[Individual-based study of morbidity with temporary loss of work capacity in 1 plant over a 3-year period].

The study of morbidity rate with temporary disability according to subjects, based on the Soviet experience has an approximately thirty year history in our country. Even though, numerous scientific, methodical and organizational problems with a view to the application of the method-according-to-subjects are still unsolved. The object of our study is a plant of the Union of the Blind in Bulgaria, producing cork stoppers, electrical materials and haircloth.

[Role of hygienic science in controlling overall and occupational morbidity].

Hygiene as a science of man still faces some responsible tasks. Their solution requires the provision of broad, constructive complexity between the separate hygienic branches with constant increase of hygienic knowledge and expansion of the potentialities for scientific-practical implementation. However, at the present stage, the creative application of the hygienic-prophylactic approach is necessary, as well as of the clinical sciences and their introduction into the elaboration of measures for morbidity rate reduction (morbidity rate with temporary incapacity for work including).

[Effect of wide-band modulated electromagnetic fields on the workers of high-frequency telephone exchanges].

Physiological examinations of 63 subjects were performed as well as clinical, functional, paraclinical, etc. examinations of 82 subjects working under the effect of wide-band modulated electromagnetic fields in HFA of telephone exchanges. Some physiological changes were found as regards the level of blood pressure and auditory threshold.