Probing the Active Nitrogen Species in Nitrogen-Doped Carbon Nanozymes for Enhanced Oxidase-Like Activity.

Nitrogen doping emerges as a potent approach to enhance the oxidase-like activity of carbon nanozymes. However, the unclear knowledge of the active nitrogen species within nitrogen-doped carbon nanozymes hinders the advancement of high-performance carbon nanozymes. Herein, a group of nitrogen-doped carbon (N/C) nanozymes with controllable nitrogen dopants are successfully synthesized via a dicyandiamide-assisted pyrolysis method.

Dosage Optimization Using Physiologically Based Pharmacokinetic Modeling for Pediatric Patients with Renal Impairment: A Case Study of Meropenem.

The pharmacokinetics of renally eliminated antibiotics can be influenced by changes associated with renal function and development in a growing subject. Little is known about the effects of renal insufficiency on the pharmacokinetics of meropenem in pediatric subjects. The aim of this study was to develop a physiologically based pharmacokinetic (PBPK) model of meropenem for pediatric patients that can be used to optimize meropenem dosing in pediatric patients with renal impairment (RI).

Me2Se and Me2Te: their structures and synergistic effects of halogen/chalcogen bonding with C6F5Br and C6F5I.

This work combines halogen and chalcogen bonding. Short, polarity directed C-X⋅⋅⋅Ch (X = Br or I, Ch = Se or Te) contacts were prepared by in situ low-temperature cocrystallization of liquid mixtures of neutral pentafluorohalogenobenzenes C6F5X and dimethyl chalco-genides Me2Ch. Solid-state structures of Me2Se and Me2Te were determined 150 and 125 years after their first description.

Correction: Photocatalytic membranes based on Cu-NH-MIL-125(Ti) protected by poly(vinylidene fluoride) for high and stable hydrogen production.

Correction for 'Photocatalytic membranes based on Cu-NH-MIL-125(Ti) protected by poly(vinylidene fluoride) for high and stable hydrogen production' by Emilia Gontarek-Castro , 2025, https://doi.org/10.1039/d4mh01397b.

Automated proximal coronary artery calcium identification using artificial intelligence: advancing cardiovascular risk assessment.

Aims: Proximal coronary artery calcium (CAC) may improve prediction of major adverse cardiac events (MACE) beyond the CAC score, particularly in patients with low CAC burden. We investigated whether the proximal CAC can be detected on gated cardiac computer tomography (CT) and whether it provides prognostic significance with artificial intelligence (AI).

Methods And Results: A total of 2016 asymptomatic adults with baseline CAC CT scans from a single site were followed up for MACE for 14 years.

Nitrogen availability modulates carotene biosynthesis, chromoplast biogenesis, and cell wall composition in carrot callus.

Carrot callus grown on a medium with increased nitrogen have reduced carotenoid accumulation, changed gene expression, high amount of vesicular plastids and altered cell wall composition. Carotenoid biosynthesis is vital for plant development and quality, yet its regulation under varying nutrient conditions remains unclear. To explore the effects of nitrogen (N) availability, we used carrot (Daucus carota L.

Loss of Sirtuin 7 impairs cell motility and proliferation and enhances S-phase cell arrest after 5-fluorouracil treatment in head and neck cancer.

Sirtuin 7 (SIRT7), a member of the sirtuin family of NAD+-dependent deacetylases, plays a vital role in cancer, exhibiting context-dependent functions across various malignancies. Our study investigates the role of SIRT7 depletion in head and neck squamous cell carcinoma (HNSCC) progression. In vitro and 3D organotypic models demonstrated that SIRT7 knock-out attenuates cancer cell viability, proliferation, and motility as well as induces downregulation of migration- and epithelial-mesenchymal transition (EMT)-related gene expression.

An assessment of physiological and health responses in Catla catla fingerlings after polystyrene microplastic exposure.

Microplastics (MPs) form when plastic debris is released into the aquatic environment, where they decompose and have deleterious effects on aquatic life. This study aimed to examine the harmful impacts of polystyrene MPs (PS-MPs) on the growth, carcass composition, hematology, digestibility, histopathology, and mineral analysis of Catla catla (11.09 ± 0.

Rigorous numerical study of the density of periodic windows for the logistic map.

Numerical study of periodic windows for the logistic map is carried out. Accurate rigorous bounds for periodic windows' end points are computed using interval arithmetic based tools. An efficient method to find the periodic window with the smallest period lying between two other periodic windows is proposed.

From homophily to exclusion in small social systems.

The actors are placed at nodes of the complete weighted graph. They are endowed with densities of contact with the other actors and with positions in a social hierarchy. These characteristics evolve in time according to the homophily principle and the Matthew effect.

Quality by Design-Steered Chromatographic Separation and Identification of the Geometric Isomers of Capsiate by Reversed-Phase HPLC and LC-MS.

An efficient reverse-phase high-performance liquid chromatographic method, based on the design of the experiment approach, was developed for the simultaneous determination of capsiate isomers. Critical method parameters, i.e.

Analysis of entropy on the European markets of energy and energy commodities prices.

The paper analyzes the problem of entropy in the moments of transition from a normal economic situation (2015-2019) to the Pandemic period (2020-2021) and the period of Russia's attack on Ukraine (2022-2023). The research in the article is based on the analysis of electricity, oil, coal, and gas prices in 27 countries of the European Union and Norway. The daily data cover the period from January 1, 2015, to March 30, 2023, and were analyzed using two-dimensional sets of electricity and commodity prices.

Percutaneous self-expandable valve implantation in patients with stented pulmonary arteries: case examples.

CHDs affecting the right ventricular outflow tract often require repeated surgical or transcatheter interventions due to pulmonary insufficiency or stenosis. This study presents percutaneous implantation of large self-expanding valves in patients with complex right ventricular outflow tract anatomy after prior pulmonary branch stenting.

Irreversible electroporation as an intraoperative adjunctive treatment for locally advanced pancreatic cancer after neoadjuvant therapy: An initial clinical experience.

Backgrounds/aims: Irreversible electroporation (IRE) may have a potential application as either a "back-up therapy" or for margin accentuation during trial dissection of locally advanced pancreatic cancer (LAPC). The aim of this report was to describe our experience with IRE in terms of its potential applications mentioned above.

Methods: A clinical policy to use IRE in LAPC patients undergoing exploratory surgery after neoadjuvant therapy (NAT) was initiated in 2017.

Hemoglobin mass is accurately predicted in endurance athletes.

Hemoglobin mass (Hb) prediction enhance the accessibility and practicality of athletes' hemoglobin status monitoring, facilitating better performance. Therefore, we aimed to create prediction equations for Hb in well-trained endurance athletes (EA), based on easily obtained measures. The population of 220 well-trained EA (40% females, maximal oxygen uptake = 63.

Superior colliculus controls the activity of the substantia nigra pars compacta and ventral tegmental area in an asymmetrical manner.

Dopaminergic (DA) neurons of the substantia nigra pars compacta (SNc) and ventral tegmental area (VTA) play a crucial role in controlling animals' orienting and approach behaviors toward relevant environmental stimuli. The ventral midbrain receives sensory input from the superior colliculus (SC), a tectal region processing information from contralateral receptive fields of various modalities. Given the significant influence of dopamine release imbalance in the left and right striatum on animals' movement direction, our study aimed to investigate the lateralization of the connection between the lateral SC and the midbrain DA system in male rats.

Epigenetic age acceleration and methylation differences in IgG4-related cholangitis and primary sclerosing cholangitis.

Background: IgG4-related cholangitis (IgG4-SC) and primary sclerosing cholangitis (PSC) are chronic fibro-inflammatory hepatobiliary conditions, with genetic, environmental, and immunologic risk factors, in which epigenetic alterations may provide insights into pathophysiology and novel biomarkers. This study is the first to assess methylation signatures in IgG4-SC.

Results: Whole blood DNA methylation profiling and genotyping was performed in 264 individuals; 47 with IgG4-SC, 65 with PSC, 64 with ulcerative colitis (UC), and 88 healthy controls.

The development and evaluation of multiple regression equations based on four common nutritional analysis packages to predict the metabolisable energy density of diets fed to grower/finisher and adult pigs and their use for rat and mouse diets.

We have used multiple regression analyses to develop a series of metabolisable energy (ME) prediction equations from chemical analyses of pig diets that can be extended to murine diets. We compiled four datasets from an extensive range of published metabolism studies with grower/finisher and adult pigs. The analytes in the datasets were increasingly complex, comprising: 1.

What is the frequency of anterior syndesmosis injury in posterior malleolus fracture?

Background: Posterior malleolus fractures may be fixed to restore syndesmosis stability. However, these fractures are often accompanied by ruptures of other ligaments that stabilize the syndesmosis. This study investigates the frequency of anterior syndesmosis injury in posterior malleolus fractures and its effect on rotational stability.

Bibliometric analysis and trends related to dental tourism: Qualitative, social, economic and ethical implications.

This article delves into the multifaceted realm of dental tourism, scrutinizing patient incentives, economic ramifications, and ethical aspects. An in-depth 2023 analysis discerns research gaps, underscoring the necessity for a more exhaustive investigation to enrich the understanding of the global oral healthcare landscape. Utilizing bibliometric analysis method, the study examines the worldwide trajectory of scientific publications on dental tourism.