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251.
This study reviews the creation and testing of a model of Therapist Personal Agency during MFT training. A model including self-efficacy, trainee developmental level, supervisor working alliance, family of origin relationships, and psychological states was supported by data collected from a national sample of MFT students. The model supported by the data was consistent with much of the previous research regarding the correlates of therapist self-efficacy. Furthermore, the model accounted for 20% of the variance in therapist performance as measured by therapist reports of the working alliance. The results also highlighted the importance of attending to the relationships, interactions, and experiences that take place within the training environment and secondly, the added value that may accrue from focusing on the trainee's extended network of family relationships. A brief case example serves to illustrate the importance of tending to Therapist Personal Agency. In sum, this study provides preliminary support for holistic training methods that focus upon the whole person of the therapist. 相似文献
252.
The exchangeability and leachability of metals from select green roof growth substrates 总被引:4,自引:0,他引:4
Batch extraction and leaching studies were conducted with potential green roof substrates (e.g., Axis, Arklayte, coal bottom
ash, Haydite, Lassenite, lava rock, and composted pine bark). The results indicated that these materials would not likely
be sources of Cr, Cu, Fe, Ni, or Zn and that Lassenite would be considered a source of Mn if the leachate concentrations were
compared to USEPA drinking water standards for these elements. Lassenite would not be a source of Mn if the data was compared
to a USEPA standard for Mn toxicity to aquatic life. All of the substrates tested leached Cd and/or Pb concentrations that
exceeded the USEPA water quality standards at least once during the 6-month leaching study, so these materials may be potential
sources of Cd and Pb in green roof storm water runoff. The leaching of Cu, Cd, Fe, Mn, Pb, and Zn was differentially influenced
by time and/or the presence of a single Sedum hybridum ‘immergrauch’ plant. The leaching of Cd, Cu, and Pb displayed complex, three-way interactions between main effects (substrate
type and the presence or absence of a plant) and between leaching events. For all substrates except Lassenite, the presence
of a S. hybridum plant decreased the leaching of Pb over time. The leaching of Cd was generally enhanced by plants for most substrates with
time. Collectively the results suggest that changes in the biogeochemical conditions within green roof systems may alter metal
solubility, decreasing the leaching of some elements and increasing the leaching of others. 相似文献
253.
254.
We propose a more efficient version of the slice sampler for Dirichlet process mixture models described by Walker (Commun.
Stat., Simul. Comput. 36:45–54, 2007). This new sampler allows for the fitting of infinite mixture models with a wide-range of prior specifications. To illustrate
this flexibility we consider priors defined through infinite sequences of independent positive random variables. Two applications
are considered: density estimation using mixture models and hazard function estimation. In each case we show how the slice
efficient sampler can be applied to make inference in the models. In the mixture case, two submodels are studied in detail.
The first one assumes that the positive random variables are Gamma distributed and the second assumes that they are inverse-Gaussian
distributed. Both priors have two hyperparameters and we consider their effect on the prior distribution of the number of
occupied clusters in a sample. Extensive computational comparisons with alternative “conditional” simulation techniques for
mixture models using the standard Dirichlet process prior and our new priors are made. The properties of the new priors are
illustrated on a density estimation problem. 相似文献
255.
Pyke S Julious SA Day S O'Kelly M Todd S Matcham J Seldrup J 《Pharmaceutical statistics》2011,10(1):74-79
Concerns about potentially misleading reporting of pharmaceutical industry research have surfaced many times. The potential for duality (and thereby conflict) of interest is only too clear when you consider the sums of money required for the discovery, development and commercialization of new medicines. As the ability of major, mid-size and small pharmaceutical companies to innovate has waned, as evidenced by the seemingly relentless decline in the numbers of new medicines approved by Food and Drug Administration and European Medicines Agency year-on-year, not only has the cost per new approved medicine risen: so too has the public and media concern about the extent to which the pharmaceutical industry is open and honest about the efficacy, safety and quality of the drugs we manufacture and sell. In 2005 an Editorial in Journal of the American Medical Association made clear that, so great was their concern about misleading reporting of industry-sponsored studies, henceforth no article would be published that was not also guaranteed by independent statistical analysis. We examine the precursors to this Editorial, as well as its immediate and lasting effects for statisticians, for the manner in which statistical analysis is carried out, and for the industry more generally. 相似文献
256.
Gay,Lesbian and Heterosexual Adoptive Families: Family Relationships,Child Adjustment and Adopters' Experiences by Laura Mellish,Sarah Jennings,Fiona Tasker,Michael Lamb and Susan Golombok British Association for Adoption & Fostering,London, 2013, 40 pp. £9.95. ISBN 978 190758 565 4
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Stephen Hicks 《Child & Family Social Work》2015,20(1):127-128
257.
We consider equalities between the ordinary least squares estimator ( $\mathrm {OLSE} $ ), the best linear unbiased estimator ( $\mathrm {BLUE} $ ) and the best linear unbiased predictor ( $\mathrm {BLUP} $ ) in the general linear model $\{ \mathbf y , \mathbf X \varvec{\beta }, \mathbf V \}$ extended with the new unobservable future value $ \mathbf y _{*}$ of the response whose expectation is $ \mathbf X _{*}\varvec{\beta }$ . Our aim is to provide some new insight and new proofs for the equalities under consideration. We also collect together various expressions, without rank assumptions, for the $\mathrm {BLUP} $ and provide new results giving upper bounds for the Euclidean norm of the difference between the $\mathrm {BLUP} ( \mathbf y _{*})$ and $\mathrm {BLUE} ( \mathbf X _{*}\varvec{\beta })$ and between the $\mathrm {BLUP} ( \mathbf y _{*})$ and $\mathrm {OLSE} ( \mathbf X _{*}\varvec{\beta })$ . A remark is made on the application to small area estimation. 相似文献
258.
This article uses Probation Department files to reconstruct the lives of five ordinary residents of Harlem. It highlights what that black metropolis offered those outside the political and cultural elite, who have dominated historical scholarship, showing how ordinary blacks negotiated the challenges of life in northern neighborhoods, and drew on institutions and organizations, to establish and sustain new lives. We offer the kind of individualized perspective on everyday life that other scholars have provided for high culture, but which does not exist for other realms of existence in Harlem, even in early twentieth century sociological studies of black life. Where scholars seeking to distinguish the neighborhood from a slum have pointed to the prevailing pride and self-confidence of its residents, this article directs attention to more immediate, concrete supports that sustained and enriched life in Harlem. Relationships with spouses, children, siblings and cousins sustained individuals faced with the social reality of living in overcrowded, deteriorating, disease infested housing, subject to the racism of white police, politicians and employers; so too did friendships made in nightclubs, speakeasies, dances and movie theatres, and membership of churches, fraternal organizations, social clubs, and sports clubs and teams. 相似文献
259.
We show that any point in the convex hull of each of (d+1) sets of (d+1) points in ℝ
d
is contained in at least ⌊(d+2)2/4⌋ simplices with one vertex from each set.
Both authors were supported by NSERC Discovery grants. Additionally, T. Stephen was supported by DFG FG-468 and the Dynamical
Systems research focus at the University of Magdeburg. 相似文献
260.