Investigating evolutionary constraints on the detection of threatening stimuli in preschool children.

Numerous objects and animals could be threatening, and thus, children learn to avoid them early. Spiders and syringes are among the most common targets of fears and phobias of the modern word. However, they are of different origins: while the former is evolutionary relevant, the latter is not.

Some remarks on the indoor radon distribution in a country.

From the point of view of indoor radon activity concentrations, a country is characterized correctly by two parameters (GM and GSD) of a lognormal distribution if and only if hypothesis tests do not reject the distribution of the local radon activity concentrations as a lognormal one. The authors introduce a way to obtain an empirical distribution using a stratum system covering almost the whole country and in each stratum the lognormal model is acceptable according to hypothesis tests. The sample for the analysis is provided by the measurement of radon level in 15,619 Hungarian homes.

Evaluation of indoor radon measurements in Hungary.

The RAD Laboratory measured annual means of radon activity concentrations in 15 277 first-floor rooms of dwellings and in 325 rooms on upper floors in Hungary (1994-2004). The original purpose of the survey was to find radon-prone area in Hungary. The maximum measured value was 5800 Bq m(-3), while the minimum was 10 Bq m(-3).

The load of genetic and partially genetic diseases in man. II. Some selected common multifactorial diseases: estimates of population prevalence and of detriment in terms of years of lost and impaired life.

This paper presents epidemiological data on the prevalence of 26 common (i.e., having a lifetime prevalence of more than 1 per 10(4) individuals in the population) multifactorial diseases in Hungary and estimates of detriment associated with them.