Mechanistic modeling of the elution behavior and convective entrapment of vesicular stomatitis virus on an ion exchange chromatography monolith.

Developing a downstream purification process for replication-competent enveloped virus particles presents a significant challenge. This is largely due to the highly complex particle structures, as well as complexities of emerging purification modalities for such virus particles. In this study, an unexpected fluid-dynamic effect was observed during the elution of enveloped virus particles from an ion exchange chromatography monolith.

Detecting the footprint of selection on the genome of Girgentana goat, a popular ancient breed.

Girgentana goats are an ancient breed with distinctive morphological, adaptive, and production traits, making this population an interesting model for studying the genetic architecture underlying these traits. These special features result from natural and human-mediated selection. In this study, we aimed to detect potential signatures of selection in the Girgentana genome by combining the following statistical methods: the integrated haplotype score (iHS), the standardised log-ratio of the integrated site-specific extended haplotype homozygosity test between pairs of populations (Rsb), the runs of homozygosity (ROH) islands and the population differentiation index (F).

Environmental concentration of the quaternary ammonium disinfectant benzalkonium chloride strongly induces resistance gene profiles in fish.

Disinfectants are non-antibiotic biocides that have been used extensively in daily life, particularly since the onset of the COVID-19 pandemic. However, their effect on drug resistance has not received sufficient attention. Here, marine medaka were subjected to an environmental concentration (10 μg/L) of benzalkonium chloride (BAC), sulfamethazine (SMZ), and their combination, aiming to elucidate their contributions to antibiotic resistance.

Characterisation of tyre wear particle transport from road runoff to sea in coastal environments.

Data on the fate of tyre wear particles (TWPs) within aquatic environments is limited. This study quantified TWPs entering estuaries in stormwater drainage and atmospheric fallout, and once they have reached the marine environment, within surface waters and sediments. TWPs were found at concentrations of 0.

Regularized origin ensemble with a beam prior for range verification in particle therapy with Compton-camera data.

In particle therapy (PT), several methods are being investigated to help reduce range margins and identify deviations from the original treatment plan, such as prompt-gamma (PG) imaging with Compton cameras (CC). To reconstruct the images, the Origin Ensemble (OE) algorithm is commonly used. In the context of PT, artifacts and strong noise often affect CC images.

Ecosystem evolution and drivers across the Tibetan Plateau and surrounding regions.

The Tibetan Plateau (TP) and surrounding regions, vital to global energy and water cycles, are profoundly influenced by climate change and anthropogenic activities. Despite widespread attention to vegetation greening across the region since the 1980s, its underlying mechanisms remain poorly understood. This study employs the eigen microstates method to quantify vegetation greening dynamics using long-term remote sensing and reanalysis data.

Modeling Charge Collection in Silicon Pixel Detectors for Proton Therapy Applications.

Monolithic active pixel sensors are used for charged particle tracking in many applications, from medical physics to astrophysics. The Bergen pCT collaboration designed a sampling calorimeter for proton computed tomography, based entirely on the ALICE PIxel DEtector (ALPIDE). The same telescope can be used for in-situ range verification in particle therapy.

On the Facile Synthesis of Triazaarsoles Using Acyclic Precursors.

Easily accessible dichloroarsanes are suitable precursors for the synthesis of rarely explored triazaarsoles, the arsenic analogues of tetrazoles and triazaphospholes. Calculations on the DFT level gave insight into the electronic structure of such planar compounds, indicating a high degree of aromaticity. Our preliminary investigations pave the way for accessing and investigating a whole variety of new heterocycles, that contain a low-coordinated arsenic atom.

Exploring the Anion Site Disorder Kinetics in Lithium Argyrodites.

Lithium argyrodites LiPS ( = Cl, Br, I) are a promising class of solid-state electrolytes with the potential to achieve high conductivities (>10 mS·cm) necessary for use in solid-state batteries. Previous research has shown that structural factors, in particular, site disorder between the sulfide and halide anions, can impact the ionic conductivity of lithium argyrodites. One current hypothesis for this correlation between anion site disorder and ionic transport is a connection to the lithium-ion substructure.

A methodological framework for deriving the German food-based dietary guidelines 2024: Food groups, nutrient goals, and objective functions.

Background: For a growing number of food-based dietary guidelines (FBDGs), diet optimization is the tool of choice to account for the complex demands of healthy and sustainable diets. However, decisions about such optimization models' parameters are rarely reported nor systematically studied.

Objectives: The objectives were to develop a framework for (i) the formulation of decision variables based on a hierarchical food classification system; (ii) the mathematical form of the objective function; and (iii) approaches to incorporate nutrient goals.

Organic Room-Temperature Near-IR Phosphorescence Harvested by Intramolecular Through-Space Sensitization in Composite Molecules.

We studied a family of coordination compounds with short intramolecular spatial separation between an organic chromophore and a metal centre. The specific geometry was realized by means of anthracene-functionalized tertiary aryl phosphanes. Their silver and gold complexes (1, 2) operate as conventional fluorophores, with photophysical behavior defined by anthracene-localized allowed transitions.

Clinical Practice Guideline: The Diagnosis and Treatment of Acute Spinal Cord Injury.

Background: In Germany, the incidence of traumatic spinal cord injury is approximately 16 per million inhabitants per year. This article aims to present evidence-based diagnostic and therapeutic measures for the first 14 days after injury to minimize neural damage, prevent complications, and preserve functioning as much as possible.

Methods: After the formulation of key questions, systematic literature searches were carried out on multiple topics.

Take-Home Naloxone in Opioid Dependency: An Intervention to Reduce Opioid-Related Deaths.

Background: There were 2227 drug-related deaths in Germany in 2023, corresponding to a rise of 12% over the previous year and a doubling over the course of a decade. Approximately 60% of these deaths were related to opioid consumption. In this narrative review, we discuss whether take-home naloxone (THN) might lower the mortality of persons with opioid dependency.

Improved Free-Energy Estimates for the Permeation of Bulky Antibiotic Molecules through Porin Channels Using Temperature-Accelerated Sliced Sampling.

The estimation of accurate free energies for antibiotic permeation via the bacterial outer-membrane porins has proven to be challenging. Atomistic simulations of the process suffer from sampling issues that are typical of systems with complex and slow dynamics, even with the application of advanced sampling methods. Ultimately, the objective is to obtain accurate potential of mean force (PMF) for a large set of antibiotics and to predict permeation rates.

Atrial fibrillation burden in clinical practice, research, and technology development: a clinical consensus statement of the European Society of Cardiology Council on Stroke and the European Heart Rhythm Association.

Atrial fibrillation (AF) is one of the most common cardiac diseases and a complicating comorbidity for multiple associated diseases. Many clinical decisions regarding AF are currently based on the binary recognition of AF being present or absent with the categorical appraisal of AF as continued or intermittent. Assessment of AF in clinical trials is largely limited to the time to (first) detection of an AF episode.

Modulating inhibitory synaptic plasticity to restore basal ganglia dynamics in Parkinson's disease.

Parkinson's disease is characterized, in part, by hypoactivity of direct pathway inhibitory projections from striatum to the globus pallidus internus (GPi) and indirect pathway inhibitory projections from globus pallidus externus (GPe) to the subthalamic nucleus (STN). In people with Parkinson's disease (n=32), we explored the potential use of intracranial stimulation for eliciting long-term potentiation (LTP) of these underactive pathways to produce improvement of symptoms that persists beyond stimulation cessation. During GPi deep brain stimulation (DBS) surgery, we found strong evidence (p<.

EBAX-1/ZSWIM8 destabilizes miRNAs, resulting in transgenerational inheritance of a predatory trait.

Environmental influences on traits and associated transgenerational epigenetic inheritance have widespread implications but remain controversial and underlying mechanisms poorly understood. We introduce long-term environmental induction experiments on alternative diets in , a nematode exhibiting mouth-form plasticity including predation, by propagating 110 isogenic lines for 101 generations with associated food-reversal experiments. We found dietary induction and subsequent transgenerational inheritance of the predatory morph and identified a role of ubiquitin ligase EBAX-1/ZSWIM8 in this process.

Liquid-bodied antibiofilm robot with switchable viscoelastic response for biofilm eradication on complex surface topographies.

Recalcitrant biofilm infections pose a great challenge to human health. Micro- and nanorobots have been used to eliminate biofilm infections in hard-to-reach regions inside the body. However, applying antibiofilm robots under physiological conditions is limited by the conflicting demands of accessibility and driving force.

Ndrg3 is a critical regulator of peripheral T cell maturation and homeostasis.

To provide protection, anticipatory T cell-dependent immunity is reliant on the generation and maintenance of a naïve T cell repertoire, which is sufficiently diverse to ensure recognition of newly encountered antigens. Therefore, under steady-state conditions, a given individual needs to maintain a large pool of naïve T cells, ready to respond to potential threats. Here, we demonstrate that N-myc downstream-regulated gene 3 (Ndrg3) is essential for naïve T cell stability.

On-demand heralded MIR single-photon source using a cascaded quantum system.

We propose a mechanism for generating single photons in the mid-infrared (MIR) using a solid-state or molecular quantum emitter. The scheme uses cavity quantum electrodynamics (QED) effects to selectively enhance a Frank-Condon transition, deterministically preparing a single Fock state of a polar phonon mode. By coupling the phonon mode to an antenna, the resulting excitation is then radiated to the far field as a single photon with a frequency matching the phonon mode.

Virulent African swine fever virus infection of porcine monocytes causes SLA I subversion due to loss of proper ER structure/function.

African swine fever virus (ASFV) is a large DNA virus of the Asfarviridae family that causes a fatal hemorrhagic disease in domestic swine and wild boar. Infections with moderately virulent strains predominantly result in a milder clinical course and lower lethality. As target cells of ASFV, monocytes play a crucial role in triggering T-cell-mediated immune defense and ASF pathogenesis.

Precise Identification of Inhibitors for Coagulation Reactions from Complex Extracts through Monitoring of Biological Aggregates Combined with a Targeted Fishing Technique.

Biological aggregates play a crucial role in the pathogenesis of thrombotic diseases, especially thrombin-induced biological aggregates. Therefore, the efficient discovery of thrombin inhibitors is of great significance for the prevention and treatment of thrombotic diseases. In this study, the aggregation precursor protein fluorescent probe was successfully prepared for monitoring the production of biological aggregates induced by thrombin.

Coping with chronic periprosthetic joint infection after failed revision of total knee and hip arthroplasty: a qualitative study on patient's experiences in treatment and healing.

Periprosthetic joint infections (PJI), along with the extensive medical and surgical interventions required for treatment, impose a substantial psychological burden on patients. Given the need for patients to adapt to long-term physical limitations and ongoing medical challenges, this qualitative study aims to explore the nature of psychological coping amongst patients with chronic cases of PJI. A total of 18 patients (8 men and 10 women, aged 55 to 92) who underwent a total knee or hip arthroplasty revision due to chronic PJI were recruited at a single academic institution between August 2022 and July 2023.

Is beauty beyond the eye of the butterfly?

The bright colors observed across the animal world are often used during mate choice. An exciting new study in PLOS Biology suggests genetic and neural mechanisms contributing to the evolution of visual mating decisions in Heliconius butterflies.

Distinctive CD8 T cell activation by antigen-presenting plasmacytoid dendritic cells compared to conventional dendritic cells.

Plasmacytoid dendritic cells (pDCs) play a pivotal role in immune responses, particularly against viral infections. pDCs exhibit diverse functions, including interferon production, cytokine secretion, and antigen presentation. Here, we investigate the antigen cross-presentation capacity of pDCs and their role in CD8 T cell activation.