abstract: The purpose of this study was to explore features of Supplemental Educational Services (SES) implementation at the district level. In the study beliefs, goals, and actions of district office administrators were analyzed against the backdrop of changing federal guidelines and challenges faced by SES implementers across Arizona. The case study focuses on implementation in the 2007-2008, 2008-2009, and 2009-2010 school years. The study uses the 2005 and 2009 Department of Education guidelines, survey responses from Arizona district and school implementers, as well as documents and interviews from an urban Arizona case district. The study separates the implementation activities into task areas, which are analyzed separately. Using a loose coupling perspective, the separate task areas are furthered used as coupling domains and represented in social network graphs. Results show that the case district personnel were highly focused on their primary role, maintaining district compliance with federal guidelines. The district personnel employed several changes over the case study period to centralize their control of SES operations within district. The employment and training of site level coordinators was the most impactful of the strategies. As boundary spanners, the coordinators allowed greater access to information, oversight, and influence at the site level. Despite the growing capacity and earnest efforts of the district personnel, the case district was still very far from being able to measure or assess the impact of SES on student achievement. Centralization in the scholastic task areas was relatively low, and had marginal changes over the case study period. Years into the program, there was still no avenue to accurately gauge the effectiveness. As the district personnel were chiefly concerned with compliance, they had suspended judgment on the program and focused primarily on improving their processes. / Dissertation/Thesis / Ph.D. Educational Leadership and Policy Studies 2011

In this thesis we study radiative decays of the exotic meson X(3872) into $J/ \\psi \\gamma$ and $\\psi(2S) \\gamma$ using an effective field theory framework. Assuming the exotic meson to be primarily a molecular state of the mesons $D$ and $ \\bar{D}^{*}$, we perform a renormalization analysis to estimate the contribution of the short-distance physics. This is done using two different prescriptions, the popular $\\overline{MS}$ scheme, valid only for perturbative calculations, and the PDS scheme, used in EFTs for loosely-bound systems and intrinsically non-perturbative. We show that, without a short-distance contact interaction, the observables become very dependent on the regularization scale, therefore demanding proper renormalization. We include two short-distance contact terms, one for each decay channel, and impose the renormalization condition within both $\\overline{MS}$ and PDS schemes. We obtain the behavior of the contact term with the renormalization scale $\\mu$, which can be useful in guiding models for the short-distance part. We note, however, distinct behaviors between $\\overline{MS}$ and PDS. Both also lead to lower limits in the decay widths that could, in principle, be tested experimentally. / In this thesis we study radiative decays of the exotic meson X(3872) into $J/ \\psi \\gamma$ and $\\psi(2S) \\gamma$ using an effective field theory framework. Assuming the exotic meson to be primarily a molecular state of the mesons $D$ and $ \\bar{D}^{*}$, we perform a renormalization analysis to estimate the contribution of the short-distance physics. This is done using two different prescriptions, the popular $\\overline{MS}$ scheme, valid only for perturbative calculations, and the PDS scheme, used in EFTs for loosely-bound systems and intrinsically non-perturbative. We show that, without a short-distance contact interaction, the observables become very dependent on the regularization scale, therefore demanding proper renormalization. We include two short-distance contact terms, one for each decay channel, and impose the renormalization condition within both $\\overline{MS}$ and PDS schemes. We obtain the behavior of the contact term with the renormalization scale $\\mu$, which can be useful in guiding models for the short-distance part. We note, however, distinct behaviors between $\\overline{MS}$ and PDS. Both also lead to lower limits in the decay widths that could, in principle, be tested experimentally.

No description available.

In the twenty-first century, there are still many difficulties arise on software development. For example, the growing commercial demand variability, but the software maintainable level over time becoming less and less. We have to raise the importance of software design. Using good software design approachs to face the increasingly complex commercial demand. Therefore, this study analyzed the large-scale enterprise systems for the software design problems. Based on the theory of software design, software design methodology, software architecture, design pattern and design principle, this study introduce three software design approachs:"Flexible Integration Design", "Loosely Coupled Design", and "Parameter Table Design". Using the extensibility, flexibility, pluggability and reuseability to design system integration solutions: "Unified Accounting Rule Table" and "Unified Interface". This will help the large-scale enterprise systems for software development to increase quality and efficiency.

In this thesis, a loosely coupled Fluid-Structure Interaction (FSI) analysis method is developed for the solution of steady state missile/rocket aeroelastic problems. FLUENT is used as the Computational Fluid Dynamics (CFD) tool to solve Euler equations whereas ANSYS is used as the Computational Structural Dynamics (CSD) tool to solve linear structural problem. The use of two different solvers requires exchanging data between fluid and structure domains at each iteration step. Kriging interpolation method is employed for the data transfer between non-coincident fluid and structure grids. For mesh deformation FLUENT&rsquo / s built-in spring based smoothing approach is utilized. The study is mainly divided into two parts. In the first part static aeroelastic analysis for AGARD 445.6 wing is conducted and the results are compared with the reference studies. Deformation and pressure coefficient results are compared with reference both of which are in good agreement. In the second part, to investigate possible effects of aeroelasticity on rocket and missile configurations, static aeroelastic analysis for a canard controlled generic slender missile which is similar to a conventional 2.75&rdquo / rocket geometry is conducted and results of the analysis for elastic missile are compared with the rigid case. It is seen that the lift force produced by canards and tails lessen due to deformations, stability characteristics of the missile decreases significantly and center of pressure location changes due to the deformations in the control surfaces.

Eutrophic Utah Lake receives a large nutrient load from a variety of sources, includingtreated wastewater discharges, runoff and tributaries, recycling from bottom sediments andAtmospheric Deposition (AD). AD was the focus of this study and was comprised of twocomplementary parts. First was a study of nitrogen and phosphorus depositions from theatmosphere, and second was a study of phosphorous as contained in soils near Utah Lake viafractionation methods.The soil samples were found to contain approximately 1,000 mg-P/kg soil for totalphosphorus (TP). A separate phosphorus (P) fractionation gave slightly higher values, excludingthe residual P, we are 95% confident that one gram of sample soil contains between 2.2 and 4.3percent water soluble P, 0.6 to 1.1 percent loosely-bound P, 2.5 to 4.4 percent aluminum andiron-bound P, and 90.7 to 94.2 percent calcium-bound P.AD results indicate that during the period from April 1 to Nov 17, 2018, Utah Lakereceived approximately 58 tons of soluble reactive P, 153 tons of TP, 118 tons of nitrogen (N)from nitrate, and 387 tons of N from ammonium via AD.Nutrient quantities from AD are very large compared to the 17 ton/yr of P needed for aeutrophic loading to the lake. Because of the very large overall nutrient loading to Utah Lake, itis likely that some other limiting growth factors are controlling algal growth.

Dans le Cambodge angkorien, les souverains khmers administraient une paysannerie mouvante par le biais de temples-palais. Lorsque les Français prennent le contrôle, en 1845, ils se retrouvent devant une « masse paysanne inorganisée, inorganique même » (Delvert, 1961 : 201) et restent « confondus devant la mobilité des Cambodgiens » (Forest, 1980 : 30). À l’époque postcoloniale, les ethnologues feront essentiellement le même constat, pendant que John F. Embree (1950) proposera de catégoriser les sociétés indianisées du Sud-Est asiatique comme étant « loosely structured » : postulant une faible intégration individuelle des structures sociales donnant lieu à une prévalence de comportements individualistes ad hoc et à des communautés sans réelle organisation. La proposition fera école. Ces observations paraissent justes, mais l’analyse infructueuse. La structure dont parle Embree s’appuie sur une culture hautement syncrétique qui se reflétait aléatoirement dans les comportements. Mais l’organisation sociale khmère se trouve ailleurs : dans les solutions organisationnelles qui gouvernent les choix des individus lorsqu’ils doivent se regrouper afin d’effectuer des tâches récurrentes. À ce titre, les paysans khmers évoluaient dans une organisation sociale rigoureusement minimaliste et flexible. La maisonnée était l’élément essentiel, tandis que la communauté territoriale locale était contingente et fluctuante. Dans l’environnement naturel généreux du Cambodge, un petit groupe d’individus mobiles réunis sous un même toit pouvait aisément accomplir toutes les tâches nécessaires à sa survie. Alors on ne s’attachait jamais indéfiniment à une localité : seulement à des communautés sans cesse en évolution, centrées autour de pagodes agissant comme des ports d’ancrage. / In Angkorian Cambodia, Khmer rulers administered a moving peasantry through temple-palaces. When the French took over, in 1845, they found what administrators called an unorganized mass of peasants, “even inorganic” (Delvert, 1961: 201) and were confounded by Cambodian peasants’ mobility (Forest, 1980: 30). During the postcolonial era, ethnologists essentially came to the same conclusions, while John F. Embree (1950) proposed to categorize South-East Asian indianized societies as “loosely structured”. He postulated that the prevalence of ad hoc individualistic behavior and the lack of organization found in communities were due to a weak integration of social structures at the individual level. Many ethnologists followed in Embree’s path. These observations appear just but the analysis seems unfruitful. Embree’s structure is modeled on a highly syncretic Khmer culture which was randomly reflected in individual behavior indeed. But Khmer social organization lies elsewhere: In the organizational strategies which govern individual choices when groups must come together to accomplish recurring tasks. In this respect, Cambodian peasants evolved in a social organization that was rigorously minimalistic and flexible. The household was the essential element here, while the local territorial community was incidental. In Cambodia’s generous natural environment, a small mobile group of individuals united under one roof could easily accomplish all the tasks essential to their survival. Thus the Khmer never attached themselves indefinitely to a locality: Only to ever evolving communities, centered on pagodas which acted as anchor harbors.

Inertial Measurement Unit (IMU) and Global Positioning System (GPS) receivers are sensors that are widely used for land vehicle navigation. GPS receivers provide position and/or velocity data to any user on the Earth&rsquo / s surface independent of his position. Yet, there are some conditions that the receiver encounters difficulties, such as weather conditions and some blockage problems due to buildings, trees etc. Due to these difficulties, GPS receivers&rsquo / errors increase. On the other hand, IMU works with respect to Newton&rsquo / s laws. Thus, in stark contrast with other navigation sensors (i.e. radar, ultrasonic sensors etc.), it is not corrupted by external signals. Owing to this feature, IMU is used in almost all navigation applications. However, it has some disadvantages such as possible alignment errors, computational errors and instrumentation errors (e.g., bias, scale factor, random noise, nonlinearity etc.). Therefore, a fusion or integration of GPS and IMU provides a more accurate navigation data compared to only GPS or only IMU navigation data. v In this thesis, loosely coupled GPS/IMU integration systems are implemented using feed forward and feedback configurations. The mechanization equations, which convert the IMU navigation data (i.e. acceleration and angular velocity components) with respect to an inertial reference frame to position, velocity and orientation data with respect to any desired frame, are derived for the geographical frame. In other words, the mechanization equations convert the IMU data to the Inertial Navigation System (INS) data. Concerning this conversion, error model of INS is developed using the perturbation of the mechanization equations and adding the IMU&rsquo / s sensor&rsquo / s error model to the perturbed mechanization equation. Based on this error model, a Kalman filter is constructed. Finally, current navigation data is calculated using IMU data with the help of the mechanization equations. GPS receiver supplies external measurement data to Kalman filter. Kalman filter estimates the error of INS using the error mathematical model and current navigation data is updated using Kalman filter error estimates. Within the scope of this study, some real experimental tests are carried out using the software developed as a part of this study. The test results verify that feedback GPS/INS integration is more accurate and reliable than feed forward GPS/INS. In addition, some tests are carried out to observe the results when the GPS receiver&rsquo / s data lost. In these tests also, the feedback GPS/INS integration is observed to have better performance than the feed forward GPS/INS integration.

Dans le Cambodge angkorien, les souverains khmers administraient une paysannerie mouvante par le biais de temples-palais. Lorsque les Français prennent le contrôle, en 1845, ils se retrouvent devant une « masse paysanne inorganisée, inorganique même » (Delvert, 1961 : 201) et restent « confondus devant la mobilité des Cambodgiens » (Forest, 1980 : 30). À l’époque postcoloniale, les ethnologues feront essentiellement le même constat, pendant que John F. Embree (1950) proposera de catégoriser les sociétés indianisées du Sud-Est asiatique comme étant « loosely structured » : postulant une faible intégration individuelle des structures sociales donnant lieu à une prévalence de comportements individualistes ad hoc et à des communautés sans réelle organisation. La proposition fera école. Ces observations paraissent justes, mais l’analyse infructueuse. La structure dont parle Embree s’appuie sur une culture hautement syncrétique qui se reflétait aléatoirement dans les comportements. Mais l’organisation sociale khmère se trouve ailleurs : dans les solutions organisationnelles qui gouvernent les choix des individus lorsqu’ils doivent se regrouper afin d’effectuer des tâches récurrentes. À ce titre, les paysans khmers évoluaient dans une organisation sociale rigoureusement minimaliste et flexible. La maisonnée était l’élément essentiel, tandis que la communauté territoriale locale était contingente et fluctuante. Dans l’environnement naturel généreux du Cambodge, un petit groupe d’individus mobiles réunis sous un même toit pouvait aisément accomplir toutes les tâches nécessaires à sa survie. Alors on ne s’attachait jamais indéfiniment à une localité : seulement à des communautés sans cesse en évolution, centrées autour de pagodes agissant comme des ports d’ancrage. / In Angkorian Cambodia, Khmer rulers administered a moving peasantry through temple-palaces. When the French took over, in 1845, they found what administrators called an unorganized mass of peasants, “even inorganic” (Delvert, 1961: 201) and were confounded by Cambodian peasants’ mobility (Forest, 1980: 30). During the postcolonial era, ethnologists essentially came to the same conclusions, while John F. Embree (1950) proposed to categorize South-East Asian indianized societies as “loosely structured”. He postulated that the prevalence of ad hoc individualistic behavior and the lack of organization found in communities were due to a weak integration of social structures at the individual level. Many ethnologists followed in Embree’s path. These observations appear just but the analysis seems unfruitful. Embree’s structure is modeled on a highly syncretic Khmer culture which was randomly reflected in individual behavior indeed. But Khmer social organization lies elsewhere: In the organizational strategies which govern individual choices when groups must come together to accomplish recurring tasks. In this respect, Cambodian peasants evolved in a social organization that was rigorously minimalistic and flexible. The household was the essential element here, while the local territorial community was incidental. In Cambodia’s generous natural environment, a small mobile group of individuals united under one roof could easily accomplish all the tasks essential to their survival. Thus the Khmer never attached themselves indefinitely to a locality: Only to ever evolving communities, centered on pagodas which acted as anchor harbors.

The execution of parallel discrete event simulation across metacomputing infrastructures is examined. A master/worker architecture for parallel discrete event simulation is proposed providing robust executions under a dynamic set of services with system-level support for fault tolerance, semi-automated client-directed load balancing, portability across heterogeneous machines, and the ability to run codes on idle or time-sharing clients without significant interaction by users. Research questions and challenges associated with issues and limitations with the work distribution paradigm, targeted computational domain, performance metrics, and the intended class of applications to be used in this context are analyzed and discussed. A portable web services approach to master/worker parallel discrete event simulation is proposed and evaluated with subsequent optimizations to increase the efficiency of large-scale simulation execution through distributed master service design and intrinsic overhead reduction. New techniques for addressing challenges associated with optimistic parallel discrete event simulation across metacomputing such as rollbacks and message unsending with an inherently different computation paradigm utilizing master services and time windows are proposed and examined. Results indicate that a master/worker approach utilizing loosely coupled resources is a viable means for high throughput parallel discrete event simulation by enhancing existing computational capacity or providing alternate execution capability for less time-critical codes.