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Impact of Acceleration Voltage on Cathodoluminescence for Defect Identification in InGaN Quantum Wells

Micro-LEDs have emerged as a hot research topic due to their potential for next-generation display and lighting applications, necessitating advanced characterization techniques to optimize their performance. This study demonstrates the advantage of cathodoluminescence in the scanning electron microscope to be a critical tool for the optical characterization of InGaN platelets with red quantum well

Majorana sweet spots in three-site Kitaev chains

Minimal Kitaev chains, composed of two quantum dots connected via a superconductor, have emerged as an attractive platform to realize Majorana bound states (MBSs). These excitations exist when the ground state is degenerate. The additional requirement of isolating the MBS wave functions further restricts the parameter space to discrete sweet spots. While scaling up to Kitaev chains with more than

Measuring coherence factors of states in superconductors through local current

The coherence factors of quasiparticles in a superconductor determine their properties, including transport as well as their susceptibility to electric fields. In this work, we propose a way to infer the local coherence factors using local transport to normal leads. Our method is based on measuring the local current through a lead as the coupling to a second one is varied; the shape of the current

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single-Atoms to Nanoparticles

Catalytic activity is improved by reducing particle size, followed by atomic scale structural and chemical design, allowing physical and electronic confinement of chemical conversion centers. These concepts culminate in single-atom catalysts (SACs) where active precious metal atoms are isolated and anchored on the surface of supports and thus fully utilized for chemical conversion. In contrast, me

Exploring Lignin Conformation in Organic and Deep Eutectic Solvents Using Small-Angle Neutron Scattering

Lignin, a structurally intricate and heterogeneous phenolic biopolymer, holds considerable promise as a sustainable alternative to petrochemical-derived materials across diverse applications in the energy and materials sectors. However, precise lignin molecular weight and structure determination remains challenging due to its intrinsic tendency to aggregate in solution and the absence of chem

Influence of Block Microstructure on the Interaction of Styrene-Maleic Acid Copolymer Aggregates and Lipid Nanodiscs

Investigation of the properties of membrane proteins (MPs) is essential to the successful development of medicines and biotechnology. However, their study is often complicated by denaturation caused by the use of detergents during conventional extraction methods. Copolymers of styrene and maleic acid (SMA) have shown promise in extracting MPs directly from cells while reconstituting lipid memb

Factors associated with health-related quality of life 1 year after COVID-19: a cross-sectional study in Sweden

Aims: The main aim of the present study was to identify factors influencing health-related quality of life (HRQoL), as measured by EQ-5D-5L, in individuals 1 year after the acute phase of COVID-19.Methods: This cross-sectional study included 75 participants (51% females), 1 year after confirmed SARS-CoV-2 infection (76% hospitalised). Associations between HRQoL, measured by patient-reported outcom

Nocturnal gastro-oesophageal reflux and pulmonary abnormalities on chest CT in a general population : the Swedish CArdioPulmonary BioImage Study

Background: Nocturnal gastro-oesophageal reflux (nGER) is common in people with respiratory diseases, but its association with pulmonary abnormalities is not known. Aim: Investigate the association between nGER and pulmonary abnormalities on chest CT in an adult general population. Methods: In total, 28 846 individuals from the general population aged 50-64 years completed questionnaires and under

Families of isospectral and isoscattering quantum graphs

A concept of germ graphs and the M-function formalism are employed to construct large families of isospectral and isoscattering graphs. This approach represents a complete departure from the original approach pioneered by Sunada, where isospectral graphs are obtained as quotients of a certain large symmetric graph. Using the M-function formalism and the symmetries of the graph itself we construct

Effects of Basic Body Awareness Therapy on movement quality in autistic young adults : a superiority pragmatic randomized controlled trial

Introduction Autistic persons experience problems with movements and body awareness in everyday functionality, expressed in affected movement quality. Yet, there is a knowledge gap about the effects of interventions targeting these aspects in autistic persons. Objective To evaluate effects of Basic Body Awareness Therapy (BBAT) and treatment-as-usual (TAU), compared to TAU alone on movement qualit

Effects of an anti-lipogenic low-carbohydrate high polyunsaturated fat diet or a healthy Nordic diet versus usual care on liver fat and cardiometabolic disorders in type 2 diabetes or prediabetes : a randomized controlled trial (NAFLDiet)

Polyunsaturated fatty acids (PUFA) have been shown to reduce liver fat compared to saturated fat, but effects of a novel “anti-lipogenic” diet replacing carbohydrates with PUFA (LCPUFA) or a low-fat healthy Nordic diet (HND) rich in whole-grains are unknown. The objective of this study was to investigate the effects of these diets, as compared with usual care (UC), on liver fat (primary outcome) a

Design, Synthesis and Aggregation of Amphiphilic Monomers—Cyclic and Tubular Hydrogen-Bonded Self-assembly in Conventional and Polar Media

Two hydrogen-bonding monomers containing tetraethylene glycol (TEG) chains have been synthesized and characterized. The monomers are based on a bicyclic scaffold appended with either 4H-bonding benzyl-substituted ureidopyrimidinone motifs or 2H-bonding unsubstituted pyrrole-fused ureidopyrimidinone motifs, with the TEG chains introduced with the aim of developing amphiphilic monomers soluble in no

Antecedent hypoglycaemia impairs glucagon secretion by enhancing somatostatin-mediated negative feedback control

Somatostatin, produced by pancreatic islet δ cells, is a key intra-islet paracrine factor that regulates the secretion of the glucoregulatory hormones insulin and glucagon from β cells and α cells, respectively. Here, we show that glutamate and glucagon released by α cells cooperatively activate neighbouring δ cells through AMPA and glucagon receptors, thereby enabling spatiotemporal feedback cont

Evaluation of the B-lactam antibiotic concentration in the early phase of treatment of patients with suspected sepsis at the emergency department

PURPOSE: Early administration of beta-lactam antibiotics is a crucial part in the treatment of sepsis and septic shock. Beta-lactams demonstrate time-dependent killing and therefore it is important to optimize the time above the minimal inhibitory concentration (MIC). An extra dose is recommended in threatening/suspected/confirmed septic shock. This study aimed to examine whether patients with sus

Controlled deposition of human neural stem cells on fiber substrates using gel encapsulation

Electrospinning is a versatile technique for manufacturing micro-nano diameter fibers and has been used extensively for tissue engineering in vivo and advanced cell culture in vitro. Standard means of seeding cells onto such substrates typically offer no control over cell distribution, yielding dispersed, heterogeneous and low concentrations of cells. In this article, we investigate the viability