129 research outputs found

    A Coniopterygidae (Neuroptera) rovarcsalĂĄd taxonĂłmiai vizsgĂĄlata Ă©s monografikus feldolgozĂĄsa = Taxonomical investigation and monographic treatment of the insect family Coniopterygidae (Neuroptera)

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    13 Ășj fajt Ă­rtam le, vagy ismertem föl D-AmerikĂĄbĂłl, az EgyesĂŒlt Arab EmirĂĄtusokbĂłl Ă©s MagyarorszĂĄgrĂłl, Ă©s 21-et, mint az adott orszĂĄgok faunĂĄjĂĄra Ășjat. Az ismert elterjedĂ©si terĂŒletet 12 faj esetĂ©ben növeltem meg jelentƑsen. A Xeroconiopteryx alnem Ășj MagyarorszĂĄg faunĂĄjĂĄra nĂ©zve. LeĂ­rtam a Brucheiser penai lĂĄrvĂĄjĂĄt, Ă©s ezzel igazoltam, hogy a faj ĂĄltal kĂ©pviselt szupraspecifikus taxon helye alcsalĂĄdkĂ©nt a Neuroptera rendben Ă©s a Coniopterygidae csalĂĄdban van. LeĂ­rtam a Brucheiserinae alcsalĂĄd mĂĄsodik gĂ©nuszĂĄt - kĂ©t Ășj fajjal, Ă©s filogenetikailag Ă©rtĂ©keltem ilyen szempontbĂłl kiemelkedƑ jelentƑsĂ©gƱ bĂ©lyegeiket. TĂĄrsszerzƑkkel elkĂ©szĂ­tettem a Coniopterygidae csalĂĄd szupraspecifikus taxonjainak digitĂĄlis hatĂĄrozĂłjĂĄt. MegĂĄllapĂ­tottam, hogy a Stangesemidalis taxon a Parasemidalis gĂ©nuszba tartozik, amelyet hĂĄrom alnemre osztottam. SzinonimizĂĄltam a Drepanoconis alnemet. Öt faj esetĂ©ben helyesbĂ­tettem a gĂ©nuszba, illetve alnembe sorolĂĄst, 12 fajrĂłl megĂĄllapĂ­tottam, hogy szinonimizĂĄlĂĄsuk nem volt megalapozott, 6 esetben pedig azt, hogy a bizonyos fajok eltĂ©rƑ alakjĂĄnak tekintett, Ă©s ily mĂłdon leĂ­rt pĂ©ldĂĄnyok önĂĄllĂł fajokat kĂ©pviselnek. Új, illetve mĂłdosĂ­tott fajcsoport rendszert dolgoztam ki több alnem Ă©s gĂ©nusz esetĂ©ben.Több faj nƑstĂ©ny belsƑ genitĂĄliĂĄjĂĄt tanulmĂĄnyoztam; közĂŒlĂŒk hĂĄrom olyan gĂ©nuszt kĂ©pvisel, ahol korĂĄbban ilyen vizsgĂĄlat nem volt. ElkĂ©szĂ­tettem egy, a Coniopterygidae csalĂĄdra vonatkozĂł összefoglalĂł munka kĂ©ziratĂĄt. | 13 new species were described or recognized from S. America, from the United Arab Emirates and from Hungary and 21 as new to the fauna of the given countries. The known area was distinctly enlarged in the case of 12 species. The subgenus Xeroconiopteryx, is new also to Hungary. I have described the larva of Brucheiser penai, and confirmed that the supraspecific taxon representing by this species belongs to the order Neuroptera, family Coniopterygidae at subfamily rank. I have described the second genus of the subfamily Brucheiserinae, with 2 new species, and evaluated their characters of great phylogenetic importance. A digital key was made (with coauthors) for the supraspecific taxa of Coniopterygidae. It was pointed out that Stangesemidalis belongs to the genus Parasemidalis, and the latter was devided three subgenera. The subgenus Drepanoconis was synonymized. The generic or subgeneric combination of 5 species were modified. It was pointed out that synonymization of 12 species was not founded enough. It was demonstrated in other 6 case, that some forms which were described as modifications of known species are specimens of undescribed species. System of new or modified species groups was worked out in some genera and subgenera. Female internal genitalia of some species were studied. Three of this species represent such genera, where these organs hitherto were not investigated. The manuscript of a comprehensive work on the family Coniopterygidae was described

    Identity of Coniopteryx madagascariensis Meinander, 1974 (Neuroptera: Coniopterygidae), with description of three new species

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    Investigation of a large coniopterygid material from Madagascar showed that Coniopteryx (Coniopteryx) madagascariensis Meinander, 1974 is not conspecific with the forms that were described and illustrated later as variations of this insect. This statement was supported also by the examination of the holotype of C. madagascariensis. Coniopteryx (Coniopteryx) angusticauda sp. n., Coniopteryx (C.) evellana sp. n. and Coniopteryx (C.) malgasensis sp. n. are described as new species. These are referring the three different forms, which were erroneously handled as C. madagascariensis. All the three new species belong to C. lobifrons species group, which hithero was known only from the Oriental Region

    Modernizing National Numbering Plan on NGN Platform - Hungarian Case Study

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    The intensive technological development of the last years brought the overall acceptance of an IP based network and services vision based on the NGN. The realization of the NGN vision, the decision on the migration to NGN sets regulatory tasks, especially in the area of numbering and addressing. The utilization of the opportunities provided by the NGN platform requires the use of IP addresses and names in the core network, the role of the E.164 numbers is taken over by IP addresses. However in case of voice services the identification of end-user access points will remain by the use of E.164 numbers. Migration to NGN doesn't require directly the change of the subscribers' phone number; however the NGN enables among others the implementation of national number portability for fixed telephone service. The opportunities can be realized by using uniform domestic number length and dialling method, practically closed numbering. The introduction of a 9-digit uniform, closed domestic numbering provides a consistent solution for the deficiencies of the present Hungarian numbering plan, too. Recently it can be reached in single step so that the present 9-digit domestic numbers and the short codes remain unchanged, the 8-digit domestic numbers are completed to 9-digit by the insertion of an appropriate digit, as well as the present and new numbering schemes can be in operation simultaneously. --

    The open dihypergraph dichotomy for generalized Baire spaces and its applications

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    The open graph dichotomy for a subset XX of the Baire space ωω{}^\omega\omega states that any open graph on XX either admits a coloring in countably many colors or contains a perfect complete subgraph. This strong version of the open graph axiom for XX was introduced by Feng and Todor\v{c}evi\'c to investigate definable sets of reals. We first show that its recent generalization to infinite dimensional directed hypergraphs by Carroy, Miller and Soukup holds for all subsets of the Baire space in Solovay's model, extending a theorem of Feng in dimension 22. The main theorem lifts this result to generalized Baire spaces ÎșÎș{}^\kappa\kappa in two ways. (1) For any regular infinite cardinal Îș\kappa, the following holds after a L\'evy collapse of an inaccessible cardinal λ>Îș\lambda>\kappa to Îș+\kappa^+. Suppose that HH is a Îș\kappa-dimensional box-open directed hypergraph on a subset of ÎșÎș{}^\kappa\kappa such that HH is definable from a Îș\kappa-sequence of ordinals. Then either HH admits a coloring in Îș\kappa many colors or there exists a continuous homomorphism from a canonical large directed hypergraph to HH. (2) If λ\lambda is a Mahlo cardinal, then the previous result extends to all box-open directed hypergraphs on any subset of ÎșÎș{}^\kappa\kappa that is definable from a Îș\kappa-sequence of ordinals. We derive several applications to definable subsets of generalized Baire spaces, among them variants of the Hurewicz dichotomy that characterizes subsets of KσK_\sigma sets, an asymmetric version of the Baire property, an analogue of the Kechris-Louveau-Woodin dichotomy that characterizes when two disjoint sets can be separated by an FσF_\sigma set, the determinacy of V\"a\"an\"anen's perfect set game for all subsets of ÎșÎș{}^\kappa\kappa, and an analogue of the Jayne-Rogers theorem that characterizes functions which are σ\sigma-continuous with closed pieces.Comment: 115 pages, 11 figures. Added new results in Section 6.2.2 which strengthen and replace the results in Section 6.3 of the previous version. Improved results in Section 5.3. Various other minor corrections. Comments are welcom

    Some variants of Vaught’s conjecture from the perspective of algebraic logic

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    Vaught’s Conjecture states that if T is a complete first order theory in a countable language such that T has uncountably many pairwise non-isomorphic countably infinite models, then T has 2^â„”_0 many pairwise non-isomorphic countably infinite models. Continuing investigations initiated in SÂŽagi, we apply methods of algebraic logic to study some variants of Vaught’s conjecture. More concretely, let S be a σ-compact monoid of selfmaps of the the natural numbers. We prove, among other things, that if a complete first order theory T has at least â„”1 many countable models that cannot be elementarily embedded into each other by elements of S, then, in fact, T has continuum many such models. We also study-related questions in the context of equality free logics and obtain similar results. Our proofs are based on the representation theory of cylindric and quasi-polyadic algebras (for details see Henkin, Monk and Tarski (cylindric Algebras Part 1 and Part 2)) and topological properties of the Stone spaces of these algebras

    A dichotomy theorem for the generalized Baire space and elementary embeddability at uncountable cardinals

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    We consider the following dichotomy for ∑02 finitary relations R on analytic subsets of the generalized Baire space for k: either all R-independent sets are of size at most k, or there is a k-perfect R-independent set. This dichotomy is the uncountable version of a result found in [W. Kubiƛ, Proc. Amer. Math. Soc. 131 (2003), 619-623] and in [S. Shelah, Fund. Math. 159 (1999), 1-50]. We prove that the above statement holds if we assume ◊k and the set-theoretical hypothesis I-(k), which is the modification of the hypothesis I(k) suitable for limit cardinals. When K is inaccessible, or when R is a closed binary relation, the assumption ◊k is not needed. We obtain as a corollary the uncountable version of a result by G. SĂĄgi and the first author [Logic J. IGPL 20 (2012), 1064-1082] about the k-sized models of a ∑11(Lk+k)-sentence when considered up to isomorphism, or elementary embeddability, by elements of a Kk subset of kK. The elementary embeddings can be replaced by a more general notion that also includes embeddings, as well as the maps preserving LλΌ for ω≀Ό≀λ≀Îș and finite variable fragments of these logics

    Somogy megye fĂŒrgetetƱ (Psocoptera) faunĂĄja = Psocoptera fauna of Somogy county, Hungary

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    An annotated list of 29 psocopterous species is given from Somogy county. The collecting activity was the most intensive in the DrĂĄva region, however some species were collected also in other localities - first of all, on the shore of Lake Balaton. The species remarkable from the nature conservation point of view are discussed

    Taxonomic and nomenclatural questions of some coniopterygid species (Neuroptera)

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    In the present paper confirmation of validity of Aleuropteryx teleki Sziråki, 1990, Aleuropteryx wawrikae Rausch & Aspöck, 1978, Coniocompsa arabica Sziråki, 1992, Coniocompsa fimbriata Tjeder, 1957, Coniocompsa smithersi Meinander, 1972, Pampoconis uncinatus Adams, 1973, Nimboa manselli Meinander, 1998, Nimboa natalensis Tjeder, 1957, Semidalis intermedia Monserrat, 1983, Semidalis tricornis Johnson, 1980, Semidalis uncinata Tjeder, 1957, Semidalis hidalgoana Meinander, 1975, Semidalis problematica Monserrat, 1985 and Semidalis sonorana Meinander, 1975 is given. Besides, taxonomic status of Nimboa transvaalensis Meinander, 1975, identity of Nimboa capensis Tjeder, 1957 and availability of the name Coniopteryx (Xeroconiopteryx) martinmeinanderi Sziråki & van Harten in Sziråki, 2004 are discussed

    Somogy megye fĂŒlbemĂĄszĂłi (Dermaptera) = Earwigs of Somogy County, Hungary (Dermaptera)

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    Five earwig species found hitherto in Somogy county are listed. One of them may be regarded as remarkable insect from the nature conservation point of view
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