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Popular Abstract in Swedish Den globala landbaserade kolcykeln reglerar mängden växthusgaser i atmosfären. För närvarande tas varje år 25-30% av våra utsläpp upp av de landbaserade ekosystemen vilket är en viktig ekosystemtjänst som kanske inte kommer att bestå i längden. Upptagskapaciteten av både hav och landbaserade ekosystem tenderar att försvagas av global uppvärmning. Detta leder till att enThe global terrestrial carbon cycle plays a pivotal role in regulating the atmospheric composition of greenhouse gases. Currently it is responsible for removing 25-30% of our emissions every year, an important ecosystem service that may not persist in the long term. Global warming tends to decrease the CO2 sink capacity of the world’s oceans and ecosystems leading to a larger fraction of our emiss

The evolution of char porous structure can affect the gasification rate of biomass char. A model based on the classical capillary pores is developed taking into account different conversion rates for pores having different radii. The contribution of different pores with different radii is taken into account using an effectiveness factor presented for each pore radius. As the char conversion procee

In this chapter, the modelling framework presented in Chap. 5 will be used to perform vulnerability analyses from three perspectives: global vulnerability, critical components, and geographical vulnerability. Two case studies of two real-world interdependent infrastructure systems are performed; one focusing on an electric distribution system coupled with a water distribution system, and one focus

Are there such things as moral, rights and an inner sense of justice? Do they origin from God or are they something given by nature? If there are such things, should they be a part of the legal system? This essay has drawn its inspiration from this kind of thoughts and how they have been handled through history. The structure of the essay is two-folded. Part one is a historical review of the eme

Titel: Intäktsoptimering – om svenska hotells användning av Internet som boknings- och distributionskanal Nivå: Magisteruppsats, Magisterprogrammet Service Management, Lunds Universitet Campus Helsingborg Författare: Ann-Sofie Palm och Magnus Östman Handledare: Gustav Kastberg och Ola Mattisson Problemformulering: Den tekniska utvecklingen har gjort Internet till ett betydelsefullt redskap för hot

Det senaste decenniet har flera allvarliga perioder och händelser av extremväder drabbat Europa. Tidigare studier visar att dessa händelser och perioder har ökat i antal och i intensitet och en fortsatt intensifiering är förväntad i framtiden. Extremväder såsom värmeböljor, torka och floder kan påverka vattenkvalitén i våra floder på olika sätt. Det är viktigt då flodernas ekologi är grundläggandeEurope has experienced several climate extremes during the past decades. These extreme events have increased in number and intensity and are projected to further intensify. Previous studies show that heatwaves, drought, and flood can have an impact on water quality in several ways. Drought can cause reduced dilution of nutrients, limiting oxygen availability as a result of increased water temperat

Countries differ in the volumes of their prison population. This does not seem to simply be a result of differences in levels of crime, as prison populations does not appear to correspond with available indicators of crime, neither within nor between countries. Thus, other explanatory models should be available. Previously, the importance of economic, political, and cultural aspects has been studi

The dissertation is about career in working life – not career solely in the sense of climbing upwards in the organizational hierarchy to management level, but career as the movement that individuals or groups make over time through working life. The focus is on social workers and their professional field. The overall aim is to describe and analyse social workers’ career patterns and careers at the

Årets rapport innehåller totalt 15 rekommendationer inom tre områden: Kommunen arbetssätt, Naturbaserade lösningar och att Säkra energisystemet. Här presenteras förslagen i sammanfattad form och de mer detaljerade förslagen återfinns under respektive område i rapporten.1. En mer effektiv klimatanpassningRådet föreslår att kommunen bör utveckla arbetssätt för att främja en mer effektiv klimatanpass

Noninvasive imaging methods are sought to objectively predict early response to therapy for high-grade glioma tumors. Quantitative metrics derived from diffusion-weighted imaging, such as apparent diffusion coefficient (ADC), have previously shown promise when used in combination with voxel-based analysis reflecting regional changes. The functional diffusion mapping (fDM) metric is hypothesized to

Denna avhandling undersöker de politiska orsakerna till reformer av subventioner av fossila bränslen i OECD-länderna mellan 2009 och 2023. Trots att subventioner för fossila bränslen är allmänt erkända som ekonomiskt ineffektiva och miljöskadliga, är de fortfarande djupt rotade, där OECD-länderna tillsammans upprätthåller ett årligt stöd på cirka 100 miljarder US-dollar. Avhandlingen behandlar fråThis dissertation investigates the political determinants of fossil fuel subsidy reform in OECD countries between 2009 and 2023. Despite widespread recognition of their economic inefficiency and environmental harm, fossil fuel subsidies remain entrenched, with OECD countries collectively sustaining around USD 100 billion in annual support. The research addresses why some governments successfully r

Popular Abstract in Swedish Projektioner om framtida klimat i Arktis och subarktis tyder på att drastiska förändrinar väntar regionen under det närmaste århundradet. Inte bara temperaturen spås öka utan även nederbörd, och då framför allt nederbörden under vinterhalvåret. Dessa förändringar kommer sannolikt att ha stor inverkan på miljön i Arktis och subarktis, och stora forksningsansträngningar hClimate projections indicate that Arctic and sub-Arctic regions are facing a significant change in climate during the 21st century. With warmer temperatures precipitation is also expected to increase, and in particular winter precipitation. These changes are likely to have large impacts on the Arctic and subarctic environment, and extensive research has focused on ecosystem-climate interactions in

Portfolio optimization involves a tradeoff between maximizing expected returnand minimizing risk. In practice, useful formulations also include various costs and constraints that regularize the problem and reduce the risk due to estimation errors, resulting in solutions that depend on a number of hyperparameters. As the number of hyperparameters grows, selecting their value becomes increasingly imPortfolio selection involves a trade-off between maximizing expected return and minimizing risk. In practice, useful formulations also include various costs and constraints that regularize the problem and reduce the risk due to estimation errors, resulting in solutions that depend on a number of hyperparameters. As the number of hyperparameters grows, selecting their value becomes increasingly imp

Phasor measurement signals are used as only input to a wide-area power system stabilizer to increase interarea mode damping of the Icelandic system. Modal analysis and time simulations of a detailed model show that frequency difference as PSS input gives a damping improvement that is robust to drastic changes in system topology. Field data from phasor measurement units indicate high signal quality

Savanner är ett landskap med både träd och gräs som skapar en miljö som varken är skog eller gräsmark. Savanner tar upp cirka en sjättedel av världens totala landyta och de har på grund av detta en stor betydelse för den globala kolbalansen. De flesta savanner har två distinkta säsonger, en regnperiod då vegetationen grönskar samt en period med torka utan nederbörd. Detta gör att förändringar i deSavannahs are land areas where grass and trees co-exists to create a landscape that is neither a grassland nor a forest. It is estimated that savannahs cover approximately one sixth of the global land surface. They also play an important role in the global carbon cycle due to their total size. Most savannahs are characterized with two distinct seasons, one dry season and one wet season where a maj

Världens städer växer i snabb takt. Denna avhandling undersöker välbefinnandet och sårbarheten hos befolkningen i stadsnära, eller periurbana, låginkomstområden i och runt Bogotá, Colombia, med målet att öka förståelsen för hur sociala och miljömässiga förutsättningar påverkas av stadsutbredning och förtätning.För detta syfte har jag utvecklat en typologi för periurbana bosättningar som består av The world is rapidly urbanizing. To contribute to the understanding of the socio-environmental changes brought about by urban sprawl and densification, this thesis examines wellbeing and vulnerability in low-income peri-urban areas in and around Bogotá, Colombia. For that purpose, I develop a typology of peri-urban settlements that includes four main settlement classifications: agriculture-based,