Filetype
Nuclear star clusters (NSCs) are among the densest stellar systems in the Universe and are found at the centres of many spiral and elliptical galaxies, and up to 40 percent of dwarf galaxies. However, their formation mechanisms, and possible links to globular clusters (GCs), remain debated. This paper uses cosmological simulations of dwarf galaxies at a spatial resolution of pc to present a new fo
Background and purpose: Angiosarcoma (AS), a rare and highly malignant tumour, can manifest spontaneously (primary AS, pAS) or secondary to previous radiation, exposure to chemical agents or Stewart-Treves syndrome (secondary AS, sAS). The aim of this study was to characterise the clinical presentation, management, treatment and outcome—including local recurrence, metastasis and overall survival—a
Background Patients with acute coronary syndrome (ACS) are often admitted to monitored wards due to the risk of complications. Several risk prediction scores exist, but their use in the emergency department (ED) is limited. We aimed to compare the ability of existing risk scores with a new logistic regression model in predicting complications in ACS patients. Methods This was a secondary analysis
Introduction: The transition from pediatric to adult healthcare represents a crucial period for adolescents and youth living with HIV. When this healthcare transition is not properly managed, it can result in negative outcomes such as loss to follow-up (LTFU), increased morbidity, and mortality. Therefore, it is essential to estimate the incidence rate and identify predictors of loss to follow-up
Solar energy is an important source of clean energy to combat climate change issues that motivate the establishment of solar farms. Establishing solar farms has been considered a proper alternative for energy production in countries like Mozambique, which need reliable and clean sources of energy for sustainable development. However, selecting proper sites for creating solar farms is a function of
PurposeTo present baseline characteristics and to present the perioperative corneal thickness during corneal crosslinking (CXL) treatment for progressive keratoconus and to describe how the addition of sterile water (SW) efficaciously can maintain the corneal thickness. The treatment efficacy will be evaluated when the 1-year follow-up is complete.MethodsA randomised clinical study using epitheliu
Small interfering RNAs (siRNAs) are a rapidly growing class of oligonucleotide therapeutics that modulate gene expression by inducing targeted mRNA degradation. siRNAs are potent and their effect is long-lasting, making them promising candidates for chronic neurodegenerative disease. However, siRNAs can elicit both on- and off-target toxicity, and while acute neurotoxicity has been characterized,
När ett nedslag gräver upp och modifierar Mars yta, genom att medföra material från djupare delar till ytan, öppnar det fönster ner till äldre geologi. Att försöka förstå ytegenskaper på Mars och hur källmaterialet beter sig vid ett nedslag kräver en metod från flera perspektiv. Tidigare forskning har främst fokuserat på ejecta och ejektamorfologi som en indikator på ytegenskaper. Däremot kan ävenWhen an impact excavates and modifies the Martian surface, by bringing deeper lying material to the surface, it opens a window into past geology. Trying to understand surface properties on Mars and how target material behaves during impact requires a multi-view approach. Previous research has focused mainly on ejecta emplacement and morphologies as a proxy for surface properties. However, interior
Sun-like stars are well represented in the solar neighbourhood but are currently underutilized, with many studies of chemical and kinematic evolution focusing on red giants (which can be observed further away) or turn-off stars (which have well-measured ages). Recent surveys (e.g. GALAH) provide spectra for large numbers of nearby Sun-like stars, which provides an opportunity to apply our newly de
We present MixtureVitae, an open-access pretraining corpus1 built to minimize legal risk while providing strong downstream performance. MixtureVitae follows a permissive-first, risk-mitigated sourcing strategy that combines public-domain and permissively licensed text (e.g., CC-BY/Apache) with carefully justified low-risk additions (e.g., government works and EU TDM-eligible sources). MixtureVitae
The light dark matter experiment (LDMX) is a planned experiment to search for dark matter (DM) in the partly unexplored lower region of the mass range motivated by the thermal freeze-out mechanism. Electrons will be accelerated toward a tungsten target, and as they scatter off a nucleus, production of DM may occur, which will be inferred from a significant amount of missing energy in the detector.
BackgroundPreservatives are important and frequent skin sensitizers, found in a wide range of products for personal and occupational use. According to the European legislation, some cosmetic ingredients are restricted in terms of quantity and a detailed list of ingredients must be present on the product or packaging. ObjectivesTo examine the use of preservatives in common cosmetics on the Israeli
Popular Abstract in Swedish Avregleringen av elmarknaden uppmuntrar kraftbolag och oberoende kraftproducenter till att driva sina kraftverksanläggningar på ett marknadsorienterat sätt. För att behålla de ekonomiska marginalerna på plussidan så har de mest populära åtgärderna varit att förbättra elverkningsgraden genom ändringar i hårdvaran samt höja totalverkningsgraden genom till exempel samproduThe deregulation of the electricity market drives utilities and independent power producers to operate heat and power plants as profit centers. In order to keep the economic margins on the credit side, the preferred measures have been to improve the electrical efficiency through changes in the hardware and boost the overall efficiency through e.g. combined heat and power (CHP) generation. The bett
The hydrophilic/hydrophobic properties of the membrane material have an important influence on the membrane flux reduction when treating solutions containing hydrophobic solutes. Different methods of measuring the hydrophobic properties of membranes have been evaluated; measurement of the contact angle being the most commonly used method. In this investigation the flux reduction of eight membranes
Popular Abstract in Swedish Ett av de viktigaste målen för astronomin är att förstå var vi kommer ifrån. Det är naturligtvis många steg som skall förstås, och vart och ett av dessa steg i människans för-förhistoria är komplicerat, så man skall inte förvänta sig att en enskild doktorsavhandling behandlar mer än ett litet hörn av ett av dessa steg. Mitt bidrag gäller förståelsen av hur vår egen galIn order to understand the formation and evolution of the Galaxy it is imperative to know when different components formed. This means at the most basic level that we need to know the ages of stars. The present work demonstrates the many problems inherent in determining the ages of stars through comparison with stellar evolutionary models. Furthermore, solutions to some of these problems are prese
Volatiles are efficient mediators of chemical communication acting universally as attractant, repellent or warning signal in all kingdoms of life. Beside this broad impact volatiles have in nature, scents are also widely used in pharmaceutical, food and cosmetic industries, so the identification of new scents is of great industrial interest. Despite this importance as well as the vast number and d
This paper presents the development of a system dynamic model to simulate and analyze desertification. The human-environment coupled model integrates socio-economic drivers with bio-physical drivers of biomass production, land degradation and desertification. It is based on the UN and GEF definitions of desertification. It illustrates the concept of desertification through differential equation an
Dasatinib, a broad-spectrum tyrosine kinase inhibitor (TKI), predominantly targets BCR-ABL and SRC oncoproteins and also inhibits off-target kinases, which may result in unexpected drug responses. We identified 22 patients with marked lymphoproliferation in blood while on dasatinib therapy. Clonality and immunophenotype were analyzed and related clinical information was collected. An abrupt lympho
Popular Abstract in German Einführung in die Astrometrie Ziele Astrometrie ist das Forschungsfeld der Astronomie, das sich mit der Vermessung der Positionen von Sternen und anderen Himmelskörpern beschäftigt. Das klingt zunächst vielleicht trivial, aber die unglaublich großen Entfernungen machen astrometrische Messungen äußerst schwierig. Eins der Ziele ist es, eine dreidimensionale Karte der SteAstrometry aims at producing a three-dimensional map of positions and motions of stars and other celestial bodies in a consistent coordinate system covering the whole sky. This is best done from space, which provides a way of scanning the entire sky by a single instrument in a thermally stable environment. Space astrometry was pioneered by the Hipparcos satellite (1989–1993), and the successor mis
