bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ökologische Sukzession der Fischfauna im neuen Traisen-Laufes in den Jahren 2014 bis 2017
Authors: Friedrich Thomas , Erhard Felix , Pinter Kurt , Reckendorfer Walter , Schmutz Stefan , Unfer Günther 
Published: March 2018

Zusammenfassung
Der Unterlauf der Traisen wurde von 2012 bis 2016 im Rahmen eines LIFE+ Projektes auf rund 10 km Länge gänzlich neu gestaltet. Dabei wurde der alte kanalisierte Arm mit mehreren Sohlschwellen als Altwasser bzw. Überwasserkanal erhalten und ein völlig neuer, naturnaher Lauf durch den Auwald angelegt. Das begleitende Monitoring der Fischfauna wird jährlich mittels verschiedener Methoden durchgeführt und zeigt bereits im kurzen Zeitraum seit der Fertigstellung eine schnelle Besiedelung durch eine Vielzahl von Arten und sehr hohe Dichten. Während der alte Lauf keine Laich- und kaum Juvenilhabitate aufwies, sind im neuen Lauf sehr hohe Jungfischzahlen verschiedenster Arten zu beobachten. Vor allem die vollständige Öffnung des Kontinuums zur Donau am Ende der Bauarbeiten führte unmittelbar zu einem Anstieg und dem Nachweis der Reproduktion donautypischer Fischarten.
Historische Landnutzung und Siedlungsentwicklung in Flussauen und Hochwasserschutz: Das Beispiel der Traisen und St. Pöltens 1870–2000
Authors: Haidvogl Gertrud , Eberstaller Jürgen , Eberstaller-Fleischanderl Doris , Fraiß Bernhard , Gabriel Hannes , Hohensinner Severin 
Published: March 2018

Zusammenfassung
Auen sind ein wichtiger Teil des Ökosystems Flusslandschaft. Ihre Ausdehnung und ökologische Funktionsfähigkeit haben vor allem in den letzten 200 Jahren durch die zunehmende menschliche Nutzung stark abgenommen. Die Kolonisierung von Flussauen ging Hand in Hand mit einem grundlegenden Wandel im Hochwasserschutz. Dieser Artikel beschreibt anhand des Beispiels der Traisenflusslandschaft im Bereich der Stadt St. Pölten die parallel verlaufenden und sich gegenseitig beeinflussenden Prozesse von Landnutzungsänderung, Siedlungsentwicklung und Ausbau technischer Hochwasserschutzmaßnahmen. Im räumlichen und zeitlichen Verlauf der Siedlungsentwicklung St. Pöltens in den Traisenauen waren Industrialisierung, Urbanisierung, städtische Planung und technische Hochwasserschutzpraktiken treibende Faktoren. Die Stadt dehnte sich im 20. Jahrhundert kontinuierlich in die Traisenauen aus. Diese Expansion beschränkte sich zunächst auf die Ränder des HQ100-Abflussraums, während entlang der seit 1909 existierenden Hochwasserschutzdämme bis 1960 ein Grünland- bzw. Auwaldstreifen verblieb. Dieser wurde bewusst von Bebauung freigehalten und bei größeren Hochwässern überschwemmt. Nach dem Hochwasser von 1959 gab die Stadt auch die traisennahen Flächen als Bauzonen frei. Diese Entscheidung fiel parallel zum Entschluss, den Hochwasserschutz auf ein 100-jährliches Abflussereignis auszubauen. In den folgenden Jahrzehnten entstanden auch direkt an der Traisen dauerhafte Wohngebäude und -siedlungen. Aktuell stellen die vorhandenen Nutzungen sowie die dadurch verursachten ökologischen Folgen das Gewässermanagement vor große Herausforderungen. Diese können nur mithilfe von einzugsgebietsbezogener Planung, der Integration von vielfältigen Anforderungen inklusive der Ökologie und der Berücksichtigung der Raumplanung als Steuerungsinstrument gelöst werden.
Implant failure in bilateral metal-on-metal hip resurfacing arthroplasties: a clinical and pathological study
Authors: Uchihara Yoshinubo , Grammatopoulos George , Munemoto Mitsuru , Matharu Gulraj , Inagaki Yusuke , Pandit Hemant , Tanaka Yasuhito , Athanasou Nick A. 
Published: March 2018

Abstract
Metal-on-metal hip resurfacing arthroplasties (MoMHRAs) have a high failure rate due to pseudotumour formation. It is not certain whether pseudotumours in bilateral MoMHRAs form on the basis of an adverse reaction to metal debris (ARMD) that is entirely due to a local innate and adaptive immune response to Cobalt-Chrome (Co-Cr) wear particles. To determine if there is a systemic component to ARMD in bilateral MoMHRAs, we examined the histology of ARMD in unilateral and bilateral MoMHRAs revised for pseudotumour and determined whether implant survival differed between these two groups. Periprosthetic tissue specimens from 119 hips revised for pseudotumour were examined. These were derived from 109 patients including 10 patients with bilateral MoMHRAs and 99 with sunilateral MoMHRAs including a cohort of 20 patients with bilateral MoMHRAs that had undergone only one MoMHRA revision for pseudotumour. The mean time to revision for pseudotumour of unilateral and bilateral MoMHRAs was determined. The histology of periprosthetic tissue was examined for evidence of the innate and adaptive immune response and scored semi-quantitatively. There was no significant difference in histological features of the innate / adaptive response between Group 1 bilateral pseudotumours and Group 2 and Group 3 unilateral pseudotumours. Histological features, including ALVAL scores, were similar in the periprosthetic tissues of right and left hips in Group 1 bilateral MoMHRAs. The mean time to first revision for pseudotumour of bilateral MoMHRAs (6.59 years) was not decreased compared with unilateral MoMHRAs (5.66 years) or bilateral MoMHRAs that had only one revision (7.05 years). Right and left hip pseudotumours in bilateral MoMHRAs exhibit similar histological features of the innate and adaptive immune response. Mean implant survival is not decreased in bilateral compared with unilateral MoMHRA cases. The findings suggest that pseudotumour formation is due more to a local than a systemic innate /adaptive immune response to components of metal wear.
Disopyramide use in infants and children with hypertrophic cardiomyopathy
Authors: O’Connor Matthew J. , Miller Kelley , Shaddy Robert E. , Lin Kimberly Y. , Hanna Brian D. , Ravishankar Chitra , Rossano Joseph W. 
Published: March 2018

AbstractHypertrophic cardiomyopathy has a range of clinical severity in children. Treatment options are limited, mainly on account of small patient size. Disopyramide is a sodium channel blocker with negative inotropic properties that effectively reduces left ventricular outflow tract gradients in adults with hypertrophic cardiomyopathy, but its efficacy in children is uncertain. A retrospective chart review of patients ⩽21 years of age with hypertrophic cardiomyopathy at our institution and treated with disopyramide was performed. Left ventricular outflow tract Doppler gradients before and after disopyramide initiation were compared as the primary outcome measure. Nine patients received disopyramide, with a median age of 5.6 years (range 6 days–12.9 years). The median left ventricular outflow tract Doppler gradient before initiation of disopyramide was 81 mmHg (range 30–132 mmHg); eight patients had post-initiation echocardiograms, in which the median lowest recorded Doppler gradient was 43 mmHg (range 15–100 mmHg), for a median % reduction of 58.2% (p=0.002). With median follow-up of 2.5 years, eight of nine patients were still alive, although disopyramide had been discontinued in six of the nine patients. Reasons for discontinuation included septal myomectomy (four patients), heart transplantation (one patient), and side effects (one patient). Disopyramide was effective for the relief of left ventricular outflow tract obstruction in children with hypertrophic cardiomyopathy, although longer-term data suggest that its efficacy is not sustained. In general, it was well tolerated. Further study in larger patient populations is warranted.
Parental perception of child weight and its association with weight-related parenting behaviours and child behaviours: a Chinese national study
Authors: Zhang Ting , Cai Li , Jing Jin , Ma Lu , Ma Jun , Chen Yajun 
Published: March 2018

AbstractObjectiveParents commonly fail to correctly recognize the weight status of their child. Whether parental perception of child weight is associated with weight-related parenting behaviours and child behaviours is unclear. The present study aimed to investigate the distribution of parental perception of child weight and its associations with weight-related parenting behaviours and child behaviours in China.DesignCross-sectional study.SettingSeven provinces in China.SubjectsA total of 47 417 children aged 6–17 years and their parents were included from a national survey in 2013. Parental perception of child weight, weight-related parenting behaviours and child behaviours were self-reported. Child’s weight and height were objectively measured.ResultsA total of 30·5 % of parents underestimated and 8·7 % overestimated the child’s weight. Parental underestimation was more common among younger children, boys and children with a lower BMI Z-score. Parents who perceived that their child had a healthy weight (accurately or inaccurately) were more likely to prepare breakfast for the child, exercise with him/her, set apart his/her exercise time, restrict his/her screen time, and were less likely to store soft drinks for the child. Children perceived to have a healthy weight, regardless of their actual weight status, behaved healthier on dietary intake, physical activity and homework time.ConclusionsParental underestimation of their child’s weight was prominent in China, especially among younger children, boys and children with a lower BMI Z-score. Parental recognition of their child being overweight did not appear to translate into healthy changes in weight-related parenting behaviours or child behaviours.
Nano-JASMINE and small-JASMINE data analysis
Authors: Yamada Yoshiyuki , Shirasaki Yuji , Nishi Ryoichi 
Published: March 2018

AbstractSpace astrometry missions Nano-JASMINE and small-JASMINE are planned in Japan. Data analysis tasks are performed under Gaia-JASMINE collaboration in long time. We expected to achieve 3 mas accuracy in Nano-JASMINE, and 20 micro arcsec in small-JASMINE of astrometric performance. Gaia DR1 publication and instruction is done from NAOJ and Niigata University.
The TGAS HR diagram of barium stars
Authors: Escorza A. , Boffin H. M. J. , Jorissen A. , Siess L. , Van Eck S. , Shetye S. , Pourbaix D. , Van Winckel H. 
Published: March 2018

AbstractBarium stars are formed via binary interaction with a former AGB companion. Observations are needed to constrain theoretical models and better understand their evolution and surface composition. We present the HR diagram of Ba and related stars, using the recently released TGAS parallaxes, and the mass distribution of the Ba giants that we derived from it.
Runaway companions of supernova remnants with Gaia
Authors: Boubert Douglas , Fraser Morgan , Evans N. Wyn 
Published: March 2018

AbstractIt is expected that most massive stars have companions and thus that some core-collapse supernovae should have a runaway companion. The precise astrometry and photometry provided by Gaia allows for the systematic discovery of these runaway companions. We combine a prior on the properties of runaway stars from binary evolution with data from TGAS and APASS to search for runaway stars within ten nearby supernova remnants. We strongly confirm the existing candidate HD 37424 in S147, propose the Be star BD+50 3188 to be associated with HB 21, and suggest tentative candidates for the Cygnus and Monoceros Loops.
Close stellar encounters with the Sun from the first Gaia Data Release
Authors: Bailer-Jones Coryn A. L. 
Published: March 2018

AbstractI present preliminary results of searching for close stellar encounters with the Sun using the first Gaia data release. Gl 710 is found to be a much closer encounter than found in pre-TGAS studies. More detailed results will be reported in an upcoming publication (Bailer-Jones 2017, in preparation).
Gaia view of low-mass star formation
Authors: Manara C. F. , Prusti T. , Voirin J. , Zari E. 
Published: March 2018

AbstractUnderstanding how young stars and their circumstellar disks form and evolve is key to explain how planets form. The evolution of the star and the disk is regulated by different processes, both internal to the system or related to their environment. The former include accretion of material onto the central star, wind emission, and photoevaporation of the disk due to high-energy radiation from the central star. These are best studied spectroscopically, and the distance to the star is a key parameter in all these studies. Here we present new estimates of the distance to a complex of nearby star-forming clouds obtained combining TGAS distances with measurement of extinction on the line of sight. Furthermore, we show how we plan to study the effects of the environment on the evolution of disks with Gaia, using a kinematic modelling code we have developed to model young star-forming regions.
New Astronomical Reduction of Old Observations (the NAROO project)
Authors: Arlot Jean-Eudes , Robert Vincent , Lainey Valery , Neiner Coralie , Thouvenin Nicolas 
Published: March 2018

AbstractThe Gaia astrometric reference catalogue will provide star proper motions with an accuracy of one mas one century ago for stars of magnitude 14 or brighter. Our project is to re-reduced the old observations with the new catalogue allowing to have an astrometric accuracy only limited by the observational biases and not by reference stars. Then, we plan to get an accuracy of 50 mas where the old reductions were not better than 500 mas!For our purpose, we will digitize old photographic plates with a sub-micrometric scanner. Tests were made using the UCAC catalogue showing that old photographic plates have an intrinsect accuracy of 30 to 60 mas.
Age dependence of metallicity gradients in the Galactic disc from astrometry and asteroseismology
Authors: Casagrande Luca 
Published: March 2018

AbstractAsteroseismology allows us to determine stellar parameters (distances, masses and ages) independently from Gaia astrometry, and it provides us with a new and complementary tool for studying stellar populations in the Galaxy. The prospects and synergies that asteroseismic and astrometric space-borne missions reserve to the field of Galactic archaeology are marvellous, and results have already started to emerge. For example, the study of metallicity gradients as function of age will provide powerful constraints to understand the evolution of the Milky Way disc at high-redshift.
The Tycho-Gaia Astrometric Solution
Authors: Lindegren Lennart 
Published: March 2018

AbstractGaia DR1 is based on the first 14 months of Gaia's observations. This is not long enough to reliably disentangle the parallax effect from proper motion. For most sources, therefore, only positions and magnitudes are given. Parallaxes and proper motions were nevertheless obtained for about two million of the brighter stars through the Tycho-Gaia astrometric solution (TGAS), combining the Gaia observations with the much earlier Hipparcos and Tycho-2 positions. In this review I focus on some important characteristics and limitations of TGAS, in particular the reference frame, astrometric uncertainties, correlations, and systematic errors.
Open star clusters and Galactic structure
Authors: Joshi Yogesh C. 
Published: March 2018

AbstractIn order to understand the Galactic structure, we perform a statistical analysis of the distribution of various cluster parameters based on an almost complete sample of Galactic open clusters yet available. The geometrical and physical characteristics of a large number of open clusters given in the MWSC catalogue are used to study the spatial distribution of clusters in the Galaxy and determine the scale height, solar offset, local mass density and distribution of reddening material in the solar neighbourhood. We also explored the mass-radius and mass-age relations in the Galactic open star clusters. We find that the estimated parameters of the Galactic disk are largely influenced by the choice of cluster sample.
Revisiting TW Hydrae association in light of Gaia-DR1
Authors: Teixeira R. , Gonoretzky E. R. , Ducourant C. , Galli P. A. B. , Krone-Martins A. G. O. 
Published: March 2018

AbstractTW Hydrae is a very young and nearby association with about 30 known members which is an excellent target for studies on stellar evolution since several of its members present a particular interest (planetary system, brown dwarfs, etc.). With the new data from TGAS and the Gaia DR1 eventually combined with others astrometric data we intend to improve our kinematic knowledge of this association.
Finding the stars that reionized the Universe
Authors: Sharma Mahavir , Theuns Tom , Frenk Carlos 
Published: March 2018

AbstractWe study the abundance of the remnants of stars that reionized the Universe in galaxies in the present day Universe using the eagle cosmological hydrodynamical simulation. High mass galaxies contain most of these ‘reionizers’. The fractional number of galaxies that do not host reionizers increases with decreasing stellar mass, M⋆. For the galaxies that host reionizers, the fraction of mass of the galaxy in reionizers increases with decreasing M⋆, such that the fraction is low (~10−4) for high mass galaxies and can be as high as 0.1 in low mass galaxies, M⋆ ≤ 107 M⊙. In Milky-Way like galaxies, the distribution of reionizers is spatially more extended than that of normal stars.
HST Proper Motions of Distant Globular Clusters: Constraining the Formation & Mass of the Milky Way
Authors: Sohn S. Tony , van der Marel Roeland P. , Deason Alis , Bellini Andrea , Besla Gurtina , Watkins Laura 
Published: March 2018

AbstractProper motions (PMs) are required to calculate accurate orbits of globular clusters (GCs) in the Milky Way (MW) halo. We present our HST program to create a PM database for 20 GCs at distances of RGC = 10–100 kpc. Targets are discussed along with PM measurement methods. We also describe how our PM results can be used for Gaia as an external check, and discuss the synergy between HST and Gaia as astrometric instruments in the coming years.
Dynamics of the Oort Cloud In the Gaia Era I: Close Encounters
Authors: Torres S. , Zwart S. Portegies , Brown A. G. A. 
Published: March 2018

AbstractComets in the Oort cloud evolve under the influence of internal and external perturbations from giant planets to stellar passages, the Galactic tides, and the interstellar medium.Using the positions, parallaxes and proper motions from TGAS in Gaia DR1 and combining them with the radial velocities from the RAVE-DR5, Geneva-Copenhagen and Pulkovo catalogues, we calculated the closest encounters the Sun has had with other stars in the recent past and will have in the near future. We find that the stars with high proper motions near to the present time are missing in the Gaia-TGAS, and those to tend to be the closest ones. The quality of the data allows putting better constraints on the encounter parameters, compared to previous surveys.
The evolution history of the extended solar neighbourhood
Authors: Just Andreas , Sysoliatina Kseniia , Koutsouridou Ioanna 
Published: March 2018

AbstractOur detailed analytic local disc model (JJ-model) quantifies the interrelation between kinematic properties (e.g. velocity dispersions and asymmetric drift), spatial parameters (scale-lengths and vertical density profiles), and properties of stellar sub-populations (age and abundance distributions). We discuss a radial extension of the disc evolution model representing an inside-out growth of the thin disc with constant thickness. Based on metallicity distributions of APOGEE red clump stars we derive the AMR as function of galactrocentric distance and show that mono-abundance as well as mono-age populations are flaring. The predictions of the JJ-model are consistent with the TGAS-RAVE data, which provide a significant improvement of the kinematic data and unbiased distances for more than 250,000 stars.
G-Band Period-Luminosity Relation For Galactic Cepheids Based on Gaia DR1 Measurements
Authors: Ngeow Chow-Choong , Bhardwaj Anupam , Kanbur Shashi M. 
Published: March 2018

AbstractClassical Cepheids (hereafter Cepheids) are important standard candle as they obey the famous period-luminosity (PL) relation. Parallax measurements from Gaia offer a unique opportunity to derive or calibrate the PL relations for Galactic Cepheids, as traditionally their distances were measured via different methods. In this work, we attempted to derive the Gaia G-band PL relation based on the Gaia Data Release 1 (DR1) measurements. We adopted the inferred distances provided by Astraatmadja & Bailer-Jones (2016), calculated using two priors in a Bayesian analysis, and cross-matched to known Galactic Cepheids. The resulting G-band PL relation, however, exhibits a much larger scatter than expected. Hence the inferred distances based on the Gaia DR1 parallaxes are not suitable for calibrating the Galactic PL relation, and future Data Releases with improved parallax measurements are desirable.
Reanalysis of 24 Nearby Open Clusters using Gaia data
Authors: Yen Steffi X. , Reffert Sabine , Röser Siegfried , Schilbach Elena , Kharchenko Nina V. , Piskunov Anatoly E. 
Published: March 2018

AbstractWe have developed a fully automated cluster characterization pipeline, which simultaneously determines cluster membership and fits the fundamental cluster parameters: distance, reddening, and age. We present results for 24 established clusters and compare them to literature values. Given the large amount of stellar data for clusters available from Gaia DR2 in 2018, this pipeline will be beneficial to analyzing the parameters of open clusters in our Galaxy.
[Y/Mg] stellar dating calibration
Authors: Titarenko A. , Recio-Blanco A. , de Laverny P. , Hayden M. , Guiglion G. , Worley C. 
Published: March 2018

AbstractGaia DR1 has opened a new era of stellar age dating, that is crucial for many astrophysical objectives. In addition, the Gaia based isochrone fitting ages can be compared to other chemical clocks like the [Y/Mg] one (Nissen et al. 2015). In our work we have used ESO archived data of the AMBRE project (de Laverny et al. 2013) for UVES spectra, in order to evaluate the age [Y/Mg] abundance correlation for turn off stars. 310 turn off stars of the UVES-archive (setups 564 and 580) are included in the TGAS database. Isochrone fitting ages were derived. We have applied the GAUGUIN procedure for those stars to derive the Mg and the Y abundances. As the result we present the [Y/Mg] vs stellar age dependence for ~40 TO-stars.
Detailed analysis of clonal evolution and cytogenetic evolution patterns in patients with myelodysplastic syndromes (MDS) and related myeloid disorders
Authors: Schanz Julie , Cevik Naciye , Fonatsch Christa , Braulke Friederike , Shirneshan Katayoon , Bacher Ulrike , Haase Detlef 
Published: March 2018

AbstractClonal cytogenetic evolution (CE) (i.e., acquisition of new chromosomal aberrations over time) is relevant for the progression of myelodysplastic syndromes (MDS). We performed detailed analysis of CE in 729 patients with MDS and related disorders. Patients with CE showed shorter survival (median OS 18.0 versus 53.9 months; P < 0.01), higher leukemic transformation rate (48.0% versus 21.4%; P < 0.01) and shorter intervals to leukemic transformation (P < 0.01). Two main CE patterns were detected: early versus late CE (median onset 5.3 versus 21.9 months; P < 0.01) with worse survival outcomes for early CE. In the case of CE, del (7q)/−7 (P = 0.020) and del (17p) (P = 0.002) were especially unfavorable. Extending the evolution patterns from Tricot et al. (1985) forming five subgroups, prognosis was best (median OS not reached) in patients with “transient clones/changing clone size”, whereas those with “CE at diagnosis” showed very poor outcomes (P < 0.01 for comparison of all). Detailed sequential cytogenetic analysis during follow-up improves prognostication in MDS patients and acknowledges the dynamic biology of the disease. Evidence, time-point, and patterns of cytogenetic clonal evolution should be included into future prognostic scoring systems for MDS.