. Collag

During the 1990s several kinds of reorganization has taken place in public services in Sweden. Reorganizations according to the idea of market economy have been most salient and debated. In many municipalities private companies have started to organize home care service for elderly, financed by tax. Public home care organizations have reorganized the working organization and managing structure, pa

Popular Abstract in Swedish Som skydd mot infektioner och andra omgivningshot har högre organismer utvecklat olika försvarssystem, där det mest betydelsefulla brukar sammanfattas under begreppet immunsystem. I detta ingår olika typer av specialiserade celler med ursprung i kroppens blodbildande organ, benmärgen. Den av immunsystemets olika celltyper som är viktigast för att skydda mot bakterieinfeThe serine proteases cathepsin G, leukocyte elastase, proteinase 3, and the inactive protease homologue azurocidin, stored in the azurophil granules of neutrophils, belong to a hematopoietic serine protease superfamily with members in mature effector cells of bone marrow origin. Promonocytic U-937 cells were used for studying the biosynthesis of cathepsin G and leukocyte elastase by biosynthetic r

Popular Abstract in Swedish Avhandlingen behandlar den kristna minoriteten Old Order Amish i USA ur ett ecklesiologiskt perspektiv. Genom att dels använda centrala begrepp som utgår från den undersökta gruppens egen religiösa vokabulär, dels några av de angreppssätt som är förhärskande inom det kyrkovetenskapliga studiet, framträder en fördjupad bild av amishfolkets insida. Hur uppfattar amish siThe thesis focuses on the way the Amish view their life and actions as Christians. With its basis in first-hand observations from the settlements of Dover (DE) and Lancaster (PA) the inquiry describes, analyzes and interprets the ecclesiastical life of the Old Order Amish from an ecclesiological viewpoint. Utilizing a specific model of analysis the dissertation examines the institutions (church/f

This study aims to investigate the possibility of implementing serial autoradiography using a silicon strip detector as an imaging modality in pre-clinical radionuclide therapy research, in order to study the effect of non-uniform uptake on absorbed dose distribution and biological response. Tumor tissues expressing CD20 (B-cell lymphoma) or carcinoembryonic antigen (CEA; colorectal cancer) were e

Objective: There is increasing evidence for a significant effect of processed meat (PM) intake on cancer risk. However, refined knowledge on how components of this heterogeneous food group are associated with cancer risk is still missing. Here, actual data on the intake of PM subcategories is given; within a food-based approach we considered preservation methods, cooking methods and nutrient conte

Telephone service in Argentina has since its beginning been characterized as one of the most developed in South America. Regarding its development, two distinct periods can be identified. An initial period of private ownership extended from 1878 to 1946. In 1946, when the largest telephone company was bought by the state, a period of predominant state-ownership began that lasted until 1990 when th

Popular Abstract in Swedish Den vanligaste dödsorsaken i västvärlden är hjärt-kärlsjukdom. Därför finns det ett stort intresse att undersöka vilka faktorer som är av avgörande betydelse för att vi ska utveckla t.ex ateroskleros (åderförkalkning). Spelar livsstil och matvanor någon roll eller är det helt och hållet genetiskt betingat? Utvecklingen av förebyggande åtgärder, operationsteknik och post

The UN conference in Rio on Environment and Development in 1992 was the starting point for the local Agenda 21 work and several Swedish municipalities began their local Agenda 21 processes in 1993. This thesis aims at investigating how people perceive sustainable development in four Swedish municipalities. What is important and who is responsible? Individual influence and strategies for implementa