In spite of the complicated plurality of the present ways of thinking about speech and the prerequisites of speech, it is possible to say that the various ways of thinking could be placed somewhere between the end points the „absolute“ formalism and the „consistent“ functionalism with the distinct transitional zone in between. One can assume that the development tends from the formalism to the functionalism and this means the way of rising of the explanatory power of the theories. In order to make the process successful it is necessary to look for such formal means that are able to rationally express the knowledge of consistent functionalistic theories. If it were not for this fact, the way from the „absolute“ formalism to the „consistent“ functionalism would be the unwished way from the rationalism to non-rationalistic speculations, far away from the bounds of science. If we insisted on the petrification of the so far existed formalisms, in the name of the aimed grade of formalisation, it would mean to persist on the knowledge of speech on interest of the brilliant formal language exercises.
A new species of Prochristianella Dollfus, 1946 is described from the spiral intestine of the wedgenose skate, Dipturus whitleyi (Iredale) (Rajiformes: Rajidae), off the north-western coast of Tasmania (Australia). Prochristianella mattisi sp. n. is characterised by an acraspedote scolex, two oval bothria, elongate, bent bulbs, a retractor muscle inserting at the base of each bulb and the presence of gland-cells within the bulbs and prebulbar organs. The tentacular armature is typical heteroacanthous, heteromorphous, with a characteristic basal oncotaxy and a metabasal armature with hooks first increasing and then decreasing in size along each principle row. It can be differentiated from other species of Prochristianella by a combination of morphological characters, such as the metabasal tentacular armature with eight hooks per principle row, a unique basal armature without enlarged hooks on the basal swelling and genital pores slightly posterior to the mid-line of the segment. The description of P. mattisi sp. n. increases the number of known species within Prochristianella to 20, eight of which occur in Australian waters. A key for the identification to species within Prochristianella is provided.
Antagonists of GABA B receptors are expected to have proconvulsant acti on also in developing brain. Two antagonists (CGP55845 and CGP46381) were tested in a model of cortical epileptic afterdischarges (ADs) in 12-, 18- and 25-day-old rat pups with implanted electrodes. CGP55845 was dissolved in dimethylsulfoxide and the results demonstrated marked proconvulsant action of this solvent which masked possible action of the antagonist. Water soluble antagonist CGP46381 led to marked potentiation of ADs in 12-day-old animals, its action decreased with age, it was negligible in 25-day-old rats. Our results demonstrated important inhibitory role of GABA B receptors at very early stages of maturation., P. Mareš., and Obsahuje bibliografii a bibliografické odkazy
In this paper we analyse a definition of a product of Banach spaces that is naturally associated by duality with a space of operators that can be considered as a generalization of the notion of space of multiplication operators. This dual relation allows to understand several constructions coming from different fields of functional analysis that can be seen as instances of the abstract one when a particular product is considered. Some relevant examples and applications are shown, regarding pointwise products of Banach function spaces, spaces of integrable functions with respect to vector measures, spaces of operators, multipliers on Banach spaces of analytic functions and spaces of Lipschitz functions., Enrique A. Sánchez Pérez., and Obsahuje seznam literatury