428 research outputs found

    Middle Miocene (Late Badenian) microvertebrates from Hidas, SW Hungary

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    Up to the present, no terrestrial vertebrate fauna has been published from the pre-Pannonian Miocene of SW Hungary. In 2022 a microvertebrate assemblage was unearthed from a lime mud bed of the Middle Miocene Hidas Formation, in an abandoned coal mining field close to Hidas in the Mecsek Mts. The herpetofauna and the rodent material are described here. Fossil findings point to the Late Badenian MN 7+8 Zone, which, together with the earlier results based on the marine mollusc fauna, narrows the age of the unit to ~13.5–13.3 Ma. The amphibians and reptiles are aquatic, semiaquatic or periaquatic forms. Sedimentary features and the accompanying freshwater gastropod fauna are indicative of a shallow pond or a paludal depositional environment. Crocodylian finds reported earlier from the Hidas Formation indicate a subtropical climate, just before the end of the Miocene warm period in Central Europe. Among the rodents, glirids and flying squirrels as well as Democricetodon and Megacricetodon indicate the presence of humid arboreal vegetation around the site. The rodent taxa are well known from the Middle Miocene faunas of northern Hungary, western Romania and from the Upper Freshwater Molasse of southern Germany and Switzerland. The rodent material does not show characteristics of an insular fauna, e.g. gigantism or endemism. Consequently, although the coeval palaeogeography of the region has been described as an archipelago in the Central Paratethys, with the Mecsek Mts. being one of the islands, the area must have had ecological connections towards the northern and eastern parts of the Pannonian Basin, and the marine areas within the archipelago did not form a barrier against the distribution of microvertebrates. The corridor could have been located towards the NE from the Mecsek Mts., across the elevated basement blocks of central Hungary

    A hangverseny-élmény összetevői = Components of the concert experience

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    Ez a tanulmány a rendszeresen komolyzenei koncerteket látogatók hangversenyélményébe és annak pszichológiai hátterébe enged betekintést különös tekintettel a motivációra és az örömforrásra. A vizsgálati mintát 36 fő (12 férfi és 24 nő) alkotta, átlagos életkoruk 41,58 ±15,47 év. Célkitűzés: A kutatás kvalitatív módszer alkalmazásával tárja fel a hangverseny-látogatás mögött húzódó motívumokat. Ez a megközelítés sokkal változatosabb információval szolgál, mint a kvantitatív megközelítés. Eredmények: Az eredmények arra engednek következtetni, hogy a hangversenyre járók legfőbb motivációja az öröm és a boldogság átélése a zenehallgatás során, valamint a nyugalom megtapasztalása, mely velük marad a hangversenyt követő hetekben, hónapokban is. | This study provides an insight into the concert experience of regular attendees of classical music concerts and its psychological background, with a special focus on motivation and source of pleasure. The study sample consisted of 36 participants (12 men and 24 women) with an average age of 41.58 ± 15.47 years. Aim: The research uses a qualitative method to explore the motives behind concert-going. This approach provides much more information than the quantitative approach. Results: The results suggest that the main motivation for concert-goers is to experience joy and happiness while listening to music, and to experience a sense of calm that stays with them in the weeks and months following the concert

    An integrated magnetic susceptibility anisotropy (AMS) and structural geological study on Cenozoic clay rich sediments from the Transdanubian Range

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    Systematic structural and anisotropy of magnetic susceptibility (AMS) measurements were carried out on Cenozoic clay rich deposits from the Transdanubian Range, central part of the Alcapa Unit. The aim was to improve the knowledge on the Neogene tectonic evolution of the area and on the connection of the stress field and the magnetic fabric of the sediments. The measurements of AMS revealed dominant foliation with weak lineation for Middle Eocene-Lower Miocene sediments. The directions of AMS lineation are aligned either with the direction of NNE-SSW extension of a strike slip phase (30–19 Ma) or with the direction of NE-SW extension of the main rifting phase of the Pannonian Basin (19–14 Ma). The studied Late Miocene sediments have foliated AMS fabric, maximum and intermediate AMS directions are intermixed, and the AMS fabrics do not show any sign of tectonic deformation. In contrast, joints and faults were observed in the same rocks. Detailed structural analysis shows two extensional phases between ca. 10-4 Ma, with E-W to WNW-ESE and with NW-SE extension, respectively and the youngest neotectonic strike-slip phase. The contrast between the presence of markers of brittle deformation and the absence of tectonically induced AMS lineation is striking, since the same types of sediments in the South Pannonian basin show just the opposite. The explanation may be that northward moving and CCW rotating Adria caused strong compression in the southern Pannonian basin, resulting in ductile deformation of the clay-rich sediments and systematic reorganization of AMS texture while in our study area sediments of similar character and age were at a larger distance from the strongly deforming basin part

    A nyálmirigy hypofunctio aetiopathológiai jelentősége az orális és szisztémás megbetegedésekben különös tekintettel a Sjögren szindrómára = Etiopathological role of salivary gland hypofunction in oral and systemic diseases with special aspect to Sjögren`s syndrome

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    Hazai adatokat nyertünk a száj-és szemszáradás, és az azokkal kapcsolatos szubjektív panaszok gyakoriságáról. Összesen 600 személy adatait rögzítettük, ezek 34%-a panaszolt szubjektív szájszárazságot, és 7,5%-ban nyilatkoztak egyéb siccas tünetekről. A kérdezettek 21%-a szenvedett szubjektív xerophtalmiaban. A nyugalmi kevert nyál szekréciós rátája szignifikánsan magasabb volt férfiakban, mint nőkben, minden korcsoportban. A vizsgáltak 3.8 %-a szenvedett hyposalivatioban, ezek DMFT értéke és szájhygiéniája szignifikánsan rosszabb volt, mint a normosalivatios csoportban. A mély parodontalis tasakok száma személyenként nem mutatott szignifikáns eltérést az előbbi csoportokban. A nyugalmi, teljes nyálszekréció csökkenése volt mérhető a Sjögren szindrómás betegek vonatkozásában, míg a palatinalis szekréció nem különbözött a két csoportban. Megállapíthatjuk, hogy a vizsgált neuropeptidek szerepet játszhatnak a Sjögren szindrómában leírt szenzoros neuropathia kialakulásában Az IIM betegek esetében a jellemző szájnyálkahártya elváltozás a teleangiectasia volt. Kisnyálmirigyek vizsgálatakor PM/DM betegeknél legjellemzőbben az ultrastructuralis vizsgálatok a basal membran megvastagodását, és lamellaris szerkezetét mutatták. A szója táplálással létrehozott parotis hypertrophia modell vizsgálata az apoptosis irányában információkat nyújthat a humán parotisok hypertrophiájának megismeréséhez. | The aim of our study was to gain representative Hungarian data on prevalence of oral and ocular dryness. Altogether 600 persons were assessed, 34 % of them complained about subjective xerostomia, and 7.5% on other sicca symptomps. 21 % of them complained on subjective xerophtalmia. The resting whole salivary secretion rate was significantly higher in men than in women at every age groups. Regarding the dental status, DMFT value, and oral hygienic indices were significantly higher in the hyposalivation group. The frequency of the deep periodontal pockets didn't differ between the two groups. Although the resting, whole salivary secretion was lower in the Sjögren's group, the palatal secretion didn't differ between the two groups. Some examined neuropeptides can contribute to the pathogenesis of Sjögren's sy. in minor salivary glands in sensory neuropathy. In case of IIM patients the EM showed in minor salivary glands the thickening of capillary basal membrane, and lamellar structure of those. In soya feeding hypertrophy model we can examine the human parotid hypertrophy in the future

    Gyakorlati posztoperatív fájdalomcsillapítás a fogászatban

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    A fájdalom csillapítása az orvoslás minden területén kiemelt fontosságú. A fogorvosi beavatkozásokat követő fáj- dalom hatékony és biztonságos kezelése kulcsfontosságú, nemcsak a páciens életminősége, hanem a bizalom és elégedettség fenntartása, továbbá a funkció helyreállításának szempontjából is. Ez az összefoglaló segítséget nyújt az orvosoknak a megfelelő posztoperatív fájdalomcsillapításba

    Effects of substrate, ceramic thickness, translucency, and cement shade on the color of CAD/CAM lithium-disilicate crowns

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    The aim of this in vitro study was to evaluate the effects of substrate colors, different levels of ceramic thickness and translucency, and cement shades on the color difference from a reference color of lithium-disilicate crowns.A premolar tooth preparation was made on a study model for 1.0 and 1.5 mm thick full-ceramic crowns. Digital impressions were taken (3Shape TRIOS) and crowns designed in a CAD program (DentalDesigner). Shade A1 crowns were milled (Everest, Kavo) from high-translucency (HT) and low-translucency IPS e.max (Ivoclar Vivadent) blocks. Twelve substrates were made of different colors and materials (Natural Die Material, Co-Cr, zirconia, and gold-colored alloy). Three different shades of try-in pastes were used to simulate the effect of cements (Variolink Esthetic try-in paste; Ivoclar). Shade measurement was done three times for each crown by a spectrophotometer (VITA Easyshade Advance); averages were compared to a reference crown (A1, HT, 1.5 mm, ND2 abutment, neutral try-in paste) with ΔE00 (CIEDE2000, according to the CIE latest standard) calculated.All the examined parameters influenced the ΔE00 of the crowns. The weakest effect was exerted by the try-in paste.All examined parameters influenced the final color of e.max CAD lithium-disilicate ceramic crowns.Matching the shade of ceramic crowns to the natural tooth color is a great challenge in dentistry. To meet patients' increasing esthetical expectations, CAD/CAM methods are very popular for full-ceramic crowns. However, several factors such as the shade of the abutment, luting cement color, ceramic thickness, and translucency may influence the final color. Our objective was to measure the optical effect of these factors on the final shade of CAD/CAM lithium-disilicate ceramic crowns
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