Filtyp
In this study, the spatial representativeness of eddy covariance (EC) methane (CH4) measurements was examined by comparing parallel CH4 fluxes from three short (6 m) towers separated by a few kilometres and from two higher levels (20 m and 60 m) at one location. The measurement campaign was held on an intensively managed grassland on peat soil in the Netherlands. The land use and land cover types
Objective To investigate the 2-year clinical and radiological outcomes of patients with early rheumatoid arthritis (RA; symptom duration <1 year) who had initially responded well to methotrexate monotherapy. Methods In the SWEFOT trial, all 487 patients started methotrexate (target dose 20 mg/week). After 3-4 months, 147 had low disease activity, 28-joint based disease activity score (DAS28) <= 3.
The Swedish Social Democratic Party promoted open borders before the election in 2014, however, implemented restrictive migration policies when in office. The purpose of this paper is to explain why they have changed their migrations policies based on Gunnar Sjöblom’s theory of arena competition on how political parties behave in multiparty systems. According to the theory, decisions-makers of po
Energy and energy security have in recent years made it to the top of political agendas across Europe. In this context, this thesis examines the relationship between the securitization of energy and the creation of the Energy Union, which has been described as one of the most ambitious EU projects since the creation of the European Coal and Steel Community in 1951. Using a combination of securitiz
The fight against climate change has reached a crossroads, necessitating critical assessment of the means designed to mitigate the ongoing crisis. This thesis examines the impact of the Market Stability Reserve (MSR) on installation-level emissions and emissions intensities in Norway. The MSR, introduced in 2019, was designed to address the surplus of emissions allowances in the EU Emissions Tradi
Studiens syfte var att nå en fördjupad förståelse av småbarnsföräldrars användande av interaktiva skärmar när de umgås med sina barn; vilken mening användandet har för individen och vilka följder detta kan få för relationen mellan förälder och barn. Semistrukturerade intervjuer genomfördes med åtta småbarnsföräldrar som sällan, ibland eller ofta använde sig av interaktiva skärmar. Tematisk analys The aim of this study was to gain a greater understanding of the usage of interactive screens by parents of young children, whilst interacting with their children; what role does the usage of interactive screens play for the individual and how does the usage affect the relationship between parent and child. Semi-structured interviews were conducted with eight parents of young children who rarely,
Increasing loading of terrestrially derived dissolved organic matter tends to enhance bacterioplankton respiration (BR) in boreal estuaries, but knowledge on the mechanisms behind this effect is not complete. We determined the stable isotopic signature of the reactive estuarine dissolved organic carbon (DOC) in the Öre estuary (Baltic Sea) by using the Keeling plot method. The δ13C ratio of the es
Isoprene is a highly reactive volatile organic compound emitted by vegetation, known to be a precursor of secondary organic aerosols and to enhance tropospheric ozone formation under polluted conditions. Isoprene emissions respond strongly to changes in meteorological parameters such as temperature and solar radiation. In addition, the increasing CO2 concentration has a dual effect, as it causes b
Meteorological extreme events such as El Niño events are expected to affect tropical forest net primary production (NPP) and woody growth, but there has been no large-scale empirical validation of this expectation. We collected a large high-temporal resolution dataset (for 1-13 years depending upon location) of more than 172 000 stem growth measurements using dendrometer bands from across 14 regio
Monitoring soil moisture at the Earth'surface is of great importance for drought early warnings. Spaceborne remote sensing is a keystone in monitoring at continental scale, as satellites can make observations of locations which are scarcely monitored by ground-based techniques. In recent years, several soil moisture products for continental scale monitoring became available from the main space age
This study is based on the analysis of field-measured nitrous oxide (N2 O) emissions from a Sahelian semi-arid grassland site in Senegal (Dahra), tropical humid agricultural plots in Kenya (Mbita region) and simulations using a 1D model designed for semi arid ecosystems in Dahra. This study aims at improving present knowledge and inventories of N2 O emissions from the African continent. N2 O emiss
Spatial downscaling is an effective way to obtain precipitation with sufficient spatial details. The performance of downscaling is typically determined by the empirical statistical relationships between precipitation and the used auxiliary variables. In this study, we conducted a comprehensive comparison of five empirical statistical methods for spatial downscaling of GPM IMERG V06B monthly and an
The demand of renewable energy has increased the interest in whole-tree harvesting. The sustainability of whole-tree harvesting after clear-cutting, from an acidification point of view, depends on two factors: the present acidification status and the further loss of buffering capacity at harvesting. The aims of this study were to investigate the relationship between these two factors at 26 sites a
Monitoring available feed for livestock is a key factor for developing pastoralism in the Sahel, and satellite images has proven useful in monitoring dry mass on large spatial scales. This approach requires field measurements of dry mass (herbaceous and woody plants) to calibrate such models based on Earth observation data. However, the need for representative field measurements can be a challenge
Soil microbes drive ecosystem function and play a critical role in how ecosystems respond to global change. Research surrounding soil microbial communities has rapidly increased in recent decades, and substantial data relating to phospholipid fatty acids (PLFAs) and potential enzyme activity have been collected and analysed. However, studies have mostly been restricted to local and regional scales
PowerPoint-presentation Some reflections on the Global Goals going forward Prof. Emily Boyd, LUCSUS Sustainability Talks Date: 9th of March Time: 8.30-10.00 Venue: Wrangel 1 World-class sustainability Centre - working for over 10 years on some of the most pressing global challenges facing humanity. Aim: to create a better and fairer world now and in the future. About LUCSUS This section of the tal
