[Comparative analysis of the microbiological stability of modern polymers for the manufacture of removable prostheses].

Objective: The aim of the study is to study the degree of adhesion of reference strains of microorganisms to the surface of modern polymer materials for the manufacture of removable prostheses.

Materials And Methods: The primary and residual microbial adhesion of 4 types of polymers was studied: acrylic polymer (Villacryl H Plus), monomerless polymer (Vertex ThermoSens), photopolymers for additive manufacturing (Harz Labs Dental Denture Base, Harz Labs Dental Sand). , , , and were used as reference strains.

Supported Erythrocyte Membranes on Piezoelectric Sensors for Studying the Interactions with Nanoparticles.

Applications of nanoparticles (NPs) in nanodrugs, food additives, and cosmetics can result in the presence of nanomaterials in the human circulatory system and their attachment to red blood cells (RBCs), which may lead to cytotoxic effects. To investigate the interactions of NPs with RBC membranes (RBCm), supported erythrocyte membranes (SRBCm) were developed on piezoelectric sensors in a quartz crystal microbalance with dissipation (QCM-D) at 25 °C. A well-dispersed RBCm suspension at 1 mM NaCl and 0.

Profiling the Plasmodium falciparum Erythrocyte Membrane Protein 1-Specific Immununoglobulin G Response Among Ghanaian Children With Hemoglobin S and C.

Members of the Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) family are important targets for protective immunity. Abnormal display of PfEMP1 on the surfaces of infected erythrocytes (IEs) and reduced cytoadhesion have been demonstrated in hemoglobin (Hb) AS and HbAC, inherited blood disorders associated with protection against severe P. falciparum malaria.

[Optimization of postoperative protocol and diagnosis of inflammatory complications of post-extraction wounds at the stages of prosthetic rehabilitation].

The Aim Of The Study: Was to optimize the protocol for postoperative orthopedic management and diagnosis of wound healing zones in patients after multiple teeth extractions.

Material And Methods: At the Department of Orthopedic Dentistry and Orthodontics, Ryazan State Medical University, orthopedic treatment of 30 patients was carried out after the extraction of upper teeth. Patients were divided into 3 groups depending on the used immediate prostheses: (I) traditional, (II) having a shock-absorbing polypropylene mesh in their design, (III) having a drug reservoir made of elastic plastic and a ring made of monomer-free plastic in the region of the closing borders prosthesis.

Perceived safety in human-cobot interaction for fixed-path and real-time motion planning algorithms.

This study investigates how different motion planning algorithms, implemented on a collaborative robot (cobot), are perceived by 48 human subjects. The four implemented algorithms ensure human safety based on the concept of speed and separation monitoring, but differ based on the following characteristics: (a) the cobot motion happens either along a fixed path or with a trajectory that is continuously planned in real time via nonlinear model predictive control, to increase cobot productivity; (b) the cobot speed is further reduced-or not-in real time based on heart rate measurements, to increase perceived safety. We conclude that (1) using a fixed path-compared to real-time motion planning-may reduce productivity and, at least when heart rate measurements are not used to modify the cobot speed, increases perceived safety; (2) reducing cobot speed based on heart rate measurements reduces productivity but does not improve perceived safety; (3) perceived safety is positively affected by habituation during the experiment, and unaffected by previous experience.