1,420 research outputs found

    The cloning of the 5.4-KB plasmid of Bacillus megaterium

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    Includes bibliographical references.The construction of a stable cloning vector would be very useful to the study of genetics of Bacillus megaterium. It seems reasonable to assume that a vector made with a natural resident plasmid of this species will be stable. This is the rationale behind cloning the 5.4-kilobase plasmid of B. megaterium. The 5.4-kb plasmid and the vector were each cut with a restriction endonuclease that produced blunt ends. These two plasmids were ligated using the enzyme T4 DNA ligase. The recombinant plasmid was transformed into E. coli. Transformant DNA was then analyzed using restriction enzvmes. Because of errors in the restriction analysis data used, only part of the 5.4-kb plasmid has been cloned. However, this hybrid plasmid may still be useful in constructing cloning vectors for use in B. megaterium. and other bacilli.B.S. (Bachelor of Science

    “If Justice Is Not Equal For All, It Is Not Justice”: Racial Bias, Prosecutorial Misconduct, and the Right to a Fair Trial in \u3cem\u3eState v. Monday\u3c/em\u3e

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    This Note argues that of the three opinions from Monday, Washington state courts should follow Chief Justice Madsen’s concurring opinion. The Monday decision also raises three questions that none of the opinions adequately answer: who does Monday apply to, what conduct does Monday forbid, and what is the legal source of the rules from Monday? The court will have to answer these questions in the future to determine the scope of its new rules. Part II of this Note discusses how Washington courts previously addressed the issue of prosecutorial misconduct and appeals to racial bias in trials. Part III analyzes the three opinions from Monday. In Part IV, this Note argues in favor of Chief Justice Madsen’s concurrence. Part V looks at the three questions that the Monday opinion raises, and Part VI concludes

    “If Justice Is Not Equal For All, It Is Not Justice”: Racial Bias, Prosecutorial Misconduct, and the Right to a Fair Trial in \u3cem\u3eState v. Monday\u3c/em\u3e

    Get PDF
    This Note argues that of the three opinions from Monday, Washington state courts should follow Chief Justice Madsen’s concurring opinion. The Monday decision also raises three questions that none of the opinions adequately answer: who does Monday apply to, what conduct does Monday forbid, and what is the legal source of the rules from Monday? The court will have to answer these questions in the future to determine the scope of its new rules. Part II of this Note discusses how Washington courts previously addressed the issue of prosecutorial misconduct and appeals to racial bias in trials. Part III analyzes the three opinions from Monday. In Part IV, this Note argues in favor of Chief Justice Madsen’s concurrence. Part V looks at the three questions that the Monday opinion raises, and Part VI concludes

    Principals\u27 Practices Contributing to the Attainment of Adequate Yearly Progress in Georgia

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    The leadership focus for school improvement has changed from managing the political environment of the school to focusing on continuous improvement. The purpose of this study was to examine Georgia school principals\u27 practices that are used to improve student achievement in order to meet Adequately Yearly Progress (AYP). The study included elementary, middle, and high school principals from selected schools that made AYP. Focus groups from each of the schools were also interviewed and included parents, teachers and other school leadership. The same interview questions asked of the principal were also asked of the focus groups. The responses from the unstructured interviews were reported in narrative form and identified leadership practices principals used to improve student achievement. After conducting a thorough review of literature in the area of school principals practices, the relationship of the impact of practices and student achievement was examined. The findings of the study included organizing the school to support students who are struggling academically, communication of expectations, and controlling the instructional program. This study also found differences between elementary and middle and high schools: The community and school leaders\u27 beliefs at the elementary level were primarily related to instructional practices, whereas at the middle and high school levels more focus was placed on programmatic practices. Based on the results, the study concluded that principals\u27 practices can impact the potential for a school making AYP, but continued educational research is needed to expand the understanding of the specific practices that principals need in order to create environments in which students can achieve higher levels of learning

    Acoustic signal processing based on the short-time spectrum

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    technical reportThe frequency domain representation of a time signal afforded by the Fourier transform is a powerful tool in acoustic signal processing. The usefulness of this representation is rooted in the mechanisms of sound production and perception. Many sources of sound exhibit normal modes or natural frequencies of vibration, and can be described concisely in the frequency domain. The human auditory system performs frequency analysis early in the hearing process, so perception is often best described by frequency domain parameters. This dissertation investigates a new approach to acoustic signal processing based on the short-time fourier transform, a two dimensional representation which shows the time and frequency structure of sounds. This representation is appropriate for signals such as speech and music. Where the natural frequencies of the source change and timing of these changes is important to perception. The principal advantage of this approach is that the signal processing domain is similar to the perceptual domain, so that signal modifications can be related to perceptual criteria. The mathematical basis for this type of processing is developed, and four examples are described: removal of broad band background noise, isolation of perceptually important speech features, dynamic range compression and expansion, and removal of locally periodic interfering signals

    Simulations of solar cell absorption enhancement using resonant modes of a nanosphere array

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    We propose an approach for enhancing the absorption of thin-film amorphous silicon solar cells using periodic arrangements of resonant dielectric nanospheres deposited as a continuous film on top of a thin planar cell. We numerically demonstrate this enhancement using 3D full field finite difference time domain simulations and 3D finite element device physics simulations of a nanosphere array above a thin-film amorphous silicon solar cell structure featuring back reflector and anti-reflection coating. In addition, we use the full field finite difference time domain results as input to finite element device physics simulations to demonstrate that the enhanced absorption contributes to the current extracted from the device. We study the influence of a multi-sized array of spheres, compare spheres and domes and propose an analytical model based on the temporal coupled mode theory

    What Collaboration Means to Us: Access Is Lost - What now?

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    In this column we describe the actions taken by the University of California, Davis Library to support and to communicate with the campus research community after the suspension of access to Elsevier\u27s ScienceDirect platform
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