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Solar cells are a potent and renewable alternative to generate electricity. Through absorption of energetic photons electrons are excited generating electron-hole pairs or charge carriers and through separation of these charge carriers a current can flow through the device. In this project Molybdenum oxide (MoOx) is tested as a hole selective contact in n-i-p Indium phosphide (InP) nanowire solar
Denna uppsats syftar till att klarlägga i vilka situationer en ny verksamhetsutövare kan bli efterbehandlingsskyldig för föroreningar orsakade av en tidigare verksamhetsutövare. Det första som tas upp är vad ett verksamhetsförvärv är för något, för att ge en tydlig bild av exakt vad uppsatsen ska behandla. Detta efterföljs av bakgrunden till miljöbalkens bestämmelse 10 kap 2 § miljöbalken som är dThis essay aims to clarify in which situations it is possible for new operators to become responsible for an environmental debt caused by an old operator. The first thing that this essay brings up is what asset acquisitions is and what separates them from company acquisitions and mergers. This is done to clarify exactly what the essay is about. This is followed by a description of the background a
Sverige står inför en mycket stor investering inom järnvägen. Nya stambanor kommer att koppla samman Sveriges stora regioner och samtidigt minska restiden mellan dem. Järnvägen ses även som ett klimatsmart resealternativ, vilket bidrar till att fler väljer att ta tåget framfört till exempel flyget. Banorna kommer att utsättas för olika väder beroende på var i landet de befinner sig. Detta gör att
This thesis tries to answer how acts of homemaking can manifest with regard to four young adults in an urban environment. The paper takes a closer look at how the material takes form to create meaningful and concrete ways of navigating an uncertain landscape of adulthood in Stockholm, Sweden. Through the understandings of material culture made possible by Daniel Miller, Anat Hecht, Bodil Birkebæk
For many decades, Sweden has been famous for its ambitious investments in active labour market policy programs, particularly in different types of wage subsidies/subsidy programs. There are important characteristics distinguishing the programs, but they have in common that the hiring company receives a substantial subsidy from the Public Employment Service (PES) for hiring either long-term unemplo
Fermentation of biomass residues and second generation biomasses is potentially a way to enable a sustainable production of hydrogen. Simulation models which calculate mass and energy balances, developed with Aspen Plus (R), are used to integrate the process steps necessary to produce pure hydrogen from biomass in a 2-stage fermentation process. Process and heat integration are introduced to reduc
Background and Purpose-High-dose heparin has been used extensively to treat patients with progressive ischemic stroke, but the scientific support is poor and the current stroke guidelines advise against its use. We studied how heparin treatment for progressive stroke has been discarded in Sweden. Methods-All 78 hospitals in Sweden that admit acute stroke patients participate in Riks-Stroke, the Sw
The development of models that provide accurate spatio-temporal predictions of ambient air pollution at small spatial scales is of great importance for the assessment of potential health effects of air pollution. Here we present a spatio-temporal framework that predicts ambient air pollution by combining data from several different monitoring networks and deterministic air pollution model(s) with
Despite its present shortage, He-3 continues to be the most common neutron converter for detectors in neutron scattering science. However, it is obvious that the development of large area neutron detectors based on alternative neutron converters is rapidly becoming a matter of urgency. In the technique presented here, grids each comprising 28 (B4C)-B-10 layers ( each 1 mu m thick) are used to conv
A single antenna based virtual antenna array at the receiver can be used to find direction of different incoming radio signals impinging at the receiver. In this paper, we investigate the performance of random 3D virtual antenna arrays for DoA estimation. We have computed a Cramer-Rao Lower Bound (CRLB) for DoA estimation if the true antenna positions are not known, but these are estimated with an
We propose and demonstrate a new approach for the simulation of woody ecosystem stand dynamics, demography, and disturbance-mediated heterogeneity suitable for continental to global applications and designed for coupling to the terrestrial ecosystem component of any earth system model. The approach is encoded in a model called Populations-Order-Physiology (POP). We demonstrate the behavior and per
Protein quantification using different LC-MS techniques is becoming a standard practice. However, with a multitude of experimental setups to choose from, as well as a wide array of software solutions for subsequent data processing, it is non-trivial to select the most appropriate workflow for a given biological question. In this review, we highlight different issues that need to be addressed by so
Artificial neural network (ANN) ensembles have long suffered from a lack of interpretability. This has severely limited the practical usability of ANNs in settings where an erroneous decision can be disastrous. Several attempts have been made to alleviate this problem. Many of them are based on decomposing the decision boundary of the ANN into a set of rules. We explore and compare a set of new me
Many bird species migrate long distances without any food intake and must optimize storage of energy with respect to minimization of aerodynamic drag. To contribute to the understanding of this issue, we investigated, by magnetic resonance imaging (MRI), spatial distributions of body fat during the accumulation process before migration. We collected data from 12 Lesser Whitethroats (Sylvia curruca
Fuel ethanol production from lignocellulosic materials is at a level where commercial biofuel production is becoming a reality. The solubilization of the hemicellulose fraction in lignocellulosic-based feedstocks results in a large variety of sugar mixtures including xylose. However, allowing xylose fermentation in yeast that normally is used for fuel ethanol production requires genetic engineerin
In this study linear free energy relationships (LFER) are applied to the relaxation of core-excited states in aliphatic CH3X compounds. There are at least two valence orbitals involved in Auger decay following C-CH3 1s -> sigma*(C-X) excitation, which may as well be localized on the substituents in this series. Therefore, the observed property cannot be strictly attached to the so-called reaction
Kidney disease is a growing problem in the whole world. It is important to find these patients in an early state of the disease because then they can be treated and dialysis treatment can be avoided. To measure the glomerular filtration rate (GFR) an invasive technigue is used. In this thesis an equation to estimate GFR (eGFR) by drawing a blood sample and measure the concentration of cystatin C i
The current study evaluated amyloid-beta oligomers (A beta o) in cerebrospinal fluid as a clinical biomarker for Alzheimer's disease (AD). We developed a highly sensitive A beta o ELISA using the same N-terminal monoclonal antibody (82E1) for capture and detection. CSF samples from patients with AD, mild cognitive impairment (MCI), and healthy controls were examined. The assay was specific for oli
