[Methodical approaches to evaluation of air pollution by emissions of motor vehicles in population areas].

There are results of comparative analysis of air pollution by emissions of motor vehicles in the residential districts of Ryazan via different methodical approaches. Emissions were calculated regarding analysis of the traffic intensity on the elements of the city traffic network. Relative emissions, equivalent relative emissions and relative coefficient of emission hazard were calculated for each district.

[The CT-guided transthoracic biopsy of lung's and mediastinal tumors].

The results of 107 CT-guided transthoracic biopsies, conducted during 2005-2010 yy, were analyzed. The authors have shown the advantages of the core biopsy compared with the fine-needle aspiration biopsy (FNAB). Sensitivity of the first for the malignant tumors was 93%, while the FNAB sensitivity was only 75%.

[Changes of motor-evacuatory function of the gastrointestinal tract after surgery in children with acute appendicitis].

A new method of computed phonoenterography (CPEG) evaluates objectively motor-evacuatory function of the gastrointestinal tract. Comparative study of changes in motor-evacuatory function of the intestine was carried out according to CPEG data in 60 children aged from 6 to 15 years after traditional surgery with Volkovich-Dyakonov incision, and after endovideosurgical appendectomy for plegmonous and gangrenous appendicitis. Inflammation of the appendix leads to inhibition of intestinal motor function.

[Evaluation of the efficiency of use of the bed fund of a central district hospital].

The paper deals with a complex sociohygienic study of the basic indices of resource provision of the public health system in the Tver Region and with an analysis of the scope of inpatient care to the population of the Torzhok District, Tver Region. Based on an in-depth examination, the efficiency of the use of the bed fund of the central district hospital (CDH) was evaluated and economic losses from inadequate use of beds and economic effects of work of daily CDH-based hospitals were calculated.