Gaia Data Release 2: Validation of the classification of RR Lyrae and Cepheid variables with the Kepler and K2 missions

The second data release of the Gaia mission includes an advance catalog of variable stars. The classification of these stars are based on sparse photometry from the first 22 months of the mission. We set out to investigate the purity and completeness of the all-sky Gaia classification results with the help of the continuous light curves of the observed targets from the Kepler and K2 missions, focusing specifically on RR Lyrae and Cepheid pulsators, outside the Galactic Bulge region. We crossmatched the Gaia identifications with the observations collected by the Kepler space telescope. We inspected the light curves visually, then calculated the relative Fourier coefficients and period ratios for the single- and double-mode K2 RR Lyrae stars to further classify them. We identified 1443 and 41 stars classified as RR Lyrae or Cepheid variables in Gaia DR2 in the targeted observations of the two missions and 263 more RR Lyre targets in the Full-Frame Images (FFI) of the original mission. We provide the crossmatch of these sources. We conclude that the RR Lyrae catalog has a completeness between 70-78%, and provide a purity estimate between 92-98% (targeted observations) with lower limits of 75% (FFI stars) and 51% (K2 worst-case scenario). The low number of Cepheids prevents us from drawing detailed conclusions but the purity of the DR2 sample is estimated to be around 66%.Comment: 15 pages, 12 figures, 10 tables, accepted into the Gaia DR2 Special Issue in A&A. V1: submitted version, v2: accepted version. Lists available at http://konkoly.hu/~lmolnar/gaiakepler_datafiles_R1.zi

Kinetics and mechanism of the reaction of acetonyl radical, CH3(CO)CH2, with Br2

The low pressure fast discharge flow method with laser induced fluorescence detection of CH3C(O)CH2 was employed to study the kinetics of the reaction CH3C(O)CH2 + Br2 → CH3C(O)CH2Br + Br (1) at 298, 323 and 365 K. The rate coefficient at room temperature is k1 = (2.33 ± 0.04 (2σ)) 10–12 cm3 molecule–1 s–1, which increases slightly with increasing temperature. Quantum chemistry (G2) and theoretical rate theory (conventional TST) computations have supplied results in qualitative agreement with experiment. The relatively slow rate of reaction (1) can be due to the resonance stabilization of the acetonyl radical. Keywords: reaction kinetics, acetonyl radical, Br2 molecule, resonance stabilizatio

Gaia Data Release 2. Validating the classification of RR Lyrae and Cepheid variables with the Kepler and K2 missions

Context. The second data release of the Gaia mission (DR2) includes an advance catalogue of variable stars. The classifications of these stars are based on sparse photometry from the first 22 months of the mission. Aims: We set out to investigate the purity and completeness of the all-sky Gaia classification results with the help of the continuous light curves of the observed targets from the Kepler and K2 missions, focusing specifically on RR Lyrae and Cepheid pulsators, outside the Galactic bulge region. Methods: We cross-matched the Gaia identifications with the observations collected by the Kepler space telescope. We inspected the light curves visually, then calculated the relative Fourier coefficients and period ratios for the single- and double-mode K2 RR Lyrae stars to further classify them. Results: We identified 1443 and 41 stars classified as RR Lyrae or Cepheid variables in Gaia DR2 in the targeted observations of the two missions and 263 more RR Lyre targets in the full-frame images (FFI) of the original mission. We provide the cross-match of these sources. We conclude that the RR Lyrae catalogue has a completeness between 70-78%, and provide a purity estimate of between 92 and 98% (targeted observations) with lower limits of 75% (FFI stars) and 51% (K2 worst- case scenario). The low number of Cepheids prevents us from drawing detailed conclusions, but the purity of the DR2 sample is estimated to be about 66%. Full Tables A1, A4, and A5 are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz- bin/qcat?J/A+A/620/A12

A new genus of Protasteridae (Ophiuridea) from the Lower Devonian Bokkeveld Group of South Africa

Gamiroaster tempestatis, a new genus and species of Palaeozoic ophiuroid, is described from four specimens identified in the Lower DevonianVoorstehoek Formation (Ceres Subgroup, Bokkeveld Group) of SouthAfrica. This ophiuroid belongs the family Protaseridae, a Middle–Late Ordovician taxon that continued into the late Palaeozoic. This new ophiuroid forms part of a much wider fauna of the Malvinokaffric Realm, a biogeographical termused to denote the cool- to cold-water, high-latitude endemic, benthic marine, Devonian faunas of southwestern Gondwana, which also includes the invertebrate fossil assemblages of the Argentine Precordillera and the Fox Bay Formation of the Falkland Islands. The specimens were collected from an obrution deposit excavated on Karbonaatjies farm, ~145 km northeast of Cape Town in theWestern Cape. The excavated rock samples contain >700 articulated specimens of Gamiroaster tempestatis that are closely associated with two types of less common mitrate stylophorans. Silicone casts and high-resolution three-dimensional digital models obtained via micro-CT scanning of these mould fossils provided detailed morphological proxies for this taxonomic description.DST-NRF Centre of Excellence, Palaeosciences (CoE-Pal)JNC201

An epitope-specific DerG-PG70 LEAPS vaccine modulates T cell responses and suppresses arthritis progression in two related murine models of rheumatoid arthritis

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Magyarországi identitásmodellek a kora újkori Európa konfesszionális rendszerében = Models of Identities in Hungary and Confessional System of Early Modern Europe

A Debreceni Egyetem Reformációkutató és Kora Újkori Művelődéstörténeti Műhelye négy magyarországi és egy erdélyi intézmény 12 kutatójának együttműködését koordinálja. Kilenc konferenciát és workshopot, valamint egy folyamatosan működő kutatószemináriumot szerveztünk. Tagjaink magyarországi, németországi, ausztriai, olaszországi és nagy-britanniai konferenciákon vettek részt és tartottak előadásokat. Az OTKA támogatása azt tette lehetővé Kutatócsoportunknak, hogy a kora újkori Európa konfesszionális rendszerének kontextusában tudtunk kiterjedt vizsgálatokat folytatni a magyarországi vallási, nemzeti és regionális identitásokról. Az identitás különböző műfajokban, regiszterekben és szövegekben való megnyilvánulásainak vizsgálata a kulturális emlékezetben játszott szerepeik okainak feltárását segítették. Tanulmányokat, tanulmányköteteket publikáltunk magyarul, angolul, olaszul és németül, valamint adatbázisokat, monográfiákat és szövegkiadásokat jelentettünk meg a kora újkori szentekről és mártírokról. Folytattuk a 17. századi magyar puritánus prédikátor, Medgyesi Pál életművének a feltárását, akinek munkái a kora újkori protestáns emlékezet és mártírológia fontos forrása. Vizsgáltuk a kora újkori magyarországi kultúra és irodalom európai kapcsolatait. Tanulmányokat, monográfiákat és szövegkiadásokat készítettünk imádságokról, prédikációkról, ágendákról és egyházi énekekről. | Our interdisciplinary and international Research Group for Reformation and Early Modern Cultural History (University of Debrecen) developed a collaborative research project of 12 scholars in four Hungarian institutions, and one Romanian university. Nine conferences and workshops, as well as a continuous research seminary were organised by the Research Group. Our members participated and delivered papers in symposiums in Hungary, Germany, Austria, Italy, and the United Kingdom. OTKA support helped our Research Group to manage a wide investigation on religious, national, and regional identities in Hungary, in the context of early modern confessional system of Europe. Investigating of representations of identity in several genres, registers, and texts helped us to explore the reasons of their different roles in cultural memory. We published studies and volumes of studies in Hungarian, English, Italian and German, as well as databases, monographs and text editions on various representations of early modern saints and martyrs. We continued the basic research and publication of the oeuvre of the seventeenth century Hungarian Puritan preacher, Pál Medgyesi, whose works are important sources of early modern Protestant cultural memory, and martyrdom. We investigated the European connections of early modern Hungarian culture and literature. Studies, monographs and text editions on prayers, sermons, agendas, and congregational songs were also written

Terhes nők szájhigiénés ismeretei, szokásai az ezredfordulón Délkelet-Magyarországon

Among the predisposing agents for inflammatory periodontal lesion dental plaque is the most important, but different local and systemic factors may influence the seriousness or progression of periodontitis. Hormonal changes during pregnancy belong to the systemic aggravating factors. The aim of the present study was to assess pregnant women's oral hygiene knowledge and habits, and if these have a relationship with age, residence, educational level and profession/occupation. Questionnaires were used for the data collection. 275 pregnant women, who underwent prenatal care at the Department of Obstetrics and Gynecology in Szeged, volunteered to answer the questions. The results showed that almost all the women brushed their teeth daily, but only about one third of them used special oral hygiene tools, like dental floss. Many of the women claimed to have gingival bleeding when brushing their teeth. More then 70% visited a dentist during pregnancy. There was a significant relationship between educational level and the use of dental floss (p=0.004) and gingival bleeding (p=0.023) Oral hygiene education, dental and periodontal treatment of pregnant women need more emphasis during prenatal care

APPLICABILITY OF THE TOBEC METHOD IN SELECTION OF HEN’S EGGS BASED ON THEIR COMPOSITION

Applicability of the TOBEC method (electrical conductivity) was tested for the in vivo determination of different egg components and for the separation of eggs with different composition. Altogether 300 hen’s eggs – originated from a 36 weeks old ROSS-308 hybrid parent stock – were measured by TOBEC, and the extreme and average 5-5% – based on the measured values – were chosen for chemical analysis. It was established that the albumen/yolk ratio and the dry matter, crude protein and crude fat content of the eggs are in medium correlation with the E-value/egg weight ratio (r=0.47, -0.58, -0.59 and -0.35 respectively). The albumen/yolk ratio, the dry matter and the crude protein content of the eggs, selected for high and low E-value/egg weight ratio, differed significantly at P<0.05 level. The difference between the average crude fat content of the eggs in the two extreme groups was significant at P<0.10 level