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Geometric effects in random assemblies of ellipses

Assemblies of anisotropic particles commonly appear in studies of active many-body systems. However, in two dimensions, the geometric ramifications of the finite density of such objects are not entirely understood. To fully characterize these effects, we perform an in-depth study of random assemblies generated by a slow compression of frictionless elliptical particles. The obtained configurations

Disparities in prevalence of heart failure according to age, multimorbidity level and socioeconomic status in southern Sweden : a cross-sectional study

OBJECTIVE: The aim of this study was to compare the prevalence of heart failure (HF) in relation to age, multimorbidity and socioeconomic status of primary healthcare centres in southern Sweden.DESIGN: A cross-sectional study.SETTING: The data were collected concerning diagnoses at each consultation in all primary healthcare centres and secondary healthcare in the southernmost county of Sweden at

A new, faint population of X-ray transients

We report on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint (mR = 27.5mag, zph ~2.2) host in the CANDELS survey. The X-ray event is comprised of 115+12 -11 net 0.3-7.0 keV counts, with a light curve characterized by an ~100 s rise time, a peak 0.3-10 keV flux of ~5 × 10-12 erg s-1 cm-2 and a power-law decay time

Harmonic-cavity stabilization of longitudinal coupled-bunch instabilities with a nonuniform fill

In synchrotrons, nonuniform fill patterns, which give rise to beam phase transients and a spread in synchrotron tune between bunches, have been observed to damp longitudinal coupled-bunch instabilities driven by higher-order modes in rf cavities. The transients are especially large in the presence of Landau cavities, which are used commonly in storage-ring light sources and particularly in the new

Successful percutaneous extraction of malpositioned pacemaker lead in the left ventricle after proper dabigatran treatment

Malpositioned pacemaker lead in the left ventricle (LV) is a rare procedural complication, which causes a special risk of thromboembolic events. Hence, prompt identification and early management of misplaced leads inside the LV is critical. Herein, we present a case of malpositioned pacemaker lead with transient ischemic attacks after the pacemaker implantation. The misplaced ventricular lead was

Functional brain architecture is associated with the rate of tau accumulation in Alzheimer’s disease

In Alzheimer’s diseases (AD), tau pathology is strongly associated with cognitive decline. Preclinical evidence suggests that tau spreads across connected neurons in an activity-dependent manner. Supporting this, cross-sectional AD studies show that tau deposition patterns resemble functional brain networks. However, whether higher functional connectivity is associated with higher rates of tau acc

Problems, problem-solving and problem-solving networks - a theoretical foundation for FIRE21

This document is created within the research project Nordic Fire and Rescue Services in the Twenty First Century (FIRE21). In this project, the fire and rescue services are seen as both governed by, and dependent on, formal and informal networks. A fundamental assumption in the research project is that efficient emergency management is dependent on efficient problem-solving in these networks. As a

Gene editing of CD34+ progenitor cells from single blood donor waste bags to create cultured early erythroid cells for study of blood group knock-outs

Background: Many blood group antigens are carried by red cell surface proteins, thefunctions of which are not yet fully characterized or in some cases completelyunknown. By investigating red cells with naturally-occurring blood group variants,much has been learnt about the underlying molecules. However, interindividualvariation affecting other molecules than the one(s) of interest may confound oro

Self-assembly and entropic effects in pear-shaped colloid systems. II. Depletion attraction of pear-shaped particles in a hard-sphere solvent

We consider depletion effects of a pear-shaped colloidal particle in a hard-sphere solvent for two different model realizations of the pear-shaped colloidal particle. The two models are the pear hard Gaussian overlap (PHGO) particles and the hard pears of revolution (HPR). The motivation for this study is to provide a microscopic understanding for the substantially different mesoscopic self-assemb

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Nature-based solutions are actions that use ecological processes to address societal challenges. In riverscapes, for example, revitalising floodplains helps to reduce the risks of peak floods in the lower reaches. At the same time, nature-based solutions often provide multiple co-benefits for people and nature, such as promoting the provision of important ecosystem services and contributing to bio

Usage and usability of a national e-library for chemotherapy regimens: a mixed method study

Background: Accurate information about chemotherapy drugs and regimens is needed to reduce chemotherapy errors. A national e-library, as a common knowledge source with standardized chemotherapy nomenclature and content, was developed. Since the information in the library is both complex and extensive, it is central that the users can use the resource as intended.Objective: The aim of this study waBackground:Accurate information about chemotherapy drugs and regimens is needed to reduce chemotherapy errors. A national e-library, as a common knowledge source with standardized chemotherapy nomenclature and content, was developed. Since the information in the library is both complex and extensive, it is central that the users can use the resource as intended.Objective:The aim of this study was

Nuclear shape evolution based on microscopic level densities

By combining microscopically calculated level densities with the Metropolis walk method, we develop a consistent framework for treating the energy and angular-momentum dependence of the nuclear shape evolution in the fission process. For each nucleus under consideration, the level density is calculated microscopically for each of more than five million shapes with a recently developed combinatoria

Critical salt effects in the swelling behavior of a weak polybasic brush

The swelling behavior of poly(2-(diethylamino)ethyl methacrylate) (PDEA) brushes in response to changes in solution pH and ionic strength has been investigated. The brushes were synthesized by ARGET ATRP methodology at the silica–aqueous solution interface via two different surface-bound initiator approaches: electrostatically adsorbed cationic macroinitiator and covalently anchored silane-bas

Ten years of paediatric robotic surgery : Lessons learned

BACKGROUND: Costs and a low total number of cases may be obstacles to the successful implementation of a paediatric robotic surgery programme. The aim of this study was to evaluate a decade of paediatric robotic surgery and to reflect upon factors for success and to consider obstacles.MATERIALS AND METHODS: All children operated on with robotic-assisted laparoscopic surgery between 2006 and 2016 w