3,760 research outputs found

    Theories of action for effecting education reform

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    While it is a considerable over-simplification, I have found it useful to think in terms of four theories of action that I believe dominate the education-reform arena today. I think that two of these theories have some promise. Two of them do not, but we will nevertheless surely continue to use them. In the real world, we commonly find more than one of these theories operating at the same time in a given place. It gets very complicated when you start mixing and matching and coming up with hybrids. On the other hand, that is the real world, and I think we are probably going to discover at the end of the day that a hybrid will work better than any one of these strategies taken alone.Education

    Implementation and analysis of a Navier-Stokes algorithm on parallel computers

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    The results of the implementation of a Navier-Stokes algorithm on three parallel/vector computers are presented. The object of this research is to determine how well, or poorly, a single numerical algorithm would map onto three different architectures. The algorithm is a compact difference scheme for the solution of the incompressible, two-dimensional, time-dependent Navier-Stokes equations. The computers were chosen so as to encompass a variety of architectures. They are the following: the MPP, an SIMD machine with 16K bit serial processors; Flex/32, an MIMD machine with 20 processors; and Cray/2. The implementation of the algorithm is discussed in relation to these architectures and measures of the performance on each machine are given. The basic comparison is among SIMD instruction parallelism on the MPP, MIMD process parallelism on the Flex/32, and vectorization of a serial code on the Cray/2. Simple performance models are used to describe the performance. These models highlight the bottlenecks and limiting factors for this algorithm on these architectures. Finally, conclusions are presented

    A direct-execution parallel architecture for the Advanced Continuous Simulation Language (ACSL)

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    A direct-execution parallel architecture for the Advanced Continuous Simulation Language (ACSL) is presented which overcomes the traditional disadvantages of simulations executed on a digital computer. The incorporation of parallel processing allows the mapping of simulations into a digital computer to be done in the same inherently parallel manner as they are currently mapped onto an analog computer. The direct-execution format maximizes the efficiency of the executed code since the need for a high level language compiler is eliminated. Resolution is greatly increased over that which is available with an analog computer without the sacrifice in execution speed normally expected with digitial computer simulations. Although this report covers all aspects of the new architecture, key emphasis is placed on the processing element configuration and the microprogramming of the ACLS constructs. The execution times for all ACLS constructs are computed using a model of a processing element based on the AMD 29000 CPU and the AMD 29027 FPU. The increase in execution speed provided by parallel processing is exemplified by comparing the derived execution times of two ACSL programs with the execution times for the same programs executed on a similar sequential architecture

    Solving the Cauchy-Riemann equations on parallel computers

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    Discussed is the implementation of a single algorithm on three parallel-vector computers. The algorithm is a relaxation scheme for the solution of the Cauchy-Riemann equations; a set of coupled first order partial differential equations. The computers were chosen so as to encompass a variety of architectures. They are: the MPP, and SIMD machine with 16K bit serial processors; FLEX/32, an MIMD machine with 20 processors; and CRAY/2, an MIMD machine with four vector processors. The machine architectures are briefly described. The implementation of the algorithm is discussed in relation to these architectures and measures of the performance on each machine are given. Simple performance models are used to describe the performance. These models highlight the bottlenecks and limiting factors for this algorithm on these architectures. Conclusions are presented

    Transcription of Zachary Shuler\u27s Recollections of the Gettysburg Address, undated

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    This typed transcript relays Zachary Shuler\u27s recollections of how he came to be present at the Gettysburg address, what the crowd was like there, and what he recalls of the speech, itself. Shuler admits that he, at fifteen years old, was too young to comprehend the importance of the speech at the time.https://scholarsjunction.msstate.edu/fvw-manuscripts-original-manuscripts/1190/thumbnail.jp

    Alien Registration- Bates, Chester E. (Houlton, Aroostook County)

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    https://digitalmaine.com/alien_docs/35955/thumbnail.jp

    The effect of pH value and pressure cooking on the mashing of corn.

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    Domestic Minor Sex Trafficking and Social Work Practice

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    Domestic minor sex trafficking (DMST) is a social problem affecting children between the ages of 12 and 17 years old. The issues related to DMST present challenges for social work practitioners because they often lack knowledge regarding how to identify and provide specialized services to this population. The purpose of the qualitative study was to collect and analyze data to develop an understanding of how social workers in the northeastern region of the United States identified challenges and thereby improved their practice skills when intervening with this vulnerable population. An epistemological paradigm, with a constructivist perspective employing Nguyen\u27s systems theory, was used to understand the phenomena. The practice-focused research question posed to 5 clinically licensed social workers (LCSW) asked about the perceived barriers hindering social work practice when identifying victims of DMST. In addition, upon recognition of DMST victims, participants described existing community services that addressed their social work practice needs. The LCSWs attended 3 hour-long audio-recorded focus groups, offering their knowledge and experiences related to DMST in the designated region. Constant comparison was used to analyze the data provided by the participants during the focus groups. The key findings indicated a lack of proper identification tools and specialized services for this community. Findings can be used to recommend social change efforts, which included increasing communication about the victims between jurisdictions and communications with policy makers and service providers regarding the need to develop and implement training on various related topics
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