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Early development of ide (Leuciscus idus): species determining parameters
Prokeš, Miroslav ; Peňáz, Milan ; Baruš, Vlastimil ; Hamáčková, J. ; Lepič, P. ; Kozák, P. ; Policar, T.
Main species determinant characters of dace (Leuciscus idus) in the early ontogeny were described and compared with analogical parameters referred in literature with chub (Leuciscus cephalus) and dace (Leuciscus leuciscus). Dealt about of morphological and morphometrical characteristics of eggs, free embryos, larvae and juvenile individuals (egg diameters, embryo lengths at hatching, larvae lengths at the start of exogenous nutrition, juvenile individuals lengths at the time of scale formation, number of body and caudal segments, number of fin rays, number of scales, mouth and fin position, caudal fin laps depth, fin coloration, pigmentation and next characters). The ide is morphologically very similar with the chub and dace. Species determination during early ontogeny is difficult.
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Andrzej Frycz Modrzewski - a precursor of Comenius?
Bečková, Marta
A comparison of the ideas of social reformer A.F. Modrzewski (around 1503-1572) with the work of Comenius. Modrzewski wrote "Comentariorum de Republica emendanda libri quinque". Comenius knew about him but we have no proof that he was acquainted with his work.
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Soares' Criticism of Arriaga's Conception of the Infinite
Mráz, Milan
The famous Spanish theologian and philosopher Rodrigo de Arriaga, who lived and worked for a long time in Prague in the 17th century, was one of the leading proponents of the conception of the possibility of topical infinity in the sphere of creation. He explained his concept of this topic or problem in some places of his work Cursus Philosophicus. His explanation underwent criticism by Arriaga's contemporary, the important Portugal theologian and philosopher Franciscus Soares, working in Coimbra and in Evora. The first part of this contribution contains a short overview of the development of views about the infinity in philosophy and theology since antiquity to the beginnings of the mod ern times. In the second part there are summarized the basic thoughts about the infinity in the mentioned Arriaga's work. The third and final part of the contribution deals with Soares' conception of the infinity and the criticism of Arriaga's conception of this problem.
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