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Content available remote Links between oral health and personality at a law enforcement school
One of the territories of dental psychosomatics is the link between personality characterisctics and dental status. The aim of the present study was to survey the relationship between temperament and character factors and dental status in police students. It can be hypothesized, that some temperament factors can increase the risk for dental health problems. After dental screening 792 police students completed the Temperament and Character Inventory (TCI) devised by Cloninger. 57.5% of students rated their own teeth as being in good or very good condition, and only 2.8% as bad condition. In persons rating their dental status as “good”, the average DMFT was 9.23±5.01 (mean±S.D.). In students assessing their own oral health as bad, TCI results showed that a higher percentage of students displayed extravagance, impulsiveness, disorderliness than the overall population. Among the students with good self-assessment but bad teeth, there was a higher percentage of students displaying passivity, low assertiveness, and introversion. The temperament and character factors may have negative consequences for students in an institution which exposes them to high stress level. It may be useful to screen these students using subjective health questionnaires in order to permit more effective efforts to positive health behaviour.
Content available remote A version of Brauer’s theorem for integer central functions
In this article we prove an effective version of the classical Brauer’s Theorem for integer class functions on finite groups.
Content available remote Reflecting topological properties in continuous images
Open Mathematics
tom 10
nr 2
Given a topological property P, we study when it reflects in small continuous images, i.e., when for some infinite cardinal κ, a space X has P if and only if all its continuous images of weight less or equal to κ have P. We say that a cardinal invariant η reflects in continuous images of weight κ + if η(X) ≤ κ provided that η(Y) ≤ κ whenever Y is a continuous image of X of weight less or equal to κ +. We establish that, for any infinite cardinal κ, the spread, character, pseudocharacter and Souslin number reflect in continuous images of weight κ + for arbitrary Tychonoff spaces. We also show that the tightness reflects in continuous images of weight κ + for compact spaces. We present examples showing that separability, countable extent and normality do not reflect in continuous images of weight ω 1. Besides, under MA + ¬ CH, the Fréchet-Urysohn property does not reflect in continuous images of weight ω 1 even for compact spaces. An application of our techniques gives a solution of an open problem published by Ramírez-Páramo. If Jensen’s κ +-Axiom $$\left( {\diamondsuit _{\kappa ^ + } } \right)$$ holds for an infinite cardinal κ, then for an arbitrary space X with no G κ-points there exists a continuous surjective map f: X → Y such that w(Y) = κ + and Y has no G tk-points. We apply this result to solve a problem of Kalenda.
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