„Round and round“ dance belongs to thegroup of rotative dances, i.e. dances that are characteristic by the rotation of the pair around the common axis. The accompanying melodies to the „round and round“ dance represent in the context of the Czech folk songs a special musical-dancing type. Many collectors disclosed the deep roots and importance of this type (among them, Božena Němcová, Ludvík Kuba, Otakar Zich, Čeněk Holas, Jindřich Jindřich). The point for departure for further analytical studies represented the most complete possible heuristics, in other words, the gathering of all accessible mentions and documents about the „round and round“ dance. The first study of the proposed three-part cycle brings about the descriptions of the dance in the collections from the 19th and the first halfof the 20th century, many authentic testimonies, glosses, comments and analyses that help to set up the concrete image of this ancient dance culture. They also offers the information about the latent appearance of this musical-dancing type in the collections of songs and dances of Southern and eastern Bohemia and engages in the concrete form of the dancing step and the position of the „round and round“ dance in the system of the Czech folk dances.
The erythrinid fish Hoplias malabaricus in Paraguay harbour two species of proteocephalid cestodes, Proteocephalus regoi sp. n. and Nomimoscolex matogrossensis Rego et Pavanelli, 1990. The former species differs from most South American members of Proteocephalus from fishes by: 1) presence of a small apical organ, 2) distribution of vitellaria, which do not reach to posterior margin of segment and 3) posterior position of vagina. Nomimoscolex matogrossensis is redescribed on the basis of type and recent material, with emphasis given to the morphology of genital organs and scolex, which possesses an apical organ. Both species possess a dense network of osmoregulatory canals in the postacetabular region of both scolex and neck. Proteocephalus regoi sp. n. is the first representative of the subfamily Proteocephalinae parasitizing erythrinid fish.
Plasmodia of a Henneguya species measuring 70-900 pm and exhibiting season-dependent stages of development were detected throughout a three-year study on gill myxosporosis of Lake Balaton pikeperch (Stizostedion lucioperca (L.)). Sixty-five out of 160 fish (41%) examined in the period of study were infected by the parasite. Infection was the most prevalent (48%) among pikeperch specimens exceeding 40 cm in length. The highest prevalence of infection (58%) was recorded in 1995-1996 while the lowest (30%) in 1996-1997. The youngest plasmodia appeared in April, and started to develop within the capillaries of the secondary lamellae of the gill filaments. The round or ellipsoidal plasmodia which continued their gradual growth in the subsequent months of the year achieved a size of 800-900 pm by the late autumn months, but remained in intralamellar location throughout the developmental cycle. Mature spores developed in the plasmodia by the end of winter. On the basis of their shape and size, the spores were identified as Henneguya creplini (Gurley, 1894). However, because of the uncertain taxonomy of species assigned to the genus Henneguya the taxonomic position of the parasite requires further study. The host reaction consisting of epithelial proliferation and granulation tissue formation starts around the infected secondary lamella only after the maturation of spores and the disruption of plasmodia.
This work deals with the worldview of autochtonous polish speaking ethnic group in Teschen Silesia inhabiting the area of both sides of current Czech-Polish border. It is importantfor our research that this ethnoculture maintains specific traditional traits, whether on the level of full meanings or of their symbolic sedimentation, which itself may serve as a source for reconstuction of these full meanings via structural-ermeneutical method. The analysis of narrative materials allows us to revealsome representative features of the researched worldview. By the notion of worldview we mean specific world description and world model (or pattern) as well. In our attempt to reconstruct a part of the worldview we aspire to show full potential of cognitive-linguistic analysis, taking note of both phenomenological and structural approaches. We understand the worldview notion as correlative to language and culture, and, on the other hand, as universal relative to man as bodily subject. We consider any worldview correlative to language and culture, alongside with being correlative to sensual human subject as well. This bilateral correlation is the source ofparadoxical nature of a worldview. Our research reveals that a worldview as a product of categorizing animal man makes reality simpler and stable on the one hand, but on the other hand can notget rid of it's own inconsistence and ambivalence. We attempt to prove that a worldview consists of a system for which general interpretation matrix can be found, but that this very system is equally confused, ambivalent, heterogeneous and includes multiple different layers. We also attempt to prove that cognitive structures specific for a member of the researched ethnoculture may occur outside this ethnoculture and that conlusions resulting from our analysis may have more general validity.
Several conditions of isolation were evaluated to determine which yielded the greatest number of thermotolerant and pathogenic freeliving amebae. Swab samples, easier to obtain and process, produced more pathogenic amebae than water samples. If water samples are required, 50-ml volumes gave the greatest percentage of pathogenic isolates. An incubating temperature of 42"C yielded the most thermotolerant amebae. A total of 11 pathogenic isolates were obtained from 762 environmental samples and were Acanthamoeba (55 %), Naegleria fowleri Carter, 1970 (27 %), and N. australiensis De Jonckheere, 1981(18%).