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A search for heavy Majorana neutrinos in scattering of same-sign W boson pairs in proton–proton collisions at s=13 TeV at the LHC is reported. The dataset used corresponds to an integrated luminosity of 140 fb−1, collected with the ATLAS detector during 2015–2018. The search is performed in final states including a same-sign ee or eμ pair and at least two jets with large invariant mass and a large
Objective: Survivors of childhood, adolescent, and young adult (CAYA) cancer have an increased risk of metabolic syndrome (MetS). MetS describes the clustering of cardiovascular risk factors including overweight or obesity, hypertension, (pre)diabetes, and dyslipidaemia. While associated cardiovascular sequelae can be serious, MetS is preventable, manageable, and potentially reversible with the ap
Background: Digital work can be cognitively challenging especially for people with cognitive difficulties. New occupational therapy interventions are needed to empower these persons to self-manage challenges in digital work and everyday life. To address this need, the internet-based intervention 'Strategies for Empowering Activities in Everyday Life' (SEE 2.0) was tested.Aim: To explore and descri
Introduction: Population-based registers provide an important source of real-world data. The growing number of large cohort studies using data from cancer registers makes validation of such registers important. The Swedish Quality Register of Gynecologic Cancer (SQRGC) is a nationwide population-based register containing data on patient and tumor characteristics, treatment, and follow-up. To ensur
A combination of searches for singly and doubly charged Higgs bosons, H± and H±±, produced via vector-boson fusion is performed using 140 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the Large Hadron Collider. Searches targeting decays to massive vector bosons in leptonic final states (electrons or muons) are considered. N
The results of a search for pair production of light top squarks are presented, using 4.7 fb(-1) of root s = 7 TeV proton-proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, mu), large missing transverse momentum, ligh
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
Popular Abstract in Swedish Akut mediaotit - öroninflammation - är den vanligaste bakteriella infektionen hos barn. Den vanligaste öroninflammationsbakterien är pneumokocken. Öroninflammation är en infektion som varierar stort i svårighetsgrad; medan många öroninflammationer läker utan behandling kan andra ge upphov till livshotande komplikationer. Eftersom självläkningsfrekvensen är ganska hög oAcute otitis media (AOM) is the most common bacterial infection in children. The clinical course varies from spontaneous recovery to life-threatening complications, and this variability mainly depends on the causative pathogen. Bacteria usually invade the middle ear from the nasopharynx, where they are carried frequently, both during sickness and health. The most common bacterium to cause AOM, and
Background: Earlier studies have found a positive effect of alcohol consumption, with a reduced disease activity in rheumatoid arthritis (RA). The aim of this study was to assess alcohol consumption and its association with disease activity and health related quality of life (HRQL) in Swedish RA patients. Methods: Between 1992 and 2005, 2,800 adult patients were included in the BARFOT study of ear
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
Greek islands face a series of problems that can put their sustainability at risk. Overexploitation of natural resources, limited waste and wastewater management practices, and energy shortage are such problems. Lack of cyclic behaviour in resource flows is a factor tightly linked to these problems. Here, the concept of industrial symbiosis appears to offer an important potential in addressing som
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
