Sökresultat

Filtyp

Din sökning på "*" gav 530367 sökträffar

Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet

We report angle-resolved measurements on photoelectrons emitted upon near-threshold two-photon double ionization (TPDI) of Kr irradiated by free-electron laser (FEL) pulses. These photoelectron angular distributions (PADs) are compared with the results of semirelativistic R-matrix calculations. As reported by Augustin et al. [Phys. Rev. A 98, 033408 (2018)10.1103/PhysRevA.98.033408], it is found t

Increased risk of Graves´ophthalmopathy in patients with increasing TRAb after radioiodine treatment and the impact of CTLA4 on TRAb titres

Introduction: Treatment of Graves´ disease (GD) with radioiodine increases the risk of developing Graves´ ophthalmopathy (GO), and the link between thyroid and orbital tissue may be the presence of TSH-receptors. Radioiodine increases the titers of TRAb and the aim was to investigate the relationship between GO and TRAb titers after treatment with radioiodine and to define the impact of risk genes

Firm-level antecedents and consequences of knowledge hiding climate

Knowledge hiding at the firm-level has received limited empirical attention. We address this gap by examining the antecedents and consequences of knowledge hiding climate using two studies. We explore the role that human resource (HR) practices play as an antecedent of firm knowledge hiding, and the influence knowledge hiding has on innovation and firm performance. We find HR practices contribute

Simultaneous mapping of T1and B1+ in human brain at 7T

PurposeTo map T1 and the local flip angle (B1+) in human brain using a single MP3RAGE sequence with 3 rapid acquisitions of gradient echoes (RAGEs).Theory and methodsA third RAGE with a relatively high flip angle was appended to an MP2RAGE sequence. Through curve fitting and a rational approximation for small flip angles and short TR, closed form solutions for T1 and B1+ were derived. The influenc

Anomaly Detection Under Multiplicative Noise Model Uncertainty

State estimators are crucial components of anomaly detectors that are used to monitor cyber-physical systems. Many frequently-used state estimators are suscepti- ble to model risk as they rely critically on the availability of an accurate state-space model. Modeling errors make it more difficult to distinguish whether deviations from expected behavior are due to anomalies or simply a lack of knowl

Tuberculosis screening among ambulatory people living with HIV: a systematic review and individual participant data meta-analysis

Background: The WHO-recommended tuberculosis screening and diagnostic algorithm in ambulatory people living with HIV is a four-symptom screen (known as the WHO-recommended four symptom screen [W4SS]) followed by a WHO-recommended molecular rapid diagnostic test (eg Xpert MTB/RIF [hereafter referred to as Xpert]) if W4SS is positive. To inform updated WHO guidelines, we aimed to assess the diagnost

Phenotypic drug screening in a human fibrosis model identified a novel class of antifibrotic therapeutics

Fibrogenic processes instigate fatal chronic diseases leading to organ failure and death. Underlying biological processes involve induced massive deposition of extracellular matrix (ECM) by aberrant fibroblasts. We subjected diseased primary human lung fibroblasts to an advanced three-dimensional phenotypic high-content assay and screened a repurposing drug library of small molecules for inhibitin

Global epidemiology of vasculitis

The many forms of vasculitis are characterized by inflammation of blood vessels, leading to potentially long-term sequelae including vision loss, aneurysm formation and kidney failure. Accurate estimation of the incidence and prevalence has been hampered by the absence of reliable diagnostic criteria and the rarity of these conditions; however, much progress has been made over the past two decades

Educating towards the prudent entrepreneurial self – an educational journey including agency and social awareness to handle the unknown

Purpose: This paper explores the idea of the prudent entrepreneurial self, through re-conceptualizing prudence into the domain of entrepreneurial education, to unite the two processes of becoming enterprising and entrepreneurial. It is argued that developing a capacity for prudence among graduates involves past, present and conjecture forms of knowledge that the authors find in the interplay betwe

Applications of Laser-Plasma Acceleration

This thesis is dedicated to the investigation of laser-plasma particle acceleration concepts. Some of the work was focused on improving electron and proton acceleration for future applications, in terms of maximizing the particle energy and minimizing the divergence of the X-ray beams. In laser wakefield acceleration, a very intense laser pulse (> 1018 W/cm2) is focused in a gas. The leading edge

Myocardial injury biomarkers at point of care for early identification of primary graft dysfunction after heart transplantation

INTRODUCTION: Primary graft dysfunction (PGD) is a leading cause of 30-day mortality following heart transplantation, and early intervention in PGD may correlate to improved survival. Our analysis aimed to determine the feasibility of measuring cardiac biomarkers from the donor heart in the early phase for use as a predictor of PGD.METHODS: Blood samples from the coronary sinus were obtained at th

Fair heat distribution under deficits in district heating networks

In order to improve the energy efficiency in district heating networks and the comfort of their customers, these networks need to overcome the problem of unfair heat distribution under heat deficits. This paper introduces a new strategy to achieve this thermal fairness objective: it is lowcost in terms of communication and computation. The proposed approach is illustrated on a simulation example.

The Business of Citizenship: Investment Citizenship Firms in Global Governance

Since the 2008 financial crisis, more and more states have started to “sell” citizenships and residence permits to the global economic elite in return for investments. This trade is mediated by transnational firms in the investment citizenship industry, who help governments design and reform the programmes, and assist the wealthy in applying for them. The objective of this article is to explore th

Streptococcus bovis-bacteremia: subspecies distribution and association with colorectal cancer : a retrospective cohort study

This study aimed to describe the incidence of Streptococcus bovis/Streptococcus equinus complex (SBSEC) bacteremia, distribution of the SBSEC subspecies, and their respective association with colorectal cancer (CRC). A population-based retrospective cohort study of all episodes of SBSEC-bacteremia from 2003 to 2018 in Skåne Region, Sweden. Subspecies was determined by whole-genome sequencing. Medi

Value Destruction in Information Technology Ecosystems : A Mixed-Method Investigation with Interpretive Case Study and Analytical Modeling

Many of today’s software systems are created by leveraging ecosystems consisting of heterogeneous “complementors” and “hub” firms. In fact, the reliance on ecosystems is prevalent in the enterprise resource planning (ERP) domain, where larger ERP vendors form collaborative relationships with smaller industry-specific vendors to co-create value for themselves and their customers. However, value cre

Förord

Förord till Johan Nordström: Föredrag om Sigfrid Aronus Forsius hållet vid Lärdomshistoriska samfundets årsmöte i Rikssalen 12/5 1935