Effect of Rb co-doping on the optical properties in VIS and NIR emitting CsPbCl:Yb perovskite powder.

Inorganic halide perovskites have been the subject of intensive research for their unique properties. Most current research focuses on halide ion exchange to modify the luminescence band gap and optical features. They are obtained mainly in colloids or thin layers, resulting in small grains with a narrow distribution.

Enhancing Powder Bed Fusion-Laser Beam Process Monitoring: Transfer and Classic Learning Techniques for Convolutional Neural Networks.

In this work, we address the task of monitoring Powder Bed Fusion-Laser Beam processes for metal powders (PBF-LB/M). Two main contributions with practical merit are presented. First, we consider the comparison between a large deep neural network (VGG-19) and a small model consisting of, among others, four convolutional layers.

Analysis of NUDIX enzymes across fungi reveals previously unrecognized diversity.

Background: The NUDIX superfamily encompasses highly diverse enzymes involved in a plethora of biological functions such as mRNA metabolism, DNA repair, and lipid peroxidation. These hydrolases are found in all domains of life and show surprising versatility in terms of the substrates that they process. The knowledge about the diversity of fungal NUDIX proteins is fragmentary, being largely limited to a small number of characterized enzymes from yeasts.

Anticancer Activity of Phospholipid-Dexibuprofen Conjugates Loaded in Nanostructured Lipid Carriers.

Purpose: In our work, we focused on the development of nanostructured lipid carriers (NLCs) loaded with dexibuprofen (DXI) and their application for cancer therapy by proposing the binding of phospholipids with this non-steroidal anti-inflammatory drug (NSAID) to obtain new delivery systems.

Methods: We successfully synthesized seven conjugates with good yields, four of which are new, and have not been previously published in the literature. The structures of the obtained conjugates were confirmed and comparative in vitro studies of their antiproliferative activity were conducted, along with molecular modeling to assess their therapeutic potential.

In Vitro Cytotoxicity Evaluation of Nanosized Hydroxyapatite and Fluorapatite on Cell Lines and Their Relevance to the Alveolar Augmentation Process.

Materials with an apatite structure were investigated in vitro in dental bone augmentation procedures. This scientific study aimed to compare nanosized hydroxyapatite (nHAp) and fluorapatite (nFAp) materials in the form of tablets in in vitro studies, including cytotoxicity assessment and fluoride release. The nHAp and nFAp nanosized materials were obtained using the microwave hydrothermal method.

Usefulness of subtraction thermography in the evaluation of blood vessels and lymphatic vessels in the dental pulp.

: Caries or iatrogenic thermal trauma of the teeth have a significant impact on the dental pulp structure connected with stimulation of angiogenesis and lymphangiogenesis. Therefore, the aim of the study was to identify the difference in the rate of heat dissipation by vessels present in the dental pulp. : Freshly extracted healthy ( = 10) and carious ( = 14) molars and premolars were cut on a diamond saw and subjected to active thermographic examination and then subjected to lymphoscintigraphy and X-ray examination.

Multifunctional Indomethacin Conjugates for the Development of Nanosystems Targeting Cancer Treatment.

Purpose: It is well known that the nonsteroidal anti-inflammatory drug (NSAID) indomethacin (IND) exhibits significant anticancer potential reported not only by in vitro and in vivo studies, but also in clinical trials. Despite promising results, IND is not widely used as an adjunctive agent in cancer therapy due to the occurrence of several gastrointestinal side effects, primarily after oral administration. Therefore, this study aimed to develop a nanosystem with reduced toxicity and risk of side effects for the delivery of IND for cancer treatment.

Addition of the Tilburg Frailty Indicator to the classic Global Registry of Acute Coronary Events risk score improves its prognostic value in elderly patients with acute coronary syndrome.

Introduction: Since proper risk stratification in a growing population of patients with acute coronary syndrome (ACS) is challenging, a potential advantage of adding the elements of geriatric assessment to the commonly used Global Registry of Acute Coronary Events (GRACE) 2.0 scale in predicting the risk of 6‑month death requires investigation.

Patients And Methods: The study group included 196 patients aged at least 65 years (mean [SD], 74.

Analysis of the Correctness of Mapping the Passage of a Semi-Trailer through a Road Obstacle on a Road Simulator.

Road simulators enable accelerated durability tests under similar-to-real road conditions. However, the road simulator itself generates the signals with the appropriate strength and amplitude that is adequate to the response registered by the sensors during the real run. Therefore, there is a need for verification of the validity of the representation of vehicle runs on a road simulator in terms of the shape of the generated profile and possible sources of uncertainty.

Advanced Heat Treatment of Pearlitic Rail Steel.

The aim of this research is a systematic investigation of heat treatments of 60E1 profile rails made of steel R350HT, which would ensure the properties required by the standard EN 16273. Additionally, it presents a concept of cooling rails on a semi-industrial station, which will make it possible to obtain the desired properties. The dilatometric tests have demonstrated that the optimal cooling rate is within the scope of 3 °C/s to 6 °C/s, when both the EN 16273 standard's hardness distribution and microstructure requirements are fulfilled.

Controlled Coherent Coupling in a Quantum Dot Molecule Revealed by Ultrafast Four-Wave Mixing Spectroscopy.

Semiconductor quantum dot molecules are considered promising candidates for quantum technological applications due to their wide tunability of optical properties and coverage of different energy scales associated with charge and spin physics. While previous works have studied the tunnel-coupling of the different excitonic charge complexes shared by the two quantum dots by conventional optical spectroscopy, we here report on the first demonstration of a coherently controlled interdot tunnel-coupling focusing on the quantum coherence of the optically active trion transitions. We employ ultrafast four-wave mixing spectroscopy to resonantly generate a quantum coherence in one trion complex, transfer it to and probe it in another trion configuration.

Stress and displacement patterns during orthodontic intervention in the maxilla of patients with cleft palate analyzed by finite element analysis: a systematic review.

Objective: Rationale for the review in the context of what is already known about the evaluation of stress and displacement patterns using finite element analysis in the maxilla of patients with cleft palate after orthodontic intervention.

Methods: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). The protocol for this systematic review was registered with PROSPERO (CRD42020177494).

Comminution of Polymetallic Nodules with a High-Pressure Water Jet.

This paper presents an original method for the comminution of polymetallic nodules in a hydro-jet mill of our own design, having the water jet pressure in the range of 70-200 MPa. The best comminution results are ensured by equipping the mill with a water jet having a diameter d = 0.7 mm and a comminution-homogenization tube having a diameter d = 2.

Electrochemical and Catalytic Properties of Carbon Dioxide-Activated Graphite Felt.

The commercial graphite felt GFA 10 was subjected to an activation process with the use of CO at 900 °C for 35 and 70 min. Pristine and heat-treated materials were characterized using various methods: low-temperature N adsorption, SEM, and EDS. Voltammetric measurements of GFA samples (before and after activation) as the working electrode were carried out.