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This study presents a practical approach for characterizing industrial water-splitting nickel foam electrodes under both cathodic and anodic conditions by employing synchrotron radiation near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS). The in situ studies reveal quantitatively reduced and oxidized Ni species on the electrode surface by recording the Ni 2p3/2 signals after cycling

Branch groups stem from one of the most influential problems in group theory: The famous Burnside Problem, which arose in 1902 and asks if a finitely generated torsion group, i.e. in which every element has finite order, can be itself infinite. Now branch groups are groups acting on rooted trees, that have a rich tree-like subgroup structure. There are many examples of branch groups with remarkabl

This case report highlights the challenges in treating bronchopulmonary dysplasia (BPD) in a premature infant with severe pulmonary hypertension, recurrent pulmonary hypertensive crises, and the need of 100% oxygen to achieve acceptable arterial oxygen saturations. Key factors in the infant's improvement involved switching from pulmonary vasodilation to systemic afterload reduction using losartan,

Biofilms are highly organized, cooperating communities of microorganisms encased in a self-produced extracellular matrix, providing resilience against external stress such as antimicrobial agents and host defenses. A hallmark of biofilms is their phenotypic heterogeneity, which enhances the overall growth and survival of the community. In this study, we demonstrate that removing the dnaK and tig g

There is a strong societal demand for the development of effective and eco-friendly UV blocking substances for sunscreen applications. In this work, three AB2-type monomers with 0-2 methoxy groups are synthesized using three corresponding lignin-based monomeric aromatics and a potentially biobased hydandoin. The obtained AB2-type monomers are conveniently polymerized via conventional bulk polycond

Qualitative and quantitative visualizations of transonic turbomachinery flows provide essential information on compressibility and Mach number effects on boundary layer development, shock-boundary layer interactions, and trailing edge flows. Background oriented Schlieren (BOS) is a relatively new optical technique that allows capturing unsteady density gradient fields through turbomachinery cascad

Nature sounds are often seen as relaxing, and understood as reconnecting our minds and bodies with something primeval. Such sounds are used for stress recovery in the fields of medicine and psychology, as well as in our personal meditation app downloaded on our phone. At the same time a continuous climate anxiety has invaded many personal experiences in relation to nature environments and phenomen

ObjectivesStructural defects during fenestrated endovascular aortic repair (FEVAR) can be difficult to identify only on two-dimensional imaging. This study aims to assess the potential additional value of routine intraoperative completion plain cone-beam computed tomography (CBCT) in identifying such defects during FEVAR.MethodsA retrospective review of all consecutive FEVARs performed at a tertia

Objective Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a rare disease that can result in severe bleeding in a fetus or newborn, including intracranial hemorrhage. Maternal-fetal human platelet antigen (HPA)-1a incompatibility is a prerequisite to maternal HPA-1a alloimmunization, which may result in FNAIT. The risk of HPA-1a alloimmunization is approximately 25-times higher in HPA-1

Understanding the influence of land use/land cover (LULC) on stream water quality (WQ) is essential for conservation of ecosystem services (ES) and informing sustainable land use planning. This study investigates the influence of LULC on stream WQ during the wet and dry seasons 2022–2024, across two representative watersheds in the Bolivian central Andes, a region with marked physical gradients, a

En genomgripande översikt av fascismens historia och idéflora, med fokus på Mussolinis Italien.

En grundlig genomgång och översikt av den nazistiska förintelsepolitiken, framför allt mot judar, under andra världskriget.

False lumen management of chronic aortic dissections has evolved during the past decade. Thoracic endovascular aortic repair (TEVAR) continues to be the mainstay of endovascular dissection treatment and relies on the adequate sealing of the proximal entry tear. However, TEVAR alone often fails to achieve aortic remodeling due to persistent distal retrograde perfusion of the false lumen with contin

OBJECTIVE: Data on females managed with fenestrated or branched endovascular aortic arch repair (FB-Arch) are limited. This study aimed to present the 30 day and follow up outcomes of FB-Arch in female patients.METHODS: A retrospective analysis (1 January 2011 to 31 March 2024) among four European aortic centres was conducted according to STROBE guidelines. Consecutive female patients managed with

OBJECTIVE: This systematic review aimed to assess the clinical outcomes of branched endovascular aneurysm repair (BEVAR) with inner branches (iBEVAR) and inner/outer branches (oBEVAR).DATA SOURCES: A systematic literature review was performed using the electronic bibliographic databases MEDLINE, Embase, Scopus, Web of Science, and the Cochrane Library up to May 2024.REVIEW METHODS: The review was

The current study presents a comprehensive research on the design, optimization, and numerical analysis of axial turbines, addressing the urgent need for more efficient and environmentally friendly energy conversion systems. With turbines being central to power generation, aviation, and marine propulsion, enhancing their performance is crucial to reducing fuel consumption, operational costs, and g