The Influence of Heat Treatment on Corrosion Resistance and Microhardness of Hot-Dip Zinc Coating Deposited on Steel Bolts.

The analyzed topic refers to the corrosion resistance and changes in microhardness of the heat-treated (HT) hot-dip zinc coating deposited on bolts. The research aimed to evaluate the influence of the HT on the increase of the coating hardness and changes in anticorrosion properties. Hot-dip zinc coating was deposited in industrial conditions (acc.

The Impact of Heat Treatment on the Behavior of a Hot-Dip Zinc Coating Applied to Steel During Dry Friction.

The analyzed topic refers to the wear resistance and friction coefficient changes resulting from heat treatment (HT) of a hot-dip zinc coating deposited on steel. The aim of research was to evaluate the coating behavior during dry friction after HT as a result of microstructure changes and increase the coating hardness. The HT parameters should be determined by taking into consideration, on the one hand, coating wear resistance and, on the other hand, its anticorrosion properties.

REM sleep behaviour disorder in narcolepsy.

Background And Purpose: Narcolepsy is characterized by excessive daytime sleepiness, cataplexy, sleep paralysis and hypnagogic hallucinations. The aim of the study was to evaluate the incidence of REM sleep behaviour disorder (RBD) in consecutive patients with narcolepsy referred to our sleep disorders centre.

Material And Methods: Among patients examined because of hypersomnia, a diagnosis of narcolepsy was established in 30 patients (mean age 34.

[Sleep quality and daytime sleepiness in schizophrenia spectrum disorders during antipsychotic treatment].

Aim: Patients with schizophrenia frequently report disturbed sleep and excessive daytime sleepiness. In this study the sleep quality and daytime sleepiness of patients hospitalized due to psychotic disorders was assessed shortly before the discharge from the hospital.

Method: 62 patients treated with antipsychotics (20 F/ 42 M, mean age 25.

[The effectiveness of treatment with trazodone in patients with primary insomnia without and with prior history of hypnotics use].

Unlabelled: The treatment of primary insomnia frequently lasts longer than four weeks, the maximal time allowed for daily hypnotics use. Antidepressants are important alternative for long-term insomnia treatment. The aim of the study was compared the efficacy of trazodone in the treatment of patients with primary insomnia with and without prior history of hypnotics use.