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In this thesis an optimization of a previously performed inclusive search for beyond Standard Model Physics in same-sign di-lepton final states is performed, but tuned for a doubly-charged Higgs boson decaying to same-sign di-muons. The doubly-charged Higgs boson is a proposed fundamental particle whose existence would provide evidence for theoretical extensions of the Standard Model (SM) of parti
In this study we compare different volatility models on their ability to forecast one day ahead volatility and value-at-risk (VaR). We compare five different GARCH specifications: GARCH, IGARCH, GJR-GARCH, EGARCH and APARCH, as well as EWMA, each paired with six different conditional distributions. These models are used to forecast volatility and VaR one day ahead using daily return data from the
This study aims to address criticism regarding the knowledge gap in Swedish research considering women's involvement in gangs and their treatment when seeking to exit a gang-involved lifestyle. The research seeks to contribute insights beneficial for women and grassroots bureaucrats involved in the existing process. The study qualitatively investigates current practices and discussions related
Chronic wounds are an emerging healthcare issue and current methods of healing chronic wounds address bacteria but are ineffective against resistant bacteria and the biofilm formation commonly observed in these wounds. Antimicrobial peptides (AMPs) derived from the endogenous wound healing system have been shown to combat bacterial infections, exhibit immunomodulatory effects, as well as improvi
The following study explores the economical and political determinants influencing the Swedish parliamentary election outcomes, through the lens of statistical modeling. With analysis of election data from 1970-2022, we employed both multiple regression and ridge regression to explore the following key variables: immigration, taxation, unemployment, inflation, poll performance, incumbency, margina
Mexico City’s water system is not sustainable. There is an unfair inequality gap in the quantity and quality of water access for its residents. Moreover, the groundwater aquifers in the city are being over-exploited and polluted. This has resulted in the sinking of the city, damage to the ecosystems, and the reduction of water access to Mexico City’s residents. As the policies are a direct instrum
Soil as a fundamental, conditionally renewable natural resource is increasingly under threat from unsustainable farming practices in a changing environment. In Hungary, expansive areas of land are susceptible to soil degradation, while only a small percentage of farmers currently applies soil conservation practices (SCPs). Degraded soils have an impact on food production, climate adaptation, clima
This paper examines the effects of Russia's invasion of Ukraine on economic growth in nine European countries. The countries are divided into primary neighbours (directly bordering Ukraine) and secondary neighbours (geographically close but not sharing a border). Using data from 1996 to 2023, 18 country-by-country regressions have been conducted as well as two panel data regressions to test th
This thesis aims to study the decision making process behind the solidarity mechanism in the EU legislative package a New Pact on Migration and Asylum. The legislation covers the issue of relocation of asylum seekers and other efforts towards a joint responsibility for the migration management. Since the migration crisis in 2015 the migration issue has been high on the agenda. Simultaneously, any
A search for a dark photon, a new light neutral particle, which decays promptly into collimated pairs of electrons or muons is presented. The search targets dark photons resulting from the exotic decay of the Standard Model Higgs boson, assuming its production via the dominant gluon-gluon fusion mode. The analysis is based on 140fb-1 of data collected with the ATLAS detector at the Large Hadron Co
A search for new particles decaying into a pair of top quarks is performed using proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at a center-of-mass energy of s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1. Events consistent with top-quark pair production and the fully hadronic decay mode of the top quarks are selected by requiring multip
BackgroundTo improve future mobile health (mHealth) interventions in resource-limited settings, knowledge of participants’ adherence to interactive interventions is needed, but previous studies are limited. We aimed to investigate how women in prevention of mother-to-child transmission of HIV (PMTCT) care in Kenya used, adhered to, and evaluated an interactive text-messaging intervention.MethodsWeBackground: To improve future mobile health (mHealth) interventions in resource-limited settings, knowledge of participants’ adherence to interactive interventions is needed, but previous studies are limited. We aimed to investigate how women in prevention of mother-to-child transmission of HIV (PMTCT) care in Kenya used, adhered to, and evaluated an interactive text-messaging intervention. Method
Background: Predicting future Alzheimer’s disease (AD)-related cognitive decline among individuals with subjective cognitive decline (SCD) or mild cognitive impairment (MCI) is an important task for healthcare. Structural brain imaging as measured by magnetic resonance imaging (MRI) could potentially contribute when making such predictions. It is unclear if the predictive performance of MRI can be
Non-typeable Haemophilus influenzae (NTHi) is a Gram-negative human pathogen that causes a wide range of airway diseases. NTHi has a plethora of mechanisms to colonize while evading the host immune system for the establishment of infection. We previously showed that the outer membrane protein P5 contributes to bacterial serum resistance by the recruitment of complement regulators. Here, we report
Drawing on archival material from the Danish Guinea Company and central administration, this article discusses the uses of the discourse of the law of nature and nations in the Danish-Dutch war of 1776–1778 on the Guinea Coast and its aftermath. It shows how Danish and Dutch administrators drew on the law of nature and nations to justify their competing claims in the war, which in turn hinged on c
A search for diphoton resonances in the mass range between 10 and 70 GeV with the ATLAS experiment at the Large Hadron Collider (LHC) is presented. The analysis is based on pp collision data corresponding to an integrated luminosity of 138 fb −1 at a centre-of-mass energy of 13 TeV recorded from 2015 to 2018. Previous searches for diphoton resonances at the LHC have explored masses down to 65 GeV,
A search is made for a vectorlike T quark decaying into a Higgs boson and a top quark in 13 TeV proton-proton collisions using the ATLAS detector at the Large Hadron Collider with a data sample corresponding to an integrated luminosity of 139 fb-1. The Higgs-boson and top-quark candidates are identified in the all-hadronic decay mode, where H→bb¯ and t→bW→bqq¯′ are reconstructed as large-radius je
