Investigating the linguistic identity development of dual language learners

The purpose of this research study was to analyze ways in which dual language learners were impacted by their environment (school, home, and community) and explore how these environments impacted their cultural and linguistic identity. Specifically, the goal was to find ways in which educators could better support these students in the classroom to help them achieve academic success, as well as make students feel that their culture is acknowledged and appreciated in the classroom environment. Both of these goals point toward the need to consider the “role identity plays in children’s demonstration and construction of knowledge” (Owocki & Goodman, 2002, p. 19) and what happens when students’ identities are challenged or not celebrated in their family, community and educational setting

Tetravalent Metal Phosphonate-Phosphate Hybrids as Catalyst Supports and Ion Exchange Materials

This work centers on recycling of Rh catalysts and utilizing ion exchange to separate nuclear waste. In the area of Rh-type catalyst supports, non-porous zirconium phosphate nanoplatelets (ZrP) were utilized to provide sufficient outside surface area while still being easily separable from the reaction mixtures. First, a phosphine linker containing an ethoxysilyl group, (EtO)3Si(CH2)3PPh2, is reacted with ZrP. Addition of Wilkinson's catalyst ClRh(PPh3)3 to the phosphine-modified ZrP gives the immobilized catalyst. In the absence of pore diffusion, the catalytic hydrogenation of 1-dodecene using the Rhtype immobilized catalyst proceeds with unprecedented speed and the catalyst can be recovered and recycled 15 times. New materials were synthesized that are comprised of Zr/Sn phosphonate-phosphate hybrids. The general formula for these materials is M(O3PC6H4PO3)1-x/2(APO4)x•nH2O, where M = Zr^4+, Sn^4+; A = H, Na, K; and x = 0, 0.5, 0.8, 1.0, 1.33, 1.6. These materials have a preference for ions of high charge (3+, 4+) over those with lower charge (1+, 2+). From this charge-based affinity and pH modification, separations can be achieved with Nd^3+/Cs^+ separation factors ≥ 100. The stability of these materials to 3.18 MGy gamma radiation was also observed with performance and structure retained. Greater than 99% removal of radioactive Am(III) from solution was obtained. Similar materials have also been utilized to explore rare earth recovery from Compact Fluorescent Lamps and Cr(VI) removal from wastewater solutions

Tetravalent Metal Phosphonate-Phosphate Hybrids as Catalyst Supports and Ion Exchange Materials

This work centers on recycling of Rh catalysts and utilizing ion exchange to separate nuclear waste. In the area of Rh-type catalyst supports, non-porous zirconium phosphate nanoplatelets (ZrP) were utilized to provide sufficient outside surface area while still being easily separable from the reaction mixtures. First, a phosphine linker containing an ethoxysilyl group, (EtO)3Si(CH2)3PPh2, is reacted with ZrP. Addition of Wilkinson's catalyst ClRh(PPh3)3 to the phosphine-modified ZrP gives the immobilized catalyst. In the absence of pore diffusion, the catalytic hydrogenation of 1-dodecene using the Rhtype immobilized catalyst proceeds with unprecedented speed and the catalyst can be recovered and recycled 15 times. New materials were synthesized that are comprised of Zr/Sn phosphonate-phosphate hybrids. The general formula for these materials is M(O3PC6H4PO3)1-x/2(APO4)x•nH2O, where M = Zr^4+, Sn^4+; A = H, Na, K; and x = 0, 0.5, 0.8, 1.0, 1.33, 1.6. These materials have a preference for ions of high charge (3+, 4+) over those with lower charge (1+, 2+). From this charge-based affinity and pH modification, separations can be achieved with Nd^3+/Cs^+ separation factors ≥ 100. The stability of these materials to 3.18 MGy gamma radiation was also observed with performance and structure retained. Greater than 99% removal of radioactive Am(III) from solution was obtained. Similar materials have also been utilized to explore rare earth recovery from Compact Fluorescent Lamps and Cr(VI) removal from wastewater solutions

Factors affecting movement patterns of mule deer (Odocoileus hemionus) in southern Saskatchewan : implications for chronic wasting disease spread

Chronic wasting disease (CWD) has been a known threat to Saskatchewan’s wild cervid populations for more than a decade. As host movements can affect the spread of a disease across the landscape, disease models and management strategies should incorporate information regarding movement patterns of the host population in question. I used radio telemetry to study mule deer (Odocoileus hemionus) captured between 2006 and 2008 in a CWD-endemic region of southern Saskatchewan. Using location data from 152 individuals, I investigated home range size and patterns of direct and indirect contact (measured using proximity and shared space use) in relation to sex, habitat, and landscape structure. Home ranges (95% fixed kernel) of GPS-collared deer in this study averaged 21.4 km² (n = 94). Male home ranges (mean = 29.5 km², n = 56) were larger than those of females (mean = 16.1 km², n = 38), which could have implications for CWD prevalence differences between sexes. Of the landscape variables tested, topographic ruggedness was inversely related to home range size and Shannon’s diversity (a measure of both habitat richness and evenness) was positively related to home range size. Potential direct contact events were identified when two deer were located within 25 m of each other at the same point in time. These events occurred more often between February and April, agreeing with the tendency of mule deer to aggregate into large groups during the late winter months, and suggesting that this may be an important time period for disease transmission. Contact also occurred more than expected in cropland, whereas areas of shared use occurred more than expected in grassland, shrub/wood habitat, and rugged terrain. Smaller home ranges and greater degree of shared space use within areas of rough topography may lead to greater risk of environmental contamination with the infectious CWD agent in these areas. In contrast, the relationship between cropland and probability of direct contact may imply greater risk of direct CWD transmission between deer occupying this habitat. These results identify connections between particular landscape factors and risk of CWD transmission and will be used, in combination with results of related studies, to develop a model of CWD spread in Saskatchewan. This will in turn aid management agencies in developing methods to more effectively manage the disease and control its movement outside of affected regions

Close the Deal and Deliver the System: Sales Training for IS Developers

The communication gap between IS developers and end users poses a key problem in IS development efforts. While a variety of tactics have been suggested to bring developers and users together to enhance communication and create a positive impact on system development efforts, the gap still remains. This paper proposes the implementation of an IS developer training program based on the fundamental principles of sales and sales training programs. The sales model is compared to models of change which closely represent the IS implementation process. Parallels are drawn between the roles of the IS developer and the sales agent, and the roles of the user and the sales customer. The sales training program is adapted to the environment of the IS developer, and recommendations are offered for the implementation of the program. Potential impacts of the training program for IS development efforts are also discussed

Interfirm Collaboration in Global Production Networks – Maturity Model for Managing Interfirm Relationships

Today, data-sharing along global supply chains and outsourcing to international vendors are ubiquitous trends in global production. Both trends are a form of so-called interfirm collaboration. Previously, research focused on specified tools to gain advantages from interfirm collaboration. However, possible risks and structural obstacles hamper partners to engage in collaborative relationships. In this paper, a framework is presented to monitor the maturity of a firm’s interfirm relationships. Thus, key factors and distinct dimensions are proposed that determine success in interfirm collaboration. The concluding framework visualizes interfirm relationships and creates transparency between collaborating stakeholders