Implementation difficulties of tutor support technologies in higher education

The article is devoted to problems of implementation in practice of the University of technology tutor support, which would allow modern students to quickly and painlessly build an individual trajectory of personal and professional development, and University – to implement the requirements of standard of the last generation. The article is based on observations of the included experiment on the implementation of tutor support, which was carried out in the framework of advanced training courses for teachers of PSNIU. During the experiment, conditions that are extremely important for ensuring the effectiveness of the implementation of tutor support technology were identified. Among them: the certainty (firmness) of the tutor's position in the implementation of a specific goal of tutor support; the importance of organizing spatial interaction during the tutorial; the formation of an adequate understanding of the content of the tutor's activity among the participants of the tutorial; recognition of the self-value of the tutor's activity

Endobronchial Ultrasound in Mediastinal Lymphadenopathy

Currently, endobronchial ultrasound dramatically changed diagnostic approaches for mediastinal lesions, both benign and malignant. Still there is a lack of data regarding the optimal anaesthesia, route of intubation, needle type, and specific clinical situations concerning EBUS in real clinical practice. A short, but clinically oriented, description of EBUS-TBNA and EUS-b-FNA techniques for mediastinal lesions is provided

Investigation of 5’-norcarbocyclic nucleoside analogues as antiprotozoal and antibacterial agents

Carbocyclic nucleosides have long played a role in antiviral, antiparasitic, and antibacterial therapies. Recent results from our laboratories from two structurally related scaffolds have shown promising activity against both Mycobacterium tuberculosis and several parasitic strains. As a result, a small structure activity relationship study was designed to further probe their activity and potential. Their synthesis and the results of the subsequent biological activity are reported herein

Population model with immigration in continuous space

In a population model in continuous space, individuals evolve independently as branching random walks subject to immigration. If the underlying branching mechanism is subcritical, the model has a unique steady state for each value of the immigration intensity. Convergence to the equilibrium is exponentially fast. The resulting dynamics are Lyapunov stable in that their qualitative behavior does not change under suitable perturbations of the main parameters of the model

Branching random walk in a random time-independent environment

In a lattice population model, particles move randomly from one site to another as independent random walks, split into two offspring, or die. If duplication and mortality rates are equal and take the same value over all lattice sites, the resulting model is a critical branching random walk (characterized by a mean total number of offspring equal to 1). There exists an asymptotical statistical equilibrium, also called steady state. In contrast, when duplication and mortality rates take independent random values drawn from a common nondegenerate distribution (so that the difference between duplication and mortality rates has nonzero variance), then the steady state no longer exists. Simultaneously, at all lattice sites, if the difference between duplication and mortality rates takes strictly positive values with strictly positive probability, the total number of particles grows exponentially. The lattice Zd includes large connected sets where the duplication rate exceeds the mortality rate by a positive constant amount, and these connected sets provide the growth of the total population. This is the supercritical regime of branching processes. On the other hand, if the differ-ence between duplication and mortality rates is almost surely negative or null except when it is almost surely zero, then the total number of particles vanishes asymptotically. The steady state can be reached only if the difference between duplication and mortality rates is almost surely zer