Solar activity has important effect on terrestrial environment in which human population lives. Long-term and short-term periodicities in solar activity had influence on secular climate changes, little ice ages and climatic optima. The article summarizes briefly the results and methods of historical climatology. The text resumes the methods of research of the solar activity variation over the last 1500 years, through physical methods as well as through preserved written sources. The basic mechanisms of the effects of solar activity on terrestrial environment and human population are explained as well as the predictions of the upcoming solar activity. This may indicate that we are currently at the beginning of another long-term solar minimum., Kateřina Podolská., and Obsahuje bibliografii
In this study, the demographic profile of the Roman population buried in Gerulata, southwest Slovakia, is reconstructed. Our research is based on those human skeletal remains, which were anthropologically examined and thus allowed us to partially estimate the mortality pattern of this population, chronologically dated between the 1st and 4th centuries CE. By means of current demographic methods the basic mortality parameters from the estimated life table are compared with different population models, with pacific regard to the identification of potential biases, two of which - the general infant under-representation and the unbalanced sex ration - are further discussed., Lucia Hlavenková, Jaroslava Schmidtová, Tomáš Zeman., and Obsahuje odkazy pod čarou