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Controlled resistive loads can contribute to damping of electro-mechanical oscillations. This paper presents an on-off damping controller for a single machine system. It was used at a field test in Southern Sweden to damp oscillations of a 0.9 MW hydro power generator. The controller used estimated machine frequency as input and controlled a 20 kW resistive load via thyristor switches. The field m
INTRODUCTION: As more patients survive coronary events, the prevalence of patients with refractory angina pectoris is increasing. The aim was to evaluate the effects of enhanced external counterpulsation (EECP) and spinal cord stimulation (SCS) and compare with optimal medically treated patients with refractory angina. METHODS: 153 patients with refractory angina were treated with either EECP, SCS
n this study, Jordanian feldspar from Wadi Al-Jayshiah area was invested to evaluate its applicability as raw material for ceramic and industries. The chemical analysis indicated that the average Fe2O3 content is 2.33%, which is very high, compared to commercial ceramic and glass grades feldspar. The SiO2 content in the Wadi Al-Jayshiah feldspar (67.96%) lies within the required amount in commerci
Disability due to acute low back pain (ALBP) runs parallel with distress and physical inactivity. If low back pain persists, this may lead to long-term sick leave and chronic back pain. This prospective randomized study evaluated the effect on physical activity and on the course of ALBP of two different treatment advices provided in routine care.
Understanding the structure of metal-ligand complexes is essential for catalyst design, materials development, and biochemical modeling. Metal carbonyls are especially relevant due to their diverse structures and electronic features. Here, we benchmarked seventeen density functionals (B3LYP, BP86, CAM–B3LYP, M06, M06L, PBE, PBE0, r2SCAN, r2SCAN–3c, revPBE, revTPSS, RPBE, TPSS, TPSS0, TPSSh, (Formu
Background: Detecting and monitoring monoclonal free light immunoglobulin chains in serum is important for managing patients with B-cell neoplasms. Established methods have relied on immunochemistry, with monoclonality determined through an abnormal ratio of free kappa and lambda chains and an increased concentration of the involved chain. This indirect approach has limitations. Mass spectrometric
The large-scale applications of anion exchange membrane water electrolysis (AEMWEs) and zinc–air batteries (ZABs) are observably limited by the lack of highly active, multifunctional, and industrially applicable electrocatalysts. In this work, we report a solvent-free rapid pyrolysis strategy that successfully prepares a composite material of Pt8V–V2O3 heterostructure supported on nitrogen-doped p
Performance featuring spherical amplification.Aktionshalle Stanzerei, Baden (CH)Ensemble für neue Musik Zürich06/11/2024From the Program:Haas, Lorenz (*1968, CH) – Nichts Schöneres (a Schumann song recital in fourteen scenes for seven instruments and voice) [2024]
The aim of this study was to assess to what extent receptive vocabulary could be explained by morphological knowledge, language majority/minority background and socioeconomic status (SES) for Swedish 8–11-year-old children. A total of 89 children participated, of whom n = 47 were L1 speakers (language majority) and n = 42 were L2 speakers (language minority). Morphological knowledge (MK) was asses
Background: Kidney transplant recipients after kidney transplantation may develop transplant renal artery stenosis (TRAS). Multiple studies have sought to identify risk factors, yet the findings remain inconsistent. Methods: PubMed, Scopus, and Web of Science Core Collection were comprehensively searched to retrieve studies. The 1st screening phase required studies to be in English and evaluate pa
Background: The potential of generative artificial intelligence (genAI) tools, such as ChatGPT, is being increasingly explored in healthcare settings. However, the same tools also introduce significant cybersecurity risks that could compromise patient safety, data integrity, and institutional trust. This study aimed to examine real-world security breaches involving genAI and extrapolate their pote
The tax system is essential for financing our public welfare and the public sector. The tax system and its capacity to generate tax revenue typically reflect the structure of the economy and as the economy changes the tax system needs to adapt. This anthology brings together different perspectives on how digitalization changes or may change the conditions for how the tax ecosystem functions, from
Background: Virtual imaging trials (VITs) are in silico studies that simulate medical imaging and disease processes, offering a cost-effective and reproducible addition to traditional imaging trials. While VITs are well established in breast imaging, most existing implementations simulate imaging based on static anatomical models, capturing only a single time point. This limits their ability to st
Oily wastewater presents a serious environmental challenge, demanding sustainable and regenerative membrane technologies. Here, we report a green and scalable method for fabricating skin-replaceable cellulose membranes (SRC-M) from jute agro-waste, using a NaOH/urea activation route and argon-pressurized deposition onto ceramic supports. The resulting Cellulose II-based asymmetric membranes exhibi
This chapter will describe how educators can use uncertainty field books to explore students’ experiences as they navigate in complex and uncertain knowledge and information spaces, to engage others, and to start, grow and sustain movements for change using the groaning in the groan zone. In describing the field book, method and practice, but foremost students’ narratives, the chapter sets it up a
Background: Health system performance assessment helps identify areas for improvement and guides policy initiatives. Although well-validated indicators exist for measuring organ donation and transplantation performance at the facility level, consensus on indicators for assessing national programmes is lacking. The aim of this study was to develop a comprehensive scorecard for evaluating national o
Accumulation of acetate is a limiting factor in recombinant production of (R)-3-hydroxybutyrate (3HB) by Escherichia coli in high-cell-density processes. To alleviate this limitation, this study investigated two approaches: (i) deletion of phosphotransacetylase (pta), pyruvate oxidase (poxB), and/or the isocitrate lyase regulator (iclR), known to decrease acetate formation, on bioreactor cultivati
Chronic obstructive pulmonary disease (COPD) and asthma are heterogeneous respiratory diseases with overlapping symptoms but distinct underlying biology. As both diseases involve dysregulated inflammatory signalling, identifying disease- and compartment-specific pathways and biomarkers could improve diagnosis and treatment. A disintegrin and metalloproteinase 17 (ADAM17) is a key sheddase that inf
Introduction: Oesophageal resection carries significant morbidity and mortality. Artificial intelligence (AI) advances in medical research enable enhanced predictions, flexibility, and interpretability, especially for complex interactions and nonlinear relationships. Material and methods: We used a register-based case-control design nested within prospectively collected data from the Swedish Natio
