Modeling Interval Timing by Recurrent Neural Nets.

The purpose of this study was to take a new approach in showing how the central nervous system might encode time at the supra-second level using recurrent neural nets (RNNs). This approach utilizes units with a delayed feedback, whose feedback weight determines the temporal properties of specific neurons in the network architecture. When these feedback neurons are coupled, they form a multilayered dynamical system that can be used to model temporal responses to steps of input in multidimensional systems.

[The temporary loss of work capacity in workers in the hot shops of the metallurgical industry due to diseases of the circulatory organs].

It was established that morbidity with temporary loss of working capacity due to diseases of the circulatory organs showed a tendency towards increase among workers of modern hot shops of the blast furnace, steel-smelting furnace, converter and the steel rolling industry. Most frequent in these category of workers was incidence of ischemic heart disease, hypertensive disease and hemorrhoid. The incidence varied among different professions enumerated above and depended also on the age, working conditions.

[Digestive organ diseases in workers in contact with trinitrotoluene].

The authors analyze the morbidity with temporary loss of working capacity due to diseases of the digestive organs in workers realizing technological explosions in the ore-mining and processing industry. The etiological role is shown of trinitrotoluene in the formation of really high levels of morbidity of the digestive organs.

[Bronchoscopic diagnosis of pulmonary tuberculosis in miners].

Two hundred and thirty nine records of bronchoscopic examination of miners from iron ore mines, including 114 patients with active pulmonary tuberculosis were studied and the frequency of specific and nonspecific endobronchitis and functional, anatomical and hemocirculatory disorders was determined. Qualitative estimation of the endoscopic symptoms and computer-assisted analysis enabled one to validate the direct and probabilistic bronchoscopically evident signs of active tuberculosis. The data on the mature, frequency and diagnostic value of some endoscopic signs should be considered in differentiation of tuberculosis in miners (without pneumoconiosis).