This study discusses the extent to which Goodman’s constructivist conception of worldmaking may serve the needs of scientific practice. I argue that worldmaking should help us retain a common methodological order and a basic framework for scientific pluralism. In this way it should provide us not only with better scientific knowledge but also with a greater understanding of the world in general that would be inclusive of both scientific and nonscientific disciplines. The main purpose of this paper is to show that, if revisited, Goodman’s idea of versions, including even mutually exclusive scientific theories, can aid the gradual progress of pluralistic science. Taking the prevailing criticism of Goodman’s conception into account, I argue that worldmaking can serve as a methodological apparatus for scientific disciplines because it presents a position of moderated constructivism which, thanks to the variable criterion of rightness, offers a way to maintain both relativism and skepticism. and Studie se zaměřuje na aplikovatelnost Goodmanovy konstruktivistické koncepce světatvorby pro potřeby vědecké praxe. Světatvorba, jakožto metodologický aparát, by měla sloužit k posílení vědeckého pluralismu a měla by vědám (i nevědám) poskytnout metodologický řád a strukturu. Tímto způsobem bychom měli dosáhnout nejen přesnějšího vědeckého popisu, ale i hlubšího všeobecného porozumění světu, které zahrnuje jak vědecké, tak i nevědecké disciplíny. Hlavním cílem studie je poukázat na to, že Goodmanova teorie verzí světa, která zahrnuje i vzájemně neslučitelné vědecké teorie, může podpořit pokrok pluralisticky pojaté vědy, je-li interpretovaná v umírněné formě. Po zhodnocení stávající kritiky a vypořádání se s námitkami, může světatvorba sloužit jako metodologický aparát pro vědecké disciplíny, protože díky pozici umírněného konstruktivismu poskytuje prostor vědeckému pluralismu, přičemž zabraňuje relativismu i skepticismu.
Submitted paper deals with preparation of the X-DIA aeroelastic demonstrator component wind tunnel tests. The paper is focused on design, analysis and manufacturing of new composite foreplanes, FE analyses of the X-DIA Component Model (static
aeroelasticity, flutter, dynamic responses) and optimization study of the demonstrator wind tunnel support device. Analyses were performed by means of the MSC.NASTRAN program system. and Obsahuje seznam literatury
Senescence-induced changes in the xanthophyll cycle activity and chlorophyll (Chl) fluorescence parameters were compared in detached barley (Hordeum vulgare L.) leaf segments kept for 6 d in darkness or under continuous " white light" (90 μmol m-2 s-1). Before detachment of the leaf segments, the plants were grown at periodic regime [12 h light (90 μmol m-2 s-1)/12 h dark]. The de-epoxidation state of the xanthophyll cycle pigments (DEPS) in the leaf samples was determined immediately (the actual DEPS), after 1 h of dark-adaptation (the residual DEPS), and during 14 min of a high-irradiance (HI) exposure (500 μmol m-2 s-1) (HI-induced DEPS). In the light-senescing segments, senescence was delayed pronouncedly compared to dark-senescing ones as the Chl content, the photosystem 2 photochemistry, and electron transport processes were highly maintained. Further, the actual DEPS increased, probably due to the increased mean photon dose. The HI-induced increase in the DEPS was stimulated in the light-senescing segments, whereas it was slowed down in the dark-senescing ones. However, after the 14 min HI-exposure of the dark-senescing segments the HI-induced DEPS was not markedly lower than in the mature leaves, which indicated the maintenance of the xanthophyll cycle operation. and M. Špundová, K. Strzałka, J. Nauš.
In South Bohemia, Czech Republic, 178 shrews, including 98 common shrews, Sorex araneus L., 70 pygmy shrews, Sorex minutus L., and 10 lesser white-toothed shrews, Crocidura suaveolens (Pallas), were examined for Soricimyxum fegati Prunescu, Prunescu, Pucek et Lom, 2007 infections, using squash preparations of unfixed tissues, histological sections and molecular methods. The infection was found in 51 (52%) S. araneus, 14 (20%) S. minutus and 1 (10%) C. suaveolens. The records of the latter two species extend host range of S. fegati. Lesions associated with S. fegati infections in the liver, the organ of specific localisation of the parasite, were found to be induced by proliferative stages migrating toward lumina of bile ducts. In other organs of these three host species, xenoma-like formations (XLFs) were found that severely injured blood vessels. XLFs contained presporogonic stages of S. fegati, whose species identity was evidenced using molecular methods.