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Sedan mitten på 1900 talet har halvledarmaterial revolutionerat hur vi ser på världen genom uppfinningar som det har gett upphov till, såsom datorer, solceller, och lysdioder. Det är möjligheten att kunna styra halvledarens förmåga att leda ström—mellan att vara nästan metallisk till att vara isolerande—som gör den användbar för tillämpningar inom elektronik. Under de senaste decennierna har elektThis dissertation focus on the atomic-scale characterization of the surface properties and electronic structure of III–V semiconductor nanowires (NWs). Since the early 2000s, the fabrication and characterization of III–V NWs has been a very significant topic within material science due to their potential for applications in lighting, energy harvesting, and electronics. A prominent feature of the N

Popular Abstract in Swedish Kroppens immunförsvar, vars uppgift är att skydda oss mot infektioner, består av ett antal olika celltyper som till stor del finns i blodet. Immunförsvaret kan indelas i två delar; ett medfött försvar som är likadant hos alla individer och ett försvar som byggs upp under individens livstid. Det senare utformas olika beroende på vilka bakterier och virus som individen utThe cells of the innate immune system are essential for the host's first line defence against infection. Among these cells the neutrophil granulocyte has a central role by the production of antibiotic proteins and peptides. These are targeted for storage in secretory lysosomes and other neutrophil granules for subsequent release by regulated secretion in an inflammatory process. However, the granu

Objective This study provides the summary of current knowledge about migrant work in agriculture available from journal articles, books, reports and other relevant academic publications, focusing on political, economic, legal, social and medical aspects of migrant work in agriculture. Methods A systematic search was carried out on the LibHub and Google Scholar databases in order to compile the e

New and innovative production equipment can be developed by introducing lightweight materials in modern day automotive industry production lines. The properties of these new materials are expected to result in improved ergonomics, energy savings, increased flexibility and more robust equipment, which in the end will result in enhanced productivity. Carbon composite materials are one such alternati

This paper presents a person-centred model and a tangible computing approach to better adapt television media to meet two important needs of older people: social inclusion in their immediate surroundings and better support for one’s own reflections. Method The research project was carried out as a part of the construction, planning and implementation of a new nursing home. The implemented infrastr

The residual algal-bacterial biomass from photosynthetically supported, organic pollutant biodegradation processes, in enclosed photobioreactors, was tested for its ability to accumulate Cu(II), Ni(II), Cd(II), and Zn(II). Salicylate was chosen as a model contaminant. The algal-bacterial biomass combined the high adsorption capacity of microalgae with the low cost of the residual biomass, which ma

Molecular variation is often used to infer the demographic history of species, but sometimes the complexity of species history can make such inference difficult. The willow warbler, Phylloscopus trochilus, shows substantially less geographical variation than the chiffchaff, Phylloscopus collybita, both in morphology and in mitochondrial DNA (mtDNA) divergence. We therefore predicted that the willo

Cross-sections of whole vastus lateralis muscle from 20 men, 19 to 84 years of age, were prepared, and the cross-sectional area (microns2) of 375 type 1 and 375 Type 2 fibres was measured in five different regions throughout each muscle. In muscles from the old individuals, the mean CSA of Type 2 fibres was on average nearly 35% smaller (P less than 0.001) while the mean CSA of Type 1 fibres was o

The prognosis of patients with advanced stages of neuroblastoma with N-myc amplification remains poor despite escalated therapy, a situation that has called for alternative therapeutic approaches. Neuroblastoma cells, which represent immature peripheral neuronal cells, treated with certain physiologic and nonphysiologic agents such as retinoic acid (RA), phorbol esters and interferons (IFN) in vit

In this article the organization and functional details of the extracellular matrix, with particular focus on cartilage, are described. All tissues contain a set of molecules that are arranged to contribute structural elements. Examples are fibril-forming collagens forming major fibrillar networks in most tissues. The assembly process is regulated by a number of proteins (thrombospondins, LRR-prot

A particle-based transported probability density function (PDF) method with a novel chemistry acceleration technique is developed in this work. The technique is based on the chemistry coordinate mapping (CCM) approach that was proposed in our previous works for accelerating direct numerical simulations (DNS) of partially premixed combustion. The method is first validated using Sandia flames D and

This study analyses the effects of thinning on stand transpiration in a typical mixed spruce and pine forest in the southern boreal zone. Studies of transpiration are important for models of water, energy and carbon exchange, and forest management, like thinning, would change those processes. Tree transpiration was measured by the tissue heat-balance sapflow technique, on a reference plot and a th

Popular Abstract in Swedish Insulin frisätts från B-cellerna i bukspottkörteln (pankreas) när blodsockerhalten ökar över den normala (80-100 mg per dl), exempelvis efter en kolhydrat- och sockerrik måltid. Medan ?friska? B-celler har förmågan att reagera kraftigt redan på små (10%) förändringar i blodsockerhalten, så utvecklar ?ålders-diabetiska? B-celler en blodsockerblindhet och insulinfrisättniEndocrine cells as well as neurons release their hormones and transmitters by regulated exocytosis. In the pancreatic B-cell, stimuli like glucose initiate biochemical and electrical processes that culminate in influx of Ca2+, which then triggers exocytosis of insulin-containing granules. Fusion of the secretory vesicles occurs rapidly upon Ca2+-influx but requires a granule to be ?primed? by an A

The partly hot-water driven CO2 capture plant offers a significant potential for improvement in performance when implemented in a combined-cycle power plant (CCPP). It is possible to achieve the same performance with a dual-pressure steam cycle as in a triple-pressure unit. Even a single-pressure plant can attain an efficiency competitive with that achievable with a triple-pressure plant without t

Context. Gaia Data Release 1 (DR1) contains astrometric results for more than 1 billion stars brighter than magnitude 20.7 based on observations collected by the Gaia satellite during the first 14 months of its operational phase. Aims. We give a brief overview of the astrometric content of the data release and of the model assumptions, data processing, and validation of the results. Methods. For s

Using the combination of high resolution core level spectroscopy and density functional theory we present adetailed spectroscopic study for all clean and hydrogen covered phases of Ir(100). The results are complementedby an investigation of the hydrogen desorption process from various phases using temperature programmeddesorption spectroscopy and scanning tunneling microscopy. In total, all experi

Background The process of delivery entails potentially traumatic events in which the mother or child becomes injured or dies. Midwives and obstetricians are sometimes responsible for these events and can be negatively affected by them as well as by the resulting investigation or complaints procedure (clinical negligence). Objective To assess the self-reported exposure rate of severe events among m

This report describes the development and design of a new concept for a lifting device in Tetra Pak’s R1 filling line. It is important that the problems and challenges with the current design, the Tetra Pak R1 Elevator, is fathomed to get a better understanding of what was aimed to achieve in this thesis and why. The purpose of the Tetra Pak R1 filling line is to automatically fold, fill and seal

The Öresund region, or Greater Copenhagen as it also is represented as, is a cross-border region connecting Skåne with Copenhagen. Political initiatives have forced development towards a more integrated region with one regional identity. This has been complicated by border controls, redefining the national borders in an inconvenient way, especially for everyday transnational commuters. Through sem

Asylärendena kännetecknas av vissa unika särdrag. Till dessa kan räknas den enskildes ofta prekära situation, och att beslutsfattaren ska ta ställning till huruvida den sökande befinner sig i en situation i vilken denne är berättigad internationellt skydd undan förföljelser eller inte. Även maktförhållandet parterna emellan stärker behovet av försiktighet från beslutsfattarens sida. För att hanterThe asylum process is characterised by certain unique features. Amongst these are the precarious situation of the applicant, and the fact that the decision maker is to decide whether or not the applicant is in a situation that entitles him or her to international protection. The balance of power between the two parties is also a key feature that strengthens the need of caution by the decision make