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A search for four-top-quark production, tttt, is presented. It is based on proton-proton collision data with a center-of-mass energy s=13 TeV collected by the ATLAS detector at the Large Hadron Collider during the years 2015 and 2016, corresponding to an integrated luminosity of 36.1 fb-1. Data are analyzed in both the single-lepton and opposite-sign dilepton channels, characterized by the presenc
Sedan det europeiska projektets tidiga dagar har de underliggande ekonomiska motiven för integrationen konfronterats med allmänna intressen såsom oro för miljön. Denna spänning har varit påtaglig, i synnerhet förhållandet mellan nationella åtgärder som syftar till att skydda miljön och allmänna bestämmelser som reglerar EU:s inre marknad. Med tiden har miljöskydd och hållbar utveckling blivit inteSince the early days of the European project the economic rationale of integration has been confronted by public interests such as concerns for the environment. This tension has been tangible particularly in the relationship between national measures aimed at protecting the environment and the general rules governing the internal market. Over time environmental protection and sustainability have b
As a transition economy, China faces the reality of shortage of innovation resources and unbalanced allocation of innovation resources among regions when operating innovation activities. In order to solve these two problems, China needs to make efforts in increasing innovation efficiency and narrowing disparities between eastern regions and other regions. Among them, central regions are the area t
Objective To evaluate current evidence on the efficacy and safety of topical and systemic medications in patients with primary Sjögren syndrome (SjS) to inform European League Against Rheumatism treatment recommendations. Methods The MEDLINE, EMBASE and Cochrane databases were searched for case-control/prospective cohort studies, randomised controlled trials (RCTs) and systematic reviews. Results
A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of root s = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb(-1). The event selection requires a Z boson decaying into high P-T electrons or muons,
This Letter reports on a first measurement of the inclusive W + jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measureme
The flavocytochrome cellobiose dehydrogenase (CDH) is secreted by wood-decomposing fungi, and is the only known extracellular enzyme with the characteristics of an electron transfer protein. Its proposed function is reduction of lytic polysaccharide mono-oxygenase for subsequent cellulose depolymerization. Electrons are transferred from FADH(2) in the catalytic flavodehydrogenase domain of CDH to
There is a notable trend within the building industry to move from traditional two-dimensional drawing tools towards three-dimensional design tools in order to make the design process more effective with a quicker and more rational way to produce blue prints and other documents. Parallel to this trend it is also become more common for structural engineers to use three dimensional tools for stru
Experimental nuclear structure data coming from superheavy nuclei synthesis experiments often consists of correlated alpha decay chains. In the absence of neutron detectors - which would fully characterize the exit channel after the fusion-evaporation reaction - the sequence of decay energies and half-lives are the 'fingerprint' of the exit channel itself. Experimental data in this region
Over the last decade, the interest in research on extraterrestrial planets has expanded dramatically. With the number of confirmed exoplanets having increased tenfold over the last ten years, we now know that many different types of exoplanets exist. Modern telescopes, both ground- and space-based, like the Very Large Telescope (VLT) or the James Webb Space Telescope (JWST) will drive forward the
The case study in focus for this research is the Women’s Strike in Poland movement during its articulation in late 2020. This movement was organized to campaign for reproductive rights and women’s rights in Poland after a restrictive abortion law was proposed in 2016, put into motion in 2020, and passed in 2021. This is an example of a contemporary movement supporting body autonomy and gender equa
The substantial growth of private health insurance in 21st century Sweden has sparked debates about its potential effect on waiting times within the public health care system. Some argue that individuals with private health insurance are prioritized in the waiting list for health care, potentially leading to longer waiting times for those without private coverage. Conversely, others argue that pri
The Black Forest National Park (NP), Germany, opened in 2014 after intense societal disputes, complicated by changing political factors, scientific conservation debates, and multi-level decision-making structures. I argue that value conflicts over fundamentally opposed views on nature underlie these disputes, and that integrating these views in future NP planning may improve the sustainability of
Iron deficiency is the most common nutritional disorder in the world. It is the only nutrient deficiency that is not exclusively prevalent in non-industrialized nations but also in all industrialized countries. Despite this, the treatment for the disease is inefficient, long and associated with side effects such as constipation and nausea. In recent years several studies have highlighted the diffe
The aim of this research was to explore the consumer behavior of international students in the context of the choice for a higher education institution abroad in order to gain insights on their interactions with different online media communication channels during their decision journey. Previous research discussed the increased use of the internet during the application process for universities a
This master’s thesis investigates sustainability management within a fashion company and how a company could use the sustainability management tool the Higg Index 2.0 Brand and Retail Module to work towards its prioritised UN Sustainable Development Goals (SDGs). It is a comparative review of the two frameworks, the Index and the SDGs, from a life cycle analysis perspective. It also includes a cas
Consumers are increasingly becoming aware of the abusive exploitation of workers in some of the factories in the development countries that are contracted to produce exports to the European market. Thus, some of the consumers try to promote the enforcement of ethical business practices globally by using their buying behaviour. In effect, the ethical consumers prefer to buy ethically sound goods to
This document presents the methodological approach used in two papers about historical income taxes: “Income taxes and redistribution in the early twentieth century” (Torregrosa-Hetland and Sabaté, 2021) and “Income tax progressivity and inflation during the World Wars” (Torregrosa-Hetland and Sabaté, 2019). We first describe the general method and sources used to obtain synthetic distributions of
Results of a search for gluino pair production with subsequent R-parity-violating decays to quarks are presented. This search uses 36.1 fb−1 of data collected by the ATLAS detector in proton–proton collisions with a centre-of-mass energy of s=13 TeV at the LHC. The analysis is performed using requirements on the number of jets and the number of jets tagged as containing a b-hadron as well as a top
This paper has its starting point with the discrepancy between the ICPD Plan of Action and the Millennium Development Goals with regards to their separate emphasis on the importance of family planning services as a reproductive health component. The population problem can be looked upon from various theoretical schools. This paper examines the sharply contrasting views of economists, on the one ha
