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The GALAH survey and Gaia DR2 : (non-)existence of five sparse high-latitude open clusters

Sparse open clusters can be found at high galactic latitudes where loosely populated clusters are more easily detected against the lower stellar background. Because most star formation takes place in the thin disc, the observed population of clusters far from the Galactic plane is hard to explain. We combined spectral parameters from the GALAH survey with the Gaia DR2 catalogue to study the dynami

The GALAH survey : Accurate radial velocities and library of observed stellar template spectra

GALAH is a large-scale magnitude-limited southern stellar spectroscopic survey. Its second data release (GALAH DR2) provides values of stellar parameters and abundances of 23 elements for 342 682 stars (Buder et al.). Here we add a description of the public release of radial velocities with a typical accuracy of 0.1 km s -1 for 336 215 of these stars, achievable due to the large wavelength covera

The GALAH Survey : Second data release

The Galactic Archaeology with HERMES (GALAH) survey is a large-scale stellar spectroscopic survey of theMilkyWay, designed to deliver complementary chemical information to a large number of stars covered by the Gaia mission. We present the GALAH second public data release (GALAH DR2) containing 342 682 stars. For these stars, the GALAH collaboration provides stellar parameters and abundances for

Conceptual Confusions and Causal Dynamics

It is argued that rules and norms are conceptually distinct. What is norm is not a rule, and vice versa. Versions of conflating the two are discussed and an argument for distinction given. Objections to the argument are responded to. It is accepted that rules and norms are intimately related, but they are so causally, not conceptually. What norms we live by makes a difference to what rules we acceThis paper argues that rules and norms are conceptually distinct: what is norm is not thereby rule, and vice versa. Versions of conflating the two are discussed and an argument for distinction given. Two objections to the argument are responded to. It is accepted that rules and norms are often intimately related. They are so causally, not conceptually: what norms we live by can make a difference t

Responding to Other People's Direct Gaze : Alterations in Gaze Behavior in Infants at Risk for Autism Occur on Very Short Timescales

Atypical gaze processing has been reported in children with autism spectrum disorders (ASD). Here we explored how infants at risk for ASD respond behaviorally to others' direct gaze. We assessed 10-month-olds with a sibling with ASD (high risk group; n = 61) and a control group (n = 18) during interaction with an adult. Eye-tracking revealed less looking at the adult in the high risk group during

Annual Research Review : Quality of life and childhood mental and behavioural disorders - a critical review of the research

BACKGROUND: An individual's subjective perception of well-being is increasingly recognized as an essential complement to clinical symptomatology and functional impairment in children's mental health. Measurement of quality of life (QoL) has the potential to give due weight to the child's perspective.SCOPE AND METHODOLOGY: Our aim was to critically review the current evidence on how childhood menta

The objectivity of the Autism Diagnostic Observation Schedule (ADOS) in naturalistic clinical settings

The Autism Diagnostic Observation Schedule (ADOS) is a first-choice diagnostic tool in autism spectrum disorder (ASD). Excellent interpersonal objectivity (interrater reliability) has been demonstrated for the ADOS under optimal conditions, i.e., within groups of highly trained "research reliable" examiners in research setting. We investigated the spontaneous interrater reliability among clinicall

The New DSM-5 Impairment Criterion : A Challenge to Early Autism Spectrum Disorder Diagnosis?

The possible effect of the DSM-5 impairment criterion on diagnosing autism spectrum disorder (ASD) in young children was examined in 127 children aged 20-47 months with a DSM-IV-TR clinical consensus diagnosis of ASD. The composite score of the Vineland Adaptive Behavior Scales (VABS) served as a proxy for the DSM-5 impairment criterion. When applying a mild level of impairment (cutoff: 1 SD below

Hypersensitive pupillary light reflex in infants at risk for autism

BACKGROUND: Post mortem brain tissue data and animal modeling work indicate cholinergic disruptions in autism. Moreover, the cholinergic system plays a key role in the early neurodevelopmental processes believed to be derailed early in life in individuals with the disorder. Yet, there is no data from human infants supporting a developmentally important role of this neurotransmitter system. Because

Autism Diagnostic Interview-Revised (ADI-R) Algorithms for Toddlers and Young Preschoolers : Application in a Non-US Sample of 1,104 Children

The current study aimed to investigate the Autism Diagnostic Interview-Revised (ADI-R) algorithms for toddlers and young preschoolers (Kim and Lord, J Autism Dev Disord 42(1):82-93, 2012) in a non-US sample from ten sites in nine countries (n = 1,104). The construct validity indicated a good fit of the algorithms. The diagnostic validity was lower, with satisfactorily high specificities but modera

The added value of the combined use of the Autism Diagnostic Interview-Revised and the Autism Diagnostic Observation Schedule : diagnostic validity in a clinical Swedish sample of toddlers and young preschoolers

The diagnostic validity of the new research algorithms of the Autism Diagnostic Interview-Revised and the revised algorithms of the Autism Diagnostic Observation Schedule was examined in a clinical sample of children aged 18-47 months. Validity was determined for each instrument separately and their combination against a clinical consensus diagnosis. A total of N = 268 children (n = 171 with autis

Autism spectrum disorders in the Stockholm Youth Cohort : design, prevalence and validity

OBJECTIVE: Reports of rising prevalence of autism spectrum disorders (ASD), along with their profound personal and societal burden, emphasize the need of methodologically sound studies to explore their causes and consequences. We here present the design of a large intergenerational resource for ASD research, along with population-based prevalence estimates of ASD and their diagnostic validity.METH

WISC-III index score profiles of 520 Swedish children with pervasive developmental disorders

WISC-III (Wechsler, 1991) index score profiles and their characteristics were examined with traditional statistics in a large Swedish sample consisting of children with autistic disorder (n = 85), Asperger's disorder (n = 341), or pervasive developmental disorders not otherwise specified (PDD-NOS; n = 94). There was a clear and significant difference in level between children with Asperger's disor

Accurate Orbital Solution for the New and Metal-poor Eclipsing Binary Tycho 5227-1023-1

The orbit and physical parameters of the previously unsolved double-lined eclipsing binary Tyc 5227-1023-1, discovered during the search for RR Lyr variable candidate members of the Aquarius stream, are derived using high-resolution chelle spectroscopy and V, i' photometry. A synthetic spectral analysis of both components has been performed, yielding metallicity [M/H] =-0.63± 0.11 for both stars a

The Galah Survey : Classification and Diagnostics with t-SNE Reduction of Spectral Information

Galah is an ongoing high-resolution spectroscopic survey with the goal of disentangling the formation history of the Milky Way using the fossil remnants of disrupted star formation sites that are now dispersed around the Galaxy. It is targeting a randomly selected magnitude-limited (V ≤ 14) sample of stars, with the goal of observing one million objects. To date, 300,000 spectra have been obtained

The GALAH survey : Chemical tagging of star clusters and new members in the Pleiades

The technique of chemical tagging uses the elemental abundances of stellar atmospheres to 'reconstruct' chemically homogeneous star clusters that have long since dispersed. The GALAH spectroscopic survey - which aims to observe one million stars using the Anglo- Australian Telescope - allows us to measure up to 30 elements or dimensions in the stellar chemical abundance space, many of which are no

The TESS-HERMES survey data release 1 : High-resolution spectroscopy of the TESS southern continuous viewing zone

The Transiting Exoplanet Survey Satellite (TESS) will provide high-precision time series photometry for millions of stars with at least a half-hour cadence. Of particular interest are the circular regions of 12° radius centred around the ecliptic poles that will be observed continuously for a full year. Spectroscopic stellar parameters are desirable to characterize and select suitable targets for

The 2016-2017 peak luminosity of the pre-main sequence variable V2492 Cygni

Context. V2492 Cyg is a young pre-main sequence star presenting repetitive brightness variations of significant amplitude (R - 5 mag) whose physical origin has been ascribed to both extinction (UXor-type) and accretion (EXor-type) variability, although their mutual proportion has not been clarified yet. Recently, V2492 Cyg has reached a level of brightness ever registered in the period of its docu