It has been assumed that mathematics testing indicates the development of mathematics concepts, but the linguistic demands of assessment have not been evaluated, especially for children with mild intellectual disabilities. 244 children (grades 2 – 5) were recruited from a larger reading intervention study. Using a multilevel longitudinal SEM model, baseline and post-intervention time points were examined for the contribution of item linguistic complexity, child language skills, and their potential interaction in predicting item level mathematics assessment performance. Item linguistic complexity was an important, stable, and negative predictor of mathematics achievement with children’s language skills significantly and positively predicting mathematics achievement. The interaction between item linguistic complexity and language skills was significant though not stable across time. Following intervention, children with higher language skills performed better on linguistically complex mathematics items. Mathematics achievement may be related to an interaction between children’s language skills and the linguistic demands of the tests themselves.

Granular materials exist in many forms in nature ranging from space debris to sand dunes and from breakfast cereals to pharmaceutical tablets. They can behave like a solid or a viscous fluid or a gas. The gas-like nature of granular materials in rapid flows allows the use of models based on kinetic theory thus revealing in depth complex physics and phenomena. However unlike conventional fluids here the energy balance requires additional dissipation terms as a consequence of inelasticity. The complexity of their interaction and diversity in application has led to numerous studies using experimental methods and numerical simulations in order to determine the most appropriate constitutive relationships for granular gases. With large dissipation the form of the constitutive relationship becomes particularly important, especially in the presence of non-equipartition and anisotropy. This thesis is focused on constitutive models of simple granular flows. A vibrated bed is often used as an idealisation of granular flows, providing a convenient approximation to the simplest type of flow: binary and instantaneous collisions with no rotations. Using finite element method (FE) based COMSOL modules we solve conservation of mass, momentum and energy resulting from granular kinetic theory in axi-symmetric form to generate time and spatial resolved solutions of packing fraction, velocity and granular temperature and compare the predictions to numerical simulation and experiment. At first we show the comparison for two closure sets, one based on a simple near elastic approach while the second based on revised Enskog theory for dense inelastic flows. The results for the second approach show good agreement with the results of previously validated near elastic models and experimental results. The observed differences between the two closure sets are small except for the observation of temperature upturn in a dilute region of the cell away from base. One cause of this is the presence of additional constitutive terms in the balance equations and are a consequence of inelasticity. The models also consider time varying effects at low frequency of excitation. These solutions show existence of wave-like effects in the cell with associated temperature upturn within the hydrodynamic applicability region. Presence of instantaneous cyclic rolling is also seen in both approaches. Evidence from MD simulations and experiments qualitatively support the findings of hydrodynamic models in phase resolved as well as time average behaviour. Subsequently, the frequency of vibration was varied to unlink the wave motion from the bulk temperature. Lack of agreement between experiment and the model predictions are shown to be due to lack of separation of time scale between the grain-base interaction and the base frequency. A sharp decrease of heat flux is measured showing that the energy input is frequency dependent. Analysis of the bulk behaviour shows that at high frequency, hard sphere based models are able to capture the steady state behaviour reasonably well. Further investigations that modulate the driving with a low frequency amplitude change revealed the dynamic nature of flow with the low frequency component. No significant influence of high frequency signal is noted except the reduction of base heat flux. Independent analysis of bulk behaviour for modulated wave excitation using MD simulations and hydrodynamic models showed wave motion in a pattern similar to non-modulated low frequency vibration. A one-dimensional inviscid model was used to determine the underlying scaling relationships for near elastic granular flows. A form of non-dimensionalisation predicts scaling behaviour for the granular flow. The predictions show good results for the dilute flows using hard sphere MD simulations. Results from MD simulations confirm dilute limit scaling of base temperature, packing fractions and heat flux coefficients. At higher inelasticity and loading condition the model fails to capture the real physics suggesting the need for a more accurate model. This simplified model does, however, set the basis for describing the main scalings for vibrofluidized granular beds, and in the future we anticipate that effects of further inelasticity and enhanced density could be incorporated.

Photonic crystals are periodic structures that offers the possibility to control the propagation of light. The revised plane wave method has been implemented in order to compute band structures for photonic crystals. The main advantage of the revised plane wave method is that it can handle lossless dispersive materials. This can not be done with a conventional plane wave method. The computational challenge is comparable to the conventional plane wave method. Band structures have been calculated for a square lattice of cylinders with different parameters. Both dispersive and non-dispersive materials have been studied as well as the influence of a surface roughness. A small surface roughness does not affect the band structure, whereas larger inhomogeneities affect the higher bands by lowering their frequencies.

In this study, we look at the effects of the adoption of the revised IAS 1 rules, which has been in effect since January 1, 2009. The revised IAS 1 requires that all changes in equity, excluding changes in equity arising from transactions with owners, should be recognized in comprehensive income statement. Revised IAS 1 requires companies to report total comprehensive income that is a sum of net income and other comprehensive income. Total comprehensive income includes all unrealized gains and losses recognized under IFRS. Before the amendment, some of the unrealized gains and losses were shown in a statement of changes in equity but not in the income statement. We hope to answer the question whether inclusion of the components of other comprehensive income provides investors with useful information. We investigate if stock prices have an association with the components of other comprehensive income. We investigate how effective are attempts of IASB to increase the relevance of accounting information about corporate income. We hope that results from the study will be of interest to the standard-setter. In this study, we use data from annual reports and year-end reports for companies listed on the Large and Mid Cap segment at NASDAQ OMX Stockholm and that covers the years 2009 to 2011. We use two regression models to test value relevance of components of other comprehensive income.We have found some evidence that the share price statistically relates to such component of comprehensive income as the change of the fair value of cash flow hedges. This can also be interpreted as that the change of the fair value of cash flow hedges has some value relevance. We also found some evidence that the share price significantly associates with winning cash flow hedging position. We did not find that the share price associates with some other components of other comprehensive income.

Problem gambling currently affects between 5-7% of youth ages 12-18 (Hardooon & Derevensky, 2002); however, rates of problem gambling among youth who are involved with the Juvenile Justice System are more than twice that of school sample rates (Lieberman & Cuadrado, 2002). Furthermore, disordered gambling often co-occurs with substance use and criminal activity (Huang & Boyer, 2007), issues that are compounded in the Juvenile Justice population. The current study assessed gambling behaviors and risk factors of 145 youth involved in juvenile, juvenile drug, and family courts. Results indicated that nearly 13% of these youth are currently problem gamblers, and that males and African-Americans had higher problem gambling rates than female and Caucasian youth. Furthermore, gambling-related crime, substance use, scope of gambling activities, and time in detention facilities were all predictive of problem gambling severity, while suicidal ideation, urban environment, and lottery sales per capita were not. Finally, having a parent with a gambling problem also emerged as a risk factor;however, the risk was greater for males than for females. These results present a distinct need for youth to be screened for gambling problems upon entering and exiting the Juvenile Justice System, and for prevention and intervention services to be offered within juvenile and family court settings. Furthermore, communities need to take an active role in preventing youth gambling problems through increasing public awareness and insuring that appropriate and accurate messages reflecting gambling opportunities and outcomes are presented.

The prediction of adolescents' antisocial behavior was central to this investigation. Specifically, use of the Psychopathy Checklist, Revised (PCL) as a predictor of the treatment outcome of a residential unit for juvenile delinquents was evaluated. Toward this goal, three foci guided hypothesis generation and testing. Multiple hypotheses were tested to consider (a) the predictive validity of the PCL, (b) the match between the PCL and Moffitt's (1993b) taxonomy of antisocial behavior and (c) the utility of the PCL as a selection instrument for assignment of juvenile delinquents to behavioral residential unit treatment. Subjects consisted of 80 adolescent, racially-mixed males (28 unit residents, 52 high school students).Predictive validity was evidenced for criteria consisting of future incarceration and future violent and nonviolent criminal offenses committed over the year following PCL administration. Prediction of future incarceration produced results similar to those found with adult prisoners (80% of psychopaths and 21% of nonpsychopaths were incarcerated). Moreover, PCL scores accounted for 26% of the variability in violent offenses and 40% of the variability of nonviolent offenses committed by subjects during the follow-up year.The match between Moffitt's taxonomy of antisocial behavior and the PCL was evidenced by data gathered on those subjects who were known to have engaged in antisocial behavior (N=71). The constructs that Moffitt (1993b) argued would mediate antisocial behavior and are measured with PCL items (such as neuropsychological executive functioning) significantly improved the prediction of future antisocial behavior over that accounted for by Moffitt's taxonomy. In fact, PCL items accounted for more unique variability in future offenses committed than did Moffitt's taxonomy.Utility analyses indicated that the PCL could be used to improve the prevention of success-improbable delinquents from being assigned residential treatment. Dollar value utility analysis indicated that over $5800 per resident could be reallocated to other interventions by assigning success-improbable delinquents to other treatments. Doing so was projected to result in over $175,000 less to be spent on treating unsuccessful residents. It was also argued that utility analysis figures could be to argue for development of alternative programs for delinquents who would probably be unsuccessful in the residential unit program. Residents who presented with internalized psychiatric disorders were not identified using the proposed cutoff score. Therefore, it was recommended that a second test be used to detect delinquents in need of in-patient psychiatric care. / Department of Educational Psychology

Anxiety Sensitivity (AS) consists of beliefs that the experience of anxiety symptoms leads to illness or additional anxiety. The aim of the present study was to examine the factor structure of the Turkish version of Anxiety Sensitivity Index&amp / #8211 / Revised (ASI-R), and to investigate associations among AS, alcohol use and drinking motives in university students and alcohol dependent inpatients. The participants were 411 university students (225 females and 186 males) and 55 (3 females and 52 males) alcohol dependent inpatients. All participants were administered ASI-R, State-Trait Anxiety Inventory-Trait Form, Beck Depression Inventory, Drinking Motives Questionnaire-Revised, and Demographic Information Form. Exploratory factor analyses revealed four lower order factors of the ASI-R: (1) fear of respiratory symptoms / (2) fear of cardiovascular symptoms / (3) fear of cognitive dyscontrol / and (4) fear of publicly observable anxiety symptoms. ANOVA revealed that the frequency and amount of alcohol use were significantly higher in male students than females. Males reported more alcohol use for Coping and Conformity Motives than did females. Regression analyses revealed that only fear of cognitive dyscontrol significantly predicted hazardous alcohol use of students. Coping Motives significantly predicted alcohol use after controlling the effects of demographics, depression and ASI-R lower order factors in students using alcohol. Fear of publicly observable anxiety symptoms significantly predicted frequency of alcohol use in students using alcohol. Students reported using alcohol mostly for Enhancement, Social, Coping, and Conformity Motives, respectively. Students with high AS reported more alcohol use for Coping, Social and Conformity Motives than those with moderate and low AS. Fear of cognitive dyscontrol and fear of publicly observable anxiety symptoms explained a significant variance of drinking motives in students. In alcohol dependent inpatients, only fear of respiratory symptoms had a significant correlation with Coping Motives. Patients reported having used alcohol mostly for Coping, Enhancement, Social, and Conformity Motives, respectively. Coping and Enhancement Motives were significantly correlated with alcohol use. Results were discussed within the findings in the literature.

This thesis explores the potential role of the spiritual senses in contemporary mission. Responding to the development of a new type of non-religious spirituality known as contemporary spirituality, which has emerged in response to cultural change in the West, this thesis enters into a conversation between contemporary spirituality, contemporary Christianity and John Wesley's theme of the spiritual senses. The theme of the spiritual senses has a rich history and this thesis aims to discover if a revisit of Wesley's particular employment of the spiritual senses has the potential to offer a meaningful contribution to Christian mission in the twenty-first century. Using Gordon Lynch's application of Don Browning's revised correlation, seven key motifs within contemporary spirituality are identified as foundational and used to develop the conversation. The thesis proceeds to use these motifs namely, creation spirituality, individualism freedom and choice, innate spiritual perception, the physical senses and spirituality, the sacred within, a call to community, and religious pluralism, to embark on a conversation between contemporary spirituality and contemporary Christianity. In all of the key areas points of convergence are noted, along with some differences, and suggestions are made concerning further engagement. It is argued that, whilst the findings of this conversation, and the practical applications that flow from them, can be used to engage with contemporary spiritual seekers, nevertheless all would benefit from a renewed framework that responds more particularly to the foundational motifs of contemporary spirituality and that Wesley's application of the spiritual senses might offer this framework. Following this, an investigation of Wesley's employment of the spiritual senses, in his own terms, is embarked upon, where his key tenets are discovered. This section confirms the unity between the spiritual senses and the restoration of the life and image of God, moving from complete cognitive unawareness of God or the spiritual world, through prevenient grace to awakening and the new birth including faith, assurance and sanctification. These basic tenets are then developed showing the spiritual senses to be drawn from the creative moment, personal and yet inclusive, accessible, experiential, centered on both healing and forgiveness, based on the value of the individual, freedom, and choice, based on restored, intimate, and ongoing relationship with the creator, facilitating transformation, communal, and working in harmony with reason. Given the similarities to the key motifs of contemporary spirituality, it is affirmed that Wesley's theme of the spiritual senses has potential to make a significant contribution to the conversation between contemporary spirituality and contemporary Christianity. Finally the conversation between all three parties is developed. Here the information gathered in the previous conversation is correlated and synthesised to specifically identify the contribution that the spiritual senses might offer to contemporary mission. Based on the findings of the conversation, a reconstructed gospel message is presented that, it is argued, both correlates with the aspirations of contemporary spirituality and yet is grounded in the Christian tradition, thus affirming the significance of the role of the spiritual senses to contemporary mission.

The purpose of this study was to investigate the effect of the use of an Alternative-Solution Worksheet (ASW) on American ninth-grade students' problem solving performance, and to determine the extent to which instruction in alternative solutions promotes "look back" strategies. "Look back" strategies are based on Polya's (1973) problem solving steps, and they are an examination of what was done or learned previously. The ASW was designed to encourage students to utilize "look back" strategies by generating alternative solutions to the problems. This mixed-methods study was conducted with two existing groups of ninth-grade Algebra I students. An experimental group of 18 students received instruction in utilizing the ASW for two 55-minute class periods a week for a period of four weeks. A comparison group of 14 students did not receive any instruction. Data for this study were collected by pre- and post-testing, ASWs, focus groups, and one student's "think aloud" process. For the quantitative analysis, a one-way ANCOVA was conducted to determine if there was a significant difference in the mean post-test scores between the experimental group and the comparison group. The students' pre-test score was the covariate. The findings indicated that the experimental group scored slightly better on the post-test, and R2=.345, a medium effect size. There were no significant correlations between the ASW scores and the pre- and post-test scores, but the ASW scores were significantly correlated with the students' EXPLORE9 math and reading percentiles. The qualitative findings indicated that "look back" occurred at all six levels of Bloom's Revised Taxonomy, but it is the "look back" that occurs at the upper three levels, in the context of higher order thinking skills, that results in better mathematical problem solving abilities. In addition, positive affective changes were evident despite little improvement in students' mathematical problem solving abilities. The results of this study indicated that higher order thinking skills need to be practiced regularly so students can use them effectively.

This study provides a description and critical analysis of the grammatical structure of isiXhosa as used in the Revised Union Version of the Bible, published in 1942 and republished in 1975. This translation records what was regarded as proper isiXhosa at the beginning of the 20th century, reflecting the consensus inter alia of prominent isiXhosa writers, such as W.B. Rubusana, J.H. Soga, C. Koti, Y. Mbali and D. D. T. Jabavu, who served on the committee that produced the revision. In this study isiXhosa is described in its own right, without approaching it with preconceived ideas derived from other languages. That is to say this is a phenomenological analysis describing the grammatical structures of isiXhosa as they present themselves to the analyst. It is comprehensive, with no structure being overlooked or being described in such a manner that it complicates an understanding of other structures. In the first chapter the context of the research and a brief outline of the historical growth in understanding the structure of isiXhosa are set out and the goals and the method followed in this study are described. In the following chapters the findings of this study are presented. The initial focus is on isiXhosa phonology and the orthography used to put it to writing. Then isiXhosa morphology and syntax is set out. Initially the substantives, i.e. the nouns and pronouns in their distinctive classes and forms, and how they are qualified, receive attention. Then the predicates are explored, i.e. the verbs and copulatives, as linked to the substantives with concords, and reflecting various moods, tenses, actualities and aspects. Finally attention is given to ideophones and interjections and words that can be grouped together as adverbs, conjunctions, avoidance words and numerals. In the concluding chapter consideration is given to the question of whether this study has in fact achieved the aim of setting out a description of the structure of isiXhosa based solely on the language itself, free of preconceived ideas, and attention is drawn to insights gained in respect of the true nature of the isiXhosa grammatical structures, such as, for example, the variable prefix qualificative nouns, traditionally referred to as adjectives. This study is therefore a revisionist study in the sense that it reinvents isiXhosa as a language in its own right, free from Western influenced perspectives.