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We describe an experimental setup for non-linear interaction and propagation of ultrashort and intense x-ray free-electron laser (XFEL) pulses in a dense gas. It allows one to provide high, but adjustable, target-gas pressures of up to 6 bar within a vacuum environment of 3∙10− 3 mbar or better. The setup enables investigation of intense x-ray propagation in an optically thick medium with minimal

Genetic variation in immune genes is an important component of genetic diversity. The genes in the major histocompatibility complex (MHC) provide an excellent model system for studying the mechanisms that generate and maintain genetic diversity in natural populations. While both demographic factors and pathogen-mediated selection processes contribute to the extreme diversity observed in the MHC sy

The spectrum of frontotemporal dementia/amyotrophic lateral sclerosis (FTD/ALS) and Huntington disease (HD) are fatal neurodegenerative disorders with no major disease-modifying therapies. Recent work has shown that the hallmark pathological proteins TAR DNA binding protein of 43 kDa (TDP-43) in FTD/ALS and mutant huntingtin (mHTT) in HD may be interlinked. Furthermore, these disorders share early

BACKGROUND: – Proteins linked to heritable coronary heart disease (CHD) could uncover new pathophysiological mechanisms of atherosclerosis. We report on the protein profile associated with a family history of early-onset CHD and whether the relation between proteins and coronary atherosclerotic burden differs according to family history status, as well as inferences from Mendelian randomization. M

Background: Type 2 diabetes (T2D) is a well-established risk factor for cataract. However, whether the causal effect on cataract differs by sex remains unclear. Determining whether this causal effect differs by sex could help resolve discrepancies in epidemiological studies regarding cataract risk in populations with diabetes. Methods: Using summary statistics of East Asian and European population

The evolutionary dynamics of diurnal Aletis moths (Lepidoptera: Geometridae: Sterrhinae) in the Afrotropics have been obscured by their allopatric distributions, significant inter- and intraspecific variation in adult and caterpillar phenotypes, and involvement in complex mimicry systems. Extensive phenotypic disparity, alongside conserved genital morphology and a lack of suitable material for gen

BACKGROUND: Previous studies, including ours (Wuestefeld et al., Brain, 2023), showed tau positron emission tomography (PET) uptake in medial temporal and neocortical regions of amyloid-beta (Aβ)-negative cognitively unimpaired (CU) individuals, associated with neurodegeneration and worse memory performance. To further understand if tau-PET uptake is clinically relevant in this population, we char

BACKGROUND: The tau-PET radiotracer [18F]flortaucipir enables in vivo detection of tau pathology in Alzheimer's Disease (AD) and has recently been FDA- and EMA-approved for clinical use. To support its implementation, we assessed tau-PET's positive predictive value (PPV) and negative predictive value (NPV) for clinico-pathological AD while accounting for age, amyloid-status, and pre-PET diagnostic

Examensarbetets titel: När marknaden får beskedet - En eventstudie av marknadsreaktion, betalningsmedel och institutionellt ägande vid företagsförvärv Seminariedatum: 15 januari 2026 Ämne/kurs: FEKH89, Examensarbete i finansiering på kandidatnivå, 15 högskolepoäng Författare: Nils Arvidsson, André Mellqvist & Emilian Rehnström Handledare: Elias Bengtsson Fem nyckelord: Abnormal avkastning,Title: When the Market Receives the News – An Event Study of Market Reaction, Payment Method and Institutional Ownership in Mergers and Acquisitions Seminar date: 15 January 2026 Course: FEKH89, Bachelor Thesis in Corporate Finance, Undergraduate Level, 15 credits Authors: Nils Arvidsson, André Mellqvist & Emilian Rehnström Advisor: Elias Bengtsson Key words: Abnormal return, short-term m

Title: Good at Home? Buy a Foreign Company Seminar Date: 2026-01-15 Course: Business Administration: Bachelor’s degree Project in Financial Management, Undergraduate Level, 15 credits Authors: Herman Barzangi, Simon Hägglund, Ivan Hörvin Advisor: Cociorva Anamaria Key words: Foreign direct investment, Cross-border mergers & acquisitions, Exchange rate, Location-advantage, Unemployment rat

Denna studie undersöker om noteringstidpunkt under den svenska IPO-vågen 2021 är förknippad med systematiska skillnader i långsiktig aktieavkastning mellan så kallade leaders och followers. Studien har en kvantitativ ansats och bygger på multipla linjära regressionsanalyser där långsiktig avkastning mäts med Buy-and-Hold Abnormal Return (BHAR). Datamaterialet omfattar 108 börsintroduktioner på denThis study examines whether the timing of listing during the Swedish IPO wave of 2021 is associated with systematic differences in long-term stock performance between so-called leaders and followers. The study adopts a quantitative approach and is based on multiple linear regression analyses, where long-term performance is measured using Buy-and-Hold Abnormal Return (BHAR). The dataset comprises 1

Accurate shallow-water bathymetry is essential for navigation safety and coastal zone management, but conventional hydrographic surveys are costly and spatially limited, especially in dynamic nearshore environments. This thesis evaluates the newly released ICESat-2 ATL24 bathymetry product. It investigates its suitability as training data for satellite-derived bathymetry (SDB) using Sentinel-2 ima

Abstract Titel Sustainability as Resilience? The impact of ESG on the returns of Swedish stocks at the introduction of Covid-19 in Sweden. Seminar date 2026/01/15 Course FEKH89, Degree Project in Financial Management Undergraduate Level, 15 Credits Authors Jessica Enyonam Amedro Martina Popov Hashim Ssozi Advisor Maria Gårdängen Five keywords ESG, Covid-19, stock return, eventstudy, susta

Forskningsfråga: Förekommer en riskjusterad avkastning för traditionella respektive nya syndaktier i utvecklade europeiska länder, relativt deras jämförelseportföljer, under perioden 2006-2024? Syfte: Studien analyserar huruvida det förekommer en riskjusterad avkastning för traditionella respektive nya syndaktier i utvecklade europeiska länder under perioden 2006 till 2024. Metod: Studien bygger

Studien undersöker sambandet mellan styrelsens könssammansättning och underprissättning vid börsintroduktioner av svenska small-cap-bolag, med fokus på om effekten förändras när kvinnlig representation når en kritisk massa. Analysen bygger på kvantitativa tvärsnittsdata från 170 svenska börsintroduktioner under perioden 2018-2024, där underprissättning mäts som avkastningen första handelsdagen och

Titel: Är ESG Covid-vaccinet som företag behövde? Seminariedatum: 2026-01-15 Kurs: FEKH89, Examensarbete i Finansiering på kandidatnivå, 15 HP Författare: Ablat, Nurzat; Hård, Felix; Lewandrowski, Adam Handledare: Bengtsson, Elias Nyckelord: ESG, utdelning, Covid-19, Signaleringsteori, Agentteori Syfte: Syftet med studien är att studera skandinaviska börsnoterade bolag för att undersöka om dTitle: Is ESG the Covid-vaccine companies needed? Seminar date: 2026-01-15 Course: FEKH89, Bachelor Degree Project in Theory of Corporate Finance, 15 ECTS Authors: Ablat, Nurzat; Hård, Felix; Lewandrowski, Adam Advisor: Bengtsson, Elias Key Words: ESG, Dividends, Covid-19, Signaling Theory, Agency Theory Purpose: This study examines listed Scandinavian firms to assess whether ESG performance