V3885 Sagittarius: a Comparison with a Range of Standard Model Accretion Disks

A $\widetilde{\chi}^2$ analysis of standard model accretion disk synthetic spectrum fits to combined $FUSE$ and STIS spectra of V3885 Sagittarius, on an absolute flux basis, selects a model that accurately represents the observed SED. Calculation of the synthetic spectrum requires the following system parameters. The cataclysmic variable secondary star period-mass relation calibrated by Knigge in 2007 sets the secondary component mass. A mean white dwarf (WD) mass from the same study, that is consistent with an observationally-determined mass ratio, sets the adopted WD mass of $0.7M_{\odot}$, and the WD radius follows from standard theoretical models. The adopted inclination, i=65{\arcdeg}, is a literature consensus, and is subsequently supported by $\widetilde{\chi}^2$ analysis. The mass transfer rate is the remaining parameter to set the accretion disk $T_{\rm eff}$ profile, and the $Hipparcos$ parallax constrains that parameter to $\dot{M}=5.0{\pm}2.0{\times}10^{-9} M_{\odot} {\rm yr}^{-1}$ by a comparison with observed spectra. The fit to the observed spectra adopts the contribution of a $57,000{\pm}5000$K WD. The model thus provides realistic constraints on $\dot{M}$ and $T_{\rm eff}$ for a large $\dot{M}$ system above the period gap.Comment: 41 pages, 7 figures, 9 tables. Astrophysical Journal (accepted

Far Ultraviolet Spectroscopic Explorer Spectroscopy of the Nova-like BB Doradus

We present an analysis of the Far Ultraviolet Spectroscopic Explorer ({\it{FUSE}}) spectra of the little-known southern nova-like BB Doradus. The spectrum was obtained as part of our Cycle 8 {\it FUSE} survey of high declination nova-like stars. The FUSE spectrum of BB Dor, observed in a high state, is modeled with an accretion disk with a very low inclination (possibly lower than 10deg). Assuming an average WD mass of 0.8 solar leads to a mass accretion rate of 1.E-9 Solar mass/year and a distance of the order of 650 pc, consistent with the extremely low galactic reddening in its direction. The spectrum presents some broad and deep silicon and sulfur absorption lines, indicating that these elements are over-abundant by 3 and 20 times solar, respectively

Avaliação do programa Fun FRIENDS com uma amostra de crianças mexicanas

Introduction: Anxiety symptoms in young children can have negative consequences such as the deterioration of family and interpersonal functioning, and may lead to the development of an anxiety disorder; therefore, the importance of prevention. Objective: The aim of this study was to evaluate the effectiveness of the Fun FRIENDS program in the reduction of children’s anxiety symptoms and the promotion of emotional and behavioral competences as a protective factor in a sample of Mexican children. Methodology: The participants included 49 children from the first grade at elementary school along with their teachers. The program was implemented by teachers as twelve consecutive one-week sessions conducted in the classroom. The outcome was measured with a pretest-posttest quasi-experimental design. Measures included the Preschool Anxiety Scale (PAS), for parents, Behavioral and Emotional Rating Scale (BERS-2), for parents, and Strengths and Difficulties Questionnaire (SDQ), for parents and teachers. Results: Findings showed a decrease in the subscale of separation anxiety of the PAS, an increase in the interpersonal, intrapersonal and affective strengths subscales of the BERS-2, and an increase in prosocial behavior as measured by the SDQ. Conclusions: Results indicate promise for the effectiveness of the Fun FRIENDS program as an early intervention program based on the promotion of resilience for Mexican children.Introducción: los síntomas de ansiedad en niños pequeños pueden tener consecuencias negativas como el deterioro del funcionamiento familiar e interpersonal, y puede llevar al desarrollo de un trastorno de ansiedad; por ello, es importante la prevención. Objetivo: evaluar la efectividad del programa Fun FRIENDS en la reducción de los síntomas de la ansiedad de los niños y en la promoción de competencias emocionales y conductuales como un factor de protección en una muestra de niños mexicanos. Metodología: los participantes incluyeron 49 niños de primer grado en una escuela primaria junto a sus maestros. El programa fue implementado por los maestros en sesiones semanales realizadas en el aula durante 12 semanas consecutivas. El resultado se midió con un diseño cuasiexperimental pretest postest. Las medidas incluyeron la Preeschool Anxiety Scale (PAS) para padres, la Behavioral and Emotional Rating Scale (BERS-2) para padres y la Strengths and Difficulties Questionnare (SDQ) para padres y maestros. Resultados: los hallazgos muestran un decremento en la subescala de ansiedad por separación del PAS, un incremento en las subescalas interpersonales, intrapersonales y afectivas del BERS-2, y un incremento en el comportamiento prosocial de acuerdo con el SDQ. Conclusiones: los resultados sugieren el programa Fun FRIENDS promete ser efectivo como un programa de intervención temprana basada en la resiliencia de los niños mexicanos.Introdução: os sintomas de ansiedade em crianças pequenas podem ter consequências negativas, como comprometimento do funcionamento familiar e interpessoal, e podem levar ao desenvolvimento de um transtorno de ansiedade; portanto, a prevenção é importante. Objetivo: avaliar a eficácia do programa Fun FRIENDS na redução dos sintomas de ansiedade em crianças e na promoção de competências emocionais e comportamentais como fator de proteção em uma amostra de crianças mexicanas. Metodologia: Os participantes incluíram 49 alunos da primeira série de uma escola primária, juntamente com seus professores. O programa foi implementado pelos professores em sessões semanais realizadas em sala de aula durante 12 semanas consecutivas. O resultado foi medido com um desenho pós-teste de pré-teste quase experimental. As medidas incluíram a Escala de Ansiedade Pré-escolar (PAS) para os pais, a Escala de Avaliação Comportamental e Emocional (BERS-2) para os pais e o Questionário de Força e Dificuldades (SDQ)para pais e professores. Resultados: os achados mostram uma diminuição na subescala de ansiedade de separação do PAS, um aumento nas subescalas interpessoal, intrapessoal e afetiva do BERS-2 e um aumento no comportamento pró-social de acordo com o SDQ. Conclusões: os resultados sugerem que o programa Fun FRIENDS promete ser eficaz como um programa de intervenção precoce baseado na resiliência de crianças mexicanas

Identification of the soft X-ray source WGA J1802.1+1804 with a new magnetic cataclysmic variable

We have discovered a bright (V~14.5) cataclysmic variable during observations of the soft X-ray sources in the list of Singh et al. The optical source, which is coincident with the X-ray position of WGA J1802.1+1804, shows all the characteristics of a magnetic AM Herculis-type system: circular polarization, He II strength greater than Hβ, multiple line components, and a consistent photometric, polarimetric, spectroscopic, and X-ray period of 113 minutes. The X-ray spectrum shows a dominant soft blackbody (kT=20-45 eV) and a weaker bremsstrahlung component (kT>1 keV), while the circular polarization is relatively low (4% in the red)

The results of a targeted open trial of the Fun FRIENDS combined with a concurrent parent-based intervention

The purpose of this study was to assess an open trial of the Fun FRIENDS program, as an early intervention for referred young children with internalizing symptoms, combined with the simultaneous administration of an adult resilience building program with parents. More specifically, 178 children, ranging in age from 5 to 7, and their parents participated in concurrent intervention programs, as children participated in the Fun FRIENDS program parents participated in the Strong Not Tough: Adult Resilience Program. Based on assessment from pre to post-intervention, significant improvements were found in both child and parent functioning, including reductions in internalizing symptoms and increases in levels of resilience. Also, for mothers, reduction in parent-related stress from pre to post-intervention predicted levels of child anxiety at post-intervention. Overall, the results of this study provide support for the positive impact of Fun FRIENDS enhanced with an adult resilience building program for parents

A Far Ultraviolet Study of the Nova-like V794 Aquilae

We present a spectral analysis of the dereddened FUSE and HST/STIS spectra separately and combined together assuming E(B-V)=0.1 & 0.2. Overall, we find that the model fits are in much better agreement with the dereddened spectra when E(B-V) is large, as excess emission in the longer wavelengths render the slope of the observed spectra almost impossible to fit, unless E(B-V)=0.2 . The best fit accretion disk model is obtained for E(B-V)=0.2 . A single white dwarf model leads to a rather hot temperature (30,000K < Twd < 55,000K depending on the assumptions) but does not provide a fit as good as the accretion disk model. A combination of a white dwarf plus a disk does not lead to a better fit. The same best fit disk model is consistently obtained when fitting the FUSE and HST/STIS spectra individually and when combined together, implying therefore that the disk model is the best fit not only in the least chi2 sense, but also as a consistent solution across a large wavelength span of observation. This is not the case with the single white dwarf model fitting which leads to a different (and therefore inconsistent) temperature for each different spectrum FUSE, STIS and FUSE+STIS