Bayesian inference for orbital eccentricities

Highest posterior density intervals (HPDI's) are derived for the true eccentricities of spectroscopic binaries with measured values e ~ 0. These yield upper limits when e is below the detection threshold e_th and seamlessly transform to upper and lower bounds when e > e_th. In the main text, HPDI's are computed with an informative eccentricity prior representing orbital decay due to tidal dissipation. In an appendix, the corresponding HPDI's are computed with a uniform prior and are the basis for a revised version of the Lucy-Sweeney test, with the previous outcome e = 0 now replaced by an upper limit. Sampling experiments with known prior confirm the validity of the HPDI's.Comment: 7 pages, 6 figures. Error in terminology corrected. Results unchanged. Accepted by Astronomy & Astrophysic

The mediating role of parental reflective functioning in child social-emotional development

Parental attachment and parental reflective functioning (PRF) have been shown to be related to attachment, mentalizing capacities, and psychopathology in children. Studies also suggest that parental insecure attachment is related to lower levels of PRF. However, no study has directly investigated whether PRF dimensions mediate the relationship between parental attachment dimensions and features of social–emotional development other than attachment, mentalizing, and psychopathology. We prospectively investigated whether PRF mediates the relationship between parental attachment dimensions (i.e., levels of attachment avoidance and anxiety) and social–emotional competences and problems, using data from a 1-year longitudinal study of first-time parents and their biological children (N = 106). We found that low PRF as assessed with the Parental Reflective Functioning Questionnaire at 1-year follow-up, was an intervening variable in the relationship between parental attachment dimensions at time 1 and child social–emotional development at time 2. In particular, maternal attachment avoidance and paternal attachment anxiety were indirectly related to child competences and problems through high levels of prementalizing modes (i.e., attributing malevolent mental states to the child and an inability to enter the child’s internal world). In addition, in mothers only, there was a partial mediation effect of PM in the relation between attachment anxiety and child competences

Do parental reflective functioning and parental competence affect the socioemotional adjustment of children?

Parental reflective functioning refers to the parents’ ability to reflect on their children’s mental states, and is increasingly considered to be a key feature of competent parenting. However, to date, no study has empirically investigated this assumption. The main objective of the present study was therefore to investigate the mediating role of parental competence in the relationship between parental reflective functioning and children’s socioemotional adjustment. We also investigated whether these relationships were similar for mothers and fathers. The study was carried out in a sample of 433 mothers and 113 fathers of infants aged from 2 to 36 months. Participants had to complete the Spanish version of the Perceived Parental Competence Scale, the Parental Reflective Functioning Questionnaire and the Ages & Stages Questionnaire. Results showed, as expected, that parental competence mediated the association between parental reflective functioning and infants’ emotional adjustment. Multigroup analysis supported the invariance of the structural model across mothers and fathers. The implications of these results for pediatric and primary care are discussed

Moored velocity measurements on the edge of the Gulf-Stream recirculation

Mean velocities, eddy kinetic energies and time series of velocities at several depths are presented from moored current meters for the 15 month period May 1978 to July 1979 as part of the POLYMODE Local Dynamics Experiment, centered at 31N, 69°30\u27W. The mean velocities in the upper one kilometer are toward the southwest at 2.4 to 4.4 cm/s, consistent with Worthington\u27s (1976) description of the mean circulation of the North Atlantic...

The value-added of primary schools: what is it really measuring?

This paper compares the official value-added scores in 2005 for all primary schools in three adjacent LEAs in England with the raw-score Key Stage 2 results for the same schools. The correlation coefficient for the raw- and value-added scores of these 457 schools is around +0.75. Scatterplots show that there are no low attaining schools with average or higher value-added, and no high attaining schools with below average value-added. At least some of the remaining scatter is explained by the small size of some schools. Although some relationship between these measures is to be expected – so that schools adding considerable value would tend to have high examination outcome scores – the relationship shown is too strong for this explanation to be considered sufficient. Value-added analysis is intended to remove the link between a schools’ intake scores and their raw-score outcomes at KS2. It should lead to an estimate of the differential progress made by pupils, assessed between schools. In fact, however, the relationship between value-added and raw scores is of the same size as the original relationship between intake scores and raw-scores that the value-added is intended to overcome. Therefore, however appealing the calculation of value-added figures is, their development is still at the stage where they are not ready to move from being a research tool to an instrument of judgement on schools. Such figures may mislead parents, governors and teachers and, even more importantly, they are being used in England by OFSTED to pre-determine the results of school inspections

Mentaliseren

Mentaliseren of reflectief functioneren verwijst naar de capaciteit om jezelf en anderen te begrijpen in termen van interne mentale toestanden. Mentaliseren is een koepelterm die verwante begrippen omvat, waaronder Theory of Mind (ToM), empathie en mindfulness. De capaciteit tot mentaliseren is essentieel om te kunnen functioneren in onze sociale maatschappij. Omdat mentaliseren zulke fundamenteel menselijke capaciteit is, spelen tijdelijke of meer permanente verstoringen in deze capaciteit een rol in nagenoeg alle emotionele en gedragsproblemen. Verstoringen in de capaciteit tot mentaliseren vormen dan ook een transtheoretische en transdiagnostische kwetsbaarheidsfactor voor psychopathologie. In dit hoofdstuk beschrijven we de ontwikkeling van de capaciteit tot mentaliseren in de kindertijd en adolescentie aan de hand van onderzoeksbevindingen. Vervolgens gaan we dieper in op het spectrum van mentaliserend-bevorderende preventie- en interventieprogramma’s en hun effectiviteit. We sluiten deze bijdrage af met een samenvatting van de basishouding en typische interventies die aan de basis liggen van alle mentaliserend-bevorderende interventies

Discoveries from a Near-infrared Proper Motion Survey using Multi-epoch 2MASS Data

We have conducted a 4030-square-deg near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD. After comparison to DSS images, we find that 107 of our proper motion candidates lack counterparts at B-, R-, and I-bands and are thus 2MASS-only detections. We present results of spectroscopic follow-up of 188 targets that include the infrared-only sources along with selected optical-counterpart sources with faint reduced proper motions or interesting colors. We also establish a set of near-infrared spectroscopic standards with which to anchor near-infrared classifications for our objects. Among the discoveries are six young field brown dwarfs, five "red L" dwarfs, three L-type subdwarfs, twelve M-type subdwarfs, eight "blue L" dwarfs, and several T dwarfs. We further refine the definitions of these exotic classes to aid future identification of similar objects. We examine their kinematics and find that both the "blue L" and "red L" dwarfs appear to be drawn from a relatively old population. This survey provides a glimpse of the kinds of research that will be possible through time-domain infrared projects such as the UKIDSS Large Area Survey, various VISTA surveys, and WISE, and also through z- or y-band enabled, multi-epoch surveys such as Pan-STARRS and LSST.Comment: To appear in the September 2010 issue of The Astrophysical Journal, Supplement Serie

How nursing home residents with dementia respond to the interactive art installation ‘VENSTER’: a pilot study

The goal of this study was (1) to determine whether and how nursing home residents with dementia respond to the interactive art installation in general and (2) to identify whether responses change when the content type and, therefore, the nature of the interaction with the artwork changes. The interactive art installation ‘VENSTER’ evokes responses in nursing home residents with dementia, illustrating the potential of interactive artworks in the nursing home environment. Frequently observed responses were naming, recognizing or asking questions about depicted content and how the installation worked, physically gesturing towards or tapping on the screen and tapping or singing along to the music. It seemed content matters a lot. When VENSTER is to be used in routine care, the choice of a type of content is critical to the intended experience/usage in practice. In this study, recognition seemed to trigger memory and (in most cases) a verbal reaction, while indistinctness led to asking for more information. When (initially) coached by a care provider, residents actively engaged physically with the screen. Responses differed between content types, which makes it important to further explore different types of content and content as an interface to provide meaningful experiences for nursing home residents. Implications for rehabilitation: - VENSTER can facilitate different types of responses ranging from verbal reactions to active physical engagement. The choice of a type of content is critical to the intended experience/usage in practice. - Activating content seems suitable for use as a meaningful experience during the spare time in between existing activities or therapy. - Sessions with interactive content are short (avg. 30 mins) and intense and can therefore potentially be used as an activating therapy, activity or exercise. - In order to actively engage residents with dementia, the role of the care provider seems very important

Spatial and Temporal Scales of Sverdrup Balance

Sverdrup balance underlies much of the theory of ocean circulation and provides a potential tool for describing the interior ocean transport from only the wind stress. Using both a model state estimate and an eddy-permitting coupled climate model, this study assesses to what extent and over what spatial and temporal scales Sverdrup balance describes the meridional transport. The authors find that Sverdrup balance holds to first order in the interior subtropical ocean when considered at spatial scales greater than approximately 5°. Outside the subtropics, in western boundary currents and at short spatial scales, significant departures occur due to failures in both the assumptions that there is a level of no motion at some depth and that the vorticity equation is linear. Despite the ocean transport adjustment occurring on time scales consistent with the basin-crossing times for Rossby waves, as predicted by theory, Sverdrup balance gives a useful measure of the subtropical circulation after only a few years. This is because the interannual transport variability is small compared to the mean transports. The vorticity input to the deep ocean by the interaction between deep currents and topography is found to be very large in both models. These deep transports, however, are separated from upper-layer transports that are in Sverdrup balance when considered over large scales

Advancing osteochondral tissue engineering: bone morphogenetic protein, transforming growth factor, and fibroblast growth factor signaling drive ordered differentiation of periosteal cells resulting in stable cartilage and bone formation in vivo.

Chondrogenic mesenchymal stem cells (MSCs) have not yet been used to address the clinical demands of large osteochondral joint surface defects. In this study, self-assembling tissue intermediates (TIs) derived from human periosteum-derived stem/progenitor cells (hPDCs) were generated and validated for stable cartilage formation in vivo using two different animal models.status: publishe