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Single shot x-ray phase contrast imaging using a direct conversion microstrip detector with single photon sensitivity

X-ray phase contrast imaging enables the measurement of the electron density of a sample with high sensitivity compared to the conventional absorption contrast. This is advantageous for the study of dose-sensitive samples, in particular, for biological and medical investigations. Recent developments relaxed the requirement for the beam coherence, such that conventional X-ray sources can be used fo

Social movements on the internet : Together alone or alone together?

Sherry Turkle in her groundbreaking book 'Alone Together' suggests that the Internet gives an illusion of togetherness while contributing to isolation. How might this play out in social movements on the Internet? Can social media bring people together? This research in progress explores the role of social media as a way to facilitate collective political action. It discusses the preliminary findin

The Future of Local Democracy : A Somewhat Dystopian View

Tomas Bergström discusses, with examples mainly from Sweden, the future of party-based local democracy. Could local democratic systems change as conditions change and remain vigorous? Long-term trends present a rather dystopian picture that seems to result in reduced discretion and depoliticisation. Changes that has taken place like globalisation, marketisation, the impact of social media and new

Selected Topics on Socio-technical Perspective in Information Systems : Editorial Introduction to Issue 22 of CSIMQ

This thematic issue of the Complex Systems Informatics and Modeling Quarterly (CSIMQ) journal is dedicated to fostering a socio-technical perspective in the Information Systems (IS) field. The contemporary perspective has developed a lot over the years and the socio-technical agenda continues to be relevant. The issue contains a selection of extended papers presented at STPIS’19 – 5th Internationa

Lead, cadmium, and mercury blood levels in schoolchildren in southern Sweden : Time trends over the last decades

To prevent diseases arising from exposure to toxic metals, more knowledge about their temporal changes is needed, especially in children, the most vulnerable group. This study follows temporal changes in blood lead (BPb), mercury (BHg) and cadmium (BCd) levels in schoolchildren (8–11 years old) from two cities in southern Sweden. One blood sample per 773 children was used for time trend analyses b

Coexistence - A place for all

"Wasserstadt - a place of coexistence" Global challenges such as climate change, resource scarcity, population growth, and migration will inevitably change the way we live. Cities are conglomerates of many and, thus, are often perceived as a threat to wildlife and plant life. But what if we harnessed the potential of cities as conglomerates of people, hubs of innovation, and sustainable

The modified Borg/6-min walk distance ratio : a method to assess exertional breathlessness and leg discomfort using the 6-min walk test

Background The 6-min walk test (6MWT) is widely used to assess exercise capacity across chronic health conditions, but is currently not useful to assess symptoms, as the scores do not account for the 6-min walk distance (6MWD). We aimed to 1) develop normative reference equations for breathlessness and leg discomfort intensity expressed as modified Borg (mBorg)/6MWD ratios; and 2) validate the equ

Alloying and Oxidation of PdAu Thin Films

The relation between catalytic activity and the presence of oxides on the catalyst’s surface has proven very complex, especially in the case of methane oxidation over Pd. While the metallic Pd surface and a thin, but at least two atomic layers thick, oxide film has been found catalytically active, a single-layer surface oxide or a too thick oxide film are both low-active. Unfortunately, under reac

Ambient pressure operando catalytic characterization by combining PM-IRRAS with planar laser-induced fluorescence and surface optical reflectance imaging

We present a combination of optical operando techniques that allow us to bridge the pressure gap in heterogeneous catalysis. By combining Polarization Modulated - InfraRed Reflection Absorption Spectroscopy (PM-IRRAS) with two dimensional-Surface Optical Reflectance (2D-SOR) and Planar Laser Induced Fluorescence (PLIF), we can simultaneously measure the adsorbed species on the catalyst surface, mo

K∗(892)0 and φ(1020) production in p-Pb collisions at sNN =8.16 TeV

The production of K∗(892)0and φ(1020)resonances has been measured in p-Pb collisions at sNN = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval -0.5 < y < 0 and the transverse momentum spectra are measured for various multiplicity classes up to pT = 20 GeV/c for K∗(892)0and pT = 16 GeV/c for φ(1020). The pT-integrated yields

The Challenges of Sustainable Investing

Over the past decades, investment preferences towards portfolio construction have changed from focusing solely on profit maximization, into a combination of good financial perfor- mance as well as a responsible sustainability outcome. The purpose of this paper is three- fold: first, to investigate whether a sustainable portfolio based on a high environmental, social and governance (ESG) score cont

Comparing different techniques for obtaining molecular size distributions of glycogen

Glycogen is a hyperbranched glucose polymer, serving as a major energy reservoir in animals. Characterization of the size distributions of complex branched polysaccharides helps in the understanding of their structural and functional properties. This study compared the effectiveness of various techniques in analyzing glycogen size distributions, namely size-separation-based techniques (size exclus

Osäkerhet i beslut om placeringar av barn och unga

Hur går det till när besluts fattas om huruvida, när och vart ett barn eller en ungdom ska placeras i samhällsvård och vad händer med detta beslutsfattande när ärendetrycket ökar på organisationen? Den brittiske barnavårdsforskaren Nigel Parton (1998), bland andra, har hävdat att när trycket ökar och resurser blir färre inom människobehandlande organisationer som Socialtjänsten, är en vanlig reakt

Hormone status in occupational toluene exposure

Twenty toluene-exposed rotogravure printers, without signs of solvent-induced toxic encephalopathy, had lower median plasma levels of follicle stimulating hormone (FSH) (3.2 vs. 4.9 IU/L; p = .02) and luteinizing hormone (LH) (6.4 vs. 7.2 IU/L; p = .05) and also lower serum levels of free testosterone (7.8 vs. 86.8 pmol/L; p = .05), respectively, than 44 unexposed referents. The individual time-we

Methylxanthine for the prevention and treatment of apnea in preterm infants

BACKGROUND: Very preterm infants often require respiratory support and are therefore exposed to an increased risk of chronic lung disease and later neurodevelopmental disability. Although methylxanthines are widely used to prevent and treat apnea associated with prematurity and to facilitate extubation, there is uncertainty about the benefits and harms of different types of methylxanthines.OBJECTI