Sökresultat

In the standard Lambda cold dark matter paradigm, pure dark matter simulations predict dwarf galaxies should inhabit dark matter haloes with a centrally diverging density 'cusp'. This is in conflict with observations that typically favour a constant density 'core'. We investigate this 'cusp-core problem' in 'ultra-faint' dwarf galaxies simulated as part of the 'Engineering Dwarfs at Galaxy formati

All the cells of the individuals with phenotypes "p" y "Pk" lack the glucidic antigens of "public" blood groups. These subjects form natural and regular antibodies against the missing structures (anti-P, anti-PP1 y anti-PP1Pk) that agglutínate or hemolyze the red-blood cells of every individual, excepting those with the same phenotype. Due to the exceptional character of these pictures (a few indi

Microglia are activated in many neurological diseases and have been suggested to play an important role in the development of affective disorders including major depression. To investigate how microglial signaling regulates mood, we used bidirectional chemogenetic manipulations of microglial activity in mice. Activation of microglia in the dorsal striatum induced local cytokine expression and a ne

BACKGROUND: The ORBITA and ORBITA-2 trials have provided valuable insights into the effects of coronary revascularization in chronic coronary syndrome (CCS). However, uncertainties remain regarding the efficacy of revascularization on symptoms in large real-world populations. To evaluate the efficacy of revascularization, we used dispensed long-acting nitrates as a proxy for the presence of angina

Ischemia-reperfusion injury in transplantation remains a significant clinical challenge with regard to both short-term and long-term complications. In this study, we developed a new amphiphilic construct, polyethylene glycol (PEG)-conjugated lipids (PEG-LIPIDs), to be administered ex vivo intra-arterially to procured porcine kidney allografts before reperfusion. The aim was to create a protective

Myeloid cells, such as monocytes, are central in the immune response to infections. However, limited knowledge exists regarding the inflammatory response to Gram-positive anaerobic cocci (GPAC). To explore the ability of GPACs to induce monocyte activation, we compared two GPAC species, Parvimonas micra and Peptoniphilus harei, with E. coli, a major cause of bloodstream infections. We stimulated w

Virtual reality (VR) offers promising opportunities for procedural learning, particularly in preserving intangible cultural heritage. Advances in generative artificial intelligence (Gen-AI) further enrich these experiences by enabling adaptive learning pathways. However, evaluating such adaptive systems using traditional temporal metrics remains challenging due to the inherent variability in Gen-A

Purpose: As social infrastructures, public libraries are increasingly recognised as providing more than access to books and information; librarians’ work is importantly centred around practices of care. However, the ways in which they provide care is poorly researched, let alone conceptualised. This paper explores how this important part of librarians’ daily work is practiced through the lens of i

Background: A growing literature suggests associations between occupational pesticide exposure and respiratory health. In this study, we aimed to examine the association of exposure to insecticides, fungicides, and herbicides, individually and as a mixture, with respiratory health outcomes and rhinitis in avocado farmworkers from Michoacán, Mexico. Material and methods: We conducted a cross-sectio

The ribosome is an essential drug target as many classes of clinically important antibiotics bind and inhibit its functional centers. The catalytic peptidyl transferase center (PTC) is targeted by the broadest array of inhibitors belonging to several chemical classes. One of the most abundant and clinically prevalent mechanisms of resistance to PTC-acting drugs is C8-methylation of the universally

All people are different. All teachers are different. All students are different. They have different life situations, different study situations, and different preferences, conditions, and abilities. How can we take this diversity into account when we plan our teaching and exams? What situations should we prepare for? How can we help students focus on their learning and not on unnecessary obstacl

BACKGROUND: Neoadjuvant chemotherapy (NACT) for early breast cancer can make breast-conserving surgery more feasible and might be more likely to eradicate micrometastatic disease than might the same chemotherapy given after surgery. We investigated the long-term benefits and risks of NACT and the influence of tumour characteristics on outcome with a collaborative meta-analysis of individual patien

Currently, the clinical factors affecting immune responses to influenza vaccines have not been systematically explored. The mechanism of low responsiveness to influenza vaccination (LRIV) is complicated and not thoroughly elucidated. Thus, we integrate our in-house genome-wide association studies (GWAS) analysis result of LRIV (N = 111, Ncase [Low Responders] = 34, Ncontrol [Responders] = 77) with

BACKGROUND: Balloon angioplasty with drug-coated balloons (DCBs) is frequently used during percutaneous coronary intervention for in-stent restenosis. Despite its frequent use, there is a lack of long-term data on the efficacy of DCB angioplasty. We conducted an investigation on the long-term efficacy outcome of in-stent restenosis, comparing DCBs, drug-eluting stents, and plain old balloon angiop

C4b-binding protein (C4BP) is a well-known regulator of the complement system that holds additional and important activities unrelated to complement inhibition. Recently, we have described a novel immunomodulatory activity in the minor C4BP(β-) isoform directly acting over inflammatory phagocytes. Here we show that incorporation of the β-chain to the C4BP α-chain oligomer interferes with this immu

Background: Increased solar and geomagnetic activity (SGA) may alter sympathetic nervous system activity, reduce antioxidant activity, and modulate physiochemical processes that contribute to atmospheric aerosols, all which may reduce pulmonary function. Objectives: Investigate associations between forced expiratory volume at 1 s (FEV1) and forced vital capacity (FVC) with SGA, and assess whether