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Combustion of micron-sized Al-Mg alloy wires in hot H2O/O2/N2 flows

The use of aluminum-magnesium (Al-Mg) alloy particle as energetic additive in solid propellants was previously shown to have many advantages over pure Al particle, such as relatively low ignition temperature, high reaction rate and low particle agglomeration rate. In this paper, the combustion of Al-Mg alloy in hot H2O/O2/N2 flows was experimentally studied using wires with a diameter of 200 µm. T

Ten new paediatric emergency medicine commandments

AIM: We suggest the top ten tips that any clinician working in a pediatric emergency department should always keep in mind.METHODS: A literature review was conducted using, as a starting point, the previously published Ten Commandments for Emergency Medicine, Pediatric Emergency Medicine, and Perinatal Medicine.RESULTS AND CONCLUSION: A standard curriculum for pediatric emergency physicians is lac

A review of the Kaczmarz method

The Kaczmarz method is an iterative method for solving linear systems of equations. The Kaczmarz method has been around since it was developed by Kaczmarz 1937. The main idea behind the original Kaczmarz method is to orthogonally project the previous x_k onto the solution space given by a row of the system. The block Kaczmarz on the other hand orthogonally projects the previous x_k onto the soluti

Jumping the hurdles of moral progress

In their work on moral progress, Dan Egonsson and Toni Rønnow-Rasmussen both express a worry concerning possible problems caused by value incommensurability. I show that this worry can be alleviated. This is done by explicating the structure of the concept of moral progress and the structure of value comparatives. With a better understanding of the relevant concepts, it becomes clear that value in

Zizkov Station

Här beskrivs min strategi för att omvandla en befintlig byggnad kallad Žižkov Freight Railway Station till en multifunktionell byggnad. Denna komplex är belägen i Prag, Tjeckien, och byggdes färdigt 1936. Byggnaden är ett utmärkt exempel på funktionalism från tiden och regionen, men tyvärr har komplexet delvis varit övergivet sedan 2002. Därmed finns det flera tecken på försämring genom hela byggnThis document details my approach to turning an existing building called Žižkov Freight Railway Station into a multifunctional building. This complex is located in Prague, Czech Republic, and dates from the year 1936. It is an excellent example of functionalism from the time and region but, sadly the complex has partially been abandoned since 2002. Consequently, there are multiple signs of deterio

Differences and similarities between the EULAR/ASAS-EULAR and national recommendations for treatment of patients with psoriatic arthritis and axial spondyloarthritis across Europe

This is the first report comparing EULAR and national treatment recommendations for PsA patients across Europe, and the first this decade to compare ASAS-EULAR and national treatment recommendations in axSpA patients. An electronic survey was completed from October 2021–April 2022 by rheumatologists in 15 European countries. One and four countries followed all EULAR and ASAS-EULAR recommendations,

Putting appraisal in context : Appraisal of climate anxiety and the role of nature connectedness

Global climate change has increasing detrimental effects on mental health (e.g., in the form of climate anxiety), both through direct exposure to its consequences (e.g., extreme weather) and through indirect exposure (i.e., the social representation of climate change without direct contact to its physical consequences). To help people cope with the anxious response, nature connectedness is suggest

Application of composite cryogels in downstream processing - A review

The demand for efficient separation and purification methods has inspired the development of new techniques and materials for bioseparation. Conventional chromatographic columns are efficient but have difficulties capturing targets from complex media or purify large products. To address this issue, new materials that can directly purify targets from particulate-containing fluids are needed. Cryoge

Design of stochastic trigger boundaries for rural communities evacuating from a wildfire

Well-planned evacuation is an effective and often necessary tool to protect life in communities threatened by wildfire. In previous incidents, community evacuations have been called too late resulting in entrapment, such as in Mati, Greece in 2018. The most reliable method to determine the safe time to call an evacuation is through trigger boundaries, perimeters on the landscape surrounding a comm

Low-power Acceleration of Convolutional Neural Networks using Near Memory Computing on a RISC-V SoC

The recent peak in interest for artificial intelligence, partly fueled by language models such as ChatGPT, is pushing the demand for machine learning and data processing in everyday applications, such as self-driving cars, where low latency is crucial and typically achieved through edge computing. The vast amount of data processing required intensifies the existing performance bottleneck of the da

Prolonged deep-ocean carbonate chemistry recovery after the Paleocene-Eocene Thermal Maximum

The Paleocene-Eocene Thermal Maximum (PETM) is a hyperthermal event at ∼56 Ma ago, caused by rapid and massive carbon releases into the ocean-atmosphere system. Currently, the PETM ocean acidification is mainly quantified in the surface ocean. By contrast, PETM carbonate chemistry changes of the deep ocean, a larger carbon reservoir, are largely qualitatively constrained by sedimentary calcium car

Fast, automated, continuous energy scans for experimental phasing at the BioMAX beamline

In X-ray macromolecular crystallography (MX), single-wavelength anomalous dispersion (SAD) and multi-wavelength anomalous dispersion (MAD) techniques are commonly used for obtaining experimental phases. For an MX synchrotron beamline to support SAD and MAD techniques it is a prerequisite to have a reliable, fast and well automated energy scan routine. This work reports on a continuous energy scan

Reanalysis of neutron-capture elements in the benchmark r-rich star CS 31082-001

We revisit the abundances of neutron-capture elements in the metal-poor ([Fe/H] = -2.9) r-process-rich halo star CS 31082-001. Partly motivated by the development of the new near-ultraviolet Cassegrain U-band Efficient Spectrograph for the Very Large Telescope, we compiled an expanded line list for heavy elements over the range 3000-4000 Å, including hyperfine structure for several elements. Combi

Mitochondrial heteroplasmic shifts reveal a positive selection of breast cancer

BACKGROUND: Breast cancer is, despite screening, not always detected early enough and is together with other tumor types known to shed genetic information in circulation. Unlike single-copy nuclear DNA, mitochondrial DNA (mtDNA) copies range from 100s to 10,000s per cell, thus providing a potentially alternative to identify potential missing cancer information in circulation at an early stage.METH

Argonaute, Vault, and Ribosomal Proteins Targeted by Autoantibodies in Systemic Lupus Erythematosus

OBJECTIVE: To expand, in an unbiased manner, our knowledge of autoantigens and autoantibodies in patients with systemic lupus erythematosus (SLE) and evaluate their associations with serological and clinical variables. METHODS: Human proteome arrays (> 21,000 proteins) were screened with serum from patients with SLE (n = 12) and healthy controls (n = 6) for IgG and IgA binding. Top hits were valid

Use of metal nanoparticles in agriculture. A review on the effects on plant germination

Agricultural nanotechnology has become a powerful tool to help crops and improve agricultural production in the context of a growing world population. However, its application can have some problems with the development of harvests, especially during germination. This review evaluates nanoparticles with essential (Cu, Fe, Ni and Zn) and non-essential (Ag and Ti) elements on plant germination. In g

The ‘seed-fern’ Lepidopteris mass-produced the abnormal pollen Ricciisporites during the end-Triassic biotic crisis

The end-Triassic mass extinction (ETE; ~201.6 million years ago) led to dramatic changes in terrestrial ecosystems including the extinction of several seed-plant groups. Among the most intriguing features in the vegetation signal is the dominance of the peculiar pollen, Ricciisporites tuberculatus Lundblad, across large areas of the Northern Hemisphere immediately prior to and during the ETE. The