To derive a Baum-Katz type result, a Chover-type law of the iterated logarithm is established for weighted sums of negatively associated (NA) and identically distributed random variables with a distribution in the domain of a stable law in this paper.
This article is a response to Daniela Tinková’s study Enlightenment as ‘vernacularization of knowledge’. In the first part we comment on the positive aspects of Tinková’s conception of the history of the Enlightenment, but also on the lack of clarity concerning the nature of knowledge as both a component of cultural transfer and the outcome of that process. The second part changes perspective, focussing on ‘the transfer of Enlightenment’ and the ‘radiation’ of Enlightenment from the Czech Lands to surrounding regions of the Habsburg monarchy, especially Galicia. For this reason the Czech Lands assumed a regional hegemony in many areas of administration and economic and intellectual life. We also attempt to explain the motivations for accepting ‘Enlightenment knowledge’ while relativizing the power asymmetries in these processes.
Polylabris lingaoensis sp. n. is described from the gills of the bald glassy, Ambassis gymnocephalus (Chandidae), from the Gulf of Tonkin (South China Sea), near Lingao, Hainan Province, China. The new species is characterized by a midventral vaginal pore, comparatively few (5-7) testes, and 2 parallel rows each comprised of 30-43 microcotylid clamps in the haptor. Polylabris lingaoensis is the only member of the genus known to parasitize a chandid host. Polylabris cf. mamaevi is described from the gills of the mottled spinefoot, Siganus fuscescens (Siganidae), from the South China Sea, which represents new host and locality records for the helminth. The gill parasites from S. fuscescens are tentatively assigned to P. mamaevi pending new collections and restudy of microcotylid species from siganid fishes.
The paper presents and analyses the Talbot effect - self-imaging of a periodical structure in given distances behind a template, if the template is illuminated by a plane wave. This phenomenon has many applicationsin optical metrology and in industry. The detailed mathematical analysis with an amplitude grating illuminated by a monochromatic plane and spherical wave is performed. Afterwards, the applications in optical metrology, lithography, and measuring displacements are shown and described. and V práci je představen a analyzován Talbotův jev - samozobrazování periodické struktury v určitých vzdálenostech za svou předlohou, je-li tato předloha osvětlena rovinnou vlnou. Tento jev má řadu praktických aplikací v optické metrologii a průmyslu. Je provedena podrobná matematická analýza na příkladu amplitudové mřížky osvětlené monochromatickou rovinnou a sférickou vlnou, a dále jsou představeny a popsány vybrané aplikace využívající tento jev v oblasti optické metrologie, litografie a měření posunů.