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The objective of this study is related to the hypothetical assumption that there are biologically set predispositions as predictors of behavioural and personality disorders. The present work focused on identification of specific inherent predispositions as predictors of behavioural and personality deviations. The examined population of 901 subjects was provided with a battery of self-rating questionnaires: Temperament Evaluation of the Memphis, Pisa, Paris and San Diego Autoquestionnaire (TEMPS-A) for assessment and diagnosis of the temperament, Eysenck Personality Questionnaire (EPQ) for the assessment and diagnosis of relatively constant personality characteristics, International Personality Disorder Examination (IPDE-s) screening autoquestionnaire for the assessment and diagnosis of personality disorders and State Trait Anxiety Inventory À Form Y (STAI-Y) autoquestionnaire for the assessment and diagnosis of personality and situational anxiety. The results for the represented population showed statistically significant relationships, ranging from weak to strong positive correlation between the types of temperament in TEMPS-A and the personality disorders identified in screening IPDE, with the exception of the hyperthymic temperament scale in which very low non-significant negative relationships were observed. The analysis did not show significant correlations between personality disorders and the hyperthymic temperament type according to TEMPS-A. This temperament type showed weak statistically significant correlations with personality disorders from different clusters. Based on the high values of the linear correlation coefficients, some conclusions could be made on the causal correlation between the presence of a certain type of temperamental predispositions and the registered manifestations of possible personality disorders, namely, which personality disorder is most likely to occur in the prevalence of which temperament.

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The investigation have been made on the reasons for chemical changes of 35S during heating (570°C, 50 h) in vacuum (2 · 10−5 Torr) in silica tubes. The potential influence of: residual gases; adsorbed gases; gases, penetrating through tube walls; structural defects in silica and surface SiO2 layer is discussed. It is suggested that the gases and water vapour adsorbed on the surface and surface SiO2 layer (which has higher reactivity and adsorbing ability) are the main reasons for the observed chemical changes. The conditions of the experiments have been found so to minimize these changes.

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