The base of the Curionii Zone (Ladinian, Triassic) in Felsőörs (Hungary): improved correlation with the Global Stratotype Section

Abstract Recent excavation and sampling in the upper part of the Felsőörs section (Balaton Highland, Hungary) yielded important ammonoid findings, identified as belonging to the genera Nevadites, Chieseiceras, Eoprotrachyceras and Falsanolcites. Several specimens of Chieseiceras chiesense were found in a dm-thick clay layer with limestone nodules, regarded as the equivalent of the “Chiesense Groove“ of the Bagolino and other sections in the Giudicarie area (North Italy). The immediately overlying limestone bed yielded Eoprotrachyceras cf. curionii and Falsanolcites cf. rieberi. Together these reliably prove the base of the Curionii Zone, corresponding to the base of the Ladinian Stage, the GSSP of which was recently established at Bagolino. The new data further improved the excellent correlation between the ammonoid records of the Felsőörs section and the Global Stratotype Section at Bagolino. Felsőörs may be considered the most important reference section for the Anisian to Ladinian boundary interval

Egyenlőtlenségek a méhnyakszűrésben

Absztrakt A citológiai vizsgálatra alapozott méhnyakszűrés – elméletileg – alkalmas korán felismerni és kezelésre juttatni a méhnyak rákmegelőző állapotait és rákját, ezáltal javítani az életminőséget és mérsékelni a célbetegségből eredő halálozást. Ez a lehetőség gyakran kihasználatlan marad, mert egyenlőtlenségek mutatkoznak mind a szűrés „kínálati”, mind a „keresleti” oldalán. Az egyenlőtlenségek – az ország geopolitikai helyzetén túlmenően – adódhatnak az egészségügyi ellátórendszer különbözőségeiből, a szűrés mint szolgáltatás elérhetőségéből. Másfelől, a felkínált szűrés elfogadására befolyással van a célnépesség társadalmi-gazdasági helyzete, egészségtudatossága és tájékozottsága a szűrővizsgálat mibenlétéről, hasznáról és a lehetséges károkozásról. A szolgáltatóknak szorgalmazni kell a felajánlott szűrővizsgálat mind teljesebb elfogadását. Orv. Hetil., 2015, 156(24), 955–963

National cancer screening programme in Hungary

In order to improve the extremely poor health status of the Hungarian population, a National Public Health Programme has been established. In its framework, a nation-wide organized screening program has been developed for earlier detection of breast, cervical and colorectal cancers. The programme development, management structure, the information and financing system and quality assurance is described. Special attention is given to the obstacles in the way of effective screening activities

Partial dolomitization of foreslope and toe-of-slope facies of a Carnian carbonate platform, Transdanubian Range, Hungary

Partial and pervasive dolomitization of foreslope and toe-of-slope deposits of an early Carnian carbonate platform was investigated to understand the process and mechanism of dolomitization. Based on petrographic observations and C and O isotope data, the dolomitization took place in a near-surface to shallow burial setting; seawater of slightly elevated salinity was likely the dolomitizing fluid. The circulation system was maintained by reflux of evaporated sea water and geothermal heating of cold seawater derived from the surrounding deeper basin. The dolomitization was mostly controlled by the permeability of the platform-derived calcareous sediments

Genesis of Upper Triassic peritidal dolomites in the Transdanubian Range, Hungary

In the Late Triassic, a 2–3-km-thick platform carbonate succession formed along the passive margin of the Tethys Ocean. Certain parts of the succession were affected by pervasive dolomitization whereas other parts are only partially dolomitized or non-dolomitized. In the Transdanubian Range, Hungary, the Upper Triassic platform carbonates are extensively distributed and numerous data are available for the space and time relations of the dolomitized and non-dolomitized units. This geological setting provides a unique opportunity for the study of paleogeographical and diagenetic controls of dolomitization of the whole platform complex. This paper presents the characteristic features of the dolomite types of the dolomite-bearing formations and lithofacies types, with a view to interpret the dolomite-forming processes and to determine the main controlling factors of the dolomite genesis. Petrographic features and stable isotope characteristics of the studied successions suggest the predominance of penecontemporaneous and early diagenetic dolomite genesis. Study of the transitional interval between the pervasively dolomitized and the non-dolomitized sequences revealed the general presence of microcrystalline dolomite in the peritidal microbial deposits and the characteristics of partial dolomitization both in the peritidal and subtidal facies. In the peritidal facies, microbially induced Ca–Mg carbonate precipitation is inferred, which was probably complemented by penecontemporaneous mimetic dolomitization of precursor carbonates due to evaporative pumping or seepage influx. Dolomitization of the subtidal facies took place via reflux of slightly evaporated seawater. Dolomitization of the previously deposited carbonate mud commenced during subsequent subaerial exposure but the process of early diagenetic dolomitization may have continued during later exposure events. Recurring subaerial exposure is one of the factors that determine the areal extent of the early dolomitization of the platform carbonates. However, climatic conditions were also crucial. Although the sealevel-controlled, unconformity-bound cyclic facies pattern did not change significantly in the internal platform belt during the nearly 20-My-long time range, a drier climate favored dolomite formation while increasing humidity led to a gradual decreasing intensity of early dolomitization

Emergence of a new salt-tolerant alien grass along roadsides? Occurrence of Diplachne fusca subsp. fascicularis (Poaceae) in Hungary

This paper reports the occurrence of a North American salt-tolerant taxon, Diplachne fusca subsp. fascicularis (Lam.) P.M.Peterson et N.Snow in Hungary (Central-Europe). Two earlier Hungarian observations of D. fusca were known from 1915, near Győr (West Transdanubia), later the taxon was collected by Pénzes in 1958, in downtown Budatétény (central Hungary. Both observations seem to be occasional. Recently, the taxon has started spreading in Europe, mainly on rice paddy fields, with a serious invasion potential. In North America its appearance on ruderal habitats, as well as along roads and other linear infrastructures is a well known phenomenon. The Hungarian population was found near Cegléd (Central Hungary) on the roadside of the E40 primary main road in September 2018. In July 2019 more than one thousand (mostly vegetative) individuals were detected. The salt content of the habitat shows remarkable temporal and spatial variability. At one meter distance from the edge of the paved road soil salt content was higher in spring (after the winter de-icing regime), than in autumn. Salt concentration was highest in the vicinity of the road, and decreased with increasing distance from it. Germination tests revealed a significant negative effect of NaCl concentration on germination rates, but germination occurred even on extremely saline substrates with 1.5% NaCl concentration. Considering its biology and reproduction strategy, the further spread of Diplachne fusca is highly presumable

Web-szerver és mobil-kliens alkalmazások fejlesztése

Web-szerver és mobil-kliens alkalmazások fejlesztéseBs