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Due to high installation costs and relatively low output, the active use of solar energy is limited. The output from a collector can be improved e.g. by using a selective absorber, AR-treated cover glass or transparent insulation. The output/cost ratio can also be improved by the use of reflectors. The performance of a collector depends highly on the incidence angle dependent optical efficiency. I

We consider the problem of designing demodulators for channels with memory that use reduced-size trellis descriptions for the received signal. We assume an overall iterative receiver, and for the parts of the signal not covered by the trellis description, we use interference cancellation based on the soft information provided by the outer decoder. In order to reach a trellis description, a linear

The mechanisms responsible for the transfer of energy and water within the climate system are under worldwide investigation within the framework of the Global Energy and Water Cycle Experiment (GEWEX) to improve the predictability of natural and man-made climate changes at short and long ranges and their impact on water resources. Five continental-scale experiments have been established within GEW

A new method for absorbed-dose assessment in radionuclide therapy is presented in this paper. The method is based on activity quantification by the conjugate-view methodology, applied to serial whole-body, anterior-posterior, scintillation-camera scans. The quantification method is an extension of previous studies, and includes separate corrections for attenuation, scatter, and overlapping organs.

Gaussian wave models have been successfully used since the early 1950s to describe the development of random sea waves, particularly as input to dynamic simulation of the safety of ships and offshore structures. A drawback of the Gaussian model is that it produces stochastically symmetric waves, which is an unrealistic feature and can lead to unconservative safety estimates. The Gaussian model des

Vertebrates have evolved an adaptive immune system in addition to the ancestral innate immune system. It is often assumed that a trade-off between costs and benefits of defence governs the evolution of immunological defence, but the costs and benefits specific to the adaptive immune system are poorly known. We used genetically engineered mice lacking lymphocytes (i.e. mice without adaptive, but wi

The purpose of this study was to understand the type of disciplining and normalizing that includes in the two measures the Development Guarantee and the Employment Guarantee for youth. This study is based on a qualitative content analysis with inspiration from hermeneutics where discipline and normalizing represent the theoretical starting points. Five assessments from governmental agencies regard

Stadsmiljö skiljer sig från det ursprungliga landskapet, som till stor del har lämnats orörd av människan. När mer och mer mark används till att bygga städer eller för att odla mat kan det skapa problem för pollinatörer, då de är anpassade till den naturliga miljön. Pollinatörerna kan däremot ofta överleva inuti städer i parker, rabatter och trädgårdar. Det är viktigt att bevara pollinatörer, då o

The purpose of this thesis is to provide the reader with knowledge of how the beauty industry is affected by digitalization, especially concerning marketing strategies and consumption practices. This thesis performs a case study of the company Glossier in order to examine what strategies they use to market and sell their products. Glossier launched in 2014 as an ecommerce based beauty company. Thi

A qualitative case study set in Colombo, Sri Lanka focusing on women’s representation in local governance. The essay follows the aftermath of the country’s newly implemented electoral reform, which since 2018 resulted in a mixed- member-proportional electoral system with a gender quota. Throughout an extensive interview process with local politicians and experts alike, six barriers were identified

Predatory pricing poses a dilemma which perplexed and intrigued the competition community for many years. It is one of the most discussed topics in the area of antitrust economics, as the critical issue is to meld economic insights with sound legal rules. Despite the energy devoted to the subject by many distinguished observers from the economic and legal professions and their attempts to find pro

A combination of theoretical predictions and isotopic equilibration experiments using the three-isotope method have been performed to assess Si isotope fractionation among minerals, and aqueous species in the presence of dissolved catechol. Aqueous Si in abiotic ambient temperature aqueous solutions is dominated by the IV-coordinated H4SiO04species, but the presence of aqueous catechol provokes th

The 90 kDa ribosomal S6 kinase (RSK) family of proteins is a group of highly conserved Ser/Thr kinases. They are downstream effectors of the Ras/ERK/MAPK signaling cascade. ERK1/2 activation directly results in the phosphorylation of RSKs, which further, through interaction with a variety of different downstream substrates, activate various signaling events. In this context, they have been shown t