Search results

Filter

Filetype

Your search for "*" yielded 546645 hits

Digital Public Diplomacy and the Illusion of the Online/Offline Divide

The rise of social media platforms in the early 2010’s marked a shift in public diplomacy practice resulting in the emergence of “digital public diplomacy.” This chapter explores the evolution of digital public diplomacy by emphasizing digital culture as a significant source of social and political change in a broader societization of diplomacy. Moving beyond a narrow focus on digitalization, it a

Reduced protein solubility - cause or consequence in amyloid disease?

In this perspective, we ask the question whether the apparently lower solubility of specific proteins in amyloid disease is a cause or consequence of the protein deposition seen in such diseases. We focus on Alzheimer's disease and start by reviewing the experimental evidence of disease-associated reduction in the measured concentration of amyloid β peptide, Aβ42, in cerebrospinal fluid. We propos

Improving taxonomic inference from ancient environmental metagenomes by masking microbial-like regions in reference genomes

Ancient environmental DNA is increasingly vital for reconstructing past ecosystems, particularly when paleontological and archaeological tissue remains are absent. Detecting ancient plant and animal DNA in environmental samples relies on using extensive eukaryotic reference genome databases for profiling metagenomics data. However, many eukaryotic genomes contain regions with high sequence similar

Toward an integrated research agenda for cryospheric change : a socio-glaciology approach

Non-technical summary. As glaciers shrink and disappear, the benefits they provide to people may also be fading. This makes it more important than ever to look closely at how melting glaciers affect both the environment and the communities that depend on them. To truly understand what is being lost- or even gained- we need to study glaciers from many angles. This includes looking at the science of

Improved droplet elongation model and value for surface tension of AuSi

Surface tension is crucial for nanowire vapor liquid solid (VLS) growth models and simulations of growth under external stimuli. A promising method involving imaging droplet deformation under an external electric field has previously been used to report the surface tension of the AuSi eutectic catalyst on Si-nanowires. However, simplified assumptions in this approach led to a significantly lower v

Challenges in Elucidating HIV-1 Genetic Diversity in the Middle East and North Africa : A Review Based on a Systematic Search

The extensive genetic diversity of HIV-1 represents a major challenge to public health interventions, treatment, and successful vaccine design. This challenge is particularly pronounced in the Middle East and North Africa (MENA) region, where limited data among other barriers preclude the accurate characterization of HIV-1 genetic diversity. The objective of this review was to analyze studies cond

The equivocal opposite effects of lower and higher body mass index at diagnosis on radiographic joint damage progression in early rheumatoid arthritis : an inception cohort study over 15 years

Objective To investigate the effect of Body Mass Index (BMI) on long-term radiographic damage in an inception rheumatoid arthritis (RA) cohort. Methods The study population, n=1813, originated from the observational Better AntiRheumatic FarmacoTherapy cohort. X-rays of hands and feet at inclusion, 1, 2, 5, 8 and 15 years were quantified for erosion score (ES), joint space narrowing (JSN) and the s

Lower dislocation rate in total hip arthroplasty for femoral neck fracture after transition from a conventional cup to a dual mobility cup

Introduction: Dislocation is a major complication of total hip arthroplasty (THA) for femoral neck fractures (FNFs). Dual mobility cups (DMCs) are in clinical practice for patients at risk of dislocation in primary-and revision arthroplasty. This study investigated whether changing routines from conventional THA (cTHA) to DMC for fracture patients at our orthopaedic unit resulted in a reduced disl

Chromatin interaction-based annotation of regulatory elements reveals dynamic promoter-enhancer interactions in lymphocyte development

Stage- and lineage-specific gene expression patterns are controlled by a complex interplay between transcription factors, the epigenetic landscape, and the three-dimensional (3D) structure of the DNA. The 3D structure allows for the formation of DNA loops that juxtaposition distal regulatory elements to the promoters, allowing for tight control of gene expression. Developing a tool to facilitate t

Hydrogenation of CO2 to Methanol by a Nickel Pincer Catalyst and Mechanistic Investigations by Density Functional Theory Studies

The hydrogenation of CO2 into methanol by a nickel pincer catalyst has been studied in both aqueous and solid–gas phases. Hydrogenation occurs at the moderate temperatures of 60–95 °C. The solid–gas phase reaction is found to be more efficient than the aqueous reaction. At 95 °C and 1 MPa of H2/CO2 (3:1), 18 μmol of methanol is generated in the optimized solid–gas phase reaction versus 10 μmol in

Seasonal analysis and environmental risk assessment of selected emerging pollutants in the Vaal River catchment area of South Africa

The presence of pharmaceuticals, especially antibiotics, in aquatic environments can significantly contribute to the rise of antibiotic resistance, presenting a critical global public health challenge. This study investigates the presence of four selected antibiotics and an antiretroviral drug (nevirapine) in the Vaal River in South Africa. Grab samples collected at nine sampling sites across four

Modified ZymoBIOMICS™ DNA/RNA Miniprep Kit for parallel extraction of DNA and RNA from peat soil v1

Modified ZYMO DNA/RNA miniprep extraction protocol written in a user friendly way to reduce in-process-decisions and process time. Sample type is organic soil, peat, from a degraded rich fenThis protocol includes two modifications to tackle clogged filters. Samples were centrifuged for 45 seconds instead of 30 seconds in first pass through filters as 100 ul to 200 ul sample remained trapped above

Modified ZymoBIOMICS™ DNA/RNA Miniprep Kit for parallel extraction of DNA and RNA from peat soil

Modified ZYMO DNA/RNA miniprep extraction protocol written in a user friendly way to reduce in-process-decisions and process time. Sample type is organic soil, peat, from a degraded rich fenThis protocol includes modifications to tackle clogged filters. Samples were centrifuged for 45 seconds instead of 30 seconds in first pass through filters as 100 ul to 200 ul sample remained trapped above filt

Air–Water Interfacial Adsorption of the Chaperone Protein DNAJB6b

Aberrant protein aggregation into amyloid fibrils is often catalyzed by interfaces. Therefore, it is important to characterize the surface activity of chaperone proteins having the ability to suppress amyloid formation. The air–water interface is of large practical significance in experimental setups used to study aggregation kinetics in vitro, but in addition, the binding of chaperones to hydroph

Building a community lightsource meta-infrastructure to accelerate battery innovation in Europe

Breakthroughs in battery research are imperative to provide society with batteries that are safe and sustainable, have a high energy density, and have a long cycle life at low cost. Recent advances in research methodologies, the emergence of new market opportunities, and strategic funding schemes have allowed not only large, but also small companies, universities, and public research organizations

Modelling flow in hydrocyclones using physics-informed neural networks

Hydrocyclones are important pieces of equipment used within the mineral processing industry, where they are used for sorting ore particles suspended in water based on their size. The turbulent flow within a hydrocyclone is today usually modelled using demanding computational fluid dynamics (CFD) simulations. In this thesis, we explore the use of physics-informed neural networks (PINNs) as an alter

Machine Learning for Anti-Poaching: Decision Tree Applications on the Savannah

The use of technology, specifically machine learning, to address complex issues in developing regions has become increasingly prominent. In the context of wildlife conservation, combating poaching has emerged as a significant application of such technology. This research project aims to develop machine-learning-based low-cost antipoaching solutions. It presents three case studies, each exploring a