Group therapy for adult women survivors of child sexual abuse: Differentiation of completers versus dropouts.

Examined intake profiles of 54 depressed women survivors of child sexual abuse presenting for a specialized group therapy program at a community mental health center. The 32 therapy completers were compared with the 22 dropouts. Both groups possessed extensive and severe childhood and adult abuse histories. Both were extremely socially disadvantaged and clinically impaired as measured on the Millon Clinical Multiaxial Inventory (MCMI). Dropouts were more likely to have been battered as children and to have been sexually abused only within the family. Completers were more likely to have been multiply offended both by intrafamilial and extrafamilial perpetrators. The groups differed in terms of marital status and extent of economic dependence on spouse. Dropouts appeared to be more actively enmeshed in the abuse cycle at the time of therapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Elaborative interrogation effects on children's learning of factual content.

In 2 experiments children in Grades 4–8 learned facts under different instructional conditions. Control Ss were given base sentences containing facts and were permitted to study them as they wished. In some conditions fact sentences were accompanied by elaborations (e.g., an explanation of why a stated animal lived in a stated locale). Ss in the elaborative interrogation conditions attempted to construct their own reasons for why the facts held true. Ss in the imagery conditions constructed internal imaginal representations for each fact (e.g., an image of a stated animal living in the stated locale). Elaborative interrogation was the only condition that significantly facilitated acquisition of facts in both experiments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of teaching statistical laws on reasoning about everyday problems.

A long-standing belief is that statistical rules helpful in solving practical problems do not transfer beyond the subject matter domain in which they were learned. Recent research by G. T. Fong, D. H. Krantz, and R. E. Nisbett (see record 1986-29079-001) challenges this belief. Fong et al. showed that instructing learners about abstract rules, such as the law of large numbers, improved reasoning about ill-defined problems and transferred to solving everyday statistical problems that involved probabilistic relations. Fong et al.'s research is extended in 3 experiments with 276 university, secondary, and middle school students. The law-of-large-numbers heuristic was taught in regular classroom settings and students' abilities to solve ill-structured everyday problems were tested. Students learned a good deal about how to reason statistically, and these gains generalized over different structures of problems and topics. The results support a revival of formalist views of transfer, that teaching formal rules about inference making can improve reasoning and support transfer. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Relations Among the Structure of Learning Tasks, Achievement, and Changes in Self-Efficacy in Secondary Students.

Although much has been discovered about relations between self-efficacy and academic achievement, questions remain about links between achievement, the structure of learning tasks, and changes in students' self-efficacy as students engage with a single, complex authentic task. Students' self-efficacy for learning (SEL) and for performance (SEP) was tracked as they worked on well- and ill-structured tasks during their regular class. Students reported higher SEL and SEP for a well-structured task. Moderate achievers reported significantly more difficulty with the ill-structured task. SEP was higher and more stable than SEL, especially in early phases of both tasks. After accounting for overall academic achievement, self-efficacy was a negligible predictor of achievement. Students may perceive various features of each task's structure as difficult. Implications concerning relations among self-efficacy, task structure, and achievement are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differences need not be deficits: A response to criticisms on a reanalysis relating self-concept and participation.

The authors' (1980) reanalysis of Y. S. Yarworth and W. J. Gauthier's (see record 1979-22269-001) data relating students' participation to status and self-concept variables was viewed by Gauthier and Yarworth (1980) as misconceptualized and methodologically errorful. Walsh and Winne argue here that the different approaches to regression analysis taken in Yarworth and Gauthier's original analysis of the data and in their (Walsh and Winne's) (1980) reanalysis of it should not be judged right or wrong but that the theory underlying the choice of analysis is the object of scrutiny. (4 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Influence of composition of MgAl2O4 supported NiCeO2ZrO2 catalysts on coke formation and catalyst stability for dry reforming of methane

Dry reforming of methane was studied over Ni catalysts supported on γAl₂O₃, CeO₂, ZrO₂ and MgAl₂O₄ (670 °C, 1.5 bar, 16–20 l CH₄ ml_catalyst⁻¹ h⁻¹). It is shown that MgAl₂O₄ supported Ni catalysts promoted with both CeO₂ and ZrO₂ are promising catalysts for dry reforming of methane with carbon dioxide. Within a certain composition range, the simultaneous promotion with CeO₂ and ZrO₂ has great influence on the amount of coke and the catalyst service time. XRD analyses indicate that formation of crystalline Ce_xZr_1−xO₂ mixed oxide phases occurs on double promotion. In particular, incorporation of low amounts of Zr in the CeO₂ fluorite structure provides stable dry reforming catalysis. As shown with TPR, promotion leads to a higher reduced state of Ni. SEM, XRD and TPR analyses demonstrate that highly dispersed, doubly promoted Ni catalysts with a strong metal-support interaction are essential for stable dry reforming and suppression of the formation of carbon filaments.     

The mammalian homolog of suppressor-of-white-apricot regulates alternative mRNA splicing of CD45 exon 4 and fibronectin IIICS

We have previously described human (HsSWAP) and mouse (MmSWAP) homologs to the Drosophila alternative splicing regulator suppressor-of-white-apricot (su(wa) or DmSWAP). DmSWAP was formally defined as an alternative splicing regulator by studies showing that it autoregulates splicing of its own pre-mRNA. We report here that mammalian SWAP regulates its own splicing, and also the splicing of fibronectin and CD45. Using an in vivo system of cell transfection, mammalian SWAP regulated 5' splice site selection in splicing of its own second intron. SWAP enhanced splicing to the distal 5' splice site, whereas the SR protein ASF/SF2 enhanced splicing to the proximal site. SWAP also regulated alternative splicing of the fibronectin IIICS region by promoting exclusion of the entire IIICS region. In contrast, ASF/SF2 stimulated inclusion of the entire IIICS region. Finally, SWAP regulated splicing of CD45 exon 4, promoting exclusion of this exon, an effect also seen with ASF/SF2. Experiments using SWAP deletion mutants showed that splicing regulation of the fibronectin IIICS region and CD45 exon 4 requires a region including a carboxyl-terminal arginine/serine (R/S)-rich motif. Since R/S motifs of various splicing proteins have been shown to interact with each other, these results suggest that the R/S motif in SWAP may regulate splicing, at least in part, through interactions with other R/S containing splicing factors.     

Sensitive assay for midazolam and its metabolite 1'-hydroxymidazolam in human plasma by capillary high-performance liquid chromatography

A sensitive high-performance liquid chromatographic method is described for the quantification of midazolam and 1'-hydroxymidazolam in human plasma. Sample (1 ml plasma) preparation involved a simple solvent extraction step with a recovery of approximately 90% for both compounds. An aliquot of the dissolved residue was injected onto a 3 microm capillary C18 column (150 mm x 0.8 mm I.D.). A gradient elution was used. The initial mobile phase composition (phosphate buffer-acetonitrile, 65:35) was maintained during 16 min and was then changed linearly during a 1-min period to phosphate buffer-acetonitrile, 40:60. The flow-rate of the mobile phase was 16 microl/min and the eluate was monitored by UV detection. The limits of quantification for midazolam and 1'-hydroxymidazolam were 1 ng/ml and 0.5 ng/ml, respectively. The applicability of the method was demonstrated by studying the pharmacokinetics of midazolam, and its major metabolite 1'-hydroxymidazolam, in human volunteers following i.v. bolus administration of a subtherapeutic midazolam dose (40 microg/kg).     

Meat quality, fatty acid composition and flavour analysis in Belgian retail beef

The objective of this study was to evaluate the differences in biochemical, sensorial and quality characteristics of retail beef in Belgium. Four types of beef (Belgian Blue double-muscled, Limousin, Irish and Argentine) and two different muscles (longissimus lumborum and semimembranosus) were bought at the retail level and compared with regard to colour, shear force, collagen content, fatty acid analysis, taste panel evaluation as well as flavour analysis. Belgian Blue and Limousin beef had a paler colour, lower collagen and intramuscular fat contents. Fatty acid profiles were significantly different between the four types, with significantly higher PUFA/SFA and n-6/n-3 ratios for Belgiam Blue and Limousin beef compared to Argentine and Irish beef. There were significant differences between the meat types for taste panel tenderness and shear force, however both measurements did not fully correspond. Flavour analysis by gas chromatography–mass spectrometry as well as sensory analysis demonstrated that Irish and Argentine beef had a higher flavour intensity related to higher contents of volatile compounds. Differences in tenderness and flavour between the meat types were probably affected by differences in ageing time, related to import vs local production of meat.     

The efficiency of implicit repetition and cognitive restructuring.

72 undergraduates experienced 1 of 4 repetition treatments for 1 of 3 amounts of information presented in categorized word lists. Implicitly repeating categories by presenting words not present in the original categorized list but logically members of previously studied categories significantly increased acquisition and retention relative to repeating category labels, repeating members of categories, and repeating neither labels nor members. Data on the efficiency of repetition treatments are also presented. An association-restructuring hypothesis is proposed as a cognitive mechanism enhancing learning under repetition. A hypothesis relating structural features of presented information to the availability of cognitive processes for learning under various repetition conditions is also discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)