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Results are presented of searches for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons in root s = 7 TeV proton-proton collisions at the Large Hadron Collider. Search strategies requiring lepton pairs with identical-sign or opposite-sign electric charges are described. In a data sample corresponding to an integr
To stay within our planet’s limits and reach the United Nation’s Sustainable Development Goals, there is an urgent need to rethink our current and dominant systems. This thesis focuses on the food system, in particular, and explores how an overarching turnaround in the way we produce and consume food has the potential to trigger and steer a greater transition towards sustainability. However, this
Background: Globalization is a phenomenon which has been around since the mid- 19th century, influencing companies to either expand existing markets or entering new markets, to seek new profits. For companies with a global supply chain, the total supply chain cost is a vital factor. It is of high importance to reduce the costs in the supply chain, as lower costs will increase the profit. The case
This paper aims to examine the arguments proposed by the Obama administration regarding a U.S. military intervention in Syria due to the use of chemical weapons by the Syrian regime in 2013. During his presidency, Obama stated that the He draws a ‘red line’ at the use of chemical weapons against civilians, but the threat proved to be empty a year later when thousands of people were killed in a che
A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02 fb(-1) of integrated luminosity collected by the ATLAS experiment from pp collisions at root s= 7 TeV. Events containing either four charged leptons (llll) or two charged leptons and two jets (lljj) are analyzed and found to be consistent with the Standard Model background expectation. Lowe
The study field of the thesis is regional integration in Africa. The focus is set on the African Union (AU) and its main programme for promoting democracy on the continent, the New Partnership for Africa´s Development (NEPAD). By applying two theories, one on democratization through regional organizations and the other on hidden agendas within them, the thesis makes an assessment on the work for d
A search is presented for direct top squark pair production using events with at least two leptons including a same-flavour opposite-sign pair with invariant mass consistent with the boson mass, jets tagged as originating from -quarks and missing transverse momentum. The analysis is performed with proton-proton collision data at collected with the ATLAS detector at the LHC in 2012 corresponding to
Objective. New proposed definitions of chronic kidney disease necessitate the development and use of simple and accurate methods for estimating glomerular filtration rate (GFR). Plasma cystatin C has been shown to be a more reliable GFR marker than creatinine and formulae for estimating GFR have been reported. The purpose of this study was to validate a cystatin C-based GFR prediction equation in
Background. Randomized trials have shown that icodextrin reduces the volume of extra-cellular fluid (ECFv) with variable effects on residual renal function. To explore this fluid shift and its possible mechanisms in more detail, prospectively collected data from one such trial, including measures of inflammation (C-reactive protein, tumor necrosis factor-a, albumin and low and high molecular weigh
The aim of this phenomenological study was to explore what role teachers at introductory programmes (SFI-schools) play in the integration of immigrants, how the teachers experience their work and what they feel about the situation in which their students, the immigrants, are. To what extent and in what way do the teachers contribute to facilitating the integration of the immigrant students? The s
The consumption of plastic bags is a global problem that leads to increased concentration of plastic in the world oceans. In 2014, annual consumption of plastic carrier bags amounted to around 100 billion in the EU, which corresponds to an average of about 200 bags per person per year, of which many plastic bags are used only once and/or end up as waste in nature. This thesis is a comparative case
The museum world is in a time of great change, many of the changes focus on the accessibility of museums. In Sweden these changes are becoming more apparent as the new museum law that has been passed advocates for equal museum experience for all visitors whether they have any for of impairment or not. To encourage this change a few older law and regulations that Swedish museums are also subject to
Klimatförändringen förväntas orsaka 20-25% kraftigare regnoväder i Sverige vilket, tillsammans med urbaniseringen, ökar sannolikheten för översvämningar i urbana områden. En översvämningen kan innebära stora materiella skador och kostnader för samhället. För att förebygga dessa behövs mer kunskap om vilka områden i staden som är mest utsatta. Information om var och när stora vattenmängder väntas kClimate change is expected to cause 20-25% heavier rainfall in Sweden which, in combination with the ongoing urbanization, increases the probability of flooding in urban areas. These floods may cause large infrastructural damage and economical costs. Therefore, adequate models for overland flow are needed to identify high-risk areas where mitigating actions should be performed. In this thesis a ne
The symbolic elite discourse on the safety and viability of using the insecticide DDT for combating malaria in Africa is marked by extreme dissonance. While some positions within the debate on using DDT for malaria prevention are quite nuanced, others are more extreme if not one-dimensional. The ones who tend to hold more nuanced or centrist positions on using DDT for controlling malaria are often
Roots play a key role in terrestrial carbon and water cycles, and therefore for the global climate system. They mediate plant evapotranspiration, influence photosynthetic processes and are responsible for atmospheric carbon transport into the pedosphere. Fine roots, in particular, are chiefly regulating water and nutrient uptake. Recent research has suggested that the representation of fine roots
This thesis examines the social unfolding of the recent deplatformization of the far-right extremes on Telegram. Leaving prior approaches to moderation behind, this study asks questions around how moderation imprints itself on the complex terrain of meaning and practice, interacts with intensified reflexiveness of the social agents, and leaves affected collectivities changed in unanticipated ways.
Rapid urban growth has brought along various social, economic, and environmental issues, including the expansion of informal settlements – deprived areas lacking proper housing, basic services, and safety. Informal areas, inequalities and exclusion are common features in Nairobi, where more than half of the population is residing in slums. Women are the most vulnerable in this context, struggling
In a changing world order, emerging middle powers from the global South may seek new positions in international societies. Using the United Nations as an international society, this thesis aims to investigate what roles the emerging middle powers, Brazil and South Africa, enact in pursuing permanent seats at the Security Council. This research conducts a qualitative text analysis using official da
