Sökresultat

Hydrogen energy plays a pivotal role in the sustainable energy transition. Methanol steam reforming offers an efficient route for decentralized hydrogen production, yet catalyst limitations persist. This work employs entropy engineering to design lanthanide perovskite catalysts via sol-gel synthesis. Structural analyses reveal entropy-driven lattice distortion, enhanced disorder, and elevated oxyg

Histatins are a family of multifunctional, cationic histidine-rich saliva peptides. The most prominently represented are Histatin 1, Histatin 3, and Histatin 5. Despite considerable similarities in primary structure, the three members are known to display varied antimicrobial properties and healing abilities. This study aims to provide a detailed structural comparison of Histatin 1, Histatin 3, an

Using a mixed-methods approach, we assessed understanding of risks from exposure to the non-threshold carcinogen hexavalent chromium (Cr(VI)) among workers (n = 113) and occupational health and safety managers (n = 13) at 14 worksites with potential exposure to Cr(VI). We found that 55% of the workers had a measurable concentration of inhalable Cr(VI), with 19% exceeding 1 µg/m3, a level that corr

In this work, we have studied how the choice of the continuous phase oils affects droplet-internal acoustic manipulation and mapped the acoustic properties of the selected oils to evaluate their compatibility with droplet acoustofluidic methods. The selection of continuous phase included hydrocarbon, fluorinated, and silicone oils. To map the acoustic properties of the oils, we measured their spee

Climate change is already impacting our environment and health, with rising sea levels, extreme weather, and higher temperatures. Greenhouse gas levels are at their highest in three million years, making climate-related health risks increasingly urgent. Heatwaves, wildfires, and floods lead to mortality, trauma, and non-communicable diseases both in the short and long term. Climate change also alt

We study correlations in the prepare-and-measure scenario when quantum communication is constrained by photon-number statistics. Such constraints are natural and practical control parameters for semi-device-independent certification in optical platforms. To analyse these scenarios, we show how semidefinite programming relaxations for noncommutative polynomial optimization can be used to bound the

Objectives There is a lack of knowledge about whether occupational exposures increase the risk of emphysema, especially in never-smokers. Our objective was to determine if occupational exposures are associated with emphysema and impaired diffusing capacity. Methods In the Swedish CArdioPulmonary bioImage Study (SCAPIS), persons from the general population aged 50–64 answered a questionnaire and un

Heart and lung transplantation remain the primary treatments for end-stage organ failure; yet organ shortages and ischemia-reperfusion injury (IRI) limit their success. Extended criteria donors (ECDs) have expanded the donor pool; however, prolonged cold ischemia times increase the risk of primary graft dysfunction (PGD). Static cold storage (SCS), the standard organ preservation method, is subopt

Background: Obstetrical anal sphincter injuries are complications of vaginal birth that have the potential to cause substantial maternal morbidity. Predicting these injuries might help to improve maternal care as well as antenatal counseling and patient education. Previous attempts to create prediction models have in many cases involved variables only known postpartum, which limits their use in an

Antibiotic persistence arises when a subset of cells in an otherwise susceptible bacterial population temporarily exhibits elevated tolerance to bactericidal antibiotics. While significant progress has been made in elucidating persister mechanisms, much of this research has focused on Gram-negative bacteria, and these findings are not always applicable to Gram-positive species. This study explores

Introduction: Extrauterine pregnancy (EP), represents a significant challenge in reproductive medicine, manifesting in approximately 2% of all pregnancies, primarily implanting within the fallopian tubes (95%). Surgery remains a cornerstone in the therapeutic options for ectopic pregnancies. The most common surgical approach at the moment is laparoscopy. However a relatively new surgical technique

Chronic obstructive pulmonary disease (COPD) and lung cancer (LC) are recognized as severe diseases of the lungs and are closely linked to cigarette smoking and environmental pollution and share common mechanisms such as oxidative stress, inflammation, matrix degradation, and airway remodeling. Epidermal growth factor receptor (EGFR), a transmembrane receptor featuring an extracellular ligand bind

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

Introduction: Mycobacteria have a unique hydrophobic membrane with several lipid-enriched layers that are low in permeability, setting them apart from other bacteria. This complex structure, consisting of three distinct layers is crucial for cell growth, virulence, and providing a barrier to antibiotics. Previously, we identified a plectasin variant, NZX, which showed activity against Mycobacteriu

This study introduces a novel approach for synthesising a surface-imprinted polymer-ordered mesoporous silica adsorbent, known as SiO2@MIPs-CAPcr, with high selectivity for chloramphenicol (CAP) adsorption by employing an activator that was regenerated by electron atom transfer radical polymerisation (ARGET ATRP). Optimal synthesising conditions for SiO2@MIPs-CAPcr have been determined, including

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

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

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

BACKGROUND: Chronic obstructive pulmonary disease (COPD) has many known dysregulated inflammatory proteins. A disintegrin and metalloproteinase 17 (ADAM17) is a protease that sheds several proteins involved in COPD pathogenesis. The aim was to investigate ADAM17, its phosphorylated form (pADAM17) and its substrates in bronchoalveolar lavage (BAL) and blood from COPD and control subjects. METHODS: