Health care supervisors' opinion on prophylactic work in medical organizations

&nbsp;The aim: to investigate the condition of prophylactic work in medical organizations and to determine the directions for optimization of this process. Material and Methods. There has been carried out an anonymous questioning 92 of health care supervisors of the Saratov region, as well the analysis of data obtained from Saratov Regional Centre of medical prophylaxis. It was found that there were significant shortcomings in the individual items in the preventive work of medical organizations. Results. There has been determined the awareness of health care supervisors about normative-legal acts regulating prophylactic work; use of corresponding informational-methodical materials; management of registration documents and submission of reporting documents; performance of primary, secondary and tertiary prophylactic measures; realization of means and methods of hygienic upbringing and education of patients; activities of offices (departments) of medical prophylaxis. It has been established that the condition of prophylactic work in medical organizations of the Saratov region is at the satisfactory level but needs to be optimized. The directions of optimization are determined by the necessity to raise the levels of a number of characteristics analyzed. None of the considered measures of the first prophylaxis has been evaluated with the mark "good", (&gt; 4,0 points); some measures of the secondary prophylaxis (purposeful sanitary-hygienic education of patients and members of their families in skills of care associated with a certain disease or with a group of diseases, etc.) (2 points) have been evaluated with the mark "unsatisfactory"; the state of the tertiary prophylaxis has been evaluated on the whole with the mark "satisfactory", i.e. 3,4 points. Conclusion. The obtained materials may be useful in daily practice of medical organizations.</p

The optimal aircraft gas turbine engine control in low gas mode in the conditions of external additive noise

Currently, mathematical and computer modeling are the basis for the design of complex technical systems, which include aircraft structures, of course. Direct tasks for calculating the strength, flight, dynamic and other aircraft structures characteristics are widely described in the literature, methods for their solution are known. In aircraft engineering the inverse problem solution is primarily connected with strength characteristic calculation of aircraft structures and heat transfer problems. The inverse problems also include aircraft engines modes controlling tasks. Due to the fuel combustion disturbance, the engine is exposed to random disturbances in the form of Gaussian white noises in real live operation. At the bench test stage, not all system feedbacks can be accurately known. Thus, direct problems describing the engine operation are represented as stochastic differential equations systems with unknown parameters and additive white noises in the right-hand side. For such mathematical models, the inverse problem solution with respect to control parameters is made difficult by the need to estimate unknown parameters that can be realized in real conditions by measuring the phase characteristics of the system