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    • 5. Objectives That Students Understand.pdf.jpg
    • Article


    • Authors: Marzano, Robert J. (2011-05)

    • The article discusses effective and ineffective techniques teachers utilize in communicating instructional objectives to students. The article identifies ineffective approaches such as assuming students pay attention to written instructional objectives on a chalkboard, confusing instructional objectives with instructional activities, and using broad terms in writing instructional objectives. Effective techniques for communicating instructional objectives are presented, including letting allowing students to translate objectives into their own words, writing objectives at multiple levels, and restating objectives using other terms.

    • thvnu400000268.pdf.jpg
    • Thesis


    • Authors: Nguyễn, Lê Thanh An. (2015)

    • This research examines the organization of the dental care industry in two different aspects: the competition among dental care providers at practice level and the earnings of dentists at individual level. The dental care market in the United States is mainly made up of numerous private solo practice providers. However, it could not be characterized as the perfectly competitive market due to the complexity in the relationship among consumers, sellers, and payers, as well as the professional regulations. Chapter one uses repeat cross-section data from 1981 to 2011 of the American Dental Association Survey of Dental Practice (SDP) to estimate the degree of market power in the private de...

    • 3200563.pdf.jpg
    • Thesis


    • Authors: Orozco, Edusmildo (2006)

    • There are two general problems related to finite dynamical systems (FDS): the analysis and the synthesis (also known as the reverse engineering) problems. In the former, we are interested in uncovering the sequential structure of a given FDS. In the latter, given a prescribed structure, we have to find an appropriate FDS that accomplishes the intended behavior. In this work we reverse engineer FDSs related to two recent applications. One is the problem of finding an optimal linear (i.e., a matrix) FDS over the integers mod a prime p to efficiently compute FFTs with linear symmetries. For this, we propose O(p21og p) and O(p31og p) time algorithms for the two and three dimensional cases...

    • NR17487.PDF.jpg
    • Thesis


    • Authors: Wu, Guixing (2006)

    • In quantization-based digital watermarking, a watermark message is conveyed in the choice of different quantizers. Because of its advantage of rejecting interference from host signals, a quantization-based digital watermarking system has the property of high information embedding rate. In this thesis, we investigate the design, analysis and application of quantization-based digital watermarking systems. As watermarked signals are likely to be transmitted/stored in compressed formats in most applications, we first look into the integration of quantization-based digital water-marking with compression-joint watermarking and compression (JWC), and demonstrate its advantage over separate ...

    • 3244382.PDF.jpg
    • Thesis


    • Authors: Mao, Jia (2006)

    • With the speed of current technological changes, computation models are evolving to become more interactive and dynamic. These computation models often differ from traditional ones in that not every piece of the information needed for decision making is available a priori. Efficient algorithm design to solve these problems poses new challenges. In this work we present and study some interactive and dynamic computations and design efficient algorithmic schemes to solve them. Our approach for performance evaluation falls within the framework of worst-case analysis. The worst-case scenarios are analyzed through the incorporation of imaginary adversaries or adversarial input sequences. W...

    • 3235587.PDF.jpg
    • Thesis


    • Authors: Navilarekallu, Tejaswi (2006)

    • For a finite Galois extension K/Q of number fields with Galois group G and a motive M = M' h°(Spec(K))(O) with coefficients in Q[G], the equivariant Tamagawa number conjecture relates the special value L* (M, 0) of the motivic L-function to an element of Ko(Z[G];R) constucted via complexes associated to M. The conjecture for nonabelian groups G is very much unexplored. In this thesis, we will develop some techniques to verify the conjecture for Artin motives and motives attached to elliptic curves. In particular, we consider motives h°(Spec(K))(0) for an A4-extension K/Q and, hi (E x Spec(L))(1) for an S3-extension L/Q and an elliptic curve E/Q.

    • 3218835.PDF.jpg
    • Thesis


    • Authors: Wylie, William C. (2006)

    • We study the fundamental group of noncompact Riemannian manifolds with nonnegative Ricci curvature. We show that the fundamental group of a noncompact, complete, Riemannian manifold with nonnegative Ricci curvature and small linear diameter growth is almost the fundamental group of a large ball. We make this precise by studying semi-local fundamental groups. We also find relationships between the semi-local fundamental groups and special Gromov-Hausdorff limits of a manifold called tangent cones at infinity. As an application we show that any tangent cone at infinity of a complete open manifold with nonnegative Ricci curvature and small linear diameter growth is its own universal cove...

    • 3222343.PDF.jpg
    • Thesis


    • Authors: Steurer, Aliza (2006)

    • Let k be a number field, p a prime, and knr p the maximal unrami ed p-extension of k. Golod and Shafarevich focused the study of knr ,p/k on Gal(knr 'p/k). Let S be a set of primes of k (in nite or finite), and kS the maximal p-extension of k unrami ed outside S. Nigel Boston and C.R. Leedham-Green introduced a method that computes a presentation for Gal(kS k) in certain cases. Taking S = {(1) , Michael Bush used this method to compute possibilities for Gal(knr 2 k) for the imaginary quadratic fields k = Q( -2379) , Q( -445) , Q( -1015), and Q( -1595). In the case that k = Q( -2379), we illustrate a method that reduces the number of Bush's possibilities for Gal(knr ,2/k) from 8 to 4. ...

    • 18. Online options Require Right Fit.pdf.jpg
    • Article


    • Authors: Quillen, Ian (2011-08)

    • The article focuses on how E-learning( electronic learning) can benefit student who come from special or at-risk populations. Emphasis is placed upon the importance of recruiting researchers, educators and evaluators in the development of specialized programs. Research being done by the U. S. government and special agencies on the subject is also discussed.

    • 20. Online persuasion how the written word Drives wom.pdf.jpg
    • Article


    • Authors: Jin Li; Lingjing Zhan (2011-03)

    • The article presents advertising research on user-generated content on the Internet in which consumers offer reviews of commercial products, considering how such reviews generate word – of - mouth advertising. Two studies offering content analysis of such reviews are examined to determine what elements within them might be considered as most helpful to other consumers. It is noted that consumers expressed a strong preference for positive emotions and information about a product in online reviews. Implication of the findings of the two studies for testimonials an advertising are considered.

    • 24.ONLINE SOCIAL INTERACTIONS.pdf.jpg
    • Article


    • Authors: Chen, Yubo; Wang, Qi; Xie, Jinhong (2011-04)

    • Consumers’ purchase decisions can be influenced by others’ opinions, or word of mouth (WOM) and/or others’ actions, or observational learning (OL).Although information technologies are creating increasing opportunities for firms to facilitate and manage these two types of social interaction , to date, researchers have encountered difficulty in disentangling their competing effects and have provided limited insights into how these two social infuences might differ from and interact with each other. Using a unique natural experimental setting resulting from information policy shifts at the online seller Amazon.com, the authors design three longitudinal, quasi- experimental field studies...

    • NR14637.PDF.jpg
    • Thesis


    • Authors: Wu, Jingwei (2006)

    • This thesis undertakes an empirical study of software evolution by analyzing open source software (OSS) systems. The main purpose is to aid in understanding OSS evolution. The work centers on collecting large quantities of structural data cost-effectively and analyzing such data to understand software evolution dynamics (the mechanisms and causes of change and growth). We propose a multipurpose systematic approach to extracting program facts (e.g.. func¬tion calls). This approach is supported by a suite of C and C++ program extractors, which cover different steps in the program build process and handle both source and binary code. We present several heuristics to link facts extracted...

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    • Thesis


    • Authors: Pascu, Stefan (2006)

    • In this thesis we propose a novel way to achieve global network information dissemination in which some wavelengths are reserved exclusively for global control information exchange. We study the routing and wavelength assignment problem for the special communication pattern of non-blocking all-to-all broadcast in WDM optical networks. We provide efficient solutions to reduce the number of wavelengths needed for non-blocking all-to-all broadcast, in the absence of wavelength converters, for network information dissemination. We adopt an approach in which we consider all nodes to be tap-and-continue capable thus studying lighttrees rather than lightpaths. To the best of our knowledge, ...

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    • Thesis


    • Authors: Sun, Yong (2006)

    • The flow of a low-density polyethylene (LDPE 132i) in extrusion dies is simulated using the axisymmetric and planar elongational viscosities estimated in an earlier publication by Beaupre and Gupta. Elongational viscosity is found to have only a limited effect on the velocity distributions at the die exits. However, the predicted pressure drop and the temperature distributions in the dies changed significantly when the effect of elongational viscosity is included in the simulations. The numerical prediction was compared with the experimental data, the predicted pressure is in good agreement with the test results. A software for optimization of polymer extrusion dies is developed. Die...

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    • Thesis


    • Authors: Martin, Brent R. (2006)

    • The orchestrations that underlie the existence of even the simplest organisms are quite complex and extremely dynamic. In order to gain a greater understanding of the biochemistry underlying many unsolved biological problems, new tools are required to first visualize a phenomenon, and then perturb it to study its significance. Visualizing the dynamics of intracellular biochemistry has been enhanced greatly with widespread adoption of genetically encoded fluorescent proteins. Due to the large size of fluorescent proteins and their lack of chemical flexibility, the tetracysteine-biarsenical system was developed. This technology uses the combination of a short genetically encoded tag an...

    • 3241635.PDF.jpg
    • Thesis


    • Authors: Abu-Ghazaleh, Nayef Bassam (2006)

    • Web services have recently emerged as a de facto standard for building Grid and distributed computing infrastructures and applications. SOAP, a simple, interoperable, robust, and extensible protocol for the exchange of messages, is the most widely used communication protocol in the Web services model. SOAP’s XML-based message format hinders its performance, thus making it unsuitable in many scientific applications. The deserialization of SOAP messages, which includes processing of XML data and conversion of strings to in-memory data types, is the major performance bottleneck in a SOAP message exchange. The contributions of this dissertation address SOAP’s poor deserialization per¬for...

    • 3222859.PDF.jpg
    • Thesis


    • Authors: Leida, Johann Kristof (2006)

    • This is a dissertation in the field of MATHEMATICS: ALGEBRAIC TOPOLOGY: EQUIVARIANT HOMOTOPY THEORY (Mathematics Subject Classifications 55P91, 55Q91, and 22A22). Its main objects of study are orbifolds, which are geometric spaces generalizing smooth manifolds that allow for mild singularities. First introduced in the 1950's, orbifolds have become very impor¬tant in several fields of mathematics and physics in the past few decades, including differential geometry, mirror symmetry, and string theory. The aim of the study is to define new stable and unstable homotopy groups for orbifolds that provide sharper invariants than the unstable orbifold homotopy groups defined previously by T...

    • 3213579.PDF.jpg
    • Thesis


    • Authors: Phan, Jeffry Phuquoc (2006)

    • This thesis studies free resolutions of monomial ideals from combinatorial and order-theoretic viewpoints. The main object of study is the 1cm-lattice of a monomial ideal, which is a poset that determines the combinatorial type of the ideal's resolution. We construct the minimal monomial ideal for each finite atomic lattice L; the minimal ideal is the simplest ideal with Icm-lattice equal to L. Minimal ideals are universal and inherit many nice properties of other monomial ideals with the same 1cm-lattice, for example the Cohen-Macaulay property. Moreover, examination of the depolarizations of the minimal ideals allows us to prove a bound on the projective dimension of a monomial idea...