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Development of an All-Marine 3D Printed Bioactive Hydrogel Dressing for Treatment of Hard-to-Heal Wounds

Current standard wound care involves dressings that provide moisture and protection; however, dressings providing active healing are still scarce and expensive. We aimed to develop an ecologically sustainable 3D printed bioactive hydrogel-based topical wound dressing targeting healing of hard-to-heal wounds, such as chronic or burn wounds, which are low on exudate. To this end, we developed a form

Geosystem services from the subsurface : A literature review and a proposed set of indicators tailored to a Swedish setting

In this study, a literature review was conducted to identify indicators that can be utilised to assess and visualise the potential of the geophysical environment to deliver geosystem services. The literature review identified 24 studies and 22 technical reports, resulting in a list of 75 geosystem services indicators for 23 geosystem services associated with the subsurface. Building upon these fin

Design, integration and characterization of a Mach 5 axisymmetric contoured nozzle for the VKI-H3 hypersonic tunnel

In pursuit of advancing the capabilities of ground testing facilities, a complete road map for broadening operational range of the H3 hypersonic blowdown wind tunnel, operated at the von Karman Institute for Fluid Dynamics (VKI), with the addition of a new Mach 5 contoured nozzle is constructed. The main characteristics of the facility are presented. The supersonic ejector is identified as a criti

Effect of intermediate polarity molecule on phase transitions and bilayer structure in phospholipid membranes

Lipid-based formulations are widely utilized in various applications including food, cosmetics, and pharmaceuticals. The properties of these formulations can be influenced by changes in the external environment. As one example, dehydration can induce phase changes and alter the structural organization and molecular dynamic in the formulation, which potentially compromises the reversibility to a di

Multi modal time-resolved infrared and X-ray spectroscopic operando studies of the CO oxidation and NO reduction reactions on Rh(111)

We present an operando study where Ambient-Pressure X-ray Photoelectron Spectroscopy (AP-XPS), Polarization Modulation-InfraRed Reflection Absorption Spectroscopy (PM-IRRAS) and Mass Spectrometry (MS) were employed simultaneously with sub-minute time resolution to monitor the CO oxidation and NO reduction reactions on Rh(111). AP-XPS is a powerful tool to follow reactions at the surface-gas interf

Freeze-dried cake structural and physical heterogeneity in relation to freeze-drying cycle parameters

Freeze-drying is the preferred method to manufacture proteins in their solid state thus the understanding of the relationship between cycle parameters and cake properties remains of great interest. The present study aims to investigate the influence of the freezing conditions in the material properties at different layers throughout the dried structure, in the presence and absence of a protein. Pl

Wastefulness in sequential school choice with public and private schools

Using data from the Swedish municipality of Botkyrka, this paper quantifies the trade-off between non-wastefulness and truthfulness in sequential admission systems for public and private schools. The results show that minimizing seat waste while preserving truthfulness is possible by restricting first-round applications to either private or public schools, depending on which type of school that is

Multimorbidity is associated with risk of incident venous thromboembolism – A nationwide proof-of-concept study

Background: Multimorbidity, i.e. two or more non-communicable diseases (NCDs), has been associated with venous thromboembolism (VTE), but whether multimorbidity is a predictor for incident VTE is unknown. Aims: To examine the associations between multimorbidity and its severity with risk of incident VTE, and examine the association between nine different disease clusters and incident VTE. Methods:

2D surface optical reflectance for use in harsh reactive environments

In recent years, studies of surfaces at more realistic conditions has advanced significantly, leading to an increased understanding of surface dynamics under reaction conditions. The development has mainly been due to the development of new experimental techniques or new experimental approaches. Techniques such as High Pressure Scanning Tunneling/Force Microscopy, Ambient Pressure x-ray Photo emis

Recruitment, follow-up and survival in an 11-country cohort study of patients at the end of life and their relatives

Background Large, international cohort studies generate high-level evidence, but are resource intense. In end-of-life care such studies are scarce. Hence, planning for future studies in terms of data on screening, recruitment, retention and survival remains a challenge. Objectives The aim was to describe recruitment, follow-up and survival in a multinational study of patients’ and relatives’ expec

Effects of resource security concerns on Nordic countries’ approach to the circular economy of metals

The circular economy (CE) transformative model depends on policy design and implementation in multiple socio-economic contexts. Temporal priorities based on security concerns can stimulate risk-averse circular policies that compromise achieving Sustainable Development Goal 12 for responsible consumption and production. However, the CE literature lacks empirical evidence on how these concerns affec

Long-Term Clinical Outcomes After IFR- vs FFR-Guided Coronary Revascularization : Insights From the SWEDEHEART National Registry

Background: Long-term data on safety and efficacy of instantaneous wave-free ratio (IFR) vs fractional flow reserve (FFR) in guiding percutaneous coronary intervention (PCI) is lacking. Objectives: This study sought to evaluate the 5-year clinical outcomes of IFR- vs FFR-guided PCI in a real-world setting. Methods: We assessed the 5-year outcomes of all patients undergoing IFR or FFR assessment be

Measurements of Gravitational Attractions at small Accelerations

Gravitational interactions were studied by measuring the influence of small external field masses on a microwave resonator. It consisted of two spherical mirrors, which acted as independent pendulums individually suspended by strings. Two identical field masses were moved along the axis of the resonator symmetrically and periodically between a near and a far position. Their gravitational interacti

Promise or Peril: How AI Is Discussed in International Environmental Negotiations

Articial intelligence (AI) is widely discussed across policy sectors, including global environmental politics. At the 28th United Nations Climate Change Conference in 2023 (COP28), national governments decided to explore AI’s role in climate solutions and its associated challenges and risks through the #AI4ClimateAction Initiative. In March 2024, the UN General Assembly adopted a resolution to “se

Four-year secukinumab treatment outcomes in European real-world patients with axial spondyloarthritis and psoriatic arthritis

Objectives: In axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) patients initiating secukinumab, we aimed to assess retention rates and proportions of patients achieving remission and low disease activity (LDA), according to disease activity measures and patient-reported outcomes at 24 and 48 months. Patients and methods: Data on patients with axSpA and PsA who initiated secukinumab t

The Social Construction of Reproduction

In recent decades, ethicists have engaged with new developments in human reproductive technologies from a variety of angles. Yet there has been relatively little effort to problematize the concept of reproduction itself. In this paper, we examine the question of what reproduction is and its relationship with biology. We show that reproduction is commonly assumed to entail biological parenthood—an

Estimation of the absorbed dose in simultaneous digital breast tomosynthesis and mechanical imaging

Purpose: Use of mechanical imaging (MI) as complementary to digital mammography (DM), or in simultaneous digital breast tomosynthesis (DBT) and MI - DBTMI, has demonstrated the potential to increase the specificity of breast cancer screening and reduce unnecessary biopsies compared with DM. The aim of this study is to investigate the increase in the radiation dose due to the presence of an MI sens

Simulation of heterogeneity within breast lesions based upon Perlin noise

Steadily increasing use of computer-generated models sets high demands on the realistic representation of breast tissue and abnormalities. Previously, we demonstrated the use of Perlin noise to simulate breast lesions. Now, we expand the previous model by simulating heterogeneous lesion composition. We demonstrate a new approach to simulating 3D soft tissue lesions, with additional benefits of Per