Search results

A search for pair-production of vector-like leptons is presented, considering their decays into a third-generation Standard Model (SM) quark and a vector leptoquark (U1) as predicted by an ultraviolet-complete extension of the SM, referred to as the ‘4321’ model. Given the assumed decay of U1 into third-generation SM fermions, the final state can contain multiple τ-leptons and b-quarks. This searc

A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to the b-jet, c-jet, and light-flavour jet classification probabilities from jet-tagging algorithms in simulation are derived for b-jets using tt¯→eμννbb data. After application of the derived calibration maps, closure betwe

Higgs boson production cross-sections via gluon–gluon fusion and vector-boson fusion in proton–proton collisions are measured in the H→WW∗→ℓνℓν decay channel. The Large Hadron Collider delivered proton–proton collisions at a centre-of-mass energy of 13TeV between 2015 and 2018, which were recorded by the ATLAS detector, corresponding to an integrated luminosity of 140fb-1. The total cross-sections

Background and purpose — Ankle arthrodesis (AA) and total ankle replacement are the 2 main surgical treatment options for advanced ankle arthritis but information is scarce on satisfaction and patient-reported outcome measures (PROMs) after surgery. We aimed to evaluate postoperative satisfaction, changes in PROMs from before to 2 years after AA, and factors associated with the outcome.Methods — T

A search for single production of a vector-like quark Q, which could be either a singlet T, with charge 23, or a Y from a (T, B, Y) triplet, with charge −43, is performed using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to the full integrated luminosity of 140 fb−1 recorded with the ATLAS detector during Run 2 of the Large Hadron Collider. The anal

Background: The need for complete staging surgery including hysterectomy for all age patients with borderline ovarian tumors (BOT) is debatable, considering fertility in younger patients and potential higher morbidity in older patients. We aimed to investigate the relapse risk and overall survival in a cohort including patients who underwent conservative surgery (organ-preserving procedures) to miBackground:The need for complete staging surgery including hysterectomy for all age patients with borderline ovarian tumors (BOT) is debatable, considering fertility in younger patients and potential higher morbidity in older patients. We aimed to investigate the relapse risk and overall survival in a cohort including patients who underwent conservative surgery (organ-preserving procedures) to min

This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dij

I följande examensarbete undersöks den morfologiska kustlinjeutvecklingen vid den västra stranden i Ystad Sandskog med fokus på kusterosion och längsgående sedimenttransport. Kuststräckan är historiskt och fortsatt erosionsutsatt och ligger i nära anslutning till bebyggelser, infrastruktur och naturreservatet Sandskogen. För att motverka kustens tillbakadragning har flera kustskyddsåtgärder implemThis master thesis investigates the morphological shoreline development at the western beach of Ystad Sandskog, with a focus on coastal erosion and longshore sediment transport. The coastline is affected by erosion and is located close to residential areas, infrastructure and the nature preserve Sandskogen. Several coastal protection measures have been implemented to prevent ongoing shoreline retr

The development and manufacturing process for Integrated Circuits (ICs) has become complex and globally distributed. System integrators use a mix of custom made logic with third-party Intellectual Property (IP) blocks, untrusted software tools, and external actors for manufacturing, post-production test, and validation. The many untrusted actors involved throughout the IC’s lifetime become a secur

Streets are emerging as vibrant platforms of public life. While mobility continues to be the dominant function of these spaces, streets are being reconfigured by various stakeholders to promote multifunctional benefits, including socialisation and inclusion, play and rest, political action, economic opportunities, biodiversity, and cultural expression. This thematic issue includes a wide range of

Introduction: The recent Covid-19 pandemic has renewed interest in studying the impact of environmental factors on the airborne transmission of viral infectious diseases. Human rhinovirus is the main cause of acute respiratory infections, primarily driven by young children who have an average of 6 -10 infections annually, while healthy adults typically experience 2–3 infections per year. Although

Elsparkcyklarna sprider sig, inte bara inom Lund utan över hela jorden. Därför växer även behovet av säkrare och mer hållbara batterier. Batteriets hölje är särskilt kritiskt för att skydda batteriet mot stötar, värme och elektromagnetism. Detta examensarbete fokuserade på just detta hölje och om det är rimligt att 3D-printa det. Genom ett omfattande designprojekt mynnade arbetet slutligen ut i koThe aim of this project was to explore battery enclosures, specifically for e-scooter batteries, and whether additive manufacturing can be used to enhance existing designs. Furthermore, FEM and topology optimization were explored as tools for optimizing these designs. A modified Double Diamond approach was used as a guideline for the project. The modified version enters a prolonged optimization p

Vad händer med den kirurgiska förmågan när man sänker bildfrekvensen? En studie för utveckling av autonoma kirurgiska robotar med människan som utgångspunkt. Varje år föds cirka 1.3 miljoner barn med hjärtfel och cirka 25% behöver vård inom ett år för att överleva. Då det råder global brist på barnhjärtkirurger, hinner inte alla barn få den vård de behöver. Det kan dessutom ta en kirurg 15-20 år A shortage of pediatric heart surgeons across the world limits the available surgical interventions, leading to long wait times and higher risk of mortality. The use of robotic surgery and its advantages may help address this issue, and the Collaborative Articial Intelligence Sur- gical Assistance-project is a starting point to develop an autonomous robotic surgical assistant. However, the video f

As the green transition requires a radical approach to the re/distribution of resources, the 2024 edition of Lund Architecture Symposium (LAS24) invites a cohort of progressive architectural practices to explore contemporary tendencies in space and materiality. While the construction industry accounts for nearly 40% of the global CO2 footprint – much coming from the production and waste of materia

2023 marks the year when the UIA World Congress Copenhagen event turns the Øresund Region into the epicenter of global debate on architecture’s capacity to reimagine the transformation of societies into sustainable living. Celebrating this manifestation, which will commence on both sides of the Sound, LAS23 will utilize the New European Bauhaus’ three concepts -- sustainability, aesthetics, inclus

Objectives: To investigate whether pancreatic steatosis is associated with the presence of pancreatic cysts among individuals with diabetes. Material and Methods: 158 individuals [mean age 66 ± 10 years, 81 (51%) female] with diabetes [135 (85%) had type 2 diabetes] participated in the study involving Magnetic Resonance Imaging (MRI), blood tests and anthropometric measurements. Pancreatic steatos