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The aim of this thesis is to develop statistical models to reconstruct past land cover composition and human land use based on fossil pollen records over Europe for different time periods over the past 6000 years. Accurate maps of past land cover and human land use are needed when studying the interaction between climate and land surface, and the effects of human land use on past climate. Existing

Agricultural intensification and the subsequent fragmentation of semi-natural habitats severely restrict pollinator and pollen movement threatening both pollinator and plant species. Linear landscape elements such as hedgerows are planted for agricultural and conservation purposes to increase the resource availability and habitat connectivity supporting populations of beneficial organisms such as

In this study, a phosphorus (P) module containing the biogeochemical P cycle has been developed and integrated into the forest ecosystem model ForSAFE. The model was able to adequately reproduce the measured soil water chemistry, tree biomass (wood and foliage), and the biomass nutrient concentrations at a spruce site in southern Sweden. Both model and measurements indicated that the site showed s

In this paper we construct a hierarchical model for spatial compositional data which is used to reconstruct past land-cover compositions (in terms of coniferous forest, broadleaved forest, and unforested/open land) for five time periods during the past 6000 years over Europe. The model consists of a Gaussian Markov Random Field (GMRF) with Dirichlet observations. A block updated Markov chain Monte

Popular Abstract in English Organic synthesis has been defined as the “intentional construction of molecules by chemical means”1 and is often regarded to have commenced with Wöhler’s preparation of urea in 1828.2 Today, the influence of organic synthesis reaches far beyond the domain of chemistry, touching upon fields such as biology, nanotechnology, material science, and medicine. It has thus supThis thesis deals with the development of new reaction methodology for stereoselective synthesis, as well as total synthesis of natural products and investigations of the stereochemical outcome in the Mukaiyama aldol reaction. Chapter 2 describes efforts made towards the total synthesis of the oxindole natural products perophoramidine and the communesin. The first part of this chapter aims to de

Popular Abstract in English Every year, Sweden produces 1.5 million tons of incineration residues from waste to energy plants. Among these residues bottom ash(BA) due to its large volume and good geotechnical quality can be reused as an alternative construction material. However there are some negative environmental impacts of this practice such as leaching of salts and metals to soils and groundwEvery year, Sweden produces 1.5 million tons of incineration residues from waste to energy plants. Among these residues bottom ash(BA) due to its large volume and good geotechnical quality can be reused as an alternative construction material. However there are some negative environmental impacts of this practice such as leaching of salts and metals to soils and groundwater. Environmental processe

06-methylated guanine dinucleotides were used to study the influence of hydrogen bonding on the specific binding of the antitumor drug cDDP, cis-PtCl2(NH3)2, to DNA. In this interaction, the guanine-06 site appears to be important in explaining the preference for a pGpG-N7(1),N7(2) chelate, which results from H-bridge formation with the ammine ligand of cDDP. Guanine-06 methylated dinucleotides an06-methylated guanine dinucleotides were used to study the influence of hydrogen bonding on the specific binding of the antitumor drug cDDP, cis-PtCl2(NH3)2, to DNA. In this interaction, the guanine-06 site appears to be important in explaining the preference for a pGpG-N7(1),N7(2) chelate, which results from H-bridge formation with the ammine ligand of cDDP.Guanine-06 methylated dinucleotides and

The influence of aerosols, both natural and anthropogenic, remains a major area of uncertainty when predicting the properties and behaviour of clouds and their influence on climate. In an attempt to better understand warm cloud formation in a tropical marine environment, a period of intensive measurements took place in December 2004 in Puerto Rico, using some of the latest developments in online i

Context: The global demand for food is expected to continue increasing for decades, which may drive both agricultural expansion and intensification. The associated environmental impacts are potentially considerable but will depend on how the agricultural sector develops. Currently, there are contrasting regional developments in agriculture; expansion and/or intensification in some regions and aban

The EU's Common Agricultural Policy (CAP) has had limited success in mitigating agriculture's environmental degradation. In this paper we simulate the impacts of the 2013 “greening” reform on biodiversity and ecosystem services in environmentally contrasting landscapes. We do this by integrating an agent-based model of structural change with spatial ecological production functions, and show that t

Amazonian ecosystems range from rainforest to open dryland vegetation, with a following decrease in biomass along the moisture gradient. Biomass can vary greatly at the ecological transition zone between grass dominated savannahs and the forest. It is not well understood if the transition zone could expand under climate change, and thereby reduce ecosystem stability and carbon storage in biomass.

Adults with congenital heart disease (ACHD) are a completely new and rapidly growing specialty comprising patients who require specialist knowledge regarding their care and treatment. Challenges involve diagnostics and treatment as studies are scarce and include small and heterogenous study populations.The first aim with this thesis was to evaluate the relationship between the systemic right ventr

This paper explores the relationship between democratization and economic redistribution using case study analysis applied to Sweden and Brazil. We find that democratization is intimately connected to redistribution through the welfare state, but as an event in itself is neither a necessary nor a sufficient cause of redistributive reforms. Democratization is not strictly necessary, because in antiThis paper explores the relationship between democratization and economic redistribution using case study analysis applied to Sweden and Brazil. We find that democratization is intimately connected to redistribution through the welfare state, but as an event in itself is neither a necessary nor a sufficient cause of redistributive reforms. Democratization is not strictly necessary, because in anti

Collective harm cases are situations in which things will become worse if enough acts of a certain kind are performed but no single act of the relevant kind will make a difference to the outcome. The inefficacy argument says that since one such act does not make a difference to the outcome, you have no outcome-related reason to refrain from acting in this way. If this argument holds, you have no cCollective harm cases are situations in which things will become worse if enough acts of a certain kind are performed but no single act of the relevant kind will make a difference to the outcome. The inefficacy argument says that since one such act does not make a difference to the outcome, you have no outcome-related reason to refrain from acting in this way. If this argument holds, you have no c

Gardeners have always used plants of different origins, moving them around to new environments, working hard to make the plants survive and thrive under new conditions. Certain plant varieties have proved to be particularly vital, have a long history as cultivars, and are today understood as heritage plants. Many have spread over centuries and are today regarded as ‘belonging’ and as more or less Gardeners have always used plants of different origins, moving them around to new environments, working hard to make the plants survive and thrive under new conditions. Certain plant varieties have proved to be particularly vital, have a long history as cultivars, and are today understood as heritage plants. Many have spread over centuries and are today regarded as ‘belonging’ and as more or less