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We report on recent developments that enable megahertz hard X-ray phase contrast imaging (MHz XPCI) experiments at the Single Particles, Clusters, and Biomolecules and Serial Femtosecond Crystallography (SPB/SFX) instrument of the European XFEL facility (EuXFEL). We describe the technical implementation of the key components, including an MHz fast camera and a modular indirect X-ray microscope sys
Detailed characterization of the unsteady combustion behaviors of individual aluminum (Al) droplets is scarce, due to the experimental challenges in resolving the transient phenomena at the micrometer scale. In this work, we spatiotemporally elucidate the complex interplay, including droplet coalescence, eruption, and fragmentation, of individually burning Al droplets and alumina (Al2O3) products,
This paper is based on a study where four go-along interviews with a total of sixteen participants were conducted in three Swedish cities. The purpose of this study was to find out how different aspects and qualities of the built environment affected different persons in terms of experiences of inclusion and exclusion and strategies used to deal with obstacles in the environment. The study highlig
BACKGROUND: There is a well-known comorbidity between chronic obstructive pulmonary disease (COPD) and coronary artery disease (CAD) which is only partially explained by common risk factors. Markers of cardiovascular autonomic dysfunction (CVAD), such as orthostatic hypotension and increased resting heart rate, are strongly associated with CAD. The autonomic nervous system also innervates the airw
Lymphoid specification is the process by which hematopoietic stem cells (HSCs) and their progeny become restricted to differentiation through the lymphoid lineages. The basic helix-loop-helix transcription factors E2A and Lyl1 form a complex that promotes lymphoid specification. In this study, we demonstrate that Tal1, a Lyl1-related basic helix-loop-helix transcription factor that promotes T acut
Billions of animals undertake migratory journeys every year, with powerful consequences for ecosystem dynamics. Key behaviours that enable successful migration are often guided by the visual system. The amount and quality of information that animals can extract from visual scenes are directly related to structural eye size—larger eyes can house larger pupils, enhancing light-gathering capacity and
Background: In the Malmö Breast Tomosynthesis Screening Trial (MBTST), digital breast tomosynthesis (DBT) increased the detection rate of breast cancer compared to currently used digital mammography (DM). This study evaluated the cost effectiveness of DBT versus DM in Sweden using data from MBTST. Materials and method: A health economic model was used to compare a breast cancer screening programme
Accurate prediction of crack growth and strength in glued timber joints and components can be achieved by using cohesive laws in constitutive models. These laws represent the traction-separation relationship that measures the stress transmitted between crack faces in a cohesive zone, and can be obtained directly from experiments. However, studies on measuring the cohesive laws of wood adhesive bon
Here we report the results from exploratory analysis using a Bayesian network approach of data originally derived from a large North European study of type 2 diabetes (T2D) conducted by the IMI DIRECT consortium. 3029 individuals (795 with T2D and 2234 without) within 7 different study centres provided data comprising genotypes, proteins, metabolites, gene expression measurements and many differen
We study the Higgs boson decay into dark matter (DM) in the framework of freeze-in at stronger coupling. Even though the Higgs-DM coupling is significant, up to order one, DM does not thermalize due to the Boltzmann suppression of its production at low temperatures. We find that this mechanism leads to observable Higgs decay into invisible final states with the branching fraction of 10% and below,
We report on the experimental investigation of potential high-performance cavity length stabilization using odd-indexed higher-order spatial modes. Schemes based on higher-order modes are particularly useful for micro-cavities that are used for enhanced fluorescence detection of a few emitters, which need to minimize photons leaking from a stabilization beam. We describe the design and constructio
The long-standing debate in the scientific community about whether ferroelectricity or ferroelasticity is the key property influencing the optoelectronic behavior of metal halide perovskites continues. In this study, we experimentally investigate the temperature dependence of photoluminescence from CsPb(Br1−xClx)3 nanowires and their heterojunctions. Our findings show an enhancement of the exciton
Cluster superlattice membranes constitute a novel 2D material, comprising a cluster superlattice sandwiched between a graphene support and an amorphous carbon embedding matrix. They offer a platform for investigating phenomena at the few atom to small cluster level with lateral averaging techniques. The amorphous carbon matrix provides mechanical and thermal stability to the cluster array, but alt
Objectives: 1. To validate catabolic meniscus explant models induced by cytokines: interleukin-6 + interleukin-6 receptor + tumor necrosis factor alpha (IL6/TNF) and oncostatin M + tumor necrosis factor alpha (OSM/TNF). 2. To evaluate three potential anti-catabolic treatments: i) dexamethasone (DEX), ii) a Link-N peptide (Link-N) and iii) a peptide from chondroadherin (CKF). Design: Healthy
Decolonizing development has animated conferences, grants, and programs for several years, a response to the ineffectiveness of much aid and ongoing colonial legacies. Yet, little attention has gone to the education of development practitioners and its impacts on their professional practices. We lack practical approaches for decolonizing our classrooms, especially approaches based on experiences o
Materials with heterogeneous microstructures have been reported to have an attractive combination of strength and ductility. This is attributed to synergistic strengthening effects from the difference in strength of fine- and coarse-grained regions. Understanding the interaction of the regions is crucial for further optimization of the microstructures. In this work, we fabricated nickel of harmoni
Introduction: A blood-based biomarker (BBBM) test could help to better stratify patients with traumatic brain injury (TBI), reduce unnecessary imaging, to detect and treat secondary insults, predict outcomes, and monitor treatment effects and quality of care. Research question: What evidence is available for clinical applications of BBBMs in TBI and how to advance this field? Material and methods:
Neutrophil gelatinase-associated lipocalin (NGAL) is a novel kidney injury and inflammation biomarker. We investigated whether NGAL could be used to predict continuous renal replacement therapy (CRRT) and mortality in critical coronavirus disease 2019 (COVID-19). This prospective multicenter cohort study included adult COVID-19 patients in six intensive care units (ICUs) in Sweden between May 11,
α-Synuclein is a small neuronal protein enriched at presynaptic termini. It is hypothesized to play a role in neurotransmitter release and synaptic vesicle cycling, while the formation of α-synuclein amyloid fibrils is associated with several neurodegenerative diseases, most notably Parkinson’s Disease. The molecular mechanisms of both the physiological and pathological functions of α-synuclein re
