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The southern Peruvian coastal desert around Palpa, southern Peru (14.5 degrees S) is currently characterized by hyper-arid conditions. However, the presence of two species of molluscs (Scutalus, Pupoides) and desert-loess deposits indicates the past development of semi-desert and grassland ecosystems caused by a displacement of the eastern desert margin due to hydrological changes. Radiocarbon dat
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
After further laboratory and field studies we have now used the previous and new findings to create a model for CO₂-absorption of concrete structures. Some knowledge is still missing and some results are still not fully understood. In those cases we have done our best to base the model on reasonable assumptions, from what could be expected from some new literature that has been studied.
De senaste åren har beskattning av den digitala ekonomin hamnat i focus. Det har gett upphov till att bl.a. OECD och EU har kommit med förslag på hur man ska kunna lösa detta dilemma. Traditionellt blir ett företag beskattat i den stat där detta har hemvist eller i den stat där företaget har ett fast driftställe för vilket det är angivet flera olika anknytningspunkter. Dessa anknytningsfaktorer byIn the last couple of years, taxation of the digital economy has become a subject that is on everybody’s mind. This has given rise to attempts from OECD and EU, amongst others, to solve this dilemma. For a company to be taxed in a state it must be a resident in that state or be attributed a permanent establishment that requires that the company has a physical presence in the state. This makes taxi
This master’s thesis is written for Tetra Pak with the aim to investigate if pitting corrosion inhibition can be detected for Stainless Steel 316L in contact with dairy products in an experimental setup. The aim was also to continue developing a corrosion test method to facilitate for material selection of food pro- cessing equipment in order to reduce the extent of detrimental pitting corrosion.
Algae blooms, induced by eutrophication, have been an increasingly prevalent environmental concern in the Baltic Sea since the 1970s, causing ecosystem degradation and hypoxia in bottom layers. One predominant harmful algae bloom-forming species in the Baltic Sea is the cyanobacteria Nodularia spumigena. N. spumigena produces hepatotoxin nodularin and is a diazotrophic alga; hence, it should be
This thesis is about European integration, reflected in the problem representations made by the European Union concerning asylum from the Dublin III Regulation (2013) and the Asylum and Migration Management Regulation (2020). To uncover the problem representation, Carol Bacchi's ‘What is the Problem represented to be’ has been adopted as the primary method, followed by a descriptive/comparativ
This research provides an overview of some of the frequently occurring themes in discussion of academic criticism toward child sponsorship with Swedish sponsorship staff. The study aims to provide a deeper understanding of child sponsorship, their purpose, and critique, than the one that can be draw from the existing literature which remains largely detached to the perspectives of the people on th
Biotin is an essential co-factor in various metabolic processes and is crucial for the growth and maintenance of living organisms. The market need for biotin is multifaceted and driven by its importance in human health, beauty and cosmetics applications, pharmaceuticals, animal nutrition, and other industries. Current methods of industrial biotin production are unsustainable and generate environme
The main goal of this thesis is to determine to what degree can there be observed indications for an overvaluation of Internet companies, which in turn may lead to the next asset price bubble in the Internet industry. By conducting an ex-ante analysis, the current study sets out to add additional knowledge in regards to whether and how well the emergence of a bubble can be determined in advance. T
Motivated by the increasing importance of today’s environmental issues as well as by the increasing concerns related to energy use, the study is intended to perform an energy intensity decomposition in order to analyze the effects of structural and technical changes on the energy patterns and in specific on the energy intensity of ten major developing countries in Asia and in Latin America. The ma
Abstract Background and Purpose: Members of the Millennial Generation are stereotypically described as job-hoppers, who tend to frequently change jobs after approximately 16 months of employment. This study aims to shed light on the retention management of Millennials in relation to the importance of 360-degree feedback. Focusing on the Millennial Generation, the following two research questions
The discovery of the Higgs boson h in 2012 further confirmed the remarkable accuracy of the Standard Model (SM). Despite this, some compelling excesses in multi-lepton final states were recorded in both major runs of the Large Hadron Collider (LHC). The excesses can be explained by the introduction of a model where a heavy boson X decays into a SM Higgs boson h and a singlet scalar S with Higgs-li
The purpose of this study is to investigate the relationship between the brand image of an incumbent manufacturer and the purchase intention for a brand extension characterized by a disruptive innovation, and to assess the effects of a sub-brand strategy. This study involves inferential survey research with a conclusive and descriptive nature. Data has been collected through a cross-sectional desi
Studien i fråga hade som huvudsyfte att undersöka moralisk stress hos rekryterare på rekryterings- och bemanningsföretag i privat verksamhet i Sverige. Vidare syfte var att undersöka dilemman av fyra andra psykologiska faktorer kopplat till arbetet som är relevanta för moralisk stress: kognition, emotion, kontroll, samt stressreaktioner. För moralisk stress och samtliga faktorer undersöktes skillnThe study aimed at examining recruiter’s experience of moral stress at recruiting and staffing companies in Sweden. Further purpose was to investigate dilemmas of four other psychological factors related to work, relevant for moral stress: cognition, emotion, control, and stress reactions. For moral stress and all other factors, differences based on sexes and work experience were investigated. An
Mango production plays a vital role in rural livelihoods in Mozambique, yet post-harvest losses remain high, ranging from 25% to over 50%, due to inadequate preservation methods. Improved solar drying technologies offer a sustainable solution by extending shelf life and enhancing product quality. However, their adoption among smallholder mango farmers remains limited. This study investigates the k
