Wyniki wyszukiwania - Biblioteka Nauki

1

THE STROKED BAND POTTERY CULTURE, THE MALICE GROUP, THE MORAVIAN PAINTED POTTERY CULTURE, THE OCICE GROUP, OR PERHAPS THE UPPER SILESIAN GROUP OF THE LENGYEL CULTURE? REMARKS ON TAXONOMY OF MATERIALS OF THE LENGYEL CULTURE IN THE UPPER BASIN OF THE O

100%

Janak V.

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tom 41

31-51

EN

The author reviews the actual state of research on the Langyel culture in Upper Silesia focusing mainly on taxonomic issues. He rejects terms 'the Jordanów group' and 'the Ocice group' as proposed in the literature, links of Upper Silesian Lengyel material with the Moravian Painted Pottery culture, and - most of all - connecting the earliest finds of that type with the Stroked Band Pottery culture and the Malice culture (group). Instead, he puts forward a hypothesis that the Lengyel type pottery of Phases I through IV constitute a certain unity termed by him as 'the Upper Silesian Lengyel group' (hornoslezská lengyelská skupina). The author underlines the fact that the analyzed phenomenon reflects the local development of the Lengyel culture in Upper Silesia (in the upper Basin of the Odra River).

2

Taxonomy: the role and relations of standardised languages. Towards the semantic web

100%

Horvath Z.

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tom 63

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nr 5

211-223

EN

The contradiction between the theoretically unlimited access to information and the efficiency of information searching has been pressing researchers and IT professionals to enhance the collaboration of computers and human workforce in the processes of information and knowledge acquisition. The importance attached to information retrieval methods has expanded beyond the library environment, resulting in the increasing respect of the professional background of traditional information retrieval languages and in the utilization of their theoretical principles even by business organisations. Having set the objective of the quick and comprehensive searching of portal and webpage contents, the professionals engaged in the development of the so-called semantic or intelligent web are working towards the creation of a web-based open and distributed system, that aims to apply standard descriptive languages to the online information sources, and will reach its full potential when the automatic distribution of data becomes possible. New programs and methods are being developed with the collaboration of software engineers, and the milestones of the progress are reported on by W3C working groups. The coordinated and computer-based development of various traditional and automatic cataloguing languages demonstrates remarkable achievements, however, automatic solutions are only provided by a few softwares. As far as computer-based classification tools are concerned, a group of experts in the theoretical issues of information sciences regard taxonomies and related tools as an easily adoptable classification system (a controlled vocabulary with a low level of hierarchy) that can be generated relatively quickly. Thus this paper primarily concentrates on taxonomy.

3

Taxonomic importance of the prefemoral process of the first pair of legs in males of the genus Pseudonannolene (Diplopoda, Spirostreptida)

80%

Fontanetti C. S.

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tom 50

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nr 3-4

199-202

EN

The first pair of legs in males of some groups of diplopods is modified, having a large coxa and oral projecting prefemoral process; in the family Spirostreptidae (Spirostreptida) this structure has relevance on the genus level. This paper discusses the shape, presence, and absence of the prefemoral process in the genus Pseudonannolene (Pseudonannolenidae, Spirostreptida) and suggests that this structure is an important taxonomic character in this genus and can be used for distinguishing some species.

4

Strains of the genus Acinetobacter and their significance in nosocomial infections

80%

Fleisher M. , Przondo-Mordarska A.

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tom 48

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nr 2

127-141

5

Isolation and cultivation of endosymbiotic alga from green hydra and phylogenetic analysis of 18S rDNA sequences

70%

Kovacevic G. , Franjevic D. , Jelencic B. , Kalafatic M.

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nr 1-2

135-143

EN

Symbiotic associations are of wide significance in evolution and biodiversity. The green hydra is a typical example of endosymbiosis. In its gastrodermal myoepithelial cells it harbors the individuals of a unicellular green algae. Endosymbiotic algae from green hydra have been successfully isolated and permanently maintained in a stable clean lab culture for the first time.We reconstructed the phylogeny of isolated endosymbiotic algae using the 18S rRNA gene to clarify its current status and to validate the traditional inclusion of these endosymbiotic algae within the Chlorella genus. Molecular analyses established that different genera and species of unicellular green algae could be present as symbionts in green hydra, depending on the natural habitat of a particular strain of green hydra.

6

Taxonomy of the genus Isophya (Orthoptera, Phaneropteridae, Barbitistinae): Comparison of karyological and morphological data

60%

Warchalowska-Sliwa E. , Chobanow D. P. , Grzywacz B. , Maryanska-Nadachowska A.

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nr 3-4

227-241

EN

The genus Isophya represents one of the largest orthopteran genera with about 45 species occurring in Europe. All over its range the genus includes groups of sibling species, the recognition of which is hampered by their morphological similarity. In part, some species were grouped according to their morphology: the Isophya straubei-group, the I. amplipennis-group and the I. major-group. Nevertheless,many species have not been studied using newmethods. This is particularly true for 15 taxa described from the Balkans, more or less resembling I. modesta, known mostly from old, unsatisfactorily informative descriptions. Chromosomal analysis of 25 species/subspecies of the genus Isophya showed the karyotypic evolution among species. The karyotype of 18 species/subspecies was investigated for the first time. The most remarkable changes in the sex chromosomes were the ancient acrocentric X chromosome inversions in 19 species and an X chromosome/autosome mutual tandem translocation, from which the sex determination system neo-XY originated in I. hemiptera. Karyotype differentiation has been less rapid in autosomes than in sex chromosomes, in this case interspecific autosomal differentiation has involved the distribution and quantity of C-heterochromatin as well as the number of NORs. Cytogenetic analysis revealed some changes reflecting the level of genomic organization,andtheresultssuggestsomeassociationofrelatedtaxafrombiogeographicregions.