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Popular Abstract in Swedish Den elektriska aktiviteten i hjärtats förmak vid kroniskt förmaksflimmer Bakgrund: Det mänskliga hjärtmuskeln består av fyra delar som var och en omsluter ett hålrum, vänster och höger förmak samt vänster och höger kammare. Ett hjärtslag, dvs den sammandragning av hjärtmuskeln som pumpar runt blodet i kroppen, utlöses normalt av att en elektrisk impuls bildas i sinuskChronic atrial fibrillation (CAF), with a prevalence progressively increasing with age, is one of the most common cardiac arrhythmias in man and associated with increased morbidity and mortality. Previous studies have shown that, in animals as well as in man, experimental atrial fibrillation is based on different types and dimensions of intra-atrial electrical re-entry. However, there is a lack of

The system that regulates insulin secretion from beta-cells in the islet of Langerhans has a capsaicin-sensitive inhibitory component. As calcitonin gene-related peptide (CGRP)-expressing primary sensory fibers innervate the islets, and a major proportion of the CGRP-containing primary sensory neurons is sensitive to capsaicin, the islet-innervating sensory fibers may represent the capsaicin-sensi

The increasing population diversity in Europe demands clarification of possible ethnic influences on the growth and health of immigrant children and their psychosocial adaptation to the host countries. This article assesses recent data on immigrant children in Europe in comparison to European natives by means of a systematic review of the literature on growth patterns and data on children's health

We consider a cooperative wireless network where a set of nodes cooperate to relay in parallel the information from a source to a destination using a decode-and-forward approach. The source broadcasts the data to the relays, some or all of which cooperatively beamform to forward the data to the destination. We generalize the standard approaches for cooperative communications in two key respects: (

The temperature distribution in a concrete structure varies due to complex interactions with the surrounding climate. Solar radiation, air temperature, wind speed and long-wave radiation all affect the temperature in the material, and may cause movements in the longitudinal and transversal directions. If these movements are restrained, stresses and strains can be induced which may contribute to cr

OBJECTIVES: To map out-patients with Chronic Obstructive Pulmonary Disease (COPD) with special reference to patients suffering from acute exacerbations, and to describe COPD health care structure and process in Swedish clinical practice in a real life setting. DESIGN: Retrospective, non-interventional, epidemiological survey. SETTING: 141 hospital based out patient clinics (OPC, n=30) and primary

Free movement of labour and open borders are one of the main principles of the European Union. Workers can relatively easy relocate in the search for new job opportunities and firms compete internationally for productive labour. Corporate taxes affect firms’ profits, and also their investment decisions. The costs associated with employment on the other hand have not been studied to the same extent

In recent years new ways to deal with trade barriers, aside from the traditional tariff and quota reductions, has been introduced to trade negotiations. These have the collective name of trade facilitation and focuses on the less visible parts of barriers to trade. As this started to be discussed in policy circles economic research picked up interest as well. However, focus in the research has bee

The Turkish tense-aspect-modality system and its complexity has been the topic of many previous studies (Csato, 2000; Johanson, 2016; Slobin & Aksu, 1982) and there are many arguments on whether some of the tense-aspect-modality markers should be categorized as such in the first place, as well as what they express when used in combination with different grammatical markers. This thesis focuses

Kan mindfullness hjälpa unga som mår psykiskt dåligt? Det är allt fler i samhället som mår psykiskt dåligt och antalet unga med psykisk ohälsa ökar. Psykisk ohälsa handlar om hur vi mår och trivs med livet samt hur vi hanterar livets upp- och nedgångar. För många som mår psykiskt dåligt tar det emot att söka professionell hjälp då det finns en skam för att inte kunna hantera sin egen livssituatio

The contribution of greenhouse gas emissions in the production of construction materials has sparked a new interest and recent changes in building regulations regarding the use of renewables like wood as the main component in load-bearing elements. Recent regulation changes focus on allowing taller timber structures which bides the question of how to adequately maintain an acceptable level of f

Dam deconstruction has during the last decades proven to be a successful measure to re-establish fish migration and spawning in the upper reaches of rivers. In addition, an ample collection of literature has provided evidence that marine derived nutrients (MDN) released by anadromous fish serves as an important supplement for production, especially in oligotrophic rivers and riparian zones. An inc

The purpose of this study is to quantitatively investigate the moderating effect of consumers' need for uniqueness (NFU) in the relationship between perceived brand stereotypes, brand emotions, and perceived customer value. The study follows a quantitative research method with a sample-survey research design, where hypotheses have been developed supported by a theoretical framework. Data was c

Sjögräs - den biologiska mångfaldens bevarare Sjögräs är nog ett ord som de flesta använder för att allmänt benämna havslevande växter, men sjögräs skiljer sig faktiskt från mycket annat, som t.ex. alger, då de är blomväxter. I Sverige är den vanligaste sjögräsarten ålgräs (Zostera marina L.), och den växer på grunda sand- eller lerbottnar från Nordhavet till Stockholms norra skärgård. Vad som Seagrass meadows are ecosystem engineers providing several ecosystems services, of which the maintenance of marine biodiversity may be of greatest importance. However, these meadows are among the most threatened ecosystems on Earth due to anthropogenic stressors such as eutrophication, overfishing, near-shore coastal development and climate change. To investigate the importance of seagrass for sha

The ATLAS@Home project is a volunteer computing project, part of the larger LHC@Home project, aimed at using the computational power of personal computers from volunteers around the globe, who are interested in helping with the particle physics research taking place at the ATLAS experiment at LHC. Up this point it runs only ATLAS detector simulation tasks. This thesis explores the possibility of h

Recent developments in smart manufacturing enable convergence between the digital and physical worlds of modern manufacturing facilities. This evolution is, however, far from trivial and thorough research and investigation needs to be conducted regarding dynamic connectivity of assets and implementation of data driven analytics, which provides deeper insight into the operational processes. Scania

High data rate is still the most crucial factor in cellular systems, and with 5g approaching new techniques are studied to achieve higher bit rates. Using MIMO technology, the spatial domain was exploited through beamforming and multiplexing multiple users’ data together assured more spectrum efficiency which resulted in higher bit rates. Reciprocity based beamforming is feasible in TDD systems du

It is questionable how project management can aid an organization’s pursuit of achieving a sustained competitive advantage through innovation. Especially within the technology industry, organizations are facing increasing competition in today’s dynamic environment and are obligated to act in order to fulfill customers’ eagerness for innovative products. This research study is targeted at merging t

Version 3 av ecoinvent är den första databasen att erbjuda möjligheten att koppla samman livscykelinventeringar (LCI) utefter olika länkningsalgoritmer. Genom dessa länkningsalgoritmer tar ecoinvent nu fram bakgrundslivscykelinventeringar med både medeldata och långsiktig marginaldata (t.ex. över elmarknader i olika länder). Idealt sett representerar långsiktig marginaldata över elmarknader den ytVersion 3 of the ecoinvent database is the first background database to offer the possibility to link life cycle inventories (LCI) according to different linking algorithms. Using those algorithms, ecoinvent now provides both average and long-term, marginal background LCI data, (e.g. for electricity markets for different countries). Long-term, marginal data for electricity markets ideally represen