This review examines the effectiveness of digital media on emergent literacy skills, specifically alphabet knowledge, print awareness, and phonological awareness, on children birth to four. A systematic search of the literature identified 13 studies that met the pre-determined inclusion criteria. Two independent raters evaluated each study for methodological quality and assigned appropriate levels of evidence based on ASHA levels of evidence. Results found that specific features of digital media can lead to positive effects on emergent literacy skills. A checklist with the highlighted features was created to guide clinicians, parents, and others in making decisions about the true educational quality of various screen media.

Chaos theory holds that systems act in unpredictable nonlinear ways and that their behavior can only be observed, never predicted. This is an informative model for an organization in crisis. The West Virginia water contamination crisis, which began on January 9, 2014, fits the criteria of a system in chaos. Given the lack of appropriate response from the established organizations involved, many emergent organizations formed to help fill unmet informational and physical needs of the affected population. Crisis researchers have observed these ephemeral organizations for decades, but the recent proliferation of information communication technologies (ICT’s) have made their activities more widespread and observable. In West Virginia, their activities were indispensable to the affected population and helped restore a sense of normalcy. In this chaotic system, the emergent organizations functioned as strange attractors, helping move the system away from bifurcation and towards normalcy. This dissertation uses a qualitative approach to study the emergent organizations and how their presence and efforts were the mechanism that spurred the self-organization process.

The purpose of this study is to identify factors in the home literacy environment using the Stony Brook Family Reading Survey (SBFRS) in order to understand the extent to which these factors predict phonemic awareness and other basic reading skills, as assessed by selected subtests from the Woodcock-Johnson III (WJ III). The present study used archival data to examine the home literacy habits of a sample of parents and preschool children ages 3-5 years (range in months= 36-67) from a private and a public preschool with a combination of high- and low-income backgrounds and various ethnicities. Using exploratory factor analyses with 165 participants, three dimensions of family reading behavior were identified from the SBFRS including Home Reading Emphasis, Adult Responsibility, and Parental Academic Expectations. Each of the SBFRS rotated factors considered together in a stepwise multiple regression analysis contributed significantly over and above age to the prediction of phonological awareness as measured by the Phonemic Awareness 3 (PA3) Cluster from the WJ III. The best order of predictors for PA3 of the WJ III, with stepwise entry, included Factor 1: Home Reading Emphasis, Factor 3: Parental Academic Expectations, and Factor 2: Adult Responsibility. One of the SBFRS rotated factors, Factor 1: Home Reading Emphasis, considered in a stepwise multiple regression analysis using age as a covariate contributed significantly to the prediction of basic reading as measured by the Basic Reading Skills (BRS) Cluster of the WJ III [WJ III BRS=.38+.26(Factor1)]. Results demonstrate the importance of the aforementioned factors in relation to the prediction of emergent literacy. Future studies are needed to investigate parental expectations, adult responsibility for child outcomes, the impact of fathers, and the importance of dominant home language on the emergence of literacy. Revision of the SBFRS, in addition to studies that include a wider range of SES, racial/ethnic, and linguistic groups, would help to standardize the measure for future use.

Appropriate and defensible statistical frameworks are required in order to make credible inferences about future climate based on projections derived from multiple climate models. It is shown that a two-way analysis of variance framework can be used to estimate the response of the actual climate, if all the climate models in an ensemble simulate the same response. The maximum likelihood estimate of the expected response provides a set of weights for combining projections from multiple climate models. Statistical F tests are used to show that the differences between the climate response of the North Atlantic storm track simulated by a large ensemble of climate models cannot be distinguished from internal variability. When climate models simulate different responses, the differences between the re- sponses represent an additional source of uncertainty. Projections simulated by climate models that share common components cannot be considered independent. Ensemble thinning is advocated in order to obtain a subset of climate models whose outputs are judged to be exchangeable and can be modelled as a random sample. It is shown that the agreement between models on the climate response in the North Atlantic storm track is overestimated due to model dependence. Correlations between the climate responses and historical climates simulated by cli- mate models can be used to constrain projections of future climate. It is shown that the estimate of any such emergent relationship will be biased, if internal variability is large compared to the model uncertainty about the historical climate. A Bayesian hierarchical framework is proposed that is able to separate model uncertainty from internal variability, and to estimate emergent constraints without bias. Conditional cross-validation is used to show that an apparent emergent relationship in the North Atlantic storm track is not robust. The uncertain relationship between an ensemble of climate models and the actual climate can be represented by a random discrepancy. It is shown that identical inferences are obtained whether the climate models are treated as predictors for the actual climate or vice versa, provided that the discrepancy is assumed to be sym- metric. Emergent relationships are reinterpreted as constraints on the discrepancy between the expected response of the ensemble and the actual climate response, onditional on observations of the recent climate. A simple method is proposed for estimating observation uncertainty from reanalysis data. It is estimated that natural variability accounts for 30-45% of the spread in projections of the climate response in the North Atlantic storm track.

Title: Preschool – a social language environment and an arena for emergent literacy processes. Author: Martina Norling By focusing on preschool, as an arena for emergent literacy and language learning processes, this thesis put the lens on preschool staff´s approaches and strategies in the social language environment in Swedish preschools. Taking its point of departure in real preschool settings, the overall purpose of this thesis is to develop a greater understanding of this social language environment, with particular emphasis on the quality dimensions of strategies, such as the preschool staff´s sensitivity and approaches in the preschool environment. Two didactic issues are of special importance to the thesis: preschool staff´s descriptions of what kind of strategies and approaches they use in the social language environment as well as how preschool staff support children’s language learning processes in literacy-related activities. The thesis consists of four articles aimed at capturing, variations of dimensions of preschool staff strategies as well as approaches that contribute to highlighting essential strategies for supporting children in the social language environment. The theoretical framework in this thesis consists of social constructivism (Vygotsky, 1997) and bioecological theory (Bronfenbrenner, 2005). The four empirical studies in this thesis have made possible a mixed method design. The data production consists of questionnaires with questions regarding background information of the participants, observation instruments (scoring the quality of the social language environment), focus group interviews, video observations as well as a systematic literature review. In this thesis, three dimensions of preschool staff strategies in social language environment emerged: play strategies, emotional strategies and communicative strategies. The social language environment in Swedish preschool can be described in terms of those three strategy dimensions and continuous interplay processes among children, peers and preschool staff, over time. The quality dimensions of strategies focus, on preschool staff efforts and children’s prerequisites of learning processes, rather than focusing on children’s individual performance. Keywords: Preschool, social constructivism, bioecological theory, preschool staff, emergent literacy, social language environment, language learning processes

The acquisition of emergent literacy skills has become a prominent focus of early childhood education programs in recent years as research has demonstrated the significance of emergent literacy ability in the process of learning to read. The effectiveness of use of varied instructional techniques targeting the emergent literacy domains of phonological awareness, written language awareness, emergent writing, and oral language is well described in the literature. Consequently, educational service providers like speech-language pathologists are being called upon to assume roles in emergent literacy service provision. However, research has not fully explored the perceptions and knowledge speech-language pathologists possess of emergent literacy instructional practices. This concurrent triangulation mixed methods study examined speech-language pathologists’ perceptions and knowledge of emergent literacy instructional practices. Three quantitative and two qualitative forms of data were collected and analyzed from a criterion and purposive sample of five educational speech-language pathologists. Findings revealed speech-language pathologists possessed positive perceptions of emergent literacy instruction and endorsed use of numerous instructional techniques and intervention formats to target multiple emergent literacy skills. Results also indicated the presence of a narrow view of emergent literacy instruction as participants maintained a primary focus on oral language and phonological awareness in intervention sessions. Additionally, varied perspectives of speech-language pathologists’ role in emergent literacy instruction and numerous constraints to implementation of best practice in emergent literacy were identified. Findings demonstrated strength in participants’ pedagogical knowledge of emergent literacy instructional techniques in oral language and phonological awareness and strength in content knowledge of phonological awareness. However, findings also revealed limitations in understanding as speech-language pathologists’ did not demonstrate thorough knowledge of instructional practices across all domains of emergent literacy. Additionally, varying degrees of emergent literacy knowledge among speech-language pathologists were noted. Finally, comparison of quantitative and qualitative results of speech-language pathologists’ emergent literacy perceptions and knowledge revealed convergence of numerous findings.

The Cienega de Santa Clara is a 5600 ha, anthropogenic wetland in the delta of the Colorado River in Mexico. It is the inadvertent creation of the disposal of brackish agricultural waste water from the U.S. into the intertidal zone of the river delta in Mexico, but has become an internationally important wetland for resident and migratory water birds. The marsh is dominated by Typha domengensis with Phragmites australis as a sub-dominant species in shallower marsh areas. The most important factor controlling vegetation density was fire. The second significant (P<0.01) factor controlling NDVI was flow rate of agricultural drain water from the U.S. into the marsh. Reduced summer flows in 2001 due to canal repairs, and in 2010 during the YDP test run, produced the two lowest NDVI values of the time series from 2000 to 2011 (P<0.05). Salinity is a further determinant of vegetation dynamics as determined by greenhouse experiments, but was nearly constant over the period 2000 to 2011, so it was not a significant variable in regression analyses. Evapotranspiration (ET) and other water balance components were measured in Cienega de Santa Clara; we used a remote sensing algorithm to estimate ET from meteorological data and Enhanced Vegetation Index values from the Moderate Resolution Imaging Spectrometer (MODIS) sensors on the Terra satellite. We used Landsat NDVI imagery from 1978-2011 to determine the area and intensity of vegetation and to estimate evapotranspiration (ET) to construct a water balance. Remote sensing data was supplemented with hydrological data, site surveys and literature citations. The vegetated area increased from 1978 to 1995 and has been constant at about 4200 ha since then. The dominant vegetation type is Typha domingensis (southern cattail), and peak summer NDVI since 1995 has been stable at 0.379 (SD = 0.016), about half of NDVI(max). About 30% of the inflow water is consumed in ET, with the remainder exiting the Cienega as outflow water, mainly during winter months when T. domingensis is dormant.

Many organisations use strategic management as an imperative to gain competitive advantages. Theorists have not been able to ascertain whether prescriptive or emergent strategic approaches will be most suitable within an organisational climate for sustaining these competitive advantages. The notion of creativity has been identified as a source of competitive advantage that organisations may make use of within their strategic frameworks. However, within the organisational climate, there may be various barriers to creativity that will impede performance outcomes, efficiency and potential competitive advantage for an organisation. The study concerns itself m d y with an investigation into the strategic and organisational climates within selected higher education institutions in South Africa, as these institutions are in need of an assessment regarding potential sources of competitive advantage, in order to survive. The imperative to remain competitive is primarily due to the turbulent and changeable environments that these institutions find themselves in. This instability has occurred as a result of various changes in higher education due to the merging of several higher education institutions and the changes in the configuration of others. The study has shown that creativity is a source of competitive advantage. This was done by determining which barriers to creativity were present within the organisational climates of the selected institutions, as well as which strategic management approaches were being employed by the said institutions. The information obtained from the data gathered was compared to two competitive advantage measures (throughput and research output rates) of those higher education institutions. Three pivotal questions were asked and answered by the study in this regard. What are the prevalent prescriptive strategy dimensions and processes being employed by selected South African public higher education institutions? What are the prevalent creativity barrier dimensions that exist with selected public higher education institutions in South Africa? What relationships can be observed between the prescriptive strategy dimensions, the creativity barrier dimensions and the organisational competitive advantage performance output dimensions of throughput rate and research output in selected public South African higher education institutions? Non probability, judgment sample was obtained from four selected higher education institutions located in the Gauteng province in South Africa during the latter half of 2004. The survey requested certain biographical information on respondents (who had to fulfill the criteria of being full-time academic employees working for the institution in question), information on the strategic climate and barriers to creativity with the organisational climate. The last section of the questionnaire contained open-ended questions. Data on the throughput and research output rates of the institutions was obtained separately from the South African Department of Education (DOE), and correlated against the data obtained from the questionnaire. The questionnaire was testing for eight pre-determined creativity factors within the organisational climate (identified from the literature review and previous studies), and a separate dimension of prescriptive strategic planning. Overall only five of the creativity barriers were found to be most predominant within the selected higher education institutions, namely: Insufficient Resources; Lack of Team Unity; Lack of Organisational Support; Organisational Hindrances and Workload pressure. The factors were compared to the measures of competitive advantage and it was determined that there was a positive correlation between a higher prevalence of barriers and a lower performance output, which indicated that creativity could be identified as a source of competitive advantage within those institutions. This lent evidence to support the initial, first hypothesis of the study. Furthermore, it was discovered that those institutions that were utilising prescriptive strategic management approaches were more inched to achieve higher performance in terms of their throughput rates. Refuted the second hypothesis of the study that was advocating that emergent strategy was more likely to result in competitive advantage. More education institutions, known for their typically bureaucratic approaches might be more able to utilise formal procedures to obtain increased competitive advantage than utilising a more informal, emergent approach, as academic employees might more freely be able to explore creative alternatives under the security of prescriptive strategic approaches. It is likely that any organisation would wish to improve their competitive performance in order to be more effective. Higher education institutions also need to be concerned about their performance in order to continue operating effectively. It is necessary, then for those higher education institutions, to take note of these potential barriers to creativity with their organisational climates, which were highlighted by the study and to proactively remove them to ensure they remain competitive into the future. In addition, these institutions should consider which strategic management approaches they are currently utilising and streamline them to cement the competitive advantage. It was advocated that South African higher education institutions should be adopting formalised strategic management approaches in this regard. / Thesis (Ph.D. (Business Management))--North-West University, Vaal Triangle Campus, 2005.

This study investigates the complex flow structure generated by riparian emergent vegetation along the edge of floodplain. Detailed velocity and boundary shear stress measurements were carried out for various arrangements of emergent rigid cylindric rods of 3 mm, 6 mm and 9 mm diameters and for three different rod densities. In addition, the impact of foliage on the flow field was assessed during a series of experiments where brushes were used instead of smooth rods. The results of these new experiments are first presented. In addition to the laboratory data, field data was obtained through Acoustic Doppler Current Profiler measurements for two flood events in a stretch of the river Rhône that can be approximated to a straight compound channel with vegetated banks. The analysis of the flow structure highlights the presence of strong secondary circulation and increased vorticity on the river banks. The rods on the edge of the floodplain increase significantly flow resistance, reducing velocity and decreasing boundary shear stress. Flow rate was seen to decrease with increasing vegetative density for all cases except when foliage was added. This suggests that an optimum threshold density, for which a smaller density would lead to an increased flow rate might exist. Wakes trailing downstream of the vegetation stem, planform coherent structures advected between the main channel and the floodplain, and eddying motion in the flow due to enhanced turbulence anisotropy are among the defining patterns observed in the studied compound channel flows with one line of emergent vegetation along the edge of the floodplain. The Shiono and Knight Method (SKM) was modified in order to account for the increased turbulence activity due to the rods. The drag force term was introduced in the same way as in the work of Rameshwaran and Shiono (2007). However, a new term was added to the transverse shear stress term in the form of an Elder formulation, incorporating a friction drag coefficient which can be derived from the experimental data. In this proposed version, the advection term was set to zero. Another version of the SKM, similar to Rameshwaran and Shiono (2007), was also tested with the addition of a local drag friction only applied in the rod region. The proposed SKM version without the advection term was favored as it can be more closely related to the experimental data and to physical processes. Finally, the capabilities of Telemac-2D were tested against the experimental data for various turbulence models. The Large Eddy Simulation turbulence model highlighted some unsteady flow patterns that were observed during experiments, while satisfactorily predicting the lateral velocity and boundary shear stress distributions.

The study proposed an evidence-based framework for designing and evaluating organisational learning and knowledge management processes to support continuously improving intentions of organisations such as hospitals. It demarcates the extant approaches to organisational learning including supporting technology into ‘rationalist’ and ‘emergent’ schools which utilise the dichotomy between the traditional healthcare managers’ roles and clinicians’ roles, and maintains that they are exclusively inadequate to accomplish transformative growth intentions, such as continuously improving patient care. The possibility of balancing the two schools for effective organisational learning design is not straightforward, and fails; because the balanced-view school is theoretically orientated and lack practical design to resolve power tensions entrenched in organisational structures. Prior attempts to address the organisational learning and knowledge management design and evaluation problematics in actuality have situated in the interpretivist traditions, only focusing on explanations of meanings. Critically, this is uncritical of power relations and orthodox practices. The theory of deferred action is applied in the context of critical research methods and methodology to expose the motivations behind the established organisational learning and knowledge management practices of Komfo Anokye Teaching Hospital (KATH) which assumed rationality design conceptions. Ethnographic data was obtained and interpreted with combined critical hermeneutics and narrative analyses to question the extent of healthcare learning and knowledge management systems failures and unveil the unheard voices as force for change. The study makes many contributions to knowledge but the key ones are: (i) Practically, the participants accepted the study as a catalyst for (re)-designing healthcare learning and knowledge management systems to typify the acceptance of the theory of deferred action in practice; (ii) theoretically, the cohered emergent transformation (CET) model was developed from the theory of deferred action and validated with empirical data to explain how to plan strategically to achieve transformative growth objectives; and (iii) methodologically, the sense-making of the ethnographic data was explored with the combined critical hermeneutics and critical narrative analyses, the data interpretation lens from the critical theory and qualitative pluralism positions, to elucidate how the unheard emergent voices could bring change to the existing KATH learning and knowledge management processes for improved patient care.