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Selected AbstractsThe effect of attentional training on body dissatisfaction and dietary restrictionEUROPEAN EATING DISORDERS REVIEW, Issue 3 2009Evelyn Smith Abstract The aim of the present study is to investigate the effect of attentional training towards shape, weight and food related information on body dissatisfaction and dietary restriction. A total of 98 female participants were trained to attend to negative shape/weight words, positive shape/weight words, negative (high calorie) food words, positive (low calorie) food words or neutral words. Subsequently, a body image challenge was presented and participants' body dissatisfaction and dietary restriction were measured. Results indicated that negative shape/weight attentional biases exacerbated body dissatisfaction and a bias towards negative food words intensified dietary restriction. The study provides evidence for specificity in the effects of attentional biases and supports the notion that attentional training may be a useful component in interventions to improve body image and reduce dieting. Copyright © 2009 John Wiley & Sons, Ltd and Eating Disorders Association. [source] Negotiating Russian Federalism: A Simulation for Comparative PoliticsINTERNATIONAL STUDIES PERSPECTIVES, Issue 4 2002Christopher Marsh While the use of simulations in the international relations classroom has proliferated over the past decade, this pedagogical tool has been largely neglected in the comparative politics classroom. Simulations in comparative politics can be a useful component in teaching students about the diversity within foreign countries and the dynamic of domestic policymaking. We describe here an informative and easy,to,run simulation on Russian federalism which can be integrated into courses on Russian politics or easily adapted for use in other courses, especially those focusing on countries in which center,regional relations are an important dimension. The simulation is based on the Russian Federation Council, the upper house of the Russian Federal Assembly, and is a great way to illustrate through experiential learning the quid pro quo of Russian federalism. We provide detailed information on English,language sources that both instructors and students can use during the simulation, along with an Appendix and a Website that provides everything instructors need to run the simulation in their own classes. [source] Weighted Stair Climbing in Mobility-Limited Older People: A Pilot StudyJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 4 2002MD Jonathan Bean MS OBJECTIVES: To evaluate weighted stair climbing exercise (SCE) as a means of increasing lower extremity muscle power in mobility-limited older people. DESIGN: Single-blinded, randomized controlled pilot study INTERVENTIONS: Subjects were randomized into one of two 12-week exercise programs. The intervention group (SCE) (n = 23) ascended and descended stairs, at a set pace, while wearing a weighted vest. The control group (WALK) (n = 22) participated in a standardized walking program. MEASUREMENTS: Primary and secondary outcomes included measures of muscle power and strength, submaximal aerobic capacity, and physical performance. RESULTS: SCE produced 17% improvement in double leg press peak power in comparison with WALK (P = .013) and significant improvement in stair climbing power from baseline (12%). Improvement in submaximal aerobic performance was equivalent for both groups. Although not statistically significant, effect size estimates suggest that SCE can potentially influence knee extension power and strength. Stair climb time was improved in both groups, whereas SCE produced significant improvements from baseline SPPB score in a subcohort of participants. CONCLUSIONS: These findings suggest that SCE may be a useful component of a home exercise program designed to enhance lower extremity muscle power, aerobic capacity, and functional performance. Further investigation is needed involving larger sample sizes and direct comparisons with other forms of resistance training. [source] Formulation and food effects on the oral absorption of a poorly water soluble, highly permeable antiretroviral agentJOURNAL OF PHARMACEUTICAL SCIENCES, Issue 6 2002Bruce J. Aungst Abstract DPC 961 is a low-solubility, high-permeability, second-generation non-nucleoside reverse transcriptase inhibitor. The purpose of these studies was to evaluate the effects of drug substance and formulation variables on DPC 961 oral absorption, and to compare fed and fasted state oral absorption. To accomplish this, groups of four to six dogs were dosed with various formulations of DPC 961 under fasted or fed conditions, and DPC 961 pharmacokinetics were examined. Absolute oral bioavailability, based on i.v. AUC in the same dogs, was 24% after a suspension dose in fasted dogs and was 51% in fed dogs. Bioavailability with an unoptimized tablet formulation was 30% in fasted dogs and 86% in fed dogs. DPC 961 oral absorption was shown to be dependent on drug substance particle size in fasted dogs, after dosing with a tablet formulation where only the drug substance particle size was varied, but there was no difference in fed dogs. AUC and Cmax increased in proportion with increases in tablet strength from 100 to 400 mg, using tablets manufactured from a common granulation. Tablets made with 50 and 66% drug loadings showed similar relative oral bioavailabilities. Tablets prepared with two different polymorphic forms of DPC 961 were also compared, and these were found to be equivalent. These studies provided a useful component of the formulation development process, to help identify and control the variables affecting oral absorption of this potential new therapeutic agent. © 2002 Wiley-Liss, Inc. and the American Pharmaceutical Association J Pharm Sci 91:1390,1395, 2002 [source] Probing cosmology and galaxy cluster structure with the Sunyaev,Zel'dovich decrement versus X-ray temperature scaling relationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Issue 2 2009Cien Shang ABSTRACT Scaling relations among galaxy cluster observables, which will become available in large future samples of galaxy clusters, could be used to constrain not only cluster structure, but also cosmology. We study the utility of this approach, employing a physically motivated parametric model to describe cluster structure and applying it to the expected relation between the Sunyaev,Zel'dovich decrement (S,) and the emission-weighted X-ray temperature (Tew). The slope and normalization of the entropy profile, the concentration of the dark matter potential, the pressure at the virial radius and the level of non-thermal pressure support as well as the mass and redshift dependence of these quantities are described by free parameters. With a suitable choice of fiducial parameter values, the cluster model satisfies several existing observational constraints. We employ a Fisher matrix approach to estimate the joint errors on cosmological and cluster structure parameters from a measurement of S, versus Tew in a future survey. We find that different cosmological parameters affect the scaling relation differently: predominantly through the baryon fraction (,m and ,b), the virial overdensity (w0 and wa for low- z clusters) and the angular diameter distance (w0 and wa for high- z clusters; ,DE and h). We find that the cosmology constraints from the scaling relation are comparable to those expected from the number counts (dN/dz) of the same clusters. The scaling-relation approach is relatively insensitive to selection effects and it offers a valuable consistency check; combining the information from the scaling relation and dN/dz is also useful to break parameter degeneracies and help disentangle cluster physics from cosmology. Our work suggests that scaling relations should be a useful component in extracting cosmological information from large future cluster surveys. [source] Crop traits and the tolerance of wheat and barley to foliar diseaseANNALS OF APPLIED BIOLOGY, Issue 2 2009I.J. Bingham Abstract The relationship between yield loss and disease severity can differ widely between crops. This has given rise to the concept of disease tolerance, with some crops exhibiting a smaller yield loss under a given severity of disease than others. Genetic improvement to minimise yield loss under disease is an attractive goal, as it exerts little or no selection pressure on pathogen populations, and could form a useful component of durable disease management programmes. However, progress towards this end requires a thorough understanding of the phenotypic traits that influence the response of yield to disease, their genetic control and the possible trade-offs involved with other desirable agronomic characteristics. This paper examines the candidate crop traits that may confer tolerance of foliar disease in wheat and barley and reviews evidence of genetic variation in their expression. In wheat grown under the relatively low light conditions of North-West Europe, post-anthesis source (assimilate supply) and grain sink capacity (capacity for dry matter accumulation) appear to be closely balanced. Traits associated with maintaining post-anthesis radiation interception and radiation use efficiency in spite of disease may confer tolerance. The most promising traits include a larger flag leaf and compensatory increases in photosynthetic rate in non-infected parts of leaves. In barley, yield is often more strongly sink limited, and early-season disease management is required to protect the formation of potential grain sites. A wider range of potential traits may influence tolerance including compensatory adjustments in leaf growth and morphology, and differences in the sensitivity of tiller and spikelet mortality to photoassimilate supply. Different methods for quantifying tolerance are suggested depending on the trait of interest. [source] Sequence Encoders Enable Large-Scale Lexical Modeling: Reply to Bowers and Davis (2009)COGNITIVE SCIENCE - A MULTIDISCIPLINARY JOURNAL, Issue 7 2009Daragh E. Sibley Abstract Sibley, Kello, Plaut, and Elman (2008) proposed the sequence encoder as a model that learns fixed-width distributed representations of variable-length sequences. In doing so, the sequence encoder overcomes problems that have restricted models of word reading and recognition to processing only monosyllabic words. Bowers and Davis (2009) recently claimed that the sequence encoder does not actually overcome the relevant problems, and hence it is not a useful component of large-scale word-reading models. In this reply, it is noted that the sequence encoder has facilitated the creation of large-scale word-reading models. The reasons for this success are explained and stand as counterarguments to claims made by Bowers and Davis. [source] Teaching Composition in the College Level Foreign Langua Class: Insights and Activities from Sociocultural TheoryFOREIGN LANGUAGE ANNALS, Issue 3 2001Regina F. Roebuck It is precisely this course, however, that offers learners the opportunity to develop their linguistic and written competencies and the instructor the opportunity to create multiple situations of pedagogical value. This article will draw on several relevant and useful components of sociocultural theory in the organization of a second language composition course and the creation of activities designed to improve students' written skills in the second language [source] Utilisation of corn (Zea mays) bran and corn fiber in the production of food components,JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, Issue 6 2010Devin J Rose Abstract The milling of corn for the production of food constituents results in a number of low-value co-products. Two of the major co-products produced by this operation are corn bran and corn fiber, which currently have low commercial value. This review focuses on current and prospective research surrounding the utilization of corn fiber and corn bran in the production of potentially higher-value food components. Corn bran and corn fiber contain potentially useful components that may be harvested through physical, chemical or enzymatic means for the production of food ingredients or additives, including corn fiber oil, corn fiber gum, cellulosic fiber gels, xylo-oligosaccharides and ferulic acid. Components of corn bran and corn fiber may also be converted to food chemicals such as vanillin and xylitol. Commercialization of processes for the isolation or production of food products from corn bran or corn fiber has been met with numerous technical challenges, therefore further research that improves the production of these components from corn bran or corn fiber is needed. Published 2010 by John Wiley & Sons, Ltd. [source] | ||||||||||||||||