Aims of the study were to compare the development of electrocardiographic responses of the ischemia-induced heterogeneities of activation and repolarization in the ventricular myocardium of normal and diabetic animals. Body surface ECGs and unipolar electrograms in 64 epicardial leads were recorded before and during 20 min after the ligation of the left anterior descending artery in diabetic (alloxan model, 4 weeks, n=8) and control (n=8) rabbits. Activation times (ATs), end of repolarization times (RTs) and repolarization durations (activation-recovery intervals, ARIs) were determined in ischemic and periischemic zones. In contrast to the controls, the diabetic rabbits demonstrated the significant prolongation of ATs and shortening of ARIs (P<0.05) during ischemia in the affected region resulting in the development and progressive increase of the ARI and RT gradients across the ischemic zone boundary. The alterations of global and local dispersions of the RTs in diabetics correlated with the Tpeak-Tend interval changes in the limb leads ECGs. In the ischemic conditions, the diabetic animals differed from the controls by the activation delay, significant repolarization duration shortening, and the increase of local repolarization dispersion; the latter could be assessed by the Tpeak-Tend interval measurements in the body surface ECGs., K. A. Sedova, M. A. Vaykshnorayte, A. O. Ovechkin, P. Kneppo, O. G. Bernikova, V. A. Vityazev, J. E. Azarov., and Obsahuje bibliografii
This work deals with the changes of rhetorical education and emotional orders in the second half of the 18th century. The aim of the research is to assess the relations among language education, funtions of medias, anthropological models and expression of emotions on the Threshold of enlightenment. The background of the research shapes the transformation of rhetorical tradition. The research of the broad field of pedagogical, rhetorical and moral discurs is focused on the collegium of Karl Heinrich Seibt., Václav Smyčka., and Obsahuje bibliografické odkazy
Creative Commons is a copyright movement that supports the building of a public domain by providing an alternative to the automatic all rights reserved copyright to some rights reserved. There are four major conditions of the Creative Commons: Attribution (BY), requiring attribution to the original author; Share Alike (SA), allowing derivative works under the same or a similar license (later or jurisdiction version); Non-Commercial (NC), requiring that the work not be used for commercial purposes; and No Derivative Works (ND), allowing only an original work without derivatives. and Libor Coufal.
Stať převážně empirického charakteru čerpá z archivních dat, ze zdrojů Centra pro výzkum veřejného mínění a z první fáze realizace projektu Grantové agentury ČR s názvem „Sociologický výzkum historického vědomí obyvatel České republiky”. Teoretická část textu vychází z konceptu kolektivní paměti, zejména z myšlenky selektivity a proměnlivosti obsahů uložených v paměti. Článek dále prezentuje kvantitativní data týkající se veřejného mínění o české historii a kvalitativní zjištění výzkumu o historickém vědomí získaná prostřednictvím metody focus groups., The article of a mostly empirical character is drawn from archive data, from the sources of the Centre for Public Opinion Research, and from the first phase of the undertaking of a project of the Grant Agency of the Czech Republic entit - led „The Sociological Research of the Historical Consciousness of Inhabitants of the Czech Republic“. The theoretical part of the text is based on the concept of collective memory, especially on the idea of the selectivity and changeability of contents saved in the memory. This article also presents quantitative data concerning the perspective held by public opinion on Czech history, and qualitative perspectives on historical consciousness attained through the use of focus groups., and Jiří Šubrt, Štěpánka Pfeiferová.
1., 2, Die Prüfung von Zuckerrübensorten in Mähren im Jahre 1922, Vergleichende Versuche über verschiedene Zuckerrübenstandweite in Mähren im Jahre 1922, Fr. Chmelař, Jar. Šimon und Fr. Mikolášek, and Sonder-Abdruck aus der "Zeitschrift für die Zuckerindustrie der čsl. Republik", Jahrg. XLVII. (IV) 1922/23, Heft 20-21, S. 270-287 u. Heft 48 S. 671-677, Heft 49 S. 683-694, Heft 50 S. 695-703 und Heft 51 S. 707-710
Vermiculite in its macroscopic form occurs in the Archaean supracrustal rocks exposed towards east of Sargur supracrustal complex in Karnataka state. The present study forms the first detailed work on the occurrence of vermiculite associated with the ultramafic rocks in the Agasthyapura, which lies in the long. 76° 50’ 658” and lat. 12° 15’ 976”. Petrography, X-ray diffraction, FTIR, DTA&TGA, SEM, fluid inclusion and electron probe analyses are presented in this contribution study. The probable origin of vermiculite from biotite through hydrobiotite is discussed., Kikkeri N. Prakash Narasimha, Honnaiah Ramalingaiah, Karel Melka, K. Krishnaveni, Pinnelli S. R. Prasad, Chikkamadaiah Krishnaiah, Katihalli S. Jayappa and Atni V. Ganesha., and Obsahuje bibliografické odkazy
In presented work natural expanded vermiculite was used as a starting material for synthesis of Fe-doped catalysts. Material was modified with increasing amount of Fe by ion-exchange and precipitation of iron oxide. Composite materials were characterized with respect to their structure (X-ray diffraction, Infrared spectra using Diffuse Reflectance), agglomeration state of Fe (Ultraviolet-Visible spectra using Diffuse Reflectance) and chemical composition. Activity in H2O2 decomposition as well as in phenol oxidation was studied in liquid phase at atmospheric pressure and temperature up to 70 °C. It was shown that doping with Fe increases catalytic activity. However, excess of iron resulted in formation of undesired side-products., Agnieszka Węgrzyn, Lucjan Chmielarz, Paweł Zjeżdżalka, Magdalena Jabłońska, Andrzej Kowalczyk, Agata Żelazny, Manuel Vázquez Sulleiro and Marek Michalik., and Obsahuje bibliografii