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Planetary migration is a major challenge for planet-formation theories. The speed of type-I migration is proportional to the mass of a protoplanet, while the final decade of growth of a pebble-accreting planetary core takes place at a rate that scales with the mass to the two-thirds power. This results in planetary growth tracks (i.e., the evolution of the mass of a protoplanet versus its distanc
The compressibility of a protein relates to its stability, flexibility, and hydrophobic interactions, but the measurement, interpretation, and computation of this important thermodynamic parameter present technical and conceptual challenges. Here, we present a theoretical analysis of protein compressibility and apply it to molecular dynamics simulations of four globular proteins. Using additively
The global movement of bees for agricultural pollination services can affect local pollinator populations via hybridization. When commercial bumblebees are of the same species but of different geographic origin, intraspecific hybridization may result in beneficial integration of new genetic variation, or alternatively may disrupt locally adapted gene complexes. However, neither the existence nor t
Land biosphere processes are of central importance to the climate system. Specifically, ecosystems interact with the atmosphere through a variety of feedback loops that modulate energy, water, and CO2 fluxes between the land surface and the atmosphere across a wide range of temporal and spatial scales. Human land use and land cover modification add a further level of complexity to land-atmosphere
The MAX IV Laboratory in Lund, Sweden, houses two electron storage rings operating at the energies 1.5, and 3 GeV. Both of these produce high-brilliance synchrotron radiation for beamline users. While the 1.5 GeV storage ring is a conventional third generation storage ring, employing a double-bend achromat structure, the MAX IV 3 GeV ring is the first realised fourth generation synchrotron. This r
Many cell functions rely on the ability of microtubules to self-organize as complex networks. In plants, cortical microtubules are essential to determine cell shape as they guide the deposition of cellulose microfibrils, and thus control mechanical anisotropy in the cell wall. Here we analyze how, in turn, cell shape may influence microtubule behavior. Using a computational model of microtubules e
Increased blood lipid levels are heritable risk factors of cardiovascular disease with varied prevalence worldwide owing to different dietary patterns and medication use1. Despite advances in prevention and treatment, in particular through reducing low-density lipoprotein cholesterol levels2, heart disease remains the leading cause of death worldwide3. Genome-wideassociation studies (GWAS) of bloo
This qualitative case study provides a communication-driven perspective into the functioning of teleworking in the post-Covid Danish work society. Teleworking, performing office work outside of the conventional office space by using ICTs, became part of the modern-day work arrangement of many employees, mainly due to the severe effects of the Covid-19 pandemic on the world economy. This study’s ai
Even though the first coronavirus pandemic was registered in 1965, SARS-CoV-2 was better acknowledged when it caused the worldwide pandemic in 2019 in which millions of individuals lost their lives. Due to its facile way of spreading from one individual to another, the number of infected cases has gone up to more than 750 million to this day. DENV is a very dangerous virus due to its asymptomatic
This thesis evaluated the performance of the water balance model BROOK90 for an even aged spruce forest in southern Sweden. The water balance of the forest was modelled from 1950 onwards to find periods and patterns of drought. Moreover, the impact of climate change as well as thinning as a strategy to reduce drought stress on the water balance were evaluated. Hyltemossa, a managed Norway spruce f
Den svenska demografin förändras och antalet invånare äldre än 64 år väntas öka de kommande åren. Dessutom har urbaniseringen förändrats något, inte minst efter pandemin, då utflyttningen från storstäder till mindre orter ökat. Ökad flexibilitet i många yrken och delvis ändrade levnadsmönster har således resulterat i ett delvis minskat lägesberoende. Sammantaget står fastighetsmarknaden inför föräThe purpose of this study is to investigate what urban life really is and if (and in that case also how) urban life may be created and affected, primarily during the asset management phase. The study is conducted from the landowner’s perspective. Furthermore, the study aims at exploring what consequences and impact urban life has on the attractiveness and value of a place. The study is based on a
Sverige har ett nationellt mål om att minska utsläppen av växthusgaser från inrikes transporter med 70% fram till år 2030. För att minska dessa utsläpp beslöt Sverige år 2017 om den så kallade reduktionsplikten, som innefattar ett krav på att successivt öka inblandning av biodrivmedel i diesel och bensin. Stigande drivmedelspriser har sen dess fått flera partier att vända sig mot reduktionspliThe Greenhouse Gas Reduction Mandate (GGRM, reduktionsplikten) is Swedish legislation focused on reducing carbon emissions by mandating that the emissions of certain fuels are reduced by a specified percentage, that percentage increasing each year. This paper investigates the rationale behind a political drive to decrease the GGRM, the cost-effectiveness of the GGRM, and the consequences of t
A system for detecting protein-protein interaction using a bacterial two-hybrid approach, a heterologous expression system in Escherichia coli strain based on adenylate cyclase enzyme reconstitution, was invented twenty years ago (Karimova, et al., 1998, PNAS, 95:5752). Before inventing this system, yeast two-hybrid technology was used for screening putative interaction between either two proteins
Att utvärdera jordens hållfasthet inför byggande av hus, vägar och broar är en mycket viktig uppgift. I Skåne består jorden till stora delar av lermorän, vilket är en jord som innehåller mycket lera, men också sand, grus och sten i olika storlekar. Denna typ av jord försvårar många gånger arbetet med att utvärdera markens egenskaper. Dock har nya metoder testats internationellt, i ett första steg The undrained shear strength of cohesive soils is an important parameter to assess in geotechnical investigations. It is normally evaluated with the cone penetration test (CPT) but problems with penetrating coarse, heterogeneous materials that is also hard, such as clay till, have pointed the interest towards other possible in-situ methods. This has led to studies assessing the possibility to eval
This study analysed 80 different articles from two Swedish newspapers: the evening paper Expressen and morning paper Dagens Nyheter, evenly divided between articles found with the search words drug addiction (drogmissbruk) and alcohol addiction (alkoholmissbruk). All of them published during 2018. By using a quantitative method to collect and code data and a social constructive and a political med
Djungeln av avloppsreningslösningar Avloppsvatten uppkommer från alla typer av verksamheter, ändå är det en fråga som som är problematisk för många. Även för ett mindre bryggeri innebär omhändertagandet av avloppsvatten många frågetecken. Vad är det egentligen som avgör vilken avloppsvattenlösning som passar för den individuella verksamheten? Intresset för öl har vuxit explosionsartat i Sverige ocThe number of microbreweries in Sweden has grown a lot since 2009, from about 30 to 240 breweries. In the production of beer, wastewater is also produced which must be taken care of to avoid inconvenience to people and the environment. How the wastewater should be treated has been a problem for a couple of breweries. This study is based on a case study, Remmarlöv Gårdsbryggeri, that needs a new wa
The aim of this paper is to investigate the exposure of Fair Trade (FT) importers in Germany, operating based on the principles of the World Fair Trade Organization (WFTO), to foreign exchange (FX) rate risk in the light of the current depreciation of the Euro. The ongoing high volatility of the Euro exchange rate strongly affects Fair Trade companies that import products mostly from developing co
Hur bör de senaste decenniernas utveckling inom IT och pedagogik påverka utformningen av nya lärandemiljöer? Kan skolarkitektur bidra till att främja god fysisk och psykisk hälsa? Arbetssätt och målsättningar har ändrats mycket inom den svenska skolan under de senaste decennierna. Informationsteknologi har i grunden ändrat tillgängligheten till information och påverkat hur vi både arbetar och koHow should the technological and pedagogical development during the last few decades affect the design of new schools? Can school architecture contribute to good physical and mental health in young teenagers? The way of working and targets for what the students should achieve have changed a lot in Sweden during the last few decades. Information technology has fundamentally changed the ease of ac
Ett flertal studier har funnit ett samband mellan Mg/Ca i foraminiferer och olika miljö-faktorer såsom temperatur (e.g Billups and Schrag, 2002; Dissard et al., 2010; Ferguson et al., 2008). Detta har möjliggjort paleomiljörekonstruktioner baserade på Mg/Ca i foraminiferer. Detta examensarbete har haft som mål att undersöka påverkan av temperatur och salinitet på Mg/Ca i tre arter och ett släkte aMultiple studies have found a link between Mg/Ca in foraminifera and various environmental factors (e.g Billups and Schrag, 2002; Dissard et al., 2010; Ferguson et al., 2008). This has allowed for paleoenvi-ronmental reconstructions based on Mg/Ca in foraminifera to be made. My thesis has intended to find the influence of temperature and salinity on Mg/Ca in three species and one benthic Genus of
Abstract We live in a world today that is characterized by the Internet. We can get hold of people on the other side of the globe whenever we want and we can purchase what ever we want, from who ever we want, anytime we want. This development has made it important to find systems of dealing with the payment in a safe and secure way, both for a private person as well as for a company, when you do t
