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Sample records for content church-turing thesis

  1. Algorithmic information content, Church-Turing thesis, physical entropy, and Maxwell's demon

    SciTech Connect

    Zurek, W.H.

    1990-01-01

    Measurements convert alternative possibilities of its potential outcomes into the definiteness of the record'' -- data describing the actual outcome. The resulting decrease of statistical entropy has been, since the inception of the Maxwell's demon, regarded as a threat to the second law of thermodynamics. For, when the statistical entropy is employed as the measure of the useful work which can be extracted from the system, its decrease by the information gathering actions of the observer would lead one to believe that, at least from the observer's viewpoint, the second law can be violated. I show that the decrease of ignorance does not necessarily lead to the lowering of disorder of the measured physical system. Measurements can only convert uncertainty (quantified by the statistical entropy) into randomness of the outcome (given by the algorithmic information content of the data). The ability to extract useful work is measured by physical entropy, which is equal to the sum of these two measures of disorder. So defined physical entropy is, on the average, constant in course of the measurements carried out by the observer on an equilibrium system. 27 refs., 6 figs.

  2. Space-Bounded Church-Turing Thesis and Computational Tractability of Closed Systems.

    PubMed

    Braverman, Mark; Schneider, Jonathan; Rojas, Cristóbal

    2015-08-28

    We report a new limitation on the ability of physical systems to perform computation-one that is based on generalizing the notion of memory, or storage space, available to the system to perform the computation. Roughly, we define memory as the maximal amount of information that the evolving system can carry from one instant to the next. We show that memory is a limiting factor in computation even in lieu of any time limitations on the evolving system-such as when considering its equilibrium regime. We call this limitation the space-bounded Church-Turing thesis (SBCT). The SBCT is supported by a simulation assertion (SA), which states that predicting the long-term behavior of bounded-memory systems is computationally tractable. In particular, one corollary of SA is an explicit bound on the computational hardness of the long-term behavior of a discrete-time finite-dimensional dynamical system that is affected by noise. We prove such a bound explicitly. PMID:26371687

  3. Space-Bounded Church-Turing Thesis and Computational Tractability of Closed Systems

    NASA Astrophysics Data System (ADS)

    Braverman, Mark; Schneider, Jonathan; Rojas, Cristóbal

    2015-08-01

    We report a new limitation on the ability of physical systems to perform computation—one that is based on generalizing the notion of memory, or storage space, available to the system to perform the computation. Roughly, we define memory as the maximal amount of information that the evolving system can carry from one instant to the next. We show that memory is a limiting factor in computation even in lieu of any time limitations on the evolving system—such as when considering its equilibrium regime. We call this limitation the space-bounded Church-Turing thesis (SBCT). The SBCT is supported by a simulation assertion (SA), which states that predicting the long-term behavior of bounded-memory systems is computationally tractable. In particular, one corollary of SA is an explicit bound on the computational hardness of the long-term behavior of a discrete-time finite-dimensional dynamical system that is affected by noise. We prove such a bound explicitly.

  4. Quantum theory, the Church-Turing principle and the universal quantum computer

    NASA Astrophysics Data System (ADS)

    Deutsch, D.

    1985-07-01

    During the last few decades, an extensive development of the theory of computing machines has occurred. On an intuitive basis, a computing machine is considered to be any physical system whose dynamical evolution takes it from one of a set of 'input' states to one of a set of 'output' states. For a classical deterministic system the measured output label is a definite function f of the prepared input label. However, quantum computing machines, and indeed classical stochastic computing machines, do not 'compute functions' in the considered sense. Attention is given to the universal Turing machine, the Church-Turing principle, quantum computers, the properties of the universal quantum computer, and connections between physics and computer science.

  5. Toward a Unifying Theory of Post-Elementary School Reading: The "Languaging in the Content Areas" Thesis.

    ERIC Educational Resources Information Center

    Manzo, Anthony V.; Sherk, John K., Jr.

    This paper discusses the central theoretical aspects of the "Languaging in the Content Areas" (LICA) thesis, intended to provide postelementary reading with a sense of definition and purpose compatible with contemporary needs and conditions. The objective of the LICA thesis is not merely to teach students how to read critically what has been

  6. Trace element contents of selected antarctic meteorites, 1. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Biswas, S.; Ngo, H. T.; Lipschutz, M. E.

    1979-01-01

    Data are reported for volatile/mobile Ag, As, Au, Bi, Cd, Co, Cs, Cu, Ga, In, Rb, Sb, Se, Te, T1 and Zn in exterior and/or interior samples of four Antarctic meteorites: 77005 (unique achondrite); 77257 (unreilite); 77278 (L3); 77299 (H3). Exterior samples reflect contamination and/or leaching by weathering but trace element (ppm-ppt) contents in interior samples seem reasonable for representatives of these rare meteoritic types. The 77005 achondrite seems related to shergottites; other samples extend compositional ranges previously known for their types. With suitable precautions, Antarctic meteorite finds yield trace element data as reliable as those obtained from previously known falls.

  7. Going beyond the Thesis

    ERIC Educational Resources Information Center

    Smith, Andrew C.

    2010-01-01

    Most every writing teacher can relate to the curse of reading yet another incoherent essay, the contents of which resemble an unorganized junk drawer of thoughts. Such essays cry out for a main idea. The remedy is a thesis, and teachers rightly take pains to help students discover this. Yet in spite of this, writing teachers ought to bear in mind…

  8. Teaching the Thesis

    ERIC Educational Resources Information Center

    Carroll, Joyce Armstrong

    2012-01-01

    Writing a good thesis provides a successful foundation for composing an essay. Teaching how to do that, however, is quite another matter. Teachers often say to students, "Find a thesis," or "Get a thesis," or "Bring in a thesis statement tomorrow," as if students could order one like a pizza, command it like a pet pooch, or grasp one out of thin

  9. Teaching the Thesis

    ERIC Educational Resources Information Center

    Carroll, Joyce Armstrong

    2012-01-01

    Writing a good thesis provides a successful foundation for composing an essay. Teaching how to do that, however, is quite another matter. Teachers often say to students, "Find a thesis," or "Get a thesis," or "Bring in a thesis statement tomorrow," as if students could order one like a pizza, command it like a pet pooch, or grasp one out of thin…

  10. A study of reduced chromium content in a nickel-base superalloy via element substitution and rapid solidification processing. Ph.D. ThesisFinal Report

    NASA Technical Reports Server (NTRS)

    Powers, William O.

    1987-01-01

    A study of reduced chromium content in a nickel base superalloy via element substitution and rapid solidification processing was performed. The two elements used as partial substitutes for chromium were Si and Zr. The microstructure of conventionally solidified materials was characterized using microscopy techniques. These alloys were rapidly solidified using the chill block melt spinning technique and the rapidly solidified microstructures were characterized using electron microscopy. The spinning technique and the rapidly solidified microstructures was assessed following heat treatments at 1033 and 1272 K. Rapidly solidified material of three alloys was reduced to particulate form and consolidated using hot isostatic pressing (HIP). The consolidated materials were also characterized using microscopy techniques. In order to evaluate the relative strengths of the consolidated alloys, compression tests were performed at room temperature and 1033 K on samples of as-HIPed and HIPed plus solution treated material. Yield strength, porosity, and oxidation resistance characteristics are given and compared.

  11. The Tractable Cognition Thesis

    ERIC Educational Resources Information Center

    van Rooij, Iris

    2008-01-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the "Tractable Cognition thesis": Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories

  12. The Tractable Cognition Thesis

    ERIC Educational Resources Information Center

    van Rooij, Iris

    2008-01-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the "Tractable Cognition thesis": Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories…

  13. The tractable cognition thesis.

    PubMed

    Van Rooij, Iris

    2008-09-01

    The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the Tractable Cognition thesis: Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories of cognition. To utilize this constraint, a precise and workable definition of "computational tractability" is needed. Following computer science tradition, many cognitive scientists and psychologists define computational tractability as polynomial-time computability, leading to the P-Cognition thesis. This article explains how and why the P-Cognition thesis may be overly restrictive, risking the exclusion of veridical computational-level theories from scientific investigation. An argument is made to replace the P-Cognition thesis by the FPT-Cognition thesis as an alternative formalization of the Tractable Cognition thesis (here, FPT stands for fixed-parameter tractable). Possible objections to the Tractable Cognition thesis, and its proposed formalization, are discussed, and existing misconceptions are clarified. PMID:21585437

  14. Degree by Thesis

    ERIC Educational Resources Information Center

    Courtis, Barbara

    1974-01-01

    Discusses a student's experience with a research project on the synthesis and reactions of an organo-platinum complex with an organo-Group IV linkage, including the advantages and disadvantages of such a degree by thesis course. (CC)

  15. Special issue: Culham Thesis Prize winners

    NASA Astrophysics Data System (ADS)

    Ham, C. J.

    2015-01-01

    The Culham Thesis Prize is awarded annually to the nominee who has displayed an excellence in the execution of the scientific method as witnessed by the award of Doctor of Philosophy in Plasma Science from a UK or Irish university. The thesis content should exhibit significant new work and originality, clearly driven by the nominee, be well explained and demonstrate a good understanding of the subject. The prize is awarded at the Institute of Physics Plasma Physics Group Spring Conference and the prize winner gives an invited talk about their thesis work. The prize is sponsored by Culham Centre for Fusion Energy.

  16. The Las Vegas Thesis

    ERIC Educational Resources Information Center

    Sughrua, William

    2010-01-01

    Following "reflexive ethnography" and utilizing an approach of "performative narrative" and "layered text", this article explores how Bachelor of Arts students in the Teaching of English as a Foreign Language program at a public university in Mexico successfully manage the writing of an inductive-oriented thesis in English by resisting…

  17. Senior Thesis Research at Princeton.

    ERIC Educational Resources Information Center

    Prud'homme, Robert K.

    1981-01-01

    Reviews a senior undergraduate research program in chemical engineering at Princeton University. Includes strengths and requirements for a successful program. Senior thesis research provides creative problem solving experiences for students and is congruent with departmental research objectives. Selected student comments are included. (SK)

  18. Consistency and Inconsistency in PhD Thesis Examination

    ERIC Educational Resources Information Center

    Holbrook, Allyson; Bourke, Sid; Lovat, Terry; Fairbairn, Hedy

    2008-01-01

    This is a mixed methods investigation of consistency in PhD examination. At its core is the quantification of the content and conceptual analysis of examiner reports for 804 Australian theses. First, the level of consistency between what examiners say in their reports and the recommendation they provide for a thesis is explored, followed by an…

  19. Ukraine: Independent nuclear weapons capability rising. Master's thesis

    SciTech Connect

    Dewing, M.J.

    1993-06-01

    This thesis argues that Ukraine will move from possession of CIS-controlled nuclear weapons to the development of an independent nuclear capability. It attempts to show how the factors driving Ukraine towards remaining a nuclear state outweigh the factors acting in restraint. This thesis describes the contents of the Ukrainian arsenal, reviews its current material condition and investigates the likelihood that Ukraine can directly control it. This thesis also shows why Ukraine's most likely course in developing and independent nuclear weapons capability will be to retain its 46 SS-24 ICBMs. United States, Ukraine, Russia, Strategic weapons, National strategy, Nuclear strategy, Arms control, Strategic stability, Nuclear weapons Strategic command and control, International relations.

  20. The Master's Thesis in Applied Psychology Training.

    ERIC Educational Resources Information Center

    Shultz, Kenneth S.; Kottke, Janet L.

    1996-01-01

    Recommends the inclusion of a master's thesis in industrial and organizational psychology programs. Argues that the thesis serves several critical educational purposes and is relevant to applied psychology. Offers suggestions for increasing the relationship between the educational requirement and the professional tasks. (MJP)

  1. Preparing for thesis and viva: some practicalities.

    PubMed

    Lee, Nancy-Jane

    2010-01-01

    Presenting a thesis and then undertaking the viva is challenging even for the most experienced of researchers. This paper offers stylistic practicalities, reflects on thesis and viva preparation, and discusses the research regulations and submission requirements of higher education institutions (HEIs). Issues such as the use of the first person, how best to locate research in the professional setting, research regulations and codes of practice are discussed, along with some guiding principles to enable effective viva preparation. It is derived from experience as a doctoral student, supervisor and examiner, and focuses on questions most frequently asked by doctoral students. PMID:20450089

  2. Dancing the Thesis, Writing on the Body

    ERIC Educational Resources Information Center

    Mills, Dana

    2014-01-01

    This article explores the connection between dance and politics through reflection on the process of writing a thesis about those two fields. Similarities and differences in the educational and disciplinary processes of academic practice and dance training are brought out, while focusing on the technique developed by Martha Graham: in particular…

  3. Dancing the Thesis, Writing on the Body

    ERIC Educational Resources Information Center

    Mills, Dana

    2014-01-01

    This article explores the connection between dance and politics through reflection on the process of writing a thesis about those two fields. Similarities and differences in the educational and disciplinary processes of academic practice and dance training are brought out, while focusing on the technique developed by Martha Graham: in particular

  4. The Thesis, the Pendulum and the Battlefield

    ERIC Educational Resources Information Center

    Ameri, Amir

    2015-01-01

    The debate over the design thesis is often entangled in the dialectics of the practical and the theoretical. Whether the argument is waged and weighted in favour of a practical emphasis or a theoretical emphasis, or more insidious, a judicious balance between the two, what is inevitably assumed in the debate is the possibility of drawing and/or

  5. The Thesis, the Pendulum and the Battlefield

    ERIC Educational Resources Information Center

    Ameri, Amir

    2015-01-01

    The debate over the design thesis is often entangled in the dialectics of the practical and the theoretical. Whether the argument is waged and weighted in favour of a practical emphasis or a theoretical emphasis, or more insidious, a judicious balance between the two, what is inevitably assumed in the debate is the possibility of drawing and/or…

  6. How I Chose My Thesis Advisor

    NASA Astrophysics Data System (ADS)

    Karimabadi, Homa

    2011-01-01

    Professor K. Papadopoulos, or Dennis, who we have all come to him as, has had a profound influence over my career as a scientist as well as my private life. Here I provide a brief account of the events that led me to Dennis as my PhD thesis advisor at University of Maryland and what that has meant to me.

  7. Finding the Genesis for a Thesis

    ERIC Educational Resources Information Center

    Caroll, Joyce Armstrong

    2013-01-01

    This article describes a prewriting heuristics strategy that can help students find the genesis of their thesis. The 3 functions of the heuristic procedure are that it aids in retrieving relevant information stored in the mind; draws attention to important information that can be further researched or accessed; and prepares the mind for the…

  8. Writing a Structured Abstract for the Thesis

    ERIC Educational Resources Information Center

    Hartley, James

    2010-01-01

    This article presents the author's suggestions on how to improve thesis abstracts. The author describes two books on writing abstracts: (1) "Creating Effective Conference Abstracts and Posters in Biomedicine: 500 tips for Success" (Fraser, Fuller & Hutber, 2009), a compendium of clear advice--a must book to have in one's hand as one prepares a…

  9. Beyond Armageddon: Deterrence with less. Master's thesis

    SciTech Connect

    Kolbas, P.J.

    1991-06-01

    This thesis examines the implications for nuclear deterrence between the United States and the Soviet Union brought about by the dramatic changes in the strategic environment during the 1980s. Specifically, it examines the potential for a new criteria of deterrence at significantly lower levels of strategic weapons. The analysis indicates that a targeting strategy which emphasizes economic and industrial facilities will deter the Soviet Union. This targeting strategy allows for a reduction to 1500 strategic weapons while maintaining the robustness of nuclear deterrence between the United States and the Soviet Union. Using as its criteria arms race stability, breakout stability, crisis stability, verification, predictability, consequences of war, and the security of friends and allies, this thesis concludes that a force structure comprised of the Trident D-5 Submarine-launched ballistic missile and the B-2 bomber best ensures deterrence both against the Soviet Union and any other nuclear power regardless of changes in their political or ideological orientation. To provide maximum flexibility while negotiating the agreement and to hedge against a breakdown in U.S/Soviet relations prior to implementation, the thesis recommends a modernization program for U.S. strategic forces including funding for the restructured Strategic Defense Initiative which is now named Global Protection Against Limited Strikes.

  10. Alternative American foreign policy for Ukraine. Master's thesis

    SciTech Connect

    Williams, R.G.

    1993-06-01

    American policy makers have largely ignored Ukraine in their global policy planning. This lack of consideration shows a neglect of the potential for conflict in Eastern Europe. American foreign policy toward Ukraine, that is rooted in the START and NPT Treaties, is doomed to fail, and will actually sow the seeds of chaos, unless the United States: (1) comes to understand the motivations that drive Ukrainian foreign policy, and (2) facilitate significant positive alterations to the security and economic environment that has developed since the breakup of the Soviet Union. This thesis examines Western security goals and analyzes the current means available to achieve those goals. The contention of this thesis is that present Western policy pursuits will lead to a regenerated authoritarian Russian superpower that will be a threat to the security of Ukraine and Europe. The potentially dangerous consequences of an authoritarian Russia could be avoided by facilitating the development of a strong and stable Ukraine to act as a balance to Russian power in Eastern Europe. United States, Ukraine, Foreign policy, Nuclear arms negotiations, Economic aid, Russia.

  11. Evaluability Assessment Thesis and Dissertation Studies in Graduate Professional Degree Programs

    ERIC Educational Resources Information Center

    Walser, Tamara M.; Trevisan, Michael S.

    2016-01-01

    Evaluability assessment (EA) has potential as a design option for thesis and dissertation studies, serving as a practical training experience for both technical and nontechnical evaluation skills. Based on a content review of a sample of EA theses and dissertations from graduate professional degree programs, the authors of this article found that…

  12. Space tether-radar data processing. Master`s thesis

    SciTech Connect

    Brewster, W.A.

    1994-09-01

    NASA conducted the Delta-PMG tethered satellite missions. It was conducted to verify the hollow cathode plasma source`s ability to couple electric currents from each end of a long wire tether traversing the ambient low earth orbit ionosphere plasma observations were obtained through a suite of sensors which included large ground based VHF radars. The goal of this thesis was to process the radar data received at the radar based in Hawaii to study disturbances in the Earth`s ionosphere caused by the tether. After extensive analysis, unique radar returns were identified that were associated with the passage of the tether system through magnetic field lines threading the radar`s field of view. These returns were interpreted as a plasma cloud propagating along a magnetic field line and reflecting back along another. This phenomenon produced dual returns with inverted Doppler frequency content.

  13. Adaptive identification by systolic arrays. Master's thesis

    SciTech Connect

    Willis, P.A.

    1987-12-01

    This thesis is concerned with the implementation of an adaptive-identification algorithm using parallel processing and systolic arrays. In particular, discrete samples of input and output data of a system with uncertain characteristics are used to determine the parameters of its model. The identification algorithm is based on recursive least squares, QR decomposition, and block-processing techniques with covariance resetting. Along similar lines as previous approaches, the identification process is based on the use of Givens rotations. This approach uses the Cordic algorithm for improved numerical efficiency in performing the rotations. Additionally, floating-point and fixed-point arithmetic implementations are compared.

  14. [Degree thesis in nursing: single center experience].

    PubMed

    Bulfone, Giampiera; Zanini, Antonietta; Cuomo, Elisabetta; Bresadola, Marco

    2008-01-01

    In literature, about Italy, there are only few studies regarding final thesis and the choices of the nursing student of first level degree. The scope of this study is to analyze the theses of the nursing students of University of Udine to the aim to characterize the fields and and the modalities used from the students in order to write this work. This work analysed 162 theses discussed in three years academics. The triennial experience of Udine's University demonstrates that the nursing students invest more time to elaborate this theses especially in clinical area and intrahospital context. The structuring of a multicentric study that involved other university could give surer information. PMID:19250615

  15. Thermal Signature Identification System (TheSIS)

    NASA Technical Reports Server (NTRS)

    Merritt, Scott; Bean, Brian

    2015-01-01

    We characterize both nonlinear and high order linear responses of fiber-optic and optoelectronic components using spread spectrum temperature cycling methods. This Thermal Signature Identification System (TheSIS) provides much more detail than conventional narrowband or quasi-static temperature profiling methods. This detail allows us to match components more thoroughly, detect subtle reversible shifts in performance, and investigate the cause of instabilities or irreversible changes. In particular, we create parameterized models of athermal fiber Bragg gratings (FBGs), delay line interferometers (DLIs), and distributed feedback (DFB) lasers, then subject the alternative models to selection via the Akaike Information Criterion (AIC). Detailed pairing of components, e.g. FBGs, is accomplished by means of weighted distance metrics or norms, rather than on the basis of a single parameter, such as center wavelength.

  16. Single link flexible beam testbed project. Thesis

    NASA Technical Reports Server (NTRS)

    Hughes, Declan

    1992-01-01

    This thesis describes the single link flexible beam testbed at the CLaMS laboratory in terms of its hardware, software, and linear model, and presents two controllers, each including a hub angle proportional-derivative (PD) feedback compensator and one augmented by a second static gain full state feedback loop, based upon a synthesized strictly positive real (SPR) output, that increases specific flexible mode pole damping ratios w.r.t the PD only case and hence reduces unwanted residual oscillation effects. Restricting full state feedback gains so as to produce a SPR open loop transfer function ensures that the associated compensator has an infinite gain margin and a phase margin of at least (-90, 90) degrees. Both experimental and simulation data are evaluated in order to compare some different observer performance when applied to the real testbed and to the linear model when uncompensated flexible modes are included.

  17. What Examiners Do: What Thesis Students Should Know

    ERIC Educational Resources Information Center

    Golding, Clinton; Sharmini, Sharon; Lazarovitch, Ayelet

    2014-01-01

    Although many articles have been written about thesis assessment, none provide a comprehensive, general picture of what examiners do as they assess a thesis. To synthesise this diverse literature, we reviewed 30 articles, triangulated their conclusions and identified 11 examiner practices. Thesis examiners tend to be broadly consistent in their…

  18. Instructable autonomous agents. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Huffman, Scott Bradley

    1994-01-01

    In contrast to current intelligent systems, which must be laboriously programmed for each task they are meant to perform, instructable agents can be taught new tasks and associated knowledge. This thesis presents a general theory of learning from tutorial instruction and its use to produce an instructable agent. Tutorial instruction is a particularly powerful form of instruction, because it allows the instructor to communicate whatever kind of knowledge a student needs at whatever point it is needed. To exploit this broad flexibility, however, a tutorable agent must support a full range of interaction with its instructor to learn a full range of knowledge. Thus, unlike most machine learning tasks, which target deep learning of a single kind of knowledge from a single kind of input, tutorability requires a breadth of learning from a broad range of instructional interactions. The theory of learning from tutorial instruction presented here has two parts. First, a computational model of an intelligent agent, the problem space computational model, indicates the types of knowledge that determine an agent's performance, and thus, that should be acquirable via instruction. Second, a learning technique, called situated explanation specifies how the agent learns general knowledge from instruction. The theory is embodied by an implemented agent, Instructo-Soar, built within the Soar architecture. Instructo-Soar is able to learn hierarchies of completely new tasks, to extend task knowledge to apply in new situations, and in fact to acquire every type of knowledge it uses during task performance - control knowledge, knowledge of operators' effects, state inferences, etc. - from interactive natural language instructions. This variety of learning occurs by applying the situated explanation technique to a variety of instructional interactions involving a variety of types of instructions (commands, statements, conditionals, etc.). By taking seriously the requirements of flexible tutorial instruction, Instructo-Soar demonstrates a breadth of interaction and learning capabilities that goes beyond previous instructable systems, such as learning apprentice systems. Instructo-Soar's techniques could form the basis for future 'instructable technologies' that come equipped with basic capabilities, and can be taught by novice users to perform any number of desired tasks.

  19. Complexity, universality and intermediate degrees

    NASA Astrophysics Data System (ADS)

    Joosten, Joost J.

    2012-09-01

    This paper is a philosophical account of complexity versus universality. It seems sustainable to equate universal systems to complex systems or at least to potentially complex systems. Post's problem on the existence of (natural) intermediate degrees (between decidable and universal Σ01) then finds its analog in the Principle of Computional Equivalence (PCE). In this abstract we address possible driving forces -if any- behind PCE. Both the natural aspects as well as the cognitive ones are investigated. We postulate a principle GNS that we call the Generalized Natural Selection principle that together with the Church-Turing thesis is seen to be equivalent in a sense to a weak version of PCE.

  20. [Dashengbian (thesis on longevity) and its author].

    PubMed

    Jia, Z; Yang, Y

    1996-05-01

    Dashengbian was a very popular obstetric book in the 18th century. It once had a significant influence in history not only because it fairly well sumed up predecessors' experiences and filled in the gaps in the field of obstetrics, but also because it had an easy-reading, concise and practical contents. As for the author of the book, although many blockprinted editions were signed by Lay Buddhist Ji Zhai, his real name was unknown. This article holds that the book had been circulated for some time before it came out in the 54th year of Kang Xi reign which is in line with the manuscripts of Qian Long reign of the Qing dynasty and the names carried in its case records. According to other relevant data, the article believes that Lay Buddhist Ji Zhai was most likely to be Zhang Zhao, a scholar of the early Qing dynasty. PMID:11613342

  1. What Works for Doctoral Students in Completing Their Thesis?

    ERIC Educational Resources Information Center

    Lindsay, Sin

    2015-01-01

    Writing a thesis is one of the most challenging activities that a doctoral student must undertake and can represent a barrier to timely completion. This is relevant in light of current and widespread concerns regarding doctoral completion rates. This study explored thesis writing approaches of students post or near Ph.D. completion through

  2. An Investigation of Generic Structures of Pakistani Doctoral Thesis Acknowledgements

    ERIC Educational Resources Information Center

    Rofess, Sakander; Mahmood, Muhammad Asim

    2015-01-01

    This paper investigates Pakistani doctoral thesis acknowledgements from genre analysis perspective. A corpus of 235 PhD thesis acknowledgements written in English was taken from Pakistani doctoral theses collected from eight different disciplines. HEC Research Repository of Pakistan was used as a data sources. The theses written by Pakistani…

  3. Collaborating for Success: Team Teaching the Engineering Technical Thesis

    ERIC Educational Resources Information Center

    Keating, Terrence; Long, Mike

    2012-01-01

    This paper will examine the collaborative teaching process undertaken at College of the North Atlantic-Qatar (CNA-Q) by Engineering and the Communication faculties to improve the overall quality of engineering students' capstone projects known as the Technical Thesis. The Technical Thesis is divided into two separate components: a proposal stage…

  4. What Works for Doctoral Students in Completing Their Thesis?

    ERIC Educational Resources Information Center

    Lindsay, Siân

    2015-01-01

    Writing a thesis is one of the most challenging activities that a doctoral student must undertake and can represent a barrier to timely completion. This is relevant in light of current and widespread concerns regarding doctoral completion rates. This study explored thesis writing approaches of students post or near Ph.D. completion through…

  5. Attitudes on Conducting Thesis Research in a Developing Country.

    ERIC Educational Resources Information Center

    Mason, S. C.; And Others

    1987-01-01

    Reports on a survey conducted to study attitudes toward agronomy graduate students conducting thesis research in developing countries. Compares perceptions of executive officers of international program offices and departments of agronomy, and major professors. (TW)

  6. Provocative Opinion - Selection of Thesis Research: The Most Important Course

    ERIC Educational Resources Information Center

    Lansbury, Peter T.

    1975-01-01

    Addresses the problem of insufficient guidance for graduate students who are choosing their doctoral research area. Describes a required graduate course for all doctoral candidates in chemistry at SUNY Buffalo entitled, "Selection of Thesis Research." (MLH)

  7. Importance and benefits of the doctoral thesis for medical graduates

    PubMed Central

    Giesler, Marianne; Boeker, Martin; Fabry, Götz; Biller, Silke

    2016-01-01

    Introduction: The majority of medical graduates in Germany complete a doctorate, even though a doctoral degree is not necessary for the practice of medicine. So far, little is known about doctoral candidates’ view on the individual benefit a doctoral thesis has for them. Consequently, this is the subject of the present investigation. Method: Data from surveys with graduates of the five medical faculties of Baden-Württemberg from the graduation years 2007/2008 (N=514) and 2010/2011 (N=598) were analysed. Results: One and a half years after graduating 53% of those interviewed had completed their doctorate. When asked about their motivation for writing a doctoral thesis, participants answered most frequently “a doctorate is usual” (85%) and “improvement of job opportunities” (75%), 36% said that an academic career has been their primary motive. Less than 10% responded that they used their doctoral thesis as a means to apply for a job. The proportion of graduates working in health care is equally large among those who have completed a thesis and those who have not. Graduates who pursued a thesis due to scientific interest are also currently more interested in an academic career and recognise more opportunities for research. An implicit benefit of a medical thesis emerged with regard to the self-assessment of scientific competences as those who completed a doctorate rated their scientific competencies higher than those who have not. Discussion: Although for the majority of physicians research interest is not the primary motivation for completing a doctorate, they might nevertheless achieve some academic competencies. For graduates pursuing an academic career the benefit of completing a medical thesis is more obvious. PMID:26958656

  8. [Eleven thesis on the archive of scientific research, for a new patrimonial and scientific policy].

    PubMed

    Müller, Bertrand

    2015-12-01

    Abstracting the main content of a recent report on the bad state of the archives of scientific research, this paper puts forward eleven thesis likely to feed, in this time of numeric transition to a new documentary regime and to a new patrimonial policy. The recent numeric conditions impose to set new archival pratices, more proactive, anticipative and prospective. Archives of scientific research must be thought in a double memorial and scientific dimension, and not only as a patrimonial or historical one. PMID:26746647

  9. Deterring weapons of mass destruction terrorism. Master`s thesis

    SciTech Connect

    LeHardy, F.A.

    1997-12-01

    This thesis examines terrorist acts involving the use of weapons of mass destruction (WMD) against unsuspecting civilians by the Aum Shinrikyo and Rajneesh cults. The proliferation of WMD (i.e., nuclear, chemical, and biological weapons) has created a concern that terrorists might use WMD. Despite obvious signs, these groups were not identified as terrorists until after they committed terrorist attacks. This thesis identifies common characteristics of terrorists that have used WMD in the past and generates indicators of non-state actors that might commit WMD terrorism in the future.

  10. Thesis Writing Challenges for Non-Native MA Students

    ERIC Educational Resources Information Center

    Sadeghi, Karim; Shirzad Khajepasha, Arash

    2015-01-01

    Writing in a second (L2)/foreign language is generally a challenging activity, and writing an MA thesis, as an example of academic enterprise, can be daunting when done in a language in which the writer is not fully competent. The challenge such a genre of writing poses for L2 writers has not been properly addressed. To fill in the gap in this

  11. Support for Different Roles in Software Engineering Master's Thesis Projects

    ERIC Educational Resources Information Center

    Host, M.; Feldt, R.; Luders, F.

    2010-01-01

    Like many engineering programs in Europe, the final part of most Swedish software engineering programs is a longer project in which the students write a Master's thesis. These projects are often conducted in cooperation between a university and industry, and the students often have two supervisors, one at the university and one in industry. In

  12. iThesis: Polly's project

    ERIC Educational Resources Information Center

    Conti, Alvaro

    2013-01-01

    This paper outlines an attempt to loosen the existing role and structure of the traditional "thesis" as the key undergraduate learning instrument within universities in Thailand. It does so by describing an exemplary project -- Polly's project - that uses technology to facilitate an exit from the "regulatory space" in…

  13. Thesis Writing Challenges for Non-Native MA Students

    ERIC Educational Resources Information Center

    Sadeghi, Karim; Shirzad Khajepasha, Arash

    2015-01-01

    Writing in a second (L2)/foreign language is generally a challenging activity, and writing an MA thesis, as an example of academic enterprise, can be daunting when done in a language in which the writer is not fully competent. The challenge such a genre of writing poses for L2 writers has not been properly addressed. To fill in the gap in this…

  14. The Doctoral Thesis and Supervision: The Student Perspective

    ERIC Educational Resources Information Center

    Kiguwa, Peace; Langa, Malose

    2009-01-01

    The doctoral thesis constitutes both a negotiation of the supervision relationship as well as mastery and skill in participating in a specific community of practice. Two models of supervision are discussed: the technical rationality model with its emphasis on technical aspects of supervision, and the negotiated order model with an emphasis on…

  15. Assessing the Doctoral Thesis When It Includes Published Work

    ERIC Educational Resources Information Center

    Sharmini, Sharon; Spronken-Smith, Rachel; Golding, Clinton; Harland, Tony

    2015-01-01

    In this article we explore how examiners assess a thesis that includes published work. An online survey was used to gather data on approaches to assessing publication-based theses (PBTs). The respondents were 62 supervisors who had experience examining PBTs across a range of disciplines at a research-intensive university in New Zealand. Nearly

  16. The Thesis Black Market: Present State and Background

    ERIC Educational Resources Information Center

    Gang, Wang

    2007-01-01

    The superficial reason for the existence of the thesis black market is the glut of theses and the shortage of publishing space; behind that is the skewed academic assessment system. Today, the following circumstances can be found in virtually all institutions of higher education in China: (1) A master's degree student must, during the two or

  17. Assessing the Doctoral Thesis When It Includes Published Work

    ERIC Educational Resources Information Center

    Sharmini, Sharon; Spronken-Smith, Rachel; Golding, Clinton; Harland, Tony

    2015-01-01

    In this article we explore how examiners assess a thesis that includes published work. An online survey was used to gather data on approaches to assessing publication-based theses (PBTs). The respondents were 62 supervisors who had experience examining PBTs across a range of disciplines at a research-intensive university in New Zealand. Nearly…

  18. Turning Points: Improving Honors Student Preparation for Thesis Completion

    ERIC Educational Resources Information Center

    Patino, Cynthia

    2012-01-01

    This dissertation is an action research study that had as its primary goal to increase retention of honors college students at Arizona State University by implementing an additional advising session during the fifth semester of their academic career. Introducing additional, strategically-timed support for the honors thesis and demystifying the…

  19. A Supervisor's Roles for Successful Thesis and Dissertation

    ERIC Educational Resources Information Center

    Mhunpiew, Nathara

    2013-01-01

    The success of a thesis or a dissertation for a graduate student relies upon the roles of their supervisor. The student not only needs to be equipped with the knowledge, but also be able to manage others and external factors at the same time. The journey during the period of conducting research is mixed with various tasks. Five supportive roles of…

  20. Abstract of Thesis: Learning Graphical Skills in Kinematics

    ERIC Educational Resources Information Center

    Australian Science Teachers Journal, 1972

    1972-01-01

    Summarizes a doctoral thesis that validated a Gagnian learning hierarchy and showed that graphical skills were more quickly learned the greater the guidance that was given, but that there was no difference in retention and transfer between guided and discovery learning of these skills. (AL)

  1. The Jailing of America's Homeless: Evaluating the Rabble Management Thesis

    ERIC Educational Resources Information Center

    Fitzpatrick, Kevin M.; Myrstol, Brad

    2011-01-01

    The authors of this article test hypotheses derived from Irwin's rabble management thesis. The analysis uses data from 47,592 interviews conducted with jailed adults in 30 U.S. cities as part of the Arrestee Drug Abuse Monitoring program. Clearly, homeless persons are overrepresented among those arrested and booked into local jails. Bivariate…

  2. Intergroup Contact and Ingroup Reappraisal: Examining the Deprovincialization Thesis

    ERIC Educational Resources Information Center

    Verkuyten, Maykel; Thijs, Jochem; Bekhuis, Hidde

    2010-01-01

    According to the deprovincialization thesis, interethnic contact involves a reappraisal and distancing from the ingroup. Contact can broaden one's horizon by acknowledging and recognizing the value of other cultures and thereby putting the taken-for-granted own cultural standards into perspective. The current research uses data from three surveys…

  3. Turning Points: Improving Honors Student Preparation for Thesis Completion

    ERIC Educational Resources Information Center

    Patino, Cynthia

    2012-01-01

    This dissertation is an action research study that had as its primary goal to increase retention of honors college students at Arizona State University by implementing an additional advising session during the fifth semester of their academic career. Introducing additional, strategically-timed support for the honors thesis and demystifying the

  4. Complete Your Dissertation or Thesis in Two Semesters or Less

    ERIC Educational Resources Information Center

    Ogden, Evelyn Hunt

    2006-01-01

    This newly updated guide describes how to effectively and efficiently manage the dissertation or thesis process in two semesters or less. Written for doctoral and master's degree students enrolled in on-campus programs and students pursuing accelerated and online-based degree programs, this book demystifies the seemingly daunting process. From

  5. Support for Different Roles in Software Engineering Master's Thesis Projects

    ERIC Educational Resources Information Center

    Host, M.; Feldt, R.; Luders, F.

    2010-01-01

    Like many engineering programs in Europe, the final part of most Swedish software engineering programs is a longer project in which the students write a Master's thesis. These projects are often conducted in cooperation between a university and industry, and the students often have two supervisors, one at the university and one in industry. In…

  6. Intergroup Contact and Ingroup Reappraisal: Examining the Deprovincialization Thesis

    ERIC Educational Resources Information Center

    Verkuyten, Maykel; Thijs, Jochem; Bekhuis, Hidde

    2010-01-01

    According to the deprovincialization thesis, interethnic contact involves a reappraisal and distancing from the ingroup. Contact can broaden one's horizon by acknowledging and recognizing the value of other cultures and thereby putting the taken-for-granted own cultural standards into perspective. The current research uses data from three surveys

  7. The Thesis Black Market: Present State and Background

    ERIC Educational Resources Information Center

    Gang, Wang

    2007-01-01

    The superficial reason for the existence of the thesis black market is the glut of theses and the shortage of publishing space; behind that is the skewed academic assessment system. Today, the following circumstances can be found in virtually all institutions of higher education in China: (1) A master's degree student must, during the two or…

  8. Complete Your Dissertation or Thesis in Two Semesters or Less

    ERIC Educational Resources Information Center

    Ogden, Evelyn Hunt

    2006-01-01

    This newly updated guide describes how to effectively and efficiently manage the dissertation or thesis process in two semesters or less. Written for doctoral and master's degree students enrolled in on-campus programs and students pursuing accelerated and online-based degree programs, this book demystifies the seemingly daunting process. From…

  9. Parallel architecture for real-time simulation. Master's thesis

    SciTech Connect

    Cockrell, C.D.

    1989-01-01

    This thesis is concerned with the development of a very fast and highly efficient parallel computer architecture for real-time simulation of continuous systems. Currently, several parallel processing systems exist that may be capable of executing a complex simulation in real-time. These systems are examined and the pros and cons of each system discussed. The thesis then introduced a custom-designed parallel architecture based upon The University of Alabama's OPERA architecture. Each component of this system is discussed and rationale presented for its selection. The problem selected, real-time simulation of the Space Shuttle Main Engine for the test and evaluation of the proposed architecture, is explored, identifying the areas where parallelism can be exploited and parallel processing applied. Results from the test and evaluation phase are presented and compared with the results of the same problem that has been processed on a uniprocessor system.

  10. Spratly islands: A brewing flashpoint in Asia. Master's thesis

    SciTech Connect

    Borje, A.

    1994-06-01

    The Spratly Islands are developing into a flashpoint in the South China Sea region. Geological surveys conducted underneath the seabed of these islands following the oil crisis in the 1970s shows an enormous potential of oil and gas reserves. Moreover, with the adoption of the new International Law of the Sea concept there are overlapping claims by contending countries. Unless these claimant countries reconcile their differences and come to terms, the conflict is bound to escalate. This thesis is an in depth study of the disputes over the Spratlys and examines four cases of islands based territorial disputes that could be used as a model in resolving these tensions. This thesis argues that a military option will only create division and in-flame longstanding animosities. Instead, a peaceful solution is recommended as quickly as possible so that regional nations will realize the full potential of these islands. Spratly Islands in the South China Sea.

  11. A matrix safety frame approach to robot safety for space applications. Thesis

    NASA Technical Reports Server (NTRS)

    Montgomery, T. D.; Lauderbaugh, L. Ken

    1988-01-01

    The planned use of autonomous robots in space applications has generated many new safety problems. This thesis assesses safety of autonomous robot systems through the structure of a proposed three-dimensional matrix safety frame. By identifying the common points of accidents and fatalities involving terrestrial robots, reviewing terrestrial robot safety standards, and modifying and extending these results to space applications, hazards are identified and their associated risks assessed. Three components of the safeguarding dimension of the matrix safety frame, safeguarding through design and operation for intrinsic safety, and incorporation of add-on safety systems are explained through examples for both terrestrial and space robots. A space robot hazard identification checklist, a qualitative tool for robot systems designers, is developed using the structure imparted by the matrix safety frame. The development of an expert system from the contents of the checklist is discussed.

  12. The M68HC11 gripper controller software. Thesis

    NASA Technical Reports Server (NTRS)

    Tsai, Jodi Wei-Duk

    1991-01-01

    This thesis discusses the development of firmware for the 68HC11 gripper controller. A general description of the software and hardware interfaces is given. The C library interface for the gripper is then described and followed by a detailed discussion of the software architecture of the firmware. A procedure to assemble and download 68HC11 programs is presented in the form of a tutorial. The tools used to implement this environment are then described. Finally, the implementation of the configuration management scheme used to manage all CIRSSE software is presented.

  13. A Petri net controller for distributed hierarchical systems. Thesis

    NASA Technical Reports Server (NTRS)

    Peck, Joseph E.

    1991-01-01

    The solutions to a wide variety of problems are often best organized as a distributed hierarchical system. These systems can be graphically and mathematically modeled through the use of Petri nets, which can easily represent synchronous, asynchronous, and concurrent operations. This thesis presents a controller implementation based on Petri nets and a design methodology for the interconnection of distributed Petri nets. Two case studies are presented in which the controller operates a physical system, the Center for Intelligent Robotic Systems for Space Exploration Dual Arm Robotic Testbed.

  14. Expert system for tutoring intelligence analysts. Master's thesis

    SciTech Connect

    Melvin, R.O.

    1986-06-01

    Intelligent Computer Aided Instruction (ICAI) allows a computer to perform some of the functions normally performed by a human instructor. This thesis describes the design and implementation of an ICAI system which presents radar principles to a student, tests him, finds out why he made an error, and then corrects the error. To allow the system to be used for different subject domains, the knowledge required to teach was kept separate from the knowledge about the subject domain. During the design phase, the knowledge about teaching was partitioned into eight knowledge bases, the functions of these knowledge bases were described, and their interactions with one another were shown. During the implementation phase, each knowledge base was developed separately before being integrated into the system. Of these eight knowledge bases, the knowledge base that tests the student received the major emphasis. This knowledge base generates a multiple-choice question, finds the answer, and creates plausible incorrect answers to serve as distractors. Although the radar range equation was used to test this knowledge base, this knowledge base performs the same functions with any equation which is entered into the system in its canonical form. Although this thesis establishes the framework for an ICAI system and then demonstrates its feasibility, further research is required before the system can be used in an actual training environment.

  15. TCP Packet Trace Analysis. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Shepard, Timothy J.

    1991-01-01

    Examination of a trace of packets collected from the network is often the only method available for diagnosing protocol performance problems in computer networks. This thesis explores the use of packet traces to diagnose performance problems of the transport protocol TCP. Unfortunately, manual examination of these traces can be so tedious that effective analysis is not possible. The primary contribution of this thesis is a graphical method of displaying the packet trace which greatly reduce, the tediousness of examining a packet trace. The graphical method is demonstrated by the examination of some packet traces of typical TCP connections. The performance of two different implementations of TCP sending data across a particular network path is compared. Traces many thousands of packets long are used to demonstrate how effectively the graphical method simplifies examination of long complicated traces. In the comparison of the two TCP implementations, the burstiness of the TCP transmitter appeared to be related to the achieved throughput. A method of quantifying this burstiness is presented and its possible relevance to understanding the performance of TCP is discussed.

  16. The polarizability of diatomic helium. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Fortune, P. J.

    1974-01-01

    The calculation of the electric dipole polarizability tensor of the He 2 dimer is described, and the results are used in the computation of several dielectric and optical properties of helium gas, at both high (322 K) and low (4 K) temperatures. The properties considered are the second dielectric virial coefficient, the second Kerr virial coefficient, and the depolarization ratio of the integrated intensities for the Raman scattering experiments. The thesis consists of five parts: the polarizability and various properties are defined; the calculation of the polarizability in the long-range region in terms of a quantum mechanical multipole expansion is described; the calculation of the He2 polarizability in the overlap region via coupled Hartree-Fock perturbation theory is described; the calculation of the quantum pair distribution function for both the He-3 and He-4 isotopes at 4 K is discussed; and the calculated values of the properties of helium gas are given.

  17. The functional matrix hypothesis revisited. 3. The genomic thesis.

    PubMed

    Moss, M L

    1997-09-01

    Although the initial versions of the functional matrix hypothesis (FMH) theoretically posited the ontogenetic primacy of "function," it is only in recent years that advances in the morphogenetic, engineering, and computer sciences provided an integrated experimental and numerical data base that permitted recent significant revisions of the FMH--revisions that strongly support the primary role of function in craniofacial growth and development. Acknowledging that the currently dominant scientific paradigm suggests that genomic, instead of epigenetic (functional) factors, regulate (cause, control) such growth, an analysis of this continuing controversy was deemed useful. Accordingly the method of dialectical analysis, is employed, stating a thesis, an antithesis, and a resolving synthesis based primarily on an extensive review of the pertinent current literature. This article extensively reviews the genomic hypothesis and offers a critique intended to remove some of the unintentional conceptual obscurantism that has recently come to surround it. PMID:9294365

  18. The challenge of giving written thesis feedback to nursing students.

    PubMed

    Tuvesson, Hanna; Borglin, Gunilla

    2014-11-01

    Providing effective written feedback on nursing student's assignments can be a challenging task for any assessor. Additionally, as the student groups tend to become larger, written feedback is likely to gain an overall more prominent position than verbal feedback. Lack of formal training or regular discussion in the teaching faculty about the skill set needed to provide written feedback could negatively affect the students' learning abilities. In this brief paper, we discuss written feedback practices, whilst using the Bachelor of Science in Nursing thesis as an example. Our aim is to highlight the importance of an informed understanding of the impact written feedback can have on students. Creating awareness about this can facilitate the development of more strategic and successful written feedback strategies. We end by offering examples of some relatively simple strategies for improving this practice. PMID:25042741

  19. [Brazilian studies on nephrology produced in nursing thesis and dissertations].

    PubMed

    de Carvalho, Glria Maria Custdio; Lima, Francisca Elisngela Teixeira; Barbosa, Islene Victor; Melo, Elisabeth Mesquita

    2010-01-01

    The purpose was to evaluate the scientific production in Brazilian nursing about nephrology in theses and dissertations published from 2001 to 2007. A bibliometric study was carried out with the nursing thesis and dissertations according to the Center of Studies and Researches in Nursing catalog. It was found 50 works on nephrology, predominating: 45 (90%) dissertations; 30 (60%) in the state of So Paulo; 18 (36%) in clinics of dialysis; 39 (78%) samples were patients. Considering the types of study, it predominated: 26 (52%) exploratory, 28 (56%) survey and 27 (54%) quantitative. Concerning the theme, hemodialysis predominated with 21 (42%) publications. Scientific researches on this theme make possible a multi and interdisciplinary assistance to these clients, in an individualized, systematized and humanized way. PMID:21308243

  20. Energy management and control system verification study. Master's thesis

    SciTech Connect

    Boulware, K.E.; Williamson, G.C.

    1983-09-01

    Energy Management and Control Systems (EMCS) are being installed and operated throughout the Air Force. Millions of dollars have been spent on EMCS, but no study has conclusively proved that EMCS has actually saved the Air Force energy. This thesis used the Regression subprogram of Statistical Packages for the Social Sciences (SPSS) to determine if these systems are indeed saving the Air Force energy. Previous studies have shown that Multiple Linear Regression (MLR) is the best statistical predictor of base energy consumption. Eight bases were selected that had an operational EMCS. Two EMCS bases were compared with one control base for each of four CONUS winter heating zones. The results indicated small (less than 2%) energy savings have occurred at half of the EMCS bases studied. Therefore, this study does not conclusively prove that EMCS's have saved energy on Air Force bases. However, the methodology developed in this report could be applied on a broader scale to develop a more conclusive result.

  1. Religion and Death: A Test of Homans' Thesis.

    ERIC Educational Resources Information Center

    Leming, Michael R.

    1979-01-01

    Tests George Homans' contention that religion arouses a sense of anxiety concerning death and then alleviates the anxiety it creates. Evidence seems to indicate that religiosity may serve the dual function of afflicting the comforted and comforting the afflicted. (Author)

  2. Electronic Thesis Initiative: Pilot Project of McGill University, Montreal

    ERIC Educational Resources Information Center

    Park, Eun G.; Zou, Qing; McKnight, David

    2007-01-01

    Purpose: To set up a protocol for electronic thesis and dissertation (ETD) submission for the electronic thesis initiative pilot project at McGill University in Montreal, Canada. Design/methodology/approach: An electronic thesis and dissertation submission protocol was implemented and tested. To test authoring tools, we had 50 students submit

  3. Electronic Thesis Initiative: Pilot Project of McGill University, Montreal

    ERIC Educational Resources Information Center

    Park, Eun G.; Zou, Qing; McKnight, David

    2007-01-01

    Purpose: To set up a protocol for electronic thesis and dissertation (ETD) submission for the electronic thesis initiative pilot project at McGill University in Montreal, Canada. Design/methodology/approach: An electronic thesis and dissertation submission protocol was implemented and tested. To test authoring tools, we had 50 students submit…

  4. Effect of electron-density gradients on propagation of radio waves in the mid-latitude trough. Master's thesis

    SciTech Connect

    Citrone, P.J.

    1991-01-01

    Partial contents of this thesis include: (1) Radio-wave propagation and the mid-latitude trough; (2) Ionospheric measurements; (3) Modification of time-dependent ionospheric model output with latitudinal electron-density profiles from digisonde trough depictions; (4) Ray-tracing simulations to examine ground range; and (5) Effects of three-dimensional gradients in electron density on radio-wave propagation in the trough region. Data is tabulated for geophysical conditions, solar activity level, geomagnetic activity level, conditions for vertical ray refraction to surface, and ray-tracing fixed-input conditions.

  5. The History and Significance of the Incommensurability Thesis

    NASA Astrophysics Data System (ADS)

    Pearce, James Jacob

    The incommensurability thesis (IT) maintains that there are no non-prejudicial means of choosing between competing theories in the empirical sciences. If true, IT would entail that natural science is a fundamentally subjective or irrational activity. Should this latter claim prove justifiable, then empirical science cannot be regarded as an organ of objective knowledge, and "scientific realism" is eo ipso false. I follow the origin of IT from its pre-history in Logical Positivism, through certain preliminary philosophical developments in the work of Karl Popper, W. V. O. Quine, Stephen Toulmin and N. R. Hanson, to the eventual formulation and introduction of IT by Thomas Kuhn and Paul Feyerabend. I then examine the rigorous criticism of IT by various philosophers since about 1964, and discuss different methods of objective theory comparison which have been advanced by such philosophers as Hilary Putnam, W. H. Newton-Smith, Michael Devitt, Hartry Field, Philip Kitcher and Howard Sankey. I conclude by arguing for two counterintuitive claims: (1) Even if true, IT fails to provide evidence against scientific realism. (2) In fact, the truth of IT actually furnishes evidence for a necessary condition for scientific realism, and hence evidence which can be construed as indirectly favorable to scientific realism.

  6. Geodetic measurement of deformation in California. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Sauber, Jeanne Marie

    1988-01-01

    The very long baseline interferometry (VLBI) measurements made in the western U.S. since 1979 as part of the NASA Crustal Dynamics Project provide discrete samples of the temporal and spatial deformation field. The interpretation of the VLBI-derived rates of deformation requires an examination of geologic information and more densely sampled ground-based geodetic data. In the first two of three related studies embodying this thesis triangulation and trilateration data measured on two regional networks are processed, one in the central Mojave Desert and one in the Coast Ranges east of the San Andreas fault. At the spatial scales spanned by these local geodetic networks, auxiliary geologic and geophysical data have been utilized to examine the relation between measured incremental strain and the accommodation of strain seen in local geological structures, strain release in earthquakes, and principal stress directions inferred from in situ measurements. In the third study, VLBI data from stations distributed across the Pacific - North American plate boundary zone in the western United States are processed. The VLBI data have been used to constrain the integrated rate of deformation across portions of the continental plate boundary in California and to provide a tectonic framework to interpret regional geodetic and geologic studies.

  7. Economic model for seaborne oil trade. Master`s thesis

    SciTech Connect

    Kian-Wah, H.

    1996-03-01

    This thesis aims to provide some insights as to how oil prices and oil flows might vary with the carrying capacity of the tanker fleet as affected by political events. It provides an econometric analysis of tanker freight rates in the modern era and proposes a mathematical (quadratic) programming economic model that links the crude oil market to the supply elasticity of the world oil tanker fleet based on a competitive economy. The economic model can be considered as a version of the Walras-Cassel general-equilibrium system which possesses an economically meaningful equilibrium solution in terms of oil prices, freight rates and the pattern of oil distribution. The implementation of the model is completed using the General Algebraic Modeling System (GAMS). The study concludes with a scenario study showing how the model could be used to examine the importance of South East Asia`s sealanes in world seaborne oil trade. The model shows the economic vulnerability of oil importing nations, especially Japan, the United States, and Western Europe, to a possible closure of South East Asian sealanes.

  8. Nuclear-electric magnetohydrodynamic propulsion for submarine. Master's thesis

    SciTech Connect

    Bednarczyk, A.A.

    1989-05-01

    The thesis analyzes the superconducting technology for a shipboard magnetohydrodynamic propulsion system. Based on the the principles of magnetohydrodynamics (MHD), the concept of open-water efficiency was used to optimize the preliminary design of the MHD thruster. After the baseline submarine hull modeled after the Los Angeles class submarine was selected, propulsive efficiency and the top speed for four variant MHD submarines were evaluated. The design criteria were set at a 100-MWt nuclear reactor power upper limit and a requirement of 30 knots for the top speed. This required advanced reactor plants and advanced energy conversion systems. The selection of High Temperature Gas Reactor (HTGR) and Liquid-Metal Fast Breeder Reactor (LMFBR) was based on the combined merits of safety, environmental impact, high source temperature and maximum-volume power density (KW/L). With the reactor outlet temperatures of 2000 K, direct-cycle energy conversion-systems gave the best results in terms of thermal efficiency and propulsion plant power density. Two energy conversion systems selected were closed-cycle gas turbine geared to a superconducting generator, and closed-cycle liquid-metal MHD generator. Based on submarine reliability and safety, the option of using an intermediate heat exchanger was also considered. Finally, non-nuclear support systems affected by the advanced power plant and MHD propulsion, stressing submarine safety, are proposed.

  9. Pakistan: Frontline state again. Master`s thesis

    SciTech Connect

    Rivard, D.S.

    1995-12-01

    The objective of this study is to determine Pakistan`s place in contemporary U.S. national security strategy. Today, U.S.-Pakistan relations are strained due to the Pressler Amendment to the Foreign Assistance Act. The Pressler Amendment prohibits arms transfers from the United States to Pakistan in response to Pakistani efforts to develop a nuclear weapon capability. This thesis provides a historical background to the current impasse by examining Pakistani foreign policy since 1947. Next, the study examines the evolution of U.S. interests and security objectives in South and Southwest Asia. Current security objectives analyzed are the U.S. strategies to contain Iran and Iraq and to prevent nuclear proliferation in the region. In order to attain security objectives in the region, the author concludes that the U.S. needs a close cooperative relationship with Pakistan. Since the Pressler Amendment stands as the greatest obstacle to improved U.S.-Pakistan relations, the amendment should be repealed.

  10. [Research in general medicine, role of the medical thesis].

    PubMed

    Levasseur, G; Schweyer, F X

    2003-06-01

    General practice doctors are naturally presented as being actors on the front lines of public health. The ability of general practitioners to be aware of and deal with public health questions largely depends upon their training. Perhaps one could consider the general practitioner's thesis as a preparatory analytical work within the area of their future field of practice. Do these theses serve to provide food for thought on general practice and its contribution to public health, and if not, could they? An analysis conducted within four medical schools in western France demonstrates that the work produced for general medicine identified as such only constitutes a fraction of the overall number of medical (non-university) theses (approximately 5%). Two possible explanations may be put forward. First, on the one hand, the theses highly depend on the context of the training and the work produced is a direct result of this. Second, on the other hand, the current methods of indexing notes in the university databases does not enable general medicine to be clearly seen and visibly recognised as an academic discipline. Two questions then remain: Can medical theses be considered as research? Should research in general medicine be carried out solely by general practitioners? It is vital that resources from outside the medical field be raised and mobilised for general practice research, whose themes are multi-disciplinary and not only clinical. PMID:12891817

  11. Nozzle Flow with Vibrational Nonequilibrium. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Landry, John Gary

    1995-01-01

    Flow of nitrogen gas through a converging-diverging nozzle is simulated. The flow is modeled using the Navier-Stokes equations that have been modified for vibrational nonequilibrium. The energy equation is replaced by two equations. One equation accounts for energy effects due to the translational and rotational degrees of freedom, and the other accounts for the affects due to the vibrational degree of freedom. The energy equations are coupled by a relaxation time which measures the time required for the vibrational energy component to equilibrate with the translational and rotational energy components. An improved relaxation time is used in this thesis. The equations are solved numerically using the Steger-Warming flux vector splitting method and the Implicit MacCormack method. The results show that uniform flow is produced outside of the boundary layer. Nonequilibrium exists in both the converging and diverging nozzle sections. The boundary layer region is characterized by a marked increase in translational-rotational temperature. The vibrational temperature remains frozen downstream of the nozzle, except in the boundary layer.

  12. Marine microbial production of dimethylsulfide from dissolved dimethylsulfoniopropionate. Doctoral thesis

    SciTech Connect

    Ledyard, K.M.

    1993-02-01

    Dimethylsulfide (DMS) plays a central role in the transfer of sulfur from the ocean to the atmosphere, and ultimately to land. The most abundant volatile organosulfur compound in seawater, DMS is believed to account for the bulk of the sea-to-air biogenic sulfur flux. DMS has also been implicated as the major precursor of submicron-sized sulfate aerosol over the ocean. This aerosol acts as an effective site for cloud droplet condensation, suggesting a possibly important role for DMS in marine cloud formation. In the ocean, the precursor of DMS is presumed to be the zwitterionic sulfonium compound dimethylsulfoniopropionate (DMSP), a common osmoticum in certain classes of marine algae. While some algae can cleave DMSP intracellularly to form DMS, correlation of DMS concentrations with indicators of algal productivity on a local scale is poor. This thesis focuses on an alternative pathway of DMS formation: microbial cleavage of dissolved (extracellular) DMSP. In laboratory studies, bacteria able to cleave DMSP to form DMS were isolated from seawater by a DMSP enrichment technique, and the kinetics of DMSP uptake and DMS production were examined closely in pure cultures of a bacterial isolate from the Sargasso Sea. The isolate could grow with both DMSP and acrylic acid, one of the products of DMSP cleavage, as the sole source of carbon and energy, and the enzyme catalyzing DMSP cleavage appeared to be induced by both of these compounds. Kinetic parameters were estimated for DMSP uptake and cleavage by whole cells. Comparison of the 16S rRNA sequence of this isolate with that of known eubacteria showed that it was most closely related to Erythrobacter longus, an aerobic, bacteriochlorophyll-containing member of the alpha proteobacteria.

  13. Global lightning activity and climate change. Ph.D. Thesis

    SciTech Connect

    Price, C.G.

    1993-01-01

    The relationship between global lightning frequencies and global climate change is examined in this thesis. In order to study global impacts of climate change, global climate models or General Circulations Models (GCM`s) need to be utilized. Since these models have coarse resolutions many atmospheric phenomena that occur at subgrid scales, such as lightning, need to be parameterized whenever possible. The first chapter introduces a simple parameterization used to simulate total (intracloud and cloud-to-ground) lightning frequencies. The parameterization uses convective cloud top height to approximate lightning frequencies. The second chapter deals with a parameterization for simulating cloud-to-ground (CG) lightning around the globe. This parameterization uses the thickness of the cold cloud sector in thunderstorms (0 C to cloud top) to calculate the proportion of CG flashes in a particular thunderstorm. The third chapter deals with the modelling of lightning in the Goddard Institute for Space Studies (GISS) GCM. This chapter presents results from the model`s control run. The fourth chapter presents two climate change scenarios. One for a climate where the solar constant is reduced by 2% (5.9 C global cooling), and one for a climate with twice the present concentration of CO2 in the atmosphere (4.2 C global warming). The results imply a 24% / 30% decrease/increase in global lightning frequencies for the cooler/warmer climate. The fifth chapter considers the possibility of using the above findings to monitor future global warming. The results show that the earth`s ionospheric potential, which is regulated by global thunderstorm activity, could possibly supply valuable information regarding global surface temperature fluctuations. The sixth and final chapter looks at the implications of changes in both lightning frequencies and the hydrological cycle, as a result of global warming, on natural forest fires.

  14. Spectral Domain Optical Coherence Tomography for Glaucoma (An AOS Thesis)

    PubMed Central

    Schuman, Joel S.

    2008-01-01

    Purpose Optical coherence tomography (OCT) is a rapidly evolving, robust technology that has profoundly changed the practice of ophthalmology. Spectral domain OCT (SD-OCT) increases axial resolution 2- to 3-fold and scan speed 60- to 110-fold vs time domain OCT (TD-OCT). SD-OCT enables novel scanning, denser sampling, and 3-dimensional imaging. This thesis tests my hypothesis that SD-OCT improves reproducibility, sensitivity, and specificity for glaucoma detection. Methods OCT progress is reviewed from invention onward, and future development is discussed. To test the hypothesis, TD-OCT and SD-OCT reproducibility and glaucoma discrimination are evaluated. Forty-one eyes of 21 subjects (SD-OCT) and 21 eyes of 21 subjects (TD-OCT) are studied to test retinal nerve fiber layer (RNFL) thickness measurement reproducibility. Forty eyes of 20 subjects (SD-OCT) and 21 eyes of 21 subjects (TD-OCT) are investigated to test macular parameter reproducibility. For both TD-OCT and SD-OCT, 83 eyes of 83 subjects are assessed to evaluate RNFL thickness and 74 eyes of 74 subjects to evaluate macular glaucoma discrimination. Results Compared to conventional TD-OCT, SD-OCT had statistically significantly better reproducibility in most sectoral macular thickness and peripapillary RNFL sectoral measurements. There was no statistically significant difference in overall mean macular or RNFL reproducibility, or between TD-OCT and SD-OCT glaucoma discrimination. Surprisingly, TD-OCT macular RNFL thickness showed glaucoma discrimination superior to SD-OCT. Conclusions At its current development state, SD-OCT shows better reproducibility than TD-OCT, but glaucoma discrimination is similar for TD-OCT and SD-OCT. Technological improvements are likely to enhance SD-OCT reproducibility, sensitivity, specificity, and utility, but these will require additional development. PMID:19277249

  15. Intermediate-range Nuclear Forces (INF) negotiations and treaty: An historical case study. Master's thesis

    SciTech Connect

    Wussler, D.E.

    1989-09-01

    This thesis performs detailed analysis of the Intermediate Range Nuclear Forces (INF) negotiations and treaty and compares them with those of the two Strategic Arms Limitations Talks (SALT). The study's objectives were: describe SALT and INF negotiations and the contents of the treaties; analyze US and Soviet goals and strategies during the INF negotiations; determine which goals were or were not attained by both sides, and ascertain reasons for this; and delineate arms control progress and prospects since INF Treaty ratification. The study found that the two SALT treaties did impose ceilings in certain areas of strategic weapons but did not curtail the arms race. Treaty verification methods were criticized as being lax. The US achieved the major goal of ridding Europe of the Soviet SS-20 missile. It had to deploy missiles of its own to make the USSR realize the seriousness of its resolve. The US had total support from NATO in achieving this goal. However, with INF gone, the European conventional forces imbalance looms larger, and the West is fighting to obtain asymmetric conventional cuts.

  16. Thermal Stability of Distillate Hydrocarbon Fuels. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Reddy, Kishenkumar Tadisina; Cernansky, Nicholas P.

    1987-01-01

    Thermal stability of fuels is expected to become a severe problem in the future due to the anticipated use of broadened specification and alternative fuels. Future fuels will have higher contents of heteroatomic species which are reactive constituents and are known to influence fuel degradation. To study the degradation chemistry of selected model fuels, n-dodecane and n-dodecane plus heteroatoms were aerated by bubbling air through the fuels amd stressed on a modified Jet Fuel Thermal Oxidation Tester facility operating at heater tube temperatures between 200 to 400 C. The resulting samples were fractionated to concentrate the soluble products and then analyzed using gas chromatographic and mass spectrometric techniques to quantify and identify the stable reaction intermediate and product specifically. Heteroatom addition showed that the major soluble products were always the same, with and without heteroatoms, but their distributions varied considerably.

  17. An Introduction to Boson-Sampling

    NASA Astrophysics Data System (ADS)

    Gard, Bryan T.; Motes, Keith R.; Olson, Jonathan P.; Rohde, Peter P.; Dowling, Jonathan P.

    2015-06-01

    Boson-sampling is a simplified model for quantum computing that may hold the key to implementing the first ever post-classical quantum computer. Boson-sampling is a non-universal quantum computer that is significantly more straightforward to build than any universal quantum computer proposed so far. We begin this chapter by motivating boson-sampling and discussing the history of linear optics quantum computing. We then summarize the boson-sampling formalism, discuss what a sampling problem is, explain why boson-sampling is easier than linear optics quantum computing, and discuss the Extended Church-Turing thesis. Next, sampling with other classes of quantum optical states is analyzed. Finally, we discuss the feasibility of building a boson-sampling device using existing technology.

  18. [Vagotonía. The medical thesis of Salvador Zubirán].

    PubMed

    Delgado, Guillermo; Estañol-Vidal, Bruno

    2012-01-01

    Salvador Zubirán submitted his thesis for his MD degree in 1923. This thesis falls within the context of the new Mexican physiological medicine and denotes the visionary character of its author. Zubirán appears here as the introducer in Mexico of the physiopharmacological approach in autonomic nervous system disorders. PMID:23227589

  19. Thesis by Publication in Education: An Autoethnographic Perspective for Educational Researchers

    ERIC Educational Resources Information Center

    Merga, Margaret K.

    2015-01-01

    Despite its growing popularity, the thesis by publication is a less conventional format for doctoral dissertations in the field of education. The author successfully undertook a thesis by publication in education from 2012, to submission in 2014. This paper draws on both the literature in the field and the experiences of the author through an

  20. Thesis by Publication in Education: An Autoethnographic Perspective for Educational Researchers

    ERIC Educational Resources Information Center

    Merga, Margaret K.

    2015-01-01

    Despite its growing popularity, the thesis by publication is a less conventional format for doctoral dissertations in the field of education. The author successfully undertook a thesis by publication in education from 2012, to submission in 2014. This paper draws on both the literature in the field and the experiences of the author through an…

  1. A Response to Shelby Gilbert's "A Study of Ogbu and Simons' Thesis"

    ERIC Educational Resources Information Center

    Hawkins, C. Matthew

    2009-01-01

    This article responds to Shelby Gilbert's "A Study of Ogbu and Simon's Thesis." The author begins by saying that he thinks that this study of examining Ogbu and Simons' thesis (to investigate school performance of Black immigrant and non-immigrant students in the United States) makes a thought-provoking contribution to overall discussions…

  2. Strategies for Finding and Selecting an Ideal Thesis or Dissertation Topic: A Review of Literature

    ERIC Educational Resources Information Center

    Lei, Simon A.

    2009-01-01

    Choosing an ideal master's thesis or doctoral dissertation topic is probably one of the most important decisions students will make while in graduate school. Some graduate students may spend a year or even longer looking for potential topics before finally selecting one for their thesis or dissertation. There are a number of successful strategies…

  3. Supporting the Thesis Writing Process of International Research Students through an Ongoing Writing Group

    ERIC Educational Resources Information Center

    Li, Linda Y.; Vandermensbrugghe, Joelle

    2011-01-01

    Evidence from research suggests writing support is particularly needed for international research students who have to tackle the challenges of thesis writing in English as their second language in Western academic settings. This article reports the development of an ongoing writing group to support the thesis writing process of international…

  4. "Breaking the Mold" in the Dissertation: Implementing a Problem-Based, Decision-Oriented Thesis Project

    ERIC Educational Resources Information Center

    Archbald, Doug

    2010-01-01

    This article offers lessons from an initiative refashioning the doctoral thesis in an education leadership program. The program serves a practitioner clientele; most are teachers and administrators. The new model for the thesis emphasizes leadership, problem solving, decision making, and organizational improvement. The former model was a…

  5. Student Engagement, Ideological Contest and Elective Affinity: The Zepke Thesis Reviewed

    ERIC Educational Resources Information Center

    Trowler, Paul

    2015-01-01

    This paper takes up issues raised in two articles by Nick Zepke and portrayed here as "the Zepke thesis". This thesis argues that the literature on, interest in and practices around student engagement in higher education have an elective affinity with neo-liberal ideology. At one level this paper counters many of the assertions that…

  6. The Focus of Supervisor Written Feedback to Thesis/Dissertation Students

    ERIC Educational Resources Information Center

    Bitchener, John; Basturkmen, Helen; East, Martin

    2010-01-01

    Written feedback on drafts of a thesis or dissertation is arguably the most important source of input on what is required or expected of thesis-writing students by the academic community. Despite its importance, relatively little is known about what type of information supervisors focus on when giving feedback. This article presents the findings…

  7. "Breaking the Mold" in the Dissertation: Implementing a Problem-Based, Decision-Oriented Thesis Project

    ERIC Educational Resources Information Center

    Archbald, Doug

    2010-01-01

    This article offers lessons from an initiative refashioning the doctoral thesis in an education leadership program. The program serves a practitioner clientele; most are teachers and administrators. The new model for the thesis emphasizes leadership, problem solving, decision making, and organizational improvement. The former model was a

  8. Strategies for Finding and Selecting an Ideal Thesis or Dissertation Topic: A Review of Literature

    ERIC Educational Resources Information Center

    Lei, Simon A.

    2009-01-01

    Choosing an ideal master's thesis or doctoral dissertation topic is probably one of the most important decisions students will make while in graduate school. Some graduate students may spend a year or even longer looking for potential topics before finally selecting one for their thesis or dissertation. There are a number of successful strategies

  9. Application of security concepts to the personnel database for the Indonesian Navy. Master's thesis

    SciTech Connect

    Wibisono, M.

    1983-09-01

    This thesis is a continuation of the study work done by Moedjiono (M.S. thesis, Naval Postgraduate School, 1982) concerning personnel database in the Indonesian Navy. It discusses the current database security and the concept of Multics (Multiplexed Information and Computing System) to propose a personnel database security model in the Indonesian Navy.

  10. Influence of Callahan's Vulnerability Thesis on Thought and Practice in Educational Administration, 1962-1992.

    ERIC Educational Resources Information Center

    Wisener, Barbara F.

    1996-01-01

    Based on extensive historical research spanning three decades, this paper discusses the influence of Callahan's vulnerability thesis on thought and practice in shaping school administration, and the resulting influence in other disciplines. Though the relevance of the vulnerability thesis and reactions to it will continue to evolve, Callahan has…

  11. Pre-Service Teachers' Beliefs about the Roles of Thesis Supervisors: A Case Study

    ERIC Educational Resources Information Center

    Tapia Carlín, Rebeca Elena

    2013-01-01

    Trainee beliefs about the roles of thesis supervisors can exert an important influence on timely and successful completion of theses. This research article explores pre-service teacher beliefs about the roles of thesis supervisors through the analysis of their learning diaries. The aim of this study is to identify ways to improve supervisory…

  12. Prepare To Meet Thy Mood? Teacher Preparation Time and the Intensification Thesis.

    ERIC Educational Resources Information Center

    Hargreaves, Andy

    This paper identifies particular propositions and claimed empirical realizations that make up the intensification thesis and examines them with regard to their educational applicability, particularly to elementary teachers' workloads. The propositions claimed within the intensification thesis indicate that intensification: (1) leads to reduced…

  13. An Analysis of Current Graduation Thesis Writing by English Majors in Independent Institute

    ERIC Educational Resources Information Center

    Han, Ying

    2014-01-01

    The paper takes 414 graduates from ZJU in 2011 and 2012, NIT as a case, analyzing the status of their writing of graduation thesis. It is found that a considerable number of students have problems in selection and report of topics, writing of each part and debating in the whole process of graduation thesis. In view of the situation, based on the…

  14. Immune selection in murine tumors. Ph.d thesis.

    PubMed

    Svane, Inge Marie; Engel, Anne-Marie

    2003-01-01

    It must be assumed that all tumor cells produce proteins which do not belong to a normal cell. These are called tumor-associated or tumor-specific antigens. In the classic immune surveillance theory it is believed that the cellular immune defense (the T-cell system) continuously discovers and eliminates newly arisen tumor cells which express such tumor-specific antigens. Since then it has been shown that one of the preconditions for the T-cell system to be able to recognize antigens is that they are presented by MHC class I histocompatibility antigens. There is a continual processing and presentation of all intracellular proteins in a cell. Thus, a tumor cell which produces an abnormal protein will also present this and thereby expose itself to being killed by cytotoxic T cells. The antigens are presented in the form of short peptides (8-9 aminoacids), which arise as a result of controlled degradation of the original proteins. The peptides thus formed are transported by specialised molecules in the so-called endogenous antigen processing and presentation pathway, and are eventually bound to and presented by MHC class I molecules. It has been shown that many tumors express less MHC class I on their surface compared to the normal tissue from which they have arisen, and also that patients with reduced immune function have an increased incidence of certain forms of cancer. It is therefore widely believed that a low MHC class I level contributes to the ability of tumor cells to avoid the T-cell-mediated immune defense. The aim of the present research project was to confirm the existence of a T-cell-mediated immune selection in primary tumors. Another of its goals was to elucidate the extent to which tumor cells with low MHC class I expression showed poor ability to present antigen, and whether the reason for this could be found in one or more of the molecular systems which participate in antigen processing and presentation. By using the chemical carcinogen 3-methylcholanthrene a total of 144 tumors were induced in immunologically normal and T-cell defective mice, respectively. It was assumed that tumors induced in normal mice would be immune selected, whilst this would not be the case for tumors from T-cell defective mice. This enabled us to work with a tumor-material where the two populations only differed in that the one part had undergone selection by a T-cell system and the other had not. Tumor induction time turned out to be shorter in immune defective than in normal mice, and the tumor frequency was higher, which might be due to the fact that in normal mice tumor growth was inhibited and in certain cases stopped by the T cells. On transplantation of the uncloned cell lines which were established from the primary tumors to immunologically normal congenic recipients, we were able to show that most of the tumors which originated from mice with a functional T-cell system, and which must therefore be assumed to have undergone selection in the primary tumor host, were not immunogenic and were therefore accepted. On the other hand, most tumors which originated from T-cell-defective mice were rejected as a sign that immunogenic tumor cells, assumed to have expressed tumor antigen, had not been eliminated in the primary tumor host. Still, we found that the ability of tumor cells to induce an immune response on transplantation was not reflected in their MHC class I expression. Both tumor lines from immunodeficient and normal mice had highly varying MHC class I levels, and contrary to expectations the highest levels were seen in tumor lines from immunologically normal mice. At the same time we found that the expression levels for the three different MHC class I molecules were the same in the individual tumor lines, which might indicate that the three genes are syn-regulated. The MHC class I mRNA content in tumors from normal mice was generally concordant with the surface level of MHC protein. Among the tumor lines from immunodeficient mice, on the other hand, we found several where there was no such agreement, which was taken to indicate that tumor cells with deviant MHC class I gene transcription had not been eliminated, in contrast to in the immunocompetent tumor hosts. The ability of tumor cells to present antigen was investigated by infecting cells with virus and thereafter assessing their ability to function as target cells for virus-specific T cells in a cytotoxic test. Their ability to do this varied considerably, but showed a correlation with their MHC class I expression. Among the transplanted tumor lines that were not able to present viral antigen, the majority were accepted, while most of the tumor lines which were rejected on transplantation possessed the ability to present virus. Closer analysis of the composition of proteasomes, heat shock protein content and TAP molecule function, which are all involved in the antigen processing system, did not immediately reveal any defects. Treatment with interferon gamma, which is known to upregulate the transcription of MHC class I and a number of other proteins which are involved in antigen presentation, showed that by far the majority of the tumor lines were able to respond normally. This was also true for the tumor lines which had deviant MHC class I gene transcription and the cells which showed poor ability to present viral antigen. We did find, however, three cell lines which did not respond to interferon gamma, and they all had defective interferon gamma-signaling, not because they did not express the interferon-receptor on the surface, but possibly on account of their lacking phosphorylation of an intracellular signal molecule, Stat1. PMID:12739251

  15. Preventing ballistic missile proliferation: Lessons from Iraq. Master`s thesis

    SciTech Connect

    Talay, B.J.

    1996-12-01

    This thesis examines the case of Iraq to assess the performance of the missile nonproliferation regime since 1970. By analyzing the methods used by Iraq to obtain missile systems and missile technology, this thesis assesses the ability of the international community to prevent ballistic missile proliferation. Understanding Iraq`s past capabilities as well as its post-war efforts to rebuild weapons programs and procurement networks, this thesis provides suggestions for improving the regime`s performance. This thesis finds that (1) prior to 1992, the Missile Technology Control Regime (MTCR) failed in its attempts to prevent proliferation; (2) the existence of the MTCR, while necessary to slow proliferation, is not sufficient to prevent proliferation; and (3) additional enforcement is needed to counter weapons of mass destruction acquisition by resourceful and determined states.

  16. Command and control in new nuclear states: Implications for stability. Master's thesis

    SciTech Connect

    Foley, D.C.

    1994-06-01

    Command and control systems of new nuclear states are likely to fail when placed under stress. This thesis will demonstrate that such failures can dramatically affect regional or international stability. Describing the current argument over the consequences of nuclear proliferation between proliferation pessimists and deterrence optimists, this thesis shows how C2 is in fact the crux of the debate. This thesis develops an analytical tool that may be applied to new nuclear states in order to classify their C2 systems and to predict when and how these evolving systems might fail. To show the tool's usefulness, it is applied to Ukraine, an important new nuclear state. This thesis also suggests several implications for U.S. foreign policy. Nuclear weapons, Command and control, Proliferation, Arms control, Regional stability, Russia, United States, Ukraine, Nuclear capabilities, U.S. Security policy.

  17. Studies of an x ray selected sample of cataclysmic variables. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Silber, Andrew D.

    1986-01-01

    Just prior to the thesis research, an all-sky survey in hard x rays with the HEAO-1 satellite and further observations in the optical resulted in a catalog of about 700 x-ray sources with known optical counterparts. This sample includes 43 cataclysmic variables, which are binaries consisting of a detached white-dwarf and a Roche lobe filling companion star. This thesis consists of studies of the x-ray selected sample of catalcysmic variables.

  18. Dissertations and Theses Roles Highlighted at Annual Meeting Session. California State University System's Thesis in Master's Degree Programs Discussed.

    ERIC Educational Resources Information Center

    Stanford, Serena W.

    1987-01-01

    The role of the thesis in graduate education at the 19 campuses of the California State University (CSU) was surveyed. It was found that a minimal number of disciplines at CSU restrict the choice of culminating the degree with the thesis. Only 15% of the programs systemwide force the thesis. The comprehensive examination was as popular as the…

  19. An Auto-management Thesis Program WebMIS Based on Workflow

    NASA Astrophysics Data System (ADS)

    Chang, Li; Jie, Shi; Weibo, Zhong

    An auto-management WebMIS based on workflow for bachelor thesis program is given in this paper. A module used for workflow dispatching is designed and realized using MySQL and J2EE according to the work principle of workflow engine. The module can automatively dispatch the workflow according to the date of system, login information and the work status of the user. The WebMIS changes the management from handwork to computer-work which not only standardizes the thesis program but also keeps the data and documents clean and consistent.

  20. Application of a neptune propulsion concept to a manned mars excursion. Master's thesis

    SciTech Connect

    Finley, C.J.

    1993-04-01

    NEPTUNE is a multimegawatt electric propulsion system. It uses a proven compact nuclear thermal rocket, NERVA, in a closed cycle with a magnetohydrodynamic (MHD) generator to power a magnetoplasmadynamic (MPD) thruster. This thesis defines constraints on an externally sourced propulsion system intended to carry out a manned Martian excursion. It assesses NEPTUNE's ability to conform to these constraints. Because an unmodified NEPTUNE system is too large, the thesis develops modifications to the system which reduce its size. The result is a far less proven, but more useful derivative of the unmodified NEPTUNE system.

  1. Testing the Protestant Ethic Thesis with Quantitative Historical Data: A Research Note

    ERIC Educational Resources Information Center

    Sanderson, Stephen K.; Abrutyn, Seth B.; Proctor, Kristopher R.

    2011-01-01

    We provide a test of the thesis that Protestantism influenced the development of modern capitalism by using quantitative data from 1500 through 1870. Results show that during this period the percentage of a country's population that is Protestant is unrelated to both its level of per capita GDP and the average rate of its annual growth in per

  2. The Quality of an Action Research Thesis in the Social Sciences

    ERIC Educational Resources Information Center

    Zuber-Skerrit, Ortrun; Fletcher, Margaret

    2007-01-01

    Purpose: The paper seeks to identify the quality characteristics of critical action research and action research theses compared to traditional research thesis writing. Design/methodology/approach: Drawing on the literature and the authors' experience with supervising and examining action research theses, the paper identifies key problem areas in

  3. Learning and Working: Elements of the Diploma Disease Thesis Examined in England and Malaysia.

    ERIC Educational Resources Information Center

    Little, Angela W.; Singh, Jasbir Sarjit

    1992-01-01

    Prospective and retrospective studies of 1,659 secondary school students and 198 workers in England and Malaysia found positive relationships between intrinsic motivations for learning and working. The "diploma disease" thesis, which posits negative relationships between examination-oriented schooling in developing nations and intrinsic work…

  4. Contesting the Limond Thesis on British Influence in Irish Education since 1922: A Comparative Perspective

    ERIC Educational Resources Information Center

    O'Donoghue, Tom; Harford, Judith

    2012-01-01

    This paper is a response to David Limond's exposition, "[An] historical culture ... rapidly, universally, and thoroughly restored"? British influence on Irish education since 1922, which appeared in "Comparative Education", Vol. 46, No. 4, November 2010, pp. 449-462. Limond's overall thesis is that "a post-colonial overhang affects Irish…

  5. Want to Improve Undergraduate Thesis Writing? Engage Students and Their Faculty Readers in Scientific Peer Review

    ERIC Educational Resources Information Center

    Reynolds, Julie A.; Thompson, Robert J., Jr.

    2011-01-01

    One of the best opportunities that undergraduates have to learn to write like a scientist is to write a thesis after participating in faculty-mentored undergraduate research. But developing writing skills doesn't happen automatically, and there are significant challenges associated with offering writing courses and with individualized mentoring.…

  6. Rapid X-Ray Variability of Active Galaxies. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Tennant, A. F., Jr.

    1983-01-01

    Active galactic nuclei are luminous sources of X-rays. The thesis that the X-rays are generated within 10 gravitational radii from the central object is tested. A very sensitive search for rapid ( 1 day) X-ray variability from active galaxies was made.

  7. What Do They Master? Perceived Benefits of the Master's Thesis Experience.

    ERIC Educational Resources Information Center

    Demb, Ada; Funk, Kelly

    1999-01-01

    Studied the learning outcomes experienced by 24 alumni of a higher education/student affairs program through interviews with the students and some faculty and support staff members. Students experienced the thesis process in eight identifiable stages, and four areas of growth were identified: personal development, skills development, content…

  8. Design of an Integrated Team Project as Bachelor Thesis in Bioscience Engineering

    ERIC Educational Resources Information Center

    Peeters, Marie-Christine; Londers, Elsje; Van der Hoeven, Wouter

    2014-01-01

    Following the decision at the KU Leuven to implement the educational concept of guided independent learning and to encourage students to participate in scientific research, the Faculty of Bioscience Engineering decided to introduce a bachelor thesis. Competencies, such as communication, scientific research and teamwork, need to be present in the

  9. Testing the Protestant Ethic Thesis with Quantitative Historical Data: A Research Note

    ERIC Educational Resources Information Center

    Sanderson, Stephen K.; Abrutyn, Seth B.; Proctor, Kristopher R.

    2011-01-01

    We provide a test of the thesis that Protestantism influenced the development of modern capitalism by using quantitative data from 1500 through 1870. Results show that during this period the percentage of a country's population that is Protestant is unrelated to both its level of per capita GDP and the average rate of its annual growth in per…

  10. Reading in Preparation for Writing a PhD Thesis: Case Studies of Experiences

    ERIC Educational Resources Information Center

    Kwan, Becky S. C.

    2009-01-01

    The paper presents stories of how a group of doctoral students chose the key disciplinary literature that they read in preparation for their thesis-undertaking (RT). The stories were analyzed in light of current understanding of literature reviewing as a situated practice and theory of doctoral education as socio-cognitive apprenticeship. As the…

  11. "On Course" for Supporting Expanded Participation and Improving Scientific Reasoning in Undergraduate Thesis Writing

    ERIC Educational Resources Information Center

    Dowd, Jason E.; Roy, Christopher P.; Thompson, Robert J., Jr.; Reynolds, Julie A.

    2015-01-01

    The Department of Chemistry at Duke University has endeavored to expand participation in undergraduate honors thesis research while maintaining the quality of the learning experience. Accomplishing this goal has been constrained by limited departmental resources (including faculty time) and increased diversity in students' preparation to…

  12. The Quality of an Action Research Thesis in the Social Sciences

    ERIC Educational Resources Information Center

    Zuber-Skerrit, Ortrun; Fletcher, Margaret

    2007-01-01

    Purpose: The paper seeks to identify the quality characteristics of critical action research and action research theses compared to traditional research thesis writing. Design/methodology/approach: Drawing on the literature and the authors' experience with supervising and examining action research theses, the paper identifies key problem areas in…

  13. The Experienced Meaning of Working with a PhD Thesis

    ERIC Educational Resources Information Center

    Stubb, Jenni; Pyhalto, Kirsi; Lonka, Kirsti

    2012-01-01

    There is a variation in terms of how researchers perceive the nature of research work. Previous research has mainly looked at the members of academia who already have established themselves in the scholarly community. We aimed at exploring the ways in which doctoral students perceived their thesis project and further, the relations of such…

  14. Senior Thesis Camp: Partnerships in Practice at the University of Notre Dame

    ERIC Educational Resources Information Center

    Smith, Cheri; Kayongo, Jessica

    2011-01-01

    The article describes the process of developing a week long thesis camp for seniors in the College of Arts and Letters at the University of Notre Dame. The library and other university groups worked together to provide the students with workshops, ready access to research assistance, and dedicated space to work on their theses. This inaugural…

  15. Curricular Goals and Personal Goals in Master's Thesis Projects: Dutch Student-Supervisor Dyads

    ERIC Educational Resources Information Center

    de Kleijn, Renske A. M.; Meijer, Paulien C.; Brekelmans, Mieke; Pilot, Albert

    2013-01-01

    To be effective, feedback should be goal-related. In order to better understand goal-related feedback in Master's thesis projects, the present study explores the goals of supervisors and students in supervision dyads and similarities and differences within and between these dyads. Twelve supervisors and students were interviewed, and their goals…

  16. Master's Thesis Projects: Student Perceptions of Supervisor Feedback

    ERIC Educational Resources Information Center

    de Kleijn, Renske A. M.; Mainhard, M. Tim; Meijer, Paulien C.; Brekelmans, Mieke; Pilot, Albert

    2013-01-01

    A growing body of research has investigated student perceptions of written feedback in higher education coursework, but few studies have considered feedback perceptions in one-on-one and face-to-face contexts such as master's thesis projects. In this article, student perceptions of feedback are explored in the context of the supervision of…

  17. Why Should I Present a Thesis on Computer Assisted Ndjebbana on DVD?

    ERIC Educational Resources Information Center

    Auld, Glenn

    This paper justifies the presentation of a Ph.D. thesis about computer-assisted Ndjebbana on a digital video disc (DVD). Ndjebbana is a language spoken by 200 Kunibidji, the indigenous landowners of Maningrida on the north coast of Arnhem Land, Australia. Simple digital talking books about the community were created in Ndjebbana and then presented…

  18. Edgeware Security Risk Management: A Three Essay Thesis on Cloud, Virtualization and Wireless Grid Vulnerabilities

    ERIC Educational Resources Information Center

    Brooks, Tyson T.

    2013-01-01

    This thesis identifies three essays which contribute to the foundational understanding of the vulnerabilities and risk towards potentially implementing wireless grid Edgeware technology in a virtualized cloud environment. Since communication networks and devices are subject to becoming the target of exploitation by hackers (e.g. individuals who

  19. Want to Improve Undergraduate Thesis Writing? Engage Students and Their Faculty Readers in Scientific Peer Review

    ERIC Educational Resources Information Center

    Reynolds, Julie A.; Thompson, Robert J., Jr.

    2011-01-01

    One of the best opportunities that undergraduates have to learn to write like a scientist is to write a thesis after participating in faculty-mentored undergraduate research. But developing writing skills doesn't happen automatically, and there are significant challenges associated with offering writing courses and with individualized mentoring.

  20. Response to Hewes's "The Influence of Communication Processes on Group Outcomes: Antithesis and Thesis"

    ERIC Educational Resources Information Center

    Gouran, Dennis S.

    2009-01-01

    This article presents the author's response to Professor Hewes's "The Influence of Communication Processes on Group Outcomes: Antithesis and Thesis." The author believes that Hewes could have been more helpful to the reader and to those who are apt to find inspiration in the steps he has taken in his essay to promote a "return to basic theorizing…

  1. Diversity in Collaborative Research Communities: A Multicultural, Multidisciplinary Thesis Writing Group in Public Health

    ERIC Educational Resources Information Center

    Guerin, Cally; Xafis, Vicki; Doda, Diana V.; Gillam, Marianne H.; Larg, Allison J.; Luckner, Helene; Jahan, Nasreen; Widayati, Aris; Xu, Chuangzhou

    2013-01-01

    Writing groups for doctoral students are generally agreed to provide valuable learning spaces for Ph.D. candidates. Here an academic developer and the eight members of a writing group formed in a Discipline of Public Health provide an account of their experiences of collaborating in a multicultural, multidisciplinary thesis writing group. We…

  2. The Two-Semester Thesis Model: Emphasizing Research in Undergraduate Technical Communication Curricula

    ERIC Educational Resources Information Center

    Ford, Julie Dyke; Bracken, Jennifer L.; Wilson, Gregory D.

    2009-01-01

    This article addresses previous arguments that call for increased emphasis on research in technical communication programs. Focusing on the value of scholarly-based research at the undergraduate level, we present New Mexico Tech's thesis model as an example of helping students develop familiarity with research skills and methods. This two-semester…

  3. Design of an Integrated Team Project as Bachelor Thesis in Bioscience Engineering

    ERIC Educational Resources Information Center

    Peeters, Marie-Christine; Londers, Elsje; Van der Hoeven, Wouter

    2014-01-01

    Following the decision at the KU Leuven to implement the educational concept of guided independent learning and to encourage students to participate in scientific research, the Faculty of Bioscience Engineering decided to introduce a bachelor thesis. Competencies, such as communication, scientific research and teamwork, need to be present in the…

  4. The "Write" Skills and More: A Thesis Writing Group for Doctoral Students

    ERIC Educational Resources Information Center

    Ferguson, Therese

    2009-01-01

    Writing groups facilitate the development of research students' written communication skills, which are critical for the competent preparation of theses and publications. This paper describes a Thesis Writing Group for social science doctoral students. Participants indicated that the group not only served a practical role, providing an impetus for…

  5. Increasing the Number of Feminist Scientists: Why Feminist Aims Are Not Served by the Underdetermination Thesis

    ERIC Educational Resources Information Center

    Intemann, Kristen

    2008-01-01

    Recent feminist philosophers of science have argued that feminist values can contribute to rational decisions about which scientific theories to accept. On this view, increasing the number of feminist scientists is important for ensuring rational and objective theory acceptance. The Underdetermination Thesis has played a key role in arguments for…

  6. The Experienced Meaning of Working with a PhD Thesis

    ERIC Educational Resources Information Center

    Stubb, Jenni; Pyhalto, Kirsi; Lonka, Kirsti

    2012-01-01

    There is a variation in terms of how researchers perceive the nature of research work. Previous research has mainly looked at the members of academia who already have established themselves in the scholarly community. We aimed at exploring the ways in which doctoral students perceived their thesis project and further, the relations of such

  7. The Usefulness of an Intensive Preparatory Course for EAL Thesis Writers

    ERIC Educational Resources Information Center

    Manalo, Emmanuel

    2006-01-01

    Over the past decade, most Australasian universities have experienced significant increases in numbers of international and new immigrant students, including those enrolling at the graduate level. This article describes a non-credit, intensive course for English as an additional language (EAL) students preparing to undertake a thesis or

  8. [High frequency of plagiarism in medical thesis from a Peruvian public university].

    PubMed

    Saldaa-Gastulo, J Jhan C; Quezada-Osoria, C Claudia; Pea-Oscuvilca, Amrico; Mayta-Tristn, Percy

    2010-03-01

    An observational study was conducted to describe the presence of plagiarism in medical thesis in 2008 performed at a public university in Peru. Search for plagiarism in 33 thesis introductions using a Google search algorithm, characterizes of the study type and we search in electronic form if the thesis mentor have published articles in scientific journals. We found evidence of plagiarism in 27/33 introductions, 37.3% (171/479) of all the paragraphs analyzed had some degree of plagiarism, literal plagiarism was the most frequent (20/27) and journals were the most common sources of plagiarism (19/27). The characteristics of the studies were observational (32/33), cross-sectional (30/33), descriptive (25/33) and retrospective (19/33). None of the authors had published in a scientific journal, and only nine of his tutors of them had at least one publication. No association was found between the characteristics of the thesis and the presence of plagiarism. In conclusion, we found a high frequency of plagiarism in theses analyzed. Is responsibility of medical schools take the necessary actions to detect and avoid plagiarism among their students. PMID:21072452

  9. Thesis and Dissertation Writing: An Examination of Published Advice and Actual Practice.

    ERIC Educational Resources Information Center

    Paltridge, Brian

    2002-01-01

    Explores the extent to which published advice on the organization and structure of theses and dissertations concurs with what happens in actual practice. Examines guides and handbooks that focus on thesis and dissertation writing and postgraduate research. Found that only a few books devoted a substantial amount of space to this topic. Discusses

  10. Contesting the Limond Thesis on British Influence in Irish Education since 1922: A Comparative Perspective

    ERIC Educational Resources Information Center

    O'Donoghue, Tom; Harford, Judith

    2012-01-01

    This paper is a response to David Limond's exposition, "[An] historical culture ... rapidly, universally, and thoroughly restored"? British influence on Irish education since 1922, which appeared in "Comparative Education", Vol. 46, No. 4, November 2010, pp. 449-462. Limond's overall thesis is that "a post-colonial overhang affects Irish

  11. Edgeware Security Risk Management: A Three Essay Thesis on Cloud, Virtualization and Wireless Grid Vulnerabilities

    ERIC Educational Resources Information Center

    Brooks, Tyson T.

    2013-01-01

    This thesis identifies three essays which contribute to the foundational understanding of the vulnerabilities and risk towards potentially implementing wireless grid Edgeware technology in a virtualized cloud environment. Since communication networks and devices are subject to becoming the target of exploitation by hackers (e.g. individuals who…

  12. Unblocking Occluded Genres in Graduate Writing: Thesis and Dissertation Support Services at North Carolina State University

    ERIC Educational Resources Information Center

    Autry, Meagan Kittle; Carter, Michael

    2015-01-01

    In 2013, the Graduate School at North Carolina State University launched Thesis and Dissertation Support Services, a rhetorical, genre-based approach to assisting students with their graduate writing. Through a description of the program's founding, goals, and first year of services, we summarize this genre-based approach that is informed by the…

  13. "On Course" for Supporting Expanded Participation and Improving Scientific Reasoning in Undergraduate Thesis Writing

    ERIC Educational Resources Information Center

    Dowd, Jason E.; Roy, Christopher P.; Thompson, Robert J., Jr.; Reynolds, Julie A.

    2015-01-01

    The Department of Chemistry at Duke University has endeavored to expand participation in undergraduate honors thesis research while maintaining the quality of the learning experience. Accomplishing this goal has been constrained by limited departmental resources (including faculty time) and increased diversity in students' preparation to

  14. Increasing the Number of Feminist Scientists: Why Feminist Aims Are Not Served by the Underdetermination Thesis

    ERIC Educational Resources Information Center

    Intemann, Kristen

    2008-01-01

    Recent feminist philosophers of science have argued that feminist values can contribute to rational decisions about which scientific theories to accept. On this view, increasing the number of feminist scientists is important for ensuring rational and objective theory acceptance. The Underdetermination Thesis has played a key role in arguments for

  15. Adaptive Research Supervision: Exploring Expert Thesis Supervisors' Practical Knowledge

    ERIC Educational Resources Information Center

    de Kleijn, Renske A. M.; Meijer, Paulien C.; Brekelmans, Mieke; Pilot, Albert

    2015-01-01

    Several researchers have suggested the importance of being responsive to students' needs in research supervision. Adapting support strategies to students' needs in light of the goals of a task is referred to as "adaptivity." In the present study, the practice of adaptivity is explored by interviewing expert thesis supervisors…

  16. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-11-15

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 219 Tuesday, November 15, 1994 Administration on Aging See Aging Administration Agency for International... their contents; copyright restoration procedures, 58787-58789 Customs Service RULES Petitions...

  17. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-10-07

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 194 Friday, October 7, 1994 Agricultural Marketing Service RULES Direct final rulemaking use; policy... contents entry incorrectly appeared under Food and Nutrition Service.] Libyan sanctions...

  18. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-10-25

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 205 Tuesday, October 25, 1994 Agricultural Marketing Service RULES Kiwifruit grown in California, 53563-53565... carbon monoxide content; report availability, 53650 Premerger notification waiting periods;...

  19. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-25

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 164 Thursday, August 25, 1994 Agency for Toxic Substances and Disease Registry NOTICES Meetings: Hanford, WA... International Trade Administration NOTICES Antidumping: Electroluminescent high information content flat...

  20. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-08

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 130 Friday, July 8, 1994 Agriculture Department NOTICES Agency information collection activities under OMB... inadvertently omitted in that issue's table of contents.] Employment and Training Administration...

  1. 34 CFR Plans - Contents

    Code of Federal Regulations, 2010 CFR

    1997-07-01

    ... 34 Education 2 1997-07-01 1997-07-01 false Contents Plans State Plans ASSISTANCE TO STATES FOR THE...-General § 300.111 Content of plan. Each State plan must contain the provisions required in §§ 300.121-300.154. State Plans—Contents...

  2. Content-Based Instruction.

    ERIC Educational Resources Information Center

    CATESOL Journal, 1992

    1992-01-01

    This English-as-a-Second Language (ESL) journal periodical devotes entire issues to specific issues. The theme of this issue is "Content-Base Instruction." Articles include: "Syllabus Design in Content-Based Instruction" (David E. Eskey); "How Relevant Is Relevance?: An Examination of Student Needs, Interests, and Motivation in the Content-Based…

  3. 67 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2002-05-31

    ... From the Federal Register Online via the Government Publishing Office #0; #0; #0; CONTENTS #0; #0...;/&thnsp;Contents#0;#0; ] Agency for International Development NOTICES Agency information collection... subscribe to the Federal Register Table of Contents LISTSERV electronic mailing list, go to...

  4. 67 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2002-03-18

    ... From the Federal Register Online via the Government Printing Office #0; #0; #0; CONTENTS #0; #0...;/&thnsp;Contents#0;#0; ] Editorial Note: In the Federal Register of March 15, 2002, there were numerous page number errors under some Proposed Rule headings. A corrected Table of Contents...

  5. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-05-10

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 89....; nutrient content claims; correction, 24039 Nutrient content claims; ``healthy'' definition, 24232-24250... page 22953 in the FEDERAL REGISTER of May 4, 1994 was not included in that issue's table of...

  6. Naturalising Representational Content

    PubMed Central

    Shea, Nicholas

    2014-01-01

    This paper sets out a view about the explanatory role of representational content and advocates one approach to naturalising content – to giving a naturalistic account of what makes an entity a representation and in virtue of what it has the content it does. It argues for pluralism about the metaphysics of content and suggests that a good strategy is to ask the content question with respect to a variety of predictively successful information processing models in experimental psychology and cognitive neuroscience; and hence that data from psychology and cognitive neuroscience should play a greater role in theorising about the nature of content. Finally, the contours of the view are illustrated by drawing out and defending a surprising consequence: that individuation of vehicles of content is partly externalist. PMID:24563661

  7. Two arm robot path planning in a static environment using polytopes and string stretching. Thesis

    NASA Technical Reports Server (NTRS)

    Schima, Francis J., III

    1990-01-01

    The two arm robot path planning problem has been analyzed and reduced into components to be simplified. This thesis examines one component in which two Puma-560 robot arms are simultaneously holding a single object. The problem is to find a path between two points around obstacles which is relatively fast and minimizes the distance. The thesis involves creating a structure on which to form an advanced path planning algorithm which could ideally find the optimum path. An actual path planning method is implemented which is simple though effective in most common situations. Given the limits of computer technology, a 'good' path is currently found. Objects in the workspace are modeled with polytopes. These are used because they can be used for rapid collision detection and still provide a representation which is adequate for path planning.

  8. Publishing a Master’s Thesis: A Guide for Novice Authors

    PubMed Central

    Resta, Robert G.; McCarthy Veach, Patricia; Charles, Sarah; Vogel, Kristen; Blase, Terri

    2010-01-01

    Publication of original research, clinical experiences, and critical reviews of literature are vital to the growth of the genetic counseling field, delivery of genetic counseling services, and professional development of genetic counselors. Busy clinical schedules, lack of time and funding, and training that emphasizes clinical skills over research skills may make it difficult for new genetic counselors to turn their thesis projects into publications. This paper summarizes and elaborates upon a presentation aimed at de-mystifying the publishing process given at the 2008 National Society of Genetic Counselors Annual Education Conference. Specific topics include familiarizing prospective authors, particularly genetic counseling students, with the basics of the publication process and related ethical considerations. Former students’ experiences with publishing master’s theses also are described in hopes of encouraging new genetic counselors to submit for publication papers based on their thesis projects. PMID:20076994

  9. Protestant Clergy and the Culture Wats: An Empirical Test of Hunter’s Thesis

    PubMed Central

    Uecker, Jeremy E.; Lucke, Glenn

    2013-01-01

    This study instead focuses on culture wars among religious elites—clergy—and tests three aspects of the culture wars thesis: (1) whether cultural wars exist at all among religious elites, (2) whether clergy attitudes are polarized on these issues, and (3) whether religious authority or religious affiliation is more salient in creating culture wars cleavages. Using data from a large random sample of Protestant clergy, we find a substantial amount of engagement in culture wars by all types of Protestant clergy. The amount of polarization is more attributable to views of religious authority (i.e., biblical inerrancy) than to religious tradition. Moreover, polarization among clergy is somewhat more evident on culture wars issues than on other social and political issues. These findings are generally supportive of the culture wars thesis and should help return examinations of culture wars back to where they were originally theorized to be waged: among elites. PMID:24072933

  10. United States Marine Corps mobile electric power optimization model. Master's thesis

    SciTech Connect

    Samples, D.W.

    1992-09-01

    This thesis develops a methodology that can be used to determine the type and quantity of mobile electric power generators necessary to meet current and future total Marine Corps electrical demand. This determination is a major part of the formal Marine Corps Mobile Electric Power Requirements Analysis. It is conducted in two steps. The first step involves application of the Army's Belvoir Generator Allocation Program (BGAP), a computer program that determines individual unit generator requirements, to individual Marine Corps units. The second step uses the BGAP results as input and determines the total force generator requirements and allocations over time using the Marine Corps Mobile Electric Power Optimization Model (MCMEPOM), a new model developed in this thesis. MCMEPOM is a non-consumptive demand, multiperiod linear programming model implemented with the General Algebraic Modeling System (GAMS).

  11. India`s nuclear weapons posture: The end of ambiguity. Master`s thesis

    SciTech Connect

    Davis, S.D.

    1996-12-01

    This thesis examines the future of India`s nuclear weapons posture. Since testing a nuclear device in 1974, India been able to produce weapons material within its civilian nuclear power program. Despite having this nuclear weapons capability, India prefers to maintain an ambiguous nuclear posture. New pressures in the post-cold war era -- the loss of the Soviet Union as a strategic ally, the indefinite extension of the nuclear nonproliferation treaty, the rise of Hindu nationalism, and India`s growing participation in the global economy -- have the potential to derail India`s current nuclear policy. This thesis identifies the domestic and international pressures on India, and assesses the prospects for India to retain its ambiguous policy, renounce the nuclear option, or assemble an overt nuclear arsenal.

  12. Light-fighter communication - on today's chemical battlefield. Master's thesis, August 1987-June 1988

    SciTech Connect

    Hale, T.J.

    1988-06-03

    The format of the thesis is as follows: Chapter 1 is an introduction; Chapter 2 surveys the history of chemical warfare and the evolution of the Chemical Warfare Service (CWS); Chapter 3 reviews the Soviet offensive use of chemicals; Chapter 4 presents a fictional scenario to illustrate the communications problems of the light fighter under combat conditions in a tropical climate; and Chapter 5 assimilates key-scenario communication events with applicable governmental and field studies conducted since 1969. The thesis scenario logically discusses and portrays today's chemical equipment and NBC communication training. The scenario's intent is to challenge a leader to analyze how a unit could be properly trained and maneuvered in today's low-intensity chemical battlefield.

  13. Canada: the decision to procure nuclear-attack submarines and its significance for NATO. Master's thesis

    SciTech Connect

    Guillory, T.

    1988-09-01

    In June 1987 the Canadian government announced plans to procure 10 to 12 nuclear attack submarines (SSNs). The evidence suggests that, for some Canadians, a primary purpose for this submarine program may not be to enhance the security of NATO, but instead to assert Canada's sovereignty, principally against the United States, in the Arctic region. The thesis discusses this decision and its possible implications for the security of North America and NATO. It is argued that the United States must continue to have unimpeded access to the Arctic region to counter the ever-increasing threat posed by Soviet nuclear ballistic missile submarines (SSBNs). Finally, the thesis suggests a possible solution to the current sovereignty debate and a potential strategy for employing these SNN to enhance the security of North America and NATO as a whole.

  14. Limited war, escalation control, and command, control and communications. Master's thesis

    SciTech Connect

    Waltensperger, G.M.

    1986-03-01

    This thesis is an unclassified examination from a Western perspective of the concepts of limited war, and escalation control in the context of nuclear conflict and command, control and communications (C3). Limited war and escalation control are intrinsically related. To better understand the relationships betweenlimited war, escalation control and C3, as applied to the question of protracted nuclear war, this thesis considers strategic control from a cybernetic view, using a widely accepted model for the command and control process. US strategic C3 systems are discussed from the perspective of limiting war and controlling escalation. Requirements such as, a viable National Command Authority, effective command and control, positive/negative control, damage control/assessment, a shared concept of limited war, civil defense, and a mechanism to terminate conflict are presented as necessary to control escalation, thus, limiting war.

  15. Diabatically driven mesoscale vortex in the lee of the tibetan plateau. Doctoral thesis

    SciTech Connect

    Wang, W.

    1992-01-01

    Mesoscale cyclonic vortices at the eastern and southeastern flanks of the Tibetan Plateau, known as southwest vortices, are one of the most important types of rain-producing systems in China during the warm season. The thesis investigates the southwest vortex problem through a case-study approach, and focuses on the efect of the diabatic heating of possible formation and development of the vortex.

  16. Increasing the number of feminist scientists: why feminist aims are not served by the Underdetermination Thesis

    NASA Astrophysics Data System (ADS)

    Intemann, Kristen

    2008-11-01

    Recent feminist philosophers of science have argued that feminist values can contribute to rational decisions about which scientific theories to accept. On this view, increasing the number of feminist scientists is important for ensuring rational and objective theory acceptance. The Underdetermination Thesis has played a key role in arguments for this view [Anderson (1995) Hypatia 10(3), 50 84; Hankinson Nelson (1990) Who knows? From Quine to a feminist empiricism. Temple University Press, Philadelphia; Longino (1990) Science as social knowledge. Princeton University Press, Princeton; Longino (2002) The fate of knowledge. Princeton University Press, Princeton; Kourany (2003) Philosophy of Science 70, 1 14]. This thesis is alleged to open an argumentative “gap” between evidence and theory acceptance and provide a rationale for filling the gap with feminist values. While I agree with the conclusion that feminist values can contribute to rational decisions about which theories to accept, I argue that the Underdetermination Thesis cannot support this claim. First, using earlier arguments [Laudan (1990) in: R. Giere (ed) Minnesota studies in the philosophy of science, vol 14, pp 267 297; Slezak (1991) International Studies in Philosophy of Science 5, 241 256; Pinnick (1994) Philosophy of Science 61, 664 657] I show that Underdetermination cannot, by itself, establish that feminist values should fill the gap in theory acceptance. Secondly, I argue that the very use of the Underdetermination Thesis concedes that feminist values are extra-scientific, a-rational, factors in theory acceptance. This concession denies feminists grounds to explain why their values contribute to rational scientific reasoning. Finally, I propose two alternative ways to explain how feminist values can contribute to rational theory acceptance that do not rely on Underdetermination.

  17. Framework for understanding the Strategic Defense Initiatives' software debates. Master's thesis

    SciTech Connect

    Adams, R.C.

    1990-06-01

    On March 23, 1983, then-President Ronald Reagan challenged a group of engineers and scientists to make nuclear weapons impotent and obsolete. This challenge led to the beginning of a new era in space technology and strategic defense, thus creating the Strategic Defense Initiative (SDI), better known as Star Wars. By 1984, several studies had begun to show that software in conjunction with Battle Management/Command, Control, and Communications techniques would play a major role in determining the effectiveness of the SDI. The results from these studies caused numerous controversial debates on the reliability, dependability, and trustworthiness of the software. This thesis provides a framework for understanding the complexities of the SDI software and points out some of the major issues involved in the software debates. The structure for this thesis is based on presenting the opinions of various computer scientists and engineers, indicating the issues that are controversial and those that have been defined as a necessity for the SDI program. One of the major highlights is the SDI summary chart that provides the reader with a very brief narrative of each individuals' opinion on the software issues discussed in this thesis.

  18. Science as an ally of religion: a Muslim appropriation of 'the conflict thesis'.

    PubMed

    Yalcinkaya, M Alper

    2011-06-01

    John W. Draper's History of the Conflict between Religion and Science (1874) is commonly regarded as the manifesto of the 'conflict thesis'. The superficiality of this thesis has been demonstrated in recent studies, but to read Draper's work only as a text on 'science versus religion' is to miss half of its significance, as it also involved evaluations of individual religions with respect to their attitudes towards science. Due to Draper's favourable remarks on Islam, the Ottoman author Ahmed Midhat translated his work into Turkish, and published it along with his own comments on Draper's arguments. Midhat interpreted Islam using the cues provided by Draper, and portrayed it as the only religion compatible with science. While his Christian readers condemned Draper for his approach to Islam, Midhat transformed the 'conflict thesis' into a proclamation that Islam and science were allies in opposition to Christian encroachment on the Ottoman Empire. This paper analyses Midhat's appropriation of Draper's work and compares it to the reaction of Draper's Christian readers. It discusses the context that made an alliance between Islam and science so desirable for Midhat, and emphasizes the impact of the historico-geographical context on the encounters between and representations of science and religion. PMID:21879604

  19. Writing a bachelor thesis generates transferable knowledge and skills useable in nursing practice.

    PubMed

    Lundgren, Solveig M; Robertsson, Barbro

    2013-11-01

    Generic skills or transferable skills have been discussed in terms of whether or not skills learned in one context can be transferred into another context. The current study was aimed to explore nurses' self-perceptions of the knowledge and skills they had obtained while writing a Bachelor's thesis in nursing education, their experience of the extent of transfer and utilization in their current work. Responding nurses (N=42) had all worked from 1 to 1.5 years after their final examination and had completed a questionnaire that was structured with open-ended questions. Only five nurses reported that they were unable to use any of the knowledge and skills they had obtained from writing a thesis. A majority of the nurses (37/42) could give many examples of the practical application of the skills and knowledge they had obtained. Our findings indicate that writing a thesis as part of an undergraduate degree program plays a major role in the acquisition and development of knowledge and skills which can subsequently be transferred into and utilized in nursing practice. PMID:23141688

  20. A Cross-Country Study on Research Students' Perceptions of the Role of Supervision and Cultural Knowledge in Thesis Development

    ERIC Educational Resources Information Center

    McGinty, Suzanne Claire; Koo, Yew Lie; Saeidi, Mahnaz

    2010-01-01

    This paper presents preliminary findings from a research study in Australia, Malaysia and Iran on students' perceptions of the roles of supervisor and student in the production of their thesis and the contribution of their cultural knowledge to thesis development. The 360 respondents who answered an online survey were studying for their Master's

  1. Learning Cultures in Travel and Tourism: A Critique of Manuela du Bois-Reymond's Trendsetter Learner Thesis

    ERIC Educational Resources Information Center

    Morrison, Andrew

    2011-01-01

    This article aims to contribute to the discussion surrounding Manuela du Bois-Reymond's important "trendsetter learner" thesis and, in so doing, to join the wider debate about post-compulsory learning cultures. The article outlines the trendsetter learner thesis and then considers recent criticisms that it has attracted. While the author concurs…

  2. Final Thesis Models in European Teacher Education and Their Orientation towards the Academy and the Teaching Profession

    ERIC Educational Resources Information Center

    Råde, Anders

    2014-01-01

    This study concerns different final thesis models in the research on teacher education in Europe and their orientation towards the academy and the teaching profession. In scientific journals, 33 articles support the occurrence of three models: the portfolio model, with a mainly teaching-professional orientation; the thesis model, with a mainly…

  3. 7 CFR 3402.6 - Overview of the special international study and/or thesis/dissertation research travel allowance.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... thesis/dissertation research travel allowance. 3402.6 Section 3402.6 Agriculture Regulations of the... Overview of the special international study and/or thesis/dissertation research travel allowance. (a) For.../dissertation research travel allowance, the Project Director must apply to HEP for a supplemental grant...

  4. 7 CFR 3402.6 - Overview of the special international study and/or thesis/dissertation research travel allowance.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... thesis/dissertation research travel allowance. 3402.6 Section 3402.6 Agriculture Regulations of the... Overview of the special international study and/or thesis/dissertation research travel allowance. (a) For.../dissertation research travel allowance, the Project Director must apply to HEP for a supplemental grant...

  5. 7 CFR 3402.6 - Overview of the special international study and/or thesis/dissertation research travel allowance.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... thesis/dissertation research travel allowance. 3402.6 Section 3402.6 Agriculture Regulations of the... Overview of the special international study and/or thesis/dissertation research travel allowance. (a) For.../dissertation research travel allowance, the Project Director must apply to HEP for a supplemental grant...

  6. A Cross-Country Study on Research Students' Perceptions of the Role of Supervision and Cultural Knowledge in Thesis Development

    ERIC Educational Resources Information Center

    McGinty, Suzanne Claire; Koo, Yew Lie; Saeidi, Mahnaz

    2010-01-01

    This paper presents preliminary findings from a research study in Australia, Malaysia and Iran on students' perceptions of the roles of supervisor and student in the production of their thesis and the contribution of their cultural knowledge to thesis development. The 360 respondents who answered an online survey were studying for their Master's…

  7. Final Thesis Models in European Teacher Education and Their Orientation towards the Academy and the Teaching Profession

    ERIC Educational Resources Information Center

    Rde, Anders

    2014-01-01

    This study concerns different final thesis models in the research on teacher education in Europe and their orientation towards the academy and the teaching profession. In scientific journals, 33 articles support the occurrence of three models: the portfolio model, with a mainly teaching-professional orientation; the thesis model, with a mainly

  8. 7 CFR 3402.6 - Overview of the special international study and/or thesis/dissertation research travel allowance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... thesis/dissertation research travel allowance. 3402.6 Section 3402.6 Agriculture Regulations of the.../dissertation research travel allowance. (a) For each USDA Graduate Fellow who desires to be considered for a special international study or thesis/dissertation research travel allowance, the Project Director...

  9. 7 CFR 3402.6 - Overview of the special international study and/or thesis/dissertation research travel allowance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... thesis/dissertation research travel allowance. 3402.6 Section 3402.6 Agriculture Regulations of the... Overview of the special international study and/or thesis/dissertation research travel allowance. (a) For.../dissertation research travel allowance, the Project Director must apply to HEP for a supplemental grant...

  10. The pioneer woman's view of migraine: Elizabeth Garrett Anderson's thesis "Sur la migraine".

    PubMed

    Wilkinson, M; Isler, H

    1999-01-01

    This is a presentation of a doctoral thesis of 1870. The author was English but the thesis and the examinations were in French. Elizabeth Garrett Anderson, usually referred to as E.G.A., was the first woman in Britain to obtain the title of M.D., but not the first in Europe. Nadeshda Prokofevna Suslova, a Russian, received her M.D. in 1867 in Zurich, the most liberal university at that time, soon to be flooded by female students from Russia. E.G.A. had been applying to the few possible European universities but she settled for Paris after the Empress Eugenie had decided that she should be accepted there. This meant that she could succeed without having to be a Paris resident, just by writing a thesis and passing a series of examinations presided over by Paul Broca. This was important as she was already conducting private and dispensary practice, and could not find a locum (she insisted on a woman). E.G.A. had suffered many setbacks, for being a woman, as such being unacceptable in dissection rooms and operating theatres, and generally in a professional career where women were unheard of. She was finally permitted to receive her medical diploma from the Worshipful Society of Apothecaries of London. She wrote about her thesis: "I have chosen Headache as its subject. I had to find a subject which could be well studied without post-mortem observations, of which I can have but very few in either private or dispensary practice; and I wished also to take a large subject, one that demanded some insight into the harmony that exists between the main physiological functions." Marcia Wilkinson (M.W.), who worked in the Elizabeth Garrett Anderson Hospital in London for 35 years, heard there of E.G.A.'s thesis on migraine and sent for it from Paris. In 1966 she translated it into English from the original French, being interested both in the subject and in the person of this resolute and lucid woman. When H. Isler found the French thesis in the British Library he intended to translate it but, after discussion, we decided on a joint effort (95% of the translation is by M.W.; very few details were changed, and some footnotes added for better understanding). We think that E.G.A.'s text is a classic, showing profound understanding, sound practical advice, and also, in its theoretical part, the limits of neurophysiological knowledge in Paris when Brown-Sequard was "charge des cours" there. We may add that in her various examinations she had to answer questions, in French, on the use of footprints by the police, the general nature of fishes, toxic fishes, electric fishes, cod liver oil, and the secretion of tears. She earned much applause from the public, which consisted of male French students, and the overt appreciation of Paul Broca, head examiner, and Dr Wurtz, the Dean of the Faculte de Médecine. The impact of her thesis in the 19th century was modest. It appears to be rather marginal in the German literature of the early 20th century, but it has imprinted the management of migraine at the City of London Migraine Clinic in the last thirty years. The importance of nutrition, regular meals, regular habits, the need to supplement analgesics with antiemetics, and the treatment of the attack with rest, and great quantities of hot tea, were certainly related to E.G.A.'s doctrine. The internationally prevailing recommendation to give antiemetics, and then only analgesics, as well as the combination of both in one tablet, may thus be traced back to E.G.A. via the teachings of M.W. and Nat Blau. PMID:10099853

  11. Multimedia content description framework

    NASA Technical Reports Server (NTRS)

    Bergman, Lawrence David (Inventor); Kim, Michelle Yoonk Yung (Inventor); Li, Chung-Sheng (Inventor); Mohan, Rakesh (Inventor); Smith, John Richard (Inventor)

    2003-01-01

    A framework is provided for describing multimedia content and a system in which a plurality of multimedia storage devices employing the content description methods of the present invention can interoperate. In accordance with one form of the present invention, the content description framework is a description scheme (DS) for describing streams or aggregations of multimedia objects, which may comprise audio, images, video, text, time series, and various other modalities. This description scheme can accommodate an essentially limitless number of descriptors in terms of features, semantics or metadata, and facilitate content-based search, index, and retrieval, among other capabilities, for both streamed or aggregated multimedia objects.

  12. Hydroponics: Content and Rationale

    ERIC Educational Resources Information Center

    Ernst, Jeremy V.; Busby, Joe R.

    2009-01-01

    Technology education has the means of becoming the catalyst for integrated content and curricula, especially in core academic areas, such as science and mathematics, where it has been found difficult to incorporate other subject matter. Technology is diverse enough in nature that it can be addressed by a variety of content areas, serving as a true…

  13. 34 CFR Educational - Contents

    Code of Federal Regulations, 2011 CFR

    1997-07-01

    ... 34 Education 2 1997-07-01 1997-07-01 false Contents Educational Local Educational Agency Applications ASSISTANCE TO STATES FOR THE EDUCATION OF CHILDREN WITH DISABILITIES State Plans and Local...) Both. (b) (Authority: 20 U.S.C. 1414(b)(2)) Local Educational Agency Applications—Contents...

  14. Content Area Reading.

    ERIC Educational Resources Information Center

    French, Michael P., Ed.

    1985-01-01

    The theme for this focused journal issue is reading in the content areas. Articles discuss the following topics: (1) teaching reading strategies instead of skills; (2) teaching reading in elementary content areas; (3) metacognition and mapping; (4) a summer school program designed to appeal to poorly motivated junior high school students who are…

  15. Early Learning Content Standards

    ERIC Educational Resources Information Center

    Ohio Department of Education, 2004

    2004-01-01

    The early learning content standards describe essential concepts and skills for young children. Based on research, these achievable indicators emerge as the result of quality early learning experiences regardless of the setting (e.g., nursery school, preschool, family care, etc.). In addition, the early learning content indicators are aligned to…

  16. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-20

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 138 Wednesday, July 20, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Forest...-37103 Postal Service PROPOSED RULES Domestic Mail Manual: Second-class mail contents, 37011-37018...

  17. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-01-04

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 2 Tuesday, January 4, 1994 Agricultural Marketing Service See Packers and Stockyards Administration RULES..., 395-426 Dietary supplements of vitamins, minerals, herbs, etc.; nutrient content claims,...

  18. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-05-04

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 85 Wednesday, May 4, 1994 Agency for Health Care Policy and Research NOTICES Meetings; advisory committees: May... inadvertently omitted from that issue's Table of Contents.] Defense Department NOTICES Agency...

  19. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-01-03

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 1 Monday, January 3, 1994 Agricultural Marketing Service NOTICES Meetings: National Organic Standards Board... Personnel Management Office in that issue's table of contents.] ADMINISTRATIVE ORDERS Egypt; DOD drawdown...

  20. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-03-31

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 62 Thursday, March 31, 1994 ACTION RULES Foster grandparent and senior companion programs; income eligibility...; correction, 15050-15051 Dietary supplements of vitamins, minerals, herbs, etc.; nutrient content...

  1. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-03-10

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 47 Thursday, March 10, 1994 Actuaries, Joint Board for Enrollment See Joint Board for Enrollment of Actuaries... selection processes; streamlining techniques, 11198-11200 Procurement plan contents regarding strategies...

  2. A numerical study of fundamental shock noise mechanisms. Ph.D. Thesis - Cornell Univ.

    NASA Technical Reports Server (NTRS)

    Meadows, Kristine R.

    1995-01-01

    The results of this thesis demonstrate that direct numerical simulation can predict sound generation in unsteady aerodynamic flows containing shock waves. Shock waves can be significant sources of sound in high speed jet flows, on helicopter blades, and in supersonic combustion inlets. Direct computation of sound permits the prediction of noise levels in the preliminary design stage and can be used as a tool to focus experimental studies, thereby reducing cost and increasing the probability of a successfully quiet product in less time. This thesis reveals and investigates two mechanisms fundamental to sound generation by shocked flows: shock motion and shock deformation. Shock motion is modeled by the interaction of a sound wave with a shock. During the interaction, the shock wave begins to move and the sound pressure is amplified as the wave passes through the shock. The numerical approach presented in this thesis is validated by the comparison of results obtained in a quasi-one dimensional simulation with linear theory. Analysis of the perturbation energy demonstrated for the first time that acoustic energy is generated by the interaction. Shock deformation is investigated by the numerical simulation of a ring vortex interacting with a shock. This interaction models the passage of turbulent structures through the shock wave. The simulation demonstrates that both acoustic waves and contact surfaces are generated downstream during the interaction. Analysis demonstrates that the acoustic wave spreads cylindrically, that the sound intensity is highly directional, and that the sound pressure level increases significantly with increasing shock strength. The effect of shock strength on sound pressure level is consistent with experimental observations of shock noise, indicating that the interaction of a ring vortex with a shock wave correctly models a dominant mechanism of shock noise generation.

  3. Development of a control system for a pair of robotic platforms. Thesis

    NASA Technical Reports Server (NTRS)

    Cosentino, James L.

    1990-01-01

    This thesis is a discussion of the development of a control system for a pair of three-degree-of-freedom robotic platforms. The platform system and its computer support are described at both the hardware and the software levels, including a section detailing diagnostics which can be run in the event of specific system errors. The design and implementation of a PID controller for the platforms based on experimentally-determined system dynamics is described. Finally, the tracking performance of each joint controller is examined. A path planner is used to map a smooth trajectory between starting and destination positions, and the controller's tracking ability is observed along this path.

  4. Top tips for PhD thesis examination: nurse clinicians, researchers and novices.

    PubMed

    Cleary, Michelle; Horsfall, Jan; Hunt, Glenn E

    2012-01-01

    Interestingly, there are very few guidelines in the literature to assist novice nurse PhD examiners. In this paper, we aim to provide information to nurses, researchers or early career academics who have little experience in assessing a university thesis. The article provides background information about recent changes in the university sector; overviews some research on experienced examiners views; presents factors that differentiate between high and low quality PhD theses; and outlines some pointers that may be useful when marking at the doctoral level. PMID:21903305

  5. Want to Improve Undergraduate Thesis Writing? Engage Students and Their Faculty Readers in Scientific Peer Review

    PubMed Central

    Reynolds, Julie A.; Thompson, Robert J.

    2011-01-01

    One of the best opportunities that undergraduates have to learn to write like a scientist is to write a thesis after participating in faculty-mentored undergraduate research. But developing writing skills doesn't happen automatically, and there are significant challenges associated with offering writing courses and with individualized mentoring. We present a hybrid model in which students have the structural support of a course plus the personalized benefits of working one-on-one with faculty. To optimize these one-on-one interactions, the course uses BioTAP, the Biology Thesis Assessment Protocol, to structure engagement in scientific peer review. By assessing theses written by students who took this course and comparable students who did not, we found that our approach not only improved student writing but also helped faculty members across the department—not only those teaching the course—to work more effectively and efficiently with student writers. Students who enrolled in this course were more likely to earn highest honors than students who only worked one-on-one with faculty. Further, students in the course scored significantly better on all higher-order writing and critical-thinking skills assessed. PMID:21633069

  6. No-first-use: Implications for deterrence, alliance cohesion, and nonproliferation. Master`s thesis

    SciTech Connect

    Espinosa, P.E.

    1994-12-01

    While a U.S. no first use declaration might help promote some nuclear nonproliferation goals (for example, gaining a larger international consensus to support an indefinite extension of the Nuclear Nonproliferation Treaty), it could also undermine the credibility of U.S. security commitments and erode alliance cohesion. These developments could, in turn, increase the risk of nuclear proliferation. This thesis identifies and examines the relevant competing arguments and discusses the implications of a U.S. no first use pledge regarding three issues: deterrence, alliance cohesion, and nuclear nonproliferation. The thesis concludes that adopting a no first use policy would probably prove beneficial only in the short term and only in one respect. The policy might help the United States meet its stated objectives for the 1995 NPT Review and Extension Conference. The arguments in favor of adopting a no first use pledge fail to adequately consider the possible long term implications, in particular, the risk that this policy could undermine stability in Europe and the integrity of the global nuclear nonproliferation regime. The potential shortcomings of the arguments on both sides of the no first use debate are highlighted. In view of these shortcomings, recommendations are given to help minimize possible negative political and military effects.

  7. Want to improve undergraduate thesis writing? Engage students and their faculty readers in scientific peer review.

    PubMed

    Reynolds, Julie A; Thompson, Robert J

    2011-01-01

    One of the best opportunities that undergraduates have to learn to write like a scientist is to write a thesis after participating in faculty-mentored undergraduate research. But developing writing skills doesn't happen automatically, and there are significant challenges associated with offering writing courses and with individualized mentoring. We present a hybrid model in which students have the structural support of a course plus the personalized benefits of working one-on-one with faculty. To optimize these one-on-one interactions, the course uses BioTAP, the Biology Thesis Assessment Protocol, to structure engagement in scientific peer review. By assessing theses written by students who took this course and comparable students who did not, we found that our approach not only improved student writing but also helped faculty members across the department--not only those teaching the course--to work more effectively and efficiently with student writers. Students who enrolled in this course were more likely to earn highest honors than students who only worked one-on-one with faculty. Further, students in the course scored significantly better on all higher-order writing and critical-thinking skills assessed. PMID:21633069

  8. A doctoral thesis about Carol Davila written in Paris in 1936

    PubMed Central

    ROGOZEA, LILIANA; DUMITRASCU, DINU I.; TRIFF, DORIN; LEASU, FLORIN; DUMITRAŞCU, DAN L.

    2014-01-01

    Carol Davila, the father of the Romanian modern medicine, made decisive contributions to the development of health sciences in the Romanian Principalities in the last decades of the nineteenth century. The merit of his scientific work was recognized beyond the borders of his country. His life (not devoid of anecdotic instances and unknown episodes) and especially his work have aroused considerable interest among numerous medical historians. This paper presents a historical study elaborated in France, but until recently ignored, dedicated to the biography of Carol Davila. It concerns the medical doctoral thesis (State Diploma) elaborated by Joseph Adler (born 1910 in Botoşani, Romania) under the supervision of professor Maxime Laignel-Lavastine, whose interest in Romania is well-known. Professor Laignel-Lavastine held the office of Secretary General of the International Society of History of Medicine (ISHM), founded in 1921, (replaced in this position by another French professor with links to Romania: Jules Guiart). The thesis comprises 48 pages and an exhaustive bibliography. It represents a token of the appreciation given to Davila’s achievements by Europe’s medical community. PMID:26527997

  9. Optimizing the post-START (Strategic Arms Reduction Treaty) US strategic nuclear force mix. Master's thesis

    SciTech Connect

    Leary, D.A.

    1989-06-01

    This thesis examines the impact a START agreement might have on the United States and Soviet strategic nuclear forces. It then proposes an optimum post-START force mix for the United States and the Soviet Union. The current, as well as projected, post-START targeting policies are discussed. It is concluded that the impact of a START agreement on the current U.S. strategic targeting policy will be minimal. Although the target data base will not shrink as much as the forces tasked to cover it, a prioritization of targets is all that should be necessary with a post-START force. A START agreement will mean major reductions in U.S. and Soviet strategic nuclear forces. As proposed in this thesis, only the ICBM leg of the Triad will require any major re-structuring. This would include the addition of mobile ICBM systems. The SLBM and bomber legs will feel minimal changes (i.e., retiring POSEIDON SSBNs and retiring or converting some older B-52s). It is recommended that the B-52 program be cancelled, and funding be re-directed into mobile ICBM systems. By doing so the United States could utilize technology available today to strengthen its forces and not gamble on the low-observable technology which a stealth bomber might have.

  10. Indo-Pakistani nuclear issue: A US policy perspective. Master's thesis

    SciTech Connect

    Wolf, J.L.

    1992-06-01

    This thesis examines U.S. nonproliferation policy and the problem of nuclear proliferation in India and Pakistan. Its central hypothesis is that the end of the Cold War has created an opportunity to advance U.S. nonproliferation interests and work with both India and Pakistan to reduce the threat of a nuclear confrontation on the Indian Subcontinent. The thesis assesses both the motives for and the current status of the nuclear weapons programs in India and Pakistan. It also presents some plausible scenarios concerning future courses those programs could take. Finally, it presents a set of policy recommendations directed toward reducing Indo-Pakistani nuclear tensions and laying the foundations to make a future South Asian nuclear nonproliferation regime possible. Ultimately, this approach would create safer, more stable security arrangements for India and Pakistan and further reduce the threat from nuclear weapons in the post-Cold War world. United States, India, Pakistan, U.S.-Indian Relations, U.S.-Pakistan Relations, Nuclear Weapons, Nonproliferation, U.S. Foreign Policy.

  11. [The thesis of judicialization of health care by the elites: medication for mucopolysaccharidosis].

    PubMed

    Medeiros, Marcelo; Diniz, Debora; Schwartz, Ida Vanessa Doederlein

    2013-04-01

    This paper evaluates the hypothesis that the judicialization of medicine for mucopolysaccharidosis in Brazil is an action promoted by economic elites. Previous studies upholding the thesis of judicialization by elites in the case of other types of medication that are more costly for the Unified Health Service are discussed. An analysis of all 196 processes containing information about judicial processes brought to court between February 2006 and December 2010 that ended by determining that the State should provide such medication free of charge to patients was conducted. There is evidence that attorneys' fees were covered by entities interested in the results of judicialization, such as the distributors or pharmaceutical industries. Patients may also be migrating for diagnosis and treatment to university centers that are a benchmark for medical innovation in the country, as the option for public health services is related to their higher technical and scientific capacity. Therefore, the resort to private lawyers, indicators of social exclusion based on the address of patients and the use of public health services, are not adequate class information to corroborate or refute the thesis of judicialization by the elites. PMID:23670386

  12. Intermediate design and analysis of the PANSAT electrical power subsystem. Master's thesis

    SciTech Connect

    Hand, G.F.

    1994-03-01

    This thesis examined three primary components of the electrical power subsystem (EPS) for the Petite Amateur Navy Satellite (PANSAT): (1) the solar array; (2) the power conditioning and control subsystem (PCCS); and (3) the batteries. The emphasis of this thesis was to analyze the output performance of the solar array. Additionally, the derivation of the hybrid PCCS proposed for the EPS was examined and the use of Nickel-Cadmium batteries as a candidate for the secondary power source was discussed. The investigation of the solar array's output performance led to PANSAM (PANSAT Solar Array Model), a computer model which simulates the power output of the solar array. The user can specify the sun's declination, the orbit's inclination, and the satellite's orientation and rate of rotation about each of its three axes. Once a simulation is complete, PANSAM provides the effective surface area illuminated by the sun, and the output current and power. The average effective area determined by PANSAM was 17.6% less than the 1259/sq cm originally proposed by the PANSAT staff. This contributed to a substantial reduction in predicted power. A preliminary transient thermal analysis of PANSAT was also conducted to provide temperature data for PANSAM.

  13. Radiation and scattering from cylindrically conformal printed antennas. Ph.D. Thesis Final Report

    NASA Technical Reports Server (NTRS)

    Kempel, Leo C.; Volakis, John L.

    1994-01-01

    Microstrip patch antennas offer considerable advantages in terms of weight, aerodynamic drag, cost, flexibility, and observables over more conventional protruding antennas. These flat patch antennas were first proposed over thirty years ago by Deschamps in the United States and Gutton and Baisinot in France. Such antennas have been analyzed and developed for planar as well as curved platforms. However, the methods used in these designs employ gross approximations, suffer from extreme computational burden, or require expensive physical experiments. The goal of this thesis is to develop accurate and efficient numerical modeling techniques which represent actual antenna structures mounted on curved surfaces with a high degree of fidelity. In this thesis, the finite element method is extended to cavity-backed conformal antenna arrays embedded in a circular, metallic, infinite cylinder. Both the boundary integral and absorbing boundary mesh closure conditions will be used for terminating the mesh. These two approaches will be contrasted and used to study the scattering and radiation behavior of several useful antenna configurations. An important feature of this study will be to examine the effect of curvature and cavity size on the scattering and radiation properties of wraparound conformal antenna arrays.

  14. Environmental cost principle: Gone but not forgotten. Master`s thesis

    SciTech Connect

    Robb, J.L.

    1995-09-30

    This thesis has not focused on the myriad of environmental laws generating costs for government contractors. Compliance with such laws is not beyond the experience of government cost-reimbursement contracting. This thesis has not detailed the alternative to cost reimbursement; i.e., a contribution action against the United States for cleanup costs. Potential contribution action remains an issue when the contamination is related to the performance of a government contract. At the center of this analysis is the efficacy of the draft environmental cost principle. The draft cost principle forced the consideration of the many prickly issues that must someday be resolved. The draft cost principle is unlikely to return in present form. It may be gone, but it should not be forgotten. The environmental cost issues will resurface. Future attempts to address these issues will benefit from the careful consideration of the latest draft environmental cost principle. The core questions to be answered are what would be the impact of the cost principle on the treatment of various environmental costs, and whether such impact is for the good.

  15. A doctoral thesis about Carol Davila written in Paris in 1936.

    PubMed

    Rogozea, Liliana; Dumitrascu, Dinu I; Triff, Dorin; Leasu, Florin; Dumitraşcu, Dan L

    2014-01-01

    Carol Davila, the father of the Romanian modern medicine, made decisive contributions to the development of health sciences in the Romanian Principalities in the last decades of the nineteenth century. The merit of his scientific work was recognized beyond the borders of his country. His life (not devoid of anecdotic instances and unknown episodes) and especially his work have aroused considerable interest among numerous medical historians. This paper presents a historical study elaborated in France, but until recently ignored, dedicated to the biography of Carol Davila. It concerns the medical doctoral thesis (State Diploma) elaborated by Joseph Adler (born 1910 in Botoşani, Romania) under the supervision of professor Maxime Laignel-Lavastine, whose interest in Romania is well-known. Professor Laignel-Lavastine held the office of Secretary General of the International Society of History of Medicine (ISHM), founded in 1921, (replaced in this position by another French professor with links to Romania: Jules Guiart). The thesis comprises 48 pages and an exhaustive bibliography. It represents a token of the appreciation given to Davila's achievements by Europe's medical community. PMID:26527997

  16. THE WEBER THESIS OF CALVINISM AND CAPITALISM--ITS VARIOUS VERSIONS AND THEIR "FATE" IN SOCIAL SCIENCE.

    PubMed

    Zafirovski, Milan

    2016-01-01

    The paper identifies and examines various multiple renditions of the so-called Weber Thesis of an historical association and convergence between ascetic Protestantism, above all Calvinism, and the emergence and development of modern capitalism as an economic spirit and system. Specifically, it detects at least four different versions and formulations or interpretations, thus casting doubt in the common view of the Weber Thesis as a single and monolithic theory or hypothesis. The paper also considers the status of the multiple versions of the Weber Thesis in post-Weberian and contemporary sociology and related disciplines like economics and history. It concludes that the weaker, relaxed renditions of the Weber Thesis have attained a greater success and more endured in contemporary social science than have its stronger, stricter versions. PMID:26550794

  17. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-05-13

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 92 Friday, May 13, 1994 Administration on Aging See Aging Administration Aging Administration NOTICES Grants and cooperative agreements; availability, etc.: Discretionary funds program, 25064-25101...

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    1994-02-16

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 32 Wednesday, February 16, 1994 Agricultural Marketing Service PROPOSED RULES Milk marketing orders: Tennessee Valley, 7665 Agriculture Department See Agricultural Marketing Service See Forest Service Army...

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    1994-05-24

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 99 Tuesday, May 24, 1994 Administrative Conference of the United States NOTICES Meetings: Assembly of Administrative Conference, 26781 Agricultural Marketing Service See Packers and Stockyards Administration...

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    Federal Register 2010, 2011, 2012, 2013, 2014

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 182 Wednesday, September 21, 1994 Architectural and Transportation Barriers Compliance Board PROPOSED RULES Americans with Disabilities Act; implementation: Accessibility guidelines-- Buildings and...

  1. 59 FR- CONTENTS

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 66 Wednesday, April 6, 1994 Agency for Health Care Policy and Research NOTICES Medical technology assessments: Signal-averaged electrocardiography; safety, clinical effectiveness, and indications, 16211...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 241 Friday, December 16, 1994 Administrative Conference of the United States NOTICES Agency information collection activities under OMB review, 65008 Agriculture Department See Grain Inspection, Packers...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 24 Friday, February 4, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Economic Research Service Animal and Plant Health Inspection Service NOTICES Environmental...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 114 Wednesday, June 15, 1994 Agency for International Development NOTICES Meetings: Voluntary Foreign Aid Advisory Committee, 30769 Agricultural Marketing Service RULES Apricots grown in Washington,...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 58 Friday, March 25, 1994 Agricultural Marketing Service See Packers and Stockyards Administration PROPOSED RULES Referendum: Tobacco auction market consolidation, Williamston et al., NC, 14124...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 115 Thursday, June 16, 1994 Advisory Council on Historic Preservation See Historic Preservation, Advisory Council Agricultural Marketing Service RULES Avocados grown in South Florida, and avocados,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-10-19

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 201 Wednesday, October 19, 1994 Administration on Aging See Aging Administration Agency for International Development NOTICES Grants and cooperative agreements; availability, etc.: Democracy fellows program,...

  18. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-09-23

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 184 Friday, September 23, 1994 Agricultural Marketing Service See Packers and Stockyards Administration RULES Milk marketing orders: Southwest Plains, 48786-48787 Oranges, grapefruit, tangerines, and...

  19. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-13

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 112 Monday, June 13, 1994 Administrative Office of United States Courts NOTICES Court interpreters; Spanish, Cantonese, Mandarin, Korean, Arabic, Hebrew, Italian, Mien, Polish, and Russian examinations,...

  20. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-24

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 121 Friday, June 24, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Farmers Home Administration Animal and Plant Health Inspection Service NOTICES Environmental...

  1. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-03-24

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 57 Thursday, March 24, 1994 Agency for International Development NOTICES Agency information collection activities under OMB review, 13925 Agency for Toxic Substances and Disease Registry NOTICES...

  2. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-03-30

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 61 Wednesday, March 30, 1994 Agricultural Marketing Service See Packers and Stockyards Administration Agriculture Department See Farmers Home Administration See Forest Service See Packers and...

  3. [Albert Schweitzer's MD thesis on Criticism of the medical pathographies on Jesus].

    PubMed

    Seidel, Michael

    2009-01-01

    The prominent philosopher, theologian, physician, musicologist and organ soloist Albert Schweitzer (14. 1. 1875-4. 9. 1965) submitted his MD thesis Kritik der von medizinischer Seite verffentlichten Pathographien uber Jesus (Criticism of the medical pathographies on Jesus) in 1913. Very soon he published this work under the title Die psychiatrische Beurteilung Jesu. Darstellung und Kritik (The psychiatric evaluation of Jesus. Description and criticism) in order to reach a broader audience. Schweitzer's explicit motive for selecting this topic was to influence the theological debate by means of a M. D. thesis on psychiatric pathographies on Jesus. He was confronted with a lot of reproaches. These reproaches contended that his theological opinions had been supporting tendencies to describe Jesus as a mentally ill person or a religious fanatic. In addition, some authors of pathographies on Jesus (De Loosten, Binet-Sangl, Hirsch, Rasmussen) characterized Jesus as mentally ill, suffering from paranoia. Schweitzer intended to reject the reproaches considering himself and the postulates of the authors of the pathographies. Schweitzer combined in a transdisciplinary way theological, psychiatric and psychopathological arguments. He did this in a very convincing way. Although Schweitzer did not deal with a central or explicit psychiatric question, he implicitly postulated transdisciplinary approaches for proper retrospective pathographies on historic persons. At the age of thirty, Schweitzer decided to finish his academic career and to begin studies in medicine as a preparation for work as a physician in Africa. This decision provoked much lack of understanding in his personal environment. Therefore it may be possible that a very personal motive contributed to the selection of the topic of the MD thesis. Among psychiatric authorities, Albert Schweitzer's interest in the criticisms of psychiatric pathographies and his transdisciplinary approach to this topic encountered rather criticism from a positivistic point of view than understanding. As a reaction to this, Schweitzer postulated some fundamental positions regarding the cultural or social responsibility of science and regarding the interdisciplinary cooperation within the universitas litterarum. These positions precede the way Albert Schweitzer is reconsidered as author in cultural studies and ethicist. The fact that this happened immediately before the beginning of the WWI may show his farsightedness. PMID:20509445

  4. Analysis of the asbestos permissible-exposure-level threshold standard. Master's thesis

    SciTech Connect

    Peterson, M.W.

    1991-06-01

    This thesis examines the reasoning of the Occupational Safety and Health Administration's (OSHA) decision to set stringent exposure levels for airborne asbestos in the work place. Technical recommendations from the National Institute for Occupational Safety and Health (NIOSH), the Bureau of Mines, and the American conference of Governmental Industrial Hygienists were presented to OSHA for consideration. OSHA and the Environmental Protection Agency (EPA) set industry standards for permissible exposure levels (PEL) of airborne asbestos. Exposure to asbestos poses a health hazard to workers, their families, and consumers of asbestos products. Because it poses an unreasonable risk human life, OSHA has repeatedly lowered the Permissible Exposure Levels and the EPA will ban the manufacture, importation, processing and commercial distribution of asbestos containing products from the United States in phases by 1997. These decisions may have been made too hastily because of the long latency (15-40 years) period before cancer develops, and the added risks that smoking imposes.

  5. Utility cost accounting and market pricing of electricity at the Naval Postgraduate School. Master's thesis

    SciTech Connect

    Murdter, M.J.

    1994-06-01

    This thesis demonstrates that significant cost savings may be realized at the Naval Postgraduate School by accounting for utilities costs with market pricing methods instead of engineering estimates of consumption for nonmetered users and by streamlining the current invoice processing procedures. Electricity demand curves for each element of the supplier rate structure were constructed from recent consumption data and price elasticities of demand from the literature. The deadweight losses from overconsumption were calculated and compared to the costs of installing meters capable of recording time-of-use and peak demand. The current invoice processing procedures were analyzed and spreadsheet tools were developed to streamline the processes and avoid interest charges from late payment. The results of the research indicate that market pricing of electricity and accelerated invoice processing would result in significant savings to the Naval Postgraduate School. Utilities, Electricity, Deadweight loss.

  6. Impact of ion propulsion on performance, design, testing and operation of a geosynchronous spacecraft. Master's thesis

    SciTech Connect

    Lugtu, S.D.

    1990-06-01

    This thesis presents the implementation issues of an ion propulsion subsystem (IPS) on a geosynchronous communications satellite. As an example, Ultra High Frequency (UHF) Follow-On class satellite is selected for this study. The issues include: (1) impact of integration of IPS with other subsystems, such as the electrical power subsystem to take care of the heavy demand of power requirements and location of the subsystem with least impact on attitude control and plume impingement on solar arrays, (2) environmental considerations-particulate contamination, electrostatic discharge (ESD), and electromagnetic interference (EMI), and finally risks and benefits. Ion propulsion offers significant advantages over chemical propulsion due to its high specific impulse and the advent of xenon thruster technology, multikilowatt spacecraft, and nickel-hydrogen (Ni-H2) batteries with demonstrated high cycle life have combined to make the ion thruster attractive for North-South Station Keeping (NSSK).

  7. Slam simulation base escape model using response surface methodology. Master's thesis

    SciTech Connect

    Clark, S.P.

    1986-03-01

    This thesis presents a microcomputer-compatible, base escape nuclear-survivability model specifically designed to compute SAC alert aircraft pre-launch survivability. It computes the number of aircraft surviving from single or multiple bases under Sea Launched Ballistic Missile (SLBM) attack. The FORTRAN model concentrates on simulating the process from alert to take-off. In particular, it models the statistical variability of crew reaction time, engine start time, taxi time, and take-off separation time under various levels of readiness. Nuclear overpressure, gust, and thermal fluences are determined through response surface methods, and aircraft survivability is derived from cumulative log-normal damage functions. Its advantages over current base escape models are microcomputer compatibility and stochastic representation of the pre-launch survivability timing variables.

  8. Decision support system for control and automation of dynamical processes. Master's thesis

    SciTech Connect

    Nann, S.

    1990-03-01

    The thesis presents the concept and development of a diagnostic decision support system for real-time control and automation of dynamic processes. This system, known as DECA (Diagnostic Evaluation and Corrective Action), will take advantage of the computer's ability to manipulate vast amounts of data, and employ qualitative reasoning for the monitoring and diagnosis of dynamical processes during time-constrained, routine, and emergency situations where an immediate response is necessary to avoid catastrophic failure of the system. The software system's architecture has been structured in such a manner that is can be applied to any dynamic process without reprogramming. DECA is written in Lisp and was verified using the data from the Three Mile Island Nuclear Reactor Accident.

  9. Nuclear proliferation and Latin American Security: Is the bomb' program dead in Brazil. Master's thesis

    SciTech Connect

    De Jesus, E.

    1994-03-24

    This thesis addresses the possibility of a Brazilian hidden agenda in order to support one of the most advanced nuclear research and nuclear power programs in Latin America. From the early 1970s to the late 1980s Brazilian military leaders pursued the development of nuclear weapons. With the emergence of democratic regimes during the 1980s, these covert projects were halted or terminated. The civilian administration in Brazil is now supporting an ambiguous and uncompromising position by not ratifying significant agreements renouncing nuclear weapons programs. With Brazil still rejecting the Non-Proliferation Treaty (NPT), not formally embracing the Tlatelolco Treaty (which prohibits nuclear weapons in Latin America), and not allowing full implementation of inspections and International Atomic Energy Association (IAEA) Safeguards on its nuclear facilities, the future of the Brazilian nuclear program appears to be a dormant but potential political factor in Brazilian foreign policy.

  10. Thermodynamic improvements for the space thermo-acoustic refrigerator (STAR). Master's thesis

    SciTech Connect

    Susalla, M.P.

    1988-06-01

    The objective of the STAR project is to test and space qualify a new continuous-cycle cryogenic refrigeration system for cooling of sensors and electronics which is based upon the newly discovered thermoacoustic heat-pumping effect. The new refrigerator has no sliding seals, a cycle frequency of about 300 Hz, and uses acoustic resonance to enhance the overall power density and efficiency. This thesis is concerned specifically with the design and testing of the thermodynamic element (or stack), which is responsible for the thermo-acoustic power conversion, and the testing of binary inert-gas mixtures as working fluids. Using the refrigerator's coefficient of performance relative to the ideal Carnot coefficient of performance as a measure of efficiency, a 93% improvement over previous designs.

  11. Dependability analysis of parallel systems using a simulation-based approach. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Sawyer, Darren Charles

    1994-01-01

    The analysis of dependability in large, complex, parallel systems executing real applications or workloads is examined in this thesis. To effectively demonstrate the wide range of dependability problems that can be analyzed through simulation, the analysis of three case studies is presented. For each case, the organization of the simulation model used is outlined, and the results from simulated fault injection experiments are explained, showing the usefulness of this method in dependability modeling of large parallel systems. The simulation models are constructed using DEPEND and C++. Where possible, methods to increase dependability are derived from the experimental results. Another interesting facet of all three cases is the presence of some kind of workload of application executing in the simulation while faults are injected. This provides a completely new dimension to this type of study, not possible to model accurately with analytical approaches.

  12. Correlative comparison of geomagnetic storms and auroral substorms using geomagnetic indeces. Master's thesis

    SciTech Connect

    Cade, W.B.

    1993-06-01

    Partial contents include the following: (1) Geomagnetic storm and substorm processes; (2) Magnetospheric structure; (3) Substorm processes; (4) Data description; (5) Geomagnetic indices; and (6) Data period and data sets.

  13. Deep venous thrombosis: The valve cusp hypoxia thesis and its incompatibility with modern orthodoxy.

    PubMed

    Malone, P Colm; Agutter, Paul S

    2016-01-01

    The valve cusp hypoxia thesis (VCHT) of the aetiology of deep venous thrombosis (DVT) was adumbrated in this journal in 1977 and fully articulated in 2008, the original hypothesis having been strongly corroborated by experiments published in 1981 and 1984. It presents a unitary account of the pathogenesis of venous thrombosis and embolism that is rooted in the pathophysiological tradition of Hunter, Virchow, Lister, Welch and Aschoff, a tradition traceable back to Harvey. In this paper we summarise the thesis in its mature form, consider its compatibility with recent advances in the DVT field, and ask why it has not yet been assimilated into the mainstream literature, which during the past half century has been dominated by a haematology-orientated 'consensus model'. We identify and discuss seven ways in which the VCHT is incompatible with these mainstream beliefs about the aetiology of venous thrombosis, drawing attention to: (1) the spurious nature of 'Virchow's triad'; (2) the crucial differences between 'venous thrombus' and 'clot'; the facts that (3) venous thrombi form in the valve pockets (VVPs), (4) DVT is not a primarily haematological condition, (5) the so-called 'thrombophilias' are not thrombogenic per se; (6) the conflict between the single unitary aetiology of DVT and the tacit assumption that the condition is 'multicausal'; (7) the inability of anticoagulants to prevent the initiation of venous thrombogenesis, though they do prevent the growth of thrombi to clinically significant size. In discussing point (7), we show that the VCHT indicates new approaches to mechanical prophylaxis against DVT. These approaches are then formulated as experimentally testable hypotheses, and we suggest methods for testing them preclinically using animal trials. PMID:26804599

  14. Secure content objects

    DOEpatents

    Evans, William D.

    2009-02-24

    A secure content object protects electronic documents from unauthorized use. The secure content object includes an encrypted electronic document, a multi-key encryption table having at least one multi-key component, an encrypted header and a user interface device. The encrypted document is encrypted using a document encryption key associated with a multi-key encryption method. The encrypted header includes an encryption marker formed by a random number followed by a derivable variation of the same random number. The user interface device enables a user to input a user authorization. The user authorization is combined with each of the multi-key components in the multi-key encryption key table and used to try to decrypt the encrypted header. If the encryption marker is successfully decrypted, the electronic document may be decrypted. Multiple electronic documents or a document and annotations may be protected by the secure content object.

  15. Lead Content of Foodstuffs

    PubMed Central

    Mitchell, Douglas G.; Aldous, Kenneth M.

    1974-01-01

    The lead content of a number of foodstuffs, particularly baby fruit juices and milk, is reported. Samples were analyzed in quadruplicate by using an automated Delves cup atomic absorption procedure. A large proportion of the products examined contained significant amounts of lead. Of 256 metal can examined, the contents of 62% contained a lead level of 100 μg/l. or more, 37% contained 200 μg/l. or more and 12% contained 400 μg/l. lead or more. Of products in glass and aluminum containers, only 1% had lead levels in excess of 200 μg/l. Lead levels of contents also correlate with the seam length/volume ratio of the leaded seam can. A survey of bulk milk showed a mean lead level of 40 μg/l. for 270 samples; for canned evaporated milk the mean level was 202 μg/l. These data indicate a potential health hazard. PMID:4406645

  16. Semantische Content Management Systeme

    NASA Astrophysics Data System (ADS)

    Gams, Erich; Mitterdorfer, Daniel

    Content Management Systeme (CMS) sind in vielen Organisationen bereits seit längerer Zeit fester Bestandteil zur Verwaltung und kollaborativen Bearbeitung von Text- und Multimedia-Inhalten. Im Zuge der rasch ansteigenden Fülle an Informationen und somit auch Wissen wird die Überschaubarkeit der Datenbestände jedoch massiv eingeschränkt. Diese und zusätzliche Anforderungen, wie automatisch Datenquellen aus dem World Wide Web (WWW) zu extrahieren, lassen traditionelle CMS immer mehr an ihre Grenzen stoßen. Dieser Beitrag diskutiert die neuen Herausforderungen an traditionelle CMS und bietet Lösungsvorschläge, wie CMS kombiniert mit semantischen Technologien diesen Herausforderungen begegnen können. Die Autoren stellen eine generische Systemarchitektur für Content Management Systeme vor, die einerseits Inhalte für das Semantic Web generieren, andererseits Content aus dem Web 2.0 syndizieren können und bei der Aufbereitung des Content den User mittels semantischer Technologien wie Reasoning oder Informationsextraktion unterstützen. Dabei wird auf Erfahrungen bei der prototypischen Implementierung von semantischer Technologie in ein bestehendes CMS System zurückgegriffen.

  17. Content Management Systems

    ERIC Educational Resources Information Center

    Wisniewski, Jeff; Stenstrom, Cheryl

    2007-01-01

    In this article, the authors provide a guide in acquiring content management system. They conducted a vendor survey that covers four areas: (1) general information about the product (including standards supported); (2) administration of the product; (3) functionality; and (4) contact information for readers who want to know more. A list of product…

  18. Language, the Forgotten Content.

    ERIC Educational Resources Information Center

    Kelly, Patricia P., Ed.; Small, Robert C., Jr., Ed.

    1987-01-01

    The ways that students can learn about the nature of the English language and develop a sense of excitement about their language are explored in this focused journal issue. The titles of the essays and their authors are as follows: (1) "Language, the Forgotten Content" (R. Small and P. P. Kelly); (2) "What Should English Teachers Know about…

  19. Integrating Language and Content

    ERIC Educational Resources Information Center

    Nordmeyer, Jon, Ed.; Barduhn, Susan, Ed.

    2010-01-01

    The definition of "English language classroom" is changing. When students have the opportunity to learn content and language at the same time, disciplinary boundaries overlap. Teachers are rethinking how they design courses, plan lessons, assess students, and collaborate with colleagues to support student learning and facilitate their own

  20. Caution, contention, and consolidation.

    PubMed

    Dorr, Robert F

    2005-07-01

    The Washington Watch column provides an overview of NASA's cautious approach to the launch of Space Shuttle Discovery STS-114, contention between the Air Force and administration about production of the F/A-22 Raptor aircraft, and consolidation among U.S. airline companies. PMID:16044609

  1. LCS Content Document Application

    NASA Technical Reports Server (NTRS)

    Hochstadt, Jake

    2011-01-01

    My project at KSC during my spring 2011 internship was to develop a Ruby on Rails application to manage Content Documents..A Content Document is a collection of documents and information that describes what software is installed on a Launch Control System Computer. It's important for us to make sure the tools we use everyday are secure, up-to-date, and properly licensed. Previously, keeping track of the information was done by Excel and Word files between different personnel. The goal of the new application is to be able to manage and access the Content Documents through a single database backed web application. Our LCS team will benefit greatly with this app. Admin's will be able to login securely to keep track and update the software installed on each computer in a timely manner. We also included exportability such as attaching additional documents that can be downloaded from the web application. The finished application will ease the process of managing Content Documents while streamlining the procedure. Ruby on Rails is a very powerful programming language and I am grateful to have the opportunity to build this application.

  2. Shaping Digital Library Content.

    ERIC Educational Resources Information Center

    Miller, Rush G.

    2002-01-01

    Explores issues related to the selection and purchase of digital content in academic libraries, including commercially-produced databases, electronic journals, and books and other electronic resources that are purchased from vendors; and in-house digitization projects. Considers the degree to which standard collection management principles apply.…

  3. Content Management Systems

    ERIC Educational Resources Information Center

    Wisniewski, Jeff; Stenstrom, Cheryl

    2007-01-01

    In this article, the authors provide a guide in acquiring content management system. They conducted a vendor survey that covers four areas: (1) general information about the product (including standards supported); (2) administration of the product; (3) functionality; and (4) contact information for readers who want to know more. A list of product

  4. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-12-07

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 234 Wednesday, December 7, 1994 Agriculture Department See Forest Service Assassination Records Review Board NOTICES Meetings; Sunshine Act, 63156 Coast Guard RULES Ports and waterways safety: Chesapeake Bay,...

  5. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-03-28

    ... From the Federal Register Online via the Government Printing Office CONTENTS Vol. 59, No. 59 Monday, March 28, 1994 Administrative Conference of the United States NOTICES Meetings: Judicial Review Committee, 14384 Agency for Toxic Substances and Disease Registry NOTICES Meetings: Role of biomarkers...

  6. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-09

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 152 Tuesday, August 9, 1994 Agency for Toxic Substances and Disease Registry NOTICES Grant and cooperative agreement awards: Association of Occupational and Environmental Clinics, 40593-40594 National Association...

  7. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-29

    ... From the Federal Register Online via the Government Printing Office ] Editorial note: For the President's remarks at a ceremony honoring the 1994 Victim Service Award recipients, see issue 17 of the Weekly Compilation of Presidential Documents. CONTENTS Vol. 59, No. 82 Friday, April 29,...

  8. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-10-03

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 190 Monday, October 3, 1994 Advisory Council on Historic Preservation See Historic Preservation, Advisory Council Agency for International Development NOTICES Housing guaranty program: Indonesia, 50218-50219...

  9. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-09-01

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 169 Thursday, September 1, 1994 Agricultural Marketing Service RULES Apricots grown in Washington, 45184-45185 Nectarines and peaches grown in California, 45183-45184 Onions (Vidalia) grown in Georgia,...

  10. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-31

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 168 Wednesday, August 31, 1994 Actuaries, Joint Board for Enrollment See Joint Board for Enrollment of Actuaries Agriculture Department See Animal and Plant Health Inspection Service See Commodity Credit Corporation...

  11. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-05

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 65 Tuesday, April 5, 1994 Agricultural Marketing Service RULES Nectarines and peaches grown in California, 15835-15843 PROPOSED RULES Cotton: Cotton producers; classification services; module averaging...

  12. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-03

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 148 Wednesday, August 3, 1994 Agricultural Marketing Service RULES Almonds grown in California, 39417-39419 Marketing orders; expenses and assessment rates, 39415-39417, 39419- 39421 Oranges and grapefruit grown...

  13. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-02-09

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 27 Wednesday, February 9, 1994 Agricultural Marketing Service RULES Dairy products; grading, inspection, and standards: Fee increases, 5933-5934 Agriculture Department See Agricultural Marketing Service Air...

  14. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-21

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 118 Tuesday, June 21, 1994 Agricultural Marketing Service RULES Cherries, sweet, grown in Washington, 31917-31921 Agricultural Research Service NOTICES Inventions, Government-owned; availability for...

  15. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-01

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 63 Friday, April 1, 1994 Agency for Toxic Substances and Disease Registry NOTICES Grants and cooperative agreements; availability, etc.: Public health conference support program, 15413-15414 Agricultural...

  16. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-30

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 167 Tuesday, August 30, 1994 Administrative Conference of the United States NOTICES Recommendations: Audited self-regulation regulatory technique, and civil forfeiture of property or other assets,...

  17. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-12-22

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 245 Thursday, December 22, 1994 Administrative Conference of the United States NOTICES Meetings: Assembly of Administrative Conference, 65999 Agriculture Department See Animal and Plant Health Inspection Service See...

  18. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-07

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 67 Thursday, April 7, 1994 Agricultural Marketing Service RULES Milk marketing orders: New England et al., 16511-16513 PROPOSED RULES Lime research, promotion, and consumer information order,...

  19. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-27

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 122 Monday, June 27, 1994 Agriculture Department See Food Safety and Inspection Service See Forest Service NOTICES Import quotas and fees: Domestic Swiss cheese; price undercutting by imported Swiss cheese...

  20. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-04

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 64 Monday, April 4, 1994 Agricultural Marketing Service RULES Grapes grown in California, 15611-15612 PROPOSED RULES Avocados grown in Florida, 15658-15661 Fruits; import regulations: Avocados,...

  1. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-05-23

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 98 Monday, May 23, 1994 Agricultural Marketing Service PROPOSED RULES Cherries, tart, grown in-- Michigan et al., 26603 Milk marketing orders: Southern Michigan, 26603-26608 Agriculture Department...

  2. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-11-30

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 229 Wednesday, November 30, 1994 Agency for International Development NOTICES Housing guaranty program: South Africa, 61340-61341 Agricultural Marketing Service PROPOSED RULES Potatoes (Irish) grown in-- Idaho...

  3. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-21

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 77 Thursday, April 21, 1994 Agricultural Marketing Service RULES Marketing orders; expenses and assessment rates, 18943-18945 Onions (Vidalia) grown in Georgia, 18945-18946 Spearmint oil produced in Far...

  4. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-13

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 133 Wednesday, July 13, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Federal Crop Insurance Corporation See Food Safety and Inspection Service See Forest Service See...

  5. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-05

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 127 Tuesday, July 5, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Commodity Credit Corporation See Food Safety and Inspection Service See Rural Electrification Administration...

  6. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-06-23

    ... From the Federal Register Online via the Government Printing Office ] Editorial note: For the President's message to the Congress on these sanctions, see issue 24 of volume 30 of the Weekly Compilation of Presidential Documents. CONTENTS Vol. 59, No. 120 Thursday, June 23, 1994 Agency for...

  7. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-01-19

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 12 Wednesday, January 19, 1994 Agriculture Department See Food and Nutrition Service See Forest Service See Soil Conservation Service RULES Organization, functions, and authority delegations: Under Secretary...

  8. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-02-01

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 21 Tuesday, February 1, 1994 Administrative Conference of the United States NOTICES Recommendations: Pesticides regulation and right to consult counsel in agency investigations, 4669-4678 Agriculture...

  9. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-09-27

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 186 Tuesday, September 27, 1994 Agriculture Department See Commodity Credit Corporation See Federal Crop Insurance Corporation See Foreign Agricultural Service See Forest Service Centers for Disease Control...

  10. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-20

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 76 Wednesday, April 20, 1994 Agriculture Department See Cooperative State Research Service See Food and Nutrition Service See Forest Service See Soil Conservation Service RULES Organization, functions,...

  11. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-11-09

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 216 Wednesday, November 9, 1994 Agricultural Marketing Service RULES Peanuts, domestically produced, 55808-55810 Agriculture Department See Agricultural Marketing Service See Forest Service See Rural Telephone Bank...

  12. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-04-14

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 72 Thursday, April 14, 1994 Agricultural Marketing Service PROPOSED RULES Watermelon research and promotion plan, 17739-17746 Agriculture Department See Agricultural Marketing Service See Forest Service...

  13. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-04

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 149 Thursday, August 4, 1994 Agency for International Development NOTICES Agency information collection activities under OMB review, 39726 Agriculture Department See Animal and Plant Health Inspection Service...

  14. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-10-05

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 192 Wednesday, October 5, 1994 Administrative Conference of the United States NOTICES Meetings: Rulemaking Committee et al., 50721 Agricultural Marketing Service RULES Potatoes (Irish) grown in-- Idaho and...

  15. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-01

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 126 Friday, July 1, 1994 Agricultural Marketing Service RULES Cotton research and promotion: Imported cotton-containing products assessment, 33901-33903 Nectarines and peaches grown in California, 33897-33898...

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    1994-03-14

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 49 Monday, March 14, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Commodity Credit Corporation See Federal Grain Inspection Service See Food and Nutrition Service See...

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    1994-10-14

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 198 Friday, October 14, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Federal Grain Inspection Service See Rural Electrification Administration Air Force Department NOTICES...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 55 Tuesday, March 22, 1994 Agricultural Marketing Service RULES Almonds grown in California, 13432-13434 Dairy promotion program: Promotion and research order, 13434-13435 Limes grown in Florida,...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 134 Thursday, July 14, 1994 African Development Foundation NOTICES Meetings; Sunshine Act, 35976 Agency for Health Care Policy and Research NOTICES Meetings: Health Care Policy and Research Special Emphasis...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 212 Thursday, November 3, 1994 Agricultural Marketing Service RULES Onions (Vidalia) grown in Georgia, 55019-55020 Tomatoes grown in Florida, 55020-55021 Agriculture Department See Agricultural Marketing...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 228 Tuesday, November 29, 1994 Agency for International Development NOTICES Housing guaranty program: Czech Republic, 61000-61001 Agricultural Marketing Service PROPOSED RULES Milk marketing orders: Georgia et...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 159 Thursday, August 18, 1994 Agriculture Department See Animal and Plant Health Inspection Service See Federal Crop Insurance Corporation See Forest Service See Rural Electrification Administration Animal and...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 206 Wednesday, October 26, 1994 Agricultural Marketing Service RULES Milk marketing orders: Eastern Ohio-Western Pennsylvania; correction, 53726 Agricultural Research Service NOTICES Patent licenses; non-exclusive,...

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    Federal Register 2010, 2011, 2012, 2013, 2014

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 80 Tuesday, April 26, 1994 Agency for International Development NOTICES Housing guaranty program: Zimbabwe, 21747 Agriculture Department See Animal and Plant Health Inspection Service See Food Safety...

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    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-07-26

    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 142 Tuesday, July 26, 1994 Agriculture Department See Animal and Plant Health Inspection Service NOTICES 1995 Farm Bill; food safety and quality; hearings, 37961 Air Force Department PROPOSED RULES...

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    ... From the Federal Register Online via the Government Printing Office ] CONTENTS Vol. 59, No. 203 Friday, October 21, 1994 Agency for Health Care Policy and Research NOTICES Meetings: Clinical practice guidelines development-- Smoking prevention and cessation guidelines, 53185-53186 Agency for Toxic...

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    1994-08-02

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    Federal Register 2010, 2011, 2012, 2013, 2014

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    1994-12-14

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    1994-06-10

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    1994-06-03

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    1994-01-20

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    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-01-14

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  18. 59 FR- CONTENTS

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-15

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  19. Content Area Vocabulary Learning

    ERIC Educational Resources Information Center

    Fisher, Douglas; Frey, Nancy

    2014-01-01

    Students' vocabulary knowledge is a significant predictor of their overall comprehension. The Common Core State Standards are raising the expectations for word learning and there are now 4 distinct standards related to vocabulary as well as expectations in other standards, including content areas. To address these expectations, teachers need…

  20. Content in Health Education.

    ERIC Educational Resources Information Center

    Health Education (Washington D.C.), 1985

    1985-01-01

    Six articles from health journals since 1898 discuss content in health education: (1) "Mental Health and the Schools" (Cromwell); (2) "You Must Relax--But How?" (Nash); (3) "School Hygiene and the Teaching of Hygiene in the Public Schools" (Egbert); (4) "A Sex Education Program" (Leibee); (5) "Sexual Education" (McCurdy); and (6) "Sex Education"…

  1. Measuring Snow Water Content

    USGS hydrologic technician Jim Caldwell uses an aluminum tube and scale to measure snow depth, snow water content and snow density as part of the Maine Cooperative Snow Survey. This survey is conducted throughout Maine in the spring to aid in the evaluation of flood potential by the Maine River Flow...

  2. Integrating Language and Content

    ERIC Educational Resources Information Center

    Nordmeyer, Jon, Ed.; Barduhn, Susan, Ed.

    2010-01-01

    The definition of "English language classroom" is changing. When students have the opportunity to learn content and language at the same time, disciplinary boundaries overlap. Teachers are rethinking how they design courses, plan lessons, assess students, and collaborate with colleagues to support student learning and facilitate their own…

  3. Content Area Vocabulary Learning

    ERIC Educational Resources Information Center

    Fisher, Douglas; Frey, Nancy

    2014-01-01

    Students' vocabulary knowledge is a significant predictor of their overall comprehension. The Common Core State Standards are raising the expectations for word learning and there are now 4 distinct standards related to vocabulary as well as expectations in other standards, including content areas. To address these expectations, teachers need

  4. Teaching Content Outrageously

    ERIC Educational Resources Information Center

    Pogrow, Stanley

    2010-01-01

    This article first explores the theoretical bases for why dramatic forms of instruction stimulate student learning and recall. Next, the article considers a practice that systematically applies drama, fun, and fantasy to embed selected content objectives into students' memory. This practical tool, which facilitates instructional reform in the…

  5. Thallium toxicity: The problem; an analytical approach; an antidotal study. Master's thesis

    SciTech Connect

    Mulkey, J.P.

    1993-03-15

    Thallium (Tl) is a highly toxic metal that is anthropogenically concentrated in the environment. Tl toxicity and the quantitative analysis of trace levels of Tl in biologic materials by atomic absorption spectroscopy is reviewed; a study designed to evaluate the antidotal efficacy of 2 compounds in the treatment of acute Tl toxicity in rats is documented. Unithiol (2,3-dimercapto-1-propanesulfonic acid, DMPS) and prussian blue (potassium ferric hexacyanoferrate(II), PB), given alone and in combination, were evaluated as antidotes in the treatment of acute thallotoxicosis in male Sprauge-Dawley rats. The relative accumulation of Tl in organs was kidney>>heart>liver-brain. PB induced significant decorporation of Tl from all tissues. DMPS failed to significantly decrease the Tl content in any organ, but significantly decreased the Tl content in whole blood. PB+DMPS treatment significantly decreased the Tl content in all organs, but to no greater extent than PB alone. PB and PB+DMPS treatments significantly increased the Tl content of feces, whereas DMPS treatment alone produced little effect. This study indicates that PB is a beneficial antidote in the treatment of acute thallotoxicosis in rats. The failure of DMPS to significantly decrease the Tl content in 4 target organs suggests it would not be useful in the treatment of Tl poisoning....Thallium, Poison, Antidote, Chelator, Prussian blue, Potassium ferric hexacyanoferrate(II), Unithiol, 2,3-dimercapto-1-propanesulfonic acid, Rat.

  6. Content Maps: A Teaching and Assessment Tool for Content Knowledge

    ERIC Educational Resources Information Center

    Ward, Phillip; Lehwald, Harry; Lee, Yun Soo

    2015-01-01

    Developing content knowledge in teachers presents a constant challenge for teacher educators. This article introduces a teaching and assessment tool called a "content map," which allows teacher educators, teachers, and coaches to conceptualize the scope, sequence, and relational characteristics of the content being taught. Content maps…

  7. Content Maps: A Teaching and Assessment Tool for Content Knowledge

    ERIC Educational Resources Information Center

    Ward, Phillip; Lehwald, Harry; Lee, Yun Soo

    2015-01-01

    Developing content knowledge in teachers presents a constant challenge for teacher educators. This article introduces a teaching and assessment tool called a "content map," which allows teacher educators, teachers, and coaches to conceptualize the scope, sequence, and relational characteristics of the content being taught. Content maps

  8. Evaluating the Implementation of Content Classes Delivered in English in Light of a CLIL-Based Curriculum

    ERIC Educational Resources Information Center

    Cano Blandón, Rubén Darío

    2015-01-01

    At present, the constant pressure that the local government exerts on the implementation of bilingual education in both public and private schools has affected second language teaching in Colombia. As a result, some private schools have started to modify their curriculum by delivering some content subjects in English. This thesis examines the…

  9. Anthropology for the Schools: An Analysis of Selected Anthropology Curriculum Projects and Units with Content Ratings by Professional Anthropologists.

    ERIC Educational Resources Information Center

    Dynneson, Thomas L.

    This thesis examines anthropology teaching materials for public schools in light of their characteristics -- subject content, rationale and objectives, antecedent conditions, evaluation, background of materials development -- and the determination of their accuracy and representation. The study also serves as a guide to types of anthropology…

  10. The Formation of a School Subject and the Nature of Curriculum Content: An Analysis of Liberal Studies in Hong Kong

    ERIC Educational Resources Information Center

    Deng, Zongyi

    2009-01-01

    This essay explores the nature of the curriculum content of liberal studies--a core school subject in the new senior secondary curriculum in Hong Kong--with reference to the curriculum-making processes entailed in the formation of that subject. The central thesis is that a school subject is introduced to schools and classrooms as a distinct…

  11. Holographic content addressable storage

    NASA Astrophysics Data System (ADS)

    Chao, Tien-Hsin; Lu, Thomas; Reyes, George

    2015-03-01

    We have developed a Holographic Content Addressable Storage (HCAS) architecture. The HCAS systems consists of a DMD (Digital Micromirror Array) as the input Spatial Light Modulator (SLM), a CMOS (Complementary Metal-oxide Semiconductor) sensor as the output photodetector and a photorefractive crystal as the recording media. The HCAS system is capable of performing optical correlation of an input image/feature against massive reference data set stored in the holographic memory. Detailed system analysis will be reported in this paper.

  12. Content Documents Management

    NASA Technical Reports Server (NTRS)

    Muniz, R.; Hochstadt, J.; Boelke J.; Dalton, A.

    2011-01-01

    The Content Documents are created and managed under the System Software group with. Launch Control System (LCS) project. The System Software product group is lead by NASA Engineering Control and Data Systems branch (NEC3) at Kennedy Space Center. The team is working on creating Operating System Images (OSI) for different platforms (i.e. AIX, Linux, Solaris and Windows). Before the OSI can be created, the team must create a Content Document which provides the information of a workstation or server, with the list of all the software that is to be installed on it and also the set where the hardware belongs. This can be for example in the LDS, the ADS or the FR-l. The objective of this project is to create a User Interface Web application that can manage the information of the Content Documents, with all the correct validations and filters for administrator purposes. For this project we used one of the most excellent tools in agile development applications called Ruby on Rails. This tool helps pragmatic programmers develop Web applications with Rails framework and Ruby programming language. It is very amazing to see how a student can learn about OOP features with the Ruby language, manage the user interface with HTML and CSS, create associations and queries with gems, manage databases and run a server with MYSQL, run shell commands with command prompt and create Web frameworks with Rails. All of this in a real world project and in just fifteen weeks!

  13. Determination of Fat Content

    NASA Astrophysics Data System (ADS)

    Carpenter, Charles

    The term "lipid" refers to a group of compounds that are sparingly soluble in water, but show variable solubility in a number of organic solvents (e.g., ethyl ether, petroleum ether, acetone, ethanol, methanol, benzene). The lipid content of a food determined by extraction with one solvent may be quite different from the lipid content as determined with another solvent of different polarity. Fat content is determined often by solvent extraction methods (e.g., Soxhlet, Goldfish, Mojonnier), but it also can be determined by nonsolvent wet extraction methods (e.g., Babcock, Gerber), and by instrumental methods that rely on the physical and chemical properties of lipids (e.g., infrared, density, X-ray absorption). The method of choice depends on a variety of factors, including the nature of the sample (e.g., dry versus moist), the purpose of the analysis (e.g., official nutrition labeling or rapid quality control), and instrumentation available (e.g., Babcock uses simple glassware and equipment; infrared requires an expensive instrument).

  14. New approach for the solution of optimal control problems on parallel machines. Doctoral thesis

    SciTech Connect

    Stech, D.J.

    1990-01-01

    This thesis develops a highly parallel solution method for nonlinear optimal control problems. Balakrishnan's epsilon method is used in conjunction with the Rayleigh-Ritz method to convert the dynamic optimization of the optimal control problem into a static optimization problem. Walsh functions and orthogonal polynomials are used as basis functions to implement the Rayleigh-Ritz method. The resulting static optimization problem is solved using matrix operations which have well defined massively parallel solution methods. To demonstrate the method, a variety of nonlinear optimal control problems are solved. The nonlinear Raleigh problem with quadratic cost and nonlinear van der Pol problem with quadratic cost and terminal constraints on the states are solved in both serial and parallel on an eight processor Intel Hypercube. The solutions using both Walsh functions and Legendre polynomials as basis functions are given. In addition to these problems which are solved in parallel, a more complex nonlinear minimum time optimal control problem and nonlinear optimal control problem with an inequality constraint on the control are solved. Results show the method converges quickly, even from relatively poor initial guesses for the nominal trajectories.

  15. Rethinking the maritime strategy for the 1990s in terms of European security. Master's thesis

    SciTech Connect

    Lyon, W.W.

    1990-03-01

    This thesis reexamines the warfighting component of the Maritime Strategy in light of recent political changes in the communist world as well as recent arms control advances. The following conclusions are reached: first, a Conventional Forces Europe (CFE) agreement and the political changes in Eastern Europe will make mobilization and reinforcement key factors in any future European conflict. Secondly, under the conditions of a START agreement, it will no longer be necessary for the Soviet Union to form protected bastions to guard its SSBNs; seeking out and attacking Soviet SSBNs could be more risky and destabilizing. Thirdly, the START and CFE agreements, combined with improving Soviet submarine technology, will make the likelihood of a Soviet SLOC interdiction campaign much greater in the event of future conflict; the U.S. should adopt a layered defense strategy in response to these developments. Fourth and finally, because of the political difficulties associated with ground-based intermediate-range nuclear forces, the U.S. Navy must be assuming a larger role in providing theater nuclear deterrence in Europe.

  16. The Radical Plasticity Thesis: How the Brain Learns to be Conscious

    PubMed Central

    Cleeremans, Axel

    2011-01-01

    In this paper, I explore the idea that consciousness is something that the brain learns to do rather than an intrinsic property of certain neural states and not others. Starting from the idea that neural activity is inherently unconscious, the question thus becomes: How does the brain learn to be conscious? I suggest that consciousness arises as a result of the brain's continuous attempts at predicting not only the consequences of its actions on the world and on other agents, but also the consequences of activity in one cerebral region on activity in other regions. By this account, the brain continuously and unconsciously learns to redescribe its own activity to itself, so developing systems of meta-representations that characterize and qualify the target first-order representations. Such learned redescriptions, enriched by the emotional value associated with them, form the basis of conscious experience. Learning and plasticity are thus central to consciousness, to the extent that experiences only occur in experiencers that have learned to know they possess certain first-order states and that have learned to care more about certain states than about others. This is what I call the Radical Plasticity Thesis. In a sense thus, this is the enactive perspective, but turned both inwards and (further) outwards. Consciousness involves signal detection on the mind; the conscious mind is the brain's (non-conceptual, implicit) theory about itself. I illustrate these ideas through neural network models that simulate the relationships between performance and awareness in different tasks. PMID:21687455

  17. Random vibration analysis of the Topaz-II nuclear reactor power system. Master`s thesis

    SciTech Connect

    Campbell, S.E.

    1995-06-01

    The TOPAZ-II Ya-21U is one of six Russian made space nuclear power systems which is based on theomionic power conversion. The U.S. is presently analyzing TOPAZ-II to determine the reliability and feasibility of using this system. A structural analysis test was conducted on the TOPAZ unit in May 1993 to provide data from which modal parameters could be identified. This test showed the fundamental frequency to be 10.5 Hz, yet the test results that the Russians conducted identified a fundamental frequency of 5 Hz. Another finite element model was created incorporating new developments in TOPAZ-II and modifications to the finite element model to better simulate the mass properties of the TOPAZ-II2. A second structural analysis test was conducted on the TOPAZ unit 06-09 September 1994. This thesis focuses on the random vibration analysis of the TOPAZ-II Ya-2lU utilizing the most recent test results and the Master Series (updated version) I-DEAS software. The modal respose of the model and simulated random vibration tests were within 8.33%. This model is a feasible tool which can be used to analyze the TOPAZ unit without testing the unit to fatigue.

  18. Design for dependability: A simulation-based approach. Ph.D. Thesis, 1993

    NASA Technical Reports Server (NTRS)

    Goswami, Kumar K.

    1994-01-01

    This research addresses issues in simulation-based system level dependability analysis of fault-tolerant computer systems. The issues and difficulties of providing a general simulation-based approach for system level analysis are discussed and a methodology that address and tackle these issues is presented. The proposed methodology is designed to permit the study of a wide variety of architectures under various fault conditions. It permits detailed functional modeling of architectural features such as sparing policies, repair schemes, routing algorithms as well as other fault-tolerant mechanisms, and it allows the execution of actual application software. One key benefit of this approach is that the behavior of a system under faults does not have to be pre-defined as it is normally done. Instead, a system can be simulated in detail and injected with faults to determine its failure modes. The thesis describes how object-oriented design is used to incorporate this methodology into a general purpose design and fault injection package called DEPEND. A software model is presented that uses abstractions of application programs to study the behavior and effect of software on hardware faults in the early design stage when actual code is not available. Finally, an acceleration technique that combines hierarchical simulation, time acceleration algorithms and hybrid simulation to reduce simulation time is introduced.

  19. Conic Sector Analysis of Hybrid Control Systems. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Thompson, P. M.

    1982-01-01

    A hybrid control system contains an analog plant and a hybrid (or sampled-data) compensator. In this thesis a new conic sector is determined which is constructive and can be used to: (1) determine closed loop stability, (2) analyze robustness with respect to modelling uncertainties, (3) analyze steady state response to commands, and (4) select the sample rate. The use of conic sectors allows the designer to treat hybrid control systems as though they were analog control systems. The center of the conic sector can be used as a rigorous linear time invariant approximation of the hybrid control system, and the radius places a bound on the errors of this approximation. The hybrid feedback system can be multivariable, and the sampler is assumed to be synchronous. Algorithms to compute the conic sector are presented. Several examples demonstrate how the conic sector analysis techniques are applied. Extensions to single loop multirate hybrid feedback systems are presented. Further extensions are proposed for multiloop multirate hybrid feedback system and for single rate systems with asynchronous sampling.

  20. Feasibility of automatic storage reclamation with concurrent program execution in a LISP environment. Master's thesis

    SciTech Connect

    Cassidy, K.G.

    1985-12-01

    Storage reclamation is the process of reclaiming discarded information and returning the memory space occupied by that discarded information to an available area or list in memory that is available to be utilized by programmers. This increased interest in storage reclamation is a result of the increasing use of list-processing environments. A list-processing environment is a system in which the language manipulates data structures called lists. In classical LISP implementations, program execution/computation continues until there is no more memory available (i.e., the free list of available cells has become exhausted). When this happens, user program(s) HALT and then storage reclamation, in the form of garbage collection, takes over. This halting of programs in the midst of their computation is not only frustrating to programmers and researchers but can also be of crucial importance in other applications. This thesis investigates the feasibility of allowing concurrent program execution with garbage collection. LISP has been selected because it has been estimated that typical LISP programs take 10%-30% of their processing time to perform garbage collection.

  1. Error modeling for differential GPS. M.S. Thesis - MIT, 12 May 1995

    NASA Technical Reports Server (NTRS)

    Blerman, Gregory S.

    1995-01-01

    Differential Global Positioning System (DGPS) positioning is used to accurately locate a GPS receiver based upon the well-known position of a reference site. In utilizing this technique, several error sources contribute to position inaccuracy. This thesis investigates the error in DGPS operation and attempts to develop a statistical model for the behavior of this error. The model for DGPS error is developed using GPS data collected by Draper Laboratory. The Marquardt method for nonlinear curve-fitting is used to find the parameters of a first order Markov process that models the average errors from the collected data. The results show that a first order Markov process can be used to model the DGPS error as a function of baseline distance and time delay. The model's time correlation constant is 3847.1 seconds (1.07 hours) for the mean square error. The distance correlation constant is 122.8 kilometers. The total process variance for the DGPS model is 3.73 sq meters.

  2. Design guidelines for a rule-based passive surveillance system. Master's thesis

    SciTech Connect

    Jennings, K.E.

    1986-09-01

    This thesis addresses the application of artificial intelligence to passive surveillance systems that use waveform analysis as their primary means of detecting, classifying, and locating a specific target. Discussion is further limited to those passive surveillance systems which must deal with considerable noise in the data. Present methods, which use visual examination of the waveform data for the detection of target waveforms, is complicated, time consuming, and requires considerable expertise. The lack of prior knowledge of the nature of the noise, (e.g., frequency spectra, amplitude, or dynamics), means that the majority of signal analysis must be done by experts. This study discusses and recommends a rule-based system which uses the following artificial-intelligence structures: the blackboard architecture, and the frames data structure. Sources of uncertainty are also discussed and methods of dealing with it are suggested. This study recommends that the symbolic representation language be carefully selected for conciseness, efficiency, and a vocabulary rich enough to express everything desired by the experts. A learning knowledge source is also recommended.

  3. Failure analysis and modeling of a multicomputer system. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Subramani, Sujatha Srinivasan

    1990-01-01

    This thesis describes the results of an extensive measurement-based analysis of real error data collected from a 7-machine DEC VaxCluster multicomputer system. In addition to evaluating basic system error and failure characteristics, we develop reward models to analyze the impact of failures and errors on the system. The results show that, although 98 percent of errors in the shared resources recover, they result in 48 percent of all system failures. The analysis of rewards shows that the expected reward rate for the VaxCluster decreases to 0.5 in 100 days for a 3 out of 7 model, which is well over a 100 times that for a 7-out-of-7 model. A comparison of the reward rates for a range of k-out-of-n models indicates that the maximum increase in reward rate (0.25) occurs in going from the 6-out-of-7 model to the 5-out-of-7 model. The analysis also shows that software errors have the lowest reward (0.2 vs. 0.91 for network errors). The large loss in reward rate for software errors is due to the fact that a large proportion (94 percent) of software errors lead to failure. In comparison, the high reward rate for network errors is due to fast recovery from a majority of these errors (median recovery duration is 0 seconds).

  4. Recycling decision support system: Design and development of a Web-based DSS. Master thesis

    SciTech Connect

    Tettelbach, C.G.

    1997-03-01

    The explosive growth of the World Wide Web creates new opportunities for the development and deployment of Decision Support Systems. No longer restricted by machine-specific limitations, Web-based Decision Support Systems (DSS) provide global access to widely diversified and geographically dispersed users through sharing of data, models, algorithms, and modeling environments. This thesis examines the design and development processes involved in the creation of a Web-based DSS. The Recycling Decision Support System utilizes a rapid prototype and refinement process to create a Web-based system focusing on supporting ordinary people and industrial users in making good decisions for recycling and disposal of household and industrial waste. Through abstraction of details from the specific Web-based DSS design, a generalized framework for supporting decision-making via the WWW is built which supports functionality in education, queries, and analysis of complex problems. An important aspect of this research is the development of a new architecture which conforms to the complexities specific to Web-based Decision Support Systems. Prompted by the additional interactions required for WWW connectivity, this architecture incorporates agents for negotiating transactions between the functional components of a standard DSS.

  5. Fluid flow and sound generation at hydrothermal vent fields. Doctoral thesis

    SciTech Connect

    Little, S.A.

    1988-04-01

    Several experiments in this thesis examine methods to measure and monitor fluid flow from hydrothermal vent fields. Simultaneous velocity temperature, and conductivity data were collected in the convective flow emanating from a hydrothermal vent field located on the East Pacific rise. The horizontal profiles obtained indicate that the flow field approaches an ideal plume in the temperature and velocity distribution. Such parameters as total heat flow and maximum plume height can be estimated using either the velocity or the temperature information. The results of these independent calculations are in close agreement, yielding a total heat capacity and volume changes slightly alter the calculations applied to obtain these values. In Guaymas Basin, a twelve day time series of temperature data was collected from a point three centimeters above a diffuse hydrothermal flow area. Using concurrent tidal gauge data from the town of Guaymas it is shown that the effects of tidal currents can be strong enough to dominate the time variability of a temperature signal at a fixed point in hydrothermal flow and are a plausible explanation for the variations seen in the Guaymas Basin temperature data. The increase in power due to convected flow inhomogeneities, however, was lower in the near field than expected. Indirect evidence of hydrothermal sound fields showing anomalous high power and low frequency noise associated with vents is due to processes other than jet noise.

  6. Robust control design with real parameter uncertainty using absolute stability theory. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    How, Jonathan P.; Hall, Steven R.

    1993-01-01

    The purpose of this thesis is to investigate an extension of mu theory for robust control design by considering systems with linear and nonlinear real parameter uncertainties. In the process, explicit connections are made between mixed mu and absolute stability theory. In particular, it is shown that the upper bounds for mixed mu are a generalization of results from absolute stability theory. Both state space and frequency domain criteria are developed for several nonlinearities and stability multipliers using the wealth of literature on absolute stability theory and the concepts of supply rates and storage functions. The state space conditions are expressed in terms of Riccati equations and parameter-dependent Lyapunov functions. For controller synthesis, these stability conditions are used to form an overbound of the H2 performance objective. A geometric interpretation of the equivalent frequency domain criteria in terms of off-axis circles clarifies the important role of the multiplier and shows that both the magnitude and phase of the uncertainty are considered. A numerical algorithm is developed to design robust controllers that minimize the bound on an H2 cost functional and satisfy an analysis test based on the Popov stability multiplier. The controller and multiplier coefficients are optimized simultaneously, which avoids the iteration and curve-fitting procedures required by the D-K procedure of mu synthesis. Several benchmark problems and experiments on the Middeck Active Control Experiment at M.I.T. demonstrate that these controllers achieve good robust performance and guaranteed stability bounds.

  7. Investigation of finite element: ABC methods for electromagnetic field simulation. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Chatterjee, A.; Volakis, John L.; Nguyen, J.

    1994-01-01

    The mechanics of wave propagation in the presence of obstacles is of great interest in many branches of engineering and applied mathematics like electromagnetics, fluid dynamics, geophysics, seismology, etc. Such problems can be broadly classified into two categories: the bounded domain or the closed problem and the unbounded domain or the open problem. Analytical techniques have been derived for the simpler problems; however, the need to model complicated geometrical features, complex material coatings and fillings, and to adapt the model to changing design parameters have inevitably tilted the balance in favor of numerical techniques. The modeling of closed problems presents difficulties primarily in proper meshing of the interior region. However, problems in unbounded domains pose a unique challenge to computation, since the exterior region is inappropriate for direct implementation of numerical techniques. A large number of solutions have been proposed but only a few have stood the test of time and experiment. The goal of this thesis is to develop an efficient and reliable partial differential equation technique to model large three dimensional scattering problems in electromagnetics.

  8. Two nonlinear models of the free-electron laser. Master's thesis

    SciTech Connect

    Kiel, D.H.

    1990-11-01

    The dynamics of the Free Electron Laser are governed by Maxwell's equations which causes many highly nonlinear regimes to exist in Free Electron Laser Physics. This thesis will examine two such areas and develop simple models to describe the highly dynamic and rich behavior two of these regimes. In the strong-field, high current regime, the Free Electron Laser driving current can be modeled by a single macroparticle representing the trapped electrons. When the trapped electrons act collectively as a macroparticle, solutions which include synchrotron oscillations can be found for the self-consistent pendulum and wave equations. In an FEL oscillator with low single-pass gain, the evolution of the optical wave can lead to sideband development. This phenomenon is studied by applying Maxwell's equations to an oscillator with two optical modes and deriving a two-mode wave and pendulum equation. The two-mode wave and pendulum equations are implemented numerically on computers so that the onset of the sideband can be explored.

  9. Automated infrared detection of organophosphorus compounds in multicomponent solutions. Master`s thesis

    SciTech Connect

    Schuchardt, D.A.

    1995-12-01

    In-situ monitoring of the environment in peacetime and wartime is required of today`s technology with particular concern toward organophosphorus pesticides and chemical warfare agents. Of the many tools available for monitoring, infrared spectrometry combined with fiber optic sensors is one method of remote sensing which shows promise. This thesis models the problem of automatically detecting organophosphorus chemicals in water and automatically specifying what chemical is present. Computer generated infrared spectra are modeled as well as sensor characteristics and Computer generated infrared spectra are modeled as well as sensor characteristics and instrument noise over various binary mixture concentrations. A standard pattern recognition data reduction technique known as Principle Components Analysis is employed to compute meaningful features for detection of target chemicals in water. Methods of detection of the target chemical include the k-nearest neighbor classifier and Parzen window/maximum a-posteriori probability decision rule. By systematically varying chemical amounts, the order of magnitude of the limit of detection is determined. To determine the detection error bound beyond a simple point estimate of the error, Bayes error bounding is implemented. Once the lower range of detection is determined, k-nearest neighbor tests are done to determine classification of specific target chemicals.

  10. Coded throughput performance simulations for the time-varying satellite channel. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Han, LI

    1995-01-01

    The design of a reliable satellite communication link involving the data transfer from a small, low-orbit satellite to a ground station, but through a geostationary satellite, was examined. In such a scenario, the received signal power to noise density ratio increases as the transmitting low-orbit satellite comes into view, and then decreases as it then departs, resulting in a short-duration, time-varying communication link. The optimal values of the small satellite antenna beamwidth, signaling rate, modulation scheme and the theoretical link throughput (in bits per day) have been determined. The goal of this thesis is to choose a practical coding scheme which maximizes the daily link throughput while satisfying a prescribed probability of error requirement. We examine the throughput of both fixed rate and variable rate concatenated forward error correction (FEC) coding schemes for the additive white Gaussian noise (AWGN) channel, and then examine the effect of radio frequency interference (RFI) on the best coding scheme among them. Interleaving is used to mitigate degradation due to RFI. It was found that the variable rate concatenated coding scheme could achieve 74 percent of the theoretical throughput, equivalent to 1.11 Gbits/day based on the cutoff rate R(sub 0). For comparison, 87 percent is achievable for AWGN-only case.

  11. Soviet Nordic nuclear-weapon free-zone proposal. Master's thesis

    SciTech Connect

    Lumsden, C.A.

    1990-06-01

    This thesis examines the Soviet proposal and its ramifications for the United States and the West. The central theme running through each Soviet proposal has been removal of American nuclear guarantees. Preservation of US national security interests and hence US ability to extend its forward defense would be gravely threatened by such a NWFZ. However, unilateral agreement on a NWFZ is unlikely by the anticipated members of the Nordic NWFZ the US, USSR, Denmark, Norway, Finland, Iceland, Greenland, and Sweden. The US has military installations in Iceland and Greenland and banning of nuclear weapons during wartime is inconceivable. The question then arises as to which nation or groups of nations will dominate and which will acquiesce. Inevitably the debate breaks down to a tug of war between the two superpowers. It is really the politics surrounding the nuclear weapons that is the heart of the nuclear-free-zone debate. Changing world politics demand that the West develop a unified strategy toward the USSR. Through NATO it must preserve its vital economic political and military objectives in the Northern Flank. Flexible naval forces and strong political and economic ties to the governments of the nations bordering the Baltic are essential. Strong NATO naval forces operating in the Baltic Sea must be seen as guarantors of the West's strategic aims and interests. A Nordic NWFZ would prevent this.

  12. Preliminary design of the PANSAT electrical-power subsystem. Master's thesis

    SciTech Connect

    Noble, M.L.

    1990-06-01

    This thesis presents a preliminary design of the electrical power system (EPS) for the Naval Postgraduate School's Petite Amateur Navy Satellite (PANSAT). The EPS is a photovoltaic silicon cell system consisting of solar array, batteries, battery charge regulator (BCR), and dc-dc convertors. The EPS provides power for up to two years of low earth orbit (480 km) operations. The solar array consists of 17 panels with thirty-two 2 {times} 4 cm solar cells in series on each panel. The cells have an efficiency of 14.3% and generate a panel voltage of 14.1 volts at beginning of life, providing an unregulated bus voltage of 13.5 volts. The bus voltage is clamped at a minimum 10.5 volts by two lead acid batteries in parallel with the bus. Each battery consists of five 2.1 volt, 5 ampere-hour lead acid cells and is capable of meeting mission requirements. The BCR monitors individual battery voltage, an indication of reserve capacity, and provides a pulse-modulated charge current alternately to each battery.

  13. Systematics of the auroral boundary as indicated by particle precipitation. Master's thesis

    SciTech Connect

    Phillips, C.D.

    1984-12-01

    This thesis examined several ways of grouping data acquired by the DMSP/F7 satellite's electron and ion spectrometers, and used that data to decide the relationship between the latitude of the equatorward boundary of the electron and ion diffuse aurora. The statistical analysis was done with the SPSS computer package and data from the Special Sensor J/4 on board the Defense Meteorological Satellite Program F7 (Block 5D) spacecraft. The analytic technique used was bivariate linear regression, with the General Linear Test for the equality of two regression lines being used to compare different regression lines. The analysis of precipitating electrons and ions above the polar regions at about 840 kilometers found that the precipitation at different measured boundaries according to their magnetic local times of occurrence. Three hour wide bins were attempted, and were found to be less desirable than one hour wide bins. It was found that measured boundaries from the two poles can be combined in a single regression line.

  14. Experimental optimization of cooling-tower-fan control based on field data. Master's thesis

    SciTech Connect

    Herman, D.L.

    1991-04-01

    Energy costs continue to play an important role in the decision-making process for building design and operation. Since the chiller, cooling tower fans, and associated pumps consume the largest fraction of energy in a heating, ventilating, and air-conditioning (HVAC) system, the control of these components is of major importance in determining building energy use. A significant control parameter for the chilled water system is the minimum entering condenser water set point temperature at which the cooling tower fans are cycled on and off, several studies have attempted to determine the optimum value for this minimum set point temperature, but direct measurements are not available to validate these studies. The purpose of this study was to experimentally determine the optimum minimum entering condenser water set point temperature from field data based on minimum energy consumption and to validate a chilled water system analytical model previously developed in earlier work. The total chiller system electrical consumption (chiller and cooling tower fan energy) was measured for four entering condensor water set point temperatures (70, 75, 80, and 85 deg F). The field results were compared to results obtained using an analytical model previously developed in a thesis entitled Optimized Design of a Commercial Building Chiller/Cooling Tower System, written by Joyce.

  15. Study of mid-latitude 5577A CI dayglow emissions. Doctoral thesis

    SciTech Connect

    Hume, E.E.

    1992-01-01

    Summary of thesis: The green line (5577angstroms) is a bright, persistent component of the visible airglow. It is produced by an electric quadruple transition from the metastable second excited state (1So) to the first excited state (1D2) of atomic oxygen. These two excited states all lie in the same electron shell of the atom and have the same electron configuration as the ground state of 1s22s22p4, which is the 3P2,1,0. This emission is present in both the daytime and night airglow and in the aurora, and despite a long history of study it is still not fully understood. The emission in the dayglow and the nightglow is relatively homogeneous spatially and global in coverage. In the aurora, the emission is much brighter than the airglow, high structured and very localized being restricted to higher latitudes. The structure of the 5577angstroms emission with altitude and the chemistry responsible for the production of the emission are complex. The vertical structure for the emission has two distinct layers in the airglow each with its own set of production and loss mechanisms. the chemistry for either of these layers is not completely known. The auroral emission is not understood either since it overlaps the upper and lower layer altitudes and it tends to contain some parts of the chemistry of both layers as sources and losses.

  16. Determination of algorithm parallelism in NP-complete problems for distributed architectures. Master's thesis

    SciTech Connect

    Beard, R.A.

    1990-03-01

    The purpose of this thesis is to explore the methods used to parallelize NP-complete problems and the degree of improvement that can be realized using a distributed parallel processor to solve these combinatoric problems. Common NP-complete problem characteristics such as a priori reductions, use of partial-state information, and inhomogeneous searches are identified and studied. The set covering problem (SCP) is implemented for this research because many applications such as information retrieval, task scheduling, and VLSI expression simplification can be structured as an SCP problem. In addition, its generic NP-complete common characteristics are well documented and a parallel implementation has not been reported. Parallel programming design techniques involve decomposing the problem and developing the parallel algorithms. The major components of a parallel solution are developed in a four phase process. First, a meta-level design is accomplished using an appropriate design language such as UNITY. Then, the UNITY design is transformed into an algorithm and implementation specific to a distributed architecture. Finally, a complexity analysis of the algorithm is performed. the a priori reductions are divided-and-conquer algorithms; whereas, the search for the optimal set cover is accomplished with a branch-and-bound algorithm. The search utilizes a global best cost maintained at a central location for distribution to all processors. Three methods of load balancing are implemented and studied: coarse grain with static allocation of the search space, fine grain with dynamic allocation, and dynamic load balancing.

  17. Nuclear proliferation and the stability-instability paradox. Master`s thesis

    SciTech Connect

    Barretta, M.A.

    1995-06-01

    This thesis tests the theory that nuclear proliferation might enhance strategic stability by making the use of military force between possessors of nuclear weapons unlikely. It discusses the existing literature on deterrence and nonproliferation, emphasizing the stability-instability paradox. The stability-instability paradox offers an alternative to the optimism of deterrence logic, which views nuclear weapons as a beneficial and stabilizing force, and the pessimism of nonproliferation, which foresees dire consequences in the spread of nuclear weapons. The paradox is a synthesis of deterrence and nonproliferation logic because it allows for the coexistence of nuclear peace and lower levels of conventional war. Three cases of nuclear rivalry are examined. They are the United States and the Soviet Union, the Soviet Union and the People`s Republic of China, and India and Pakistan. These cases provide evidence that challenges the Waltzian argument that nuclear weapons enhance international stability by forbidding violent response to confrontations between nuclear-armed states. Nuclear powers that have employable conventional forces at their disposal, a territorial interest at stake, and exist in a condition of nuclear stalemate can, and do, engage in conventional warfare.

  18. Net effect of many gravitational fields on the intensity of celestial light sources. Master's thesis

    SciTech Connect

    Cipperly, G.E.

    1982-12-01

    This thesis investigates the lens-like action of the gravitational fields of celestial bodies, which can alter the apparent intensity of more distant sources. Previous work in this area has shown that the chance of an individual body being sufficiently well aligned with a source to cause a very large gravitational intensity change is small. The issue addressed in this study is the possibility of there being a significant total change in the intensity of a source due to the combined effects of the gravitational fields of all celestial bodies, and in particular, the potential impact on intensity distance measurements, that is, determination of the distances of celestial light sources by means of intensity comparisons. It is first shown that the problem can be treated in flat space by associating an appropriate index of refraction with gravitational fields. A wave approach is taken in deriving the total deflection of a ray by the field of a single point mass. A statistical analysis is then performed to determine the expression for the mean total change in the intensity of celestial light sources due to the combined fields of all intervening bodies.

  19. Empirical evaluation of analytical models for parallel relational data-base queries. Master's thesis

    SciTech Connect

    Denham, M.C.

    1990-12-01

    This thesis documents the design and implementation of three parallel join algorithms to be used in the verification of analytical models developed by Kearns. Kearns developed a set of analytical models for a variety of relational database queries. These models serve as tools for the design of parallel relational database system. Each of Kearns' models is classified as either single step or multiple step. The single step models reflect queries that require only one operation while the multiple step models reflect queries that require multiple operations. Three parallel join algorithms were implemented based upon Kearns' models. Two are based upon single step join models and one is based upon a multiple step join model. They are implemented on an Intel iPSC/1 parallel computer. The single step join algorithms include the parallel nested-loop join and the bucket (or hash) join. The multiple step algorithm that was implemented is a pipelined version of the bucket join. The results show that within the constraints of the test cases run, the three models are all at least accurate to within about 8.5% and they should prove useful in the design of parallel relational database systems.

  20. Math: Basic Skills Content Standards

    ERIC Educational Resources Information Center

    CASAS - Comprehensive Adult Student Assessment Systems (NJ1), 2008

    2008-01-01

    This document presents content standards tables for math. [CASAS content standards tables are designed for educators at national, state and local levels to inform the alignment of content standards, instruction and assessment. The Content Standards along with the CASAS Competencies form the basis of the CASAS integrated assessment and curriculum…

  1. Reminiscing about thesis work with E T Jaynes at Stanford in the 1950s

    NASA Astrophysics Data System (ADS)

    Cummings, Frederick W.

    2013-11-01

    Abstract A short personal and historical account of the field of radiation interacting with (two-level) atoms is given. Subsequent to 1963, developments and extensions have been extensive and fruitful. One of the most fortunate changes in my life came in late 1957. I was looking for a thesis advisor, after two years of graduate course-work at Stanford. I chanced to see a notice of an upcoming lecture by a professor named Edwin T Jaynes. I could not understand from the announcement what he intended to talk about, but I was searching; I went to find out. That decision was a very lucky one. Ed was talking about a subject that inspired him then, and had been for many years, namely his concept of 'Max-Ent'. 'Maximum-Entropy' is a subject now close to my heart also. Ed's very-clear, well-thought-out papers, spread over many subsequent years, are transforming the field of probability (albeit too gradually) to the 'subjective' outlook of Bayes. (A recent book 'Maximum Entropy and Ecology' [1] will probably convert many nay-sayers to 'Max-Ent'.) I went into Ed's office (late 1957) and asked if I could work with him on a thesis. Did he have a problem for me? Yes, he did. Somewhat to my surprise, he asked me to look into the 'maser problem', involving a comparison of the semi-classical theory of radiation to a proper quantum treatment. To make a two-year story short, Ed's guidance was expert. (I imagine that if another of Ed's students (e.g. Joe Eberly) had come into his office fifteen minutes before me, the 'Jaynes-Cummings' (J-C) model would now perhaps be called otherwise, e.g., the 'J-E' model). In the two-year time frame (~1958-60), Ed had a number of other PhD dissertation students whom I knew; these included Joe Eberly, Doug Scalapino, Baldwin Robertson, Larry Davis and Mike Duggan. My thesis work under Ed reminds me of a story about Michelangelo and his famous 'Pieta'. Michelangelo was an old man about then, so he hired a young craftsman to do much of the physical work: 'chip here, carve there, cut off here, eliminate this, etc'. When the beautiful Pieta was finished, the young man was heard to say, 'I didn't realize before this that I was so talented'. Experiments by Clauser in 1972 on Bell's inequalities (e.g. [2]) showed them to be correct, and indicated that semi-classical alternatives to quantum electrodynamics were not viable. Working with Stuart Freedman, these were the first experimental tests of the predictions of Bell's theorem, the first observation of quantum entanglement, as well as the first experimental observation of a violation of a Bell inequality. The perturbation formulation of quantum radiation theory has long been rife with vexing infinities. Ed always insisted that only experiment can end an argument, so he and his students had been sensibly exploring semi-classical theory. This was not only because of the serious failings of standard QED, but more importantly because of the fact that (an improved) semi-classical theory was able to predict both spontaneous emission, with the correct Einstein coefficients, and the Lamb shift. These two effects have long been thought only possible in the quantum radiation domain (cf [3]). Ed readily accepted losing his bet with Franken about what experiment had to say about the Lamb shift. What is clear is that this bet of 50 with Peter Franken stimulated so much subsequent research that this bet played an important role in generally furthering the field of quantum optics. How did 'J-C' come to be published as it did in the IEEE [4]? Ed was not well known for the extravagant use of words, rather for paucity, clarity and economy. After about two years of working with Ed, he said to me one day, 'You have enough, write it up'. He also said 'We should publish'. (This was around early 1960). About this same time, I was contacted by someone from a new research lab just starting in Newport Beach, California (called 'Aeroneutronic', a division of Ford), asking if I would come to work there. I thought it sounded about right as an approximately two-three year position: repay some debts and look around at other possibilities (especially academe?). I left around June 1960 to take up this position in the research lab in Newport Beach. At about this same time (~late 1959), Ed was moving to his new 'chair' at Washington University in St Louis. I proceeded as quickly as I could to put together a thesis after arriving in Newport Beach; I wrote about what I had done, as best as I could in my naiveté about such undertakings. I wrote of the work I had done under Ed's kind and patient guidance for the two years in Palo Alto. I soon remembered that Ed had done a recent Stanford Microwave Lab report on our project; his writing was so much better than mine that I thought it witless to put out something as 'uneven' as I had written by then. At just this time that I was cobbling together a thesis, a consultant at Aeroneutronic, Jay Singer of UC Berkeley EE department, approached me in the hall, (no tele-commuting then!) asking if I might have something to contribute to a special issue of a journal of the IEEE he was editing, on the subject of 'Quantum Electronics'. (Comment: One of the earliest predecessors to the MRI, Jay Singer was then measuring the blood flow in rat tails and human arms; he holds two key MRI patents). I said I thought I did have something. The journal sounded appropriate, so I soon handed my 'thesis' to Jay, put Ed's name first (of course, since it consisted so largely of his words from the Microwave Lab report, but also since Ed was my 'guru'), ...and that was that...done [4]. From my perspective, it seemed to subsequently sink to the bottom of the sea, not to be seen by me again for many years until the elegant Walther-Rempe-Klein (WRK) experiments of 1987 on long-time coherent radiative behavior appeared [5]. They confirmed the long-time quantum-theoretical results of Eberly, Narozhny and Sanchez-Mondragon [6]. Bob Buley and I, while at Aeroneutronic, had published in the field of lasers [7], based on the J-C model. We found very strange, puzzling 'chaotic' output of a 'Q-switched' laser. When computer time-steps were changed, the chaos didn't disappear. It was about then (~June 1963) that both Bob and I headed elsewhere: I to the early-forming UC Riverside Physics Department as Assistant Professor, and Bob to a company in Santa Barbara. Our work on the mysterious 'chaotic' laser effect then ended (the term 'chaos' was not yet in the physics lexicon); Bob was the computer expert, our non-linear laser problem demanded rigorous numerical computations, and I was not savvy with the (then) 'refrigerator-sized' computers at UCR. P W Milonni has greatly extended this work (cf [8]). Mike Tavis, my graduate student at UCR around 1965, extended the J-C model to N atoms [9]. (We have more recently collaborated in a further study of this and other extensions of J-C.) The silence and zero feedback from the 'J-C', Buley and 'T-C' papers for so many years following 1965 was a bit deafening, so I thought it would be best that I go mostly onto other topics. One day in about 1989, I got a tap on the shoulder from a colleague at UCR: 'I saw your name in the title of a paper'. ('Huh?'). An astonishing number of exciting and important new topics have emerged since the 1987 WRK experiment, providing an ever-branching tree of both new theory and experiment. It is tempting to entitle this piece as 'Get your name in print: Diagonalize a 2 × 2'. References [1] Harte J 2011 Maximum Entropy and Ecology: A Theory of Abundance, Distribution, and Energetics (Oxford Series in Ecology and Evolution) (Oxford: Oxford University Press) [2] Freedman S J and Clauser J F 1972 Experimental test of local hidden-variable theories Phys. Rev. Lett. 28 938 [3] Stroud C R Jr and Jaynes E T 1970 Long-term solutions in semiclassical radiation theory Phys. Rev. A 1 106 [4] Jaynes E T and Cummings F W 1963 Comparison of quantum and semiclassical radiation theories with application to the beam maser Proc. IEEE 51 89 [5] Rempe G, Walther H and Klein N 1987 Observation of quantum collapse and revival in a one-atom maser Phys. Rev. Lett. 58 353 [6] Eberly J H, Narozhny N B and Sanchez-Mondragon J J 1980 Periodic spontaneous collapse and revival in a simple quantum Phys. Rev. Lett. 44 1323 [7] Buley E R and Cummings F W 1964 Dynamics of a system of N atoms interacting with a radiation field Phys. Rev. 134 A1454 [8] Milonni P W, Shin M-L and Ackerhalt J R 1987 Chaos in Laser-Matter Interactions (Singapore: World Scientific) [9] Tavis M and Cummings F W 1968 Exact solution for an N -molecule—radiation-field Hamiltonian Phys. Rev. 170 379

  2. Inorganic contents of peats

    SciTech Connect

    Raymond, R. Jr.; Bish, D.L.; Cohen, A.D.

    1988-02-01

    Peat, the precursor of coal, is composed primarily of plant components and secondarily of inorganic matter derived from a variety of sources. The elemental, mineralogic, and petrographic composition of a peat is controlled by a combination of both its botanical and depositional environment. Inorganic contents of peats can vary greatly between geographically separated peat bogs as well as vertially and horizontally within an individual bog. Predicting the form and distribution of inorganic matter in a coal deposit requires understanding the distribution and preservation of inorganic matter in peat-forming environments and diagenetic alterations affecting such material during late-stage peatification and coalification processes. 43 refs., 4 figs., 3 tabs.

  3. Personalized professional content recommendation

    SciTech Connect

    Xu, Songhua

    2015-11-05

    A personalized content recommendation system includes a client interface configured to automatically monitor a user's information data stream transmitted on the Internet. A hybrid contextual behavioral and collaborative personal interest inference engine resident to a non-transient media generates automatic predictions about the interests of individual users of the system. A database server retains the user's personal interest profile based on a plurality of monitored information. The system also includes a server programmed to filter items in an incoming information stream with the personal interest profile and is further programmed to identify only those items of the incoming information stream that substantially match the personal interest profile.

  4. Content addressable memory project

    NASA Technical Reports Server (NTRS)

    Hall, J. Storrs; Levy, Saul; Smith, Donald E.; Miyake, Keith M.

    1992-01-01

    A parameterized version of the tree processor was designed and tested (by simulation). The leaf processor design is 90 percent complete. We expect to complete and test a combination of tree and leaf cell designs in the next period. Work is proceeding on algorithms for the computer aided manufacturing (CAM), and once the design is complete we will begin simulating algorithms for large problems. The following topics are covered: (1) the practical implementation of content addressable memory; (2) design of a LEAF cell for the Rutgers CAM architecture; (3) a circuit design tool user's manual; and (4) design and analysis of efficient hierarchical interconnection networks.

  5. Personalized professional content recommendation

    DOEpatents

    Xu, Songhua

    2015-10-27

    A personalized content recommendation system includes a client interface configured to automatically monitor a user's information data stream transmitted on the Internet. A hybrid contextual behavioral and collaborative personal interest inference engine resident to a non-transient media generates automatic predictions about the interests of individual users of the system. A database server retains the user's personal interest profile based on a plurality of monitored information. The system also includes a server programmed to filter items in an incoming information stream with the personal interest profile and is further programmed to identify only those items of the incoming information stream that substantially match the personal interest profile.

  6. The Heritage of Herding and Southern Homicide: Examining the Ecological Foundations of the Code of Honor Thesis

    ERIC Educational Resources Information Center

    Baller, Robert D.; Zevenbergen, Matthew P.; Messner, Steven F.

    2009-01-01

    The authors examine the ecological foundations of the thesis of a "code of honor" as an explanation for southern homicide. Specifically, they consider the effects of indicators of ethnic groups that migrated from herding economies (the Scotch-Irish), cattle and pig herding, and the relative importance of agricultural production across different…

  7. The Heritage of Herding and Southern Homicide: Examining the Ecological Foundations of the Code of Honor Thesis

    ERIC Educational Resources Information Center

    Baller, Robert D.; Zevenbergen, Matthew P.; Messner, Steven F.

    2009-01-01

    The authors examine the ecological foundations of the thesis of a "code of honor" as an explanation for southern homicide. Specifically, they consider the effects of indicators of ethnic groups that migrated from herding economies (the Scotch-Irish), cattle and pig herding, and the relative importance of agricultural production across different

  8. Brotherhood or Brothers in the "Hood"? Debunking the "Educated Gang" Thesis as Black Fraternity and Sorority Slander

    ERIC Educational Resources Information Center

    Hughey, Matthew W.

    2008-01-01

    In this article the author explores the controversial thesis that African American Collegiate Fraternities and Sororities, also known as Black Greek Letter Organizations (BGLOs), are "educated gangs". First, the author examines this polemic as a "truth claim" and compares BGLOs and gangs through: (1) hazing; (2) rape and substance abuse; (3)…

  9. The Relation between Feedback Perceptions and the Supervisor-Student Relationship in Master's Thesis Projects

    ERIC Educational Resources Information Center

    de Kleijn, Renske A. M.; Meijer, Paulien C.; Pilot, Albert; Brekelmans, Mieke

    2014-01-01

    Research supervision can be investigated from social-emotional and cognitive perspectives, but most studies include only one perspective. This study aims to understand the interplay between a social-emotional (supervisor-student relationship) and cognitive (feedback) perspective on the outcomes of master's thesis supervision in specific, by

  10. Brotherhood or Brothers in the "Hood"? Debunking the "Educated Gang" Thesis as Black Fraternity and Sorority Slander

    ERIC Educational Resources Information Center

    Hughey, Matthew W.

    2008-01-01

    In this article the author explores the controversial thesis that African American Collegiate Fraternities and Sororities, also known as Black Greek Letter Organizations (BGLOs), are "educated gangs". First, the author examines this polemic as a "truth claim" and compares BGLOs and gangs through: (1) hazing; (2) rape and substance abuse; (3)

  11. The Relation between Feedback Perceptions and the Supervisor-Student Relationship in Master's Thesis Projects

    ERIC Educational Resources Information Center

    de Kleijn, Renske A. M.; Meijer, Paulien C.; Pilot, Albert; Brekelmans, Mieke

    2014-01-01

    Research supervision can be investigated from social-emotional and cognitive perspectives, but most studies include only one perspective. This study aims to understand the interplay between a social-emotional (supervisor-student relationship) and cognitive (feedback) perspective on the outcomes of master's thesis supervision in specific, by…

  12. Getting Personal--What Does It Mean? A Critical Discussion of the Personal Dimension of Thesis Supervision in Higher Education

    ERIC Educational Resources Information Center

    Bengtsen, Soren S. E.

    2011-01-01

    The argument of the article is that contemporary research into thesis supervision overlooks important didactical features of the supervisory dialogue because of its focus on general pedagogical categories. Entailing this argument I suggest that the personal dimension should be seen not only as a means to enhanced communication between supervisor

  13. Peer Portal: Quality Enhancement in Thesis Writing Using Self-Managed Peer Review on a Mass Scale

    ERIC Educational Resources Information Center

    Aghaee, Naghmeh; Hansson, Henrik

    2013-01-01

    This paper describes a specially developed online peer-review system, the Peer Portal, and the first results of its use for quality enhancement of bachelor's and master's thesis manuscripts. The peer-review system is completely student driven and therefore saves time for supervisors and creates a direct interaction between students without…

  14. Getting used to academic public speaking: global self-esteem predicts habituation in blood pressure response to repeated thesis presentations.

    PubMed

    Elfering, Achim; Grebner, Simone

    2012-06-01

    Global self-esteem was tested to predict quicker cardiovascular adaptation during stressful oral thesis presentation and faster habituation from the first to the second and third thesis presentations. Nineteen graduate students initially rated their global self-esteem and afterwards orally presented their theses proposals in 20-min presentations to their thesis supervisor and peers. A second and third presentation of the revised thesis concepts took place at 4-weeks intervals. Ambulatory blood pressure and heart rate were assessed repeatedly during the presentations. Post-talk self ratings of stressfulness indicated presentations to be a strong public speaking stressor. One hundred and thirty-eight measurements of systolic (SBP), diastolic blood pressure (DBP), and heart rate (HR) showed a significant adaptation (decrease) during presentations. There was an overall mean level decrease from the first to the second, and the second to the third presentations in HR, but not in SBP and DBP. However, habituation in SBP and DBP across three presentations was significantly faster (p < .05) in those participants who initially reported higher levels of global self-esteem. Higher global self-esteem did not foster adaptation within the presentations. Self-esteem is discussed as an important individual resource that allows successful coping with recurring evaluative threats. PMID:22392261

  15. Getting Personal--What Does It Mean? A Critical Discussion of the Personal Dimension of Thesis Supervision in Higher Education

    ERIC Educational Resources Information Center

    Bengtsen, Soren S. E.

    2011-01-01

    The argument of the article is that contemporary research into thesis supervision overlooks important didactical features of the supervisory dialogue because of its focus on general pedagogical categories. Entailing this argument I suggest that the personal dimension should be seen not only as a means to enhanced communication between supervisor…

  16. Bernstein and the Explanation of Social Disparities in Education: A Realist Critique of the Socio-Linguistic Thesis

    ERIC Educational Resources Information Center

    Nash, Roy

    2006-01-01

    Can an explanation of the origins of social disparities in educational achievement be assisted by a critical examination of Bernstein's sociology? This central question is approached by a consideration of the status of Bernstein's socio-linguistic thesis. The focus is on the nature of the explanations provided. The paper asks: What is the…

  17. The Advanced Interdisciplinary Research Laboratory: A Student Team Approach to the Fourth-Year Research Thesis Project Experience

    ERIC Educational Resources Information Center

    Piunno, Paul A. E.; Boyd, Cleo; Barzda, Virginijus; Gradinaru, Claudiu C.; Krull, Ulrich J.; Stefanovic, Sasa; Stewart, Bryan

    2014-01-01

    The advanced interdisciplinary research laboratory (AIRLab) represents a novel, effective, and motivational course designed from the interdisciplinary research interests of chemistry, physics, biology, and education development faculty members as an alternative to the independent thesis project experience. Student teams are assembled to work

  18. Guide to the Successful Thesis and Dissertation. A Handbook for Students and Faculty. Third Edition, Revised and Expanded.

    ERIC Educational Resources Information Center

    Mauch, James E.; Birch, Jack W.

    This book is designed to help students understand the details of the thesis or dissertation (T/D) process and to provide faculty with an instructional tool to use in seminars on research and with advisees. Ten chapters cover the following areas : (1) the meaning and purpose of the T/D and the characteristics of high-quality student research; (2)…

  19. The Advanced Interdisciplinary Research Laboratory: A Student Team Approach to the Fourth-Year Research Thesis Project Experience

    ERIC Educational Resources Information Center

    Piunno, Paul A. E.; Boyd, Cleo; Barzda, Virginijus; Gradinaru, Claudiu C.; Krull, Ulrich J.; Stefanovic, Sasa; Stewart, Bryan

    2014-01-01

    The advanced interdisciplinary research laboratory (AIRLab) represents a novel, effective, and motivational course designed from the interdisciplinary research interests of chemistry, physics, biology, and education development faculty members as an alternative to the independent thesis project experience. Student teams are assembled to work…

  20. Effects of cobalt on the microstructure of Udimet 700. M.S. Thesis Final Report

    NASA Technical Reports Server (NTRS)

    Engel, M. A.

    1982-01-01

    Cobalt, a critical and "strategic" alloying element in many superalloys, was systematically substituted by nickel in experimental alloys Udimet 700 containing 0.1, 4.3, 8.6, 12.8 and the standard 17.0 wt.% cobalt. Electrolytic and chemical extraction techniques, X-ray diffraction, scanning electron and optical microscopy were used for the microstructural studies. The total weight fraction of gamma' was not significantly affected by the cobalt content, although a difference in the size and quantities of the primary and secondary gamma' phases was apparent. The lattice parameters of the gamma' were found to increase with increasing cobalt content while the lattice mismatch between the gamma matrix and gamma' phases decreased. Other significant effects of cobalt on the weight fraction, distribution and formation of the carbide and boride phases as well as the relative stability of the experimental alloys during long-time aging are also discussed.

  1. A nonlinear thermoviscoelastic stress and fracture analysis of an adhesive bond. Ph.D. Thesis

    SciTech Connect

    Duong, C.N.

    1994-12-31

    The evolution of residual stresses resulting from cooling an adhesive bond configuration on its lateral surfaces at a constant rate through the glass transition of the polymer are considered. A nonlinear, viscoelastic (free-volume) model serves for the thermoviscoelastic characterization of the polymer. Both an infinite (one-dimensional) and a finite (two dimensional) domain are studied. A `critical` cooling time exists, in the present case on the order of a few seconds, which separates the control of the solidification process according to whether the relaxation or thermal diffusion time scale governs. The short time `quenching process,` i.e., when the time scale is governed by thermal diffusion, leads to essentially constant residual stresses. Slower cooling increasingly invokes the time and rate sensitive properties of the polymer and leads to monotonically decreasing residual stresses with longer cooling times. To reduce residual stresses by a factor of two from their maximal values requires cooling times on the order of one or two days. Apart from singular behavior of the stress components in the two-dimensionally finite domain `quenching` has the effect of producing significantly different stress distributions (including stress `spikes`) than slow or thermoelastic analyses would suggest. Implications of these results for systems possessing geometric and material differences subjected to various thermal cooling ranges are also discussed. In the second part of the thesis the effect of the residual stresses on fracture behavior of an adhesive bond are addressed within the context of linear fracture mechanics for dissimilar materials. The crack faces are found to be in contact at the fractured end during the (residually stress) unloading process. A significantly error results if this contact zone is not taken into account. The combined effect of the mechanical loads and the residual stresses on the energy release rate is also studied.

  2. Marine microbial production of dimethylsulfide from dissolved dimethylsulfoniopropionate. Ph. D. Thesis

    SciTech Connect

    Ledyard, K.M.

    1993-02-01

    Dimethylsulfide (DMS) plays a central role in the transfer of sulfur from the ocean to the atmosphere and ultimately to land. The most abundant volatile organosulfur compound in seawater, DMS is believed to account for the bulk of the sea-to-air biogenic sulfur flux. DMS has also been implicated as the major precursor of submicron-sized sulfate aerosol over the ocean. This aerosol acts as an effective site for cloud droplet condensation suggesting a possibly important role for DMS in marine cloud formation. In the ocean, the precursor of DMS is presumed to be the zwitterionic sulfonium compound dimethylsulfoniopropionate (DMSP), a common osmoticum in certain classes of marine algae. While some algae can cleave DMSP intracellularly to form DMS, correlation of DMS concentrations with indicators of algal productivity on a local scale is poor. This thesis focuses on an alternative pathway of DMS formation: microbial cleavage of dissolved (extracellular) DMSP. In laboratory studies, bacteria able to cleave DMSP to form DMS were isolated from seawater by a DMSP enrichment technique, and the kinetics of DMSP uptake and DMS production were examined closely in pure cultures of a bacterial isolate from the Sargasso Sea. The isolate could grow with both DMSP and acrylic acid, one of the products of DMSP cleavage, as the sole source of carbon and energy, and the enzyme catalyzing DMSP cleavage appeared to be induced by both of these compounds. Kinetic parameters were estimated for DMSP uptake and cleavage by whole cells. Comparison of the 16S rRNA sequence of this isolate with that of known eubacteria showed that it was most closely related to Erythrobacter longus, an aerobic, bacteriochlorophyll-containing member of the alpha proteobacteria.

  3. Efficient modeling of interconnects and capacitive discontinuities in high-speed digital circuits. Thesis

    NASA Technical Reports Server (NTRS)

    Oh, K. S.; Schutt-Aine, J.

    1995-01-01

    Modeling of interconnects and associated discontinuities with the recent advances high-speed digital circuits has gained a considerable interest over the last decade although the theoretical bases for analyzing these structures were well-established as early as the 1960s. Ongoing research at the present time is focused on devising methods which can be applied to more general geometries than the ones considered in earlier days and, at the same time, improving the computational efficiency and accuracy of these methods. In this thesis, numerically efficient methods to compute the transmission line parameters of a multiconductor system and the equivalent capacitances of various strip discontinuities are presented based on the quasi-static approximation. The presented techniques are applicable to conductors embedded in an arbitrary number of dielectric layers with two possible locations of ground planes at the top and bottom of the dielectric layers. The cross-sections of conductors can be arbitrary as long as they can be described with polygons. An integral equation approach in conjunction with the collocation method is used in the presented methods. A closed-form Green's function is derived based on weighted real images thus avoiding nested infinite summations in the exact Green's function; therefore, this closed-form Green's function is numerically more efficient than the exact Green's function. All elements associated with the moment matrix are computed using the closed-form formulas. Various numerical examples are considered to verify the presented methods, and a comparison of the computed results with other published results showed good agreement.

  4. Polar cap auroral arcs: Observations, theories, and a numerical model. Ph.D. Thesis

    SciTech Connect

    Berg, G.A.

    1993-01-01

    This thesis reports the results of probably the most completely documented study of auroras near the polar cap boundary performed to date. Three fully instrumented rockets flew into the morning sector of the polar cap, complemented on the ground by a digital all-sky camera and incoherent scatter radar. Additionally, DMSP satellite passes over the polar cap bracketed the launches. The authors use these data to address two main issues: (1) the relationship between the state of the magnetosphere and the formation of polar cap arcs, and (2) the character of the current systems associated with polar cap arcs. The data indicate that in a decaying magnetosphere sun-aligned arcs erupt into the polar cap at high velocity from regions of enhanced brightness in the auroral oval. Two bright polar cap arcs formed in this manner in the region sampled by the rockets. The most equatorward of the arcs, sampled by two of the rockets during its lifetime, erupted into a region already characterized by strong sunward convection. The most poleward, however, which formed after the rockets had passed, pushed into a region where anti-sunward convection pertained less than two minutes earlier. It is likely that the boundary between sunward and anti-sunward convection shifted poleward so that sunward convection pertained at this arc as well. The formation of polar cap arcs may be tied closely to the reconfiguration of the magnetosphere into a system characterized by a smaller polar cap. One of the payloads measured, with high resolution, both E and delta B as well as energetic particle flux. This permitted an in-depth study of the current systems flown through. The correlation between delta E and delta B is classic, both fields indicating upward field-aligned currents in virtually every region of enhanced electron precipitation. However, the currents deduced from the electrons do not agree in magnitude with those deduced from the fields.

  5. Finding the right doctoral thesis an innovative research fair for medical students

    PubMed Central

    Steffen, Julius; Grabbert, Markus; Pander, Tanja; Gradel, Maximilian; Khler, Lisa-Maria; Fischer, Martin R.; von der Borch, Philip; Dimitriadis, Konstantinos

    2015-01-01

    Introduction: The importance of research, as promoted by the CanMEDS framework, is widely acknowledged. Many medical students in Germany work on a research project as part of their doctoral thesis whilst still going to medical school. However, a significant amount of projects are abandoned unfinished, which leads to substantial wastage of resources. One reason for this is an information deficit concerning undergraduate research projects. Project description: To counteract this, we introduced an annual event at LMU Munich called DoktaMed with more than 600 visitors each year. It combines medical convention and research fair including keynote lectures, workshops and poster sessions as well as an exhibition of research groups and institutes. DoktaMed is a peer-to-peer event organized by a team of 40 students. Results: A needs analysis before its implementation underlined the information deficit as a possible cause for the high rate of abandoned projects. In the annual evaluation, visitors of DoktaMed rate the event with an average grade of 2.1 on a six-level Likert scale (n=558, SD=1.06, with "1=very good", "6=poor"). They stated to now feel better informed about the topic and regarded visiting DoktaMed as a worthwhile investment of time. Discussion: Students are generally satisfied with the event and feel better informed after visiting DoktaMed. However, many students never visit DoktaMed for various reasons. A possible improvement would be to present a greater number of clinical studies in addition to the laboratory work that DoktaMed focuses on now. Conclusion: Evaluation after six years of DoktaMed is very promising. Visitors seem to be better informed. Nevertheless there is space for improvement in order to get more students and more faculty members involved. More studies are needed to assess long-term effects. PMID:26413167

  6. On recursive least-squares filtering algorithms and implementations. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Hsieh, Shih-Fu

    1990-01-01

    In many real-time signal processing applications, fast and numerically stable algorithms for solving least-squares problems are necessary and important. In particular, under non-stationary conditions, these algorithms must be able to adapt themselves to reflect the changes in the system and take appropriate adjustments to achieve optimum performances. Among existing algorithms, the QR-decomposition (QRD)-based recursive least-squares (RLS) methods have been shown to be useful and effective for adaptive signal processing. In order to increase the speed of processing and achieve high throughput rate, many algorithms are being vectorized and/or pipelined to facilitate high degrees of parallelism. A time-recursive formulation of RLS filtering employing block QRD will be considered first. Several methods, including a new non-continuous windowing scheme based on selectively rejecting contaminated data, were investigated for adaptive processing. Based on systolic triarrays, many other forms of systolic arrays are shown to be capable of implementing different algorithms. Various updating and downdating systolic algorithms and architectures for RLS filtering are examined and compared in details, which include Householder reflector, Gram-Schmidt procedure, and Givens rotation. A unified approach encompassing existing square-root-free algorithms is also proposed. For the sinusoidal spectrum estimation problem, a judicious method of separating the noise from the signal is of great interest. Various truncated QR methods are proposed for this purpose and compared to the truncated SVD method. Computer simulations provided for detailed comparisons show the effectiveness of these methods. This thesis deals with fundamental issues of numerical stability, computational efficiency, adaptivity, and VLSI implementation for the RLS filtering problems. In all, various new and modified algorithms and architectures are proposed and analyzed; the significance of any of the new method depends crucially on specific application.

  7. Biological sources and sinks of methane in tropical habitats and tropical atmospheric chemistry. Doctoral thesis

    SciTech Connect

    Keller, M.M.

    1990-01-01

    The contents of this study include: two methods for measuring methane emission from a tropical lake; methane emission by bubbling from Gatun Lake, Panama; methane emission from wetlands in central Panama; consumption of atmospheric methane in soils of central Panama: effects of agricultural development; a seasonal study of soil-atmosphere methane, carbon dioxide, and 222Rn flux in a tropical moist forest; and the effects of tropical deforestation on global and regional atmospheric chemistry.

  8. Content addressable memory project

    NASA Technical Reports Server (NTRS)

    Hall, Josh; Levy, Saul; Smith, D.; Wei, S.; Miyake, K.; Murdocca, M.

    1991-01-01

    The progress on the Rutgers CAM (Content Addressable Memory) Project is described. The overall design of the system is completed at the architectural level and described. The machine is composed of two kinds of cells: (1) the CAM cells which include both memory and processor, and support local processing within each cell; and (2) the tree cells, which have smaller instruction set, and provide global processing over the CAM cells. A parameterized design of the basic CAM cell is completed. Progress was made on the final specification of the CPS. The machine architecture was driven by the design of algorithms whose requirements are reflected in the resulted instruction set(s). A few of these algorithms are described.

  9. Image Content Engine (ICE)

    SciTech Connect

    Brase, J M

    2007-03-26

    The Image Content Engine (ICE) is being developed to provide cueing assistance to human image analysts faced with increasingly large and intractable amounts of image data. The ICE architecture includes user configurable feature extraction pipelines which produce intermediate feature vector and match surface files which can then be accessed by interactive relational queries. Application of the feature extraction algorithms to large collections of images may be extremely time consuming and is launched as a batch job on a Linux cluster. The query interface accesses only the intermediate files and returns candidate hits nearly instantaneously. Queries may be posed for individual objects or collections. The query interface prompts the user for feedback, and applies relevance feedback algorithms to revise the feature vector weighting and focus on relevant search results. Examples of feature extraction and both model-based and search-by-example queries are presented.

  10. The Role of Omega-3 Dietary Supplementation in Blepharitis and Meibomian Gland Dysfunction (An AOS Thesis)

    PubMed Central

    Macsai, Marian S.

    2008-01-01

    Purpose Blepharitis and meibomian gland dysfunction (MGD) are common sources of complaints from patients. To evaluate the effect on ocular symptoms, ocular findings, and serum and meibomian gland contents, patients with blepharitis and MGD were prospectively evaluated to determine the effects of dietary supplementation with omega-3 fatty acids. Methods In a prospective randomized placebo-controlled masked trial, patients with simple obstructive MGD and blepharitis, who had discontinued all topical medications and tetracyclines, received oral omega-3 dietary supplementation consisting of two 1000-mg capsules 3 times a day. Patients were examined every 3 months for 1 year with the Ocular Surface Disease Index (OSDI) objective clinical measures, including tear production and stability, ocular surface and meibomian gland health, and biochemical plasma, red blood cell (RBC), and meibum evaluation. Primary outcome measures were change in tear breakup time (TBUT), meibum score, and overall OSDI score at 1 year. Results At 1 year, the omega-3 group had a 36% and 31% reduction in their omega-6 to omega-3 fatty acid ratios in RBCs and plasma, respectively (P = .3), whereas the placebo group demonstrated no change. At 12 months, the omega-3 group had an improvement in TBUT, OSDI score, and meibum score. Changes in meibum content were observed in the omega-3 group (P = .21); the level of meibum saturated fatty acids decreased. Conclusions This trial demonstrated a decrease in the RBC and plasma ratios of omega-6 to omega-3 in patients taking omega-3 dietary supplementation, as compared to controls, and improvements in their overall OSDI score, TBUT, and meibum score. This is the first demonstration of an induced change in the fatty acid saturation content in meibum as a result of dietary supplementation with omega-3 fatty acids. PMID:19277245

  11. Method for optimizing resource allocation in a government organization. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Afarin, James

    1994-01-01

    The managers in Federal agencies are challenged to control the extensive activities in government and still provide high-quality products and services to the American taxpayers. Considering today's complex social and economic environment and the $3.8 billion daily cost of operating the Federal Government, it is evident that there is a need to develop decision-making tools for accurate resource allocation and total quality management. The goal of this thesis is to provide a methodical process that will aid managers in Federal Government to make budgetary decisions based on the cost of services, the agency's objectives, and the customers' perception of the agency's product. A general resource allocation procedure was developed in this study that can be applied to any government organization. A government organization, hereafter the 'organization,' is assumed to be a multidivision enterprise. This procedure was applied to a small organization for the proof of the concept. This organization is the Technical Services Directorate (TSD) at the NASA Lewis Research Center in Cleveland, Ohio. As part of the procedure, a nonlinear programming model was developed to account for the resources of the organization, the outputs produced by the organization, the decision-maker's views, and the customers' satisfaction with the organization. The information on the resources of the organization was acquired from current budget levels of the organization and the human resources assigned to the divisions. The outputs of the organization were defined and measured by identifying metrics that assess the outputs, the most challenging task in this study. The decision-maker's views are represented in the model as weights assigned to the various outputs and were quantified by using the analytic hierarchy process. The customer's opinions regarding the outputs of the organization were collected through questionnaires that were designed for each division individually. Following the philosophy of total quality management, information on customers' satisfaction is presented in the model as the quality of output. The model is a nonlinear one whose objective is to maximize customers' satisfaction such that the total cost of operation does not exceed the organization's budget. This model represents a structured approach or policy mechanism, at the agency level, to make capital investment decisions based on the priorities of the agency and the quality of outputs. This procedure applied to TSD resulted in a resources allocation scheme that was reasonable and acceptable to the decision-makers and, as expected, dependent on the assumptions and accuracy of the data used in the model.

  12. Solubilization and spore recovery from silicone polymers. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Hsiao, Y. C.

    1974-01-01

    A non-sporicidal technique for solvent degradation of cured silicone polymers was developed which involves chemical degradation of cured silicone polymers by amine solvents at room temperature. Substantial improvements were obtained in the recovery of seeded spores from room temperature cured polymers as compared to the standard recovery procedures, which indicates that the curing process is not sufficiently exothermic to reduce spore viability. The dissolution reaction of cured silicone polymers whith amine solvents is proposed to occur by bimolecular nucleophilic displacement. The chemical structure of silicone polymers was determined by spectroscopic methods. The phenyl to methyl ratio, R/Si ratio, molecular weight, and hydroxyl content of the silicone resins were determined.

  13. Content Independence in Multimedia Databases.

    ERIC Educational Resources Information Center

    de Vries, Arjen P.

    2001-01-01

    Investigates the role of data management in multimedia digital libraries, and its implications for the design of database management systems. Introduces the notions of content abstraction and content independence. Proposes a blueprint of a new class of database technology, which supports the basic functionality for the management of both content

  14. Overlay coating degradation by simultaneous oxidation and coating/substrate interdiffusion. Ph.D. Thesis

    NASA Technical Reports Server (NTRS)

    Nesbitt, J. A.

    1983-01-01

    Degradation of NiCrAlZr overlay coatings on various NiCrAl substrates was examined after cyclic oxidation. Concentration/distance profiles were measured in the coating and substrate after various oxidation exposures at 1150 C. For each stubstrate, the Al content in the coating decreased rapidly. The concentration/distance profiles, and particularly that for Al, reflected the oxide spalling resistance of each coated substrate. A numerical model was developed to simulate diffusion associated with overlay-coating degradation by oxidation and coating/substrate interdiffusion. Input to the numerical model consisted of the Cr and Al content of the coating and substrate, ternary diffusivities, and various oxide spalling parameters. The model predicts the Cr and Al concentrations in the coating and substrate after any number of oxidation/thermal cycles. The numerical model also predicts coating failure based on the ability of the coating to supply sufficient Al to the oxide scale. The validity of the model was confirmed by comparison of the predicted and measured concentration/distance profiles. The model was subsequently used to identify the most critical system parameters affecting coating life.

  15. Structure-activity predictions of properties of organophosphorus pesticides and chemical agents important for optical detection. Master`s thesis

    SciTech Connect

    Porte, R.E.

    1995-12-01

    This thesis presents the results of an investigation for estimating various physicochemical properties of chemical warfare agents and organophosphorus pesticides. The determination of aqueous solubility, - octanol/water partition coefficients, and alkaline hydrolysis rate constants will be used in the development of a chemical sensor using fiber optic spectroscopy. These three parameters will effect the limit of detection for each compound by limiting the concentration in the detector. The parameters were estimated by linear free energy relationships and quantitative structure activity relationships using experimental data for compounds of similar chemical structure. The results of this thesis showed that the hydrophobic medium represented by 1-octanol did concentrate the OP pesticides but did not significantly concentrate CWA, CWA simulants, or CWA hydrolysis products. Correlations were evaluated for six classes of organophosphorus compounds. The limitation of this approach to predicting physicochemical parameters is not in the molecular descriptors used in the regression equations but in the availability of existing experimental data.

  16. Development of ground support equipment for the NPS ionospheric spectroscopy and atmospheric chemistry (ISAAC) ultraviolet spectrograph. Master`s thesis

    SciTech Connect

    Fragiskos, L.

    1995-06-01

    This thesis details the design of Ground Support Equipment (GSE) for the Naval Postgraduate School`s Ionospheric Spectroscopy and Atmospheric Chemistry (ISAAC) Ultraviolet Spectrograph. ISAAC is one of the several experiments to be flown on the Advanced Research and Global Observation Satellite (ARGOS) in 1996. The GSE consists of several software programs written in LabVIEW. These programs simulate the timing signals that ISAAC will receive from the satellite bus. In addition, the programs acquire serial data from ISAAC, perform a serial to parallel conversion and display the resulting spectra. The GSE will allow testing of the spectrograph prior to the interface with the satellite bus. Although the complete flight instrument is not yet available for testing, this thesis describes how the GSE-to-ISAAC interface will be made and how it should be operated. Finally, some hardware/software incompatibilities are identified.

  17. [The effect of public defense of a doctoral thesis on the heart rate of the doctoral candidate].

    PubMed

    Kiljander, Toni; Toikka, Jyri; Koskenvuo, Juha; Jaakkola, Ilkka

    2011-01-01

    The effect of public defense of a doctoral thesis on the heart rate of the doctoral candidate Most doctoral candidates find the public defense of a doctoral thesis an exciting and stressful experience. In this study, Holter recording during the defense was made for four doctoral candidates of the Faculty of Medicine. Maximum heart rate among the subjects was on the average 172 beats/min with a median heart rate of 116 beats/min. Sympathicotonia and release of stress hormones associated with the defense raise the heart rate to levels that may be very high for several hours. This is a risk factor for a coronary event and should be considered, if the doctoral candidate has coronary heart disease, carries risk factors for coronary heart disease, or is an elderly person. PMID:21805898

  18. Managing risk and marginalizing identities: on the society-of-captives thesis and the harm of social dis-ease.

    PubMed

    Arrigo, Bruce A

    2013-06-01

    This article develops the constitutive features of the society-of-captives thesis as suggested by Arrigo and Milovanovic, and Arrigo, Bersot, and Sellers. The relevance of this thesis is briefly explored in relation to the institutional and community-based treatment philosophies that currently inform the mental health and criminal justice systems. This exploration specifies how risk (being human and doing humanness differently) is managed symbolically, linguistically, materially, and culturally. The management of this risk extends to the kept as well as to their keepers, regulators, and watchers (i.e., the society of captives). This article calls for a new clinical praxis (being/doing a critical mindfulness) designed to overcome the totalizing madness (the harm of social dis-ease) that follows from managing risk fearfully and marginalizing identities desperately as reified recursively through society's captivity. The ethical underpinnings of this clinical praxis represent an emergent direction for undertaking correctional policy reform. PMID:23539520

  19. Thesis Abstract Bean (Phaseolus vulgaris L.) lines: chemical composition and protein digestibility.

    PubMed

    Mesquita, F R; Silva, M I A; Corrêa, A D

    2016-01-01

    The bean represents the main source of proteins for the low income populations, although the digestibility of those proteins is relatively low. Consequently, the programs of plant genetic breeding have been working on the search for new lines with higher protein levels. Thus, with the purpose of supplying information to the researchers, in this study, 21 bean (Phaseolus vulgaris L.) lines were analyzed for the centesimal and mineral composition, protein digestibility, phenolic compounds, and trypsin inhibitor. The entirely randomized experimental design was used with 21 treatments (lines) and three repetitions. All values were within the following ranges: 22.34 to 36.28 g crude protein/100 g dry matter (DM); 7.56 to 20.91 g neutral detergent fiber/100 g DM; 0.53 to 2.55 g fat/100 g DM and 2.97 to 4.87 g ashes/100 g DM. The levels of phosphorus, potassium, calcium, magnesium, and sulfur, in g/100 g DM, varied from 0.45 to 0.72; 1.51 to 2.48; 0.03 to 0.28; 0.18 to 0.34 and 0.28 to 0.45, respectively. Regarding copper, manganese, zinc and iron, the levels, in mg/kg DM, varied from 11.37 to 17.73; 14.93 to 28.90; 36.67 to 69.90 and 71.37 to 126.90, respectively. The in vitro protein digestibility varied from 18.03 to 48.32%. The levels of phenolic compounds varied from 0.28 to 1.08 mg acid tanic/100 g DM and the one of trypsin inhibitor from 59.93 to 151.07 trypsin inhibited units/mg DM. Among the lines with higher protein contents, "ESAL 569" (beige with brown stripe) presented the largest protein digestibility and considerable levels of minerals. "P-180" (beige with brown stripe) was one of the lines with higher crude protein contents and digestibilities, and also presented high levels for most of the minerals. No relation between protein digestibility and the contents of phenolic compounds or trypsin inhibitor was observed. PMID:27173357

  20. Plant chlorophyll content meter

    NASA Technical Reports Server (NTRS)

    Spiering, Bruce A. (Inventor); Carter, Gregory A. (Inventor)

    2000-01-01

    A plant chlorophyll content meter is described which collects light reflected from a target plant and separates the collected light into two different wavelength bands. These wavelength bands, or channels, are described as having center wavelengths of 700 nm and 840 nm. The light collected in these two channels are processed using photo detectors and amplifiers. An analog to digital converter is described which provides a digital representation of the level of light collected by the lens and falling within the two channels. A controller provided in the meter device compares the level of light reflected from a target plant with a level of light detected from a light source, such as light reflected by a target having 100% reflectance, or transmitted through a diffusion receptor. The percent of reflection in the two separate wavelength bands from a target plant are compared to provide a ratio which indicates a relative level of plant physiological stress. A method of compensating for electronic drift is described where a sample is taken when a collection lens is covered to prevent light from entering the device. This compensation method allows for a more accurate reading by reducing error contributions due to electronic drift from environmental conditions at the location where a hand-held unit is used.

  1. Multiprocessor memory contention

    SciTech Connect

    Knadler, C.E. Jr.

    1989-01-01

    Caches are frequently incorporated in processor architectures to increase the effective memory speed and to reduce memory contention. However, task switches and the coherency problems of large n-way, mainframe-class multiprocessors lessen the effectiveness of cache architectures for general-purpose applications. A proposed alternative approach is to increase the effective memory bandwidth and decrease memory-access delays through instruction prefetch, operand buffering, highly interleave memory, and multiple-word width processor-memory data paths. This approach was evaluated by comparing cache and noncache system performance, using discrete-event simulation. Since the performance of a multiprocessor architecture is a function of its operating environment was well as its design, the system workload was defined. General-purpose applications, running under multitasking operating systems, were characterized with respect to addressing patterns, paging rates, and frequency of input/output operations. The proposed noncache architecture was found to have performance comparable to that of the cache architectures and obviated then need to solve the cache coherency problem.

  2. Content of general practice.

    PubMed

    Lim, T O

    1991-06-01

    Eight general practitioners participated in a survey of content of general practice. This is useful as an indicator or morbidity in the community as well as of workload of general practice. A total of 3164 consultations were recorded, of which 2764 (87%) were because of an illness and the rest (13%) for other reasons like medical examinations, antenatal check, family planning advice, pregnancy tests, pap smear and vaccination. The old and the young have high consultation rates for an illness, men consulted as often as women. The most common illness seen was upper respiratory tract infections, accounting for 37% of all illnesses. Other common minor illnesses were skin infections (6%), genito-urinary infections (5%), minor musculoskeletal (6%) and gastrointestinal (6%) complaints as well as minor injuries and cuts (4%). Major disorders form an unusually low proportion (18%) of all illnesses seen, in comparison with figures from United Kingdom. The common major disorders seen were hypertension, asthma, chronic rheumatic disorders and diabetes. Circulatory disorders were remarkably rare, accounting for only 1% of illnesses. Psychological disorders, both major and minor, were also rarely seen, accounting for only 1% of illnesses which is in marked contrast with figures from the United Kingdom. Factors contributing to these notable findings are discussed. PMID:1839420

  3. Semi-microdroplet assay for cell adhesion molecules. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Tawa, Lawrence Shinzo

    1988-01-01

    A new cell-to-cell adhesion assay was devised. Using dissociated embryos of the sea urchin, this procedure involves rotating a 0.100 ml suspension of single cells with 0.100 ml of the solution to be tested in the bulb portion of a transfer pipet with the tip removed. After 1 hour of rotation at 60 rpm at 15 C, the contents of each bulb were transferred into individual wells of a 96 well flat bottom plate. After the plate was incubated for 1 hour at 15 C, black and white photographs were taken with a 35 mm camera attached to an inverted photomicroscope. Examining a proof sheet of the negatives directly allowed a rapid evaluation of suspected cell adhesion promoting factors. A ranking system was used to evaluate all samples. The assay was tested by examining the effect of specific solutions on the aggregation of single cells obtained from dissociated 23 hour embryos.

  4. On the joint spectral density of bivariate random sequences. Thesis Technical Report No. 21

    NASA Technical Reports Server (NTRS)

    Aalfs, David D.

    1995-01-01

    For univariate random sequences, the power spectral density acts like a probability density function of the frequencies present in the sequence. This dissertation extends that concept to bivariate random sequences. For this purpose, a function called the joint spectral density is defined that represents a joint probability weighing of the frequency content of pairs of random sequences. Given a pair of random sequences, the joint spectral density is not uniquely determined in the absence of any constraints. Two approaches to constraining the sequences are suggested: (1) assume the sequences are the margins of some stationary random field, (2) assume the sequences conform to a particular model that is linked to the joint spectral density. For both approaches, the properties of the resulting sequences are investigated in some detail, and simulation is used to corroborate theoretical results. It is concluded that under either of these two constraints, the joint spectral density can be computed from the non-stationary cross-correlation.

  5. KARL: A Knowledge-Assisted Retrieval Language. M.S. Thesis Final Report, 1 Jul. 1985 - 31 Dec. 1987

    NASA Technical Reports Server (NTRS)

    Dominick, Wayne D. (Editor); Triantafyllopoulos, Spiros

    1985-01-01

    Data classification and storage are tasks typically performed by application specialists. In contrast, information users are primarily non-computer specialists who use information in their decision-making and other activities. Interaction efficiency between such users and the computer is often reduced by machine requirements and resulting user reluctance to use the system. This thesis examines the problems associated with information retrieval for non-computer specialist users, and proposes a method for communicating in restricted English that uses knowledge of the entities involved, relationships between entities, and basic English language syntax and semantics to translate the user requests into formal queries. The proposed method includes an intelligent dictionary, syntax and semantic verifiers, and a formal query generator. In addition, the proposed system has a learning capability that can improve portability and performance. With the increasing demand for efficient human-machine communication, the significance of this thesis becomes apparent. As human resources become more valuable, software systems that will assist in improving the human-machine interface will be needed and research addressing new solutions will be of utmost importance. This thesis presents an initial design and implementation as a foundation for further research and development into the emerging field of natural language database query systems.

  6. Evolution and Development of Dual Ingestion Systems in Mammals: Notes on a New Thesis and Its Clinical Implications

    PubMed Central

    Alberts, Jeffrey R.; Pickler, Rita H.

    2012-01-01

    Traditionally, the development of oral feeding is viewed as a continuous, unitary process in which reflex-dominated sucking behavior gives rise to a more varied and volitional feeding behavior. In contrast, we consider the thesis that the infant develops two separable ingestive systems, one for suckling and one for feeding. First, we apply an evolutionary perspective, recognizing that suckling-feeding is a universal, mammalian developmental sequence. We find that in mammalian evolution, feeding systems in offspring were established prior to the evolution of lactation, and therefore suckling is a separable feature that was added to feeding. We next review an experimental literature that characterizes suckling and feeding as separable in terms of their topography, sensory controls, physiological controls, neural substrates, and experience-based development. Together, these considerations constitute a view of “dual ingestive systems.” The thesis, then, is that suckling is not a simple precursor of feeding but is a complete behavior that emerges, forms, and then undergoes a dissolution that overlaps with the emergence of independent feeding. This thesis guides us to focus differently on the challenges of properly managing and facilitating oral ingestion in infants, especially those born preterm, prior to the developmental onset of suckling. PMID:23028391

  7. Analysis of the morality of intention in nuclear deterrence, with special reference to final retaliation. Doctoral thesis

    SciTech Connect

    Zink, J.A.

    1990-01-01

    Quite apart from its apparent political obsolescence, the policy of nuclear deterrence is vulnerable to attack for its seemingly obvious immorality. Nuclear war is blatantly immoral, and nuclear deterrence requires a genuine intention to resort to the nuclear retaliation which would precipitate such a war. Therefore, since it is wrong to intend that which is wrong to do, deterrence is immoral. This thesis seeks to examine the nature of the deterrent intention as a means of verifying the soundness of the above deontological argument. This examination is carried out by first suggesting an acceptable notion of intention in general and then, after analysing the views of deterrent intention by other writers, proceeding to demonstrate the uniqueness of that intention. Having done this, and having explored the possibility that deterrence need not contain a genuine intention to retaliate, the thesis moves on to suggest and defend a moral principle which states that endeavours requiring the formation of an immoral intention may nevertheless be moral. Called the Principle of Double Intention (and based on the Principle of Double Effect), it offers a method for the moral assessment of agents who form immoral intentions within larger contexts. By applying this principle to nuclear deterrence, it is demonstrated that agents who undertake such a policy may be morally justified in doing so, provided certain conditions are met. The thesis closes with a refutation of the objection that an agent cannot rationally form an intention (such as that required in deterrence) which he has no reason to carry out.

  8. An Investigation of Non-Thesis Master's Program Geography Teacher Candidates' Attitudes towards Teaching Profession regarding Several Socio-Cultural Features

    ERIC Educational Resources Information Center

    Sezer, Adem; Kara, Hasan; Pinar, Adnan

    2011-01-01

    The purpose of this study is to examine the attitudes of non-thesis master's degree program: geography teacher candidates towards teaching profession regarding several socio-cultural features. The study was conducted in different universities with 218 geography teacher candidates enrolled in the geography education non-thesis master's degree…

  9. Prize of the best thesis 2015: Study of debris discs through state-of-the-art numerical modelling

    NASA Astrophysics Data System (ADS)

    Kral, Q.; Thébault, P.

    2015-12-01

    This proceeding summarises the thesis entitled ``Study of debris discs with a new generation numerical model'' by Quentin Kral, for which he obtained the prize of the best thesis in 2015. The thesis brought major contributions to the field of debris disc modelling. The main achievement is to have created, almost ex-nihilo, the first truly self-consistent numerical model able to simultaneously follow the coupled collisional and dynamical evolutions of debris discs. Such a code has been thought as being the ``Holy Grail'' of disc modellers for the past decade, and while several codes with partial dynamics/collisions coupling have been presented, the code developed in this thesis, called ``LIDT-DD'' is the first to achieve a full coupling. The LIDT-DD model, which is the first of a new-generation of fully self-consistent debris disc models is able to handle both planetesimals and dust and create new fragments after each collision. The main idea of LIDT-DD development was to merge into one code two approaches that were so far used separately in disc modelling, that is, an N-body algorithm to investigate the dynamics, and a statistical scheme to explore the collisional evolution. This complex scheme is not straightforward to develop as there are major difficulties to overcome: 1) collisions in debris discs are highly destructive and produce clouds of small fragments after each single impact, 2) the smallest (and most numerous) of these fragments have a strongly size-dependent dynamics because of the radiation pressure, and 3) the dust usually observed in discs is precisely these smallest grains. These extreme constraints had so far prevented all previous attempts at developing self-consistent disc models to succeed. The thesis contains many examples of the use of LIDT-DD that are not yet published but the case of the collision between two asteroid-like bodies is studied in detail. In particular, LIDT-DD is able to predict the different stages that should be observed after such massive collisions that happen mainly in the latest stages of planetary formation. Some giant impact signatures and observability predictions for VLT/SPHERE and JWST/MIRI are given. JWST should be able to detect many of such impacts and would enable to see on-going planetary formation in dozens of planetary systems.

  10. An Intelligent Content Discovery Technique for Health Portal Content Management

    PubMed Central

    2014-01-01

    Background Continuous content management of health information portals is a feature vital for its sustainability and widespread acceptance. Knowledge and experience of a domain expert is essential for content management in the health domain. The rate of generation of online health resources is exponential and thereby manual examination for relevance to a specific topic and audience is a formidable challenge for domain experts. Intelligent content discovery for effective content management is a less researched topic. An existing expert-endorsed content repository can provide the necessary leverage to automatically identify relevant resources and evaluate qualitative metrics. Objective This paper reports on the design research towards an intelligent technique for automated content discovery and ranking for health information portals. The proposed technique aims to improve efficiency of the current mostly manual process of portal content management by utilising an existing expert-endorsed content repository as a supporting base and a benchmark to evaluate the suitability of new content Methods A model for content management was established based on a field study of potential users. The proposed technique is integral to this content management model and executes in several phases (ie, query construction, content search, text analytics and fuzzy multi-criteria ranking). The construction of multi-dimensional search queries with input from Wordnet, the use of multi-word and single-word terms as representative semantics for text analytics and the use of fuzzy multi-criteria ranking for subjective evaluation of quality metrics are original contributions reported in this paper. Results The feasibility of the proposed technique was examined with experiments conducted on an actual health information portal, the BCKOnline portal. Both intermediary and final results generated by the technique are presented in the paper and these help to establish benefits of the technique and its contribution towards effective content management. Conclusions The prevalence of large numbers of online health resources is a key obstacle for domain experts involved in content management of health information portals and websites. The proposed technique has proven successful at search and identification of resources and the measurement of their relevance. It can be used to support the domain expert in content management and thereby ensure the health portal is up-to-date and current. PMID:25654440

  11. Magnetic content addressable memories

    NASA Astrophysics Data System (ADS)

    Jiang, Zhenye

    Content Addressable Memories are designed with comparison circuits built into every bit cell. This parallel structure can increase the speed of searching from O(n) (as with Random Access Memories) to O(1), where n is the number of entries being searched. The high cost in hardware limits the application of CAM within situations where higher searching speed is extremely desired. Spintronics technology can build non-volatile Magnetic RAM with only one device for one bit cell. There are various technologies involved, like Magnetic Tunnel Junctions, off-easy-axis programming method, Synthetic Anti-Ferromagnetic tri-layers, Domain Wall displacement, Spin Transfer Torque tri-layers and etc. With them, particularly the Tunnel Magneto-Resistance variation in MTJ due to difference in magnetization polarity of the two magnets, Magnetic CAM can be developed with reduced hardware cost. And this is demonstrated by the discussion in this dissertation. Six MCAM designs are discussed. In the first design, comparand (C), local information (S) and their complements are stored into 4 MTJs connected in XOR gate pattern. The other five designs have one or two stacks for both information storage and comparison, and full TMR ratio can be taken advantage of. Two challenges for the five are specifically programming C without changing S and selectively programming a cell out of an array. The solutions to specific programming are: by confining the programming field for C in a ring structure design; by using field programming and spin polarized current programming respectively for C and S in the SAF+DW and SAF+STT tri-layer design; by making use of the difference in thresholds between direct mode and toggle mode switching in the SAF+SAF design. The problem of selective programming is addressed by off-easy-axis method and by including SAF tri-layers. Cell with STT tri-layers for both C and S can completely avoid the problems of specific and selective programming, but subject to the limit of multiple current paths. Test chip was designed for the 4-MTJ design. Simulations were done on feasibility and operation windows of ring structure, SAF+DW, SAF+STT and SAF+SAF cell designs. For STT+STT design, only primitive discussion is presented.

  12. Progressive transmission of pseudo-color images. Appendix 1: Item 4. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Hadenfeldt, Andrew C.

    1991-01-01

    The transmission of digital images can require considerable channel bandwidth. The cost of obtaining such a channel can be prohibitive, or the channel might simply not be available. In this case, progressive transmission (PT) can be useful. PT presents the user with a coarse initial image approximation, and then proceeds to refine it. In this way, the user tends to receive information about the content of the image sooner than if a sequential transmission method is used. PT finds application in image data base browsing, teleconferencing, medical and other applications. A PT scheme is developed for use with a particular type of image data, the pseudo-color or color mapped image. Such images consist of a table of colors called a colormap, plus a 2-D array of index values which indicate which colormap entry is to be used to display a given pixel. This type of image presents some unique problems for a PT coder, and techniques for overcoming these problems are developed. A computer simulation of the color mapped PT scheme is developed to evaluate its performance. Results of simulation using several test images are presented.

  13. Pulmonary Edema and Plasma Volume Changes in Dysbarism. M.S. Thesis - Texas Univ.

    NASA Technical Reports Server (NTRS)

    Joki, J. A.

    1972-01-01

    Two groups of anesthetized, fasted pigs were utilized. One group of 13 animals (8.5 to 16.6 kilograms) was exposed to a high-pressure environment, and the other group of eight animals (6.9 to 20.0 kilograms) constituted the control group. The experimental group was subjected to an atmosphere of 90 percent nitrogen and 10 percent oxygen at a pressure of 50 psig for 30 minutes and then decompressed at a rate 10 psi/min. Plasma volumes, using both iodine-125-tagged-albumin and chromium-51-tagged-cell dilution techniques, were measured before, immediately after, and at 30 and 60 minutes after decompression. Aortic and right-ventricular systolic pressures were also recorded. At 60 minutes after decompression, blood samples were taken, the animals were sacrificed, and the water content of the lungs, kidneys, livers, and spleens was estimated by measuring tissue wet weight and dry weight. Protein extravasation and tissue blood volumes were determined by measuring the iodine-125-tagged-albumin and chromium-51-tagged-cell spaces in homo-genates of the organs under investigation.

  14. Plant Adaptation to Cold. 1: Chlorophyll. 2: Minerals. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Rosen, P.

    1972-01-01

    A number of montane herbs in northern Utah typically form flower buds beneath the snow cover and flower either through it or immediately after its recession. Two of these species, one naturally occurring, Claytonia lanceolata, and one cultivated bulb, Galanthus nivalis, were investigated for their response to this stress environment. Snow depth patterns, chlorophyll content of tissues, and plants grown in light-tight boxes, suggest that light passing through the snow to reach plants growing underneath is not critically involved in the timing of their developmental cycles or in their ability to endure this low temperature environment. Ability to endure stress seems to be closely related in a number of ways to activity at the plant membranes. Plants were protected from low temperature damage by application of cytokinin or calcium, both of which probably acted at the membrane. Potassium calcium antagonisms were reflected in the internal distribution of the ions under natural stress conditions; and plants that differentiated at the meristem while growing through the snow accumulated calcium at the tip during this growth.

  15. Ductility and fracture in B2 FeAl alloys. Ph.D. Thesis Final Report

    NASA Technical Reports Server (NTRS)

    Crimp, Martin A.

    1987-01-01

    The mechanical behavior of B2FeAl alloys was studied. Stoichiometric Fe-50Al exhibits totally brittle behavior while iron-rich Fe-40Al yields and displays about 3% total strain. This change in behavior results from large decreases in the yield strength with iron-rich deviations from stoichiometry while the fracture stress remains essentially constant. Single crystal studies show that these yield strength decreases are directly related to decreases in the critical resolved shear stress for a group of zone axes /111/ set of (110) planes slip. This behavior is rationalized in terms of the decrease in antiphase boundary energy with decreasing aluminum content. The addition of boron results in improvements in the mechanical behavior of alloys on the iron-rich side of stoichiometry. These improvements are increased brittle fracture stresses of near-stoichiometric alloys, and enhanced ductility of up to 6% in Fe-40Al. These effects were attributed to increased grain boundary adhesion as reflected by changes in fracture mode from intergranular to transgranular failure. The increases in yield strength, which are observed in both polycrystals and single crystals, result from the quenching in of large numbers of thermal vacancies. Hall-Petch plots show that the cooling rate effects are a direct result of changes in the Hall-Petch intercept/lattice resistance flow.

  16. A real-time diagnostic and performance monitor for UNIX. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Dong, Hongchao

    1992-01-01

    There are now over one million UNIX sites and the pace at which new installations are added is steadily increasing. Along with this increase, comes a need to develop simple efficient, effective and adaptable ways of simultaneously collecting real-time diagnostic and performance data. This need exists because distributed systems can give rise to complex failure situations that are often un-identifiable with single-machine diagnostic software. The simultaneous collection of error and performance data is also important for research in failure prediction and error/performance studies. This paper introduces a portable method to concurrently collect real-time diagnostic and performance data on a distributed UNIX system. The combined diagnostic/performance data collection is implemented on a distributed multi-computer system using SUN4's as servers. The approach uses existing UNIX system facilities to gather system dependability information such as error and crash reports. In addition, performance data such as CPU utilization, disk usage, I/O transfer rate and network contention is also collected. In the future, the collected data will be used to identify dependability bottlenecks and to analyze the impact of failures on system performance.

  17. Set theory and physics

    SciTech Connect

    Svozil, K.

    1995-11-01

    Inasmuch as physical theories are formalizable, set theory provides a framework for theoretical physics. Four speculations about the relevance of set theoretical modeling for physics are presented: the role of transcendental set theory (i) in chaos theory, (ii) for paradoxical decompositions of solid three-dimensional objects, (iii) in the theory of effective computability (Church-Turing thesis) related to the possible {open_quotes}solution of supertasks,{close_quotes} and (iv) for weak solutions. Several approaches to set theory and their advantages and disadvantages for physical applications are discussed: Cantorian {open_quotes}naive{close_quotes} (i.e., nonaxiomatic) set theory, contructivism, and operationalism. In the author`s opinion, an attitude, of {open_quotes}suspended attention{close_quotes} (a term borrowed from psychoanalysis) seems most promising for progress. Physical and set theoretical entities must be operationalized wherever possible. At the same time, physicists should be open to {open_quotes}bizarre{close_quotes} or {open_quotes}mindboggling{close_quotes} new formalisms, which need not be operationalizable or testable at the time of their creation, but which may successfully lead to novel fields of phenomenology and technology.

  18. Set theory and physics

    NASA Astrophysics Data System (ADS)

    Svozil, K.

    1995-11-01

    Inasmuch as physical theories are formalizable, set theory provides a framework for theoretical physics. Four speculations about the relevance of set theoretical modeling for physics are presented: the role of transcendental set theory (i) in chaos theory, (ii) for paradoxical decompositions of solid three-dimensional objects, (iii) in the theory of effective computability (Church-Turing thesis) related to the possible “solution of supertasks,” and (iv) for weak solutions. Several approaches to set theory and their advantages and disadvatages for physical applications are discussed: Canlorian “naive” (i.e., nonaxiomatic) set theory, contructivism, and operationalism. In the author's opinion, an attitude of “suspended attention” (a term borrowed from psychoanalysis) seems most promising for progress. Physical and set theoretical entities must be operationalized wherever possible. At the same time, physicists should be open to “bizarre” or “mindboggling” new formalisms, which need not be operationalizable or testable at the lime of their creation, but which may successfully lead to novel fields of phenomenology and technology.

  19. The Power of Quantum Systems on a Line

    NASA Astrophysics Data System (ADS)

    Aharonov, Dorit; Gottesman, Daniel; Irani, Sandy; Kempe, Julia

    2009-04-01

    We study the computational strength of quantum particles (each of finite dimensionality) arranged on a line. First, we prove that it is possible to perform universal adiabatic quantum computation using a one-dimensional quantum system (with 9 states per particle). This might have practical implications for experimentalists interested in constructing an adiabatic quantum computer. Building on the same construction, but with some additional technical effort and 12 states per particle, we show that the problem of approximating the ground state energy of a system composed of a line of quantum particles is QMA-complete; QMA is a quantum analogue of NP. This is in striking contrast to the fact that the analogous classical problem, namely, one-dimensional MAX-2-SAT with nearest neighbor constraints, is in P. The proof of the QMA-completeness result requires an additional idea beyond the usual techniques in the area: Not all illegal configurations can be ruled out by local checks, so instead we rule out such illegal configurations because they would, in the future, evolve into a state which can be seen locally to be illegal. Our construction implies (assuming the quantum Church-Turing thesis and that quantum computers cannot efficiently solve QMA-complete problems) that there are one-dimensional systems which take an exponential time to relax to their ground states at any temperature, making them candidates for being one-dimensional spin glasses.

  20. Statistical benchmark for BosonSampling

    NASA Astrophysics Data System (ADS)

    Walschaers, Mattia; Kuipers, Jack; Urbina, Juan-Diego; Mayer, Klaus; Tichy, Malte Christopher; Richter, Klaus; Buchleitner, Andreas

    2016-03-01

    Boson samplers—set-ups that generate complex many-particle output states through the transmission of elementary many-particle input states across a multitude of mutually coupled modes—promise the efficient quantum simulation of a classically intractable computational task, and challenge the extended Church-Turing thesis, one of the fundamental dogmas of computer science. However, as in all experimental quantum simulations of truly complex systems, one crucial problem remains: how to certify that a given experimental measurement record unambiguously results from enforcing the claimed dynamics, on bosons, fermions or distinguishable particles? Here we offer a statistical solution to the certification problem, identifying an unambiguous statistical signature of many-body quantum interference upon transmission across a multimode, random scattering device. We show that statistical analysis of only partial information on the output state allows to characterise the imparted dynamics through particle type-specific features of the emerging interference patterns. The relevant statistical quantifiers are classically computable, define a falsifiable benchmark for BosonSampling, and reveal distinctive features of many-particle quantum dynamics, which go much beyond mere bunching or anti-bunching effects.

  1. Probing the optical depth of spiral galaxies using multi-waveband observations. Thesis

    NASA Technical Reports Server (NTRS)

    Evans, Rhodri

    1993-01-01

    The questions of the optical depth and extinction of galaxies obviously have far-reaching implications; from determining the true stellar content and baryonic mass of galaxies to the origin of the major component of their far infrared radiation. We have investigated whether the reddening of stars can be used to determine the amount and extent of obscuring dust. We find that the amount of reddening is very sensitive to the assumed geometry. The usually assumed case of a screen of dust between the observer and the star produces, for a given optical depth, the maximum amount of reddening. However, for external galaxies such a geometry is clearly wrong. More realistic geometries where the dust and stars are uniformly mixed (a 'slab') or where the dust is sandwiched by unobscured stars (a 'sandwich') produce significantly less reddening. For the slab geometry of the reddening rises to a maximum value as the optical depth is increased, and for a sandwich geometry the reddening will actually decrease as the optical depth becomes larger. The reddening vectors produced by these realistic geometries are compared to multi-waveband observations of individual regions of a sample of eight galaxies. We find evidence for significant optical depths in the central regions of some of these galaxies, but optical depths of less than unity at approx. 2 scale lengths from the centers. The optical depths derived are in good agreement with other tests such as the measured hydrogen column densities and the far infrared to blue light ratios. However, whereas these two latter approaches are insensitive to the relative distributions of the stars and the dust, the amount of reddening seen in these eight galaxies suggests that the dust to stellar scale height ratio xi is greater than or equal to 0.5. We find typical blue band extinctions of A(sub B) = 0.75-1.0, a factor of 3-4 higher than the RC2 value.

  2. Teaching Content through the Arts

    ERIC Educational Resources Information Center

    Feller, Thomas R., Jr.; Gibbs-Griffith, Brian; D'Acquisto, Linda; Khourey-Bowers, Claudia; Croley, Cynthia B.

    2007-01-01

    Policymakers sometimes view arts education and experiential learning as distractions from the goal of enabling all students to master rigorous content standards. The three school programs described in this article, however, demonstrate that content standards can be integrated into engaging, motivating curriculums based on the arts and authentic…

  3. Educators Assess "Open Content" Movement

    ERIC Educational Resources Information Center

    Trotter, Andrew

    2009-01-01

    This article discusses the open-content movement in education. A small but growing movement of K-12 educators is latching on to educational resources that are "open," or free for others to use, change, and republish on web sites that promote sharing. The open-content movement is fueled partly by digital creation tools that make it easy to create

  4. Teaching Content through the Arts

    ERIC Educational Resources Information Center

    Feller, Thomas R., Jr.; Gibbs-Griffith, Brian; D'Acquisto, Linda; Khourey-Bowers, Claudia; Croley, Cynthia B.

    2007-01-01

    Policymakers sometimes view arts education and experiential learning as distractions from the goal of enabling all students to master rigorous content standards. The three school programs described in this article, however, demonstrate that content standards can be integrated into engaging, motivating curriculums based on the arts and authentic

  5. 78 FR 13876 - Content Policy

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-01

    ... UNITED STATES Content Policy This notice is to inform the public that the Export-Import Bank of the United States is in the process of reviewing its content policy. A list of the questions and issues that the Bank is addressing can be accessed here:...

  6. Educators Assess "Open Content" Movement

    ERIC Educational Resources Information Center

    Trotter, Andrew

    2009-01-01

    This article discusses the open-content movement in education. A small but growing movement of K-12 educators is latching on to educational resources that are "open," or free for others to use, change, and republish on web sites that promote sharing. The open-content movement is fueled partly by digital creation tools that make it easy to create…

  7. The Technology/Content Dilemma.

    ERIC Educational Resources Information Center

    Goldman, Shelley; Cole, Karen; Syer, Christina

    Even in schools where there is a strong push to adopt and use technologies, the road to content fulfillment is a long one. The technology learning curve tends to eclipse content learning temporarily--both students and teachers seem to orient to technology until they become comfortable. This dilemma has important implications for teachers'…

  8. Content Independence in Multimedia Databases.

    ERIC Educational Resources Information Center

    de Vries, Arjen P.

    2001-01-01

    Investigates the role of data management in multimedia digital libraries, and its implications for the design of database management systems. Introduces the notions of content abstraction and content independence. Proposes a blueprint of a new class of database technology, which supports the basic functionality for the management of both content…

  9. Multivariable control of the Space Shuttle Remote Manipulator System using linearization by state feedback. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Gettman, Chang-Ching LO

    1993-01-01

    This thesis develops and demonstrates an approach to nonlinear control system design using linearization by state feedback. The design provides improved transient response behavior allowing faster maneuvering of payloads by the SRMS. Modeling uncertainty is accounted for by using a second feedback loop designed around the feedback linearized dynamics. A classical feedback loop is developed to provide the easy implementation required for the relatively small on board computers. Feedback linearization also allows the use of higher bandwidth model based compensation in the outer loop, since it helps maintain stability in the presence of the nonlinearities typically neglected in model based designs.

  10. Approaches to Content Area Reading Instruction.

    ERIC Educational Resources Information Center

    Moore, David W.; Readence, John E.

    1983-01-01

    Discusses the advantages and disadvantages of four methods of teaching reading in the content areas: (1) presenting isolated skills, (2) "aiming" toward content, (3) "guiding" toward content, and (4) presenting skills and content concurrently. (FL)

  11. Thesis Abstract Levels and forms of vitamin D in broilers diets.

    PubMed

    Mesquita, F R; Silva, M I A; Bertechini, A G

    2016-01-01

    This study aimed to evaluate the concentration effects of two vitamin D isoforms, cholecalciferol (D3) and 25-hydroxycholecalciferol (25-OHD3) in broilers diets on performance, bone and physiological features of these birds. Of a total of 1920 one-day-old male chicks Cobb-500 were used from commercial hatchery, reared under bed creation systems. The animals were distributed in six treatments and eight replicates with 40 birds per treatment in a completely randomized design. The following vitamin D supplementation levels were applied: 70 and 87.5 μg/kg feed in initial phase; 56 and 70 μg/kg feed during the growth phase, and 35 and 47.35 μg/kg of feed in final phase of creation, obtained from two forms (D3 and 25-OHD3). The treatments consisted of supplementation of two levels from each isolated source and their associations (60% D3 + 40% 25-OHD3) according to the study phases. In the metabolism assay, 480 birds (14 and 35 days of age) were separated to be used for evaluation of calcium (Ca) and phosphorus (P) retention and excretion during the periods of 19 to 21 days and 40 to 42 days of age. The diets were based on corn and soybean meal, with supplementation of phytase (500 FTU/kg). The performance, bone characteristics, plasma levels, bone radiographic density, carcass yield, and P and Ca retention were evaluated. In the initial creation phase, we observed an increased P excretion by broilers fed diets supplemented with vitamin D3 (P < 0.05). In addition, the association between the two vitamin D isoforms resulted in higher retention of Ca and P than the birds fed diets supplemented only with vitamin D3 (P < 0.05), and higher P retention when compared to birds fed diets supplemented with 25-OHD3 (P < 0.05). Dietary supplemental 25-OHD3 at 87.5 μg/kg resulted in higher plasma levels of Ca in relation to the same supplemented source with 70 μg/kg at 21 days of age (P < 0.05). In the final phase, the birds fed diets supplemented with vitamin D3 presented the lowest values of consumption and retention of Ca and P (P < 0.05). The association between the forms (D3 and 25-OHD3) reduced the excretion values of Ca and P (p < 0.05). The birds receiving a source of 25-OHD3 and the association had better feed conversion ratio and higher bone ash content (P < 0.05). At all stages studied D3 + 25-OHD3 combined supplementation increased tibial density of broilers in relation to supplementation of only vitamin D3 (P < 0.05). Results of this study indicate that the addition of 25-OHD3 in the feed supplemented with vitamin D3 improve the feed conversion, increase the Ca plasma levels, and also increases bone density, providing higher retention coefficients of Ca and P and lower P excretion, regardless of the development phase of these birds. PMID:27173338

  12. Visual Analysis of Weblog Content

    SciTech Connect

    Gregory, Michelle L.; Payne, Deborah A.; McColgin, Dave; Cramer, Nick O.; Love, Douglas V.

    2007-03-26

    In recent years, one of the advances of the World Wide Web is social media and one of the fastest growing aspects of social media is the blogosphere. Blogs make content creation easy and are highly accessible through web pages and syndication. With their growing influence, a need has arisen to be able to monitor the opinions and insight revealed within their content. In this paper we describe a technical approach for analyzing the content of blog data using a visual analytic tool, IN-SPIRE, developed by Pacific Northwest National Laboratory. We highlight the capabilities of this tool that are particularly useful for information gathering from blog data.

  13. [Remarks on Leon Popielski's manuscript of his review of January Zubrzycki's qualifying thesis for professorship dating from 1915].

    PubMed

    Heimrath, T

    1994-01-01

    A review written by professor Leon Popielski from Lvov of the qualifying thesis for professorship of January Zubrzycki from Cracow is presented. The manuscript has been kept by professor Popielski's family. Zubrzycki finished his medical studies in Cracow in 1909. While writing his qualifying thesis entitled Placental Albumin Derivatives and their Toxic Properties in 1915 he was an assistant of Aleksander Rosner in the department of maternity and gynaecology of Jagiellonian University. In 1931 as a professor he became the head of the clinic and following the Second World War he was a professor at several faculties of medicine in Poland. He was an outstanding gynaecological surgeon, an author of a five volume atlas of gynaecological surgery. Professor Leon Popielski studied in S. Petersburg. He specialized in physiology. Since 1904 he was the head of the Chair of Pharmacologoy and Pharmacognosy at the Universitiy of Lvov. Popielski's intrest in Zubrzycki's work ensued his research on albumin metabolite effect. His appreciation of the work is expressed by the phrase "I read it with satisfaction". The review was written in 1919, belated by the war. PMID:11624930

  14. Guide to implementing reclamation processes at Department of Defense municipal solid waste and construction debris landfills. Master's thesis

    SciTech Connect

    Tures, G.L.

    1993-09-21

    This thesis serves as a guide for implementing landfill reclamation techniques on municipal solid waste or construction debris landfills owned, operated, or used by the DoD. The research describes historical and current methods for disposing of solid waste including open dumping, sanitary landfilling, and the development of state-of-the-art sanitary landfill cell technology. The thesis also identifies the factors which have led to the need for new methods of managing municipal solid waste. The vast majority of the study is devoted to identifying actions which should be taken before, during, and after implementation of a landfill reclamation project. These actions include the development of health, safety, and contingency planning documents, the establishment of systems for characterizing and monitoring site conditions, and the identification of other procedures and processes necessary for performing successful operations. Finally, this study contains a model for analyzing under which conditions reclamation is economically feasible. The model examines economic feasibility in four separate conditions and shows that reclamation is economically feasible in a wide variety of markets. However, the model also shows that feasibility is directly associated with a continuance of normal landfilling operations. Landfill, Landfill reclamation, Landfill mining, Municipal solid waste, Recycling, Construction debris.

  15. Strategic plan for the Persian Gulf region: Options for deterring and/or defeating an emerging threat. Master's thesis

    SciTech Connect

    Ward, M.W.

    1992-12-17

    The Persian Gulf region is, in all likelihood, going to remain crucial to American interests through the next several decades. The world depends on the petroleum reserves of the Gulf region to fuel its economic engine. The recent history of the region has been rife with conflict, and the U.S. has had to intervene militarily on several occasions to ensure its vital interests were protected. This thesis examines the strategic circumstances in the Gulf region and ways in which American political, diplomatic, and military policy can help shape the environment to conform to its interests. Several scenarios are developed which attempt to forecast the results of different environments on regional stability. The thesis reaches the conclusion that the United States must take a proactive role if its short- and long-term interests are to be protected. The short-term goal of U.S. policy must be to maintain a balance of power and regional correlation of forces which serves to deter any would-be aggressor nations. In the long run, the United States must seek a comprehensive regional peace. Various methods of achieving these goals are examined....Persian Gulf, Arms Proliferation, Strategic Planning, Gulf Cooperation Council, GCC, Regional Deterrence, Middle East, Arms Control, Scenario Development, Iraq, Iran, Saudi Arabia, Regional Security Strategy.

  16. High recall document content extraction

    NASA Astrophysics Data System (ADS)

    An, Chang; Baird, Henry S.

    2011-01-01

    We report methodologies for computing high-recall masks for document image content extraction, that is, the location and segmentation of regions containing handwriting, machine-printed text, photographs, blank space, etc. The resulting segmentation is pixel-accurate, which accommodates arbitrary zone shapes (not merely rectangles). We describe experiments showing that iterated classifiers can increase recall of all content types, with little loss of precision. We also introduce two methodological enhancements: (1) a multi-stage voting rule; and (2) a scoring policy that views blank pixels as a "don't care" class with other content classes. These enhancements improve both recall and precision, achieving at least 89% recall and at least 87% precision among three content types: machine-print, handwriting, and photo.

  17. [Exploring dream contents by neuroimaging].

    PubMed

    Horikawa, Tomoyasu; Kamitani, Yukiyasu

    2014-04-01

    Dreaming is a subjective experience during sleep that is often accompanied by vivid perceptual and emotional contents. Because of its fundamentally subjective nature, the objective study of dream contents has been challenging. However, since the discovery of rapid eye movements during sleep, scientific knowledge on the relationship between dreaming and physiological measures including brain activity has accumulated. Recent advances in neuroimaging analysis methods have made it possible to uncover direct links between specific dream contents and brain activity patterns. In this review, we first give a historical overview on dream researches with a focus on the neurophysiological and behavioral signatures of dreaming. We then discuss our recent study in which visual dream contents were predicted, or decoded, from brain activity during sleep onset periods using machine learning-based pattern recognition of functional MRI data. We suggest that advanced analytical tools combined with neural and behavioral databases will reveal the relevance of spontaneous brain activity during sleep to waking experiences. PMID:24748094

  18. Mercury content of Illinois soils

    USGS Publications Warehouse

    Dreher, G.B.; Follmer, L.R.

    2004-01-01

    For a survey of Illinois soils, 101 cores had been collected and analyzed to determine the current and background elemental compositions of Illinois soils. Mercury and other elements were determined in six samples per core, including a surface sample from each core. The mean mercury content in the surface samples was 33 ?? 20 ??g/kg soil, and the background content was 20 ?? 9 ??g/kg. The most probable sources of mercury in these soils were the parent material, and wet and dry deposition of Hg0 and Hg2+ derived from coal-burning power plants, other industrial plants, and medical and municipal waste incinerators. Mercury-bearing sewage sludge or other fertilizers applied to agricultural fields could have been the local sources of mercury. Although the mercury content correlated with organic carbon content or clay content in individual cores, when all the data were considered, there was no strong correlation between mercury and either the organic carbon or the clay-size content.

  19. Air sampling sensors, the Open Skies Treaty, and verifying the chemical weapons convention. Master`s thesis

    SciTech Connect

    Rowe, G.D.

    1995-12-01

    This thesis examines a novel proposal to join two separate arms control measures to achieve unique counterproliferation benefits. The Open Skies Treaty (OST) is a confidence-building measure between the states of NATO and the former Warsaw Pact. The Chemical Weapons Convention (CWC) attempts to eliminate an entire category of weapons of mass destruction. OST overflights could be used to verify the CWC, aiding CWC inspectors to plan their inspections. This cross-treaty measure could be enhanced further with the addition of air sampling sensors capable of testing for chemical weapons production, creating inter-treaty synergy. Obstacles for this inter-treaty coordination include the lack of formal mechanisms in either treaty for a complementary role and the lack of political impetus to effect it.

  20. Parallel Ada implementation of a multiple-model Kalman-filter tracking system: a software engineering approach. Master's thesis

    SciTech Connect

    Lemanski, W.J.

    1989-03-01

    The success of the Strategic Defense Initiative depends directly on significant advances in both computer hardware and software development technologies. Parallel architectures and the Ada programming language have advantages that make them candidates for use in SDI command and control computer systems. This thesis examines those advantages in the context of an SDI-type application: implementation of a Kalman-filter tracking system. This research consists of three parts. The first is a set of software engineering guidelines developed for use in creating parallel designs suitable for implementation in Ada. These guidelines cover the design process from initial problem analysis to final detailed design. Methods of problem decomposition are discussed, as are language partitioning strategies. Justification is provided for using the Ada task construct for process boundaries, and Ada multitasking design issues are reviewed. A parallel software design methodology is also described.

  1. Study of magnetic activity effects on the thermospheric winds in the low ionosphere. Master`s thesis

    SciTech Connect

    Davila, R.C.

    1994-09-01

    The purpose of this thesis is to examine the effects of magnetic activity on the low latitude F-region thermospheric winds. The F-region (120-1600 km) is a partially ionized medium where O+ and O are the major ion and neutral species, respectively. The thermospheric winds at these altitudes are driven primarily by pressure gradient forces resulting from the solar heating during the day and cooling at night. For this study, the author used measured Fabry-Perot Interferometer (FPI) winds at Arequipa (16.5 deg S, 71.5 deg W) and measured FPI and incoherent Scatter Radar (ISR) winds at Arecibo (18.6 deg N, 66.8 deg W).

  2. Survivability of the hardened mobile launcher when attacked by a hypothetical rapidly retargetable ICBM system. Master's thesis

    SciTech Connect

    Gearhart, D.J.; Merrow, S.F.

    1986-03-01

    This thesis evaluates the survivability of the hardened mobile launcher system (HML) against a hypothetical enemy ICBM system. The hypothetical system has two key capabilities: it can obtain near real-time intelligence information regarding the HML's location, and it can be retargeted in flight (as necessary) according to the intelligence information. Thus, the hypothetical ICBM threat systems can attack individual HMLs directly rather than rely on a barrage attack against HML bases. Monte Carlo simulation is used to approach the problem. The model is an MBASIC computer program, written and runs on an Apple Macintosh computer. The model simulates the flight of the attacking ICBMs (there may be as few as one or as many as 14 warheads directed at each HML) and the random dispersal tactics of a single HML. The model determines the locations of the detonations and the location of the HML at time of detonation. Based on these locations, probability of kill due to peak-blast overpressure is calculated. A key parameter in the model is intelligence / retargeting cycle time -- the time required to obtain intelligence and retarget accordingly. This time is varied from 1-30 minutes. The model also allows variations in HML speed and hardness and threat system CEP. A subroutine for examining the effects of neutron fratricide on the attacking warheads is included (although the effects were found to be negligible). The thesis concludes that very small intelligence/retargeting cycle times are required for this to be an effective weapon system against the HML. Thus, with today's (or near future) technology, the HML can be considered a very survivable system.

  3. 27 CFR 7.71 - Alcoholic content.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Alcoholic content. 7.71... Content Statements § 7.71 Alcoholic content. (a) General. Alcoholic content and the percentage and... alcoholic content is stated, and the manner of statement is not required under State law, it shall be...

  4. 27 CFR 4.37 - Net contents.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Net contents. 4.37 Section... contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is... net content of wine for which no standard of fill is prescribed in § 4.72 shall be stated in...

  5. 27 CFR 7.71 - Alcoholic content.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Alcoholic content. 7.71... Content Statements § 7.71 Alcoholic content. (a) General. Alcoholic content and the percentage and... alcoholic content is stated, and the manner of statement is not required under State law, it shall be...

  6. 27 CFR 4.37 - Net contents.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Net contents. 4.37 Section... contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is... net content of wine for which no standard of fill is prescribed in § 4.72 shall be stated in...

  7. 27 CFR 7.71 - Alcoholic content.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Alcoholic content. 7.71... Content Statements § 7.71 Alcoholic content. (a) General. Alcoholic content and the percentage and... alcoholic content is stated, and the manner of statement is not required under State law, it shall be...

  8. 27 CFR 4.37 - Net contents.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Net contents. 4.37 Section... contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is... net content of wine for which no standard of fill is prescribed in § 4.72 shall be stated in...

  9. 27 CFR 4.37 - Net contents.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Net contents. 4.37 Section... contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is... net content of wine for which no standard of fill is prescribed in § 4.73 shall be stated in...

  10. 27 CFR 4.37 - Net contents.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Net contents. 4.37 Section... contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is... net content of wine for which no standard of fill is prescribed in § 4.72 shall be stated in...

  11. 27 CFR 7.71 - Alcoholic content.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Alcoholic content. 7.71... Content Statements § 7.71 Alcoholic content. (a) General. Alcoholic content and the percentage and... alcoholic content is stated, and the manner of statement is not required under State law, it shall be...

  12. 27 CFR 7.71 - Alcoholic content.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Alcoholic content. 7.71... Content Statements § 7.71 Alcoholic content. (a) General. Alcoholic content and the percentage and... alcoholic content is stated, and the manner of statement is not required under State law, it shall be...

  13. Learning Language through Content: Learning Content through Language.

    ERIC Educational Resources Information Center

    Met, Myriam

    1991-01-01

    A definition and description of elementary school content-based foreign language instruction notes how it promotes natural language learning and higher-order thinking skills, and also addresses curriculum development, language objective definition, and specific applications in mathematics, science, reading and language arts, social studies, and…

  14. Content Management for a Content-Rich Website.

    ERIC Educational Resources Information Center

    Honeysett, Nik

    Over the last year the J. Paul Getty Trust's Web presence has evolved from a group of disparate, independently maintained Web sites into a homogeneous consistently branded one. This transformation recently culminated with the implementation of a leading Content Management System (CMS). There were and are many process-changes and challenges in…

  15. [Monitoring urea content during hemodialysis].

    PubMed

    Eventov, V L; Andrianova, M Iu; Nefedkin, S I; Eventova, O V

    2003-01-01

    The urea content monitoring during hemodialysis enables the feed-back within the system "patient--artificial kidney--patient". The existing methods of determining the concentration of urea in the dialyzing solution require an expendable reagent, i.e. urease, they are discrete and need often a calibration. The electrochemical urea analyzer, worked out by the authors, is easy in use, it provides a continues information about the urea concentration and does not virtually need any calibration. Besides, the plotter, belonging to the set, provides the graphic information about the dynamic changes of urea content. PMID:12924215

  16. The Preservation of Digital Content

    ERIC Educational Resources Information Center

    Cloonan, Michele Valerie; Sanett, Shelby

    2005-01-01

    The authors are conducting a three-part study to evaluate current trends in the preservation of digital content, with an emphasis on electronic records. The study emanated from the authors' work on the Preservation Task Force of the International Research on Permanent Authentic Records in Electronic Systems (InterPARES) project. This article…

  17. Digital Content: Making Learning Relevant

    ERIC Educational Resources Information Center

    Levin, Douglas A.

    2011-01-01

    Approximately 15 states are changing their policies to give school districts more flexibility in acquiring content. They have changed laws or policies or have bills pending in state legislatures to redefine "textbooks". Most of those changes are similar to the approach Indiana took in its new law: a "textbook" is not only a book but also

  18. Content of the History Course

    ERIC Educational Resources Information Center

    Lewy, Arieh

    1977-01-01

    Criteria are described for selecting specific issues, events, and documents to be covered in history courses. Teachers should base content selection on basic concepts within the discipline, social needs and values of the class, pedagogical considerations, and the principle of economy in meeting multiple needs. (Author/AV)

  19. Reading in the Content Areas.

    ERIC Educational Resources Information Center

    Laffey, James L., Ed.

    The purpose of this monograph is twofold. First, it reviews, analyzes, and synthesizes where possible the findings of selected research related to content reading which has been conducted during the past two decades. Secondly, it describes how the findings of this research apply to classroom instruction. The topics discussed are: Reading in…

  20. Active Responding in Content Classrooms.

    ERIC Educational Resources Information Center

    Davey, Beth

    1989-01-01

    Describes how Multiple Response Techniques (MRTs) can be used before, during, and after reading to help students better comprehend content material. Argues that MRTs enhance comprehension by engaging all students, focusing on students' strengths, training students in reflectivity and self-monitoring, and allowing the teacher quick evaluation of…

  1. Profiling soil water content sensor

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A waveguide-on-access-tube (WOAT) sensor system based on time domain reflectometry (TDR) principles was developed to sense soil water content and bulk electrical conductivity in 20-cm (8 inch) deep layers from the soil surface to depths of 3 m (10 ft) (patent No. 13/404,491 pending). A Cooperative R...

  2. Open Content in Open Context

    ERIC Educational Resources Information Center

    Kansa, Sarah Whitcher; Kansa, Eric C.

    2007-01-01

    This article presents the challenges and rewards of sharing research content through a discussion of Open Context, a new open access data publication system for field sciences and museum collections. Open Context is the first data repository of its kind, allowing self-publication of research data, community commentary through tagging, and clear…

  3. Optimizing chlorophyll content in soybean

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Traditionally, leaf chlorophyll content has not been among the target traits for improving crop yield. However, current chlorophyll concentrations may be in excess of the amount that would maximize the season integral of photosynthesis in a crop monoculture, such as soybean, that achieves a high lea...

  4. Digital Content: Making Learning Relevant

    ERIC Educational Resources Information Center

    Levin, Douglas A.

    2011-01-01

    Approximately 15 states are changing their policies to give school districts more flexibility in acquiring content. They have changed laws or policies or have bills pending in state legislatures to redefine "textbooks". Most of those changes are similar to the approach Indiana took in its new law: a "textbook" is not only a book but also…

  5. Colorado Model Content Standards: Science

    ERIC Educational Resources Information Center

    Colorado Department of Education, 2007

    2007-01-01

    The Colorado Model Content Standards for Science specify what all students should know and be able to do in science as a result of their school studies. Specific expectations are given for students completing grades K-2, 3-5, 6-8, and 9-12. Five standards outline the essential level of science knowledge and skills needed by Colorado citizens to…

  6. Content Priorities for Farm Mechanics

    ERIC Educational Resources Information Center

    Knotts, C. Don; Webb, Earl S.

    1974-01-01

    Fifty successful young Texas farmers evaluated agricultural mechanics skills (in the broad areas of farm power and machinery, farm shop, farm electricity, buildings and conveniences, and soil and water management) in terms of their importance. Teachers can use the findings to plan course content relevant to their students' needs. (AJ)

  7. Motivating Students for Content Mastery

    ERIC Educational Resources Information Center

    Mantell, Colleen T.

    2013-01-01

    With ever-changing government mandates, new standards for accountability, and the uniquely diverse classroom of this millennium, educators are scrambling to meet the needs of all students, such that each unique learner, regardless of background, special needs, or level of commitment to coursework can demonstrate content mastery. In this article,…

  8. Open Content in Open Context

    ERIC Educational Resources Information Center

    Kansa, Sarah Whitcher; Kansa, Eric C.

    2007-01-01

    This article presents the challenges and rewards of sharing research content through a discussion of Open Context, a new open access data publication system for field sciences and museum collections. Open Context is the first data repository of its kind, allowing self-publication of research data, community commentary through tagging, and clear

  9. Telenovelas as Art Curriculum Content

    ERIC Educational Resources Information Center

    Christopoulou, Martha

    2010-01-01

    In February and March 2007, the author investigated the possibilities of visual culture art education in two Greek Primary schools in Athens with students in Grades 5 and 6. One of her goals was to determine whether or not the telenovela genre was appropriate as curriculum content in primary art education. She chose telenovelas because they are a…

  10. Thesis and Antithesis

    ERIC Educational Resources Information Center

    Baggaley, Jon

    2012-01-01

    Behind every educational concept an opposing notion is waiting for recognition. Despite their avowed objectives, however, academic debates do not always encourage the discussion of opposing views. A review of sessions at the December 2011 Online Educa Conference illustrates that point and others about academic meetings. Opposing viewpoints may be

  11. A CPV Thesis

    NASA Astrophysics Data System (ADS)

    Schultz, David S.; Ghosh, Shondip; Grimmer, Christopher S.; Mack, Hunter

    2011-10-01

    The viability of a concentrator technology is determined by five interrelated factors: economic benefit, cell performance under concentration, thermal management, optical performance and manufacturability. Considering these factors, the 5- 10x concentration range is ideal for silicon-based receivers because this level of concentration captures the bulk of available economic gains while mitigating technical risk. Significant gains in capital efficiency are forsaken below the 5x concentration level. Above the 10x level of concentration, marginal improvements to economic benefit are achieved, but threats to reliability emerge and tend to erode the available economic benefit. Furthermore, optic solutions that provide for concentration above 10x tend to force a departure from low-profile flat-plate designs that are most adoptable. For silicon based receivers, a 5-10x level of concentration within a traditional module form factor is optimal.

  12. Thesis and Antithesis

    ERIC Educational Resources Information Center

    Baggaley, Jon

    2012-01-01

    Behind every educational concept an opposing notion is waiting for recognition. Despite their avowed objectives, however, academic debates do not always encourage the discussion of opposing views. A review of sessions at the December 2011 Online Educa Conference illustrates that point and others about academic meetings. Opposing viewpoints may be…

  13. Vector computer memory bank contention

    NASA Technical Reports Server (NTRS)

    Bailey, D. H.

    1985-01-01

    A number of vector supercomputers feature very large memories. Unfortunately the large capacity memory chips that are used in these computers are much slower than the fast central processing unit (CPU) circuitry. As a result, memory bank reservation times (in CPU ticks) are much longer than on previous generations of computers. A consequence of these long reservation times is that memory bank contention is sharply increased, resulting in significantly lowered performance rates. The phenomenon of memory bank contention in vector computers is analyzed using both a Markov chain model and a Monte Carlo simulation program. The results of this analysis indicate that future generations of supercomputers must either employ much faster memory chips or else feature very large numbers of independent memory banks.

  14. Vector computer memory bank contention

    NASA Technical Reports Server (NTRS)

    Bailey, David H.

    1987-01-01

    A number of vector supercomputers feature very large memories. Unfortunately the large capacity memory chips that are used in these computers are much slower than the fast central processing unit (CPU) circuitry. As a result, memory bank reservation times (in CPU ticks) are much longer than on previous generations of computers. A consequence of these long reservation times is that memory bank contention is sharply increased, resulting in significantly lowered performance rates. The phenomenon of memory bank contention in vector computers is analyzed using both a Markov chain model and a Monte Carlo simulation program. The results of this analysis indicate that future generations of supercomputers must either employ much faster memory chips or else feature very large numbers of independent memory banks.

  15. Content-based image retrieval

    NASA Astrophysics Data System (ADS)

    Zaheer, Yasir

    2010-02-01

    Large collection of information is being created in many areas of modern life on daily basis. This information exists in many forms from plain text to high resolution multimedia. Today computers are many times faster than human in text based searching using keywords and indexing but the story is totally different in case of multimedia. In context of image retrieval, acquiring storing, sorting and transmitting photos is now trivial, but it is significantly harder to manipulate, index, sort, filter or search through them. The research presents an overview of different techniques used in contentbased image retrieval (CBIR) systems and what are some of the proposed ways of querying such searches that are useful when specific keywords for the object are not known. Advances, applications and problems in content-based image retrieval are also discussed. Moreover a system is also developed for content based image retrieval and tested with two database containing 1,000 and 10,000 images respectively.

  16. A large motion zero-gravity suspension system for experimental simulation of orbital construction and deployment. M.S. Thesis

    NASA Technical Reports Server (NTRS)

    Straube, Timothy Milton

    1993-01-01

    The design and implementation of a vertical degree of freedom suspension system is described which provides a constant force off-load condition to counter gravity over large displacements. By accommodating motions up to one meter for structures weighing up to 100 pounds, the system is useful for experiments which simulate orbital construction events such as docking, multiple component assembly, or structural deployment. A unique aspect of this device is the combination of a large stroke passive off-load device augmented by electromotive torque actuated force feedback. The active force feedback has the effect of reducing break-away friction by a factor of twenty over the passive system alone. The thesis describes the development of the suspension hardware and the control algorithm. Experiments were performed to verify the suspensions system's effectiveness in providing a gravity off-load and simulating the motion of a structure in orbit. Additionally, a three dimensional system concept is presented as an extension of the one dimensional suspension system which was implemented.

  17. Controlling Vision - The Photometry of Karl Friedrich Zoellner PhD Thesis, with an Appendix with photographic illustrations

    NASA Astrophysics Data System (ADS)

    Staubermann, K. B.

    Using my training as an astronomer and drawing on resources such as museums, instrument collections, and archives, I have rebuilt Zoellner's astro-photometer designed by Zoellner in the late 1850s when he was working for his doctoral thesis at Basel University. The photometer was designed to compare an artificial star with a real star by means of a half-transparent screen which allowed simultaneously observation of the two together. The brightness and colour of the artificial star could be matched those of the real star by means of polarisation. After completing his instrument Zoellner observed with it at Berlin for almost two years. I have both replicated the instrument and carried out observations following Zoellner's own records. The replication of the instrument included all its optical components, the brass and wooden parts and the town gas used to produce the artificial star. This dissertation will follow the line of investigation of historical practice. The beginnings of nineteenth-century photometry will be presented, followed by a description of the Zoellner photometer, its replication and the observations carried out with the replica. I will contextualize my work based on my insights with the photometer, and then trace its career through the second half of the nineteenth century.

  18. Atmospheric emission method of calculating the neutral atmosphere and charged particle densities in the upper atmosphere. Master's thesis

    SciTech Connect

    McElroy, K.L.

    1992-12-01

    This thesis presents a method for the determination of neutral gas densities in the ionosphere from rocket-borne measurements of UV atmospheric emissions. Computer models were used to calculate an initial guess for the neutral atmosphere. Using this neutral atmosphere, intensity profiles for the N2 (0,5) Vegard-Kaplan band, the N2 Lyman-Birge-Hopfield band system, and the OI2972 A line were calculated and compared with the March 1990 NPS MUSTANG data. The neutral atmospheric model was modified and the intensity profiles recalculated until a fit with the data was obtained. The neutral atmosphere corresponding to the intensity profile that fit the data was assumed to be the atmospheric composition prevailing at the time of the observation. The ion densities were then calculated from the neutral atmosphere using a photochemical model. The electron density profile calculated by this model was compared with the electron density profile measured by the U.S. Air Force Geophysics Laboratory at a nearby site.

  19. Developing an emission factor for hazardous air pollutants for an F-16 using JP-8 fuel. Master's thesis

    SciTech Connect

    Van Schaack, D.J.

    1994-09-01

    The 1990 Clean Air Act amendments drastically changed the legislation of hazardous air pollutants (HAPs) or air toxics. Title 3 of the act which specifically addresses HAPs now lists 189 substances which may require regulation as air toxics. Consequently, the reporting of HAP emissions from all Air Force operations will be required in the future. However, the Department of Defense (DoD) does not have methods available to report this information. This thesis develops emission factors for selected HAPs from an F-16 CD aircraft/F110 engine operating on JP-8 fuel. The methodology included: determining which HAPs should be selected, using past aircraft emission studies to estimate HAP concentrations for the F110 engine using JP-8 fuel selecting an emission factor formula to calculate emission factors for each HAP, testing the developed emission factors on an airfield operation. The estimated emission factors for each HAP for the F110 engine are low for all engine modes mainly because the F110 is a newer engine with high combustion efficiency. The resultant emission inventory shows that many HAPs would be classified as major sources under current Title 3 legislation. Thus, it is important to assess airfield operations to ensure they remain in compliance with the upcoming Title 3 legislation.

  20. Simulation of a solar powered electric vehicle under the constraints of the world solar challenge. Master`s thesis

    SciTech Connect

    Roerig, S.J.

    1995-03-01

    Development of an effective method for evaluation of alternative energy sources in the automotive industry has always been a necessity for cost efficient design analysis. One viable alternative energy source is electricity. In the present day environment of shrinking fossil fuel supplies and environmental awareness, electric powered vehicles are becoming a low cost, non-polluting, alternative means of transportation. The analysis of reliable electric propulsion can be expensive without a modeling tool for evaluating design strategies before vehicle construction. This thesis explores electricity as an alternative energy source for the automobile of tomorrow. Under the guidelines of the World Solar challenge, a solar powered electric vehicle, using a permanent-magnet brushless dc motor has been modeled and simulated in Simulink (Dynamic System Simulation Software). The simulations were performed with the goal of determining the optimum configuration to efficiently utilize the power supplied from the solar array, batteries, and motor. The simulated vehicle was `driven` over various terrain`s and at various speeds. The results obtained confirm this simulation as an efficient design tool and present an example of an optimum vehicle speed for one particular vehicle configuration.

  1. Ambulatory assessment of skin conductivity during first thesis presentation: lower self-confidence predicts prolonged stress response.

    PubMed

    Elfering, Achim; Grebner, Simone

    2011-06-01

    In this field study self-confidence was tested to predict the course of galvanic electrodermal stress response prior, during and after public speaking. Ten graduate students initially rated their self-confidence and afterwards presented their thesis proposals orally in a 10-min presentation to their supervisor and peers. Galvanic skin response level was measured throughout and analysed for 10 min prior to, during, and 10 min after the presentation. Two major galvanic electrodermal stress response types were observed. Five students showed a 'healthy response', i.e. an anticipatory increase in electrodermal conductance, followed by a decrease after termination of the presentation. The other five students showed a steady increase of skin conductance during and after their presentation ('prolonged response'). In line with the allostatic load model the 'prolonged response' group reported significantly lower self-confidence before presentation than the 'healthy response' group (p < 0.01). Self-confidence is a resource in novices facing an unfamiliar stressor. PMID:21533677

  2. Ground support electronic interface for the ionospheric spectroscopy and atmospheric chemistry (ISAAC) ultraviolet spectrograph. Master`s thesis

    SciTech Connect

    MacQuarrie, J.A.

    1994-12-01

    This thesis details the design and development of an electronic Ground Support Equipment (GSE) interface for the Naval Postgraduate School`s (NPS) Ionospheric Spectroscopy and Atmospheric Chemistry (ISAAC) spectrograph. The ISAAC spectrograph, which was designed at NPS and built by Research Support Instruments, Inc., is intended to observe atmospheric airglow and auroral emissions in the ultraviolet (1800A to 3300A) wavelength region. It is to be included as one of several sensors flown onboard the Advanced Research and Global Observation Satellite (ARGOS), which is scheduled for an early 1996 launch. The GSE was developed in order to allow ground testing and calibration of the instrument prior to and during integration with the satellite bus. The GSE includes hardware to provide the connections between various components of the spectrograph and a Macintosh computer with an installed I/O card. The GSE also includes a user-friendly software interface written with LabVIEW 2.2 that provides the ability to view spectra obtained from the instrument and to remotely control mechanical functions of the spectrograph. An initial wavelength calibration of the spectrograph has been performed using the completed GSE.

  3. Application of modern-control-design methodologies to a multi-segmented deformable-mirror system. Master's thesis

    SciTech Connect

    Vaughan, E.M.

    1991-05-23

    The multi-segmented deformable mirror system is proposed as an element for a portion of a ballistic missile defense system. The size of the mirror required for this defense function requires that the mirror be developed in segments, and then these segments should be phased together to produce one continuous, large optic. The application of multivariable control system synthesis techniques to provide closed-loop wavefront control of the deformable mirror system is the problem discussed in this thesis. The method of H at infinity control system synthesis using loop-shaping techniques was used to develop a controller that meets a robust performance specification. The number and location of sensors was treated as a design variable, and the structured singular value (mu) was used to determine the performance robustness of the deformable mirror system. Decentralized control issues are also addressed through the use of necessary conditions in an effort to determine a suitable decentralized control structure with performance similar to that of the centralized controller.

  4. Structure for a knowledge-based system to estimate Soviet tactics in the air-land battle. Master's thesis

    SciTech Connect

    Fletcher, A.M.

    1988-03-01

    The purpose of this thesis was to build a prototype decision aid that can use knowledge about Soviet military doctrine and tactics to infer when, where, and how the Soviet Army plans to attack NATO defenses given intelligence data about Soviet (Red) military units, terrain data, and the positions of the NATO (Blue) defenses. Issues are raised that must be resolved before such a decision aid, which is part of the Rapid Application of Air Power concept, can become operational. First examined is the need to shorten the C2 decision cycle in order for the ATOC staff to keep pace with the tempo of modern warfare. The Rapid Application of Air Power is a concept that includes automating various steps in the decision cycle to allow air power to be applied proactively to stop Soviet forces before they obtain critical objectives. A structure is presented for automating the second step in the decision cycle, assessing and clarifying the situation, through a knowledge-based decision aid for interpreting intelligence data from the perspective of Soviet (Red) doctrine and estimating future Red tactical objectives and maneuvers.

  5. Radium-226 content of beverages

    SciTech Connect

    Kiefer, J. )

    1989-11-01

    Radium contents of commercially obtained beer, wine, milk and mineral waters were measured. All distributions were log-normal with the following geometrical mean values: beer: 2.1 X 10(-2) Bq L-1; wine: 3.4 X 10(-2) Bq L-1; milk: 3 X 10(-3) Bq L-1; normal mineral water: 4.3 X 10(-2) L-1; medical mineral water: 9.4 X 10(-2) Bq L-1.

  6. Laser photoionization time-of-flight mass spectrometry of nitrated polycyclic aromatic hydrocarbons and nitrated heterocyclic compounds. Master's thesis

    SciTech Connect

    Noyes, R.A.

    1993-01-01

    Partial Contents: Laser Desorption-Laser Photoionization Time-of-Flight Mass Spectrometry; Basic Principles of TOFMS; Factors Affecting Flight Time; Source of Broadening; Laser Desorption; Theory of Multiphoton Ionization: Application to Mass Spectrometry; Quantum Theory of MPI; Time-Dependent Perturbation Theory; Time-Dependent Coefficients; Probability of a Two-Photon Process; and Attributes of R2PI.

  7. Content metamorphosis in synthetic holography

    NASA Astrophysics Data System (ADS)

    Desbiens, Jacques

    2013-02-01

    A synthetic hologram is an optical system made of hundreds of images amalgamated in a structure of holographic cells. Each of these images represents a point of view on a three-dimensional space which makes us consider synthetic holography as a multiple points of view perspective system. In the composition of a computer graphics scene for a synthetic hologram, the field of view of the holographic image can be divided into several viewing zones. We can attribute these divisions to any object or image feature independently and operate different transformations on image content. In computer generated holography, we tend to consider content variations as a continuous animation much like a short movie. However, by composing sequential variations of image features in relation with spatial divisions, we can build new narrative forms distinct from linear cinematographic narration. When observers move freely and change their viewing positions, they travel from one field of view division to another. In synthetic holography, metamorphoses of image content are within the observer's path. In all imaging Medias, the transformation of image features in synchronisation with the observer's position is a rare occurrence. However, this is a predominant characteristic of synthetic holography. This paper describes some of my experimental works in the development of metamorphic holographic images.

  8. Selenium content of game meat

    SciTech Connect

    Medeiros, L.C.; Belden, R.P. Univ. of Wyoming, Laramie )

    1991-03-11

    Selenium (Se) content of elk, deer, bison and beef were measured and compared. Samples were obtained from animals grazed on soil known to contain high, but variable amounts of Se. Beef were feedlot grazed and elk, deer, and bison were from captive or semi-captive herds. Selenium content was determined by graphite furnace after high pressure wet microwave digestion of samples. Deer and bison contained more Se than elk or beef. On a dry weight basis, deer contained more Se than bison. Game species contained more Se than beef. Within samples from male elk and deer and elk and bison of both genders, there were interactions between specie and muscle effects. Muscle and gender did not significantly influence Se content. The animals from which these samples were taken were supplemented with feeds grown on high Se containing soils, which was reflected in all values. Se values were twofold higher than those previously reported for meat. Those consuming large quantities of game from areas with high Se soil may need to monitor Se intake to avoid consuming excessive quantities.

  9. 27 CFR 5.38 - Net contents.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Net contents. 5.38 Section... Spirits § 5.38 Net contents. (a) Bottles conforming to metric standards of fill. The net contents of....47a. (b) Bottles not conforming to the metric standards of fill. The net contents for...

  10. 27 CFR 5.38 - Net contents.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Net contents. 5.38 Section... Spirits § 5.38 Net contents. (a) Bottles conforming to metric standards of fill. The net contents of....47a. (b) Bottles not conforming to the metric standards of fill. The net contents for...

  11. 7 CFR 58.134 - Sediment content.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 3 2012-01-01 2012-01-01 false Sediment content. 58.134 Section 58.134 Agriculture... Milk § 58.134 Sediment content. (a) Method of testing. Methods for determining the sediment content of... for the Examination of Dairy Products. Sediment content shall be based on comparison with...

  12. 27 CFR 5.38 - Net contents.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Net contents. 5.38 Section... Spirits § 5.38 Net contents. (a) Bottles conforming to metric standards of fill. The net contents of....47a. (b) Bottles not conforming to the metric standards of fill. The net contents for...

  13. 46 CFR 160.054-4 - Contents.

    Code of Federal Regulations, 2010 CFR

    1997-10-01

    ... 46 Shipping 6 1997-10-01 1997-10-01 false Contents. 160.054-4 Section 160.054-4 EQUIPMENT... Liferafts § 160.054-4 Contents. (a) Individual cartons. Cartons and their contents shall be the type...) Instructions. Instructions for the use of the contents of the first-aid kit shall be printed in legible...

  14. Developing Domain Ontologies for Course Content

    ERIC Educational Resources Information Center

    Boyce, Sinead; Pahl, Claus

    2007-01-01

    Ontologies have the potential to play an important role in instructional design and the development of course content. They can be used to represent knowledge about content, supporting instructors in creating content or learners in accessing content in a knowledge-guided way. While ontologies exist for many subject domains, their quality and…

  15. 27 CFR 5.37 - Alcohol content.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Alcohol content. 5.37... Distilled Spirits § 5.37 Alcohol content. (a) Statements—(1) Mandatory statement. The alcohol content for... products containing a significant amount of solid material shall state the alcohol content at the time...

  16. 27 CFR 5.38 - Net contents.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Net contents. 5.38 Section... Spirits § 5.38 Net contents. (a) Bottles conforming to metric standards of fill. The net contents of....47a. (b) Bottles not conforming to the metric standards of fill. The net contents for...

  17. 27 CFR 5.38 - Net contents.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Net contents. 5.38 Section... Spirits § 5.38 Net contents. (a) Bottles conforming to metric standards of fill. The net contents of....47a. (b) Bottles not conforming to the metric standards of fill. The net contents for...

  18. 7 CFR 58.134 - Sediment content.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Sediment content. 58.134 Section 58.134 Agriculture... Milk § 58.134 Sediment content. (a) Method of testing. Methods for determining the sediment content of... for the Examination of Dairy Products. Sediment content shall be based on comparison with...

  19. 27 CFR 19.644 - Net contents.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Net contents. 19.644... Requirements § 19.644 Net contents. The net contents of liquor bottles shall be shown on the label, unless the statement of the net contents is permanently marked on the side, front, or back of the bottle. (Sec....

  20. 27 CFR 5.37 - Alcohol content.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Alcohol content. 5.37... Distilled Spirits § 5.37 Alcohol content. (a) Statements—(1) Mandatory statement. The alcohol content for... products containing a significant amount of solid material shall state the alcohol content at the time...