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22672. The good, the bad and the ugly: Emys trinacris, Placobdella costata and Haemogregarina stepanowi in Sicily (Testudines, Annelida and Apicomplexa)

Creator:
Arizza, Vincenzo, Sacco, Francesco, Russo, Debora, Scardino, Rita, Arculeo, Marco, Vamberger, Melita, and Marrone, Federico
Format:
print, počítač, and online zdroj
Type:
model:article and TEXT
Subject:
parazitologie, parasitology, Itálie, Italy, haemoprotozoans, blood parasitism, parasite spill-over, conservation, 2, and 59
Language:
English
Description:
Endemic Sicilian pond turtles Emys trinacris Fritz, Fattizzo, Guicking, Tripepi, Pennisi, Lenk, Joger et Wink were examined for the presence of haemogregarine parasites. The presence of haemogregarines, occurring mainly in the microgametocyte stage (13.2 ± 0.12 μm in length and 6.4 ± 0.52 μm in width), was observed in approximately 9% of the sampled E. trinacris. Based on the observed morphology and on the sequencing of nuclear 18S rDNA, we identified the parasite as Haemogregarina stepanowi Danilewsky, 1885. Morphometric study of uninfected and infected red blood cells has shown that H. stepanowi induces different changes in erythrocyte shape depending on the infective stage. The differential count of leukocytes in specimens infected with H. stepanowi showed no significant difference compared with healthy specimens. However, considering the health problems which might be induced by H. stepanowi in the closely related European pond turtle Emys orbicularis (Linneaus), monitoring of the health status of the infected Sicilian populations of E. trinacris is desirable. The restricted distribution of populations of Emys infected with haemogregarines in Sicily is quite puzzling and the possible human-mediated introduction of the parasite in Sicily is briefly discussed., Vincenzo Arizza, Francesco Sacco, Debora Russo, Rita Scardino, Marco Arculeo, Melita Vamberger, Federico Marrone., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

22673. The groups of automorphisms of the Witt Wn and Virasoro Lie algebras

Creator:
Bavula, Vladimir V.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
matematika, algebra, derivace funkce, mathematics, derivatives (mathematics), group of automorphisms, monomorphism, Lie algebra, Witt algebra, Virasoro algebra, automorphism, locally nilpotent derivation, 13, and 51
Language:
English
Description:
Let Ln = K[x1±1,..., xn±1] be a Laurent polynomial algebra over a field K of characteristic zero, Wn:= DerK(Ln) the Lie algebra of K-derivations of the algebra Ln, the so-called Witt Lie algebra, and let Vir be the Virasoro Lie algebra which is a 1-dimensional central extension of the Witt Lie algebra. The Lie algebras Wn and Vir are infinite dimen- sional Lie algebras. We prove that the following isomorphisms of the groups of Lie algebra automorphisms hold: AutLie(Vir) \simeq AutLie(W1) \simeq {±1} \simeq K*, and give a short proof that AutLie(Wn) \simeq AutK-alg(Ln) \simeq GLn(Z) \ltimes K*n., Vladimir V. Bavula., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

22674. The growth of Czech feminism: analyzing resistance activities through a gendered lens, 1968 to 1993

Creator:
Martin, Megan R
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
ženy, feminismus, gender, hnutí odporu, women, feminism, resistance movements, 18, and 316.4/.7
Language:
Czech
Description:
This paper explores how women’s roles and participation in resistance to Czechoslovak communism from 1968 to the Velvet Revolution serve as a base for Czech feminist thought. By examining three generations of participants through a gendered, Beauvoirian lens, the emergence of feminism can be easily charted through changing perceived gender roles and increased attention to gender issues. After the events of the Prague Spring, women from different groups of the Czechoslovak underground risked their own safety to exercise free speech and expression. Women’s struggles for greater liberties were framed by traditional gender barriers, supposed communist equality, and Western influence. To understand the experiences of female dissidents as a base for Czech feminist thought, one must examine the nature and progression of various underground communities and women’s roles within them. Since 1968, an increased emphasis on women’s freedoms and liberties has helped create a unique, local sense of femininity and feminism., Megan R. Martin., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

22675. The H- and T-Reflex Response Parameters of Long- and Short-Distance Athletes

Creator:
Ozmerdivenli, R., Bulut, S., Urat, T., and Ahmet Ayar
Format:
print, bez média, and svazek
Type:
article, studie, model:article, and TEXT
Subject:
Fyziologie člověka a srovnávací fyziologie, fyziologie člověka, human physiology, H-reflex, T-reflex, Athlete, Electromyography, Training, 14, and 612
Language:
English
Description:
It is well known that the training level of a muscle belongs to the parameters that affect the H-reflex response amplitude. The aim of this study was to investigate the effects of training type on H- and T-reflex response parameters. For this purpose, 20 long-distance athletes (group I, test group), 18 short-distance athletes (group II, test group) and 20 non-trained subjects (group III, control group) were involved in this study in which the H- and T-reflex amplitude and latency values were measured. The H-reflex amplitude and latency values found in groups I, II and III were 3.64±0.28 mV and 26.88±1.45 ms, 3.17±0.26 mV and 26.19±1.89 ms, and 6.07±0.34 mV and 26.77±1.32 ms, respectively. The T-reflex amplitude and latency values of the groups I, II and III were 3.30±0.18 mV and 32.01±1.02 ms, 3.11±0.20 mV and 31.47±1.16 ms, 4.24±0.21 mV and 31.47±1.16 ms, respectively. There was no statistically significant difference between the groups with respect to latencies of H- and T-reflexes (p>0.05). In both test groups, the amplitudes of the H-reflex and T-reflex were significantly smaller than the control group (p<0.05). The results of this study suggest that training of muscles affect the H- and T-reflex response parameters., R. Ozmerdivenli, S. Bulut, T. Urat, A. Ayar., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

22676. The Hlinsko - Kouty I site and the only stratified aurignacian-like assemblage with a bifacial triangular point in Moravia

Creator:
Demidenko, Yuri E, Petr Škrdla, and Jios-Garaizar, Joseba
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
archeologie, archaeology, Morava (Česko), Moravia (Czechia), carinated burin-cores, bifacial triangular point, Míškovice-type, Morava-type Aurignacian, 8, and 902
Language:
Czech
Description:
A salvage excavation carried out in Hlinsko quarry in 2006 yielded a collection of Aurignacian-like artifacts supplemented by a bifacial triangular point. Recently, a refitting attempt documented on-site reduction of a carinated burin-core and shaping/thinning of the bifacial point. Subsequently, a use-wear study supported the homogeneity of the assemblage. The assemblage relates to the Morava-type Aurignacian (B. Klíma) or Míškovice-type Upper Paleolithic industry (M. Oliva) previously known in Moravia for lithic assemblages originating only from surface find spots. At the same time, some similar excavated Upper Paleolithic assemblages combining Aurignacian-like and Szeletian-like features are also known in Eastern Europe., Yuri E. Demidenko, Petr Škrdla, Joseba Rios-Garaizar., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

22677. The Hussite Wars

Creator:
František Lützow
Publisher:
J.M. Dent & Sons and E.P. Dutton & Co
Format:
print, text, regular print, and xiv, 384 s. : 1 vlepená mapa ; 23 cm
Type:
model:monograph and TEXT
Subject:
Dějiny Česka a Slovenska, 15. století, 1419-1434, husitské války, Hussite wars, 15th century, dějiny, Česko, history, Czechia, 355.48:27-878.4, 94(437.3), (048.8), 8, and 94(437)
Language:
English
Description:
by the Count Lützow
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

22678. The hyperparasitic microsporidium Amphiacantha longa Caullery et Mesnil, 1914 (Microspora: Metchnikovellidae) - description of the cytology, redescription of the species, emended diagnosis of the genus Amphiacantha and establishment of the new family Amphiacanthidae

Creator:
Larsson, J.I. Ronny
Format:
print
Type:
model:internalpart and TEXT
Subject:
Microspora, Amphiacanthidae, sporogony, ultrastructure, cytology, and Amphiacantha longa
Language:
English
Description:
The ultrastructural cytology and reproduction of Amphiacantha longa Caullery et Mesnil, 1914 is described. Mcrogonial reproduction was not observed. The sporogony follows two lines: free disporoblastic. and enveloped, polysporoblastic, involving sporoblast mother cells. The enveloped sporogony is endogenous in spore sacs of sporont origin, daughter cells are formed by vacuolation. Probably all stages have coupled nuclei. Both free and enveloped spores are equipped with an extrusion apparatus composed of a flat polar sac, a straight polar filament of manubrium type, and a posterior globular appendix. Manubrium and appendix are enclosed in a membraneous coat. Circular elements of coat material occur in the proximity of the extrusion apparatus. The membraneous coat and the surface layer of the manubrium penetrate the polar sac. The extrusion apparatus is located at the wide pole of the spore, the nuclei at the narrower pole. Hosts are gregarines of the genus Lecudina Mingazzini, living in the gut of the polychaete Lumbrinereis fragilis (O. F. Muller). The cytology and reproduction are discussed and compared to other genera of metchnikovellideans, to the chytridiopsid genera, and to microsporidia expressing the typical cytology for the group. Metchnikovellideans and chytridiopsids exhibit cytological and reproductive similarities. The species is redescribed, the diagnosis of the genus Amphiacantha Caullery et Mesnil, 1914 is emended, and the new family Amphiacanthidae, comprising the genera Amphiacantha and Amphiamblys Caullery et Mesnil, 1914, is established.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

22679. The identification of faults using morphostructural and geophysical methods: a case study from Strašín Cave site

Creator:
Hartvich, Filip and Valenta, Jan
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, jeskyně, caves, Šumava (pohoří : oblast), Šumava Mountains Region, geophysical profiling, morphostructural analysis, faults, 7, and 551
Language:
English
Description:
This paper combines morphostructural analysis and geophysical methods in order to link the faults monitored inside Strašín Cave with faults and lineaments in the vicinity of the cave. The studied site is situated in SW Bohemia, at the foothills of the Bohemian Forest Mts. Main goal is to combine the morphostructural, morphometrical and geophysical methods in order to identify the fault system, monitored inside the cave. This will allow relevant interpretation of the observed movements in the frame of the local tectonic environment. The results show that the monitored faults are observable in the geophysical profiles and, using our knowledge of the structural setting, we have been able to link them with mapped tectonic structures in the vicinity of the cave. Thus, it has been demonstrated that even where outcrops are absent, the faults can be traced and that the monitored faults are significant enough to yield relevant data on tectonic movements. In addition, the combined resistivity and gravimetry profiles reveal a possible new, presently unknown, cave located 20 m below the surface about 200 m northnortheast of Strašín Cave., Filip Hartvich and Jan Valenta., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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