WorldWideScience

Sample records for window-based greedy contention

  1. On greedy and submodular matrices

    NARCIS (Netherlands)

    Faigle, U.; Kern, Walter; Peis, Britta; Marchetti-Spaccamela, Alberto; Segal, Michael

    2011-01-01

    We characterize non-negative greedy matrices, i.e., 0-1 matrices $A$ such that max $\\{c^Tx|Ax \\le b,\\,x \\ge 0\\}$ can be solved greedily. We identify submodular matrices as a special subclass of greedy matrices. Finally, we extend the notion of greediness to $\\{-1,0,+1\\}$-matrices. We present

  2. Greedy Gossip With Eavesdropping

    Science.gov (United States)

    Ustebay, Deniz; Oreshkin, Boris N.; Coates, Mark J.; Rabbat, Michael G.

    2010-07-01

    This paper presents greedy gossip with eavesdropping (GGE), a novel randomized gossip algorithm for distributed computation of the average consensus problem. In gossip algorithms, nodes in the network randomly communicate with their neighbors and exchange information iteratively. The algorithms are simple and decentralized, making them attractive for wireless network applications. In general, gossip algorithms are robust to unreliable wireless conditions and time varying network topologies. In this paper we introduce GGE and demonstrate that greedy updates lead to rapid convergence. We do not require nodes to have any location information. Instead, greedy updates are made possible by exploiting the broadcast nature of wireless communications. During the operation of GGE, when a node decides to gossip, instead of choosing one of its neighbors at random, it makes a greedy selection, choosing the node which has the value most different from its own. In order to make this selection, nodes need to know their neighbors' values. Therefore, we assume that all transmissions are wireless broadcasts and nodes keep track of their neighbors' values by eavesdropping on their communications. We show that the convergence of GGE is guaranteed for connected network topologies. We also study the rates of convergence and illustrate, through theoretical bounds and numerical simulations, that GGE consistently outperforms randomized gossip and performs comparably to geographic gossip on moderate-sized random geometric graph topologies.

  3. Greedy Deep Dictionary Learning

    OpenAIRE

    Tariyal, Snigdha; Majumdar, Angshul; Singh, Richa; Vatsa, Mayank

    2016-01-01

    In this work we propose a new deep learning tool called deep dictionary learning. Multi-level dictionaries are learnt in a greedy fashion, one layer at a time. This requires solving a simple (shallow) dictionary learning problem, the solution to this is well known. We apply the proposed technique on some benchmark deep learning datasets. We compare our results with other deep learning tools like stacked autoencoder and deep belief network; and state of the art supervised dictionary learning t...

  4. Quasi-greedy systems of integer translates

    DEFF Research Database (Denmark)

    Nielsen, Morten; Sikic, Hrvoje

    We consider quasi-greedy systems of integer translates in a finitely generated shift invariant subspace of L2(Rd), that is systems for which the thresholding approximation procedure is well behaved. We prove that every quasi-greedy system of integer translates is also a Riesz basis for its closed...... linear span. The result shows that there are no conditional quasi-greedy basis of integer translates in a finitely generated shift invariant space....

  5. Quasi-greedy systems of integer translates

    DEFF Research Database (Denmark)

    Nielsen, Morten; Sikic, Hrvoje

    2008-01-01

    We consider quasi-greedy systems of integer translates in a finitely generated shift-invariant subspace of L2(Rd), that is systems for which the thresholding approximation procedure is well behaved. We prove that every quasi-greedy system of integer translates is also a Riesz basis for its closed...... linear span. The result shows that there are no conditional quasi-greedy bases of integer translates in a finitely generated shift-invariant space....

  6. Info-Greedy Sequential Adaptive Compressed Sensing

    Science.gov (United States)

    Braun, Gabor; Pokutta, Sebastian; Xie, Yao

    2015-06-01

    We present an information-theoretic framework for sequential adaptive compressed sensing, Info-Greedy Sensing, where measurements are chosen to maximize the extracted information conditioned on the previous measurements. We show that the widely used bisection approach is Info-Greedy for a family of $k$-sparse signals by connecting compressed sensing and blackbox complexity of sequential query algorithms, and present Info-Greedy algorithms for Gaussian and Gaussian Mixture Model (GMM) signals, as well as ways to design sparse Info-Greedy measurements. Numerical examples demonstrate the good performance of the proposed algorithms using simulated and real data: Info-Greedy Sensing shows significant improvement over random projection for signals with sparse and low-rank covariance matrices, and adaptivity brings robustness when there is a mismatch between the assumed and the true distributions.

  7. On Stable Marriages and Greedy Matchings

    Energy Technology Data Exchange (ETDEWEB)

    Manne, Fredrik; Naim, Md; Lerring, Hakon; Halappanavar, Mahantesh

    2016-12-11

    Research on stable marriage problems has a long and mathematically rigorous history, while that of exploiting greedy matchings in combinatorial scientific computing is a younger and less developed research field. In this paper we consider the relationships between these two areas. In particular we show that several problems related to computing greedy matchings can be formulated as stable marriage problems and as a consequence several recently proposed algorithms for computing greedy matchings are in fact special cases of well known algorithms for the stable marriage problem. However, in terms of implementations and practical scalable solutions on modern hardware, the greedy matching community has made considerable progress. We show that due to the strong relationship between these two fields many of these results are also applicable for solving stable marriage problems.

  8. Greedy controllability of finite dimensional linear systems

    OpenAIRE

    Lazar, Martin; Zuazua, Enrique

    2016-01-01

    We analyse the problem of controllability for parameter-dependent linear finite-dimensional systems. The goal is to identify the most distinguished realisations of those parameters so to better describe or approximate the whole range of controls. We adapt recent results on greedy and weak greedy algorithms for parameter depending PDEs or, more generally, abstract equations in Banach spaces. Our results lead to optimal approximation procedures that, in particular, perform better than simply sa...

  9. An Accelerated Greedy Missing Point Estimation Procedure

    DEFF Research Database (Denmark)

    Zimmermann, Ralf; Willcox, Karen

    2016-01-01

    and is computationally intractable even for systems of small size. This has been addressed through greedy point selection algorithms, which minimize an error indicator by sequentially looping over all components. While doable, this is suboptimal and still costly. This paper introduces an approach to accelerate...

  10. Two-pass greedy regular expression parsing

    DEFF Research Database (Denmark)

    Grathwohl, Niels Bjørn Bugge; Henglein, Fritz; Nielsen, Lasse

    2013-01-01

    We present new algorithms for producing greedy parses for regular expressions (REs) in a semi-streaming fashion. Our lean-log algorithm executes in time O(mn) for REs of size m and input strings of size n and outputs a compact bit-coded parse tree representation. It improves on previous algorithms...... by: operating in only 2 passes; using only O(m) words of random-access memory (independent of n); requiring only kn bits of sequentially written and read log storage, where k

  11. Greedy algorithms withweights for construction of partial association rules

    KAUST Repository

    Moshkov, Mikhail

    2009-09-10

    This paper is devoted to the study of approximate algorithms for minimization of the total weight of attributes occurring in partial association rules. We consider mainly greedy algorithms with weights for construction of rules. The paper contains bounds on precision of these algorithms and bounds on the minimal weight of partial association rules based on an information obtained during the greedy algorithm run.

  12. Diffusive behavior of a greedy traveling salesman.

    Science.gov (United States)

    Lipowski, Adam; Lipowska, Dorota

    2011-06-01

    Using Monte Carlo simulations we examine the diffusive properties of the greedy algorithm in the d-dimensional traveling salesman problem. Our results show that for d=3 and 4 the average squared distance from the origin (r(2)) is proportional to the number of steps t. In the d=2 case such a scaling is modified with some logarithmic corrections, which might suggest that d=2 is the critical dimension of the problem. The distribution of lengths also shows marked differences between d=2 and d>2 versions. A simple strategy adopted by the salesman might resemble strategies chosen by some foraging and hunting animals, for which anomalous diffusive behavior has recently been reported and interpreted in terms of Lévy flights. Our results suggest that broad and Lévy-like distributions in such systems might appear due to dimension-dependent properties of a search space.

  13. Greedy algorithms for diffuse optical tomography reconstruction

    Science.gov (United States)

    Dileep, B. P. V.; Das, Tapan; Dutta, Pranab K.

    2018-03-01

    Diffuse optical tomography (DOT) is a noninvasive imaging modality that reconstructs the optical parameters of a highly scattering medium. However, the inverse problem of DOT is ill-posed and highly nonlinear due to the zig-zag propagation of photons that diffuses through the cross section of tissue. The conventional DOT imaging methods iteratively compute the solution of forward diffusion equation solver which makes the problem computationally expensive. Also, these methods fail when the geometry is complex. Recently, the theory of compressive sensing (CS) has received considerable attention because of its efficient use in biomedical imaging applications. The objective of this paper is to solve a given DOT inverse problem by using compressive sensing framework and various Greedy algorithms such as orthogonal matching pursuit (OMP), compressive sampling matching pursuit (CoSaMP), and stagewise orthogonal matching pursuit (StOMP), regularized orthogonal matching pursuit (ROMP) and simultaneous orthogonal matching pursuit (S-OMP) have been studied to reconstruct the change in the absorption parameter i.e, Δα from the boundary data. Also, the Greedy algorithms have been validated experimentally on a paraffin wax rectangular phantom through a well designed experimental set up. We also have studied the conventional DOT methods like least square method and truncated singular value decomposition (TSVD) for comparison. One of the main features of this work is the usage of less number of source-detector pairs, which can facilitate the use of DOT in routine applications of screening. The performance metrics such as mean square error (MSE), normalized mean square error (NMSE), structural similarity index (SSIM), and peak signal to noise ratio (PSNR) have been used to evaluate the performance of the algorithms mentioned in this paper. Extensive simulation results confirm that CS based DOT reconstruction outperforms the conventional DOT imaging methods in terms of

  14. Greedy bases in rank 2 quantum cluster algebras.

    Science.gov (United States)

    Lee, Kyungyong; Li, Li; Rupel, Dylan; Zelevinsky, Andrei

    2014-07-08

    We identify a quantum lift of the greedy basis for rank 2 coefficient-free cluster algebras. Our main result is that our construction does not depend on the choice of initial cluster, that it builds all cluster monomials, and that it produces bar-invariant elements. We also present several conjectures related to this quantum greedy basis and the triangular basis of Berenstein and Zelevinsky.

  15. Starvation dynamics of a greedy forager

    Science.gov (United States)

    Bhat, U.; Redner, S.; Bénichou, O.

    2017-07-01

    We investigate the dynamics of a greedy forager that moves by random walking in an environment where each site initially contains one unit of food. Upon encountering a food-containing site, the forager eats all the food there and can subsequently hop an additional S steps without food before starving to death. Upon encountering an empty site, the forager goes hungry and comes one time unit closer to starvation. We investigate the new feature of forager greed; if the forager has a choice between hopping to an empty site or to a food-containing site in its nearest neighborhood, it hops preferentially towards food. If the neighboring sites all contain food or are all empty, the forager hops equiprobably to one of these neighbors. Paradoxically, the lifetime of the forager can depend non-monotonically on greed, and the sense of the non-monotonicity is opposite in one and two dimensions. Even more unexpectedly, the forager lifetime in one dimension is substantially enhanced when the greed is negative; here the forager tends to avoid food in its local neighborhood. We also determine the average amount of food consumed at the instant when the forager starves. We present analytic, heuristic, and numerical results to elucidate these intriguing phenomena.

  16. Comparison of greedy algorithms for α-decision tree construction

    KAUST Repository

    Alkhalid, Abdulaziz

    2011-01-01

    A comparison among different heuristics that are used by greedy algorithms which constructs approximate decision trees (α-decision trees) is presented. The comparison is conducted using decision tables based on 24 data sets from UCI Machine Learning Repository [2]. Complexity of decision trees is estimated relative to several cost functions: depth, average depth, number of nodes, number of nonterminal nodes, and number of terminal nodes. Costs of trees built by greedy algorithms are compared with minimum costs calculated by an algorithm based on dynamic programming. The results of experiments assign to each cost function a set of potentially good heuristics that minimize it. © 2011 Springer-Verlag.

  17. Cyclic Pure Greedy Algorithms for Recovering Compressively Sampled Sparse Signals

    DEFF Research Database (Denmark)

    Sturm, Bob L.; Christensen, Mads Græsbøll; Gribonval, Remi

    2011-01-01

    The pure greedy algorithms matching pursuit (MP) and complementary MP (CompMP) are extremely computationally simple, but can perform poorly in solving the linear inverse problems posed by the recovery of compressively sampled sparse signals. We show that by applying a cyclic minimization principle...

  18. Sensitivity analysis of a greedy heuristic for knapsack problems

    NARCIS (Netherlands)

    Ghosh, D; Chakravarti, N; Sierksma, G

    2006-01-01

    In this paper, we carry out parametric analysis as well as a tolerance limit based sensitivity analysis of a greedy heuristic for two knapsack problems-the 0-1 knapsack problem and the subset sum problem. We carry out the parametric analysis based on all problem parameters. In the tolerance limit

  19. Greedy vs. L1 convex optimization in sparse coding

    DEFF Research Database (Denmark)

    Ren, Huamin; Pan, Hong; Olsen, Søren Ingvor

    2015-01-01

    , such as face and action recognition, a comparative study of codes in abnormal event detection is less studied and hence no conclusion is gained on the effect of codes in detecting abnormalities. We constrict our comparison in two types of the above L0-norm solutions: greedy algorithms and convex L1-norm...

  20. Greedy vs. L1 Convex Optimization in Sparse Coding

    DEFF Research Database (Denmark)

    Ren, Huamin; Pan, Hong; Olsen, Søren Ingvor

    and action recognition, a comparative study of codes in abnormal event detection is less studied and hence no conclusion is gained on the effect of codes in detecting abnormalities. We constrict our comparison in two types of the above L0-norm solutions: greedy algorithms and convex L1-norm solutions...

  1. Greedy Algorithms for Reduced Bases in Banach Spaces

    KAUST Repository

    DeVore, Ronald

    2013-02-26

    Given a Banach space X and one of its compact sets F, we consider the problem of finding a good n-dimensional space X n⊂X which can be used to approximate the elements of F. The best possible error we can achieve for such an approximation is given by the Kolmogorov width dn(F)X. However, finding the space which gives this performance is typically numerically intractable. Recently, a new greedy strategy for obtaining good spaces was given in the context of the reduced basis method for solving a parametric family of PDEs. The performance of this greedy algorithm was initially analyzed in Buffa et al. (Modél. Math. Anal. Numér. 46:595-603, 2012) in the case X=H is a Hilbert space. The results of Buffa et al. (Modél. Math. Anal. Numér. 46:595-603, 2012) were significantly improved upon in Binev et al. (SIAM J. Math. Anal. 43:1457-1472, 2011). The purpose of the present paper is to give a new analysis of the performance of such greedy algorithms. Our analysis not only gives improved results for the Hilbert space case but can also be applied to the same greedy procedure in general Banach spaces. © 2013 Springer Science+Business Media New York.

  2. Application of a greedy algorithm to military aircraft fleet retirements

    NARCIS (Netherlands)

    Newcamp, J.M.; Verhagen, W.J.C.; Udluft, H.; Curran, Ricky

    2017-01-01

    This article presents a retirement analysis model for aircraft fleets. By employing a greedy algorithm, the presented solution is capable of identifying individually weak assets in a fleet of aircraft with inhomogeneous historical utilization. The model forecasts future retirement scenarios

  3. Optimization by GRASP greedy randomized adaptive search procedures

    CERN Document Server

    Resende, Mauricio G C

    2016-01-01

    This is the first book to cover GRASP (Greedy Randomized Adaptive Search Procedures), a metaheuristic that has enjoyed wide success in practice with a broad range of applications to real-world combinatorial optimization problems. The state-of-the-art coverage and carefully crafted pedagogical style lends this book highly accessible as an introductory text not only to GRASP, but also to combinatorial optimization, greedy algorithms, local search, and path-relinking, as well as to heuristics and metaheuristics, in general. The focus is on algorithmic and computational aspects of applied optimization with GRASP with emphasis given to the end-user, providing sufficient information on the broad spectrum of advances in applied optimization with GRASP. For the more advanced reader, chapters on hybridization with path-relinking and parallel and continuous GRASP present these topics in a clear and concise fashion. Additionally, the book offers a very complete annotated bibliography of GRASP and combinatorial optimizat...

  4. Penerapan Algoritma Greedy Pada Mesin Penjual Otomatis (Vending Machine

    Directory of Open Access Journals (Sweden)

    Alamsyah -

    2014-12-01

    Full Text Available Dalam memasarkan produk minuman dan makanan ringan, Indonesia masih banyak menggunakan tenaga manusia untuk menyalurkan produk tersebut dari pabrik sampai ke konsumen akhir. Jika setiap toko membeli produk dalam jumlah banyak, maka didapatkan keuntungan yang besar dalam penjualan produk tersebut. Hal ini menyebabkan harga penjualan produk yang sampai ke konsumen akhir lebih mahal daripada harga asli yang diberikan oleh pabrik. Dengan permasalahan tersebut, penulis mencoba membuat aplikasi mesin penjual otomatis (vending machine. Pada umumnya vending machine tidak memberikan uang kembalian. Disini penulis mencoba membuat vending machine dengan menerapkan algoritma Greedy agar dapat memberikan uang kembalian sehingga harga penjualan produk sesuai dengan harga asli pabrik. Algoritma Greedy diterapkan untuk menentukan pecahan berapa saja yang muncul dalam proses pengembalian uang dengan meminimalkan jumlah uang logamnya. Penulis menggunakan aplikasi Visual Basic untuk menerapkan program vending machine. 

  5. MotifMiner: A Table Driven Greedy Algorithm for DNA Motif Mining

    Science.gov (United States)

    Seeja, K. R.; Alam, M. A.; Jain, S. K.

    DNA motif discovery is a much explored problem in functional genomics. This paper describes a table driven greedy algorithm for discovering regulatory motifs in the promoter sequences of co-expressed genes. The proposed algorithm searches both DNA strands for the common patterns or motifs. The inputs to the algorithm are set of promoter sequences, the motif length and minimum Information Content. The algorithm generates subsequences of given length from the shortest input promoter sequence. It stores these subsequences and their reverse complements in a table. Then it searches the remaining sequences for good matches of these subsequences. The Information Content score is used to measure the goodness of the motifs. The algorithm has been tested with synthetic data and real data. The results are found promising. The algorithm could discover meaningful motifs from the muscle specific regulatory sequences.

  6. A Greedy Algorithm for a Special Class of Geometric Set Covering Problems

    DEFF Research Database (Denmark)

    Stolpe, Mathias; Bechmann, Andreas

    of a geometric set covering problem we propose a greedy type algorithm. We also propose a linear mixed 0 – 1 formulation of the problem. For each problem instance this formulation is solved by a commercial branch-andcut solver and the results are used to validate the quality of the solution from the greedy...... algorithm. The greedy algorithm finds the minimum number of squares for all but one problem instances from a set of 26 representative real-world examples....

  7. Greedy SINR Maximization in Collaborative Multibase Wireless Systems

    Directory of Open Access Journals (Sweden)

    Popescu Otilia

    2004-01-01

    Full Text Available We present a codeword adaptation algorithm for collaborative multibase wireless systems. The system is modeled with multiple inputs and multiple outputs (MIMO in which information is transmitted using multicode CDMA, and codewords are adapted based on greedy maximization of the signal-to-interference-plus-noise ratio. The procedure monotonically increases the sum capacity and, when repeated iteratively for all codewords in the system, converges to a fixed point. Fixed-point properties and a connection with sum capacity maximization, along with a discussion of simulations that corroborate the basic analytic results, are included in the paper.

  8. How to make a greedy heuristic for the asymmetric traveling salesman problem competitive

    NARCIS (Netherlands)

    Goldengorin, B.; Jäger, G.

    2005-01-01

    It is widely confirmed by many computational experiments that a greedy type heuristics for the Traveling Salesman Problem (TSP) produces rather poor solutions except for the Euclidean TSP. The selection of arcs to be included by a greedy heuristic is usually done on the base of cost values. We

  9. Deep greedy learning under thermal variability in full diurnal cycles

    Science.gov (United States)

    Rauss, Patrick; Rosario, Dalton

    2017-08-01

    We study the generalization and scalability behavior of a deep belief network (DBN) applied to a challenging long-wave infrared hyperspectral dataset, consisting of radiance from several manmade and natural materials within a fixed site located 500 m from an observation tower. The collections cover multiple full diurnal cycles and include different atmospheric conditions. Using complementary priors, a DBN uses a greedy algorithm that can learn deep, directed belief networks one layer at a time and has two layers form to provide undirected associative memory. The greedy algorithm initializes a slower learning procedure, which fine-tunes the weights, using a contrastive version of the wake-sleep algorithm. After fine-tuning, a network with three hidden layers forms a very good generative model of the joint distribution of spectral data and their labels, despite significant data variability between and within classes due to environmental and temperature variation occurring within and between full diurnal cycles. We argue, however, that more questions than answers are raised regarding the generalization capacity of these deep nets through experiments aimed at investigating their training and augmented learning behavior.

  10. Search Greedy for radial fuel optimization; Busqueda Greddy para optimizacion radial de combustible

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz, J. J.; Castillo, J. A. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico); Pelta, D. A. [Universidad de Granada, ETS Ingenieria Informatica y Telecomunicaciones, C/Daniel Saucedo Aranda s/n, 18071 Granada (Spain)]. e-mail: jjortiz@nuclear.inin.mx

    2008-07-01

    In this work a search algorithm Greedy is presented for the optimization of fuel cells in reactors BWR. As first phase a study was made of sensibility of the Factor of Pick of Local Power (FPPL) of the cell, in function of the exchange of the content of two fuel rods. His way it could settle down that then the rods to exchange do not contain gadolinium, small changes take place in the value of the FPPL of the cell. This knowledge was applied later in the search Greedy to optimize fuel cell. Exchanges of rods with gadolinium takes as a mechanism of global search and exchanges of rods without gadolinium takes as a method of local search. It worked with a cell of 10x10 rods and 2 circular water channels in center of the same one. From an inventory of enrichments of uranium and concentrations of given gadolinium and one distribution of well-known enrichments; the techniques finds good solutions that the FPPL minimizes, maintaining the factor of multiplication of neutrons in a range appropriate of values. In the low part of the assembly of a lot of recharge of a cycle of 18 months the cells were placed. The values of FPPL of the opposing cells are similar or smaller to those of the original cell and with behaviors in the nucleus also comparable to those obtained with the original cell. The evaluation of the cells was made with the code of transport CASMO-IV and the evaluation of the nucleus was made by means of the one simulator of the nucleus SIMULATE-3. (Author)

  11. WFIRST: Exoplanet Target Selection and Scheduling with Greedy Optimization

    Science.gov (United States)

    Keithly, Dean; Garrett, Daniel; Delacroix, Christian; Savransky, Dmitry

    2018-01-01

    We present target selection and scheduling algorithms for missions with direct imaging of exoplanets, and the Wide Field Infrared Survey Telescope (WFIRST) in particular, which will be equipped with a coronagraphic instrument (CGI). Optimal scheduling of CGI targets can maximize the expected value of directly imaged exoplanets (completeness). Using target completeness as a reward metric and integration time plus overhead time as a cost metric, we can maximize the sum completeness for a mission with a fixed duration. We optimize over these metrics to create a list of target stars using a greedy optimization algorithm based off altruistic yield optimization (AYO) under ideal conditions. We simulate full missions using EXOSIMS by observing targets in this list for their predetermined integration times. In this poster, we report the theoretical maximum sum completeness, mean number of detected exoplanets from Monte Carlo simulations, and the ideal expected value of the simulated missions.

  12. Efficient greedy algorithms for economic manpower shift planning

    Science.gov (United States)

    Nearchou, A. C.; Giannikos, I. C.; Lagodimos, A. G.

    2015-01-01

    Consideration is given to the economic manpower shift planning (EMSP) problem, an NP-hard capacity planning problem appearing in various industrial settings including the packing stage of production in process industries and maintenance operations. EMSP aims to determine the manpower needed in each available workday shift of a given planning horizon so as to complete a set of independent jobs at minimum cost. Three greedy heuristics are presented for the EMSP solution. These practically constitute adaptations of an existing algorithm for a simplified version of EMSP which had shown excellent performance in terms of solution quality and speed. Experimentation shows that the new algorithms perform very well in comparison to the results obtained by both the CPLEX optimizer and an existing metaheuristic. Statistical analysis is deployed to rank the algorithms in terms of their solution quality and to identify the effects that critical planning factors may have on their relative efficiency.

  13. A greedy double swap heuristic for nurse scheduling

    Directory of Open Access Journals (Sweden)

    Murphy Choy

    2012-10-01

    Full Text Available One of the key challenges of nurse scheduling problem (NSP is the number of constraints placed on preparing the timetable, both from the regulatory requirements as well as the patients’ demand for the appropriate nursing care specialists. In addition, the preferences of the nursing staffs related to their work schedules add another dimension of complexity. Most solutions proposed for solving nurse scheduling involve the use of mathematical programming and generally considers only the hard constraints. However, the psychological needs of the nurses are ignored and this resulted in subsequent interventions by the nursing staffs to remedy any deficiency and often results in last minute changes to the schedule. In this paper, we present a staff preference optimization framework solved with a greedy double swap heuristic. The heuristic yields good performance in speed at solving the problem. The heuristic is simple and we will demonstrate its performance by implementing it on open source spreadsheet software.

  14. Comparison of Greedy Algorithms for Decision Tree Optimization

    KAUST Repository

    Alkhalid, Abdulaziz

    2013-01-01

    This chapter is devoted to the study of 16 types of greedy algorithms for decision tree construction. The dynamic programming approach is used for construction of optimal decision trees. Optimization is performed relative to minimal values of average depth, depth, number of nodes, number of terminal nodes, and number of nonterminal nodes of decision trees. We compare average depth, depth, number of nodes, number of terminal nodes and number of nonterminal nodes of constructed trees with minimum values of the considered parameters obtained based on a dynamic programming approach. We report experiments performed on data sets from UCI ML Repository and randomly generated binary decision tables. As a result, for depth, average depth, and number of nodes we propose a number of good heuristics. © Springer-Verlag Berlin Heidelberg 2013.

  15. Formal Modeling of Greedy Nodes in 802.15.4 WSN

    Directory of Open Access Journals (Sweden)

    Youcef Hammal

    2015-06-01

    Full Text Available This paper deals with formal specification of the non-slotted CSMA/CA protocol in wireless sensor networks(WSN whose some nodes own a greedy behavior. This protocol requires sensor nodes to wait some time before initiating a transmission, whereas greedy nodes may try to reduce their waiting duration, which may penalize other nodes. To analyze their impact on WSN mode in operation, we use timed automata of the model-checker UPPAAL to capture the abstract behavior of communication medium, sane, and greedy nodes in WSN. This enables the use of analysis tools to check whether these models satisfy intended properties.

  16. Sistem Pencarian Hotel Berdasarkan Rute Perjalanan Terpendek Dengan Mempertimbangkan Daya Tarik Wisata Menggunakan Algoritma Greedy

    Directory of Open Access Journals (Sweden)

    Audrey Maximillian Herli

    2015-04-01

    Full Text Available Hotel search was an important thingfor travelers in their traveling journey. Travelers would consider criteria such as class, price and review of the hotel.Beside those things, distance between Hotel and tourist attractionswasalsoimportant factor to be considered. In this research, system was constructed to perform a hotels search by shortest travelling route using Greedy Algorithm. This research was conducted through four stages, the first stage wasdata and information collectingof tourist attraction and hotel. Second stagewasdata analysis with greedy algorithm in purpose to classify the data and implementing greedy algorithm with manual calculation to the problem research. The third stage was the development of the system, and the last stage wasevaluating the system with the experts who are experienced in the field of tourism and the prospective user of this application. Results from this study was the system can provide recommendations and sequence the shortest journey between the hotel and tourist attraction based on the greedy algorithm.

  17. Deterministic Greedy Routing with Guaranteed Delivery in 3D Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Su Xia

    2014-05-01

    Full Text Available With both computational complexity and storage space bounded by a small constant, greedy routing is recognized as an appealing approach to support scalable routing in wireless sensor networks. However, significant challenges have been encountered in extending greedy routing from 2D to 3D space. In this research, we develop decentralized solutions to achieve greedy routing in 3D sensor networks. Our proposed approach is based on a unit tetrahedron cell (UTC mesh structure. We propose a distributed algorithm to realize volumetric harmonic mapping (VHM of the UTC mesh under spherical boundary condition. It is a one-to-one map that yields virtual coordinates for each node in the network without or with one internal hole. Since a boundary has been mapped to a sphere, node-based greedy routing is always successful thereon. At the same time, we exploit the UTC mesh to develop a face-based greedy routing algorithm and prove its success at internal nodes. To deliver a data packet to its destination, face-based and node-based greedy routing algorithms are employed alternately at internal and boundary UTCs, respectively. For networks with multiple internal holes, a segmentation and tunnel-based routing strategy is proposed on top of VHM to support global end-to-end routing. As far as we know, this is the first work that realizes truly deterministic routing with constant-bounded storage and computation in general 3D wireless sensor networks.

  18. Adaptive Greedy Dictionary Selection for Web Media Summarization.

    Science.gov (United States)

    Cong, Yang; Liu, Ji; Sun, Gan; You, Quanzeng; Li, Yuncheng; Luo, Jiebo

    2017-01-01

    Initializing an effective dictionary is an indispensable step for sparse representation. In this paper, we focus on the dictionary selection problem with the objective to select a compact subset of basis from original training data instead of learning a new dictionary matrix as dictionary learning models do. We first design a new dictionary selection model via l2,0 norm. For model optimization, we propose two methods: one is the standard forward-backward greedy algorithm, which is not suitable for large-scale problems; the other is based on the gradient cues at each forward iteration and speeds up the process dramatically. In comparison with the state-of-the-art dictionary selection models, our model is not only more effective and efficient, but also can control the sparsity. To evaluate the performance of our new model, we select two practical web media summarization problems: 1) we build a new data set consisting of around 500 users, 3000 albums, and 1 million images, and achieve effective assisted albuming based on our model and 2) by formulating the video summarization problem as a dictionary selection issue, we employ our model to extract keyframes from a video sequence in a more flexible way. Generally, our model outperforms the state-of-the-art methods in both these two tasks.

  19. Ship Block Transportation Scheduling Problem Based on Greedy Algorithm

    Directory of Open Access Journals (Sweden)

    Chong Wang

    2016-05-01

    Full Text Available Ship block transportation problems are crucial issues to address in reducing the construction cost and improving the productivity of shipyards. Shipyards aim to maximize the workload balance of transporters with time constraint such that all blocks should be transported during the planning horizon. This process leads to three types of penalty time: empty transporter travel time, delay time, and tardy time. This study aims to minimize the sum of the penalty time. First, this study presents the problem of ship block transportation with the generalization of the block transportation restriction on the multi-type transporter. Second, the problem is transformed into the classical traveling salesman problem and assignment problem through a reasonable model simplification and by adding a virtual node to the proposed directed graph. Then, a heuristic algorithm based on greedy algorithm is proposed to assign blocks to available transporters and sequencing blocks for each transporter simultaneously. Finally, the numerical experiment method is used to validate the model, and its result shows that the proposed algorithm is effective in realizing the efficient use of the transporters in shipyards. Numerical simulation results demonstrate the promising application of the proposed method to efficiently improve the utilization of transporters and to reduce the cost of ship block logistics for shipyards.

  20. BILGO: Bilateral greedy optimization for large scale semidefinite programming

    KAUST Repository

    Hao, Zhifeng

    2013-10-03

    Many machine learning tasks (e.g. metric and manifold learning problems) can be formulated as convex semidefinite programs. To enable the application of these tasks on a large-scale, scalability and computational efficiency are considered as desirable properties for a practical semidefinite programming algorithm. In this paper, we theoretically analyze a new bilateral greedy optimization (denoted BILGO) strategy in solving general semidefinite programs on large-scale datasets. As compared to existing methods, BILGO employs a bilateral search strategy during each optimization iteration. In such an iteration, the current semidefinite matrix solution is updated as a bilateral linear combination of the previous solution and a suitable rank-1 matrix, which can be efficiently computed from the leading eigenvector of the descent direction at this iteration. By optimizing for the coefficients of the bilateral combination, BILGO reduces the cost function in every iteration until the KKT conditions are fully satisfied, thus, it tends to converge to a global optimum. In fact, we prove that BILGO converges to the global optimal solution at a rate of O(1/k), where k is the iteration counter. The algorithm thus successfully combines the efficiency of conventional rank-1 update algorithms and the effectiveness of gradient descent. Moreover, BILGO can be easily extended to handle low rank constraints. To validate the effectiveness and efficiency of BILGO, we apply it to two important machine learning tasks, namely Mahalanobis metric learning and maximum variance unfolding. Extensive experimental results clearly demonstrate that BILGO can solve large-scale semidefinite programs efficiently.

  1. Greedy Algorithms for Sensor Location in Sewer Systems

    Directory of Open Access Journals (Sweden)

    Bijit K. Banik

    2017-11-01

    Full Text Available Wastewater quality monitoring is receiving growing interest with the necessity of developing new strategies for controlling accidental and intentional illicit intrusions. In designing a monitoring network, a crucial aspect is represented by the sensors’ location. In this study, a methodology for the optimal placement of wastewater monitoring sensors in sewer systems is presented. The sensor location is formulated as an optimization problem solved using greedy algorithms (GRs. The Storm Water Management Model (SWMM was used to perform hydraulic and water-quality simulations. Six different procedures characterized by different fitness functions are presented and compared. The performances of the procedures are tested on a real sewer system, demonstrating the suitability of GRs for the sensor-placement problem. The results show a robustness of the methodology with respect to the detection concentration parameter, and they suggest that procedures with multiple objectives into a single fitness function give better results. A further comparison is performed using previously developed multi-objective procedures with multiple fitness functions solved using a genetic algorithm (GA, indicating better performances of the GR. The existing monitoring network, realized without the application of any sensor design, is always suboptimal.

  2. Heuristic rules analysis on the fuel cells design using greedy search;Analisis de reglas heuristicas en el diseno de celdas de combustible usando busqueda greedy

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz, J. J.; Castillo, J. A.; Montes, J. L.; Hernandez, J. L., E-mail: juanjose.ortiz@inin.gob.m [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2009-10-15

    This work approaches the study of one of the heuristic rules of fuel cells design for boiling water nuclear reactors. This rule requires that the minor uranium enrichment is placed in the corners of the fuel cell. Also the search greedy is applied for the fuel cells design where explicitly does not take in count this rule, allowing the possibility to place any uranium enrichment with the condition that it does not contain gadolinium. Results are shown in the quality of the obtained cell by search greedy when it considers the rule and when not. The cell quality is measured with the value of the power pick factor obtained, as well as of the neutrons multiplication factor in an infinite medium. Cells were analyzed with 1 and 2 gadolinium concentrations low operation conditions at 120% of the nominal power of the reactors of the nuclear power plant of Laguna Verde. The results show that not to consider the rule in cells with a single gadolinium concentration, it has as repercussion that the greedy search has a minor performance. On the other hand with cells of two gadolinium concentrations, the performance of the greedy search was better. (Author)

  3. Biased and greedy random walks on two-dimensional lattices with quenched randomness: The greedy ant within a disordered environment

    Science.gov (United States)

    Mitran, T. L.; Melchert, O.; Hartmann, A. K.

    2013-12-01

    The main characteristics of biased greedy random walks (BGRWs) on two-dimensional lattices with real-valued quenched disorder on the lattice edges are studied. Here the disorder allows for negative edge weights. In previous studies, considering the negative-weight percolation (NWP) problem, this was shown to change the universality class of the existing, static percolation transition. In the presented study, four different types of BGRWs and an algorithm based on the ant colony optimization heuristic were considered. Regarding the BGRWs, the precise configurations of the lattice walks constructed during the numerical simulations were influenced by two parameters: a disorder parameter ρ that controls the amount of negative edge weights on the lattice and a bias strength B that governs the drift of the walkers along a certain lattice direction. The random walks are “greedy” in the sense that the local optimal choice of the walker is to preferentially traverse edges with a negative weight (associated with a net gain of “energy” for the walker). Here, the pivotal observable is the probability that, after termination, a lattice walk exhibits a total negative weight, which is here considered as percolating. The behavior of this observable as function of ρ for different bias strengths B is put under scrutiny. Upon tuning ρ, the probability to find such a feasible lattice walk increases from zero to 1. This is the key feature of the percolation transition in the NWP model. Here, we address the question how well the transition point ρc, resulting from numerically exact and “static” simulations in terms of the NWP model, can be resolved using simple dynamic algorithms that have only local information available, one of the basic questions in the physics of glassy systems.

  4. Greedy and metaheuristics for the offline scheduling problem in grid computing

    DEFF Research Database (Denmark)

    Gamst, Mette

    metaheuristics for solving the offline scheduling problem are introduced. Computationally evaluating the heuristics shows that all heuristics find useful solutions with a gap of 20\\% between upper and lower bounds. The metaheuristics give better results than the greedy heuristics, but also have larger time usage...

  5. TRIGONOMETRIC QUASI-GREEDY BASES FOR L-p (T; w)

    DEFF Research Database (Denmark)

    Nielsen, Morten

    2009-01-01

    We give a complete characterization of 2π-periodic weights w for which the usual trigonometric system forms a quasi-greedy basis for Lp(T;w), i.e. bases for which simple thresholding approximants converge in norm. The characterization implies that this can happen only for p=2 and whenever the sys...

  6. Evaluation of a Didactic Method for the Active Learning of Greedy Algorithms

    Science.gov (United States)

    Esteban-Sánchez, Natalia; Pizarro, Celeste; Velázquez-Iturbide, J. Ángel

    2014-01-01

    An evaluation of the educational effectiveness of a didactic method for the active learning of greedy algorithms is presented. The didactic method sets students structured-inquiry challenges to be addressed with a specific experimental method, supported by the interactive system GreedEx. This didactic method has been refined over several years of…

  7. Evaluation of a Didactic Method for the Active Learning of Greedy Algorithms

    Science.gov (United States)

    Esteban-Sánchez, Natalia; Pizarro, Celeste; Velázquez-Iturbide, J. Ángel

    An evaluation of the educational effectiveness of a didactic method for the active learning of greedy algorithms is presented. The didactic method sets students structured-inquiry challenges to be addressed with a specific experimental method, supported by the interactive system GreedEx. This didactic method has been refined over several years of…

  8. GreedEx: A Visualization Tool for Experimentation and Discovery Learning of Greedy Algorithms

    Science.gov (United States)

    Velazquez-Iturbide, J. A.; Debdi, O.; Esteban-Sanchez, N.; Pizarro, C.

    2013-01-01

    Several years ago we presented an experimental, discovery-learning approach to the active learning of greedy algorithms. This paper presents GreedEx, a visualization tool developed to support this didactic method. The paper states the design goals of GreedEx, makes explicit the major design decisions adopted, and describes its main characteristics…

  9. PubMedAlertMe - Standalone Windows-based PubMed SDI Software Application

    Science.gov (United States)

    Ma’ayan, Avi

    2008-01-01

    PubMedAlertMe is a Windows-based software system for automatically receiving e-mail alert messages about recent publications listed on PubMed. The e-mail messages contain links to newly available abstracts listed on PubMed describing publications that were selectively returned from a specified list of queries. Links are also provided to directly export citations to EndNote, and links are provided to directly forward articles to colleagues. The program is standalone. Thus, it does not require a remote mail server or user registration. PubMedAlertMe is free software, and can be downloaded from: http://amp.pharm.mssm.edu/PubMedAlertMe/PubMedAlertMe_setup.zip PMID:18402930

  10. An Evaluation of Windows-Based Computer Forensics Application Software Running on a Macintosh

    Directory of Open Access Journals (Sweden)

    Gregory H. Carlton

    2008-09-01

    Full Text Available The two most common computer forensics applications perform exclusively on Microsoft Windows Operating Systems, yet contemporary computer forensics examinations frequently encounter one or more of the three most common operating system environments, namely Windows, OS-X, or some form of UNIX or Linux. Additionally, government and private computer forensics laboratories frequently encounter budget constraints that limit their access to computer hardware. Currently, Macintosh computer systems are marketed with the ability to accommodate these three common operating system environments, including Windows XP in native and virtual environments. We performed a series of experiments to measure the functionality and performance of the two most commonly used Windows-based computer forensics applications on a Macintosh running Windows XP in native mode and in two virtual environments relative to a similarly configured Dell personal computer. The research results are directly beneficial to practitioners, and the process illustrates affective pedagogy whereby students were engaged in applied research.

  11. Content

    DEFF Research Database (Denmark)

    Keiding, Tina Bering

    Aim, content and methods are fundamental categories of both theoretical and practical general didactics. A quick glance in recent pedagogical literature on higher education, however, reveals a strong preoccupation with methods, i.e. how teaching should be organized socially (Biggs & Tang, 2007...... a theoretical approach, which takes complexity as fundamental premise for modern society (Luhmann, 1985, 2002). In educational situations conditionally valuable content generally will exceed what can actually be taught within the frames of an education. In pedagogy this situation is often referred...... to as ‘abundance of material’, and in many cases it is not obvious, how the line between actually chosen and conditionally relevant content can be draw. Difficulties in drawing the line between actual educational content and conditionally relevant content can be handled in different way. One way, quite efficient...

  12. 'Misclassification error' greedy heuristic to construct decision trees for inconsistent decision tables

    KAUST Repository

    Azad, Mohammad

    2014-01-01

    A greedy algorithm has been presented in this paper to construct decision trees for three different approaches (many-valued decision, most common decision, and generalized decision) in order to handle the inconsistency of multiple decisions in a decision table. In this algorithm, a greedy heuristic ‘misclassification error’ is used which performs faster, and for some cost function, results are better than ‘number of boundary subtables’ heuristic in literature. Therefore, it can be used in the case of larger data sets and does not require huge amount of memory. Experimental results of depth, average depth and number of nodes of decision trees constructed by this algorithm are compared in the framework of each of the three approaches.

  13. A Statistical Model for Uplink Intercell Interference with Power Adaptation and Greedy Scheduling

    KAUST Repository

    Tabassum, Hina

    2012-10-03

    This paper deals with the statistical modeling of uplink inter-cell interference (ICI) considering greedy scheduling with power adaptation based on channel conditions. The derived model is implicitly generalized for any kind of shadowing and fading environments. More precisely, we develop a generic model for the distribution of ICI based on the locations of the allocated users and their transmit powers. The derived model is utilized to evaluate important network performance metrics such as ergodic capacity, average fairness and average power preservation numerically. Monte-Carlo simulation details are included to support the analysis and show the accuracy of the derived expressions. In parallel to the literature, we show that greedy scheduling with power adaptation reduces the ICI, average power consumption of users, and enhances the average fairness among users, compared to the case without power adaptation. © 2012 IEEE.

  14. Greedy heuristic algorithm for solving series of eee components classification problems*

    Science.gov (United States)

    Kazakovtsev, A. L.; Antamoshkin, A. N.; Fedosov, V. V.

    2016-04-01

    Algorithms based on using the agglomerative greedy heuristics demonstrate precise and stable results for clustering problems based on k- means and p-median models. Such algorithms are successfully implemented in the processes of production of specialized EEE components for using in space systems which include testing each EEE device and detection of homogeneous production batches of the EEE components based on results of the tests using p-median models. In this paper, authors propose a new version of the genetic algorithm with the greedy agglomerative heuristic which allows solving series of problems. Such algorithm is useful for solving the k-means and p-median clustering problems when the number of clusters is unknown. Computational experiments on real data show that the preciseness of the result decreases insignificantly in comparison with the initial genetic algorithm for solving a single problem.

  15. A Greedy Approach for Placement of Subsurface Aquifer Wells in an Ensemble Filtering Framework

    KAUST Repository

    El Gharamti, Mohamad

    2015-11-26

    Optimizing wells placement may help in better understanding subsurface solute transport and detecting contaminant plumes. In this work, we use the ensemble Kalman filter (EnKF) as a data assimilation tool and propose a greedy observational design algorithm to optimally select aquifer wells locations for updating the prior contaminant ensemble. The algorithm is greedy in the sense that it operates sequentially, without taking into account expected future gains. The selection criteria is based on maximizing the information gain that the EnKF carries during the update of the prior uncertainties. We test the efficiency of this algorithm in a synthetic aquifer system where a contaminant plume is set to migrate over a 30 years period across a heterogenous domain.

  16. Greedy heuristics for minimization of number of terminal nodes in decision trees

    KAUST Repository

    Hussain, Shahid

    2014-10-01

    This paper describes, in detail, several greedy heuristics for construction of decision trees. We study the number of terminal nodes of decision trees, which is closely related with the cardinality of the set of rules corresponding to the tree. We compare these heuristics empirically for two different types of datasets (datasets acquired from UCI ML Repository and randomly generated data) as well as compare with the optimal results obtained using dynamic programming method.

  17. Greedy algorithms for construction of approximate tests for decision tables with many-valued decisions

    KAUST Repository

    Azad, Mohammad

    2012-12-14

    The paper is devoted to the study of a greedy algorithm for construction of approximate tests (super-reducts) This algorithm is applicable to decision tables with many-valued decisions where each row is labeled with a set of decisions For a given row, we should find a decision from the set attached to this row We consider bounds on the precision of this algorithm relative to the cardinality of tests.

  18. Efficient and accurate Greedy Search Methods for mining functional modules in protein interaction networks.

    Science.gov (United States)

    He, Jieyue; Li, Chaojun; Ye, Baoliu; Zhong, Wei

    2012-06-25

    Most computational algorithms mainly focus on detecting highly connected subgraphs in PPI networks as protein complexes but ignore their inherent organization. Furthermore, many of these algorithms are computationally expensive. However, recent analysis indicates that experimentally detected protein complexes generally contain Core/attachment structures. In this paper, a Greedy Search Method based on Core-Attachment structure (GSM-CA) is proposed. The GSM-CA method detects densely connected regions in large protein-protein interaction networks based on the edge weight and two criteria for determining core nodes and attachment nodes. The GSM-CA method improves the prediction accuracy compared to other similar module detection approaches, however it is computationally expensive. Many module detection approaches are based on the traditional hierarchical methods, which is also computationally inefficient because the hierarchical tree structure produced by these approaches cannot provide adequate information to identify whether a network belongs to a module structure or not. In order to speed up the computational process, the Greedy Search Method based on Fast Clustering (GSM-FC) is proposed in this work. The edge weight based GSM-FC method uses a greedy procedure to traverse all edges just once to separate the network into the suitable set of modules. The proposed methods are applied to the protein interaction network of S. cerevisiae. Experimental results indicate that many significant functional modules are detected, most of which match the known complexes. Results also demonstrate that the GSM-FC algorithm is faster and more accurate as compared to other competing algorithms. Based on the new edge weight definition, the proposed algorithm takes advantages of the greedy search procedure to separate the network into the suitable set of modules. Experimental analysis shows that the identified modules are statistically significant. The algorithm can reduce the

  19. Optimization and Operation Scheduling for a Steel Plate yard Based on Greedy Algorithm

    OpenAIRE

    Zhiying Zhang; Peng Wang; Weize Wang

    2013-01-01

    The inbound and outbound operation of plate yards in shipyards lacks effective scheduling with high operation costs. Based on the analysis of steel-in and steel-out operation process, an optimization model aiming to minimize the operation cost was established. The model was formulated as a multi-level combinatorial optimization model, which is finding proper storage locations during the steel-in stage to minimize the cost during the steel-out stage. Furthermore, greedy algorithm was implement...

  20. Detection and Estimation of Arrivals in Room Impulse Responses by Greedy Sparse Approximation

    DEFF Research Database (Denmark)

    Sturm, Bob L.; Defrance, Guillaume

    2010-01-01

    We investigate the use of greedy sparse approximation for facilitating the time-domain analysis of room impulse responses (RIRs), specifically locating the times and amplitudes of arrivals to not long after the upper bound of the ``mixing time,'' i.e., the time after which there exists in theory ...... the performance of each estimator using dynamic time warping to optimally pair estimated and true arrivals. We find OMP significantly outperforms MP in estimating both the arrival times and amplitudes, and having fewer erroneous and duplicated arrivals.......We investigate the use of greedy sparse approximation for facilitating the time-domain analysis of room impulse responses (RIRs), specifically locating the times and amplitudes of arrivals to not long after the upper bound of the ``mixing time,'' i.e., the time after which there exists in theory...... the same number of sound rays per unit volume throughout the room. We compare the performance of two methods of greedy sparse approximation --- matching pursuit (MP) and orthogonal MP (OMP) --- for estimating arrival times and amplitudes. By using RIRs generated from a stochastic model, we quantify...

  1. A new greedy search method for the design of digital IIR filter

    Directory of Open Access Journals (Sweden)

    Ranjit Kaur

    2015-07-01

    Full Text Available A new greedy search method is applied in this paper to design the optimal digital infinite impulse response (IIR filter. The greedy search method is based on binary successive approximation (BSA and evolutionary search (ES. The suggested greedy search method optimizes the magnitude response and the phase response simultaneously and also finds the lowest order of the filter. The order of the filter is controlled by a control gene whose value is also optimized along with the filter coefficients to obtain optimum order of designed IIR filter. The stability constraints of IIR filter are taken care of during the design procedure. To determine the trade-off relationship between conflicting objectives in the non-inferior domain, the weighting method is exploited. The proposed approach is effectively applied to solve the multiobjective optimization problems of designing the digital low-pass (LP, high-pass (HP, bandpass (BP, and bandstop (BS filters. It has been demonstrated that this technique not only fulfills all types of filter performance requirements, but also the lowest order of the filter can be found. The computational experiments show that the proposed approach gives better digital IIR filters than the existing evolutionary algorithm (EA based methods.

  2. Greedy and Linear Ensembles of Machine Learning Methods Outperform Single Approaches for QSPR Regression Problems.

    Science.gov (United States)

    Kew, William; Mitchell, John B O

    2015-09-01

    The application of Machine Learning to cheminformatics is a large and active field of research, but there exist few papers which discuss whether ensembles of different Machine Learning methods can improve upon the performance of their component methodologies. Here we investigated a variety of methods, including kernel-based, tree, linear, neural networks, and both greedy and linear ensemble methods. These were all tested against a standardised methodology for regression with data relevant to the pharmaceutical development process. This investigation focused on QSPR problems within drug-like chemical space. We aimed to investigate which methods perform best, and how the 'wisdom of crowds' principle can be applied to ensemble predictors. It was found that no single method performs best for all problems, but that a dynamic, well-structured ensemble predictor would perform very well across the board, usually providing an improvement in performance over the best single method. Its use of weighting factors allows the greedy ensemble to acquire a bigger contribution from the better performing models, and this helps the greedy ensemble generally to outperform the simpler linear ensemble. Choice of data preprocessing methodology was found to be crucial to performance of each method too. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  3. Analysis of Greedy Decision Making for Geographic Routing for Networks of Randomly Moving Objects

    Directory of Open Access Journals (Sweden)

    Amber Israr

    2016-04-01

    Full Text Available Autonomous and self-organizing wireless ad-hoc communication networks for moving objects consist of nodes, which use no centralized network infrastructure. Examples of moving object networks are networks of flying objects, networks of vehicles, networks of moving people or robots. Moving object networks have to face many critical challenges in terms of routing because of dynamic topological changes and asymmetric networks links. A suitable and effective routing mechanism helps to extend the deployment of moving nodes. In this paper an attempt has been made to analyze the performance of the Greedy Decision method (position aware distance based algorithm for geographic routing for network nodes moving according to the random waypoint mobility model. The widely used GPSR (Greedy Packet Stateless Routing protocol utilizes geographic distance and position based data of nodes to transmit packets towards destination nodes. In this paper different scenarios have been tested to develop a concrete set of recommendations for optimum deployment of distance based Greedy Decision of Geographic Routing in randomly moving objects network

  4. Development of Window-based program for analysis and visualization of two-dimensional stress field in digital photoelasticity

    Directory of Open Access Journals (Sweden)

    Pichet Pinit

    2009-07-01

    Full Text Available This paper describes the development of a Window-based framework for analyzing and visualizing two-dimensional stress field in digital photoelasticity. The program is implemented as stand-alone software. The program contains mainly two parts: computational part and visual part supplemented with several image-processing functions. The computation method used in the program for retrieval of photoelastic parameters (isoclinic and isochromatic parameters is the phase stepping method. The visualization links between the results and the user by a gray scale or color map of such parameters, which is very convenient to the user for physical interpretation. With the Windows-based framework, additional modules eithercomputation or visualization can be simply added to the program.

  5. DIALIGN-TX: greedy and progressive approaches for segment-based multiple sequence alignment

    Directory of Open Access Journals (Sweden)

    Morgenstern Burkhard

    2008-05-01

    Full Text Available Abstract Background DIALIGN-T is a reimplementation of the multiple-alignment program DIALIGN. Due to several algorithmic improvements, it produces significantly better alignments on locally and globally related sequence sets than previous versions of DIALIGN. However, like the original implementation of the program, DIALIGN-T uses a a straight-forward greedy approach to assemble multiple alignments from local pairwise sequence similarities. Such greedy approaches may be vulnerable to spurious random similarities and can therefore lead to suboptimal results. In this paper, we present DIALIGN-TX, a substantial improvement of DIALIGN-T that combines our previous greedy algorithm with a progressive alignment approach. Results Our new heuristic produces significantly better alignments, especially on globally related sequences, without increasing the CPU time and memory consumption exceedingly. The new method is based on a guide tree; to detect possible spurious sequence similarities, it employs a vertex-cover approximation on a conflict graph. We performed benchmarking tests on a large set of nucleic acid and protein sequences For protein benchmarks we used the benchmark database BALIBASE 3 and an updated release of the database IRMBASE 2 for assessing the quality on globally and locally related sequences, respectively. For alignment of nucleic acid sequences, we used BRAliBase II for global alignment and a newly developed database of locally related sequences called DIRM-BASE 1. IRMBASE 2 and DIRMBASE 1 are constructed by implanting highly conserved motives at random positions in long unalignable sequences. Conclusion On BALIBASE3, our new program performs significantly better than the previous program DIALIGN-T and outperforms the popular global aligner CLUSTAL W, though it is still outperformed by programs that focus on global alignment like MAFFT, MUSCLE and T-COFFEE. On the locally related test sets in IRMBASE 2 and DIRM-BASE 1, our method

  6. Design of ACM system based on non-greedy punctured LDPC codes

    Science.gov (United States)

    Lu, Zijun; Jiang, Zihong; Zhou, Lin; He, Yucheng

    2017-08-01

    In this paper, an adaptive coded modulation (ACM) scheme based on rate-compatible LDPC (RC-LDPC) codes was designed. The RC-LDPC codes were constructed by a non-greedy puncturing method which showed good performance in high code rate region. Moreover, the incremental redundancy scheme of LDPC-based ACM system over AWGN channel was proposed. By this scheme, code rates vary from 2/3 to 5/6 and the complication of the ACM system is lowered. Simulations show that more and more obvious coding gain can be obtained by the proposed ACM system with higher throughput.

  7. Contents

    Directory of Open Access Journals (Sweden)

    Editor IJRED

    2012-11-01

    Full Text Available International Journal of Renewable Energy Development www.ijred.com Volume 1             Number 3            October 2012                ISSN 2252- 4940   CONTENTS OF ARTICLES page Design and Economic Analysis of a Photovoltaic System: A Case Study 65-73 C.O.C. Oko , E.O. Diemuodeke, N.F. Omunakwe, and E. Nnamdi     Development of Formaldehyde Adsorption using Modified Activated Carbon – A Review 75-80 W.D.P Rengga , M. Sudibandriyo and M. Nasikin     Process Optimization for Ethyl Ester Production in Fixed Bed Reactor Using Calcium Oxide Impregnated Palm Shell Activated Carbon (CaO/PSAC 81-86 A. Buasri , B. Ksapabutr, M. Panapoy and N. Chaiyut     Wind Resource Assessment in Abadan Airport in Iran 87-97 Mojtaba Nedaei       The Energy Processing by Power Electronics and its Impact on Power Quality 99-105 J. E. Rocha and B. W. D. C. Sanchez       First Aspect of Conventional Power System Assessment for High Wind Power Plants Penetration 107-113 A. Merzic , M. Music, and M. Rascic   Experimental Study on the Production of Karanja Oil Methyl Ester and Its Effect on Diesel Engine 115-122 N. Shrivastava,  , S.N. Varma and M. Pandey  

  8. Biclustering of gene expression data using reactive greedy randomized adaptive search procedure.

    Science.gov (United States)

    Dharan, Smitha; Nair, Achuthsankar S

    2009-01-30

    Biclustering algorithms belong to a distinct class of clustering algorithms that perform simultaneous clustering of both rows and columns of the gene expression matrix and can be a very useful analysis tool when some genes have multiple functions and experimental conditions are diverse. Cheng and Church have introduced a measure called mean squared residue score to evaluate the quality of a bicluster and has become one of the most popular measures to search for biclusters. In this paper, we review basic concepts of the metaheuristics Greedy Randomized Adaptive Search Procedure (GRASP)-construction and local search phases and propose a new method which is a variant of GRASP called Reactive Greedy Randomized Adaptive Search Procedure (Reactive GRASP) to detect significant biclusters from large microarray datasets. The method has two major steps. First, high quality bicluster seeds are generated by means of k-means clustering. In the second step, these seeds are grown using the Reactive GRASP, in which the basic parameter that defines the restrictiveness of the candidate list is self-adjusted, depending on the quality of the solutions found previously. We performed statistical and biological validations of the biclusters obtained and evaluated the method against the results of basic GRASP and as well as with the classic work of Cheng and Church. The experimental results indicate that the Reactive GRASP approach outperforms the basic GRASP algorithm and Cheng and Church approach. The Reactive GRASP approach for the detection of significant biclusters is robust and does not require calibration efforts.

  9. Effective Iterated Greedy Algorithm for Flow-Shop Scheduling Problems with Time lags

    Science.gov (United States)

    ZHAO, Ning; YE, Song; LI, Kaidian; CHEN, Siyu

    2017-05-01

    Flow shop scheduling problem with time lags is a practical scheduling problem and attracts many studies. Permutation problem(PFSP with time lags) is concentrated but non-permutation problem(non-PFSP with time lags) seems to be neglected. With the aim to minimize the makespan and satisfy time lag constraints, efficient algorithms corresponding to PFSP and non-PFSP problems are proposed, which consist of iterated greedy algorithm for permutation(IGTLP) and iterated greedy algorithm for non-permutation (IGTLNP). The proposed algorithms are verified using well-known simple and complex instances of permutation and non-permutation problems with various time lag ranges. The permutation results indicate that the proposed IGTLP can reach near optimal solution within nearly 11% computational time of traditional GA approach. The non-permutation results indicate that the proposed IG can reach nearly same solution within less than 1% computational time compared with traditional GA approach. The proposed research combines PFSP and non-PFSP together with minimal and maximal time lag consideration, which provides an interesting viewpoint for industrial implementation.

  10. Robust Nonlinear Regression: A Greedy Approach Employing Kernels With Application to Image Denoising

    Science.gov (United States)

    Papageorgiou, George; Bouboulis, Pantelis; Theodoridis, Sergios

    2017-08-01

    We consider the task of robust non-linear regression in the presence of both inlier noise and outliers. Assuming that the unknown non-linear function belongs to a Reproducing Kernel Hilbert Space (RKHS), our goal is to estimate the set of the associated unknown parameters. Due to the presence of outliers, common techniques such as the Kernel Ridge Regression (KRR) or the Support Vector Regression (SVR) turn out to be inadequate. Instead, we employ sparse modeling arguments to explicitly model and estimate the outliers, adopting a greedy approach. The proposed robust scheme, i.e., Kernel Greedy Algorithm for Robust Denoising (KGARD), is inspired by the classical Orthogonal Matching Pursuit (OMP) algorithm. Specifically, the proposed method alternates between a KRR task and an OMP-like selection step. Theoretical results concerning the identification of the outliers are provided. Moreover, KGARD is compared against other cutting edge methods, where its performance is evaluated via a set of experiments with various types of noise. Finally, the proposed robust estimation framework is applied to the task of image denoising, and its enhanced performance in the presence of outliers is demonstrated.

  11. Comparing imagery in The Greedy Hippo and Crouching Tiger, Hidden Dragon

    Directory of Open Access Journals (Sweden)

    John R. Botha

    2012-11-01

    Full Text Available This article used as point of departure the Ngano song-story entitled The Greedy Hippo as developed by Christiaan van der Westhuizen and based on the Tambani embroidery project. This animated interpretation of The Greedy Hippo is used to further the aims of interdisciplinary research as stated by the original project by comparing its fantasy imagery with that of the Chinese film Crouching Tiger, Hidden Dragon by director Ang Lee. The analysis of the images in both works of art has been based on Jungian archetypes, with specific reference to the need for an esoteric and imaginative reading of fantasy in the chosen works of art. Reference was made to the dominant role of realism as style in Western art as opposed to the more esoteric, symbolic, and fantasy imagery of the art of other cultures, with emphasis on China. Chinese landscape painting and even poetry has been briefly contextualised with regards to the chosen works of art. Finally, the different characters of both works of art were analysed within the contexts of their symbolic meanings as based on Jungian archetypes, with particular reference to the scenes where the characters are depicted as flying through the air, which were explained within the contexts of Wu Xia martial arts style films.s.

  12. Seismic signal time-frequency analysis based on multi-directional window using greedy strategy

    Science.gov (United States)

    Chen, Yingpin; Peng, Zhenming; Cheng, Zhuyuan; Tian, Lin

    2017-08-01

    Wigner-Ville distribution (WVD) is an important time-frequency analysis technology with a high energy distribution in seismic signal processing. However, it is interfered by many cross terms. To suppress the cross terms of the WVD and keep the concentration of its high energy distribution, an adaptive multi-directional filtering window in the ambiguity domain is proposed. This begins with the relationship of the Cohen distribution and the Gabor transform combining the greedy strategy and the rotational invariance property of the fractional Fourier transform in order to propose the multi-directional window, which extends the one-dimensional, one directional, optimal window function of the optimal fractional Gabor transform (OFrGT) to a two-dimensional, multi-directional window in the ambiguity domain. In this way, the multi-directional window matches the main auto terms of the WVD more precisely. Using the greedy strategy, the proposed window takes into account the optimal and other suboptimal directions, which also solves the problem of the OFrGT, called the local concentration phenomenon, when encountering a multi-component signal. Experiments on different types of both the signal models and the real seismic signals reveal that the proposed window can overcome the drawbacks of the WVD and the OFrGT mentioned above. Finally, the proposed method is applied to a seismic signal's spectral decomposition. The results show that the proposed method can explore the space distribution of a reservoir more precisely.

  13. Incremental approach for radial basis functions mesh deformation with greedy algorithm

    Science.gov (United States)

    Selim, Mohamed M.; Koomullil, Roy P.; Shehata, Ahmed S.

    2017-07-01

    Mesh Deformation is an important element of any fluid-structure interaction simulation. In this article, a new methodology is presented for the deformation of volume meshes using incremental radial basis function (RBF) based interpolation. A greedy algorithm is used to select a small subset of the surface nodes iteratively. Two incremental approaches are introduced to solve the RBF system of equations: 1) block matrix inversion based approach and 2) modified LU decomposition approach. The use of incremental approach decreased the computational complexity of solving the system of equations within each greedy algorithm's iteration from O (n3) to O (n2). Results are presented from an accuracy study using specified deformations on a 2D surface. Mesh deformations for bending and twisting of a 3D rectangular supercritical wing have been demonstrated. Outcomes showed the incremental approaches reduce the CPU time up to 67% as compared to a traditional RBF matrix solver. Finally, the proposed mesh deformation approach was integrated within a fluid-structure interaction solver for investigating a flow induced cantilever beam vibration.

  14. A Guiding Evolutionary Algorithm with Greedy Strategy for Global Optimization Problems

    Directory of Open Access Journals (Sweden)

    Leilei Cao

    2016-01-01

    Full Text Available A Guiding Evolutionary Algorithm (GEA with greedy strategy for global optimization problems is proposed. Inspired by Particle Swarm Optimization, the Genetic Algorithm, and the Bat Algorithm, the GEA was designed to retain some advantages of each method while avoiding some disadvantages. In contrast to the usual Genetic Algorithm, each individual in GEA is crossed with the current global best one instead of a randomly selected individual. The current best individual served as a guide to attract offspring to its region of genotype space. Mutation was added to offspring according to a dynamic mutation probability. To increase the capability of exploitation, a local search mechanism was applied to new individuals according to a dynamic probability of local search. Experimental results show that GEA outperformed the other three typical global optimization algorithms with which it was compared.

  15. Uncovering the community structure in signed social networks based on greedy optimization

    Science.gov (United States)

    Chen, Yan; Yan, Jiaqi; Yang, Yu; Chen, Junhua

    2017-05-01

    The formality of signed relationships has been recently adopted in a lot of complicated systems. The relations among these entities are complicated and multifarious. We cannot indicate these relationships only by positive links, and signed networks have been becoming more and more universal in the study of social networks when community is being significant. In this paper, to identify communities in signed networks, we exploit a new greedy algorithm, taking signs and the density of these links into account. The main idea of the algorithm is the initial procedure of signed modularity and the corresponding update rules. Specially, we employ the “Asymmetric and Constrained Belief Evolution” procedure to evaluate the optimal number of communities. According to the experimental results, the algorithm is proved to be able to run well. More specifically, the proposed algorithm is very efficient for these networks with medium size, both dense and sparse.

  16. GRISOTTO: A greedy approach to improve combinatorial algorithms for motif discovery with prior knowledge

    Directory of Open Access Journals (Sweden)

    Oliveira Arlindo L

    2011-04-01

    Full Text Available Abstract Background Position-specific priors (PSP have been used with success to boost EM and Gibbs sampler-based motif discovery algorithms. PSP information has been computed from different sources, including orthologous conservation, DNA duplex stability, and nucleosome positioning. The use of prior information has not yet been used in the context of combinatorial algorithms. Moreover, priors have been used only independently, and the gain of combining priors from different sources has not yet been studied. Results We extend RISOTTO, a combinatorial algorithm for motif discovery, by post-processing its output with a greedy procedure that uses prior information. PSP's from different sources are combined into a scoring criterion that guides the greedy search procedure. The resulting method, called GRISOTTO, was evaluated over 156 yeast TF ChIP-chip sequence-sets commonly used to benchmark prior-based motif discovery algorithms. Results show that GRISOTTO is at least as accurate as other twelve state-of-the-art approaches for the same task, even without combining priors. Furthermore, by considering combined priors, GRISOTTO is considerably more accurate than the state-of-the-art approaches for the same task. We also show that PSP's improve GRISOTTO ability to retrieve motifs from mouse ChiP-seq data, indicating that the proposed algorithm can be applied to data from a different technology and for a higher eukaryote. Conclusions The conclusions of this work are twofold. First, post-processing the output of combinatorial algorithms by incorporating prior information leads to a very efficient and effective motif discovery method. Second, combining priors from different sources is even more beneficial than considering them separately.

  17. Development of windows based software to analyze fluorescence decay with time-correlated single photon counting (TCSPC) setup

    CERN Document Server

    Mallick, M B; Ravindranath, S V G

    2002-01-01

    A VUV spectroscopic facility for studies in photophysics and photochemistry is being set up at INDUS-I synchrotron source, CAT, Indore. For this purpose, a data acquisition system based on time-correlated single photon counting method is being developed for fluorescence lifetime measurement. To estimate fluorescence lifetime from the data collected with this sytem, a Windows based program has been developed using Visual Basic 5.0. It uses instrument response function (IRF) and observed decay curve and estimates parameters of single exponential decay by least square analysis and Marquardt method as convergence mechanism. Estimation of parameters was performed using data collected with a commercial setup. Goodness of fit was judged by evaluating chi R sup 2 , weighted residuals and autocorrelation function. Performance is compared with two commercial software packages and found to be satisfactory.

  18. Slim-Filter: an interactive windows-based application for illumina genome analyzer data assessment and manipulation

    Directory of Open Access Journals (Sweden)

    Golovko Georgiy

    2012-07-01

    Full Text Available Abstract Background The emergence of Next Generation Sequencing technologies has made it possible for individual investigators to generate gigabases of sequencing data per week. Effective analysis and manipulation of these data is limited due to large file sizes, so even simple tasks such as data filtration and quality assessment have to be performed in several steps. This requires (potentially problematic interaction between the investigator and a bioinformatics/computational service provider. Furthermore, such services are often performed using specialized computational facilities. Results We present a Windows-based application, Slim-Filter designed to interactively examine the statistical properties of sequencing reads produced by Illumina Genome Analyzer and to perform a broad spectrum of data manipulation tasks including: filtration of low quality and low complexity reads; filtration of reads containing undesired subsequences (such as parts of adapters and PCR primers used during the sample and sequencing libraries preparation steps; excluding duplicated reads (while keeping each read’s copy number information in a specialized data format; and sorting reads by copy numbers allowing for easy access and manual editing of the resulting files. Slim-Filter is organized as a sequence of windows summarizing the statistical properties of the reads. Each data manipulation step has roll-back abilities, allowing for return to previous steps of the data analysis process. Slim-Filter is written in C++ and is compatible with fasta, fastq, and specialized AS file formats presented in this manuscript. Setup files and a user’s manual are available for download at the supplementary web site (https://www.bioinfo.uh.edu/Slim_Filter/. Conclusion The presented Windows-based application has been developed with the goal of providing individual investigators with integrated sequencing reads analysis, curation, and manipulation capabilities.

  19. On the statistics of uplink inter-cell interference with greedy resource allocation

    KAUST Repository

    Tabassum, Hina

    2012-10-03

    In this paper, we introduce a new methodology to model the uplink inter-cell interference (ICI) in wireless cellular networks. The model takes into account both the effect of channel statistics (i.e., path loss, shadowing, fading) and the resource allocation scheme in the interfering cells. Firstly, we derive a semi-analytical expression for the distribution of the locations of the allocated user in a given cell considering greedy resource allocation with maximum signal-to-noise ratio (SNR) criterion. Based on this, we derive the distribution of the uplink ICI from one neighboring cell. Next, we compute the moment generating function (MGF) of the cumulative ICI observed from all neighboring cells and discuss some examples. Finally, we utilize the derived expressions to evaluate the outage probability in the network. In order to validate the accuracy of the developed semi-analytical expressions, we present comparison results with Monte Carlo simulations. The major benefit of the proposed mechanism is that it helps in estimating the distribution of ICI without the knowledge of instantaneous resource allocations in the neighbor cells. The proposed methodology applies to any shadowing and fading distributions. Moreover, it can be used to evaluate important network performance metrics numerically without the need for time-consuming Monte Carlo simulations. © 2011 IEEE.

  20. A Greedy Algorithm of Data-Dependent User Selection for Fast Fading Gaussian Vector Broadcast Channels

    CERN Document Server

    Takeuchi, Keigo

    2012-01-01

    User selection (US) with Zero-forcing beamforming (ZF-BF) is considered in fast fading Gaussian vector broadcast channels (VBCs) with perfect channel state information (CSI) at the transmitter. A novel criterion for US is proposed, which depends on both CSI and the data symbols, while the conventional criteria only depend on CSI. Since the optimization of US based on the proposed criterion is infeasible, a greedy algorithm of data-dependent US is proposed to perform the optimization approximately. An overhead issue arises in fast fading channels: On every update of US, the transmitter may inform each user whether he/she has been selected, using a certain fraction of resources. This overhead results in a significant rate loss for fast fading channels. In order to circumvent this overhead issue, iterative detection and decoding schemes are derived on the basis of belief propagation (BP). The proposed iterative schemes require no information about whether each user has been selected. The proposed US scheme is co...

  1. A greedy heuristic algorithm for solving the capacitated planar multi-facility location-allocation problem

    Science.gov (United States)

    Luis, Martino; Ramli, Mohammad Fadzli; Lin, Abdullah

    2016-10-01

    This study investigates the capacitated planar multi-facility location-allocation problem by considering various capacity constraints. The problem is also known as the capacitated multi-source Weber problem, where the number of facilities to be located is specified and each of which has a capacity constraint. An efficient greedy randomised adaptive search procedure (GRASP) is proposed to deal with the problem. A scheme that applies the furthest distance rule (FDR) and self-adjusted threshold parameters to generate initial facility locations that are situated sparsely within GRASP framework is also presented. The construction of the restricted candidate list (RCL) within GRASP is also guided by applying a concept of restricted regions that prevents new facility locations to be sited too close to the previous selected facility locations. The performance of the proposed GRASP heuristics is tested using benchmark data sets from literature. The computational experiments show that the proposed methods provide encouraging solutions when compared to recently published papers. Some future research avenues on the subject are also briefly highlighted.

  2. Unsupervised quantification of abdominal fat from CT images using Greedy Snakes

    Science.gov (United States)

    Agarwal, Chirag; Dallal, Ahmed H.; Arbabshirani, Mohammad R.; Patel, Aalpen; Moore, Gregory

    2017-02-01

    Adipose tissue has been associated with adverse consequences of obesity. Total adipose tissue (TAT) is divided into subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT). Intra-abdominal fat (VAT), located inside the abdominal cavity, is a major factor for the classic obesity related pathologies. Since direct measurement of visceral and subcutaneous fat is not trivial, substitute metrics like waist circumference (WC) and body mass index (BMI) are used in clinical settings to quantify obesity. Abdominal fat can be assessed effectively using CT or MRI, but manual fat segmentation is rather subjective and time-consuming. Hence, an automatic and accurate quantification tool for abdominal fat is needed. The goal of this study is to extract TAT, VAT and SAT fat from abdominal CT in a fully automated unsupervised fashion using energy minimization techniques. We applied a four step framework consisting of 1) initial body contour estimation, 2) approximation of the body contour, 3) estimation of inner abdominal contour using Greedy Snakes algorithm, and 4) voting, to segment the subcutaneous and visceral fat. We validated our algorithm on 952 clinical abdominal CT images (from 476 patients with a very wide BMI range) collected from various radiology departments of Geisinger Health System. To our knowledge, this is the first study of its kind on such a large and diverse clinical dataset. Our algorithm obtained a 3.4% error for VAT segmentation compared to manual segmentation. These personalized and accurate measurements of fat can complement traditional population health driven obesity metrics such as BMI and WC.

  3. Mad scientists, compassionate healers, and greedy egotists: the portrayal of physicians in the movies.

    Science.gov (United States)

    Flores, Glenn

    2002-01-01

    Cinematic depictions of physicians potentially can affect public expectations and the patient-physician relationship, but little attention has been devoted to portrayals of physicians in movies. The objective of the study was the analysis of cinematic depictions of physicians to determine common demographic attributes of movie physicians, major themes, and whether portrayals have changed over time. All movies released on videotape with physicians as main characters and readily available to the public were viewed in their entirety. Data were collected on physician characteristics, diagnoses, and medical accuracy, and dialogue concerning physicians was transcribed. The results showed that in the 131 films, movie physicians were significantly more likely to be male (p film physicians has declined steadily in recent decades. Movie physicians are most commonly surgeons (33%), psychiatrists (26%), and family practitioners (18%). Physicians were portrayed negatively in 44% of movies, and since the 1960s positive portrayals declined while negative portrayals increased. Physicians frequently are depicted as greedy, egotistical, uncaring, and unethical, especially in recent films. Medical inaccuracies occurred in 27% of films. Compassion and idealism were common in early physician movies but are increasingly scarce in recent decades. A recurrent theme is the "mad scientist," the physician-researcher that values research more than patients' welfare. Portrayals of physicians as egotistical and materialistic have increased, whereas sexism and racism have waned. Movies from the past two decades have explored critical issues surrounding medical ethics and managed care. We conclude that negative cinematic portrayals of physicians are on the rise, which may adversely affect patient expectations and the patient-physician relationship. Nevertheless, films about physicians can serve as useful gauges of public opinion about the medical profession, as tools for medical education, and as

  4. Greedy Sampling and Incremental Surrogate Model-Based Tailoring of Aeroservoelastic Model Database for Flexible Aircraft

    Science.gov (United States)

    Wang, Yi; Pant, Kapil; Brenner, Martin J.; Ouellette, Jeffrey A.

    2018-01-01

    This paper presents a data analysis and modeling framework to tailor and develop linear parameter-varying (LPV) aeroservoelastic (ASE) model database for flexible aircrafts in broad 2D flight parameter space. The Kriging surrogate model is constructed using ASE models at a fraction of grid points within the original model database, and then the ASE model at any flight condition can be obtained simply through surrogate model interpolation. The greedy sampling algorithm is developed to select the next sample point that carries the worst relative error between the surrogate model prediction and the benchmark model in the frequency domain among all input-output channels. The process is iterated to incrementally improve surrogate model accuracy till a pre-determined tolerance or iteration budget is met. The methodology is applied to the ASE model database of a flexible aircraft currently being tested at NASA/AFRC for flutter suppression and gust load alleviation. Our studies indicate that the proposed method can reduce the number of models in the original database by 67%. Even so the ASE models obtained through Kriging interpolation match the model in the original database constructed directly from the physics-based tool with the worst relative error far below 1%. The interpolated ASE model exhibits continuously-varying gains along a set of prescribed flight conditions. More importantly, the selected grid points are distributed non-uniformly in the parameter space, a) capturing the distinctly different dynamic behavior and its dependence on flight parameters, and b) reiterating the need and utility for adaptive space sampling techniques for ASE model database compaction. The present framework is directly extendible to high-dimensional flight parameter space, and can be used to guide the ASE model development, model order reduction, robust control synthesis and novel vehicle design of flexible aircraft.

  5. The Greedy Hippo and Red Riding Hood: The grotesque in fairy tales

    Directory of Open Access Journals (Sweden)

    Dineke van der Walt

    2012-11-01

    Full Text Available This article presents a comparative reading of two folktales that are also characterised as children’s stories (one from Venda folklore and the other a popular European narrative in order to explore a number of similarities between these stories. These similarities include the grotesque activity of eating human flesh, the way that overly trusting people are tricked by means of a masquerade and other ‘unethical’ and ‘immoral’ activities that occur in both narratives. In The Greedy Hippo (Hippopotamus throws his weight around, the monster for instance mimics the voice of a little boy in order to trick his sister and gain access to the children’s hut, whilst in Little Red Riding Hood the wolf tricks the grandmother in the same way to gain access to her house, in order to later trick Red Riding Hood. Furthermore, in both stories, the little girls (as well as the grandmother in Little Red Riding Hood are swallowed by vicious wild animals (either a hippopotamus or a wolf. As is often the case in fairy tales; however, the victims are saved or escape and live happily ever after. In this article, I argue that, although it seems absurd for children’s stories to deal with the grotesque, the presence of the grotesque actually serves an elevating purpose. I conclude that, because of the shock value of the grotesque, these stories not only intrigue children emotionally, but that the shocking quality of the grotesque also serves as a source of fascination for them. Therefore, the warning messages contained in the stories are more persuasively communicated and better remembered by the child audience.

  6. Optimization of travel salesman problem using the ant colony system and Greedy search; Optimizacion del problema del agente viajero usando el sistema de colonia de hormigas y busqueda Greedy

    Energy Technology Data Exchange (ETDEWEB)

    Esquivel E, J.; Ordonez A, A. [Universidad Autonoma del Estado de Mexico, Facultad de Ingenieria, Cerro de Coatepec s/n, Toluca, Estado de Mexico (Mexico); Ortiz S, J. J. [Departamento de Sistemas Nucleares, ININ, Carretera Mexico-Toluca s/n, Ocoyoacac 52750, Estado de Mexico (Mexico)

    2008-07-01

    In this paper we present some results obtained during the development of optimization systems that can be used to design refueling and patterns of control rods in a BWR. These systems use ant colonies and Greedy search. The first phase of this project is to be familiar with these optimization techniques applied to the problem of travel salesman problem (TSP). The utility of TSP study is that, like the refueling design and pattern design of control rods are problems of combinative optimization. Even, the similarity with the problem of the refueling design is remarkable. It is presented some results for the TSP with the 32 state capitals of Mexico country. (Author)

  7. Optimization of approximate decision rules relative to number of misclassifications: Comparison of greedy and dynamic programming approaches

    KAUST Repository

    Amin, Talha

    2013-01-01

    In the paper, we present a comparison of dynamic programming and greedy approaches for construction and optimization of approximate decision rules relative to the number of misclassifications. We use an uncertainty measure that is a difference between the number of rows in a decision table T and the number of rows with the most common decision for T. For a nonnegative real number γ, we consider γ-decision rules that localize rows in subtables of T with uncertainty at most γ. Experimental results with decision tables from the UCI Machine Learning Repository are also presented. © 2013 Springer-Verlag.

  8. Greedy Algorithm for the Construction of Approximate Decision Rules for Decision Tables with Many-Valued Decisions

    KAUST Repository

    Azad, Mohammad

    2016-10-20

    The paper is devoted to the study of a greedy algorithm for construction of approximate decision rules. This algorithm is applicable to decision tables with many-valued decisions where each row is labeled with a set of decisions. For a given row, we should find a decision from the set attached to this row. We consider bounds on the precision of this algorithm relative to the length of rules. To illustrate proposed approach we study a problem of recognition of labels of points in the plain. This paper contains also results of experiments with modified decision tables from UCI Machine Learning Repository.

  9. DR_SEQAN: a PC/Windows-based software to evaluate drug resistance using human immunodeficiency virus type 1 genotypes

    Directory of Open Access Journals (Sweden)

    Menéndez-Arias Luis

    2006-03-01

    coded in Visual Basic for use in PC/Windows-based platforms. The program is freely available under the General Public License. The program (including the integrated database, documentation and a sample sequence can be downloaded from http://www2.cbm.uam.es:8080/lmenendez/DR_SEQAN.zip

  10. Assessment of radionuclide databases in CAP88 mainframe version 1.0 and Windows-based version 3.0.

    Science.gov (United States)

    LaBone, Elizabeth D; Farfán, Eduardo B; Lee, Patricia L; Jannik, G Timothy; Donnelly, Elizabeth H; Foley, Trevor Q

    2009-09-01

    In this study the radionuclide databases for two versions of the Clean Air Act Assessment Package-1988 (CAP88) computer model were assessed in detail. CAP88 estimates radiation dose and the risk of health effects to human populations from radionuclide emissions to air. This program is used by several U.S. Department of Energy (DOE) facilities to comply with National Emission Standards for Hazardous Air Pollutants regulations. CAP88 Mainframe, referred to as version 1.0 on the U.S. Environmental Protection Agency Web site (http://www.epa.gov/radiation/assessment/CAP88/), was the very first CAP88 version released in 1988. Some DOE facilities including the Savannah River Site still employ this version (1.0) while others use the more user-friendly personal computer Windows-based version 3.0 released in December 2007. Version 1.0 uses the program RADRISK based on International Commission on Radiological Protection Publication 30 as its radionuclide database. Version 3.0 uses half-life, dose, and risk factor values based on Federal Guidance Report 13. Differences in these values could cause different results for the same input exposure data (same scenario), depending on which version of CAP88 is used. Consequently, the differences between the two versions are being assessed in detail at Savannah River National Laboratory. The version 1.0 and 3.0 database files contain 496 and 838 radionuclides, respectively, and though one would expect the newer version to include all the 496 radionuclides, 35 radionuclides are listed in version 1.0 that are not included in version 3.0. The majority of these has either extremely short or long half-lives or is no longer in production; however, some of the short-lived radionuclides might produce progeny of great interest at DOE sites. In addition, 122 radionuclides were found to have different half-lives in the two versions, with 21 over 3 percent different and 12 over 10 percent different.

  11. Beyond sparsity: recovering structured representations by l¹ minimization and greedy algorithms. - Application to the analysis of sparse underdetermined ICA -

    DEFF Research Database (Denmark)

    Gribonval, Rémi; Nielsen, Morten

    In a series of recent results, several authors have shown that both l¹-minimization (Basis Pursuit) and greedy algorithms (Matching Pursuit) can successfully recover a sparse representation of a signal provided that it is sparse enough, that is to say if its support (which indicates where are loc...

  12. Design and implementation of priority and time-window based traffic scheduling and routing-spectrum allocation mechanism in elastic optical networks

    Science.gov (United States)

    Wang, Honghuan; Xing, Fangyuan; Yin, Hongxi; Zhao, Nan; Lian, Bizhan

    2016-02-01

    With the explosive growth of network services, the reasonable traffic scheduling and efficient configuration of network resources have an important significance to increase the efficiency of the network. In this paper, an adaptive traffic scheduling policy based on the priority and time window is proposed and the performance of this algorithm is evaluated in terms of scheduling ratio. The routing and spectrum allocation are achieved by using the Floyd shortest path algorithm and establishing a node spectrum resource allocation model based on greedy algorithm, which is proposed by us. The fairness index is introduced to improve the capability of spectrum configuration. The results show that the designed traffic scheduling strategy can be applied to networks with multicast and broadcast functionalities, and makes them get real-time and efficient response. The scheme of node spectrum configuration improves the frequency resource utilization and gives play to the efficiency of the network.

  13. A greedy algorithm for construction of decision trees for tables with many-valued decisions - A comparative study

    KAUST Repository

    Azad, Mohammad

    2013-11-25

    In the paper, we study a greedy algorithm for construction of decision trees. This algorithm is applicable to decision tables with many-valued decisions where each row is labeled with a set of decisions. For a given row, we should find a decision from the set attached to this row. Experimental results for data sets from UCI Machine Learning Repository and randomly generated tables are presented. We make a comparative study of the depth and average depth of the constructed decision trees for proposed approach and approach based on generalized decision. The obtained results show that the proposed approach can be useful from the point of view of knowledge representation and algorithm construction.

  14. An iterated greedy algorithm for the single-machine total weighted tardiness problem with sequence-dependent setup times

    Science.gov (United States)

    Deng, Guanlong; Gu, Xingsheng

    2014-03-01

    This article presents an enhanced iterated greedy (EIG) algorithm that searches both insert and swap neighbourhoods for the single-machine total weighted tardiness problem with sequence-dependent setup times. Novel elimination rules and speed-ups are proposed for the swap move to make the employment of swap neighbourhood worthwhile due to its reduced computational expense. Moreover, a perturbation operator is newly designed as a substitute for the existing destruction and construction procedures to prevent the search from being attracted to local optima. To validate the proposed algorithm, computational experiments are conducted on a benchmark set from the literature. The results show that the EIG outperforms the existing state-of-the-art algorithms for the considered problem.

  15. Support Vector Data Description Model to Map Specific Land Cover with Optimal Parameters Determined from a Window-Based Validation Set.

    Science.gov (United States)

    Zhang, Jinshui; Yuan, Zhoumiqi; Shuai, Guanyuan; Pan, Yaozhong; Zhu, Xiufang

    2017-04-26

    This paper developed an approach, the window-based validation set for support vector data description (WVS-SVDD), to determine optimal parameters for support vector data description (SVDD) model to map specific land cover by integrating training and window-based validation sets. Compared to the conventional approach where the validation set included target and outlier pixels selected visually and randomly, the validation set derived from WVS-SVDD constructed a tightened hypersphere because of the compact constraint by the outlier pixels which were located neighboring to the target class in the spectral feature space. The overall accuracies for wheat and bare land achieved were as high as 89.25% and 83.65%, respectively. However, target class was underestimated because the validation set covers only a small fraction of the heterogeneous spectra of the target class. The different window sizes were then tested to acquire more wheat pixels for validation set. The results showed that classification accuracy increased with the increasing window size and the overall accuracies were higher than 88% at all window size scales. Moreover, WVS-SVDD showed much less sensitivity to the untrained classes than the multi-class support vector machine (SVM) method. Therefore, the developed method showed its merits using the optimal parameters, tradeoff coefficient (C) and kernel width (s), in mapping homogeneous specific land cover.

  16. Support Vector Data Description Model to Map Specific Land Cover with Optimal Parameters Determined from a Window-Based Validation Set

    Directory of Open Access Journals (Sweden)

    Jinshui Zhang

    2017-04-01

    Full Text Available This paper developed an approach, the window-based validation set for support vector data description (WVS-SVDD, to determine optimal parameters for support vector data description (SVDD model to map specific land cover by integrating training and window-based validation sets. Compared to the conventional approach where the validation set included target and outlier pixels selected visually and randomly, the validation set derived from WVS-SVDD constructed a tightened hypersphere because of the compact constraint by the outlier pixels which were located neighboring to the target class in the spectral feature space. The overall accuracies for wheat and bare land achieved were as high as 89.25% and 83.65%, respectively. However, target class was underestimated because the validation set covers only a small fraction of the heterogeneous spectra of the target class. The different window sizes were then tested to acquire more wheat pixels for validation set. The results showed that classification accuracy increased with the increasing window size and the overall accuracies were higher than 88% at all window size scales. Moreover, WVS-SVDD showed much less sensitivity to the untrained classes than the multi-class support vector machine (SVM method. Therefore, the developed method showed its merits using the optimal parameters, tradeoff coefficient (C and kernel width (s, in mapping homogeneous specific land cover.

  17. A Greedy Scanning Data Collection Strategy for Large-Scale Wireless Sensor Networks with a Mobile Sink.

    Science.gov (United States)

    Zhu, Chuan; Zhang, Sai; Han, Guangjie; Jiang, Jinfang; Rodrigues, Joel J P C

    2016-09-06

    Mobile sink is widely used for data collection in wireless sensor networks. It can avoid 'hot spot' problems but energy consumption caused by multihop transmission is still inefficient in real-time application scenarios. In this paper, a greedy scanning data collection strategy (GSDCS) is proposed, and we focus on how to reduce routing energy consumption by shortening total length of routing paths. We propose that the mobile sink adjusts its trajectory dynamically according to the changes of network, instead of predetermined trajectory or random walk. Next, the mobile sink determines which area has more source nodes, then it moves toward this area. The benefit of GSDCS is that most source nodes are no longer needed to upload sensory data for long distances. Especially in event-driven application scenarios, when event area changes, the mobile sink could arrive at the new event area where most source nodes are located currently. Hence energy can be saved. Analytical and simulation results show that compared with existing work, our GSDCS has a better performance in specific application scenarios.

  18. Greedy Algorithms for Finding a Small Set of Primers Satisfying Cover and Length Resolution Conditions in PCR Experiments.

    Science.gov (United States)

    Doi; Imai

    1997-01-01

    Selecting a good collection of primers is very important for polymerase chain reaction (PCR) experiments. Most existing algorithms for primer selection are concerned with computing a primer pair for each DNA sequence. In generalizing the arbitrarily primed PCR, etc., to the case that all DNA sequences of target objects are already known, like about 6000 ORFs of yeast, we may design a small set of primers so that all the targets are PCR amplified and resolved electrophoretically in a series of experiments. This is quite useful because deceasing the number of primers greatly reduces the cost of experiments. Pearson et al. (ISMB 1995: 285-291, 1995; Discrete Appl. Math. 71: 231-246, 1996) consider finding a minimum set of primers covering all given DNA sequences, but their method does not meet necessary biological conditions such as primer amplification and electrophoresis resolution. In this paper, based on the modeling and computational complexity analysis by Doi, we propose algorithms for this primer selection problem. These algorithms do not necessarily minimize the number of primers, but, since basic versions of these problems are shown to be computationally intractable, especially even for approximability with the length resolution condition, this is inevitable. In the algorithms, the amplification condition by a primer pair and the length resolution condition by electrophoresis are incorporated. These algorithms are based on the theoretically well-founded greedy algorithm for the set cover in computer science. Preliminary computational results are presented to show the validity of this approach. The number of computed primers is much less than a half of the number of targets, and hence is less than one forth of the number needed in the multiplex PCR.

  19. SeaBuoySoft – an On-line Automated Windows based Ocean Wave height Data Acquisition and Analysis System for Coastal Field’s Data Collection

    Directory of Open Access Journals (Sweden)

    P.H.Tarudkar

    2014-12-01

    Full Text Available Measurement of various hydraulic parameters such as wave heights for the research and the practical purpose in the coastal fields is one of the critical and challenging but equally important criteria in the field of ocean engineering for the design and the development of hydraulic structures such as construction of sea walls, break waters, oil jetties, fisheries harbors, all other structures, and the ships maneuvering, embankments, berthing on jetties. This paper elucidates the development of “SeaBuoySoft online software system for coastal field‟s wave height data collection” for the coastal application work. The system could be installed along with the associated hardware such as a Digital Waverider Receiver unit and a Waverider Buoy at the shore. The ocean wave height data, transmitted by wave rider buoy installed in the shallow/offshore waters of sea is received by the digital waverider receiver unit and it is interfaced to the SeaBuoySoft software. The design and development of the software system has been worked out in-house at Central Water and Power Research Station, Pune, India. The software has been developed as a Windows based standalone version and is unique of its kind for the reception of real time ocean wave height data, it takes care of its local storage of wave height data for its further analysis work as and when required. The system acquires real time ocean wave height data round the clock requiring no operator intervention during data acquisition process on site.

  20. State-of-the-art Hydrology Education: Development of Windows-based and Web-based Interactive Teaching-Learning Software

    Science.gov (United States)

    Chu, X.

    2011-12-01

    This study, funded by the NSF CAREER program, focuses on developing new methods to quantify microtopography-controlled overland flow processes and integrating the cutting-edge hydrologic research with all-level education and outreach activities. To achieve the educational goal, an interactive teaching-learning software package has been developed. This software, with enhanced visualization capabilities, integrates the new modeling techniques, computer-guided learning processes, and education-oriented tools in a user-friendly interface. Both Windows-based and web-based versions have been developed. The software is specially designed for three major user levels: elementary level (Level 1: K-12 and outreach education), medium level (Level 2: undergraduate education), and advanced level (Level 3: graduate education). Depending on the levels, users are guided to different educational systems. Each system consists of a series of mini "libraries" featured with movies, pictures, and documentation that cover fundamental theories, varying scale experiments, and computer modeling of overland flow generation, surface runoff, and infiltration processes. Testing and practical use of this educational software in undergraduate and graduate teaching demonstrate its effectiveness to promote students' learning and interest in hydrologic sciences. This educational software also has been used as a hydrologic demonstration tool for K-12 students and Native American students through the Nurturing American Tribal Undergraduate Research Education (NATURE) program and Science, Technology, Engineering and Mathematics (STEM) outreach activities.

  1. Greedy subspace clustering.

    Science.gov (United States)

    2016-09-01

    We consider the problem of subspace clustering: given points that lie on or near the union of many low-dimensional linear subspaces, recover the subspaces. To this end, one first identifies sets of points close to the same subspace and uses the sets ...

  2. SIMULATION AND ANALYSIS OF GREEDY ROUTING PROTOCOL IN VIEW OF ENERGY CONSUMPTION AND NETWORK LIFETIME IN THREE DIMENSIONAL UNDERWATER WIRELESS SENSOR NETWORK

    Directory of Open Access Journals (Sweden)

    SHEENA KOHLI

    2017-11-01

    Full Text Available Underwater Wireless Sensor Network (UWSN comprises of a number of miniature sized sensing devices deployed in the sea or ocean, connected by dint of acoustic links to each other. The sensors trap the ambient conditions and transmit the data from one end to another. For transmission of data in any medium, routing protocols play a crucial role. Moreover, being battery limited, an unavoidable parameter to be considered in operation and analysis of protocols is the network energy and the network lifetime. The paper discusses the greedy routing protocol for underwater wireless sensor networks. The simulation of this routing protocol also takes into consideration the characteristics of acoustic communication like attenuation, transmission loss, signal to noise ratio, noise, propagation delay. The results from these observations may be used to construct an accurate underwater communication model.

  3. Ecological studies on the greedy scale, Hemiberlisia rapax (Comstock) (Homoptera: Diaspididae) on pear trees in burg El-Arab area, Alexandria, Egypt.

    Science.gov (United States)

    Mesbah, H A; Moursi Khadiga, S; Mourad, A K; Abdel-Razak Soad, I

    2008-01-01

    The greedy scale, Hemiberlisia rapax (Comstock) causes economic damage on pear trees under irrigation system in Burg El-Arab area (50 Km. West of Alexandria). The infestation rate of H. rapax reached its first maximum rate during August to October, and the second one occurred from January to March. The 1st highest peak of insect population occurred during September and October; the second was during January and February, and the third one corresponded to April for the 1st and the 2nd successive seasons. The statistical analysis was performed to determine the relationship among the weather factors of mean daily temperature, daily relative humidity, wind speed, and dew point in relation to the population activity of Hemiberlisia rapax. The immature stages had two peaks of fluctuation during October to November and July to August. The adult females reached their maximum rates during winter and spring months. Adult males appeared in late March in few numbers. The insect was parasitized by Aphytis diaspidis (Howard) (Hymenoptera: Aphelinidae) in maximum numbers in June and July. This parasitoid had three overlapping generations all the year round. The first in September-October; the second extended from March to May; while the third one lasted from July to September.

  4. A Window-Based, Server-Assisted P2P Network for VoD Services with QoE Guarantees

    Directory of Open Access Journals (Sweden)

    Noé Torres-Cruz

    2017-01-01

    Full Text Available We describe a Peer-to-Peer (P2P network that is designed to support Video on Demand (VoD services. This network is based on a video-file sharing mechanism that classifies peers according to the window (segment of the file that they are downloading. This classification easily allows identifying peers that are able to share windows among them, so one of our major contributions is the definition of a mechanism that could be implemented to efficiently distribute video content in future 5G networks. Considering that cooperation among peers can be insufficient to guarantee an appropriate system performance, we also propose that this network must be assisted by upload bandwidth from servers; since these resources represent an extra cost to the service provider, especially in mobile networks, we complement our work by defining a scheme that efficiently allocates them only to those peers that are in windows with resources scarcity (we called it prioritized windows distribution scheme. On the basis of a fluid model and a Markov chain, we also developed a methodology that allows us to select the system parameters values (e.g., windows sizes or minimum servers upload bandwidth that satisfy a set of Quality of Experience (QoE parameters.

  5. Mejoras de las Heurísticas Greedy empleadas en el secuenciamiento de los Sistemas de Producción Multi-modelo y Multi-nivel

    Directory of Open Access Journals (Sweden)

    Juan José Areal Alonso

    2013-04-01

    Full Text Available Resumen: El problema de secuenciamiento de los sistemas de producción multi-modelo y multi-nivel reside en el alisado de las tasas de producción de los productos finales y también de las tasas de consumo de los diversos subconjuntos y elementos empleados en las etapas previas de producción. Las secuencias deben construirse de acuerdo a las opciones de cada producto, que requieren diferentes recursos y tiempo de producción, siendo el objetivo evitar sobrepasar el potencial de la instalación y de los medios humanos. Este artículo se desarrolla a partir del método Goal-chasing, que es una heurística Greedy desarrollada por Toyota para resolver este problema y que es ampliamente utilizado en la industria del automóvil. El artículo propone una mejora de dicho método con la introducción de pesos diferentes para cada opción con el fin de mejorar el ordenamiento de la secuencia. Profundizando en esta vía, se aplica el método Nelder-Mead de optimización no lineal para obtener los pesos de opciones que minimizan el coste de la secuencia resultante. Los resultados obtenidos aplicando los algoritmos a sistemas de producción multi-modelo y multi-nivel se concretan en el mundo del automóvil para una secuencia inicial, se generalizan a un conjunto de 30 secuencias representativas del entorno industrial del automóvil y se contrastan con referencias clásicas de la literatura. Abstract: The Car Sequencing Problem consists in maintaining a certain order in the vehicles as they pass through the assembly line. Sequences have to be built according to each vehicle's options, each one requiring different resources and production time, with the objective of avoiding to exceed the maximum human and facility potential. In this paper, we use a Greedy heuristic, the Goal-chasing method developed by Toyota, to solve the Car Sequencing Problem. The concept of different weights for each option is introduced to improve the ordering of the sequence. Nelder

  6. Local Content

    CSIR Research Space (South Africa)

    Gibberd, Jeremy

    2016-10-01

    Full Text Available is also delineated in order to demonstrate the implications of local content on building design, construction and operation. The advantages and disadvantages of local content approaches are discussed and illustrated through examples. Finally, broad...

  7. Forward Greedy ANN input selection in a stacked framework with Adaboost.RT - A streamflow forecasting case study exploiting radar rainfall estimates

    Science.gov (United States)

    Brochero, D.; Anctil, F.; Gagné, C.

    2012-04-01

    In input selection (or feature selection), modellers are interested in identifying k of the d dimensions that provide the most information. In hydrology, this problem is particularly relevant when dealing with temporally and spatially distributed data such as radar rainfall estimates or meteorological ensemble forecasts. The most common approaches for input determination of artifitial neural networks (ANN) in water resources are cross-correlation, heuristics, embedding window analysis (chaos theory), and sensitivity analyses. We resorted here to Forward Greedy Selection (FGS), a sensitivity analysis, for identifying the inputs that maximize the performance of ANN forecasting. It consists of a pool of ANNs with different structures, initial weights, and training data subsets. The stacked ANN model was setup through the joint use of stop training and a special type of boosting for regression known as AdaBoost.RT. Several ANN are then used in series, each one exploiting, with incremental probability, data with relative estimation error higher than a pre-set threshold value. The global estimate is then obtained from the aggregation of the estimates of the models (here the median value). Two schemes are compared here, which differ in their input type. The first scheme looks at lagged radar rainfall estimates averaged over entire catchment (the average scenario), while the second scheme deals with the spatial variation fields of the radar rainfall estimates (the distributed scenario). Results lead to three major findings. First, stacked ANN response outperforms the best single ANN (in the same way as many others reports). Second, a positive gain in the test subset of around 20%, when compared to the average scenario, is observed in the distributed scenario. However, the most important result from the selecting process is the final structure of the inputs, for the distributed scenario clearly outlines the areas with the greatest impact on forecasting in terms of the

  8. A Novel CAN Tree Coordinate Routing in Content-Addressable Network

    Directory of Open Access Journals (Sweden)

    Zhongtao Li

    2014-09-01

    Full Text Available In this paper, we propose a novel approach to improve coordination routing while minimizing the maintenance overhead during nodes churn. It bases on “CAN Tree Routing for Content- Addressable Network” 1 which is a solution for peer-to-peer routing. We concentrated on coordinate routing in this paper. The key idea of our approach is a recursion process to calculate target zone code and search in CAN tree 1. Because the hops are via long links in CAN, it enhances routing flexibility and robustness against failures. Nodes automatically adapt routing table to cope with network change. The routing complexity is , which is much better than a uniform greedy routing, while each node maintains two long links in average.

  9. Publishing and Revising Content

    Science.gov (United States)

    Editors and Webmasters can publish content without going through a workflow. Publishing times and dates can be set, and multiple pages can be published in bulk. Making an edit to published content created a revision.

  10. Novel Smart Windows Based on Transparent Phosphorescent OLEDs

    Energy Technology Data Exchange (ETDEWEB)

    Brian D' Andrade; Stephen Forest

    2006-09-15

    In this program, Universal Display Corporation (UDC) and Princeton University developed the use of white transparent phosphorescent organic light emitting devices (PHOLEDs{trademark}) to make low-cost ''transparent OLED (TOLED) smart windows'', that switch rapidly from being a highly efficient solid-state light source to being a transparent window. PHOLEDs are ideal for large area devices, and the UDC-Princeton team has demonstrated white PHOLEDs with efficiencies of >24 lm/W at a luminance of 1,000 cd/m{sup 2}. TOLEDs have transparencies >70% over the visible wavelengths of light, but their transparency drops to less than 5% for wavelengths shorter than 350 nm, so they can also be used as ultraviolet (UV) light filters. In addition to controlling the flow of UV radiation, TOLEDs coupled with an electromechanical or electrically activated reflecting shutter on a glass window can be employed to control the flow of heat from infrared (IR) radiation by varying the reflectance/transparency of the glass for wavelengths greater than 800nm. One particularly attractive shutter technology is reversible electrochromic mirrors (REM). Our goal was therefore to integrate two innovative concepts to meet the U.S. Department of Energy goals: high power efficiency TOLEDs, plus electrically controlled reflectors to produce a ''smart window''. Our efforts during this one year program have succeeded in producing a prototype smart window shown in the Fig. I, below. The four states of the smart window are pictured: reflective with lamp on, reflective with lamp off, transparent with lamp on, and transparent with lamp off. In the transparent states, the image is an outdoor setting viewed through the window. In the reflective states, the image is an indoor setting viewed via reflection off the window. We believe that the integration of our high efficiency white phosphorescent TOLED illumination source, with electrically activated shutters represents an innovative low-cost approach to conserving energy, and such innovative approaches are required to drive towards the DOE's goal of a 50% reduction in electric lighting consumption by 2020, and an energy efficient building. Furthermore, the team of UDC and Princeton University is ideally suited to develop and demonstrate this technical approach because of our recognized expertise in the fields of PHOLED and OLED technologies.

  11. Smart windows based on cholesteric liquid crystals (Conference Presentation)

    Science.gov (United States)

    Khandelwal, Hitesh; Debije, Michael G.; Schenning, Albert P. H. J.

    2017-02-01

    With increase in global warming, use of active cooling and heating devices are continuously increasing to maintain interior temperature of built environment, greenhouses and cars. To reduce the consumption of tremendous amount of energy on cooling and heating devices we need an improved control of transparent features (i.e. windows). In this respect, smart window which is capable for reflecting solar infrared energy without interfering with the visible light would be very attractive. Most of the technologies developed so far are to control the visible light. These technologies block visual contact to the outside world which cause negative effects on human health. An appealing method to selectively control infrared transmission is via utilizing the reflection properties of cholesteric liquid crystals. In our research, we have fabricated a smart window which is capable of reflecting different amount of solar infrared energy depending on the specific climate conditions. The reflection bandwidth can be tuned from 120 nm to 1100 nm in the infrared region without interfering with the visible solar radiations. Calculations reveal that between 8% and 45% of incident solar infrared light can be reflected with a single cell. Simulation studies predicted that more than 12% of the energy spent on heating, cooling and lighting in the built environment can be saved by using the fabricated smart window compared to standard double glazing window.

  12. Development of windows based on highly insulating aerogel glazings

    DEFF Research Database (Denmark)

    Jensen, Karsten Ingerslev; Schultz, Jørgen Munthe; Kristiansen, Finn Harken

    2004-01-01

    glass panes and a specific rim seal. A heat treatment phase (after the supercritical CO2 drying) of the aerogel is currently being developed in order to improve its optical quality. This step increases the solar transmittance about 6 percent points. For glazing prototypes with an aerogel thickness...... of buildings, the window area is the weakest part with respect to the heat loss, but at the same time, it also provides e.g. solar energy gain. Glazing prototypes have been made of aerogel tiles of about 55 cm sq. (elaborated within the projects). Those tiles are quickly evacuated and easily sealed between two...... of approx. 15 mm, a centre heat loss coefficient of below 0.7 W/m² K and a solar transmittance of 76% have been obtained. The research is funded in part by the European Commission within the frameworks of the Non-Nuclear Energy Programme – JOULE III and the Energy, Environment and Sustainable Development...

  13. Energy performance of windows based on the net energy gain

    DEFF Research Database (Denmark)

    Svendsen, Svend; Kragh, Jesper; Laustsen, Jacob Birck

    2005-01-01

    The paper presents a new method to set up energy performance requirements and energy classes for windows of all dimensions and configurations. The net energy gain of windows is the solar gain minus the heat loss integrated over the heating season. The net energy gain can be calculated for one...... orientation or averaged over different orientations. The averaged value may be used for energy labeling of windows of standard size. Requirements in building codes may also be based on the net energy gain instead of the thermal transmittance of the window. The size and the configuration of the window, i.......e. number of glazing units, have a very large effect on the net energy gain. Therefore the energy labeling or the requirements based on the standard size may not give valid information on the energy performance of windows of non-standard size. The paper presents a method to set up requirements and classes...

  14. Energy Efficient Content Distribution

    OpenAIRE

    Araujo J.; Giroire F.; Liu Y; Modrzejewski R.; Moulierac J.

    2016-01-01

    To optimize energy efficiency in network, operators try to switch off as many network devices as possible. Recently, there is a trend to introduce content caches as an inherent capacity of network equipment, with the objective of improving the efficiency of content distribution and reducing network congestion. In this work, we study the impact of using in-network caches and CDN cooperation on an energy-efficient routing. We formulate this problem as Energy Efficient Content Distribution. The ...

  15. Hydroponics: Content and Rationale

    Science.gov (United States)

    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…

  16. Branded content infantil

    Directory of Open Access Journals (Sweden)

    Raúl RODRÍGUEZ-FERRÁNDIZ

    2017-01-01

    Full Text Available Reseña del libro Bajo la influencia del branded content. Efectos de los contenidos de marca en niños y jóvenes. Review of the book Bajo la influencia del branded content. Efectos de los contenidos de marca en niños y jóvenes.

  17. Branded content infantil

    OpenAIRE

    Rodríguez-Ferrándiz, Raúl

    2017-01-01

    Reseña del libro Bajo la influencia del branded content. Efectos de los contenidos de marca en niños y jóvenes. Review of the book Bajo la influencia del branded content. Efectos de los contenidos de marca en niños y jóvenes.

  18. Content Analysis: Television.

    Science.gov (United States)

    Williams, Tannis MacBeth; And Others

    Content analyses of the depiction of aggression and images of reality on Canadian television were performed on 109 program tapes of top-rated Toronto programs. Content was coded in terms of global messages communicated, character portrayals, context and setting of the program, amount and nature of conflict portrayed, and detailed information on…

  19. Print advertising: vivid content

    NARCIS (Netherlands)

    Fennis, B.M.; Das, E.; Fransen, M.L.

    2012-01-01

    The present research examines the effects of vivid ad content in two types of appeal in print ads as a function of individual differences in chronically experienced vividness of visual imagery. For informational ads for a functional product, vivid ad content strongly affected individuals high in

  20. Print advertising : Vivid content

    NARCIS (Netherlands)

    Fennis, B.M.; Das, E.H.H.J.; Fransen, M.L.

    The present research examines the effects of vivid ad content in two types of appeal in print ads as a function of individual differences in chronically experienced vividness of visual imagery. For informational ads for a functional product, vivid ad content strongly affected individuals high in

  1. Social video content delivery

    CERN Document Server

    Wang, Zhi; Zhu, Wenwu

    2016-01-01

    This brief presents new architecture and strategies for distribution of social video content. A primary framework for socially-aware video delivery and a thorough overview of the possible approaches is provided. The book identifies the unique characteristics of socially-aware video access and social content propagation, revealing the design and integration of individual modules that are aimed at enhancing user experience in the social network context. The change in video content generation, propagation, and consumption for online social networks, has significantly challenged the traditional video delivery paradigm. Given the massive amount of user-generated content shared in online social networks, users are now engaged as active participants in the social ecosystem rather than as passive receivers of media content. This revolution is being driven further by the deep penetration of 3G/4G wireless networks and smart mobile devices that are seamlessly integrated with online social networking and media-sharing s...

  2. Encryption for digital content

    CERN Document Server

    Kiayias, Aggelos

    2010-01-01

    Encryption for Digital Content is an area in cryptography that is widely used in commercial productions (e.g., Blu-Ray and HD-DVDs). This book provides a comprehensive mathematical treatment of combinatorial encryption techniques used in digital content distribution systems and related attack models. A complete description of broadcast encryption with various revocation and tracing functionalities is included. ""Encryption for Digital Content"" introduces the subset cover framework (currently used in AACS, Blu-Ray and HD-DVDs,) and tracking/revocation mechanisms in various attack models. Pirat

  3. Learning Content Management Systems

    Directory of Open Access Journals (Sweden)

    Tache JURUBESCU

    2008-01-01

    Full Text Available The paper explains the evolution of e-Learning and related concepts and tools and its connection with other concepts such as Knowledge Management, Human Resources Management, Enterprise Resource Planning, and Information Technology. The paper also distinguished Learning Content Management Systems from Learning Management Systems and Content Management Systems used for general web-based content. The newest Learning Content Management System, very expensive and yet very little implemented is one of the best tools that helps us to cope with the realities of the 21st Century in what learning concerns. The debates over how beneficial one or another system is for an organization, can be driven by costs involved, efficiency envisaged, and availability of the product on the market.

  4. COVER AND CONTENTS PAGES

    OpenAIRE

    Anonymous

    1998-01-01

    Includes: Front Cover, Editorial Information, Contents Pages, Dr. Carl G. Anderson: Lifetime Achievement Award, Dr. Eldon D. Smith: Lifetime Achievement Award, Dr. Kenneth R. Tefertiller: Lifetime Achievement Award, Eduardo Segarra: 1998-99 President

  5. Contents of Presentation

    Indian Academy of Sciences (India)

    First page Back Continue Last page Graphics. Contents of Presentation. Introduction on Power Quality (PQ). PQ Definitions. PQ Standards. Causes of PQ problems. PQ Mitigation Methods. Improved Power Quality Converters. Conclusion.

  6. Tourist-created Content

    DEFF Research Database (Denmark)

    Munar, Ana Maria

    2011-01-01

    study of social media sites and destination brands, relying on qualitative research methods, content analysis and field research. Findings – Tourists are largely contributing to destination image formation, while avoiding the use of the formal elements of the brands. The most popular strategies used...... by destination management organizations exhibit some crucial weaknesses. However, a strategy based on analytics brings new opportunities for destination branding. Originality/value – The study provides an innovative analysis of tourist-created content and its impact on destination branding and presents......Purpose – The purpose of this paper is to analyze the relationship between tourists' user-generated content on the web and destination branding, as well as to discuss the online strategies used by destination management organizations. Design/methodology/approach – The research adopts an exploratory...

  7. Lead content of foodstuffs.

    Science.gov (United States)

    Mitchell, D G; Aldous, K M

    1974-05-01

    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 mug/l. or more, 37% contained 200 mug/l. or more and 12% contained 400 mug/l. lead or more. Of products in glass and aluminum containers, only 1% had lead levels in excess of 200 mug/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 mug/l. for 270 samples; for canned evaporated milk the mean level was 202 mug/l. These data indicate a potential health hazard.

  8. Factors stimulating content marketing

    Directory of Open Access Journals (Sweden)

    Naser Azad

    2016-02-01

    Full Text Available This paper presents an empirical investigation to determine factors influencing on content marketing in banking industry. The study designs a questionnaire consists of 40 questions in Likert scale and distributes it among 550 randomly selected regular customers of Bank Mellat in city of Tehran, Iran and 400 properly filled questionnaires are collected. Cronbach alphas for all components of the survey are well above desirable level. Using principle component analysis with Varimax rotation, the study has determined six factors influencing the most on content marketing including organization, details, having new ideas, quality, sensitivity and power while the last component contains only two subcomponents and is removed from the study.

  9. The Pursuit of Content.

    Science.gov (United States)

    Sturges, Paul

    1999-01-01

    Discusses library and information studies curriculum and suggests six areas that need to be addressed in addition to information access and collection development: assessing and filtering content, intermediation between the user and technology, negotiating ethical and regulatory difficulties, designing user-oriented services, managing knowledge…

  10. Loser Generated Content

    DEFF Research Database (Denmark)

    Petersen, Søren Mørk

    2008-01-01

    , is that the Internet functions as a double–edged sword; the infrastructure does foster democracy, participation, joy, creativity and sometimes creates zones of piracy. But, at the same time, it has become evident how this same infrastructure also enables companies easily to piggyback on user generated content...

  11. Video Content Foraging

    NARCIS (Netherlands)

    van Houten, Ynze; Schuurman, Jan Gerrit; Verhagen, Pleunes Willem; Enser, Peter; Kompatsiaris, Yiannis; O’Connor, Noel E.; Smeaton, Alan F.; Smeulders, Arnold W.M.

    2004-01-01

    With information systems, the real design problem is not increased access to information, but greater efficiency in finding useful information. In our approach to video content browsing, we try to match the browsing environment with human information processing structures by applying ideas from

  12. Vitamin contents of archaebacteria.

    OpenAIRE

    Noll, K M; Barber, T S

    1988-01-01

    The levels of six water-soluble vitamins of seven archaebacterial species were determined and compared with the levels found in a eubacterium, Escherichia coli. Biotin, riboflavin, pantothenic acid, nicotinic acid, pyridoxine, and lipoic acid contents of Halobacterium volcanii, Methanobacterium thermoautotrophicum delta H, "Archaeoglobus fulgidus" VC-16, Thermococcus celer, Pyrodictium occultum, Thermoproteus tenax, and Sulfolobus solfataricus were measured by using bioassays. The archaebacte...

  13. Una combinación de un algoritmo voraz con algoritmos genéticos para optimizar la producción de cartón ondulado || A Combination of a Greedy Algorithm and Genetics Algorithms to Optimize the Production of Corrugated Board

    Directory of Open Access Journals (Sweden)

    Tornadijo Rodríguez, Tomás F.

    2009-01-01

    Full Text Available En este trabajo se propone la utilización de un algoritmo genético para la optimización del corte continuo de planchas de cartón, un problema habitual en la industria cartonera, donde la minimización de mermas de materia prima y el cumplimiento de los plazos de fabricación son dos objetivos prioritarios de la planificación de la producción. Las soluciones aportadas por un algoritmo voraz se utilizan como semillas para el algoritmo genético. Se utiliza el operador de recombinación de cruce en un punto. || In this paper, we suggest a genetic algorithm for optimizing the continuous cutting of cardboard plates, a common problem in the corrugated industry,where minimizing wastage of raw materials and meeting production deadlines are two priority objectives of production planning.The solutions provided by a greedy algorithm are used as seeds for thegenetic algorithm. It uses the one-point crossover operator.

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

    Science.gov (United States)

    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…

  15. Beyond Content of Conversation.

    Science.gov (United States)

    Koudenburg, Namkje; Postmes, Tom; Gordijn, Ernestine H

    2017-02-01

    Social interaction is pivotal to the formation of social relationships and groups. Much is known about the importance of interaction content (e.g., the transfer of information). The present review concentrates on the influence of the act of conversing on the emergence of a sense of solidarity, more or less independently of the content. Micro-characteristics of the conversation (e.g., brief silences, smooth turn-taking) can profoundly influence the emergence and the regulation of relationships and of solidarity. We suggest that this might be because the form of a conversation is experienced as an expression of the social structures within the group. Because of its dynamic nature, moreover, the form of conversation provides group members with a continuous gauge of the group's structural features (e.g., its hierarchy, social norms, and shared reality). Therefore, minor changes in the form and flow of group conversation can have considerable consequences for the regulation of social structure.

  16. Digital Content Licensing

    DEFF Research Database (Denmark)

    Schwemer, Sebastian Felix

    the Digital Single Market (DSM). National and European authorities and legislators have created a host of – often industry- and sometimes business model-specific – initiatives, proposals and rules in order to facilitate the DSM and reconcile it with the territorial nature of copyright and its business......Copyright is territorial. But is the Internet? The Internet has changed the way we consume copyright-protected material. Yet, territorial segmentation of online content is a reality in the 28 EU Member States. Licensing and access practices do not reflect the digital reality, in which end......-legislative) initiatives, which support the facilitation of multi-territorial licensing and cross-border access to content. It investigates the regulation of two online markets, which have recently been subject to scrutiny by the EU institutions: the audiovisual and the music sector, both addressed by ex ante sector...

  17. Radioactive content of charcoal

    Energy Technology Data Exchange (ETDEWEB)

    Rubio Montero, M.P. [Departamento de Fisica Aplicada, University of Extremadura, Sta.Teresa de Jornet, 06800 Merida (Badajoz) (Spain)], E-mail: pilar@unex.es; Duran Valle, C.J. [Departamento de Quimica Organica e Inorganica, University of Extremadura, 06071 Badajoz (Spain); Jurado Vargas, M. [Departamento de Fisica, University of Extremadura, 06071 Badajoz (Spain); Botet Jimenez, A. [Instituto del Corcho, la Madera y el Carbon, 06800 Merida (Badajoz) (Spain)

    2009-05-15

    Coal and charcoal present similar physical and chemical characteristics. There is no standardized procedure to distinguish them. However, their differences in age and origin result in several differences in their natural radionuclide content. Moreover, charcoal can be contaminated with fallout. In this work, activity concentrations of {sup 228}Th, {sup 226}Ra, {sup 40}K, and {sup 137}Cs were determined in charcoal and coal samples in order to obtain evidence to distinguish the two kinds of sample.

  18. The content of intentions

    OpenAIRE

    Pacherie, Elisabeth

    2000-01-01

    By distinguishing between prior intentions and intentions in action, Searle has helped solve a number of difficulties confronted by the earlier versions of the causal theory of actions. Yet this distinction also raises important new issues. In particular, once a distinction is posited between two types of intentions, one must specify what the exact nature of their respective contents is and explain how the two types of intentions are connected. I suggest that in addressing those issues we cou...

  19. Determination of Fat Content

    Science.gov (United States)

    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).

  20. Content Documents Management

    Science.gov (United States)

    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!

  1. Math: Basic Skills Content Standards

    Science.gov (United States)

    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…

  2. Content Marketing Practices in Finland

    OpenAIRE

    Suuronen, Toni

    2016-01-01

    The purpose of this study is to draw attention to increasingly important business phenomenon of content marketing. This paper defines content marketing, identifies its key elements and phases, and explores content marketing practices. The theorethical part is based on Pam Didner's 4P model that describes the stages of content marketing cycle: plan, produce, promote and perfect. The empirical part of the study is based on semi-structured interviews of seasoned content marketing professionals t...

  3. Adaptive Backoff Algorithm for Contention Window for Dense IEEE 802.11 WLANs

    Directory of Open Access Journals (Sweden)

    Ikram Syed

    2016-01-01

    Full Text Available The performance improvement in IEEE 802.11 WLANs in widely fluctuating network loads is a challenging task. To improve the performance in this saturated state, we develop an adaptive backoff algorithm that maximizes the system throughput, reduces the collision probability, and maintains a high fairness for the IEEE 802.11 DCF under dense network conditions. In this paper, we present two main advantages of the proposed ABA-CW algorithm. First, it estimates the number of active stations and then calculates an optimal contention window based on the active station number. Each station calculates the channel state probabilities by observing the channel for the total backoff period. Based on these channel states probabilities, each station can estimate the number of active stations in the network, after which it calculates the optimal CW utilizing the estimated active number of stations. To evaluate the proposed mechanism, we derive an analytical model to determine the network performance. From our results, the proposed ABA-CW mechanism achieved better system performance compared to fixed-CW (BEB, EIED, LILD, and SETL and adaptive-CW (AMOCW, Idle Sense mechanisms. The simulation results confirmed the outstanding performance of the proposed mechanism in that it led to a lower collision probability, higher throughput, and high fairness.

  4. The role of content marketing in social media content communities

    National Research Council Canada - National Science Library

    Charmaine du Plessis

    2017-01-01

    Background: Content marketing has become a leading marketing technique in digital marketing communication and uses the point of view of consumers to build relationships by creating and sharing engaging content...

  5. Cognitive Content Engagement in Content-Based Language Teaching

    Science.gov (United States)

    Kong, Stella; Hoare, Philip

    2011-01-01

    This article reports a study of aspects of pedagogy that can bring about students' cognitive engagement with academic content and, thus, use of the academic language in content-based language lessons in three middle schools in Xi'an, China. Two criteria--academic content level and depth of processing--were used to determine cognitive content…

  6. Multimedia content analysis

    CERN Document Server

    Ohm, Jens

    2016-01-01

    This textbook covers the theoretical backgrounds and practical aspects of image, video and audio feature expression, e.g., color, texture, edge, shape, salient point and area, motion, 3D structure, audio/sound in time, frequency and cepstral domains, structure and melody. Up-to-date algorithms for estimation, search, classification and compact expression of feature data are described in detail. Concepts of signal decomposition (such as segmentation, source tracking and separation), as well as composition, mixing, effects, and rendering, are discussed. Numerous figures and examples help to illustrate the aspects covered. The book was developed on the basis of a graduate-level university course, and most chapters are supplemented by problem-solving exercises. The book is also a self-contained introduction both for researchers and developers of multimedia content analysis systems in industry. .

  7. Image Content Engine (ICE)

    Energy Technology Data Exchange (ETDEWEB)

    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.

  8. Free Flowing Content

    DEFF Research Database (Denmark)

    Cass, Andrew Knox; Kravchenko, Mariia

    2017-01-01

    of being recorded.This paper is the result of an action research process where researchers lookedat teachers’ embedded practices to discover hidden skillsets and content.Teachers who were intimidated by moving from the presentation style lecture tovideo based one, are focused on the process and sometimes......Higher education institutions are moving to exploit information andcommunication technologies by increasing the use of videos both online and inclass. This is led, by definition, by ‘early adopters’ and most of the research intothis process reflects this. Increasingly, institutions are making...... of the presented self and enablingparticipation in creating active learning environments. This unlocks the potentialfor whole institutions to make course and department wide moves towardsbetter classroom practice and e-learning opportunities....

  9. Real time release testing of tablet content and content uniformity.

    Science.gov (United States)

    Goodwin, Daniel J; van den Ban, Sander; Denham, Mike; Barylski, Ian

    2017-12-09

    A comprehensive commercial control strategy for tablet content and content uniformity focussed on the unit operation of compression is presented and is proposed to enable real time release for these critical quality attributes. The control strategy is based on process understanding, process control through compaction force weight control on the tablet press, periodic checks of mean and individual tablet weight combined with at-line testing of tablet content by near infrared (NIR). The application of the at-line NIR tablet content method is discussed and an acceptance criteria based on a parametric tolerance interval test (PTIT) is proposed. Sample handling limitations and spectral acquisition time for the NIR content method limit the sample size, however the chosen PTIT assures an appropriate level of batch coverage. Data are presented for ten commercial-scale batches that demonstrates the control strategy delivered the quality standard for content and content uniformity. Copyright © 2017 Elsevier B.V. All rights reserved.

  10. Digital content contracts for consumers

    NARCIS (Netherlands)

    Helberger, N.; Loos, M.B.M.; Guibault, L.; Mak, C.; Pessers, L.

    2013-01-01

    The application of consumer law to digital content contracts encounters a number of obstacles. Some of these are rather typical for digital content markets, e.g., the legal consequences of the classification of digital content as "goods" or "services" and, more importantly, the absence of general

  11. Data content standards in Africa

    CSIR Research Space (South Africa)

    Cooper, Antony K

    2005-04-01

    Full Text Available stream_source_info Cooper_2005.pdf.txt stream_content_type text/plain stream_size 109 Content-Encoding ISO-8859-1 stream_name Cooper_2005.pdf.txt Content-Type text/plain; charset=ISO-8859-1 /var...

  12. 78 FR 13876 - Content Policy

    Science.gov (United States)

    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: http://www.exim.gov/generalbankpolicies/content/2013...

  13. List of Content

    Directory of Open Access Journals (Sweden)

    Editorial IJRED

    2012-07-01

    Full Text Available CONTENTS OF ARTICLES PAGEPotency of Solar Energy Applications in Indonesia pp.33-38 N.A. Handayani and D. AriyantiThe Social Aspects and Public Acceptance of Biomass Giving the Example of aHungarian Region pp.29-43 Z. Bujdosó, C. Patkós, T. Kovács, Z. Radics and Z. BarosCultivation of Chlorella sp. as Biofuel Sources in Palm Oil Mill Effluent (POME pp. 45-49 H. Hadiyanto, M.M. Azimatun Nur, and G.D. HartantoThermodynamic Model of a Very High Efficiency Power Plant based on a BiomassGasifier, SOFCs, and a Gas Turbine pp.51-55 P.V. Aravind, C. Schilt, B. Türker, and T. WoudstraBiodiesel Production from Rubber Seed Oil via Esterification Process pp. 57-60 W. Widayat and S. SuhermanBiogas Production from Cow Manure pp.61-64 D.A. Putri, R.R. Saputro, and Budiyono

  14. List of Content

    Directory of Open Access Journals (Sweden)

    IJRED Editorial

    2013-02-01

    Full Text Available CONTENTS OF ARTICLES PAGEPassive Design of Buildings for Extreme Weather EnvironmentS.N. Al-Zubaidy, S. Tokbolat, R. Tokpatayeva 1-11 Economic Impact of CDM Implementation through Alternate Energy Resource SubstitutionK.J. Sreekanth, S. Jayaraj, N. Sudarsan 13-18 Implications of Charcoal Briquette Produced by Local Communities on Livelihoods and Environment in Nairobi KenyaMary Njenga, A Yonemitsu, N Karanjaa, M Iiyama, J Kithinji, M Dubbeling C Sundberge, R R Jamnadass 19-29 A Novel Design of Multi-Chambered Biomass BatteryK. Sudhakar, R. Ananthakrishnan, A. Goyal, H.K. Darji 31-34 Power Quality Improvement Wind Energy System Using Cascaded Multilevel InverterJ.S. Sathiyanarayanan, A. S. Kumar 35-43 Solar PV Lighting and Studying after Sunset: Analysis of Micro-benefits in Off-grid Rural GhanaGeorge Y. Obeng 45-51 Innovative Green Technology for Sustainable Industrial Estate DevelopmentR. Hadiwijoyo, P Purwanto, Sudharto P Hadi 53-58 Empowering Distributed Solar PV Energy For Malaysian Rural Housing: Towards Energy Security And Equitability Of Rural CommunitiesN.A. Ahmad, H. Byrd 59-68

  15. Content validity and its estimation

    Directory of Open Access Journals (Sweden)

    Yaghmale F

    2003-04-01

    Full Text Available Background: Measuring content validity of instruments are important. This type of validity can help to ensure construct validity and give confidence to the readers and researchers about instruments. content validity refers to the degree that the instrument covers the content that it is supposed to measure. For content validity two judgments are necessary: the measurable extent of each item for defining the traits and the set of items that represents all aspects of the traits. Purpose: To develop a content valid scale for assessing experience with computer usage. Methods: First a review of 2 volumes of International Journal of Nursing Studies, was conducted with onlyI article out of 13 which documented content validity did so by a 4-point content validity index (CV! and the judgment of 3 experts. Then a scale with 38 items was developed. The experts were asked to rate each item based on relevance, clarity, simplicity and ambiguity on the four-point scale. Content Validity Index (CVI for each item was determined. Result: Of 38 items, those with CVIover 0.75 remained and the rest were discarded reSulting to 25-item scale. Conclusion: Although documenting content validity of an instrument may seem expensive in terms of time and human resources, its importance warrants greater attention when a valid assessment instrument is to be developed. Keywords: Content Validity, Measuring Content Validity

  16. The role of content marketing in social media content communities

    National Research Council Canada - National Science Library

    Charmaine du Plessis

    2017-01-01

    ... in social media that enhance their daily lives. Existing research on social media communities has focused mainly on social media marketing and virtual brand community perspectives while content...

  17. List of Article Contents

    Directory of Open Access Journals (Sweden)

    Editorial Section

    2014-12-01

    Full Text Available CONTENTS OF ARTICLES Premixed combustion of coconut oil in a hele-shaw cell DOI: 10.14710/ijred.3.3.155-160 155-160 Hadi Saroso, I.N.G. Wardana, Rudy Soenoko, Nurkholis Hamidi   Analysing the potential of retrofitting ultra-low heat loss triple vacuum glazed windows to an existing UK solid wall dwelling DOI: 10.14710/ijred.3.3.161-174 161-174 Saim Memon   Study of Gasohol as Alternative Fuel for Gasoline Substitution: Characteristics and Performances DOI: 10.14710/ijred.3.3.175-183 175-183 Bardi Murachman, Dicky Pranantyo, Eddie Sandjaya Putra   Thermal effects investigation on electrical properties of silicon solar cells treated by laser irradiation DOI: 10.14710/ijred.3.3.184-187 184-187 Ali Pourakbar Saffar, Bahman Deldadeh Barani   Synthesis of Trimethylolpropane Esters of Calophyllum Methyl Esters : Effect of Temperatur and Molar Ratio DOI: 10.14710/ijred.3.3.188-192 188-192 Yeti Widyawati, Ani Suryani, Muhammad Romli, Sukardi Sukardi   Incorporating Root Crops under Agro-Forestry as the Newly Potential Source of Food, Feed and Renewable Energy DOI: 10.14710/ijred.3.3.193-206 193-206 Yudi Widodo, St. A. Rahayuningsih, Nasir Saleh, Sri Wahyuningsih   Solmap: Project In India's Solar Resource Assessment DOI: 10.14710/ijred.3.3.207-216 207-216 Indradip Mitra, Kaushal Chhatbar, Ashvini Kumar, Godugunur Giridhar, Ramdhan Vashistha, Richard Meyer, Marko Schwandt   Thermo-economic Optimization of Solar Assisted Heating and Cooling (SAHC System DOI: 10.14710/ijred.3.3.217-227 217-227 A. Ghafoor, A. Munir   Combustion characteristics of diesel engine using producer gas and blends of Jatropha methyl ester with diesel in mixed fuel mode DOI: 10.14710/ijred.3.3.228-235 228-235 Hifjur Raheman, Debasish Padhee    

  18. List of Content

    Directory of Open Access Journals (Sweden)

    Editor IJRED

    2014-05-01

    Full Text Available CONTENTS OF ARTICLES page Tin (II Chloride Catalyzed Esterification of High FFA Jatropha Oil: Experimental and Kinetics Study DOI: 10.14710/ijred.3.2.75-81 75-81 Ratna Dewi Kusumaningtyas, Prima Astuti Handayani, Rochmadi Rochmadi, Suryo Purwono, Arief Budiman   Utilization of Iles-Iles and Sorghum Starch for Bioethanol Production DOI: 10.14710/ijred.3.2.83-89 83-89 Kusmiyati Kusmiyati, Agus Sulistiyono   Premixed Combustion of Kapok (ceiba pentandra seed oil on Perforated Burner DOI: 10.14710/ijred.3.2.91-97 91-97 I.K.G. Wirawan, I.N.G. Wardana,        Rudy Soenoko, Slamet Wahyudi   Castor Seed from Melkasa Agricultural Research Centre, East Showa, Ethiopia and it’s biodiesel performance in Four Stroke Diesel Engine DOI: 10.14710/ijred.3. 3.2.99-105 99-105 Tesfahun Tegegne Akanawa, Haimanot Gebrehiwot Moges, Ramesh Babu, Daniel Bisrat   Economic feasibility of large scale PV water pumping applications utilizing real field data for a case study in Jordan DOI: 10.14710/ijred.3.2.107-117 107-117 Ibrahim Odeh   Development of Briquette from Coir Dust and Rice Husk Blend: An Alternative Energy Source DOI: 10.14710/ijred.3.2.119-123 119-123 Md. Hamidul Islam, Md. Mosharraf Hossain,Md. Abdul Momin   Performance, Emissions and Combustion Characteristics of a Single Cylinder Diesel Engine Fuelled with Blends of Jatropha Methyl Ester and Diesel DOI: 10.14710/ijred.3.2.125-131 125-131 Debasish Padhee, Hifjur Raheman   The characteristic changes of betung bamboo (Dendrocalamus asper pretreated by fungal pretreatment DOI: 10.14710/ijred.3.2.133-143 133-143 Widya Fatriasari, Wasrin Syafii, Nyoman J Wistara, Khaswar Syamsu, Bambang Prasetya   Influence of the Determination Methods of K and C Parameters on the Ability of Weibull Distribution to Suitably Estimate Wind Potential and Electric Energy DOI: 10.14710/ijred.3.2.145-154 145-154 Ruben M. Mouangue, Myrin Y. Kazet, Alexis Kuitche, Jean-Marie Ndjaka    

  19. Standards-based Content Resources: A Prerequisite for Content Integration and Content Interoperability

    Directory of Open Access Journals (Sweden)

    Christian Galinski

    2010-05-01

    Full Text Available Objective: to show how standards-based approaches for content standardization, content management, content related services and tools as well as the respective certification systems not only guarantee reliable content integration and content interoperability, but also are of particular benefit to people with special needs in eAccessibility/eInclusion. Method: document MoU/MG/05 N0221 ''Semantic Interoperability and the need for a coherent policy for a framework of distributed, possibly federated repositories for all kinds of content items on a world-wide scale''2, which was adopted in 2005, was a first step towards the formulation of global interoperability requirements for structured content. These requirements -based on advanced terminological principles- were taken up in EU-projects such as IN-SAFETY (INfrastructure and SAFETY and OASIS (Open architecture for Accessible Services Integration and Standardization. Results: Content integration and content interoperability are key concepts in connection with the emergence of state-of-the-art distributed and federated databases/repositories of structured content. Given the fact that linguistic content items are increasingly combined with or embedded in non-linguistic content items (and vice versa, a systemic and generic approach to data modelling and content management has become the order of the day. Fulfilling the requirements of capability for multilinguality and multimodality, based on open standards makes software and database design fit for eAccessibility/eInclusion from the outset. It also makes structured content capable for global content integration and content interoperability, because it enhances its potential for being re-used and re-purposed in totally different eApplications. Such content as well as the methods, tools and services applied can be subject to new kinds of certification schemes which also should be based on standards. Conclusions: Content must be totally reliable in some

  20. Webizing mobile augmented reality content

    Science.gov (United States)

    Ahn, Sangchul; Ko, Heedong; Yoo, Byounghyun

    2014-01-01

    This paper presents a content structure for building mobile augmented reality (AR) applications in HTML5 to achieve a clean separation of the mobile AR content and the application logic for scaling as on the Web. We propose that the content structure contains the physical world as well as virtual assets for mobile AR applications as document object model (DOM) elements and that their behaviour and user interactions are controlled through DOM events by representing objects and places with a uniform resource identifier. Our content structure enables mobile AR applications to be seamlessly developed as normal HTML documents under the current Web eco-system.

  1. Understanding Content-and-Structure

    NARCIS (Netherlands)

    Kamps, J.; Marx, M.J.; de Rijke, M.; Sigurbjörnsson, B.; Trotman, A.; Lalmas, M.; Fuhr, N.

    2005-01-01

    Document-centric XML is a mixture of text and structure. +With the increased availability of document-centric XML content comes a need for query facilities in which both structural constraints and constraints on the content of the documents can be expressed. This has generated considerable interest

  2. Statistical Model for Content Extraction

    DEFF Research Database (Denmark)

    Qureshi, Pir Abdul Rasool; Memon, Nasrullah

    2011-01-01

    We present a statistical model for content extraction from HTML documents. The model operates on Document Object Model (DOM) tree of the corresponding HTML document. It evaluates each tree node and associated statistical features to predict significance of the node towards overall content...

  3. North Dakota Drama Content Standards.

    Science.gov (United States)

    Kalinowski, Roger; Lindekugel-Willis, Paula; Nilsen, Cheryl; Opp, Dean; Rauschenberger, Paula

    This document outlines the content standards for drama in North Dakota public schools, grades K-12. Following an introduction, the document lists the drama content standards: (1) Dramatic Literature; (2) Acting; (3) Production; (4) Cultural Context of Drama; (5) Consumer of Theatre; (6) Drama and Human Development; and (7) Drama and Other…

  4. Moisture content measurement in paddy

    Science.gov (United States)

    Klomklao, P.; Kuntinugunetanon, S.; Wongkokua, W.

    2017-09-01

    Moisture content is an important quantity for agriculture product, especially in paddy. In principle, the moisture content can be measured by a gravimetric method which is a direct method. However, the gravimetric method is time-consuming. There are indirect methods such as resistance and capacitance methods. In this work, we developed an indirect method based on a 555 integrated circuit timer. The moisture content sensor was capacitive parallel plates using the dielectric constant property of the moisture. The instrument generated the output frequency that depended on the capacitance of the sensor. We fitted a linear relation between periods and moisture contents. The measurement results have a standard uncertainty of 1.23 % of the moisture content in the range of 14 % to 20 %.

  5. Evolution of broadcast content distribution

    CERN Document Server

    Beutler, Roland

    2017-01-01

    This book discusses opportunities for broadcasters that arise with the advent of broadband networks, both fixed and mobile. It discusses how the traditional way of distributing audio-visual content over broadcasting networks has been complemented by the usage of broadband networks. The author shows how this also gives the possibility to offer new types of interactive or so-called nonlinear services. The book illustrates how change in distribution technology is accelerating the need for broadcasters around the world to adapt their content distribution strategy and how it will impact the portfolios of content they offer. Outlines the shift in broadcast content distribution paradigms and related strategic issues Provides an overview of the new broadcasting ecosystem encompassing new types of content, user habits, expectations, and devices Discusses complementary usage of different distribution technologies and platforms.

  6. A Serendipity-Oriented Greedy Algorithm for Recommendations

    OpenAIRE

    Kotkov, Denis; Veijalainen, Jari; Wang, Shuaiqiang

    2017-01-01

    Most recommender systems suggest items to a user that are popular among all users and similar to items the user usually consumes. As a result, a user receives recommendations that she/he is already familiar with or would find anyway, leading to low satisfaction. To overcome this problem, a recommender system should suggest novel, relevant and unexpected, i.e. serendipitous items. In this paper, we propose a serendipity-oriented algorithm, which improves serendipity through feature diversifica...

  7. Collective navigation of complex networks: Participatory greedy routing

    CERN Document Server

    Kleineberg, Kaj-Kolja

    2016-01-01

    Many networks are used to transfer information or goods, in other words, they are navigated. The larger the network, the more difficult it is to navigate efficiently. Indeed, information routing in the Internet faces serious scalability problems due to its rapid growth, recently accelerated by the rise of the Internet of Things. Large networks like the Internet can be navigated efficiently if nodes, or agents, actively forward information based on hidden maps underlying these systems. However, in reality most agents will deny to forward messages, which has a cost, and navigation is impossible. Can we design appropriate incentives that lead to participation and global navigability? Here, we present an evolutionary game where agents share the value generated by successful delivery of information or goods. We show that global navigability can emerge, but its complete breakdown is possible as well. Furthermore, we show that the system tends to self-organize into local clusters of agents who participate in the nav...

  8. Greedy algorithm with weights for decision tree construction

    KAUST Repository

    Moshkov, Mikhail

    2010-12-01

    An approximate algorithm for minimization of weighted depth of decision trees is considered. A bound on accuracy of this algorithm is obtained which is unimprovable in general case. Under some natural assumptions on the class NP, the considered algorithm is close (from the point of view of accuracy) to best polynomial approximate algorithms for minimization of weighted depth of decision trees.

  9. Behavior of greedy sparse representation algorithms on nested supports

    DEFF Research Database (Denmark)

    Mailhé, Boris; Sturm, Bob L.; Plumbley, Mark

    2013-01-01

    We study the links between recovery properties of Orthogonal Matching Pursuit (OMP) and the whole General MP class for sparse signals with nested supports, i.e., supports that share an inclusion relationship. In particular, we show that the support recovery optimality of those algorithms is not l...

  10. Collective navigation of complex networks: Participatory greedy routing.

    Science.gov (United States)

    Kleineberg, Kaj-Kolja; Helbing, Dirk

    2017-06-06

    Many networks are used to transfer information or goods, in other words, they are navigated. The larger the network, the more difficult it is to navigate efficiently. Indeed, information routing in the Internet faces serious scalability problems due to its rapid growth, recently accelerated by the rise of the Internet of Things. Large networks like the Internet can be navigated efficiently if nodes, or agents, actively forward information based on hidden maps underlying these systems. However, in reality most agents will deny to forward messages, which has a cost, and navigation is impossible. Can we design appropriate incentives that lead to participation and global navigability? Here, we present an evolutionary game where agents share the value generated by successful delivery of information or goods. We show that global navigability can emerge, but its complete breakdown is possible as well. Furthermore, we show that the system tends to self-organize into local clusters of agents who participate in the navigation. This organizational principle can be exploited to favor the emergence of global navigability in the system.

  11. Greedy Local Search and Vertex Cover in Sparse Random Graphs

    DEFF Research Database (Denmark)

    Witt, Carsten

    2009-01-01

    finds an optimal cover in polynomial time with a probability arbitrarily close to 1. This behavior relies on the absence of a giant component. As an additional insight into the randomized search, it is shown that the heuristic fails badly also on graphs consisting of a single tree component of maximum......Recently, various randomized search heuristics have been studied for the solution of the minimum vertex cover problem, in particular for sparse random instances according to the G(n, c/n) model, where c > 0 is a constant. Methods from statistical physics suggest that the problem is easy if c .... This work starts with a rigorous explanation for this claim based on the refined analysis of the Karp-Sipser algorithm by Aronson et al. Subsequently, theoretical supplements are given to experimental studies of search heuristics on random graphs. For c search heuristic...

  12. A simple greedy algorithm for dynamic graph orientation

    DEFF Research Database (Denmark)

    Berglin, Edvin; Brodal, Gerth Stølting

    2017-01-01

    raph orientations with low out-degree are one of several ways to efficiently store sparse graphs. If the graphs are dynamic, i.e. allow for insertion and deletion of edges, one may have to flip the orientation of some edges to prevent blowing up the maximum out-degree. We use arboricity as our sp...... is either constant or super-logarithmic. We also match a previous best amortized algorithm for at least logarithmic arboricity, and give the first results with worst-case √ O(1) and O( log n) flips respectively....

  13. A simple greedy algorithm for dynamic graph orientation

    DEFF Research Database (Denmark)

    Berglin, Edvin; Brodal, Gerth Stølting

    2017-01-01

    Graph orientations with low out-degree are one of several ways to efficiently store sparse graphs. If the graphs allow for insertion and deletion of edges, one may have to flip the orientation of some edges to prevent blowing up the maximum out-degree. We use arboricity as our sparsity measure...

  14. Face sketch synthesis via sparse representation-based greedy search.

    Science.gov (United States)

    Shengchuan Zhang; Xinbo Gao; Nannan Wang; Jie Li; Mingjin Zhang

    2015-08-01

    Face sketch synthesis has wide applications in digital entertainment and law enforcement. Although there is much research on face sketch synthesis, most existing algorithms cannot handle some nonfacial factors, such as hair style, hairpins, and glasses if these factors are excluded in the training set. In addition, previous methods only work on well controlled conditions and fail on images with different backgrounds and sizes as the training set. To this end, this paper presents a novel method that combines both the similarity between different image patches and prior knowledge to synthesize face sketches. Given training photo-sketch pairs, the proposed method learns a photo patch feature dictionary from the training photo patches and replaces the photo patches with their sparse coefficients during the searching process. For a test photo patch, we first obtain its sparse coefficient via the learnt dictionary and then search its nearest neighbors (candidate patches) in the whole training photo patches with sparse coefficients. After purifying the nearest neighbors with prior knowledge, the final sketch corresponding to the test photo can be obtained by Bayesian inference. The contributions of this paper are as follows: 1) we relax the nearest neighbor search area from local region to the whole image without too much time consuming and 2) our method can produce nonfacial factors that are not contained in the training set and is robust against image backgrounds and can even ignore the alignment and image size aspects of test photos. Our experimental results show that the proposed method outperforms several state-of-the-arts in terms of perceptual and objective metrics.

  15. Greedy heuristics for determining a product family bill of materials

    OpenAIRE

    El Hadj Khalaf, Radwan; Agard, Bruno; PENZ, Bernard

    2008-01-01

    International audience; When designing a new product family, designers and manufacturers have to define simultaneously the product structure and its supply chain. This leads to a complex optimization problem to solve in order to satisfy diversified customers' requirements with various options and variants. The paper focuses on the first step of this design problem. It consists in selecting a set of modules that will be manufactured in distant facilities and shipped in a nearby location plant ...

  16. Convergence Rates for Greedy Algorithms in Reduced Basis Methods (PREPRINT)

    Science.gov (United States)

    2010-10-04

    the projector onto Fn, then for any f ∈ F , we denote by σn(f) := ‖f − Pnf ‖ its error of best approximation in Fn. We define σn := σn(F) := max f∈F...has been shown to become practically feasible in the context of (1.1) (see e.g. [5]) when replacing the error ‖f− Pnf ‖ by a surrogate rn(f) satisfying...crrn(f) ≤ ‖f − Pnf ‖ ≤ Crrn(f), f ∈ H, (1.5) for some fixed constants cr, Cr. In fact, in the context of (1.1), one can find surrogates satisfying (1.5

  17. Parallel greedy graph matching using an edge partitioning approach

    NARCIS (Netherlands)

    Patwary, M.M.A.; Bisseling, R.H.; Manne, F.

    2010-01-01

    We present a parallel version of the Karp-Sipser graph matching heuristic for the maximum cardinality problem. It is bulksynchronous, separating computation and communication, and uses an edge-based partitioning of the graph, translated from a twodimensional partitioning of the corresponding

  18. Visual Analysis of Weblog Content

    Energy Technology Data Exchange (ETDEWEB)

    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.

  19. Web content a writer's guide

    CERN Document Server

    Mizrahi, Janet

    2013-01-01

    The explosion of electronic sources, whether in the form of news, commentary, sales and marketing, or information, has created boundless opportunities for producing content. Whether you're an entrepreneur with a start-up business who needs a website, an executive who uses social media to connect with various stakeholders, or a content provider blogging about topical issues, you'll need to know how to write for the web and address the unique environment of the digital world. This book will help you produce web content that generates results. Writing for the screen differs from writing for a pri

  20. Content Literacy: A Definition and Implications.

    Science.gov (United States)

    McKenna, Michael C.; Robinson, Richard D.

    1990-01-01

    Defines "content literacy" as the ability to use reading and writing for the acquisition of new content in a given discipline. Identifies three principal cognitive components: general literacy skills; content-specific literacy skills; and prior knowledge of content. Discusses the implications of content literacy for content area reading…

  1. Satellite Ocean Heat Content Suite

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This collection contains an operational Satellite Ocean Heat Content Suite (SOHCS) product generated by NOAA National Environmental Satellite, Data, and Information...

  2. [Exploring dream contents by neuroimaging].

    Science.gov (United States)

    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.

  3. Marketing engagement through visual content

    National Research Council Canada - National Science Library

    Marius Manic

    2015-01-01

      Engaging visual is a must in the modern marketing world. Wide access to mass communication devices, with extended visuals enhancements, made visual content an important point of interest for any publisher, on all media channels...

  4. Global Content in Global Coursebooks

    Directory of Open Access Journals (Sweden)

    Mimoun Melliti

    2013-10-01

    Full Text Available This study aims at exploring the issue of “globality” in global coursebooks as manifested in investing features of connectedness, avoiding inappropriacy, and preserving inclusivity. To do this exploration, two research methods, content analysis and the questionnaire, were adopted. The content of an example of global coursebooks, Headway Intermediate (H/I, in addition to the perception of 251 of its users at Institute Bourguiba for Living Languages (IBLV were investigated. The results obtained revealed that “globality,” in terms of connectedness, inappropriacy, and inclusivity is partial in H/I as learners’ perceptions of it do not map with the content in the coursebook. This study raises questions about the suitability of global coursebooks to globally diverse learners and reveals the necessity of taking measures in the direction of localizing the content of English as a foreign language (EFL coursebooks.

  5. Enhanced Contention Resolution Aloha - ECRA

    OpenAIRE

    Clazzer, Federico; Kissling, Christian

    2012-01-01

    Random Access (RA) Medium Access (MAC) protocols are simple and effective when the nature of the traffic is unpredictable and random. In the following paper, a novel RA protocol called Enhanced Contention Resolution ALOHA (ECRA) is presented. This evolution, based on the previous Contention Resolution ALOHA (CRA) protocol, exploits the nature of the interference in unslotted Aloha-like channels for trying to resolve most of the partial collision that can occur there. I...

  6. Marketing engagement through visual content

    OpenAIRE

    Marius MANIC

    2015-01-01

    Engaging visual is a must in the modern marketing world. Wide access to mass communication devices, with extended visuals enhancements, made visual content an important point of interest for any publisher, on all media channels. The decreasing costs and huge variety of types are premises for an easy and effective marketing investment, with strong benefits for any company and its brands. Loyal customers are achieved and kept through visual content; the lack of it in the general ...

  7. Marketing engagement through visual content

    Directory of Open Access Journals (Sweden)

    Marius MANIC

    2015-12-01

    Full Text Available Engaging visual is a must in the modern marketing world. Wide access to mass communication devices, with extended visuals enhancements, made visual content an important point of interest for any publisher, on all media channels. The decreasing costs and huge variety of types are premises for an easy and effective marketing investment, with strong benefits for any company and its brands. Loyal customers are achieved and kept through visual content; the lack of it in the general marketing

  8. Contents

    OpenAIRE

    2015-01-01

    Yayın Kurulu: Prof.Dr. Uğur ALPAGUT Prof.Dr. Murat ALTUN Prof.Dr. Yasemin AYDOĞAN Prof.Dr. Cemal AVCI Prof.Dr. Soner DURMUŞ Prof.Dr. Nesrin KALYONCU Prof.Dr. Metin ORBAY Prof.Dr. Murat ÖZBAY Prof.Dr. Mehmet TAŞPINAR Doç.Dr. Türkan ARGON Doç.Dr. Zeki ARSAL Doç.Dr. Bayram BIÇAK Doç.Dr. Bahri AYDIN Doç.Dr. Mehmet CANBULAT Doç.Dr. Eyüp COŞKUN Doç.Dr. Nihal DOĞAN Doç.Dr. Tolga ERDOĞAN Doç.Dr. Halit KARATAY Doç.Dr. Kemalettin KUZUCU Doç.Dr. Salih Paşa MEMİŞOĞLU Doç.Dr. Şenay Se...

  9. Contents

    OpenAIRE

    2015-01-01

    Yayın Kurulu: Prof.Dr. Uğur ALPAGUT Prof.Dr. Murat ALTUN Prof.Dr. Yasemin AYDOĞAN Prof.Dr. Cemal AVCI Prof.Dr. Soner DURMUŞ Prof.Dr. Nesrin KALYONCU Prof.Dr. Metin ORBAY Prof.Dr. Murat ÖZBAY Prof.Dr. Mehmet TAŞPINAR Doç.Dr. Türkan ARGON Doç.Dr. Zeki ARSAL Doç.Dr. Bayram BIÇAK Doç.Dr. Sefa BULUT Doç.Dr. Mehmet CANBULAT Doç.Dr. Eyüp COŞKUN Doç.Dr. Nihal DOĞAN Doç.Dr. Tolga ERDOĞAN Doç.Dr. Halit KARATAY Doç.Dr. Kemalettin KUZUCU Doç.Dr. Salih Paşa MEMİŞOĞLU...

  10. Safeguarding Digital Library Contents: Charging for Online Content.

    Science.gov (United States)

    Herzberg, Amir

    1998-01-01

    Investigates the need for mechanisms for charging by digital libraries and other providers of online content, in particular for micropayments, i.e., charging for small amounts. The SSL (Secure Socket Layer) and SET (Secure Electronic Transactions) protocols for charge card payments and the MiniPay micropayment mechanism for charging small amounts…

  11. Learning Language through Content: Learning Content through Language.

    Science.gov (United States)

    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…

  12. Hybrid Model of Content Extraction

    DEFF Research Database (Denmark)

    Qureshi, Pir Abdul Rasool; Memon, Nasrullah

    2012-01-01

    We present a hybrid model for content extraction from HTML documents. The model operates on Document Object Model (DOM) tree of the corresponding HTML document. It evaluates each tree node and associated statistical features like link density and text distribution across the node to predict...... model outperformed other existing content extraction models. We present a browser based implementation of the proposed model as proof of concept and compare the implementation strategy with various state of art implementations. We also discuss various applications of the proposed model with special...

  13. Content Themes in Marital Conversations.

    Science.gov (United States)

    Sillars, Alan L.; And Others

    1987-01-01

    Suggests that prominent themes in the conversations of spouses are metacommunication about relationships. Compares content themes of different marital types (traditional, separate, and independent) and more or less satisfied spouses. Finds marital satisfaction tends to be positively associated with communal and impersonal themes and negatively…

  14. Quality Content in Distance Education

    Science.gov (United States)

    Yildiz, Ezgi Pelin; Isman, Aytekin

    2016-01-01

    In parallel with technological advances in today's world of education activities can be conducted without the constraints of time and space. One of the most important of these activities is distance education. The success of the distance education is possible with content quality. The proliferation of e-learning environment has brought a need for…

  15. Place prioritization for biodiversity content

    Indian Academy of Sciences (India)

    The prioritization of places on the basis of biodiversity content is part of any systematic biodiversity conservation planning process. The place prioritization procedure implemented in the ResNet software package is described. This procedure is primarily based on the principles of rarity and complementarity. Application of the ...

  16. Pedagogical Content Knowledge of Sustainability

    Science.gov (United States)

    Singer-Brodowski, Mandy

    2017-01-01

    Purpose: This paper's purpose is to describe students' learning processes in a project-based and self-organized seminar on sustainability. A detailed knowledge of typical learning processes is part of a pedagogical content knowledge of sustainability and can therefore contribute to the professional development of university educators.…

  17. A Content Analysis of Internet Health Rumors

    National Research Council Canada - National Science Library

    Wen-Ling Lo; Ming-Hsin Phoebe Chiu

    2015-01-01

    This study used content analysis method to investigate Internet health rumors on Rumor Breaker, specifically on the characteristics of content and format, the similarities and differences by themes...

  18. Content Analysis of HUMINT Reports

    Science.gov (United States)

    2006-06-01

    11.1.2006). KIEForschungsinstitut für Kommunikation , Informationsverarbeitung und ErgonomieFGAN Dr. M. Hecking Dr. Matthias Hecking...Forschungsgesellschaft für Angewandte Naturwissenschaften e.V. (FGAN) Forschungsinstitut für Kommunikation , Informationsverarbeitung und Ergonomie (FKIE) Abtl...KIEForschungsinstitut für Kommunikation , Informationsverarbeitung und ErgonomieFGAN Dr. M. HeckingContent 1. Introduction 2. Information Extraction 3. Project

  19. Political bias: a content analysis

    OpenAIRE

    Jarochová, Erika

    2015-01-01

    This thesis aims to chart political bias in the news coverage during the election campaigns in years 2006, 2010 and 2013 in three the most widely read serious newspapers in the Czech Republic. The thesis summarizes theoretical framework of political bias. Newspapers in liberal-democratic countries should inform about political parties balanced. Content analysis was used to analyze the newspapers. This thesis compares the information balance in newspapers from several perspectives. It compares...

  20. Detecting Malicious Content on Facebook

    OpenAIRE

    Dewan, Prateek; Kumaraguru, Ponnurangam

    2015-01-01

    Online Social Networks (OSNs) witness a rise in user activity whenever an event takes place. Malicious entities exploit this spur in user-engagement levels to spread malicious content that compromises system reputation and degrades user experience. It also generates revenue from advertisements, clicks, etc. for the malicious entities. Facebook, the world's biggest social network, is no exception and has recently been reported to face much abuse through scams and other type of malicious conten...

  1. Content, Context & Connectivity Persuasive Interplay

    DEFF Research Database (Denmark)

    Sørensen, Christian Grund

    2013-01-01

    The aim of this paper is to discuss the relationship between content, context and connectivity and suggesting a model of Dynamic Interplay. This is done in relation to a specific learning environment concerning cultural mediation, in casu the Kaj Munk Case of the EuroPLOT-project (an EU-supported......The aim of this paper is to discuss the relationship between content, context and connectivity and suggesting a model of Dynamic Interplay. This is done in relation to a specific learning environment concerning cultural mediation, in casu the Kaj Munk Case of the EuroPLOT-project (an EU......-supported research project under EACEA). In the development of this project several categories of content have been implemented in technology enhanced learning tools. These have been designed to support learning in different contexts and eventually the role of the connectivity of these learning objects and tools...... is discussed. Focus is here on The Kaj Munk Study Edition, The Conceptual Pond, Immersive Layers Design, and Generative Learning Objects (GLOs) which are applications affiliated with the Munk case. This paper explores the persuasive potential of the interplay between the different applications for the benefit...

  2. 27 CFR 4.36 - Alcoholic content.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Alcoholic content. 4.36... Alcoholic content. (a) Alcoholic content shall be stated in the case of wines containing more than 14..., either the type designation “table” wine (“light” wine) or the alcoholic content shall be stated. Any...

  3. Facilitating personal content management in smart phones

    NARCIS (Netherlands)

    Aaltonen, Antti

    2007-01-01

    Smart phones, which combine, e.g., communication and mobile multimedia features, store increasing amount of media content and so they face content management challenges similar to what desktop computers are experiencing. Content management refers to actions performed on content (e.g., capture image,

  4. Heavy Sexual Content Versus Safer Sex Content: A Content Analysis of the Entertainment Education Drama Shuga.

    Science.gov (United States)

    Booker, Nancy Achieng'; Miller, Ann Neville; Ngure, Peter

    2016-12-01

    Extremely popular with Kenyan youth, the entertainment-education drama Shuga was designed with specific goals of promoting condom use, single versus multiple sexual partners, and destigmatization of HIV. Almost as soon as it aired, however, it generated controversy due to its extensive sexual themes and relatively explicit portrayal of sexual issues. To determine how safer sex, antistigma messages, and overall sexual content were integrated into Shuga, we conducted a content analysis. Results indicated that condom use and HIV destigmatization messages were frequently and clearly communicated. Negative consequences for risky sexual behavior were communicated over the course of the entire series. Messages about multiple concurrent partnerships were not evident. In addition, in terms of scenes per hour of programming, Shuga had 10.3 times the amount of sexual content overall, 8.2 times the amount of sexual talk, 17.8 times the amount of sexual behavior, and 9.4 times the amount of sexual intercourse as found in previous analysis of U.S. entertainment programming. Research is needed to determine how these factors may interact to influence adolescent viewers of entertainment education dramas.

  5. Caffeine content of decaffeinated coffee.

    Science.gov (United States)

    McCusker, Rachel R; Fuehrlein, Brian; Goldberger, Bruce A; Gold, Mark S; Cone, Edward J

    2006-10-01

    Caffeine is the most widely consumed drug in the world with coffee representing a major source of intake. Despite widespread availability, various medical conditions necessitate caffeine-restricted diets. Patients on certain prescription medications are advised to discontinue caffeine intake. Such admonition has implications for certain psychiatric patients because of pharmacokinetic interactions between caffeine and certain anti-anxiety drugs. In an effort to abstain from caffeine, patients may substitute decaffeinated for caffeinated coffee. However, decaffeinated beverages are known to contain caffeine in varying amounts. The present study determined the caffeine content in a variety of decaffeinated coffee drinks. In phase 1 of the study, 10 decaffeinated samples were collected from different coffee establishments. In phase 2 of the study, Starbucks espresso decaffeinated (N=6) and Starbucks brewed decaffeinated coffee (N=6) samples were collected from the same outlet to evaluate variability of caffeine content of the same drink. The 10 decaffeinated coffee samples from different outlets contained caffeine in the range of 0-13.9 mg/16-oz serving. The caffeine content for the Starbucks espresso and the Starbucks brewed samples collected from the same outlet were 3.0-15.8 mg/shot and 12.0-13.4 mg/16-oz serving, respectively. Patients vulnerable to caffeine effects should be advised that caffeine may be present in coffees purported to be decaffeinated. Further research is warranted on the potential deleterious effects of consumption of "decaffeinated" coffee that contains caffeine on caffeine-restricted patients. Additionally, further exploration is merited for the possible physical dependence potential of low doses of caffeine such as those concentrations found in decaffeinated coffee.

  6. [Ochratoxin A content in blood].

    Science.gov (United States)

    Aksenov, I V; ELler, K I; Tutel'ian, V A

    2007-01-01

    The purpose of this study was to investigate the ochratoxin A content in blood plasma. The analysis of ochratoxin A were performed by immunoaffinity column clean-up and HPLC with fluorescence detection. The detection limit was 0.05 microg/l. Ochratoxin A was detected in all of 50 plasma samples up to 7.44 microg/l. Mean level was 1.54 microg/l. Ochratoxin A level was higher in men than in women and in August than in December. Calculations made on the basis of the obtained mean showed that the daily ochratoxin A dietary intake awere 3.03 ng/kg b.w.

  7. Error image aware content restoration

    Science.gov (United States)

    Choi, Sungwoo; Lee, Moonsik; Jung, Byunghee

    2015-12-01

    As the resolution of TV significantly increased, content consumers have become increasingly sensitive to the subtlest defect in TV contents. This rising standard in quality demanded by consumers has posed a new challenge in today's context where the tape-based process has transitioned to the file-based process: the transition necessitated digitalizing old archives, a process which inevitably produces errors such as disordered pixel blocks, scattered white noise, or totally missing pixels. Unsurprisingly, detecting and fixing such errors require a substantial amount of time and human labor to meet the standard demanded by today's consumers. In this paper, we introduce a novel, automated error restoration algorithm which can be applied to different types of classic errors by utilizing adjacent images while preserving the undamaged parts of an error image as much as possible. We tested our method to error images detected from our quality check system in KBS(Korean Broadcasting System) video archive. We are also implementing the algorithm as a plugin of well-known NLE(Non-linear editing system), which is a familiar tool for quality control agent.

  8. VLSI Architectures for Sliding-Window-Based Space-Time Turbo Trellis Code Decoders

    Directory of Open Access Journals (Sweden)

    Georgios Passas

    2012-01-01

    Full Text Available The VLSI implementation of SISO-MAP decoders used for traditional iterative turbo coding has been investigated in the literature. In this paper, a complete architectural model of a space-time turbo code receiver that includes elementary decoders is presented. These architectures are based on newly proposed building blocks such as a recursive add-compare-select-offset (ACSO unit, A-, B-, Γ-, and LLR output calculation modules. Measurements of complexity and decoding delay of several sliding-window-technique-based MAP decoder architectures and a proposed parameter set lead to defining equations and comparison between those architectures.

  9. Sliding Window Based Machine Learning System for the Left Ventricle Localization in MR Cardiac Images

    Directory of Open Access Journals (Sweden)

    Abdulkader Helwan

    2017-01-01

    Full Text Available The most commonly encountered problem in vision systems includes its capability to suffice for different scenes containing the object of interest to be detected. Generally, the different backgrounds in which the objects of interest are contained significantly dwindle the performance of vision systems. In this work, we design a sliding windows machine learning system for the recognition and detection of left ventricles in MR cardiac images. We leverage on the capability of artificial neural networks to cope with some of the inevitable scene constraints encountered in medical objects detection tasks. We train a backpropagation neural network on samples of left and nonleft ventricles. We reformulate the left ventricles detection task as a machine learning problem and employ an intelligent system (backpropagation neural network to achieve the detection task. We treat the left ventricle detection problem as binary classification tasks by assigning collected left ventricle samples as one class, and random (nonleft ventricles objects are the other class. The trained backpropagation neural network is validated to possess a good generalization power by simulating it with a test set. A recognition rate of 100% and 88% is achieved on the training and test set, respectively. The trained backpropagation neural network is used to determine if the sampled region in a target image contains a left ventricle or not. Lastly, we show the effectiveness of the proposed system by comparing the manual detection of left ventricles drawn by medical experts and the automatic detection by the trained network.

  10. Improving quantitative dosimetry in (177)Lu-DOTATATE SPECT by energy window-based scatter corrections

    DEFF Research Database (Denmark)

    de Nijs, Robin; Lagerburg, Vera; Klausen, Thomas L

    2014-01-01

    and the activity, which depends on the collimator type, the utilized energy windows and the applied scatter correction techniques. In this study, energy window subtraction-based scatter correction methods are compared experimentally and quantitatively. MATERIALS AND METHODS: (177)Lu SPECT images of a phantom...... technique, the measured ratio was close to the real ratio, and the differences between spheres were small. CONCLUSION: For quantitative (177)Lu imaging MEGP collimators are advised. Both energy peaks can be utilized when the ESSE correction technique is applied. The difference between the calculated...

  11. A novel window based method for approximating the Hausdorff in 3D range imagery.

    Energy Technology Data Exchange (ETDEWEB)

    Koch, Mark William

    2004-10-01

    Matching a set of 3D points to another set of 3D points is an important part of any 3D object recognition system. The Hausdorff distance is known for it robustness in the face of obscuration, clutter, and noise. We show how to approximate the 3D Hausdorff fraction with linear time complexity and quadratic space complexity. We empirically demonstrate that the approximation is very good when compared to actual Hausdorff distances.

  12. An Optimization Method of Time Window Based on Travel Time and Reliability

    Directory of Open Access Journals (Sweden)

    Fengjie Fu

    2015-01-01

    Full Text Available The dynamic change of urban road travel time was analyzed using video image detector data, and it showed cyclic variation, so the signal cycle length at the upstream intersection was conducted as the basic unit of time window; there was some evidence of bimodality in the actual travel time distributions; therefore, the fitting parameters of the travel time bimodal distribution were estimated using the EM algorithm. Then the weighted average value of the two means was indicated as the travel time estimation value, and the Modified Buffer Time Index (MBIT was expressed as travel time variability; based on the characteristics of travel time change and MBIT along with different time windows, the time window was optimized dynamically for minimum MBIT, requiring that the travel time change be lower than the threshold value and traffic incidents can be detected real time; finally, travel times on Shandong Road in Qingdao were estimated every 10 s, 120 s, optimal time windows, and 480 s and the comparisons demonstrated that travel time estimation in optimal time windows can exactly and steadily reflect the real-time traffic. It verifies the effectiveness of the optimization method.

  13. Development and Investigation of Evacuated Windows Based on Monolithic Silica Xerogel Spacers

    DEFF Research Database (Denmark)

    Schultz, Jørgen Munthe; Svendsen, Sv Aa Højgaard

    hydrophobic it has to be protected against liquid water, that will demolish the pore structure of the material due to the surface tensions. For the application in window glazings the protection against liquid water is formed by placing the xerogel in between two sheets of glass and sealing the rim...... and 3) application for insulating glazings.Scientific developments have made it possible to prepare low density monolithic silica xerogels, only from about 1990, and developments in both the production process as well as size of the samples are necessary for a commercial use of the material...

  14. Winflume: Windows-based Software for the Design and Calibration of Long-throated Measuring Flumes

    Science.gov (United States)

    Long-throated flumes and broad-crested weirs provide a practical, low-cost, flexible means of measuring open-channel flows in new and existing irrigation systems, with distinct advantages over other flume and weir devices. A primary advantage is the fact that these structures can be custom-designed ...

  15. Electronic Health Record for Intensive Care based on Usual Windows Based Software.

    Science.gov (United States)

    Reper, Arnaud; Reper, Pascal

    2015-08-01

    In Intensive Care Units, the amount of data to be processed for patients care, the turn over of the patients, the necessity for reliability and for review processes indicate the use of Patient Data Management Systems (PDMS) and electronic health records (EHR). To respond to the needs of an Intensive Care Unit and not to be locked with proprietary software, we developed an EHR based on usual software and components. The software was designed as a client-server architecture running on the Windows operating system and powered by the access data base system. The client software was developed using Visual Basic interface library. The application offers to the users the following functions: medical notes captures, observations and treatments, nursing charts with administration of medications, scoring systems for classification, and possibilities to encode medical activities for billing processes. Since his deployment in September 2004, the EHR was used to care more than five thousands patients with the expected software reliability and facilitated data management and review processes. Communications with other medical software were not developed from the start, and are realized by the use of basic functionalities communication engine. Further upgrade of the system will include multi-platform support, use of typed language with static analysis, and configurable interface. The developed system based on usual software components was able to respond to the medical needs of the local ICU environment. The use of Windows for development allowed us to customize the software to the preexisting organization and contributed to the acceptability of the whole system.

  16. Generating Computer Forensic Super Timelines under Linux: A Comprehensive Guide for Windows-based Disk Images

    Science.gov (United States)

    2011-10-01

    itself. Rather, each individual file is herein considered as a sub-filesystem node or leaf which itself may contain additional filesystem-specific date...filesystems supported only by proprietary hardware or electronic devices including handhelds (e.g. Blackberry , Palm, etc.) and other multimedia devices...exFAT, VxFS, Microsoft VHD, AFF, EWF and Blackberry IDP backup files, not including the other disk image formats it supports. [2, 3] 9 EnCase 6.0

  17. Sliding Window Based Feature Extraction and Traffic Clustering for Green Mobile Cyberphysical Systems

    Directory of Open Access Journals (Sweden)

    Jiao Zhang

    2017-01-01

    Full Text Available Both the densification of small base stations and the diversity of user activities bring huge challenges for today’s heterogeneous networks, either heavy burdens on base stations or serious energy waste. In order to ensure coverage of the network while reducing the total energy consumption, we adopt a green mobile cyberphysical system (MCPS to handle this problem. In this paper, we propose a feature extraction method using sliding window to extract the distribution feature of mobile user equipment (UE, and a case study is presented to demonstrate that the method is efficacious in reserving the clustering distribution feature. Furthermore, we present traffic clustering analysis to categorize collected traffic distribution samples into a limited set of traffic patterns, where the patterns and corresponding optimized control strategies are used to similar traffic distributions for the rapid control of base station state. Experimental results show that the sliding window is more superior in enabling higher UE coverage over the grid method. Besides, the optimized control strategy obtained from the traffic pattern is capable of achieving a high coverage that can well serve over 98% of all mobile UE for similar traffic distributions.

  18. Electrically tunable window based on microwrinkled ZnO/Ag thin film

    Science.gov (United States)

    Shrestha, Milan; Asundi, Anand; Lau, Gih-Keong

    2017-04-01

    Micro-winkling can turn a transparent thin-film of zinc oxide (ZnO) to be `opaque' that can be reversed by unfolding to restore back to the clear state. This principle was previously used to make a mechanically tunable window device. However, ZnO thin film cannot make a compliant electrode to enable electrical unfolding due to its insulator nature. This paper reports the use of multilayer thin films of 10nm silver (Ag) and 30nm thick ZnO to form a compliant electrode with electrically tunable transmittance. A dielectric elastomer actuator (DEA) with a pair of such compliant Ag/ZnO thin films on both sides of a polyacrylate elastomeric membrane (3M VHB 4910) makes an electrically tunable window device. The DEA without radial compression of the elastomer has wrinkle-free electrode. Hence, it is clear with a 47% in-line transmittance (for 550nm wavelength light). In the wrinkled form, under 10% radial compression, it becomes opaque (with less than 1% transmittance). A voltage induced areal expansion of 10% radial strain enables the electrical unfolding of the initial wrinkles. In addition, this device continues to work after 4000 cycles of unfolding and microwrinkling of Ag/ZnO. The performance of electrically tunable window device is comparable to the existing smart window technologies.

  19. WinBEST-KIT: Windows-based biochemical reaction simulator for metabolic pathways.

    Science.gov (United States)

    Sekiguchi, Tatsuya; Okamoto, Masahiro

    2006-06-01

    We have implemented an efficient, user-friendly biochemical reaction simulator called Web-based BEST-KIT (Biochemical Engineering System analyzing Tool-KIT) for analyzing large-scale nonlinear networks such as metabolic pathways. Users can easily design and analyze an arbitrary reaction scheme through the Internet and an efficient graphical user interface without considering the mathematical equations. The reaction scheme can include several reaction types, which are represented by both the mass action law (mass balance) and approximated velocity functions of enzyme kinetics at steady state, such as Michaelis-Menten, Hill cooperative, Competitive inhibition. However, since all modules in Web-based BEST-KIT have been developed in Java applet style, users cannot optionally make use of original mathematical equations in addition to the prepared equations. In the present study, we have developed a new version of BEST-KIT (for Microsoft Windows called WinBEST-KIT) to allow users to define original mathematical equations and to customize these equations very easily as user-defined reaction symbols. The following powerful system-analytical methods are prepared for system analysis: time-course calculation, parameter scanning, estimation of the values of unknown kinetic parameters based on experimentally observed time-course data of reactants, dynamic response of reactants against virtual external perturbations, and real-time simulation (Virtual Dry Lab).

  20. XRTD: An X-Windows based, real-time radiometric display and analysis system

    Science.gov (United States)

    Pollmeier, Vincent M.

    1993-01-01

    XRTD is a graphical user interface (GUI) based tool for monitoring real time radiometric spacecraft data. The tool is designed to allow the navigation analyst to both view and analyze the characteristics of Doppler and ranging data. This capability is critical if ground personnel wish to verify the correct performance of ongoing maneuvers. The raw tracking data is transferred from Deep Space Network (DSN) computers to a local workstation, where the predicted value for the observable is subtracted from the actual observed value to create a residual. The tool then allows the navigation analyst to rescale and replot the data using simple GUI techniques. The navigator may then perform a number of data analysis and modeling techniques on the resulting residuals to allow for the real time characterization of spacecraft events. These techniques include the modeling of maneuvers, the compression and differencing of data, and Fast Fourier transforms of the data. This tool has shortened the amount of time required for initial characterization of spacecraft maneuvers from several hours to a few minutes.

  1. An innovative transparent cranial window based on skull optical clearing An innovative transparent cranial window

    Science.gov (United States)

    Wang, J.; Zhang, Y.; Xu, T. H.; Luo, Q. M.; Zhu, D.

    2012-06-01

    Noninvasive optical methods for viewing the structural and functional organization of cortex have been playing important roles in brain research, which usually suffer from turbid skull. Various cranial window models based on surgical operation have been proposed, but have respective limitations. Here, an innovative transparent cranial window of mouse was established by topically treatment with a skull optical clearing solution (SOCS), rather than by craniotomy. Based on the experiment of optical clearing efficacy of skull in vitro, we found that the turbid skull became transparent within 25 min after application of SOCS. The USAF target is visible through the treated skull, and the calculated resolution can achieve 8.4 μm. After the in vivo skull was topically treated with SOCS, the cortical micro-vessels can be visible clearly. The quantitative analysis indicated that the minimum resolution diameter of micro-vessels in 14.4±0.8 μm through the transparent cranial window closed to that in 12.8±0.9 μm of the exposed cortical micro-vessels. Further, preliminary results from Laser Speckle Imaging demonstrated that there was no influence on cortical blood flow distribution of mouse after topically treatment with SOCS on skull. This transparent cranial window will provide a convenient model for cortex imaging in vivo, which is very significant for neuroscience research.

  2. Slanted support window-based stereo matching for surface reconstruction of microscopic samples.

    Science.gov (United States)

    Baghaie, Ahmadreza; Zhang, Chi; Bakhshinejad, Ali; Owen, Heather A; Chao, Hongyang; D'Souza, Roshan M; Yu, Zeyun

    2017-12-01

    This work is to address the limitations of 2D Scanning Electron Microscopy (SEM) micrographs in providing 3D topographical information necessary for various types of analysis in biological and biomedical sciences as well as mechanical and material engineering by investigating modern stereo vision methodologies for 3D surface reconstruction of microscopic samples. To achieve this, micrograph pairs of the microscopic samples are acquired by utilizing an SEM equipped with motor controlled specimen stage capable of precise translational, rotational movements and tilting of the specimen stage. After pre-processing of the micrographs by SIFT feature detection/description followed by RANSAC for matching outlier removal and stereo rectification, a dense stereo matching methodology is utilized which takes advantage of slanted support window formulation for sub-pixel accuracy stereo matching of the input images. This results in a dense disparity map which is used to determine the true depth/elevation of individual surface points. This is a major improvement in comparison to previous matching methodologies which require additional post-processing refinement steps to reduce the negative effects of discrete disparity assignment or the blurring artifacts in near the edge regions. The provided results are great representatives of the superior performance of the slanted support window assumption employed here for surface reconstruction of microscopic samples. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Characteristics and contents of dreams.

    Science.gov (United States)

    Schredl, Michael

    2010-01-01

    Dreams have been studied from different perspectives: psychoanalysis, academic psychology, and neurosciences. After presenting the definition of dreaming and the methodological tools of dream research, the major findings regarding the phenomenology of dreaming and the factors influencing dream content are briefly reviewed. The so-called continuity hypothesis stating that dreams reflect waking-life experiences is supported by studies investigating the dreams of psychiatric patients and patients with sleep disorders, i.e., their daytime symptoms and problems are reflected in their dreams. Dreams also have an effect on subsequent waking life, e.g., on daytime mood and creativity. The question about the functions of dreaming is still unanswered and open to future research. Copyright © 2010 Elsevier Inc. All rights reserved.

  4. MATHEMATICAL PROBLEMS OF INTEGRATIVE CONTENTS

    Directory of Open Access Journals (Sweden)

    V. Kushnir

    2014-09-01

    Full Text Available The tasks of integrative content requires the use of knowledge and skills on various themes both one discipline and different disciplines. Mostly in the classroom (or in homework the tasks on the properties absorption of different concepts using different theories are considered. Thus knowledge within only one discipline is formed, knowledge of the narrow sense (one subject. Such knowledge is "prescriptional", we call it idealized. After all, it is far from models of the real professional problems and problems of life in general, in order to solve them it is necessary to apply knowledge and skills acquired in different themes of the same objects,life experience. Practical formation of integrative knowledge requires statement of the educational problems before the subjects of studying, the problems within the "narrow objectivity" can not be resolved at all, or such kind of solving is too difficult to solve, for example, the nature and the context of solving problems (scientific approaches to solving problems, creating mathematical models, methods for solving such models, means of solving, application of methods, analysis of the models solution and the right choice, the inspection of solutions, etc. will sink in the conglomeration of technical operations. The problems with integrative content are usually more complicated than the problems of "narrow objectivity." In our problems the index of such difficulty is the essence of educational content, which is disclosed in the previous paragraph. The problems solution proposed in this article requires knowledge of the structural geometry (circle construction, touching two or three laps: with analytic geometry (method of coordinates on the plane; the distance between two points on the coordinate plane; algebra (system drawing irrational equations, method for solving such system, the solution of the system, analysis of the results and the right choose of the desired solution for found criterion, testing

  5. Language context guides memory content.

    Science.gov (United States)

    Marian, Viorica; Kaushanskaya, Margarita

    2007-10-01

    The relationship between language and memory was examined by testing accessibility of general knowledge across two languages in bilinguals. Mandarin-English speakers were asked questions such as "name a statue of someone standing with a raised arm while looking into the distance" and were more likely to name the Statue of Liberty when asked in English and the Statue of Mao when asked in Mandarin. Multivalent information (i.e., multiple possible answers to a question) and bivalent information (i.e., two possible answers to a question) were more susceptible to language dependency than univalent information (i.e., one possible answer to a question). Accuracy of retrieval showed language-dependent memory effects in both languages, while speed of retrieval showed language-dependent memory effects only in bilinguals' more proficient language. These findings suggest that memory and language are tightly connected and that linguistic context at the time of learning may become integrated into memory content.

  6. Caffeine content of common beverages.

    Science.gov (United States)

    Bunker, M L; McWilliams, M

    1979-01-01

    Tea, coffee, carbonated and chocolate beverages were analyzed for caffeine, and results compared in terms of usual serving sizes. Significant differences in caffeine levels were found to result from the preparation method of coffee or brewing time of tea. It is possible for a cup of tea, instant coffee, or can of cola beverage to have similar caffeine content (55 to 65 mg.); however, the mean values per cup of black tea (28 to 46 mg.) are considerably lower than for brewed coffee (107 to 151 mg.). Caffeine is readily absorbed and can have pharmacologic effects on adults or on children who consume quantities of cola beverages or chocolate. Both preparation method and quantity of beverage consumed should be considered in taking dietary histories or estimating caffeine intake.

  7. Inverse statistics and information content

    Science.gov (United States)

    Ebadi, H.; Bolgorian, Meysam; Jafari, G. R.

    2010-12-01

    Inverse statistics analysis studies the distribution of investment horizons to achieve a predefined level of return. This distribution provides a maximum investment horizon which determines the most likely horizon for gaining a specific return. There exists a significant difference between inverse statistics of financial market data and a fractional Brownian motion (fBm) as an uncorrelated time-series, which is a suitable criteria to measure information content in financial data. In this paper we perform this analysis for the DJIA and S&P500 as two developed markets and Tehran price index (TEPIX) as an emerging market. We also compare these probability distributions with fBm probability, to detect when the behavior of the stocks are the same as fBm.

  8. Perception of Simultaneous Auditive Contents

    Science.gov (United States)

    Tschinkel, Christian

    Based on a model of pluralistic music, we may approach an aesthetic concept of music, which employs dichotic listening situations. The concept of dichotic listening stems from neuropsychological test conditions in lateralization experiments on brain hemispheres, in which each ear is exposed to a different auditory content. In the framework of such sound experiments, the question which primarily arises concerns a new kind of hearing, which is also conceivable without earphones as a spatial composition, and which may superficially be linked to its degree of complexity. From a psychological perspective, the degree of complexity is correlated with the degree of attention given, with the listener's musical or listening experience and the level of his appreciation. Therefore, we may possibly also expect a measurable increase in physical activity. Furthermore, a dialectic interpretation of such "dualistic" music presents itself.

  9. Psychoactive drug advertising: content analysis.

    Science.gov (United States)

    Mastroianni, Patrícia C; Vaz, Amanda Cristina R; Noto, Ana Regina; Galduróz, José Carlos F

    2008-10-01

    The goal of this study was to describe the human figures portrayed in psychoactive drug advertising in terms of gender, age, ethnic group, and social context. Content analysis for 86 new pieces of printed advertisements released in 2005 was carried out. Fisher exact test was used to analyze the association between categories. There was a preponderance of women (62.8%) who were four times more present in advertisements for antidepressants and anxyolitics than men. Most of the people shown were Caucasian (98.8%) young adults (72%). These people were pictured in leisure activities (46.5%), at home (29%), or in contact with nature (16.2%). The message conveyed was that the drugs treat routinely felt subjective symptoms of discomfort, inducing in an irrational appeal that may affect drug prescription.

  10. 75 FR 41989 - Content of Periodicals Mail

    Science.gov (United States)

    2010-07-20

    ... 111 Content of Periodicals Mail AGENCY: Postal Service TM . ACTION: Final rule. SUMMARY: The Postal....3, to update present ``content requirements'' on materials eligible for mailing at Periodicals prices with authorized Periodicals publications. DATES: Effective September 7, 2010. FOR FURTHER...

  11. The contents of whiting stomachs: statistics

    National Research Council Canada - National Science Library

    Degnbol, P

    1992-01-01

    .... The total stomach contents from 8292 non-regurgitated stomachs was measured. The distribution of the stomach contents/body weight ratio was found to conform to a delta distribution for most length-time-station combinations...

  12. Airline Facebook pages – a content analysis

    National Research Council Canada - National Science Library

    Grančay, Martin

    .... This topic has not been covered by scientific literature so far.This paper uses content analysis to identify types of content provided by airlines on their official Facebook pages and extent of services offered...

  13. Content Espresso: A Distributed Large File Sharing System for Digital Content Productions

    National Research Council Canada - National Science Library

    ANDO, Daisuke; TERAOKA, Fumio; KANEKO, Kunitake

    2017-01-01

    With rapid growth of producing high-resolution digital contents such as Full HD, 4K, and 8K movies, the demand for low cost and high throughput sharing of content files is increasing at digital content productions...

  14. Optimal content delivery with network coding

    OpenAIRE

    Leong, Derek; Ho, Tracey; Cathey, Rebecca

    2009-01-01

    We present a unified linear program formulation for optimal content delivery in content delivery networks (CDNs), taking into account various costs and constraints associated with content dissemination from the origin server to storage nodes, data storage, and the eventual fetching of content from storage nodes by end users. Our formulation can be used to achieve a variety of performance goals and system behavior, including the bounding of fetch delay, load balancing, and robustness against...

  15. Smart Content Factory—Approaching the Vision

    OpenAIRE

    G. Güntner; Reich, S.

    2005-01-01

    In our paper we describe the objectives and achievements of a project called “Smart Content Factory”. The project aims at the creation of a knowledge-aware system infrastructure to support the utilization of audiovisual content. We will provide an overview of the project objectives and introduce “digital content engineering” as a scientific discipline dealing with concepts, methodologies, techniques and tools for a quantifiable approach towards the vision of smart content, thereby addressing ...

  16. Enabling DRM-preserving Digital content Redistribution

    NARCIS (Netherlands)

    Krishnan Nair, S.; Popescu, B.C.; Gamage, C.D.; Crispo, B.; Tanenbaum, A.S.

    2005-01-01

    Traditionally, the process of online digital content distribution has involved a limited number of centralised distributors selling protected contents and licenses authorising the use of the se contents, to consumers. In this paper, we extend this model by introducing a security scheme that enables

  17. 48 CFR 1506.303-2 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 6 2017-10-01 2017-10-01 false Content. 1506.303-2... PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 1506.303-2 Content. The... incorporate the evaluation of responses to the synopsis in the JOFOC. (See 1506.371(d) for contents of the...

  18. 49 CFR 1121.3 - Content.

    Science.gov (United States)

    2013-10-01

    ... 49 Transportation 8 2013-10-01 2013-10-01 false Content. 1121.3 Section 1121.3 Transportation... TRANSPORTATION RULES OF PRACTICE RAIL EXEMPTION PROCEDURES § 1121.3 Content. Link to an amendment published at 78.... For the convenience of the user, the added and revised text is set forth as follows: § 1121.3 Content...

  19. 46 CFR 160.041-4 - Contents.

    Science.gov (United States)

    2012-10-01

    ... 46 Shipping 6 2012-10-01 2012-10-01 false Contents. 160.041-4 Section 160.041-4 Shipping COAST...: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Kits, First-Aid, for Merchant Vessels § 160.041-4 Contents. (a... Recommendation R178-41, properly labeled to designate the name, size of contents, and method of use, and shall...

  20. 46 CFR 160.054-4 - Contents.

    Science.gov (United States)

    2012-10-01

    ... 46 Shipping 6 2012-10-01 2012-10-01 false Contents. 160.054-4 Section 160.054-4 Shipping COAST...: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Kits, First-Aid, for Inflatable Liferafts § 160.054-4 Contents. (a) Individual cartons. Cartons and their contents shall be the type indicated in Specification...

  1. 46 CFR 160.041-4 - Contents.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Contents. 160.041-4 Section 160.041-4 Shipping COAST...: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Kits, First-Aid, for Merchant Vessels § 160.041-4 Contents. (a... Recommendation R178-41, properly labeled to designate the name, size of contents, and method of use, and shall...

  2. Open content licensing: from theory to practice

    NARCIS (Netherlands)

    Guibault, L.; Angelopoulos, C.

    2011-01-01

    Although open content licences only account for a fraction of all copyright licences currently in force in the copyright world, the mentality change initated by the open content movement is here to stay. To promote the use of open content licences, it is important to better understand the

  3. RSS: Lo-Fi Content Syndication.

    Science.gov (United States)

    Bannan, Karen J.

    2002-01-01

    Rich Site Summary (RSS) is an XML format designed to let content providers share news headlines and content with other sites without having to create a completely new Web page. Discusses three issues to consider before creating a newsfeed: content integrity, bandwidth issues, and spellcheck. Identifies resources for getting started and the two…

  4. Disciplinary Literacy and Pedagogical Content Knowledge

    Science.gov (United States)

    Carney, Michelle; Indrisano, Roselmina

    2013-01-01

    This review reports selected literature on theory, research, and practice in disciplinary literacy, primarily reading. The authors consider the ways this literature can be viewed through the lens of Lee S. Shulman's theory of Pedagogical Content Knowledge, which includes: subject matter content knowledge, pedagogical content knowledge, and…

  5. Breast milk nutrient content and infancy growth

    NARCIS (Netherlands)

    Prentice, Philippa; Ong, Ken K.; Schoemaker, Marieke H.; Tol, van Eric A.F.; Vervoort, Jacques; Hughes, Ieuan A.; Acerini, Carlo L.; Dunger, David B.

    2016-01-01

    Aim: Benefits of human breast milk (HM) in avoiding rapid infancy weight gain and later obesity could relate to its nutrient content. We tested the hypothesis that differential HM total calorie content (TCC) or macronutrient contents may be associated with infancy growth. Methods: HM hindmilk

  6. 48 CFR 1506.303-2 - Content.

    Science.gov (United States)

    2008-10-01

    ... 48 Federal Acquisition Regulations System 6 2008-10-01 2008-10-01 false Content. 1506.303-2... PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 1506.303-2 Content. The... incorporate the evaluation of responses to the synopsis in the JOFOC. (See 1506.371(d) for contents of the...

  7. 27 CFR 4.37 - Net contents.

    Science.gov (United States)

    2010-04-01

    ... the volume of wine within the container, except that the following tolerances shall be allowed: (1... THE TREASURY LIQUORS LABELING AND ADVERTISING OF WINE Labeling Requirements for Wine § 4.37 Net contents. (a) Statement of net contents. The net contents of wine for which a standard of fill is...

  8. An Introduction to Content Analysis. ERIC Digest.

    Science.gov (United States)

    Stemler, Steve

    This digest provides an introduction to content analysis, a systematic, replicable technique for compressing many words of a text into fewer content categories based on explicit rules of coding. This allows inferences to be made that can then be corroborated using other methods of data collection. In a technical sense, content analysis is not…

  9. [Relativity among starch quantity, polysaccharides content and total alkaloid content of Dendrobium loddigesii].

    Science.gov (United States)

    Zhu, Hua; Teng, Jianbei; Cai, Yi; Liang, Jie; Zhu, Yilin; Wei, Tao

    2011-12-01

    To find out the relativity among starch quantity, polysaccharides content and total alkaloid content of Dendrobium loddigesii. Microscopy-counting process was applied to starch quantity statistics, sulfuric acid-anthrone colorimetry was used to assay polysaccharides content and bromocresol green colorimetry was used to assay alkaloid content. Pearson product moment correlation analysis, Kendall's rank correlation analysis and Spearman's concordance coefficient analysis were applied to study their relativity. Extremely significant positive correlation was found between starch quantity and polysaccharides content, and significant negative correlation between alkaloid content and starch quantity was discovered, as well was between alkaloid content and polysaccharides content.

  10. An emerging role: the nurse content curator.

    Science.gov (United States)

    Brooks, Beth A

    2015-01-01

    A new phenomenon, the inverted or "flipped" classroom, assumes that students are no longer acquiring knowledge exclusively through textbooks or lectures. Instead, they are seeking out the vast amount of free information available to them online (the very essence of open source) to supplement learning gleaned in textbooks and lectures. With so much open-source content available to nursing faculty, it benefits the faculty to use readily available, technologically advanced content. The nurse content curator supports nursing faculty in its use of such content. Even more importantly, the highly paid, time-strapped faculty is not spending an inordinate amount of effort surfing for and evaluating content. The nurse content curator does that work, while the faculty uses its time more effectively to help students vet the truth, make meaning of the content, and learn to problem-solve. Brooks. © 2014 Wiley Periodicals, Inc.

  11. Towards Player-Driven Procedural Content Generation

    DEFF Research Database (Denmark)

    Shaker, Noor

    Generating immersive game content is one of the ultimate goals for a game designer. This goal can be achieved taken into account that players’ perceptions of the same game differ according to a number of factors including: players’ personality, playing styles, expertise and cultural background. One...... of generating personalized content for the player: how can we measure player experience, how can we represent game content, playing style and the in-game interaction, what features should be used to capture player experience and how can they be extracted, how can we model the unknown function between game...... content, player behavior and affect, how can we generate game content that is tailored to particular player needs and style, how often game content should be adapted, and how the adaptation mechanism can be tested? We focus on 2D platform game genre as a testbed for our player-driven procedural content...

  12. 78 FR 22518 - Request for Information Regarding Third Party Testing for Lead Content, Phthalate Content, and...

    Science.gov (United States)

    2013-04-16

    ... COMMISSION Request for Information Regarding Third Party Testing for Lead Content, Phthalate Content, and the... primarily intended for children 12 years old and younger, the lead content must be no greater than 100 parts per million (ppm), and the lead content of paints or surface coatings must be no greater than 90 ppm...

  13. Using Content Maps to Measure Content Development in Physical Education: Validation and Application

    Science.gov (United States)

    Ward, Phillip; Dervent, Fatih; Lee, Yun Soo; Ko, Bomna; Kim, Insook; Tao, Wang

    2017-01-01

    Purpose: This study reports on our efforts toward extending the conceptual understanding of content development in physical education by validating content maps as a measurement tool, examining new categories of instructional tasks to describe content development and validating formulae that can be used to evaluate depth of content development.…

  14. Content Delivery and Vertical Integration in O-L Content Markets

    OpenAIRE

    Lanzi, Diego; Marzo, Massimiliano

    2004-01-01

    On-line content delivery and vertical alliances between conduit and content providers are nowadays crucial issues in digital markets. In this paper, we discuss and compare a push and a pull model for on-line content delivery in the case of non-zero marginal cost for network transits because of network services for content delivery (like data caching). Under both models, we show that rationales for vertical strategic integration between conduit and content providers phase out in successive mon...

  15. TV content analysis techniques and applications

    CERN Document Server

    Kompatsiaris, Yiannis

    2012-01-01

    The rapid advancement of digital multimedia technologies has not only revolutionized the production and distribution of audiovisual content, but also created the need to efficiently analyze TV programs to enable applications for content managers and consumers. Leaving no stone unturned, TV Content Analysis: Techniques and Applications provides a detailed exploration of TV program analysis techniques. Leading researchers and academics from around the world supply scientifically sound treatment of recent developments across the related subject areas--including systems, architectures, algorithms,

  16. Towards art content in original graphic arts

    OpenAIRE

    Grdina, Sonja

    2011-01-01

    Contemporary Graphic art defines numerous graphic art techniques; from classical original graphic art techniques to the new media techniques. The new media reproduction and communication capacity influences contemporary art works in such way that more attention is on non-artistic content, while artistic content with its visual efficiency becomes less important. Reproductibility is one of the non-artistic contents which plays a key role in original graphic arts, where it is a means of making o...

  17. Using Content Distribution Networks for Astronomy Outreach

    Science.gov (United States)

    Jäger, M.; Christiansen, L. L.; André, M.

    2015-09-01

    Thousands of people from all over the world search the internet on a daily basis for the newest discoveries in astronomy: be it in the form of press releases, high resolution images, videos or even planetarium fulldome content. The growing amount of data available, combined with the increasing number of media files and users distributed across the globe, leads to a significant decrease in speed for those users located furthest from the server delivering the content. One solution for bringing astronomical content to users faster is to use a content delivery network.

  18. Content-Based Personalization Services Integrating Folksonomies

    Science.gov (United States)

    Musto, Cataldo; Narducci, Fedelucio; Lops, Pasquale; de Gemmis, Marco; Semeraro, Giovanni

    Basic content-based personalization consists in matching up the attributes of a user profile, in which preferences and interests are stored, with the attributes of a content object. The Web 2.0 (r)evolution has changed the game for personalization, from ‘elitary’ Web 1.0, written by few and read by many, to web content generated by everyone (user-generated content - UGC), since the role of people has evolved from passive consumers of information to that of active contributors.

  19. Bioactive content, hepatoprotective and antioxidant activities of ...

    African Journals Online (AJOL)

    Bioactive content, hepatoprotective and antioxidant activities of whole plant extract of Micromeria fruticosa (L) Druce ssp Serpyllifolia F Lamiaceae against Carbon tetrachloride-induced hepatotoxicity in mice.

  20. Proximate composition and antinutrient content of pumpkin ...

    African Journals Online (AJOL)

    Proximate composition and antinutrient content of pumpkin ( Cucurbita pepo ) and sorghum ( Sorghum bicolor ) flour blends fermented with Lactobacillus plantarum , Aspergillus niger and Bacillus subtilis.

  1. Chemical composition, true metabolisable energy content and ...

    African Journals Online (AJOL)

    aneldavh

    characteristics (thousand seed and hectolitre mass), chemical composition (dry matter, ash, crude protein. (CP), ether extract, acid detergent fibre, neutral detergent fibre and mineral content), energy values (nitrogen corrected true metabolisable energy content (TMEn for roosters)) as well as the lysine and methionine.

  2. 75 FR 47717 - Content of Periodicals Mail

    Science.gov (United States)

    2010-08-09

    ... Part 111 Content of Periodicals Mail AGENCY: Postal Service\\TM\\ ACTION: Final rule; revised. SUMMARY... Manual (DMM ) 707.3, to update ``content requirements'' on materials eligible for mailing at Periodicals prices with authorized Periodicals publications. DATES: Effective Date: August 9, 2010. FOR FURTHER...

  3. Construct Validation of Content Standards for Teaching

    Science.gov (United States)

    van der Schaaf, Marieke F.; Stokking, Karel M.

    2011-01-01

    Current international demands to strengthen the teaching profession have led to an increased development and use of professional content standards. The study aims to provide insight in the construct validity of content standards by researching experts' underlying assumptions and preferences when participating in a delphi method. In three rounds 21…

  4. Polyphenols content, antioxidant and antimicrobial activities of ...

    African Journals Online (AJOL)

    25 wild plants were collected from the south of Tunisia. The dried aerial parts were extracted under a continuous reflux set-up in a Soxhlet extractor with hexane, ethyl acetate, methanol and water. The extracts were screened for total phenolic content, antioxidant and antimicrobial activities. Total phenolic contents were ...

  5. shoot water content and reference evapotranspiration for ...

    African Journals Online (AJOL)

    ACSS

    is the slope of saturation vapour pressure curve at air temperature T (kPa °C-1), T is air temperature (°C). Crop coefficient. Shoot water content was assumed to be crop coefficient, as crop evapotranspiration is always determined under unlimited water supply (Pereira et al., 2015), and hence the shoot water content reflects ...

  6. 14 CFR 125.73 - Contents.

    Science.gov (United States)

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Contents. 125.73 Section 125.73 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS AND...; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Manual Requirements § 125.73 Contents. Each manual...

  7. 48 CFR 3006.303-270 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 7 2017-10-01 2017-10-01 false Content. 3006.303-270 Section 3006.303-270 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND... Open Competition 3006.303-270 Content. (a)(9)(iv) For a proposed contract subject to the restrictions...

  8. 48 CFR 306.303-2 - Content.

    Science.gov (United States)

    2008-10-01

    ... 48 Federal Acquisition Regulations System 4 2008-10-01 2008-10-01 false Content. 306.303-2 Section 306.303-2 Federal Acquisition Regulations System HEALTH AND HUMAN SERVICES COMPETITION AND ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 306.303-2 Content. (a)(1) Each...

  9. 48 CFR 301.704 - Content.

    Science.gov (United States)

    2000-10-01

    ... 48 Federal Acquisition Regulations System 4 2000-10-01 2000-10-01 false Content. 301.704 Section 301.704 Federal Acquisition Regulations System DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL HHS ACQUISITION REGULATION SYSTEM Determinations and Findings 301.704 Content. An example of a D&F format may be...

  10. 43 CFR 2812.1-2 - Contents.

    Science.gov (United States)

    2006-10-01

    ... 43 Public Lands: Interior 2 2006-10-01 2006-10-01 false Contents. 2812.1-2 Section 2812.1-2 Public Lands: Interior Regulations Relating to Public Lands (Continued) BUREAU OF LAND MANAGEMENT, DEPARTMENT... Bay Revested Lands § 2812.1-2 Contents. (a) An individual applicant and each member of any...

  11. 29 CFR 102.12 - Contents.

    Science.gov (United States)

    2014-07-01

    ... 29 Labor 2 2014-07-01 2014-07-01 false Contents. 102.12 Section 102.12 Labor Regulations Relating to Labor NATIONAL LABOR RELATIONS BOARD RULES AND REGULATIONS, SERIES 8 Procedure Under Section 10 (a) to (i) of the Act for the Prevention of Unfair Labor Practices 1 Charge § 102.12 Contents. Such...

  12. 19 CFR 122.114 - Contents.

    Science.gov (United States)

    2012-04-01

    ... 19 Customs Duties 1 2012-04-01 2012-04-01 false Contents. 122.114 Section 122.114 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Transit Air Cargo Manifest (TACM) Procedures § 122.114 Contents. (a) Form duplicates...

  13. 48 CFR 1806.303-2 - Content.

    Science.gov (United States)

    1997-10-01

    ... 48 Federal Acquisition Regulations System 6 1997-10-01 1997-10-01 false Content. 1806.303-2 Section 1806.303-2 COMPETITION AND ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 1806.303-2 Content. ...

  14. 48 CFR 307.7102 - Content.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Content. 307.7102 Section 307.7102 Federal Acquisition Regulations System HEALTH AND HUMAN SERVICES COMPETITION AND ACQUISITION PLANNING ACQUISITION PLANNING Acquisition Plan 307.7102 Content. In accordance with 307.105, the FAR, HHSAR...

  15. 48 CFR 3506.303-2 - Content.

    Science.gov (United States)

    2002-10-01

    ... 48 Federal Acquisition Regulations System 7 2002-10-01 2001-10-01 true Content. 3506.303-2 Section 3506.303-2 Federal Acquisition Regulations System PANAMA CANAL COMMISSION COMPETITION AND ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 3506.303-2 Content. In addition to...

  16. 14 CFR 121.135 - Contents.

    Science.gov (United States)

    2001-01-01

    ... 14 Aeronautics and Space 2 2001-01-01 2001-01-01 false Contents. 121.135 Section 121.135 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Continued) AIR CARRIERS..., FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.135 Contents. (a) Each manual required by...

  17. 43 CFR 10010.18 - Content.

    Science.gov (United States)

    2006-10-01

    ... 43 Public Lands: Interior 2 2006-10-01 2006-10-01 false Content. 10010.18 Section 10010.18 Public Lands: Interior Regulations Relating to Public Lands (Continued) UTAH RECLAMATION MITIGATION AND... Environmental Assessments § 10010.18 Content. (a) At a minimum, an EA will include brief discussions of the need...

  18. 48 CFR 6.303-2 - Content.

    Science.gov (United States)

    2012-10-01

    ... 48 Federal Acquisition Regulations System 1 2012-10-01 2012-10-01 false Content. 6.303-2 Section 6.303-2 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 6.303-2 Content. (a) Each justification shall...

  19. 49 CFR 1542.103 - Content.

    Science.gov (United States)

    2011-10-01

    ... 49 Transportation 9 2011-10-01 2011-10-01 false Content. 1542.103 Section 1542.103 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION... Content. (a) Complete program. Except as otherwise approved by TSA, each airport operator regularly...

  20. 19 CFR § 122.114 - Contents.

    Science.gov (United States)

    2015-04-01

    ... 19 Customs Duties 1 2015-04-01 2015-04-01 false Contents. § 122.114 Section § 122.114 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Transit Air Cargo Manifest (TACM) Procedures § 122.114 Contents. (a) Form...

  1. 27 CFR 71.55 - Content.

    Science.gov (United States)

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Content. 71.55 Section 71.55 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE... Citations § 71.55 Content. (a) Citation for the suspension, revocation or annulment of a permit shall be...

  2. 48 CFR 3001.704 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 7 2017-10-01 2017-10-01 false Content. 3001.704 Section 3001.704 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY....704 Content. The following format shall be used for all determinations and findings (D&Fs), unless...

  3. 48 CFR 3001.7001 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 7 2017-10-01 2017-10-01 false Content. 3001.7001 Section 3001.7001 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY..., Exceptions, Approvals, Reviews, and Submittals 3001.7001 Content. The general format at (HSAR) 48 CFR 3001...

  4. 11 CFR 9428.4 - Contents.

    Science.gov (United States)

    2012-01-01

    ... 11 Federal Elections 1 2012-01-01 2012-01-01 false Contents. 9428.4 Section 9428.4 Federal Elections ELECTION ASSISTANCE COMMISSION NATIONAL VOTER REGISTRATION ACT (42 U.S.C. 1973gg-1 et seq.) National Mail Voter Registration Form § 9428.4 Contents. (a) Information about the applicant. The...

  5. 48 CFR 2806.303-2 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 6 2017-10-01 2017-10-01 false Content. 2806.303-2 Section 2806.303-2 Federal Acquisition Regulations System DEPARTMENT OF JUSTICE COMPETITION AND ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 2806.303-2 Content. In...

  6. 47 CFR 68.400 - Content.

    Science.gov (United States)

    1999-10-01

    ... 47 Telecommunication 3 1999-10-01 1999-10-01 false Content. 68.400 Section 68.400 Title 47- FEDERAL COMMUNICATIONS COMMISSION-(CONTINUED) COMMON CARRIER SERVICES (CONTINUED) CONNECTION OF TERMINAL EQUIPMENT TO THE TELEPHONE NETWORK Complaint Procedures § 68.400 Content. A complaint shall be in writing...

  7. 48 CFR 1.704 - Content.

    Science.gov (United States)

    2012-10-01

    ... 48 Federal Acquisition Regulations System 1 2012-10-01 2012-10-01 false Content. 1.704 Section 1.704 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION GENERAL FEDERAL ACQUISITION REGULATIONS SYSTEM Determinations and Findings 1.704 Content. Each D&F shall set forth enough facts and...

  8. 48 CFR 701.704 - Content.

    Science.gov (United States)

    2016-10-01

    ... 48 Federal Acquisition Regulations System 5 2016-10-01 2016-10-01 false Content. 701.704 Section 701.704 Federal Acquisition Regulations System AGENCY FOR INTERNATIONAL DEVELOPMENT GENERAL FEDERAL ACQUISITION REGULATION SYSTEM Determinations and Findings 701.704 Content. There is no USAID-prescribed format...

  9. 27 CFR 200.55 - Content.

    Science.gov (United States)

    1999-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 1999-04-01 1999-04-01 false Content. 200.55 Section 200.55 ALCOHOL, TOBACCO AND OTHER EXCISE TAXES-Continued RULES OF PRACTICE IN PERMIT PROCEEDINGS Hearing Procedure Citations § 200.55 Content. (a) Citation for the suspension, revocation or annulment of...

  10. 43 CFR § 10010.18 - Content.

    Science.gov (United States)

    2015-10-01

    ... 43 Public Lands: Interior 2 2015-10-01 2015-10-01 false Content. § 10010.18 Section § 10010.18 Public Lands: Interior Regulations Relating to Public Lands (Continued) UTAH RECLAMATION MITIGATION AND... Environmental Assessments § 10010.18 Content. (a) At a minimum, an EA will include brief discussions of the need...

  11. 14 CFR § 125.73 - Contents.

    Science.gov (United States)

    2015-01-01

    ... 14 Aeronautics and Space 3 2015-01-01 2015-01-01 false Contents. § 125.73 Section § 125.73 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS... OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Manual Requirements § 125.73 Contents...

  12. 11 CFR 8.4 - Contents.

    Science.gov (United States)

    2009-01-01

    ... 11 Federal Elections 1 2009-01-01 2009-01-01 false Contents. 8.4 Section 8.4 Federal Elections FEDERAL ELECTION COMMISSION NATIONAL VOTER REGISTRATION ACT (42 U.S.C. 1973gg-1 et seq.) National Mail Voter Registration Form § 8.4 Contents. (a) Information about the applicant. The application shall...

  13. 43 CFR 1862.1 - Contents.

    Science.gov (United States)

    1997-10-01

    ... 43 Public Lands: Interior 2 1997-10-01 1997-10-01 false Contents. 1862.1 Section 1862.1 GENERAL MANAGEMENT (1000) CONVEYANCES, DISCLAIMERS AND CORRECTION DOCUMENTS Patent Preparation and Issuance § 1862.1 Contents. (a) Patents for lands entered or located under general laws can be issued only in the name of the...

  14. 49 CFR § 1542.103 - Content.

    Science.gov (United States)

    2017-10-01

    ... 49 Transportation 9 2017-10-01 2017-10-01 false Content. § 1542.103 Section § 1542.103 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION... Content. (a) Complete program. Except as otherwise approved by TSA, each airport operator regularly...

  15. 45 CFR § 900.301 - Content.

    Science.gov (United States)

    2017-10-01

    ... 45 Public Welfare 3 2017-10-01 2017-10-01 false Content. § 900.301 Section § 900.301 Public Welfare Regulations Relating to Public Welfare (Continued) DENALI COMMISSION NATIONAL ENVIRONMENTAL POLICY ACT IMPLEMENTING PROCEDURES Environmental Assessments § 900.301 Content. (a) An EA shall include brief...

  16. 48 CFR 206.303-2 - Content.

    Science.gov (United States)

    2000-10-01

    ... 48 Federal Acquisition Regulations System 3 2000-10-01 2000-10-01 false Content. 206.303-2 Section 206.303-2 Federal Acquisition Regulations System DEPARTMENT OF DEFENSE ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 206.303-2 Content. (a) Include sufficient...

  17. 48 CFR 606.303-2 - Content.

    Science.gov (United States)

    2017-10-01

    ... 48 Federal Acquisition Regulations System 4 2017-10-01 2017-10-01 false Content. 606.303-2 Section 606.303-2 Federal Acquisition Regulations System DEPARTMENT OF STATE COMPETITION AND ACQUISITION PLANNING COMPETITION REQUIREMENTS Other Than Full and Open Competition 606.303-2 Content. (a) All...

  18. 27 CFR § 71.55 - Content.

    Science.gov (United States)

    2017-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2017-04-01 2017-04-01 false Content. § 71.55 Section § 71.55 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT... Procedure Citations § 71.55 Content. (a) Citation for the suspension, revocation or annulment of a permit...

  19. 24 CFR 7.32 - Contents.

    Science.gov (United States)

    1998-04-01

    ... 24 Housing and Urban Development 1 1998-04-01 1998-04-01 false Contents. 7.32 Section 7.32 Housing and Urban Development Office of the Secretary, Department of Housing and Urban Development EQUAL..., Religion, Sex, National Origin, Age, or Disability Complaints § 7.32 Contents. (a) The complaint filed...

  20. 49 CFR § 1121.3 - Content.

    Science.gov (United States)

    2017-10-01

    ... 49 Transportation 8 2017-10-01 2017-10-01 false Content. § 1121.3 Section § 1121.3 Transportation Other Regulations Relating to Transportation (Continued) SURFACE TRANSPORTATION BOARD RULES OF PRACTICE RAIL EXEMPTION PROCEDURES § 1121.3 Content. (a) A party filing a petition for exemption shall...

  1. 20 CFR § 726.315 - Contents.

    Science.gov (United States)

    2017-04-01

    ... 20 Employees' Benefits 4 2017-04-01 2017-04-01 false Contents. § 726.315 Section § 726.315 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH... INSURANCE Civil Money Penalties § 726.315 Contents. Any petition or cross-petition for review shall: (a) Be...

  2. 20 CFR 726.315 - Contents.

    Science.gov (United States)

    2011-04-01

    ... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Contents. 726.315 Section 726.315 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY... Money Penalties § 726.315 Contents. Any petition or cross-petition for review shall: (a) Be dated; (b...

  3. Content Propagation in Online Social Networks

    NARCIS (Netherlands)

    Blenn, N.

    2014-01-01

    This thesis presents methods and techniques to analyze content propagation within online social networks (OSNs) using a graph theoretical approach. Important factors and different techniques to analyze and describe content propagation, starting from the smallest entity in a network, representing a

  4. Chemical composition, true metabolisable energy content and ...

    African Journals Online (AJOL)

    Chemical composition, true metabolisable energy content and amino acid availability of grain legumes for poultry. ... TS Brand, DA Brandt, CW Cruywagen ... energy values (nitrogen corrected true metabolisable energy content (TMEn for roosters)) as well as the lysine and methionine availability (with roosters) of the ...

  5. Metadata for Content-Based Image Retrieval

    Directory of Open Access Journals (Sweden)

    Adrian Sterca

    2010-12-01

    Full Text Available This paper presents an image retrieval technique that combines content based image retrieval with pre-computed metadata-based image retrieval. The resulting system will have the advantages of both approaches: the speed/efficiency of metadata-based image retrieval and the accuracy/power of content-based image retrieval.

  6. 10 CFR § 205.83 - Contents.

    Science.gov (United States)

    2016-01-01

    ... 10 Energy 3 2016-01-01 2016-01-01 false Contents. § 205.83 Section § 205.83 Energy DEPARTMENT OF ENERGY OIL ADMINISTRATIVE PROCEDURES AND SANCTIONS Interpretation § 205.83 Contents. (a) The request shall contain a full and complete statement of all relevant facts pertaining to the circumstances, act...

  7. 48 CFR 206.303-2 - Content.

    Science.gov (United States)

    2016-10-01

    ... 48 Federal Acquisition Regulations System 3 2016-10-01 2016-10-01 false Content. 206.303-2 Section 206.303-2 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF... Content. (b)(i) Include the information required by PGI 206.303-2(b)(i) in justifications citing the...

  8. 48 CFR 3001.704 - Content.

    Science.gov (United States)

    2005-10-01

    ... 48 Federal Acquisition Regulations System 7 2005-10-01 2005-10-01 false Content. 3001.704 Section 3001.704 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY....704 Content. The following format shall be used for all determinations and findings (D&Fs), unless...

  9. 48 CFR 3001.7001 - Content.

    Science.gov (United States)

    2005-10-01

    ..., Exceptions, Approvals, Reviews, and Submittals 3001.7001 Content. The general format at (HSAR) 48 CFR 3001... 48 Federal Acquisition Regulations System 7 2005-10-01 2005-10-01 false Content. 3001.7001 Section 3001.7001 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY...

  10. 10 CFR § 1003.75 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 1003.75 Section § 1003.75 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Private Grievances and Redress § 1003.75 Contents. The petition shall contain a full and complete statement of all...

  11. 49 CFR § 1542.103 - Content.

    Science.gov (United States)

    2006-10-01

    ... 49 Transportation 9 2006-10-01 2006-10-01 false Content. § 1542.103 Section § 1542.103 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION... Content. (a) Complete program. Except as otherwise approved by TSA, each airport operator regularly...

  12. 40 CFR 211.104 - Label content.

    Science.gov (United States)

    2010-07-01

    ... Required by U.S. EPA regulation 40 CFR part 211, subpart ___.” EC01FE92.055 ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Label content. 211.104 Section 211.104... LABELING General Provisions § 211.104 Label content. The following data and information must be on the...

  13. 48 CFR 3001.7001 - Content.

    Science.gov (United States)

    2010-10-01

    ..., Exceptions, Approvals, Reviews, and Submittals 3001.7001 Content. The general format at (HSAR) 48 CFR 3001... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Content. 3001.7001 Section 3001.7001 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY...

  14. 48 CFR 3001.704 - Content.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Content. 3001.704 Section 3001.704 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY....704 Content. The following format shall be used for all determinations and findings (D&Fs), unless...

  15. A Review of Technological Pedagogical Content Knowledge

    Science.gov (United States)

    Chai, Ching Sing; Koh, Joyce Hwee Ling; Tsai, Chin-Chung

    2013-01-01

    This paper reviews 74 journal papers that investigate ICT integration from the framework of technological pedagogical content knowledge (TPACK). The TPACK framework is an extension of the pedagogical content knowledge (Shulman, 1986). TPACK is the type of integrative and transformative knowledge teachers need for effective use of ICT in…

  16. 27 CFR 7.27 - Net contents.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Net contents. 7.27 Section 7.27 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF... the net contents are displayed by having the same blown, branded, or burned in the container in...

  17. Antioxidant activity, phenols and flavonoids contents and ...

    African Journals Online (AJOL)

    Medicinal and aromatic plants (MAP) belonging to 16 species, currently used in southern Moroccan traditional medicine, were evaluated here, firstly, for the action of their aqueous extracts against the bacterial canker agent of tomato in vitro. Then the phenolic contents, flavonoids contents and antioxidant capacities of these ...

  18. Neuroevolutionary Constrained Optimization for Content Creation

    DEFF Research Database (Denmark)

    Liapis, Antonios; Yannakakis, Georgios N.; Togelius, Julian

    2011-01-01

    This paper presents a constraint-based procedural content generation (PCG) framework used for the creation of novel and high-performing content. Specifically, we examine the efficiency of the framework for the creation of spaceship design (hull shape and spaceship attributes such as weapon...... and survival tasks and are also visually appealing....

  19. Building an Intranet Content Management Strategy

    OpenAIRE

    Tredinnick, Luke

    2001-01-01

    A step-by-step guide to the principals of creating content management processes and resources for Intranets, this article covers the creation of aims and objectives for Intranets, information management issues specific to Intranets, and how to turn those objectives and issues into working content management\\ud procedures.

  20. Teaching Content Analysis through "Harry Potter"

    Science.gov (United States)

    Messinger, Adam M.

    2012-01-01

    Content analysis is a valuable research tool for social scientists that unfortunately can prove challenging to teach to undergraduate students. Published classroom exercises designed to teach content analysis have thus far been predominantly envisioned as lengthy projects for upper-level courses. A brief and engaging exercise may be more…

  1. 10 CFR § 1003.24 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 1003.24 Section § 1003.24 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Exceptions § 1003.24 Contents. (a) The application shall contain a full and complete statement of all relevant facts...

  2. 10 CFR § 1003.44 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 1003.44 Section § 1003.44 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Stays § 1003.44 Contents. (a) An Application for Stay shall contain a full and complete statement of all relevant facts...

  3. 48 CFR 2806.303-2 - Content.

    Science.gov (United States)

    2008-10-01

    ... 48 Federal Acquisition Regulations System 6 2008-10-01 2008-10-01 false Content. 2806.303-2 Section 2806.303-2 Federal Acquisition Regulations System DEPARTMENT OF JUSTICE Competition and Acquisition Planning COMPETITION REQUIREMENTS Other Than Full and Open Competition 2806.303-2 Content. In...

  4. 10 CFR § 1003.35 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 1003.35 Section § 1003.35 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Appeals § 1003.35 Contents. (a) The appeal shall contain a concise statement of grounds upon which it is brought and...

  5. 10 CFR § 1003.54 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 1003.54 Section § 1003.54 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) OFFICE OF HEARINGS AND APPEALS PROCEDURAL REGULATIONS Modification or Rescission § 1003.54 Contents. (a) The application shall contain a full and complete statement of all...

  6. 10 CFR § 501.122 - Contents.

    Science.gov (United States)

    2017-01-01

    ... 10 Energy 4 2017-01-01 2017-01-01 false Contents. § 501.122 Section § 501.122 Energy DEPARTMENT OF ENERGY (CONTINUED) ALTERNATE FUELS ADMINISTRATIVE PROCEDURES AND SANCTIONS Requests for Stay § 501.122 Contents. (a) A petition for a stay shall contain a full and complete statement of all facts...

  7. 39 CFR 3030.14 - Answer contents.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Answer contents. 3030.14 Section 3030.14 Postal... Initial Pleadings § 3030.14 Answer contents. (a) An answer must: (1) Contain a clear and concise statement... believes additional such steps would be inappropriate and the reasons for that belief. (b) The Commission...

  8. Deploying Content Management System to enhance State ...

    African Journals Online (AJOL)

    PROF. O. E. OSUAGWU

    2013-09-01

    Sep 1, 2013 ... Various web-based applications have been launched as a step towards ... 2.0 Theoretical Framework for the. Study. Modern ... Web pages. Web content includes text and embedded graphics, photos, video, audio, and code (e.g., for applications) that renders other content or interacts with the user. A.

  9. INFLUENCE OF IRON CONTENT AND PLASTIC DEFORMATION ...

    African Journals Online (AJOL)

    This paper examines the effect of iron content and plastic deformation on the mechanical properties of wrought Al-Fe-Si alloy. Seven samples each of dimension 240mm x 140mm x 7mm were cast for each aluminium alloy plate containing iron content of 0.708%, 0.909% and 0.931% by chill casting method. As-received ...

  10. Web Content Analysis: Expanding the Paradigm

    Science.gov (United States)

    Herring, Susan C.

    Are established methods of content analysis (CA) adequate to analyze web content, or should new methods be devised to address new technological developments? This article addresses this question by contrasting narrow and broad interpretations of the concept of web content analysis. The utility of a broad interpretation that subsumes the narrow one is then illustrated with reference to research on weblogs (blogs), a popular web format in which features of HTML documents and interactive computer-mediated communication converge. The article concludes by proposing an expanded Web Content Analysis (WebCA) paradigm in which insights from paradigms such as discourse analysis and social network analysis are operationalized and implemented within a general content analytic framework.

  11. Changes in Hydrogen Content During Steelmaking

    Directory of Open Access Journals (Sweden)

    Vrbek K.

    2015-04-01

    Full Text Available Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF, secondary metallurgy in Ladle Furnace (LF and continuous casting of billets (CC. Hydrogen content during steelmaking of various steel grades and steelmaking technologies was measured. Samples of steel melt from EAF, LF and CC were collected and investigated. Sampling from Electric Arc Furnace and Ladle Furnace was carried out using vacuum pin tubes. Regular measurements of hydrogen content in steel melt were made using Hydris device. Hydrogen content results measured in tundish by Hydris device were compared with results from pin tube samples. Based on the measurement results it was established that hydrogen content during steelmaking increases. The highest values were determined in tundish during casting. Factors that influence the hydrogen content in liquid steel the most were steelmaking technology and alloying elements.

  12. Germanium content in Polish hard coals

    Directory of Open Access Journals (Sweden)

    Makowska Dorota

    2016-01-01

    Full Text Available Due to the policy of the European Union, it is necessary to search for new sources of scarce raw materials. One of these materials is germanium, listed as a critical element. This semi-metal is widely used in the electronics industry, for example in the production of semiconductors, fibre optics and solar cells. Coal and fly ash from its combustion and gasification for a long time have been considered as a potential source of many critical elements, particularly germanium. The paper presents the results of germanium content determination in the Polish hard coal. 23 coal samples of various coal ranks were analysed. The samples were collected from 15 mines of the Upper Silesian Coal Basin and from one mine of the Lublin Coal Basin. The determination of germanium content was performed with the use of Atomic Absorption Spectrometry with Electrothermal Atomization (GFAAS. The investigation showed that germanium content in the analysed samples was at least twice lower than the average content of this element in the hard coals analysed so far and was in the range of 0.08 ÷ 1.28 mg/kg. Moreover, the content of Ge in the ashes from the studied coals does not exceed 15 mg/kg, which is lower than the average value of Ge content in the coal ashes. The highest content of this element characterizes coals of the Lublin Coal Basin and young coals type 31 from the Vistula region. The results indicate a low utility of the analysed coal ashes as a source of the recovery of germanium. On the basis of the analyses, the lack of the relationship between the content of the element and the ash content in the tested coals was noted. For coals of the Upper Silesian Coal Basin, the relationship between the content of germanium in the ashes and the depth of the seam was observed.

  13. ASSESSMENT OF NUTRIENT CONTENT IN SELECTED DAIRY PRODUCTS FOR COMPLIANCE WITH THE NUTRIENT CONTENT CLAIMS

    Directory of Open Access Journals (Sweden)

    Anna Sadowska-Rociek

    2013-02-01

    Full Text Available The aim of this study was to determine the content of protein, fat, and carbohydrates in selected homogenised cheeses, available on Polish market. Results were compared with the values declared by the manufacturers. The main protein content was equal to 6.6 g/100 g, fat content – 4.7 g/100 g, and carbohydrates content – 11.3 g/100 g. However, content of nutrients varied and depended on the manufacturer and the cheese flavour. Nutrient content claims were often different from the results obtained in our study: protein content resulted from this experiment was generally lower than declared by the manufacturers and obtained in our study fat content was higher than reported at the labels.

  14. Traffic Engineering of Peer-Assisted Content Delivery Network with Content-Oriented Incentive Mechanism

    National Research Council Canada - National Science Library

    MAKI, Naoya; NISHIO, Takayuki; SHINKUMA, Ryoichi; MORI, Tatsuya; KAMIYAMA, Noriaki; KAWAHARA, Ryoichi; TAKAHASHI, Tatsuro

    2012-01-01

    In content services where people purchase and download large-volume contents, minimizing network traffic is crucial for the service provider and the network operator since they want to lower the cost...

  15. Influence of Content Knowledge on Pedagogical Content Knowledge: The Case of Teaching Photosynthesis and Plant Growth

    Science.gov (United States)

    Kapyla, Markku; Heikkinen, Jussi-Pekka; Asunta, Tuula

    2009-01-01

    The aim of the research was to investigate the effect of the amount and quality of content knowledge on pedagogical content knowledge (PCK). The biological content photosynthesis and plant growth was used as an example. The research sample consisted of 10 primary and 10 secondary (biology) teacher students. Questionnaires, lesson preparation task…

  16. Oxalate content of cereals and cereal products.

    Science.gov (United States)

    Siener, Roswitha; Hönow, Ruth; Voss, Susanne; Seidler, Ana; Hesse, Albrecht

    2006-04-19

    Detailed knowledge of food oxalate content is of essential importance for dietary treatment of recurrent calcium oxalate urolithiasis. Dietary oxalate can contribute considerably to the amount of urinary oxalate excretion. Because cereal foods play an important role in daily nutrition, the soluble and total oxalate contents of various types of cereal grains, milling products, bread, pastries, and pasta were analyzed using an HPLC-enzyme-reactor method. A high total oxalate content (>50 mg/100 g) was found in whole grain wheat species Triticum durum (76.6 mg/100 g), Triticum sativum (71.2 mg/100 g), and Triticum aestivum (53.3 mg/100 g). Total oxalate content was comparably high in whole grain products of T. aestivum, that is, wheat flakes and flour, as well as in whole grain products of T. durum, that is, couscous, bulgur, and pasta. The highest oxalate content was demonstrated for wheat bran (457.4 mg/100 g). The higher oxalate content in whole grain than in refined grain cereals suggests that oxalic acid is primarily located in the outer layers of cereal grains. Cereals and cereal products contribute to the daily oxalate intake to a considerable extent. Vegetarian diets may contain high amounts of oxalate when whole grain wheat and wheat products are ingested. Recommendations for prevention of recurrence of calcium oxalate stone disease have to take into account the oxalate content of these foodstuffs.

  17. Quantification of Cannabinoid Content in Cannabis

    Science.gov (United States)

    Tian, Y.; Zhang, F.; Jia, K.; Wen, M.; Yuan, Ch.

    2015-09-01

    Cannabis is an economically important plant that is used in many fields, in addition to being the most commonly consumed illicit drug worldwide. Monitoring the spatial distribution of cannabis cultivation and judging whether it is drug- or fiber-type cannabis is critical for governments and international communities to understand the scale of the illegal drug trade. The aim of this study was to investigate whether the cannabinoids content in cannabis could be spectrally quantified using a spectrometer and to identify the optimal wavebands for quantifying the cannabinoid content. Spectral reflectance data of dried cannabis leaf samples and the cannabis canopy were measured in the laboratory and in the field, respectively. Correlation analysis and the stepwise multivariate regression method were used to select the optimal wavebands for cannabinoid content quantification based on the laboratory-measured spectral data. The results indicated that the delta-9-tetrahydrocannabinol (THC) content in cannabis leaves could be quantified using laboratory-measured spectral reflectance data and that the 695 nm band is the optimal band for THC content quantification. This study provides prerequisite information for designing spectral equipment to enable immediate quantification of THC content in cannabis and to discriminate drug- from fiber-type cannabis based on THC content quantification in the field.

  18. Content-based image and video compression

    Science.gov (United States)

    Du, Xun; Li, Honglin; Ahalt, Stanley C.

    2002-08-01

    The term Content-Based appears often in applications for which MPEG-7 is expected to play a significant role. MPEG-7 standardizes descriptors of multimedia content, and while compression is not the primary focus of MPEG-7, the descriptors defined by MPEG-7 can be used to reconstruct a rough representation of an original multimedia source. In contrast, current image and video compression standards such as JPEG and MPEG are not designed to encode at the very low bit-rates that could be accomplished with MPEG-7 using descriptors. In this paper we show that content-based mechanisms can be introduced into compression algorithms to improve the scalability and functionality of current compression methods such as JPEG and MPEG. This is the fundamental idea behind Content-Based Compression (CBC). Our definition of CBC is a compression method that effectively encodes a sufficient description of the content of an image or a video in order to ensure that the recipient is able to reconstruct the image or video to some degree of accuracy. The degree of accuracy can be, for example, the classification error rate of the encoded objects, since in MPEG-7 the classification error rate measures the performance of the content descriptors. We argue that the major difference between a content-based compression algorithm and conventional block-based or object-based compression algorithms is that content-based compression replaces the quantizer with a more sophisticated classifier, or with a quantizer which minimizes classification error. Compared to conventional image and video compression methods such as JPEG and MPEG, our results show that content-based compression is able to achieve more efficient image and video coding by suppressing the background while leaving the objects of interest nearly intact.

  19. Wave liquefaction in soils with clay content

    DEFF Research Database (Denmark)

    Kirca, Özgür; Sumer, B. Mutlu; Fredsøe, Jørgen

    2012-01-01

    The paper presents the results of an experimental study of the influence of clay content (in silt-clay and sand-clay mixtures) on liquefaction beneath progressive waves. The experiments showed that the influence of clay content is very significant. Susceptibility of silt to liquefaction...... is increased with increasing clay content, up to 30%, beyond which the mixture of silt and clay is not liquefied. Sand may become prone to liquefaction with the introduction of clay, contrary to the general perception that this type of sediment is normally liquefaction resistant under waves....

  20. Carbon Content of Tree Tissues: A Synthesis

    Directory of Open Access Journals (Sweden)

    Adam R. Martin

    2012-06-01

    Full Text Available Assessing the potential for forest carbon (C capture and storage requires accurate assessments of C in live tree tissues. In the vast majority of local, regional, and global assessments, C content has been assumed to be 50% of tree biomass; however, recent studies indicate that this assumption is not accurate, with substantial variation in C content among tree species as well as among tissue types. Here we conduct a comprehensive literature review to present a global synthesis of C content in tissues of live trees. We found a total of 253 species-specific stem wood C content records in 31 studies, and an additional 34 records of species with C content values of other tissues in addition to stem wood. In all biomes, wood C content varied widely across species ranging from 41.9–51.6% in tropical species, 45.7–60.7% in subtropical/Mediterranean species, and 43.4–55.6% in temperate/boreal species. Stem wood C content varied significantly as a function of biome and species type (conifer, angiosperm. Conifer species exhibited greater wood C content than angiosperm species (50.8 ± 0.7% (95% C.I. and 47.7 ± 0.3%, respectively, a trend that was consistent among all biomes. Although studies have documented differences in C content among plant tissues, interspecific differences in stem wood appear to be of greater importance overall: among species, stem wood C content explained 37, 76, 48, 81, and 63% respectively of the variation in bark, branch, twig, coarse root, and fine root C content values, respectively. In each case, these intraspecific patterns approximated 1:1 linear relationships. Most published stem wood C content values (and all values for other tree tissues are based on dried wood samples, and so neglect volatile C constituents that constitute on average 1.3–2.5% of total C in live wood. Capturing this volatile C fraction is an important methodological consideration for future studies. Our review, and associated data compilation

  1. On Domain Registries and Website Content

    DEFF Research Database (Denmark)

    Schwemer, Sebastian Felix

    2018-01-01

    The link of lawful domain names to unlawful content is a phenomenon that until recently has not been very topical. Traditionally, domain registries have been off the radar of content-related debates. Enforcement efforts, public discourse and academic research have focused on other intermediaries...... such as Internet access service providers, hosting platforms, and websites that link to content. This article shows that in recent years, however, that the (secondary) liability of domain registries and registrars, and more specifically country code top-level domain registries (ccTLDs) for website content, has...... been tested in several EU Member States. The article investigates tendencies in the national lower-court jurisprudence and explores to what extent the liability exemption regime of the E-Commerce Directive applies to domain registries. The analysis concludes that whereas domain registries fall under...

  2. Essential oil content and composition of aniseed

    Directory of Open Access Journals (Sweden)

    Aćimović Milica G.

    2015-01-01

    Full Text Available The field experiments were carried out during 2011 and 2012 in three localities in Vojvodina (Serbia with the application of six different fertilizer regimes aimed at determining the content and composition of the aniseed essential oil. It was found that the average essential oil content of aniseed, obtained by hydrodistillation, was 3.72%. The weather conditions during the year and the locality had a statistically significant effect on the essential oil content, while different source of fertilizers was not statistically significant for the essential oil content and its composition. Essential oil composition was determined using GC-MS technique, and a total of 15 compounds were identified. It was found that the major component was trans-anethole, 94.78% on the average, and the coefficient of variation was 2%. The second most abundant component was γ-himachalene with 2.53% (CV 28%. All other components were present in less than 1%.

  3. Determination of cordycepin content of Cordyceps militaris ...

    African Journals Online (AJOL)

    HPLC) for the determination of cordycepin content of Cordyceps militaris recombinant rice. Methods: Cordyceps militaris recombinant rice was made by mixing brown rice with artificial Chinese caterpillar fungus culture medium powder using ...

  4. Efficiency of tax administration: concepts and contents

    National Research Council Canada - National Science Library

    Proskura Ekaterina Petrovna

    2013-01-01

    The paper investigates the nature and content of the efficiency of tax administration, reviews the different points of view on the concept of fiscal efficiency, discloses factors affecting such efficiency...

  5. shoot water content and reference evapotranspiration for ...

    African Journals Online (AJOL)

    ACSS

    Penmann-Monteith equation and finally calculation of crop evapotranspiration. The objective of this study was to establish crop coefficients and evapotranspiration of different soybean varieties using shoot water content and reference evapotranspiration (ET0). MATERIALS AND METHODS. Reference evapotranspiration.

  6. Application of the technological, pedagogical, and content ...

    African Journals Online (AJOL)

    Application of the technological, pedagogical, and content knowledge framework in a positivist study on the use of ICT in pedagogy by teachers of mathematical disciplines at Makerere University: a conceptual paper.

  7. Tourist maps – definition, types and contents

    National Research Council Canada - National Science Library

    Kacper Jancewicz; Dorota Borowicz

    2017-01-01

    Tourist maps are one of the most common groups of cartographic documents. Their variety in terms of content, subject matter and publication titles is a result of growing popularity of diverse forms of tourism activity...

  8. Swordfish Stomach Content Data, 1989-2000

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Stomach contents were tabulated for 734 swordfish (Xiphias gladius) from the central North Pacific from 1989 to 2000 (most from 1994-1998). The swordfish were...

  9. US-Total Electron Content Product (USTEC)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The US Total Electron Content (US-TEC) product is designed to specify TEC over the Continental US (CONUS) in near real-time. The product uses a Kalman Filter data...

  10. Spatial data content standards for Africa

    CSIR Research Space (South Africa)

    Cooper, Antony K

    2005-11-01

    Full Text Available The authors provided an introduction to data content standards for digital geographical information in this presentation, and summarised their assessment of 170 standards that they identified as candidates for further examination. Of these...

  11. Soundtrack contents and depicted sexual violence.

    Science.gov (United States)

    Pfaus, J G; Myronuk, L D; Jacobs, W J

    1986-06-01

    Male undergraduates were exposed to a videotaped depiction of heterosexual rape accompanied by one of three soundtracks: the original soundtrack (featuring dialogue and background rock music), relaxing music, or no sound. Subjective reports of sexual arousal, general enjoyment, perceived erotic content, and perceived pornographic content of the sequence were then provided by each subject. Results indicated that males exposed to the videotape accompanied by the original soundtrack found the sequence significantly more pornographic than males exposed to the sequence accompanied by either relaxing background music or no sound. Ratings of sexual arousal, general enjoyment, and the perceived erotic content, however, did not differ significantly across soundtrack conditions. These results are compatible with the assertion that the content of a video soundtrack may influence the impact of depicted sexual violence.

  12. Study of malondialdehyde (MDA) content, superoxide dismutase ...

    African Journals Online (AJOL)

    Study of malondialdehyde (MDA) content, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities in chickens infected with avian infectious bronchitis virus. HF Wang, XH Zhong, W Shi, B Guo ...

  13. Apple wine processing with different nitrogen contents

    Directory of Open Access Journals (Sweden)

    Aline Alberti

    2011-06-01

    Full Text Available The aim of this work was to evaluate the nitrogen content in different varieties of apple musts and to study the effect of different nitrogen concentrations in apple wine fermentation. The average total nitrogen content in 51 different apples juices was 155.81 mg/L, with 86.28 % of the values above 100 mg/L. The apple must with 59.0, 122.0 and 163.0 mg/L of total nitrogen content showed the maximum population of 2.05x 10(7; 4.42 x 10(7 and 8.66 x 10(7 cell/mL, respectively. Therefore, the maximum fermentation rates were dependent on the initial nitrogen level, corresponding to 1.4, 5.1 and 9.2 g/L.day, respectively. The nitrogen content in the apple musts was an important factor of growth and fermentation velocity.

  14. 36 CFR 294.14 - Petition contents.

    Science.gov (United States)

    2010-07-01

    ...; protecting human health and safety; reducing hazardous fuels and restoring essential wildlife habitats... biology, fish and wildlife management, forest management, outdoor recreation, and other important... environmental analysis for a rulemaking process. (b) The petition contents described in paragraphs (a)(1...

  15. [Possibilities of standardized qualitative content analysis].

    Science.gov (United States)

    Wiedemann, P M

    1984-01-01

    This paper aims to develop further content analysis with reference to recent models of communication (pragmalinguistics, conversational analysis, and theory of texts). The central thesis is that any content analysis of linguistic symbols must include the conditions of their realization in the spoken discourse. Accordingly, the concepts for analyzing discourse are introduced which serve as the basis for the critique of traditional content analysis in psychotherapeutic research and indicate future perspectives. The first part presents concepts for analyzing spoken language: a model of the formal organization of speech, speech act theory, and a model for analyzing macrostructures in texts. In the second part the discoveries and problems of content analysis are discussed and evaluated with reference to these concepts.

  16. Cultural Archetype Contents for the Traditional Wedding

    National Research Council Canada - National Science Library

    In Hee Ahn

    2012-01-01

    This research aims to perform a contextual study of the wedding customs, wedding procedures, and wedding costumes included in Korean traditional wedding culture, making use of cultural contents which...

  17. INFORMATION SYSTEMS AUDIT CURRICULA CONTENT MATCHING

    Directory of Open Access Journals (Sweden)

    Vasile-Daniel CARDOȘ

    2014-11-01

    Full Text Available Financial and internal auditors must cope with the challenge of performing their mission in technology enhanced environment. In this article we match the information technology description found in the International Federation of Accountants (IFAC and the Institute of Internal Auditors (IIA curricula against the Model Curriculum issued by the Information Systems Audit and Control Association (ISACA. By reviewing these three curricula, we matched the content in the ISACA Model Curriculum with the IFAC International Education Practice Statement 2 and the IIAs’ Global Model Internal Audit Curriculum. In the IFAC and IIA Curriculum there are 16 content elements, out of 19 possible, which match, in their description, the ISACA Model Curriculum’s content. We noticed that a candidate who graduates an IFAC or IIA compliant program acquire IS auditing competences similar to the specific content of the ISACA model curriculum but less than the requirements for a professional information systems auditor.

  18. Decoding the content of delayed intentions.

    Science.gov (United States)

    Gilbert, Sam J

    2011-02-23

    Rostrolateral prefrontal cortex (RLPFC) plays a key role in our ability to postpone the execution of intended behaviors until after another activity has been performed. However, it is poorly understood in computational terms. One crucial question is whether RLPFC represents the content of delayed intentions or plays a nonspecific role. In this human functional magnetic resonance imaging study (n = 32), RLPFC was active while participants stored delayed intentions during a distracting ongoing task. Multivariate analysis showed that the intended cue for future action and the intended behavior could be decoded from distinct posterior brain regions. However, the content of intentions could not be decoded from RLPFC itself. Functional connectivity analysis showed that RLPFC increased its coupling with content-representing regions during intention storage. Furthermore, trials with relatively high RLPFC activity were associated with enhanced decoding. Thus, RLPFC may enable realization of delayed intentions via interactions with posterior brain regions, which represent their content.

  19. A Review of Technological Pedagogical Content Knowledge

    National Research Council Canada - National Science Library

    Ching Sing Chai; Joyce Hwee Ling Koh; Chin-Chung Tsai

    2013-01-01

    ...). The TPACK framework is an extension of the pedagogical content knowledge (Shulman, 1986). TPACK is the type of integrative and transformative knowledge teachers need for effective use of ICT in classroom...

  20. Learning content and the creative cloud

    NARCIS (Netherlands)

    Specht, Marcus

    2012-01-01

    Specht, M. (2012, 18 April). Learning content and the creative cloud. Presentation given at the workshop for creative cloud CLICK workshop Faculteit Bouwkunde & Architectuur TU Delft, Delft, The Netherlands.

  1. Automatic web content categorization machine learning

    OpenAIRE

    Mutsuda Zapater, Masumi

    2012-01-01

    This Master Thesis consists of designing and implementing a web content classification application which include well-known algorithms for document classification such as Naïve Bayes and Maximum Entropy and inspired by proven tools like Rapidminer.

  2. Analysis, Retrieval and Delivery of Multimedia Content

    CERN Document Server

    Cavallaro, Andrea; Leonardi, Riccardo; Migliorati, Pierangelo

    2013-01-01

    Covering some of the most cutting-edge research on the delivery and retrieval of interactive multimedia content, this volume of specially chosen contributions provides the most updated perspective on one of the hottest contemporary topics. The material represents extended versions of papers presented at the 11th International Workshop on Image Analysis for Multimedia Interactive Services, a vital international forum on this fast-moving field. Logically organized in discrete sections that approach the subject from its various angles, the content deals in turn with content analysis, motion and activity analysis, high-level descriptors and video retrieval, 3-D and multi-view, and multimedia delivery. The chapters cover the finest detail of emerging techniques such as the use of high-level audio information in improving scene segmentation and the use of subjective logic for forensic visual surveillance. On content delivery, the book examines both images and video, focusing on key subjects including an efficient p...

  3. Consumer Preferences of Travel Web Content

    OpenAIRE

    Yang, Mari

    2015-01-01

    The purpose of this Bachelor’s Thesis was to study the web content preferences of users in online travel. The research was done for the commissioning party, TripAhead, a start-up online travel organizer, in order to help get insight into the consumer opinions and preferences. Moreover, the thesis researches which web content features affect the consumer the most into choosing a holiday destination, and essentially purchasing a service or product from a travel website. Additionally, the travel...

  4. 29 CFR § 102.12 - Contents.

    Science.gov (United States)

    2017-07-01

    ... 29 Labor 2 2017-07-01 2017-07-01 false Contents. § 102.12 Section § 102.12 Labor Regulations Relating to Labor NATIONAL LABOR RELATIONS BOARD RULES AND REGULATIONS, SERIES 8 Procedure Under Section 10(A) to (I) of the Act for the Prevention of Unfair Labor Practices § 102.12 Contents. (a) A charge...

  5. 169 CONTENT NORMATIVITY AND THE INTERDEPENDENCY OF ...

    African Journals Online (AJOL)

    Tracie1

    an argument for the thesis that mental content is constitutively normative. The argument is criticized Лy a. numЛer of critics. In this paper I will address a key. oЛУection against the normativity of content thesis proposed Лy Miller (2008). In section one I will reformulate Boghossian's argument for the thesis in details. In section ...

  6. WEB CONTENT EXTRACTION USING HYBRID APPROACH

    OpenAIRE

    K. Nethra; Anitha, J.; G. Thilagavathi

    2014-01-01

    The World Wide Web has rich source of voluminous and heterogeneous information which continues to expand in size and complexity. Many Web pages are unstructured and semi-structured, so it consists of noisy information like advertisement, links, headers, footers etc. This noisy information makes extraction of Web content tedious. Many techniques that were proposed for Web content extraction are based on automatic extraction and hand crafted rule generation. Automatic extraction technique is do...

  7. Cannabis Mobile Apps: A Content Analysis

    OpenAIRE

    Ramo, Danielle E.; Popova, Lucy; Grana, Rachel; Zhao, Shirley; Chavez, Kathryn

    2015-01-01

    Background Mobile technology is pervasive and widely used to obtain information about drugs such as cannabis, especially in a climate of rapidly changing cannabis policy; yet the content of available cannabis apps is largely unknown. Understanding the resources available to those searching for cannabis apps will clarify how this technology is being used to reflect and influence cannabis use behavior. Objective We investigated the content of 59 cannabis-related mobile apps for Apple and Androi...

  8. USER GENERATED CONTENT IN TOURISM MARKETING

    OpenAIRE

    ALİKILIÇ, DR. ÖZLEM

    2008-01-01

    This article is based on the idea that user generated content is of fundamental importance in tourism and travel industry to understand the role of consumer generated messages. This paper also describes interpersonal influences mean for user generated content and also word of mouth (WOM) which reflect cost effective for tourism and travel industry but as well as the real crisis lead by the customer and discusses the new technological and ethical considerations facing tourism and travel industry

  9. DNA content in human uterine cervical dysplasias.

    Science.gov (United States)

    Palan, P R; Romney, S L

    1979-01-01

    The DNA content of nuclei extracted from separate biopsies of normal cervical epithelium and from dysplastic sites in the same patient was determined biochemically. Mean percentage increase in the DNA content of dysplasias (mild: 143.3 +/- 14.9; moderate: 225.8 +/- 51.1; and severe: 359.8 +/- 45.8) was found to be statistically significant (F-Test: p less than 0.001) over the normal values in control cervical tissues.

  10. Designing Lesson Content in Adaptive Learning Environments

    OpenAIRE

    Danijela Milosevic

    2006-01-01

    Online learning is widely spreading and adaptive learning environments are increasing its potentials. We present a scenario of adapting learning content towards individual student characteristics taking into consideration his/her learning style type and subject matter motivation level. We use an ontology based student model for storing student information. The scenario of designing lesson content tailored to individual student needs is presented as a cross section of learning style and motiva...

  11. Are delusional contents replayed during dreams?

    Science.gov (United States)

    D'Agostino, Armando; Aletti, Giacomo; Carboni, Martina; Cavallotti, Simone; Limosani, Ivan; Manzone, Marialaura; Scarone, Silvio

    2013-09-01

    The relationship between dream content and waking life experiences remains difficult to decipher. However, some neurobiological findings suggest that dreaming can, at least in part, be considered epiphenomenal to ongoing memory consolidation processes in sleep. Both abnormalities in sleep architecture and impairment in memory consolidation mechanisms are thought to be involved in the development of psychosis. The objective of this study was to assess the continuity between delusional contents and dreams in acutely psychotic patients. Ten patients with a single fixed and recurring delusional content were asked to report their dreams during an acute psychotic break. Sixteen judges with four different levels of acquaintance to the specific content of the patients' delusions were asked to group the dreams, expecting that fragments of the delusional thought would guide the task. A mathematical index (f,t) was developed in order to compare correct groupings between the four groups of judges. Most judges grouped the dreams slightly above chance level and no relevant differences could be found between the four groups [F(3,12)=1.297; p=n.s.]. Scoring of dreams for specific delusional themes suggested a continuity in terms of dream and waking mentation for two contents (Grandiosity and Religion). These findings seem to suggest that at least some delusional contents recur within patients' dreams. Future studies will need to determine whether such continuity reflects ongoing consolidation processes that are relevant to current theories of delusion formation and stabilization. Copyright © 2013 Elsevier Inc. All rights reserved.

  12. Content validity of an acupuncture sensation questionnaire.

    Science.gov (United States)

    Kim, Yunju; Park, Jongbae; Lee, Hyejung; Bang, Heejung; Park, Hi-Joon

    2008-10-01

    The aims of this study are to collect acupuncture sensations reflecting real-life patients' experiences using qualitative methods and to test the content validity whether their sensations are proper candidates for de qi. The items for the Acupuncture Sensation Questionnaire (ASQ) were developed through in-depth interview, focus group discussion, and expert panel judgment for content validity. Descriptions of sensations were collected and categorized according to the three stages of acupuncture: insertion, manipulation, and retention of the needle. Those expressions chosen after review by a focus group were tested for the content validity by 10 expert panel judges. The content validity index (CVI) on each item was calculated, and the items that showed over 0.8 of CVI, representing 80% of consent by experts, were constituted for the ASQ. Sixty-one (61) in-depth interviews from 48 patients in the acupuncture clinic were analyzed. Thirty-three (33) expressions for the needle insertion, 59 for the manipulation, and 29 for the retention were collected. After the discussion by a focus group, the expressions were consolidated into 57 items (15 for insertion, 26 for manipulation, and 16 for retention) and they were tested for the content validity. In the final version, 19 items (3, 9, and 7, respectively) were listed. The items were found to be reflecting real-life experiences and expanded from the traditional acupuncture sensations. The newly developed ASQ incorporated real acupuncture experiences and has sufficient content validity for de qi.

  13. The Effect of Wheat Starch Addition Level on Moisture Content, Fat Content, Protein Content, Microstructure, and Organoleptic Quality of Processed Gouda Cheese

    Directory of Open Access Journals (Sweden)

    Eka Fitasari

    2012-02-01

    Full Text Available The research was conducted to find out the optimum level of wheat starch to produce processed cheese with good quality based on its moisture content, fat content, protein content, microstructure, and organoleptic quality. The result showed that the different level of wheat starch gave highly significant effect (p<0.01 on moisture content, fat content, protein content, and panelist preference to texture, taste, and smell. It is concluded that wheat starch decrease moisture content, fat content, protein content, and panelist preference to texture, taste and smell processed Gouda cheese. It is suggested to add 10 % wheat starch to produce processed cheese because the product met the existing standard of commercial product chemically and physically, except fat content and protein content. Further research on the production of processed cheese is suggested by adding fat and protein sources to meet the standard of fat and protein content.   Keywords : processed cheese, wheat starch

  14. A study of real-time content marketing : formulating real-time content marketing based on content, search and social media

    OpenAIRE

    Nguyen, Thi Kim Duyen

    2015-01-01

    The primary objective of this research is to understand profoundly the new concept of content marketing – real-time content marketing on the aspect of the digital marketing experts. Particularly, the research will focus on the real-time content marketing theories and how to build real-time content marketing strategy based on content, search and social media. It also finds out how marketers measure and keep track of conversion rates of their real-time content marketing plan. Practically, th...

  15. Aluminum Content of Neonatal Parenteral Nutrition Solutions.

    Science.gov (United States)

    Huston, Robert K; Heisel, Carl F; Vermillion, Benjamin R; Christensen, J Mark; Minc, Leah

    2017-04-01

    Calcium chloride (CaCl2) has been the only calcium additive available in the United States that has a low aluminum (Al) content. Calcium gluconate in glass vials (CaGluc-Gl) has a high Al content while calcium gluconate in plastic vials (CaGluc-Pl) has a low Al content. The purpose of this study was to measure Al concentrations in neonatal parenteral nutrition (PN) solutions prepared using various calcium additives. Samples of solutions compounded with CaCl2 or CaGluc-Gl and sodium phosphate (NaPhos) as well as CaGluc-Pl and sodium glycerophosphate (NaGP) with and without cysteine were analyzed for Al content. Samples of the cysteine and calcium gluconate additives were also sent for analysis. Solutions containing CaCl2 and CaGlu-Pl had mean Al concentrations of 1.2-2.3 mcg/dL, while those with CaGlu-Gl had mean concentrations of 14.6-15.1 mcg/dL. Solutions made with NaGP were low in Al content. The measured Al content of 2 lots of the cysteine additive were 168 ± 23 mcg/L and 126 ± 5 mcg/L. The Al concentration equalled 2730 ± 20 mcg/L for the CaGlu-Gl additive and 310 ± 80 mcg/L for the CaGlu-Pl additive. The study indicates that solutions containing CaCl2 or CaGluc-Pl and NaPhos or NaGP are low in Al content. Using these options for calcium and phosphate additives can limit aluminum intake from neonatal PN to levels within the Food and Drug Administration guideline of ≤5 mcg/kg/d.

  16. Increased cerebral water content in hemodialysis patients.

    Directory of Open Access Journals (Sweden)

    Kathrin Reetz

    Full Text Available Little information is available on the impact of hemodialysis on cerebral water homeostasis and its distribution in chronic kidney disease. We used a neuropsychological test battery, structural magnetic resonance imaging (MRI and a novel technique for quantitative measurement of localized water content using 3T MRI to investigate ten hemodialysis patients (HD on a dialysis-free day and after hemodialysis (2.4±2.2 hours, and a matched healthy control group with the same time interval. Neuropsychological testing revealed mainly attentional and executive cognitive dysfunction in HD. Voxel-based-morphometry showed only marginal alterations in the right inferior medial temporal lobe white matter in HD compared to controls. Marked increases in global brain water content were found in the white matter, specifically in parietal areas, in HD patients compared to controls. Although the global water content in the gray matter did not differ between the two groups, regional increases of brain water content in particular in parieto-temporal gray matter areas were observed in HD patients. No relevant brain hydration changes were revealed before and after hemodialysis. Whereas longer duration of dialysis vintage was associated with increased water content in parieto-temporal-occipital regions, lower intradialytic weight changes were negatively correlated with brain water content in these areas in HD patients. Worse cognitive performance on an attention task correlated with increased hydration in frontal white matter. In conclusion, long-term HD is associated with altered brain tissue water homeostasis mainly in parietal white matter regions, whereas the attentional domain in the cognitive dysfunction profile in HD could be linked to increased frontal white matter water content.

  17. Oxygen content and oxidation in frying oil.

    Science.gov (United States)

    Totani, Nagao; Yawata, Miho; Mori, Terutoshi; Hammond, Earl G

    2013-01-01

    The relation between oxygen content and oxidation was investigated in frying oils. When canola oil, a canola-soybean oil blend or a trioctanoylglycerol (glycerol tricaprate) sample were heated with stirring, their dissolved oxygen content decreased abruptly at about 120°C and the carbonyl values (CV) increased gradually with heating and reached values of 6-7 at 180°C in the blended and canola oils, while the CV of trioctanoylglycerol was zero up to 150°C. Probably this abrupt decrease in oxygen content above 120°C can be attributed to the solubility of oxygen in oil rather than because of oxidative reactions. The oxygen content of oil that has been stripped of part of its oxygen, increased at temperatures between 25 and 120°C. In oils that have lost their oxygen by being heated to 180°C, standing at room temperature will slowly restore their oxygen content as the oil cools. Intermittent simple heating of oil promoted oxygen absorbance during cooling periods and standing times, and it resulted in an elevated content of polar compounds (PC). Domestic deep-frying conditions also favor the presence of oxygen in oil below 120°C and during the oil's long standing at room temperature. The oxygen content in oil was low during deep-frying, but oxidation was active at the oil/air interface of bubbles generated by foods being fried. Repeated use of oil at temperatures between 25-180°C resulted in oil with low oxygen values.

  18. The relationship between calcium content and aluminum and silicon content in uraemic rats.

    Science.gov (United States)

    Hosokawa, S; Yoshida, O

    1989-01-01

    The relationship between calcium (Ca) content and aluminum (Al) and silicon (Si) content in uraemic rats was examined. Significant correlations with serum [Ca] x [Pi] products and serum Al levels and serum Si values were found (r = 0.73, p less than 0.01). There were significant (r = -0.26, p less than 0.05; r = -0.46, p less than 0.05) relationships between corpuscular [Ca] x [Pi] products and corpuscular Al levels and corpuscular Si values. We found that renal tissue [Ca] x [Pi] products tend to increase with the increase of renal tissue Al content and renal tissue Si content. Serum and corpuscular Al content and Si content can be used as one of the indicators of renal osteodystrophy.

  19. Description of pedagogical content knowledge (PCK) and content knowledge on Muhammadiyah Semarang University's preservice teacher

    Science.gov (United States)

    Astuti, Andari Puji; Wijayatiningsih, Testiana Deni; Azis, Abdul; Sumarti, Sri Susilogati; Barati, Dwi Anggani Linggar

    2017-12-01

    One of the competencies of teachers to be mastered under the constitution is pedagogic competence. This study aims to provide an overview of the pedagogic competence of Preservice teachers through the mastery of Pedagogical Content Knowledge (PCK) and Content knowledge (CK). The research method used is descriptive qualitative, with data retrieval technique through essay tests, questionnaire and interview. The results showed that of the five PCK indicators, only knowledge of learning strategies to teach chemistry already in high category. For Content Knowledge of preservice teachers are in the middle category for indicators of knowledge of disciplinary content, whereas knowledge that alternative frameworks for thinking about the content exist and the knowledge of the relationship between big ideas and the supporting ideas in a content area is in the fair category.

  20. Shear stress regulates occludin content and phosphorylation.

    Science.gov (United States)

    DeMaio, L; Chang, Y S; Gardner, T W; Tarbell, J M; Antonetti, D A

    2001-07-01

    Previous studies determined that shear stress imposed on bovine aortic endothelial cell (BAEC) monolayers increased the hydraulic conductivity (L(P)); however, the mechanism by which shear stress increases L(P) remains unknown. This study tested the hypothesis that shear stress regulates paracellular transport by altering the expression and phosphorylation state of the tight junction protein occludin. The effect of shear stress on occludin content was examined by Western blot analysis. Ten dyn/cm(2) significantly reduced occludin content in a time-dependent manner such that after a 3 h exposure to shear, occludin content decreased to 44% of control. Twenty dyn/cm(2) decreased occludin content to 50% of control and increased L(P) by 4.7-fold after 3 h. Occludin expression and L(P) depend on tyrosine kinase activity because erbstatin A (10 microM) attenuated both the shear-induced decrease in occludin content and increase in L(P). Shear stress increased occludin phosphorylation after 5 min, 15 min, and 3 h exposures. The shear-induced increase in occludin phosphorylation was attenuated with dibutyryl (DB) cAMP (1 mM), a reagent previously shown to reverse the shear-induced increase in L(P). We conclude that shear stress rapidly (shear stress increases L(P).

  1. Discontent with content analysis of online transcripts

    Directory of Open Access Journals (Sweden)

    Judith Guevarra Enriquez

    2009-12-01

    Full Text Available Content analysis has dominated computer-mediated communication and educational technology studies for some time, and a review of its practices applied to online corpus of data or messages is overdue. We are confronted with complexity given the various foci, nuances and models for theorising learning and applying methods. One common suggestion to deal with the complexity in content analysis is a call for standardisation by replication or systematic research studies. This article presents its ‘discontent' with content analysis, discussing the issues and concerns that surround the analysis of online transcripts. It does not attempt to resolve nor provide a definitive answer. Instead, it is an open inquiry into another way of looking at online content. It presents an alternative or perhaps an extension of what we have come to know as content analysis. It argues for the notion of genres as another way of conceptualising online transcripts. It proposes two things: first that in performing transcript analysis, it is worthwhile to think how messages relate to a system of interactions that persists even beyond the online environment; secondly, there is an emergent and recurring metastructuring that is at work in online environments that is worth exploring, instead of imposing structures – models and frameworks that do not fit the emerging communicative practices of participants.

  2. The Taurine Content of Japanese Seaweed.

    Science.gov (United States)

    Kawasaki, Azusa; Ono, Ayuko; Mizuta, Shoshi; Kamiya, Mitsunobu; Takenaga, Takaaki; Murakami, Shigeru

    2017-01-01

    Japanese and South Koreans have a dietary habit of eating seaweed. Although it is known that some seaweed contains taurine, there have been few detailed analyses on the taurine content of seaweed other than the major types of edible seaweed. In the present study, we determined the content of free amino acids, including taurine, in seaweed obtained along the Sea of Japan coast. The taurine content in the seaweed varied according to the species. Among the 29 different types of seaweed that were studied, red algae contained relatively high concentrations of taurine. In contrast, the taurine content was low or undetectable in brown and green algae. The algal alanine level was relatively higher in brown sea algae, which was in sharp contrast to its taurine level. No clear trends were observed with regards to the distribution of the other free amino acids, including aspartic acid, glutamic acid, and phenylalanine. Considering the physiological role of taurine in cellular homeostasis, the algal taurine content may be associated with the growing environment. Taurine-rich red edible algae such as mafunori (Gloiopeltis tenax)/fukurofunori (Gloiopeltis furcata), kabanori (Gracilaria textorii), and ogonori (Gracilaria vermiculophylla) may be used to create functional foods that are rich in naturally occurring taurine.

  3. Energy content of municipal solid waste bales.

    Science.gov (United States)

    Ozbay, Ismail; Durmusoglu, Ertan

    2013-07-01

    Baling technology is a preferred method for temporary storage of municipal solid waste (MSW) prior to final disposal. If incineration is intended for final disposal of the bales, the energy content of the baled MSW gains importance. In this study, nine cylindrical bales containing a mix of different waste materials were constructed and several parameters, including total carbon (TC), total organic carbon (TOC), total Kjeldahl nitrogen, moisture content, loss on ignition, gross calorific value and net calorific value (NCV) were determined before the baling and at the end of 10 months of storage. In addition, the relationships between the waste materials and the energy contents of the bales were investigated by the bivariate correlation analyses. At the end, linear regression models were developed in order to forecast the decrease of energy content during storage. While the NCVs of the waste materials before the baling ranged between 6.2 and 23.7 MJ kg(-1) dry basis, they ranged from 1.0 to 16.4 MJ kg(-1) dry basis at the end of the storage period. Moreover, food wastes exhibited the highest negative correlation with NCVs, whereas plastics have significant positive correlation with both NCVs and TCs. Similarly, TOCs and carbon/nitrogen ratios decreased with the increase in food amounts inside the bales. In addition, textile, wood and yard wastes increase the energy content of the bales slightly over the storage period.

  4. Visual discomfort prediction for stereo contents

    Science.gov (United States)

    He, Shan; Zhang, Tao; Doyen, Didier

    2011-03-01

    The current renaissance of 3D movies has drawn more and more attention from the audience. Three-dimensional television (3DTV) has been expected to be the next advance in television. Studies have shown that different people have different comfort range of depth in a 3D content, especially in 3DTV scenario, wherein much smaller screen sizes and viewing distances in home setup than in theater put more restrictions on the 3D content fed into the 3DTV. As a result, the version of the 3D content sent to home will not satisfy all the people in one family. In this paper, we try to solve this problem by providing a prediction of viewing discomfort of certain input content by certain viewer. Our method is based on the Disparity Discomfort Profile (DDP) built through subjective test for each viewer. The input content is analyzed by studying its disparity distribution. The prediction of discomfort is performed by matching the disparity distribution with the viewer's DDP. Then a mechanism to allow the viewers to adjust the depth range according to their visual comfort profile or viewing preference is used to minimize the discomfort. Experiments show promising results of the proposed method.

  5. Astronomica: Intergating Astronomy Content and Course Management

    Science.gov (United States)

    Impey, C. D.

    2004-12-01

    At the University of Arizona, the www.astronomica.org web site serves 1200 students per semester with a wide array of astronomy content that is integrated into course management capabilities. In addition to articles, an image data bank, news stories, and a linked 1200-term glossary, there is a recommendation system and a natural language question and answer tool. The site is built on an XML architecture, which allows the delivery of content to handheld devices. Another part of the web site serves voiceXML to web-enabled cell phones. The goal is to increase the level of student engagement and serve different learning styles. The site and content are available for use by outside instructors.

  6. TEACHING ADMINISTRATION: PROPOSAL OF THE PROGRAM CONTENT

    Directory of Open Access Journals (Sweden)

    Eduardo Ribeiro Rodrigues

    2016-08-01

    Full Text Available The National Curriculum Guidelines established by MEC (Brazilian Ministry of Education, define the specific areas of vocational training content that should be included in the curricular organization of undergraduate courses in Brazil, without suggesting or detailing which content should be offered in each area. In this sense, this study aims at proposing the course syllabus for the financial area for the undergraduate courses of Management. To achieve this goal, the curriculum matrices and the teaching plans of the financial discipline of the undergraduate courses on Management with the highest grades in ENADE were analyzed. Based on this survey, seven disciplines were elaborated with the professional qualification contents of the area, with 560 hours/class in total, distributed in the curriculum matrix, according to their goals: presentation of corporate finance and personal finance, short and long-term financial decisions, financial economic analysis, financial planning, and financial strategies.

  7. Development of life skills through physics content

    Science.gov (United States)

    Pivarči, Tomáš; Raganová, Janka

    2017-01-01

    The paper deals with students' life skills which the physics teacher should intentionally develop through physics content. An attention is given not only to the physics content and activities connected with it, but also to the development of responsibility, freedom, ability to make decisions, group cooperation, self-evaluation and experience of success. Three activities implemented in the seventh class of the elementary school are described in the paper. Authors describe reasons for class selection, the physics content and the used methods as well as the skills which they decided to purposely develop. They emphasize the importance of activities requiring students' inquiry-based learning and the need to change organization and philosophy of physics teaching at secondary schools. At the end of the paper authors analyze the achievement of objectives, positives as well as negatives of the implemented approaches and propose changes for a future realization.

  8. Video databases: automatic retrieval based on content.

    Science.gov (United States)

    Bolle, R. M.; Yeo, B.-L.; Yeung, M.

    Digital video databases are becoming more and more pervasive and finding video of interest in large databases is rapidly becoming a problem. Intelligent means of quick content-based video retrieval and content-based rapid video viewing is, therefore, an important topic of research. Video is a rich source of data, it contains visual and audio information, and in many cases, there is text associated with the video. Content-based video retrieval should use all this information in an efficient and effective way. From a human perspective, a video query can be viewed as an iterated sequence of navigating, searching, browsing, and viewing. This paper addresses video search in terms of these phases.

  9. Caffeine content of beverages as consumed.

    Science.gov (United States)

    Gilbert, R M; Marshman, J A; Schwieder, M; Berg, R

    1976-02-07

    Quantitative analysis of beverages prepared at home by staff of the Addiction Research Foundation revealed a lower and much more variable caffeine content of both tea and coffee than had been reported in earlier studies, most of which were based on analysis of laboratory-prepared beverages. Median caffeine concentration of 37 home-prepared samples of tea was 27 mg per cup (range, 8 to 91 mg); for 46 coffee samples the median concentration was 74 mg per cup (range, 29 to 176 mg). If tea and coffee as drunk contain less caffeine than generally supposed, the potency of caffeine may be greater than commonly realized, as may the relative caffeine content of certain commercial preparations, including chocolate and colas. The substantial variation in caffeine content emphasizes the need to establish actual caffeine intake in clinical, epidemiologic and experimental investigations of caffeine effects.

  10. Scheduling support for transactional memory contention management

    DEFF Research Database (Denmark)

    Maldonado, Walther; Marler, Patrick; Felber, Pascal

    2010-01-01

    Transactional Memory (TM) is considered as one of the most promising paradigms for developing concurrent applications. TM has been shown to scale well on >multiple cores when the data access pattern behaves "well," i.e., when few conflicts are induced. In contrast, data patterns with frequent write......-management has been proposed for increasing TM efficiency under high-contention [2, 5, 19]. However, only user-level schedulers have been considered. In this work, we propose, implement and evaluate several novel kernel-level scheduling support mechanisms for TM contention management. We also investigate...... different strategies for efficient communication between the kernel and the user-level TM library. To the best of our knowledge, our work is the first to investigate kernel-level support for TM contention management. We have introduced kernel-level TM scheduling support into both the Linux and Solaris...

  11. Towards Player-Driven Procedural Content Generation

    DEFF Research Database (Denmark)

    Shaker, Noor; Yannakakis, Georgios N.; Togelius, Julian

    2012-01-01

    Generating immersive game content is one of the ultimate goals for a game designer. This goal can be achieved by realizing the fact that players’ perception of the same game differ according to a number of factors including: players’ personality, playing styles, expertise and culture background....... While one player might find the game immersive, others may quit playing as a result of encountering a seemingly insoluble problem. One promising avenue towards optimizing the gameplay experience for individual game players is to tailor player experience in real-time via automatic game content generation....... Specifying the aspects of the game that have the major influence on the gameplay experience, identifying the relationship between these aspect and each individual experience and defining a mechanism for tailoring the game content according to each individual needs are important steps towards player...

  12. Data Content Protection for Virtual Libraries Heritage

    Directory of Open Access Journals (Sweden)

    Mihai DOINEA

    2016-01-01

    Full Text Available This paper presents aspects of digital content protection in virtual library systems. The legislation aspects are presented to better emphasize the need of new security mechanisms. Integrated library systems architecture is presented with focus on their main purpose, manipulating and rendering digital content to end-users. The cultural heritage stored in such systems is an important asset that needs to be protected against malicious manipulation. The characteristics of a smart virtual library, supported by an integrated library system, are analyzed and a security model is proposed for implementation, based on its particularities. The model aims to be an interface between the interactions of anonymous users with the Online Public Access Catalog of a virtual library that assures the protection of digital content. Conclusions are drawn to better support the idea of cultural persistence by the use of Information Systems.

  13. Quantitative measurements of autobiographical memory content.

    Directory of Open Access Journals (Sweden)

    Robert S Gardner

    Full Text Available Autobiographical memory (AM, subjective recollection of past experiences, is fundamental in everyday life. Nevertheless, characterization of the spontaneous occurrence of AM, as well as of the number and types of recollected details, remains limited. The CRAM (Cue-Recalled Autobiographical Memory test (http://cramtest.info adapts and combines the cue-word method with an assessment that collects counts of details recalled from different life periods. The SPAM (Spontaneous Probability of Autobiographical Memories protocol samples introspection during everyday activity, recording memory duration and frequency. These measures provide detailed, naturalistic accounts of AM content and frequency, quantifying essential dimensions of recollection. AM content (∼20 details/recollection decreased with the age of the episode, but less drastically than the probability of reporting remote compared to recent memories. AM retrieval was frequent (∼20/hour, each memory lasting ∼30 seconds. Testable hypotheses of the specific content retrieved in a fixed time from given life periods are presented.

  14. Sugarcane genes associated with sucrose content

    Directory of Open Access Journals (Sweden)

    Vincentz Michel GA

    2009-03-01

    Full Text Available Abstract Background - Sucrose content is a highly desirable trait in sugarcane as the worldwide demand for cost-effective biofuels surges. Sugarcane cultivars differ in their capacity to accumulate sucrose and breeding programs routinely perform crosses to identify genotypes able to produce more sucrose. Sucrose content in the mature internodes reach around 20% of the culms dry weight. Genotypes in the populations reflect their genetic program and may display contrasting growth, development, and physiology, all of which affect carbohydrate metabolism. Few studies have profiled gene expression related to sugarcane's sugar content. The identification of signal transduction components and transcription factors that might regulate sugar accumulation is highly desirable if we are to improve this characteristic of sugarcane plants. Results - We have evaluated thirty genotypes that have different Brix (sugar levels and identified genes differentially expressed in internodes using cDNA microarrays. These genes were compared to existing gene expression data for sugarcane plants subjected to diverse stress and hormone treatments. The comparisons revealed a strong overlap between the drought and sucrose-content datasets and a limited overlap with ABA signaling. Genes associated with sucrose content were extensively validated by qRT-PCR, which highlighted several protein kinases and transcription factors that are likely to be regulators of sucrose accumulation. The data also indicate that aquaporins, as well as lignin biosynthesis and cell wall metabolism genes, are strongly related to sucrose accumulation. Moreover, sucrose-associated genes were shown to be directly responsive to short term sucrose stimuli, confirming their role in sugar-related pathways. Conclusion - Gene expression analysis of sugarcane populations contrasting for sucrose content indicated a possible overlap with drought and cell wall metabolism processes and suggested signaling and

  15. The Role of Content Aggregators In GEOValue

    Science.gov (United States)

    Wright, D. J.; Breyer, S.; Hogeweg, M.; Foust, J.; Jordan, L.; Plunkett, G.

    2016-12-01

    Data (aka content) in the form of numbers or layers, and transformed into information by way of maps, images, graphs, charts, tables, even stories, are foundational for a myriad of decision-makers. Recent advances in information technology, as well as civil remote sensing of the Earth, are rapidly allowing us to advance beyond mere static data collection and archiving, further enabling information awareness and understanding, and leading us towards knowledge and better decision making. However, such volumes, velocities, and varieties of data streams also bring with them serious dilemmas with regard to effective organization, cataloging, and easy access. This is where the role of aggregator comes in, with their provision of the necessary sustainability and reliability of information via proven, well-engineered platforms, all with the necessary interoperability and openness as guaranteed through the adoption of established standards. Information technology (IT) giants such as Google, Facebook, IBM and Apple are well known for aggregating just about every aspect of life in modern society, from our music to our mood swings. A use case of the Environmental Systems Research Institute (aka Esri) is presented as a geospatial aggregator. It has over the years, compiled, assembled and produced a carefully curated library of public content into a global "Living Atlas of the World," organized into different themes such as Earth observation, transportation, demographics, natural hazards, ecological land units, elevation, and more. Among a myriad of decision scenarios with this content to be presented is the tracking of sea ice in the Arctic, estimating potential impact to shipping lanes or coastal infrastructure, and forecasting future conditions. Esri as the main aggregator of Living Atlas content continues to welcome not only contributors who will publish new content to be included in this global Atlas, but fellow curators who will assist in reviewing, organizing, and even

  16. Unsupervised Segmentation Methods of TV Contents

    Directory of Open Access Journals (Sweden)

    Elie El-Khoury

    2010-01-01

    Full Text Available We present a generic algorithm to address various temporal segmentation topics of audiovisual contents such as speaker diarization, shot, or program segmentation. Based on a GLR approach, involving the ΔBIC criterion, this algorithm requires the value of only a few parameters to produce segmentation results at a desired scale and on most typical low-level features used in the field of content-based indexing. Results obtained on various corpora are of the same quality level than the ones obtained by other dedicated and state-of-the-art methods.

  17. Praxis II mathematics content knowledge test (0061)

    CERN Document Server

    McCune, Ennis Donice

    2007-01-01

    Your guide to a higher score on the Praxis II?: Mathematics Content Knowledge Test (0061) Why CliffsTestPrep Guides? Go with the name you know and trust Get the information you need--fast! Written by test-prep specialists About the contents: Introduction * Overview of the exam * How to use this book * Proven study strategies and test-taking tips Part I: Subject Review * Focused review of all exam topics: arithmetic and basic algebra, geometry, trigonometry, analytic geometry, functions and their graphs, calculus, probability and statistics, discrete mathematics, linear algebra, compute

  18. Practical guide to content delivery networks

    CERN Document Server

    Held, Gilbert

    2005-01-01

    With a practical and organized approach to learning and implementation, A Practical Guide to Content Delivery Networks presents a step-by-step process for building a highly available and highly scalable content delivery network (CDN). CDN refers to the infrastructure behind any service that provides utility or access to data to an end user. This book offers terminology, tactics, potential problems to avoid, and individual layers of design, providing clear understanding of the framework for CDNs using a structural and visual approach. The text emphasizes a best-of-breed strategy, allowing a tec

  19. CH-TRU Waste Content Codes

    Energy Technology Data Exchange (ETDEWEB)

    Washington TRU Solutions LLC

    2008-01-16

    The CH-TRU Waste Content Codes (CH-TRUCON) document describes the inventory of the U.S. Department of Energy (DOE) CH-TRU waste within the transportation parameters specified by the Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH-TRAMPAC). The CH-TRAMPAC defines the allowable payload for the Transuranic Package Transporter-II (TRUPACT-II) and HalfPACT packagings. This document is a catalog of TRUPACT-II and HalfPACT authorized contents and a description of the methods utilized to demonstrate compliance with the CH-TRAMPAC. A summary of currently approved content codes by site is presented in Table 1. The CH-TRAMPAC describes "shipping categories" that are assigned to each payload container. Multiple shipping categories may be assigned to a single content code. A summary of approved content codes and corresponding shipping categories is provided in Table 2, which consists of Tables 2A, 2B, and 2C. Table 2A provides a summary of approved content codes and corresponding shipping categories for the "General Case," which reflects the assumption of a 60-day shipping period as described in the CH-TRAMPAC and Appendix 3.4 of the CH-TRU Payload Appendices. For shipments to be completed within an approximately 1,000-mile radius, a shorter shipping period of 20 days is applicable as described in the CH-TRAMPAC and Appendix 3.5 of the CH-TRU Payload Appendices. For shipments to WIPP from Los Alamos National Laboratory (LANL), Nevada Test Site, and Rocky Flats Environmental Technology Site, a 20-day shipping period is applicable. Table 2B provides a summary of approved content codes and corresponding shipping categories for "Close-Proximity Shipments" (20-day shipping period). For shipments implementing the controls specified in the CH-TRAMPAC and Appendix 3.6 of the CH-TRU Payload Appendices, a 10-day shipping period is applicable. Table 2C provides a summary of approved content codes and corresponding shipping categories for "Controlled Shipments

  20. Deciphering Individuals’ Preference for User Generated Content

    DEFF Research Database (Denmark)

    Liu, Fei; Xiao, Bo; Lim, Eric

    2015-01-01

    The explosive growth of user generated content presents a window of opportunity for online service providers (i.e., online review website) to utilize both forms of review information, namely numerical rating and opinionated review to facilitate trust building with users. Nevertheless, users’ trust...... online consumer review. To empirically validate our research mode, we conducted a field study on a custom developed online review website with a sample of 170 college students. Results suggest that dissonance between numerical rating and opinionated review, as well as individuals’ preferences for self......-reference and content relevance when processing online review information moderate the positive relationship between online consumer review and trust....

  1. Coalbed gas content simulation test and application

    Energy Technology Data Exchange (ETDEWEB)

    Zhou, S. [New Star Petroleum Company, Zhengzhou (China). North China Petroleum Bureau

    2002-10-01

    With a high-pressure canister and accurate thermoregulation system of IS-100 isotherm instrument and an electronic flow meter, a coalbed gas content simulation method is established. A control program is combined with it to control data acquisition. The method simulates the whole process of gas content measurement from coring to the completion of desorption. It enables the understanding of gas desorption regularities, and for obtaining the volume of gas loss at any one time. The study would be useful for comparing the various approaches of calculating gas loss volume. 3 refs., 5 figs.

  2. Sharing of Alcohol-Related Content on Social Networking Sites: Frequency, Content, and Correlates.

    Science.gov (United States)

    Erevik, Eilin K; Torsheim, Torbjørn; Vedaa, Øystein; Andreassen, Cecilie S; Pallesen, Ståle

    2017-05-01

    The present study aimed to explore students' reports of their sharing of alcohol-related content on different social networking sites (i.e., frequency of sharing and connotations of alcohol-related posts), and to identify indicators of such posting. Students at the four largest institutions for higher education in Bergen, Norway, were invited to participate in an Internet-based survey. The sample size was 11,236 (a 39.4% response rate). The survey included questions about disclosure of alcohol-related content on social networking sites, alcohol use (using the Alcohol Use Disorders Identification Test), personality factors (using the Mini-IPIP), and demographic characteristics. Binary logistic regressions were used to analyze indicators of frequent sharing of alcohol-related content depicting positive and negative aspects of alcohol use. A majority of the students had posted alcohol-related content (71.0%), although few reported having done so frequently. Positive aspects of alcohol use (e.g., enjoyment or social community) were most frequently shared. Young, single, and extroverted students with high alcohol consumption were more likely to report frequent sharing of alcohol-related content. Positive attitudes toward posting alcohol-related content and reports of exposure to such content particularly increased the likelihood of one's own posting of alcohol-related content. Positive aspects of alcohol use seem to be emphasized on social networking sites. Sharing of alcohol-related content is associated with heightened alcohol use, which implies that such sites can be relevant for prevention agents. Social influence from social networking sites, such as exposure to others' alcohol-related content, is associated with one's own sharing of similar content.

  3. A Comparison of General and Content-Specific Literacy Strategies for Learning Science Content

    Science.gov (United States)

    Reed, Deborah K.; Whalon, Kelly; Lynn, Devon; Miller, Nicole; Smith, Keely

    2017-01-01

    This study employed an adapted alternating treatments single-case design to explore students' learning of biology content when using a general note-taking (GNT) strategy and a content-specific graphic organizer (CGO) to support reading high school biology texts. The 4 focal participants were 15-18-year-olds committed to a moderate risk juvenile…

  4. Digital content licenses, a barrier to digital content?: A South African ...

    African Journals Online (AJOL)

    Digital content licenses, a barrier to digital content?: A South African survey. C Masango. Abstract. No Abstract. Innovation Vol.34 () 2007: pp. 51-66. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/innovation.v34i1.26533 · AJOL African Journals ...

  5. Content-Based Instruction and Content and Language Integrated Learning: The Same or Different?

    Science.gov (United States)

    Cenoz, Jasone

    2015-01-01

    This article looks at the characteristics of Content-Based Instruction (CBI) and Content and Language Integrated Learning (CLIL) in order to examine their similarities and differences. The analysis shows that CBI/CLIL programmes share the same essential properties and are not pedagogically different from each other. In fact, the use of an L2 as…

  6. 78 FR 23918 - Request for Information Regarding Third Party Testing for Lead Content, Phthalate Content, and...

    Science.gov (United States)

    2013-04-23

    ... From the Federal Register Online via the Government Publishing Office ] CONSUMER PRODUCT SAFETY COMMISSION Request for Information Regarding Third Party Testing for Lead Content, Phthalate Content, and the Solubility of the Eight Elements Listed in ASTM F963-11 Correction In notice document 2013-8858 appearing on...

  7. Digital Broadband Content: Digital Content Strategies and policies. OECD Digital Economy Papers, No. 119

    Science.gov (United States)

    OECD Publishing (NJ1), 2006

    2006-01-01

    The development of digital content raises new issues as rapid technological developments challenge existing business models and government policies. This OECD study identifies and discusses six groups of business and public policy issues and illustrates these with existing and potential OECD Digital Content Strategies and Policies: (1) Innovation…

  8. Beginning History Teachers' Enactment of Pedagogical Content Knowledge through Content Decision-Making

    Science.gov (United States)

    Ellsworth, Tina M.

    2017-01-01

    Pedagogical Content Knowledge exists in some capacity in every teacher. It is more well-developed as the wisdom in practice informs it. In their capacity as curriculum gatekeepers, teachers enact their PCK as they decide which content to teach. But what knowledge is of most worth? How do teachers employ the structures unique to their disciplines…

  9. Understanding Malaysian Pre-Service Teachers Mathematical Content Knowledge and Pedagogical Content Knowledge

    Science.gov (United States)

    Leong, Kwan Eu; Meng, Chew Cheng; Rahim, Suzieleez Syrene Abdul

    2015-01-01

    This article seeks to present findings from the analysis of the TEDS-M reports on the mathematical content knowledge (MCK) and pedagogical content knowledge (PCK) of the pre-service teachers in Malaysia. The main objective of this study was to investigate the level of teaching knowledge attained by the Malaysian pre-service primary and secondary…

  10. Participatory Exploration of Digitalizing Cultural Content

    DEFF Research Database (Denmark)

    Rodil, Kasper; Winschiers-Theophilus, Heike; Koch Kapuire, Gereon

    2014-01-01

    This paper describes a joint investigation of a Herero wedding ceremony as a sample of cultural content to be digitalized. We have through participatory exploration scrutinized embodied media bias and representation with Herero elders in Namibia. One finding is that this method has enabled the el...... the elders to be active agents in the digital portrayal and construction of their culture....

  11. 169 CONTENT NORMATIVITY AND THE INTERDEPENDENCY OF ...

    African Journals Online (AJOL)

    Tracie1

    It is widely held that a concept is normative only if it is constitutive of our understanding of a statement involving it such that the statement entails an ШЮРСЭ. In his papers (2003 2005) Paul Boghossian has developed an argument for the thesis that mental content is constitutively normative. The argument is criticized Лy a.

  12. Deploying Content Management System to enhance State ...

    African Journals Online (AJOL)

    E-governance offers a new way of helping to improve government processes, connect citizens, and build interactions with and within the civil society. The existing system is a semi-static government website with aesthetically attractive homepages, but very little content value. Most of these sites present only “public relations” ...

  13. Carotenoid content, sensory properties and microbiological quality ...

    African Journals Online (AJOL)

    The carotenoid content, sensory properties and microbiological assessment of stored cassava fufu from two cultivars of yellow cassava (TMS 01/1368 and TMS 01/1412) being multiplied for distribution in South-East and South-South Nigeria were investigated using standard techniques. There is scanty information on ...

  14. The CODESRIA Bulletin: A Content Analysis

    African Journals Online (AJOL)

    Prof

    The purpose of this essay is to provide a content analysis of the 316 articles in the. CODESRIA Bulletin, from the ... writing on related topics for the journal, which is the leading publication of the Council for the Development of Social ..... research; leadership, security and governance; and health issues. Also, receiving a good.

  15. Total Mercury content of skin toning creams

    African Journals Online (AJOL)

    Administrator

    2008-04-01

    Apr 1, 2008 ... have also been widely used as preservatives in hand and body creams and lotions; hair shampoos, hair sets and rinses, hair straighteners, hair colour- ing, and other preparations. Journal of Science and Technology, Vol. 28, No. 1, April 2008. 88. Total Mercury content of skin toning creams. Voegborlo et al ...

  16. Feature Analysis for Modeling Game Content Quality

    DEFF Research Database (Denmark)

    Shaker, Noor; Yannakakis, Georgios N.; Togelius, Julian

    2011-01-01

    ’ preferences, and by defining the smallest game session size for which the model can still predict reported emotion with acceptable accuracy. Neuroevolutionary preference learning is used to approximate the function from game content to reported emotional preferences. The experiments are based on a modified...

  17. Differential responses of growth, chlorophyll content, lipid ...

    African Journals Online (AJOL)

    Proline (PRO) and glycine betaine (GB) contents significantly (p<0.05) increase, for all cultivars, in the stressed plants with the highest quantity in Fleur 11 and the lowest in Vanda. Malondialdehyde levels increased under salt stress in the leaves of cv. Vanda but decreased in cvsMbiah, PC 79-79 and Fleur 11 at 100 and ...

  18. Children's Animated TV Programs: A Content Analysis

    Science.gov (United States)

    Lambert, E. Beverley; Clancy, Susan

    2004-01-01

    This study describes the use of content analysis to develop a framework for analysing children's animated television programs (in this case, "Bob the Builder") and as such represents the initial stage of a larger project. Results indicate this popular TV series for preschoolers presents contradictory social messages about the roles of…

  19. Fanpage metrics analysis. "Study on content engagement"

    Science.gov (United States)

    Rahman, Zoha; Suberamanian, Kumaran; Zanuddin, Hasmah Binti; Moghavvemi, Sedigheh; Nasir, Mohd Hairul Nizam Bin Md

    2016-08-01

    Social Media is now determined as an excellent communicative tool to connect directly with consumers. One of the most significant ways to connect with the consumers through these Social Networking Sites (SNS) is to create a facebook fanpage with brand contents and to place different posts periodically on these fanpages. In measuring social networking sites' effectiveness, corporate houses are now analyzing metrics in terms of calculating engagement rate, number of comments/share and likings in fanpages. So now, it is very important for the marketers to know the effectiveness of different contents or posts of fanpages in order to increase the fan responsiveness and engagement rate in the fan pages. In the study the authors have analyzed total 1834 brand posts from 17 international brands of Electronics companies. Data of 9 months (From December 2014 to August 2015) have been collected for analyses, which were available online in the Brand' fan pages. An econometrics analysis is conducted using Eviews 9, to determine the impact of different contents on fanpage engagement. The study picked the four most frequently posted content to determine their impact on PTA (people Talking About) metrics and Fanpage engagement activities.

  20. Soil clay content underlies prion infection odds

    Science.gov (United States)

    David, Walter W.; Walsh, D.P.; Farnsworth, Matthew L.; Winkelman, D.L.; Miller, M.W.

    2011-01-01

    Environmental factors-especially soil properties-have been suggested as potentially important in the transmission of infectious prion diseases. Because binding to montmorillonite (an aluminosilicate clay mineral) or clay-enriched soils had been shown to enhance experimental prion transmissibility, we hypothesized that prion transmission among mule deer might also be enhanced in ranges with relatively high soil clay content. In this study, we report apparent influences of soil clay content on the odds of prion infection in free-ranging deer. Analysis of data from prion-infected deer herds in northern Colorado, USA, revealed that a 1% increase in the clay-sized particle content in soils within the approximate home range of an individual deer increased its odds of infection by up to 8.9%. Our findings suggest that soil clay content and related environmental properties deserve greater attention in assessing risks of prion disease outbreaks and prospects for their control in both natural and production settings. ?? 2011 Macmillan Publishers Limited. All rights reserved.

  1. Measuring the lactose content in milk

    Directory of Open Access Journals (Sweden)

    Vaskova Hana

    2016-01-01

    Full Text Available Raman spectroscopy has become a powerful and popular tool for food systems analyses lately. Based on characteristic vibrations of the studied material, the information on its content and structure can be answered. In the paper, Raman spectroscopy is studied for a purpose of lactose content in milk assessment. Lactose, the milk disaccharide, in a human organism decomposes during digestion by the act of enzyme lactase to more easily digestible monosaccharides – glucose and galactose. The lack of enzyme lactase causes symptoms of lactose intolerance what limits lactose-intolerant individuals in the intake of milk and dairy products. Lactose-free products in the diet can be a solution. Raman spectroscopy offers rapid measurement independent of the number of chemicals and other in the paper listed benefits. Raman spectra of lactose, glucose and galactose exhibit enough differences to distinguish the content of lactose in milk. C-O-H bending mode at 1087 cm-1 is used for lactose quantification. The method accuracy for measuring content of lactose was tested on dried milk droplets. Evaluation of the spectroscopic data was related to two different substances - phenylalanine contained generally in the milk and crystal violet used as an internal standard.

  2. Bird Boxes Build Content Area Knowledge

    Science.gov (United States)

    Cianca, Sherri Ann

    2013-01-01

    This article describes a preservice teacher training in line with meeting the Common Core State Standards for Mathematics (CCSSM) using geometric reasoning, spatial sense, measurement, representation, communication, and problem solving. The author infers that when preservice teachers lack pedagogical content knowledge they cannot successfully…

  3. Tyramine content of South African cheeses.

    Science.gov (United States)

    Sapeika, N; Moodie, I M; Kaplan, E R

    1975-04-05

    The tyramine content of certain South African cheeses has been determined by gas chromatographic analysis. Aged (mature) cheese such as cheddar and Roquefort contain relatively large concentrations of tyramine as compared with other cheese, especially cottage cheese. Foods containing pressor amines must be avoided by certain patients.

  4. Palliative care content on cancer center websites.

    Science.gov (United States)

    Vater, Laura B; Rebesco, Gina; Schenker, Yael; Torke, Alexia M; Gramelspacher, Gregory

    2018-03-01

    Professional guidelines recommend that palliative care begin early in advanced cancer management, yet integration of palliative and cancer care remains suboptimal. Cancer centers may miss opportunities to provide palliative care information online. In this study, we described the palliative care content on cancer center websites. We conducted a systematic content analysis of 62 National Cancer Institute- (NCI) designated cancer center websites. We assessed the content of center homepages and analyzed search results using the terms palliative care, supportive care, and hospice. For palliative and supportive care webpages, we assessed services offered and language used to describe care. Two researchers analyzed all websites using a standardized coding manual. Kappa values ranged from 0.78 to 1. NCI-designated cancer center homepages presented information about cancer-directed therapy (61%) more frequently than palliative care (5%). Ten percent of cancer centers had no webpage with palliative care information for patients. Among centers with information for patients, the majority (96%) defined palliative or supportive care, but 30% did not discuss delivery of palliative care alongside curative treatment, and 14% did not mention provision of care early in the disease process. Cancer center homepages rarely mention palliative care services. While the majority of centers have webpages with palliative care content, they sometimes omit information about early use of care. Improving accessibility of palliative care information and increasing emphasis on early provision of services may improve integration of palliative and cancer care.

  5. WEB CONTENT EXTRACTION USING HYBRID APPROACH

    Directory of Open Access Journals (Sweden)

    K. Nethra

    2014-01-01

    Full Text Available The World Wide Web has rich source of voluminous and heterogeneous information which continues to expand in size and complexity. Many Web pages are unstructured and semi-structured, so it consists of noisy information like advertisement, links, headers, footers etc. This noisy information makes extraction of Web content tedious. Many techniques that were proposed for Web content extraction are based on automatic extraction and hand crafted rule generation. Automatic extraction technique is done through Web page segmentation, but it increases the time complexity. Hand crafted rule generation uses string manipulation function for rule generation, but generating those rules is very difficult. A hybrid approach is proposed to extract main content from Web pages. A HTML Web page is converted to DOM tree and features are extracted and with the extracted features, rules are generated. Decision tree classification and Naïve Bayes classification are machine learning methods used for rules generation. By using the rules, noisy part in the Web page is discarded and informative content in the Web page is extracted. The performance of both decision tree classification and Naïve Bayes classification are measured with metrics like precision, recall, F-measure and accuracy.

  6. Qualitative content analysis of complementary topical therapies ...

    African Journals Online (AJOL)

    In order to alleviate diabetic foot problems, patients sometimes seek complementary therapies outside the professional context. This paper describes the use of complementary remedies as a topical treatment for diabetic foot ulcers among Jordanians. Qualitative content analysis was used to analyse written responses of 68 ...

  7. Organic carbon content of tropical zooplankton

    Digital Repository Service at National Institute of Oceanography (India)

    Nair, V.R.

    In the Zuari and Mandovi estuaries variations in organic carbon of zooplankton are 26.4-38.8 and 24-39.9% of dry weight respectively. Maximum carbon content of estuarine zooplankton is observed in November. Organic carbon in nearshore and oceanic...

  8. Changing National Forest Values: a content analysis.

    Science.gov (United States)

    David N. Bengston; Zhi Xu

    1995-01-01

    Empirically analyzes the evolution of national forest values in recent years. A computerized content analysis procedure was developed and used to analyze the forest value systems of forestry professionals, mainstream environmentalists, and the public. National forest values were found to have shifted significantly over the study period.

  9. Developing Reading Ability in the Content Fields.

    Science.gov (United States)

    Karlin, Robert

    Subject-area teachers are not expected to be reading experts, but they can help students overcome reading difficulties. Students often fail to meet the subject-matter demands due to lack of purpose in reading content, unfamiliarity with technical vocabulary, and the heavy concept load and idea density in the material. Teachers can use reading…

  10. Lectin status, protein contents and ammonium assimilating ...

    African Journals Online (AJOL)

    PRECIOUS

    2009-11-16

    Nov 16, 2009 ... Lectin status, protein contents and ammonium assimilating enzymatic activity of two indigenous cultivars of mulberry species, Morus alba and Morus nigra. Muhammad Zahoor*, Zakia Javaid, Muhammad Ali, Saleem Khan, Farhad Ali and Zahoor A. Swati. Institute of Biotechnology and Genetic Engineering, ...

  11. Lectin status, protein contents and ammonium assimilating ...

    African Journals Online (AJOL)

    activity of the ammonium assimilatory enzyme glutamine synthetase. M. nigra and M. alba extracts contained potent phytoagglutinins in various tissues with highest contents in M. nigra. The leaves and roots of both species of mulberry were used to determine the glutamine synthetase activity and high level of activity was ...

  12. On-Site Pedagogical Content Knowledge Development

    Science.gov (United States)

    Chan, Kennedy Kam Ho; Yung, Benny Hin Wai

    2015-01-01

    Experiences and reflection have long been regarded as a foundation for pedagogical content knowledge (PCK) development. However, little is known about how experienced teachers develop their PCK via reflection-in-action during their moment-to-moment classroom instruction. Drawing upon data sources including classroom observations, semi-structured…

  13. Investigating Pedagogical Content Knowledge-in-Action

    Science.gov (United States)

    Taylan, Rukiye Didem; da Ponte, João Pedro

    2016-01-01

    This article investigates the pedagogical content knowledge (PCK) of a teacher educator who teaches 5th-grade mathematics in a school in the context of a university-school partnership project. PCK is analyzed in a qualitative way through video-taped classroom episodes with focus on interactions between the teacher and the students as well as the…

  14. Pedagogical Content Knowledge in Mathematical Modelling Instruction

    Science.gov (United States)

    Tan, Liang Soon; Ang, Keng Cheng

    2012-01-01

    This paper posits that teachers' pedagogical content knowledge in mathematical modelling instruction can be demonstrated in the crafting of action plans and expected teaching and learning moves via their lesson images (Schoenfeld, 1998). It can also be developed when teachers shape appropriate teaching moves in response to students' learning…

  15. Contents of Education for Sustainable Development

    Directory of Open Access Journals (Sweden)

    D S Ermakov

    2013-12-01

    Full Text Available The essence of education for sustainable development (ESD has been disclosed in this article. The definition of ESD has been formulated. The key approaches to the formation of the ESD curriculum have been designated. The criteria for selecting the content of ESD have been proposed. The feasibility of applying the competency based approach has been shown.

  16. Phytochemical Contents of Five Artemisia Species

    Directory of Open Access Journals (Sweden)

    Murat KURSAT

    2015-12-01

    Full Text Available In the present study, the fatty acid compositions, vitamin, sterol contents and flavonoid constituents of five Turkish Artemisia species (A. armeniaca, A. incana , A. tournefortiana, A. haussknechtii and A. scoparia were determined by GC and HPLC techniques. The results of the fatty acid analysis showed that Artemisia species possess high saturated fatty acid compositions. On the other hand, the studied Artemisia species were found to have low vitamin and sterol contents. Eight flavononids (catechin, naringin, rutin, myricetin, morin, naringenin, quercetin, kaempferol were determined in the present study. It was found that Artemisia species contained high levels of flavonoids. Morin (45.35 ± 0.65 – 1406.79 ± 4.12 μg/g and naringenin (15.32 ± 0.46 – 191.18 ± 1.22 μg/g were identified in all five species. Naringin (268.13 ± 1.52 – 226.43 ± 1.17 μg/g and kaempferol (21.74 ± 0.65 – 262.19 ± 1.38 μg/g contents were noted in the present study. Present research showed that the studied Artemisia taxa have high saturated fatty acids and also rich flavonoid content.

  17. A Content Analysis of Defense Budget Rhetoric

    Science.gov (United States)

    2011-06-01

    1 For example, Lasswell Value Dictionary and Harvard IV-4 Psychological dictionary. Many content analysis computer programs are also now...American academy of political and social science, 546, 59–70. Retrieved from http://www.jstor.org/stable/1048170 Janowitz, M. (1968). Harold D

  18. The Byrne Guide for Inclusionary Cultural Content.

    Science.gov (United States)

    Byrne, Michelle M.; Weddle, Carriette; Davis, Ernestine; McGinnis, Patricia

    2003-01-01

    Describes the development of a guide for evaluating content of nursing instructional materials, including the gender, ethnicity, and multicultural inclusion models used. Outlines six categories of bias: invisibility/omission, stereotyping, imbalance, selectivity, unreality, fragmentation/isolation, and linguistic bias. (Contains 38 references.)…

  19. Transforming existing content into reusable Learning Objects

    NARCIS (Netherlands)

    Doorten, Monique; Giesbers, Bas; Janssen, José; Daniels, Jan; Koper, Rob

    2003-01-01

    Please cite as: Doorten, M., Giesbers, B., Janssen, J., Daniëls, J, & Koper, E.J.R., (2004). Transforming existing content into reusable learning objects. In R. McGreal, Online Education using Learning Objects (pp. 116-127). London: RoutledgeFalmer.

  20. A Progressive Approach to Content Generation

    DEFF Research Database (Denmark)

    Shaker, Mohammad; Shaker, Noor; Togelius, Julian

    2015-01-01

    PCGapproachesarecommonlycategorisedasconstructive,generate- and-test or search-based. Each of these approaches has its distinctive advantages and drawbacks. In this paper, we propose an approach to Content Generation (CG)– in particular level generation – that combines the advantages of construc...

  1. Developing Narrative Interpretation: Structural and Content Analyses

    Science.gov (United States)

    Genereux, Randy; McKeough, Anne

    2007-01-01

    Background: Narrative thought is a primary mode of human cognition that underpins key human capabilities such as meaning-making and social-psychological understanding. Aims: We sought to further our understanding of the development of narrative thought during adolescence, particularly in terms of the structure and content of narrative…

  2. Estimating the import content of Argentine exports

    OpenAIRE

    Anos-Casero, Paloma; de Astarloa, Bernardo Diaz

    2010-01-01

    Despite recent efforts toward collecting evidence of vertical specialization for developed economies, scarce work has been dedicated to developing economies and to Argentina, in particular. The key contribution of this paper is to provide comparable estimates of vertical specialization as reflected in the imported content of exports in Argentina. Drawing on the 1997 input-output matrix for...

  3. Silicon alleviates salt stress, decreases malondialdehyde content ...

    African Journals Online (AJOL)

    STORAGESEVER

    2009-04-20

    Apr 20, 2009 ... stressed barley. One effect of free oxygen radicals accu- mulation in plant cells under stress is lipid peroxidation via oxidation of unsaturated fatty acids leading to .... Effect of different treatments of Si and NaCl on growth and chlorophyll content of R. xhybrida 'Hot lady' in soilless culture. Treatment. Peduncle.

  4. Princess Picture Books: Content and Messages

    Science.gov (United States)

    Dale, Lourdes P.; Higgins, Brittany E.; Pinkerton, Nick; Couto, Michelle; Mansolillo, Victoria; Weisinger, Nica; Flores, Marci

    2016-01-01

    Because many girls develop their understanding of what it means to be a girl from books about princesses, the researchers coded the messages and content in 58 princess books (picture, fairy tales, and fractured fairy tales). Results indicate that gender stereotypes are present in the books--the princesses were more likely to be nurturing, in…

  5. Analytical Study of Physics Education Websites' Content

    Science.gov (United States)

    Elayyan, Shaher R.

    2016-01-01

    The current study is compatible with the scientific mobility in dealing with the Internet as a source of knowledge. It aims to introduce the Physics Education Websites (PEWs) and guide their followers toward the most credibility of them by analyzing their content. The sample consisted of (36) websites which were selected according to specific…

  6. Childhood Abuse and the Content of Delusions

    Science.gov (United States)

    Mason, Oliver J.; Brett, Emma; Collinge, Miriam; Curr, Helen; Rhodes, John

    2009-01-01

    Objectives: We aimed to investigate possible associations between histories of childhood abuse and the content of delusions for individuals with psychotic disorders. Methods: 39 participants with a psychotic disorder including one or more delusional beliefs successfully completed structured interviews about childhood trauma, delusional beliefs and…

  7. Pedagogical Content Knowledge and Industrial Design Education

    Science.gov (United States)

    Phillips, Kenneth R.; De Miranda, Michael A.; Shin, Jinseup

    2009-01-01

    Pedagogical content knowledge (PCK) has been embraced by many of the recent educational reform documents as a way of describing the knowledge possessed by expert teachers. These reform documents have also served as guides for educators to develop models of teacher development. However, in the United States, few if any of the current models…

  8. Micropropagation and Evaluation of Phenolic Content, Antioxidant ...

    African Journals Online (AJOL)

    Vernonia cinerea, belonging to the family Asteraceae, is of wide medicinal application. This study investigated the antimicrobial, antioxidant activities and the total phenolic contents of wild plant of Vernonia cinerea with its respective shoot cultures.Nodal explants of V. cinerea were cultured on Murashige and Skoog (MS) ...

  9. Phytochemical content, antioxidant capacity and physicochemical ...

    African Journals Online (AJOL)

    We investigated the antioxidant and physicochemical properties of pomegranate (Punica granatum cv. Bhagwa) fruit grown in three microclimates in South Africa. The physicochemical properties of fruit peel and arils differed among the growing locations, including weight and redness color of both peel and arils. Contents of ...

  10. Spatial Ability Improvement and Curriculum Content

    Science.gov (United States)

    Connolly, Patrick E.

    2009-01-01

    There has been a significant history of research on spatial ability and visualization improvement and related curriculum content presented by members of the Engineering Design Graphics Division over the past decade. Recently, interest in this topic has again been heightened thanks to the work of several division members on research such as the…

  11. Sodium content on processed foods for snacks.

    Science.gov (United States)

    Kraemer, Mariana Vieira dos Santos; Oliveira, Renata Carvalho de; Gonzalez-Chica, David Alejandro; Proença, Rossana Pacheco da Costa

    2016-04-01

    To assess the Na content reported on the labels of processed foods sold in Brazil that are usually consumed as snacks by children and adolescents. Cross-sectional study that assessed Na content and serving size reporting on processed food labels. A supermarket that is part of a large chain in Brazil. All foods available for sale at the study's location and reported in the literature as snacks present in the diets of Brazilian children and adolescents. Of the 2945 processed foods, 87 % complied with the reference serving sizes, although variability in reporting was observed in most of the food subgroups. In addition, 21 % of the processed foods had high Na levels (>600 mg/100 g) and 35 % had medium Na levels (>120 and ≤600 mg/100 g). The meats, oils, fats and seeds groups as well as the prepared dishes had higher percentages of foods classified as high Na (81 %, 58 % and 53 %, respectively). Most of the processed foods had high or medium Na content. We emphasize the importance of revising Brazilian nutrition labelling legislation to standardize reference serving sizes to avoid variation. Besides, we point out the potential for reducing Na levels in most processed foods, as evidenced by the variability in Na content within subgroups. Finally, we have identified the need to develop a method to classify Na levels in processed foods with specific parameters for children and adolescents.

  12. Content, Process, and Product: Modeling Differentiated Instruction

    Science.gov (United States)

    Taylor, Barbara Kline

    2015-01-01

    Modeling differentiated instruction is one way to demonstrate how educators can incorporate instructional strategies to address students' needs, interests, and learning styles. This article discusses how secondary teacher candidates learn to focus on content--the "what" of instruction; process--the "how" of instruction;…

  13. Crowdsourcing Content Creation in the Classroom

    Science.gov (United States)

    Hills, Thomas T.

    2015-01-01

    The recent growth in crowdsourcing technologies offers a new way of envisioning student involvement in the classroom. This article describes a participatory action research approach to combining crowdsourced content creation with the student as producer model, whereby students' interests are used to drive the identification and creation of…

  14. [Selenium content in human in Sakha Republic].

    Science.gov (United States)

    Golubkina, N A; Senkevich, O A; Kekina, E G

    2009-01-01

    Sakha Republic is considered to be endemic selenium deficient and poorly investigated region. Analysis of selenium in human sera, hair and nails revealed strongly decreased values. Low selenium concentrations were registered also in meat of domestic animals, fresh-water fish, mushrooms weight, agaricus campester. The possibility of the human selenium content improvement is discussed via import of grain with high selenium concentration.

  15. English language teaching textbooks content, consumption, production

    CERN Document Server

    Harwood, N

    2013-01-01

    English language teaching textbooks (or coursebooks) play a central role in the life of a classroom. This edited volume contains research-informed chapters focusing on: analysis of textbook content; how textbooks are used in the classroom; and textbook writers' accounts of the materials writing, design, and publishing process.

  16. Altruistic contents of quantum prisoner's dilemma

    Science.gov (United States)

    Cheon, T.

    2005-01-01

    We examine the classical contents of quantum games. It is shown that a quantum strategy can be interpreted as a classical strategy with effective density-dependent game matrices composed of transposed matrix elements. In particular, successful quantum strategies in dilemma games are interpreted in terms of a symmetrized game matrix that corresponds to an altruistic game plan.

  17. Content-Focused Coaching: Five Key Practices

    Science.gov (United States)

    Gibbons, Lynsey K.; Cobb, Paul

    2016-01-01

    Many districts are using content-focused coaching as a strategy to provide job-embedded support to teachers. However, the current coaching literature provides little guidance on what coaches need to know and be able to do to engage teachers in activities that will support their development of ambitious instructional practices. Furthermore, little…

  18. Teaching Minority Content: A Community Based Model.

    Science.gov (United States)

    Kelly, Kenneth W.

    In an effort to develop a more effective means of teaching minority content, a course focusing on Native American issues was implemented at Northern Michigan University. The students involved in the project had very limited experience with minority group members, and those exposed to Native Americans often had negative stereotyped notions. The…

  19. Fluoride content of tank water in Australia.

    Science.gov (United States)

    Cochrane, N J; Hopcraft, M S; Tong, A C; Thean, H l; Thum, Y S; Tong, D E; Wen, J; Zhao, S C; Stanton, D P; Yuan, Y; Shen, P; Reynolds, E C

    2014-06-01

    The aims of this study were to: (1) analyse the fluoride content of tank water; (2) determine whether the method of water collection or storage influenced fluoride content; and (3) survey participant attitudes towards water fluoridation. Plastic tubes and a questionnaire were distributed through dentists to households with water tanks in Victoria. A midstream tank water sample was collected and fluoride analysed in triplicate using ion chromatography All samples (n = 123) contained negligible amounts of fluoride, with a mean fluoride concentration of fluoride content and variables investigated such as tank material, tank age, roof material and gutter material. Most people did not know whether their tank water contained fluoride and 40.8% preferred to have access to fluoridated water. The majority thought fluoride was safe and more than half of the respondents supported fluoridation. Fluoride content of tank water was well below the optimal levels for caries prevention. People who rely solely on tank water for drinking may require additional exposure to fluoride for optimal caries prevention. © 2014 Australian Dental Association.

  20. Architectures for Secure Portable Executable Content.

    Science.gov (United States)

    Gritzalis, Stefanos; Aggelis, George; Spinellis, Diomidis

    1999-01-01

    Discusses downloadable executable content, or mobile code, on the World Wide Web; evaluates the security features offered by the Java and Safe-Tcl programming languages; and describes the basic mechanisms of each of the proposed security models. Presents current implementations, as well as upcoming extensions, and evaluates their efficiency and…

  1. Photosynthetic performance, epiphyte biomass and nutrient content ...

    African Journals Online (AJOL)

    Heavy nutrient loads in coastal waters often lead to excessive growth of microalgal and macroalgal epiphytes on seagrass leaves, with varying effects on the underlying seagrasses. This study evaluates the photosynthetic performance, epiphytic biomass and tissue nutrient content of two tropical seagrasses, Cymodocea ...

  2. Natural vitamin D content in animal products.

    Science.gov (United States)

    Schmid, Alexandra; Walther, Barbara

    2013-07-01

    Humans derive most vitamin D from the action of sunlight in their skin. However, in view of the current Western lifestyle with most daily activities taking place indoors, sun exposure is often not sufficient for adequate vitamin D production. For this reason, dietary intake is also of great importance. Animal foodstuffs (e.g., fish, meat, offal, egg, dairy) are the main sources for naturally occurring cholecalciferol (vitamin D-3). This paper therefore aims to provide an up-to-date overview of vitamin D-3 content in various animal foods. The focus lies on the natural vitamin D-3 content because there are many countries in which foods are not regularly fortified with vitamin D. The published data show that the highest values of vitamin D are found in fish and especially in fish liver, but offal also provides considerable amounts of vitamin D. The content in muscle meat is generally much lower. Vitamin D concentrations in egg yolks range between the values for meat and offal. If milk and dairy products are not fortified, they are normally low in vitamin D, with the exception of butter because of its high fat content. However, as recommendations for vitamin D intake have recently been increased considerably, it is difficult to cover the requirements solely by foodstuffs.

  3. Ubiquitous picture-rich content representation

    Science.gov (United States)

    Wang, Wiley; Dean, Jennifer; Muzzolini, Russ

    2010-02-01

    The amount of digital images taken by the average consumer is consistently increasing. People enjoy the convenience of storing and sharing their pictures through online (digital) and offline (traditional) media. A set of pictures can be uploaded to: online photo services, web blogs and social network websites. Alternatively, these images can be used to generate: prints, cards, photo books or other photo products. Through uploading and sharing, images are easily transferred from one format to another. And often, a different set of associated content (text, tags) is created across formats. For example, on his web blog, a user may journal his experiences of his recent travel; on his social network website, his friends tag and comment on the pictures; in his online photo album, some pictures are titled and keyword-tagged. When the user wants to tell a complete story, perhaps in a photo book, he must collect, across all formats: the pictures, writings and comments, etc. and organize them in a book format. The user has to arrange the content of his trip in each format. The arrangement, the associations between the images, tags, keywords and text, cannot be shared with other formats. In this paper, we propose a system that allows the content to be easily created and shared across various digital media formats. We define a uniformed data association structure to connect: images, documents, comments, tags, keywords and other data. This content structure allows the user to switch representation formats without reediting. The framework under each format can emphasize (display or hide) content elements based on preference. For example, a slide show view will emphasize the display of pictures with limited text; a blog view will display highlighted images and journal text; and the photo book will try to fit in all images and text content. In this paper, we will discuss the strategy to associate pictures with text content, so that it can naturally tell a story. We will also list

  4. Water Content of Lunar Alkali Fedlspar

    Science.gov (United States)

    Mills, R. D.; Simon, J. I.; Wang, J.; Alexander, C. M. O'D.; Hauri, E. H.

    2016-01-01

    Detection of indigenous hydrogen in a diversity of lunar materials, including volcanic glass, melt inclusions, apatite, and plagioclase suggests water may have played a role in the chemical differentiation of the Moon. Spectroscopic data from the Moon indicate a positive correlation between water and Th. Modeling of lunar magma ocean crystallization predicts a similar chemical differentiation with the highest levels of water in the K- and Th-rich melt residuum of the magma ocean (i.e. urKREEP). Until now, the only sample-based estimates of water content of KREEP-rich magmas come from measurements of OH, F, and Cl in lunar apatites, which suggest a water concentration of water content of the magma ocean would have water contents of 320 ppm for the bulk Moon and 1.4 wt % for urKREEP from plagioclase in ferroan anorthosites. Results and interpretation: NanoSIMS data from granitic clasts from Apollo sample 15405,78 show that alkali feldspar, a common mineral in K-enriched rocks, can have approx. 20 ppm of water, which implies magmatic water contents of approx. 1 wt % in the high-silica magmas. This estimate is 2 to 3 orders of magnitude higher than that estimated from apatite in similar rocks. However, the Cl and F contents of apatite in chemically similar rocks suggest that these melts also had high Cl/F ratios, which leads to spuriously low water estimates from the apatite. We can only estimate the minimum water content of urKREEP (+ bulk Moon) from our alkali feldspar data because of the unknown amount of degassing that led to the formation of the granites. Assuming a reasonable 10 to 100 times enrichment of water from urKREEP into the granites produces an estimate of 100-1000 ppm of water for the urKREEP reservoir. Using the modeling of and the 100-1000 ppm of water in urKREEP suggests a minimum bulk silicate Moon water content between 2 and 20 ppm. However, hydrogen loss was likely very significant in the evolution of the lunar mantle. Conclusions: Lunar granites

  5. As Blood Alcohol Content (BAC) Increases, So Does Impairment

    Science.gov (United States)

    ... As Blood Alcohol Content (BAC) Increases, So Does Impairment Past Issues / Spring 2014 Table of Contents For ... define intoxication and provides a rough measure of impairment. Blood Alcohol Content (BAC) 0.0 - 0.05% ...

  6. Quality Scalability Aware Watermarking for Visual Content.

    Science.gov (United States)

    Bhowmik, Deepayan; Abhayaratne, Charith

    2016-11-01

    Scalable coding-based content adaptation poses serious challenges to traditional watermarking algorithms, which do not consider the scalable coding structure and hence cannot guarantee correct watermark extraction in media consumption chain. In this paper, we propose a novel concept of scalable blind watermarking that ensures more robust watermark extraction at various compression ratios while not effecting the visual quality of host media. The proposed algorithm generates scalable and robust watermarked image code-stream that allows the user to constrain embedding distortion for target content adaptations. The watermarked image code-stream consists of hierarchically nested joint distortion-robustness coding atoms. The code-stream is generated by proposing a new wavelet domain blind watermarking algorithm guided by a quantization based binary tree. The code-stream can be truncated at any distortion-robustness atom to generate the watermarked image with the desired distortion-robustness requirements. A blind extractor is capable of extracting watermark data from the watermarked images. The algorithm is further extended to incorporate a bit-plane discarding-based quantization model used in scalable coding-based content adaptation, e.g., JPEG2000. This improves the robustness against quality scalability of JPEG2000 compression. The simulation results verify the feasibility of the proposed concept, its applications, and its improved robustness against quality scalable content adaptation. Our proposed algorithm also outperforms existing methods showing 35% improvement. In terms of robustness to quality scalable video content adaptation using Motion JPEG2000 and wavelet-based scalable video coding, the proposed method shows major improvement for video watermarking.

  7. Disability-related content in nursing textbooks.

    Science.gov (United States)

    Smeltzer, Suzanne C; Robinson-Smith, Gale; Dolen, Mary Anne; Duffin, Janice M; Al-Maqbali, Majid

    2010-01-01

    Although the American with Disabilities Act in 1990 mandated that people with disabilities (PWDs) have equal access to facilities and services, men and women with disabilities continue to report receiving inadequate health care. The need to address disability in health professions education, including nursing, has been identified by the U.S. Surgeon General, researchers, and the disability community. This study examined how disability issues are integrated in textbooks commonly used in nursing programs and differences in coverage by seven textbook categories (e.g., medical-surgical, pediatrics). A total of 33 textbooks used in undergraduate nursing curricula were systematically reviewed for inclusion of disability content using a review grid developed with the input of PWDs. Two researchers independently reviewed each textbook and at least three members of the team developed consensus ratings for each of 224 content items for each textbook. Sums of consensus ratings were calculated for each topic, each textbook, and all seven categories of textbooks. Ratings of each category of disability-related content were calculated and ranked from highest to lowest. Two investigators reviewed the consensus ratings for each category of book as well as written comments provided during the initial steps of the review. Analysis revealed that disability-related content was largely absent from textbooks and categories of textbooks. Although disabling conditions were discussed, issues related to lifelong or preexisting disability were often not addressed. Abuse, a major issue for PWDs, was barely addressed in detail in any of the textbooks. There were significant differences (p = .005) in inclusion of disability-related content by type of textbook; the highest ranked category was community health. Topics that would be expected in specific categories were often addressed infrequently or not at all. The results of this study suggest the need for faculty members to address disability in

  8. Contents of Stereotypes toward Woman Subgroups: An Investigation in the Framework of Stereotype Content Model

    Directory of Open Access Journals (Sweden)

    Timucin Aktan

    2016-12-01

    Full Text Available The aim of the study was to investigate the stereotype contents toward woman subgroups and relate these contents to social-structural predictors and sexism. In this respect, 119 university students were recruited for the first study and they were asked to rate 10 woman subgroups in terms of their competence and warmth, and their status and competitiveness. Participants' level of sexism was also measured using ambivalent sexism scale. The findings of the first study revealed that competence and warmth were the two fundamental dimensions of the stereotype contents, these stereotypes could be depicted in three clusters, the content of many women stereotypes were mixed, and status was linked to competence and competition was related to lack of warmth. Besides replicating the main hypotheses of stereotype content model, the findings supported its two basic assumptions, i.e. negative stereotypes are not necessary to reveal stereotype clusters and personal stereotypes are more open to motivational concerns. Finally, sexism was related only with competition, but not with stereotype contents. Since, high competent / high warm cluster was not observed in the first study, the number of woman subgroups was increased in the second study. Thus, 86 university students were asked to rate 18 women subgroups on the scales used in the first study. Results replicated the findings of the first study, supporting the main hypothesis of stereotype content model. The findings of the studies were discussed in the light of relevant literature.

  9. Does content knowledge matter for new teachers?

    Science.gov (United States)

    Reeves, Todd D.

    There is considerable evidence that new teachers are ill prepared for classroom practice, including self-reported evidence collected from teachers (e.g., Levine, 2006), and statistical evidence for differences in the achievement of students with new versus more experienced teachers (Rivkin, Hanushek, & Kain, 2005). In light of the challenges encountered by new teachers (e.g., Levine, 2006), this study examined the value of different forms of teacher knowledge for teachers with different levels of experience. In particular, this study investigated the interactive relationship between teaching experience and teacher content knowledge, and student achievement in mathematics and science. In New York City, Boyd et al. (2009) linked practice-focused teacher preparation to student mathematics achievement in the first year of teaching and teacher content preparation to achievement in the second. However, other studies demonstrated interactions between teaching experience and content knowledge with different interpretations (e.g., Kukla-Acevedo, 2009; Monk, 1994). At the same time, this study examined the interactive relationship between teaching experience and teachers' pedagogical content knowledge, and student achievement. Extant models of teacher career development (Huberman, 1989; National Research Council, 2010) and how teacher education affects student achievement (e.g., Desimone, 2009) offered theoretical grounding for the study. With nationally representative samples of fourth and eighth grade U.S. students--participants in the 2011 Trends in International Mathematics and Science Study--this study employed hierarchical linear modeling to address its research questions among an array of student achievement outcomes in the domains of mathematics and science. This study attempted to account for salient student, teacher, and contextual factors, and the probabilities of teachers' receipt of various teacher education "treatments" (i.e., propensity score analysis) to

  10. AN INVESTIGATION OF TEACHERS’ PEDAGOGICAL SKILLS AND CONTENT KNOWLEDGE IN A CONTENT-BASED INSTRUCTION CONTEXT

    Directory of Open Access Journals (Sweden)

    Tengku Nor Rizan Tengku Mohamad Maasum

    2012-01-01

    Full Text Available Abstract: Advocates of the content-based approach believed that a language can be learnt effectively when it is the medium of instruction rather than just a subject.  Integrating English and content as part of instruction has become one of the cornerstones of second language pedagogy. Researchers claimed that there are many benefits of integrating English and content instruction.  Among the benefits are the increase in students’ interest with content themes, meaningful input and understanding. In 2003, the Malaysian Ministry of Education introduced the teaching and learning of science and mathematics in English for Year One, Form One and Lower Six Form in all government public schools. This paper describes the challenges faced by teachers when they are required to teach content subjects such as science and mathematics in English.  The focus of the paper is on the teachers’ pedagogical skills  and content knowldge which comprises subject matter content, pedagogical approach, classroom management, use of resources, assessment, preparation of teaching materials, managing students, teachers’ compensatory communication strategies, use of first language and teachers’ perspectives of teaching content subjects in English. Data were obtained from a self-report questionnaire administered to 495 secondary school teachers in West Malaysia. Results from the study provide implications for school administrators in making decisions in assignment of  capable teachers to teach the various levels of classes. Suggestions for teacher self-development and life-long learning efforts are also provided.   Key words: Content-based instruction, ESL instruction, second language, first language and second language pedagogy

  11. LANGUAGE SYSTEM: INFORMATION, INFORMATIONAL CONTENT, INFORMATION TRANSFERITY

    Directory of Open Access Journals (Sweden)

    Elvira Galievna Zarifullina

    2014-10-01

    Full Text Available The article is devoted to research of language system as information system. To this point of view informational content and information transferity are properties of language as main and the most fail-safe communication instrument in human society.  In whole, informational content and information transferity are aspects of information. In that meaning the language realizes function that associated with database of information system: realization of information in formalized form, accumulation, storage and information transfer.But language itself is not an information. Information is language and speech, created with language. Language should be defined as database, because in human thought language doesn’t present as information, but as the formalized model, the system, which elements are bounded with each other and united by the algorithms. The modern forms of language existence are distributed database with multiple accesses, because language belongs to language native bearers, which use it simultaneously.

  12. Determination of the glycogen content in cyanobacteria

    DEFF Research Database (Denmark)

    Porcellinis, Alice De; Frigaard, Niels-Ulrik; Sakuragi, Yumiko

    2017-01-01

    of non-coding RNA. At the same time, efforts are being made to redirect carbon from glycogen to desirable products in genetically engineered cyanobacteria to enhance product yields. Several methods are used to determine the glycogen contents in cyanobacteria, with variable accuracies and technical...... complexities. Here, we provide a detailed protocol for the reliable determination of the glycogen content in cyanobacteria that can be performed in a standard life science laboratory. The protocol entails the selective precipitation of glycogen from the cell lysate and the enzymatic depolymerization...... of glycogen to generate glucose monomers, which are detected by a glucose oxidase-peroxidase (GOD-POD) enzyme coupled assay. The method has been applied to Synechocystis sp. PCC 6803 and Synechococcus sp. PCC 7002, two model cyanobacterial species that are widely used in metabolic engineering. Moreover...

  13. Mixed raster content segmentation, compression, transmission

    CERN Document Server

    Pavlidis, George

    2017-01-01

    This book presents the main concepts in handling digital images of mixed content, traditionally referenced as mixed raster content (MRC), in two main parts. The first includes introductory chapters covering the scientific and technical background aspects, whereas the second presents a set of research and development approaches to tackle key issues in MRC segmentation, compression and transmission. The book starts with a review of color theory and the mechanism of color vision in humans. In turn, the second chapter reviews data coding and compression methods so as to set the background and demonstrate the complexity involved in dealing with MRC. Chapter three addresses the segmentation of images through an extensive literature review, which highlights the various approaches used to tackle MRC segmentation. The second part of the book focuses on the segmentation of color images for optimized compression, including multi-layered decomposition and representation of MRC and the processes that can be employed to op...

  14. [Estimation of selected bioelements content in vegetables].

    Science.gov (United States)

    Grembecka, Małgorzata; Szefer, Piotr; Dybek, Katarzyna; Gurzyńska, Agnieszka

    2008-01-01

    Concentrations of Ca, P, Fe, Zn and Cu were determined in 30 different kinds of fresh vegetables available in sale. The contents of chemical elements (except phosphorus) were analysed, after dry mineralization, by flame atomic absorption spectrometry--AAS with deuterium background correction. The phosphorus was determined in the form of phosphormolybdate blue by spectrophotometric method. Reliability of the procedure was checked by the analysis of certified reference materials. The average contents (mg/100 g) of minerals in vegetables were as follows: 2.57 - 165 for Ca; 22.1 - 95.4 for P; 0.07 - 0.82 for Zn; 0.01 - 0.16 for Cu and 0.27 - 3.31 for Fe. These measurements allowed to estimate the realisation of the recommended daily intake of bioelements with the analysed vegetables for an adult person.

  15. Video quality assessment for web content mirroring

    Science.gov (United States)

    He, Ye; Fei, Kevin; Fernandez, Gustavo A.; Delp, Edward J.

    2014-03-01

    Due to the increasing user expectation on watching experience, moving web high quality video streaming content from the small screen in mobile devices to the larger TV screen has become popular. It is crucial to develop video quality metrics to measure the quality change for various devices or network conditions. In this paper, we propose an automated scoring system to quantify user satisfaction. We compare the quality of local videos with the videos transmitted to a TV. Four video quality metrics, namely Image Quality, Rendering Quality, Freeze Time Ratio and Rate of Freeze Events are used to measure video quality change during web content mirroring. To measure image quality and rendering quality, we compare the matched frames between the source video and the destination video using barcode tools. Freeze time ratio and rate of freeze events are measured after extracting video timestamps. Several user studies are conducted to evaluate the impact of each objective video quality metric on the subjective user watching experience.

  16. Attentional capture by working memory contents.

    Science.gov (United States)

    Pan, Yi

    2010-06-01

    There has been controversy on whether working memory (WM) contents automatically guide attention. The present study tried to replicate the effect of WM-based attentional capture using an adaption of Downing's (2000) paradigm, in which WM and attentional capture were combined. Subjects were presented with an attention display containing two objects, one of which could be precued by a matching item being held in WM. As measured by a probe discrimination task, the memory-matching object had a privileged status to capture attention regardless of the stimulus onset asynchronies between the memory cue and the attention display, even when there was absolutely no benefit for subjects to bias attention in favour of the memory match. These results suggest that WM contents guide attention in an involuntary manner. The implications of current findings for understanding of WM effects on visual selection are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

  17. Content layer progressive coding of digital maps

    DEFF Research Database (Denmark)

    Forchhammer, Søren; Jensen, Ole Riis

    2000-01-01

    A new lossless context based method is presented for content progressive coding of limited bits/pixel images, such as maps, company logos, etc., common on the WWW. Progressive encoding is achieved by separating the image into content layers based on other predefined information. Information from...... already coded layers are used when coding subsequent layers. This approach is combined with efficient template based context bi-level coding, context collapsing methods for multi-level images and arithmetic coding. Relative pixel patterns are used to collapse contexts. The number of contexts are analyzed....... The new methods outperform existing coding schemes coding digital maps and in addition provide progressive coding. Compared to the state-of-the-art PWC coder, the compressed size is reduced to 60-70% on our layered test images....

  18. Content Layer progressive Coding of Digital Maps

    DEFF Research Database (Denmark)

    Forchhammer, Søren; Jensen, Ole Riis

    2002-01-01

    for calculating the resulting number of contexts are given. The new methods outperform existing schemes coding digital maps and in addition provide progressive coding. Compared to the state-of-the-art PWC coder, the compressed size is reduced to 50-70% on our layered map test images.......A new lossless context based method is presented for content progressive coding of limited bits/pixel images, such as maps, company logos, etc., common on the World Wide Web. Progressive encoding is achieved by encoding the image in content layers based on color level or other predefined...... information. Information from already coded layers are used when coding subsequent layers. This approach is combined with efficient template based context bilevel coding, context collapsing methods for multilevel images and arithmetic coding. Relative pixel patterns are used to collapse contexts. Expressions...

  19. Cultural Archetype Contents for the Traditional Wedding

    Directory of Open Access Journals (Sweden)

    In Hee Ahn

    2012-06-01

    Full Text Available This research aims to perform a contextual study of the wedding customs, wedding procedures, and wedding costumes included in Korean traditional wedding culture, making use of cultural contents which form cultural archetypes. The range of wedding customs studied are set limits from the Joseon dynasty to ancient times, and, for wedding procedures and costumes, to the Chosun dynasty, when a wedding ceremony became the norm. Only wedding ceremonies performed among ordinary classes are included as subjects for this research; wedding ceremonies and costumes for court are excluded. The cultural archetypes developed within these boundaries suggest prior cultural content, developed beforehand. The research methods are focused on document records inquiry and genre paintings during the Joseon era, using museum resources as visual materials. The following is the outcome of this research: Firstly, wedding customs and procedures observed among folk materials are presented in chronological order. Secondly, the brides' and grooms' wedding costumes are also presented chronologically, differentiated by class-characteristics.

  20. Content Recommendation for Viral Social Influence

    DEFF Research Database (Denmark)

    Ivanov, Sergei; Theocharidis, Konstantinos; Terrovitis, Manolis

    2017-01-01

    How do we create content that will become viral in a whole network after we share it with friends or followers? Significant research activity has been dedicated to the problem of strategically selecting a seed set of initial adopters so as to maximize a meme’s spread in a network. This line of work...... assumes that the success of such a campaign depends solely on the choice of a tunable seed set of adopters, while the way users perceive the propagated meme is fixed. Yet, in many real-world settings, the opposite holds: a meme’s propagation depends on users’ perceptions of its tunable characteristics......, while the set of initiators is fixed. In this paper, we address the natural problem that arises in such circumstances: Suggest content, expressed as a limited set of attributes, for a creative promotion campaign that starts out from a given seed set of initiators, so as to maximize its expected spread...

  1. A Content Markup Language for Data Services

    Science.gov (United States)

    Noviello, C.; Acampa, P.; Mango Furnari, M.

    Network content delivery and documents sharing is possible using a variety of technologies, such as distributed databases, service-oriented applications, and so forth. The development of such systems is a complex job, because document life cycle involves a strong cooperation between domain experts and software developers. Furthermore, the emerging software methodologies, such as the service-oriented architecture and knowledge organization (e.g., semantic web) did not really solve the problems faced in a real distributed and cooperating settlement. In this chapter the authors' efforts to design and deploy a distribute and cooperating content management system are described. The main features of the system are a user configurable document type definition and a management middleware layer. It allows CMS developers to orchestrate the composition of specialized software components around the structure of a document. In this chapter are also reported some of the experiences gained on deploying the developed framework in a cultural heritage dissemination settlement.

  2. Cyberspace Content Manager Technician (MOS 255a)

    Science.gov (United States)

    2011-01-01

    Cyberspace content management technician (MOS 255A) By CW5 Todd M. Boudreau To fully grasp the evolution and current role of the Army’s cyberspace...adaptive technical expert, combat leader , trainer, and advisor. Through progressive levels of exper- tise in assignments, training, and education, the WO...administers, manages , maintains, operates, and integrates Army systems [underline added for emphasis] and equipment across the full spectrum of

  3. A Content Specification for Business Process Models

    Directory of Open Access Journals (Sweden)

    Akhilesh Bajaj

    1996-11-01

    Full Text Available Business process modeling is an essential prerequisite to business process reengineering (BPR, and workflow management (WFM. Process models have been traditionally used to model software processes, and many business process models are adaptations of these process models. Using these process models to represent business processes results in two problems. First, since these process models usually represent different perspectives of systems (or in this case, businesses the user needs to integrate multiple existing models to completely represent the business processes. This reduces the ease of use, and leads to a lower acceptance by users. Second, business processes contain concepts not found in software processes (e.g., physical objects, roles, etc.. Traditional process models cannot represent these new concepts, and hence traditional process models model business processes inadequately. These two problems can be easily solved if a comprehensive business process model exists, that models all perspectives of a business process, and that allows representation of these new concepts. As a first step towards this goal, we propose a content specification that would need to be satisfied by such a business process model. The primary contribution of this work is a comprehensive content specification for a business process model that will solve the two problems listed above. This content specification also serves as a framework to analyze process models in detail, and to compare them based on their content (i.e., what concepts they model and the degree to which they model each aspect of a business process (i.e., how much of a business process they model.

  4. AMATOXIN AND PHALLOTOXIN CONTENT OF LEPIOTA CRISTATA

    OpenAIRE

    KAYA, Ertugrul; Akata, Ilgaz; COSKUN, Nuri Cenk

    2017-01-01

    Despite Lepiotacristata has been known as a nontoxic mushroom species, some researchers havereported that this species contains the amatoxins. In this study, the amatoxinand phallotoxin content of the Lepiota cristata growing in Turkey have beenanalysed.The amatoxinsand phallotoxin levels have been measured using the reversed phase high-performanceliquid chromatography system. Toxin analyses were carried out for dried L.cristata, which were collected from the forests Kastamonu region of Turke...

  5. Quantification of Fluorine Content in AFFF Concentrates

    Science.gov (United States)

    2017-09-29

    for MilSpec compliance. Fluorocarbon surfactants are the most active components in these concentrates, and analysis of the fluorine content in the...situation as warming or cooling the sample does not affect the spectrum. The next most affected resonance is the one originating from the -CF2...Mabury, Environ. Chem. 2013, 10, 486-493. 9. T.J. Martin, “Fire-Fighting Foam Technology,” in Foam Engineering : Fundamentals and Applications; P

  6. Fluorine content in epiphtic lichens and mosses

    Energy Technology Data Exchange (ETDEWEB)

    Olech, M.; Kajfosz, J.; Szymczyk, S.; Wodniecki, P.

    1981-01-01

    The fluorine content in epiphytic lichens (Physcia adscendens, Physconia grisea, Parmelia sulcata and Evernia prunastri) and the moss Orthotrichum obtusifolium growing near an aluminum plant is presented. Analyses of lichen samples show the correlation between the distribution of the emitted fluorine and the distance from the source of emission; the most visible effects are in the direction of the prevailing winds. The more resistant lichen species accumulate greater amounts of fluorine than the less resistant ones.

  7. The content and essenceof education kinesiology

    OpenAIRE

    IRKHIN V.N.; IRKHINA I.V.; POLSHHIKOVA O.V.; MARKOV A.V.

    2015-01-01

    This work is devoted to the content and nature of educational kinesiology, its differences from the physical culture, sports kinesiology and applied kinesiology. Ancient thinkers studied the interaction of human movement and its development. In the middle of the 20th century, scientists came to the conclusion that skillful usage of this interdependence promotes the effectiveness of trainings and the development of the whole person. In the 60-s of the 20th century, Gudchard introduced into sci...

  8. Low-Gold-Content Brazing Alloys

    Science.gov (United States)

    Brennan, A.; Mckown, R. D.

    1982-01-01

    Two new alloys for brazing at 1,760 degrees to 1,850 degrees F are stronger and have better gap-filling capability. Alloys have lower gold content than other gold brazes for their temperature range and therefore are far less expensive. They are produced in wire, foil, and powder and are excellent for brazing at temperatures where no suitable alloys existed--especially for step brazing copper.

  9. Contents and assessment of basic tourism resources

    OpenAIRE

    Knezevic, Rade

    2008-01-01

    The article looks at the attractive factors of basic tourism resources and the structure of their attractions. The general term ‘resource’ refers to both natural and anthropogenic resources, while the content of this concept refers to elements used in creating a tourism product. Basic tourism resources are the most important factors of tourism processes, with a vital attribute of direct and indirect tourism resources being their substitutability. Natural (biotropic) resources are consid...

  10. Virentrack: A heuristic for reducing cache contention

    OpenAIRE

    Kumar, Viren

    2009-01-01

    Multicore processors are the dominant paradigm in mainstream computing for the present and foreseeable future. Current operating system schedulers on multicore systems co-schedule applications on cores at random. This often exacerbates issues such as cache contention, leading to a performance decrease. Optimally scheduling applications to take advantage of multicore characteristics remains a difficult and open problem. In this thesis, I advocate a method of optimized scheduling on multicore sys...

  11. Antisocial and Prosocial Effects of Media Content

    OpenAIRE

    Moise-Þiþei Adina; Moise Daniel

    2012-01-01

    More and more people nowadays cannot stand without watching or hearing their TV, internet, newspapers, cell phones, radio, media players and more other devices that are their main important source of information, entertainment and more others. The problem discussed in this article is about the media content and what are its effects upon the stakeholders especially the viewers of this mass media channels, and what is selling best. What should be forbidden out for their interests and the well b...

  12. Analysis of Joint Masonry Moisture Content Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, Kohta [Building Science Corporation, Westford, MA (United States)

    2015-10-01

    Adding insulation to the interior side of walls of masonry buildings in cold (and wet) climates may cause performance and durability problems. Some concerns, such as condensation and freeze-thaw, have known solutions, but wood members embedded in the masonry structure will be colder (and potentially wetter) after an interior insulation retrofit. Moisture content & relative humidity were monitored at joist ends in historic mass brick masonry walls retrofitted with interior insulation in a cold climate (Zone 5A); data were collected from 2012-2015. Eleven joist ends were monitored in all four orientations. One limitation of these results is that the renovation is still ongoing, with limited wintertime construction heating and no permanent occupancy to date. Measurements show that many joists ends remain at high moisture contents, especially at north- and east-facing orientations, with constant 100% RH conditions at the worst cases. These high moisture levels are not conducive for wood durability, but no evidence for actual structural damage has been observed. Insulated versus non-insulated joist pockets do not show large differences. South facing joists have safe (10-15%) moisture contents. Given the uncertainty pointed out by research, definitive guidance on the vulnerability of embedded wood members is difficult to formulate. In high-risk situations, or when a very conservative approach is warranted, the embedded wood member condition can be eliminated entirely, supporting the joist ends outside of the masonry pocket.

  13. Screening Capsicum accessions for capsaicinoids content.

    Science.gov (United States)

    Antonious, George F; Jarret, Robert L

    2006-01-01

    Ninety Capsicum accessions selected from the USDA Capsicum germplasm collection were screened for their capsaicinoids content using gas hromatography with nitrogen phosphorus detection (GC/NPD). Fresh fruits of Capsicum chinense, C. frutescens, C. baccatum, C. annuum, and C. pubescens were extracted with methanol and analyzed for capsaicin, dihydrocapsaicin, and nordihydrocapsaicin. Mass spectrometry of the fruit crude extracts indicated that the molecular ions at m/z 305, 307, and 293, which correspond to capsaicin, dihydrocapsaicin, and nordihydrocapsaicin, respectively, have a common benzyl cation fragment at m/z 137 that can be used for monitoring capsaicinoids in pepper fruit extracts. Capsaicin and dihydrocapsaicin were the dominant capsaicinoids detected. Capsaicin concentrations were typically greater than dihydrocapsaicin. Concentrations of total capsaicinoids varied from not detectable to 11.2 mg fruit(-1). Statistical analysis revealed that accession PI-441624 (C. chinense) had the highest capsaicin content (2.9 mg g(-1) fresh fruit) and accession PI-497984 (C. frutescens) had the highest dihydrocapsaicin content (2.3 mg g(-1) fresh fruit). Genebank accessions PI-439522 (C. frutescens) and PI-497984 contained the highest concentrations of total capsaicinoids.

  14. Tourist maps – definition, types and contents

    Directory of Open Access Journals (Sweden)

    Jancewicz Kacper

    2017-03-01

    Full Text Available Tourist maps are one of the most common groups of cartographic documents. Their variety in terms of content, subject matter and publication titles is a result of growing popularity of diverse forms of tourism activity. The aim of the authors of this article is to demonstrate issues related to tourist maps, including their variety in relation to contemporary forms of tourism. As tourist maps are constantly developing, the authors decided to propose a classification of tourist maps which is adequate from the point of view of the types of maps we currently distinguish. Taking into consideration the aim and type of tourism, the maps were divided into the following sub-groups: maps for sightseeing tourism, qualified tourism, and other tourism, as well as tourist city maps, and maps prepared for promotion and advertising of tourism. The first there categories were further divided into more detailed sub-categories and each of them was described briefly in terms of its content. The classification of maps based on their scales and form of content presentation was also included.

  15. Content of teachers' stereotypes about adolescents

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    Đerić Ivana

    2009-01-01

    Full Text Available Discourse on 'problematic behavior' of the young in adolescence period is often present in lay, media, professional and scientific public. In this research, we performed empirical testing of the psychological concept of 'storm and stress', which is manifested by stereotypes about adolescents as rebels. The goal was to establish whether teachers hold stereotypes about younger adolescents as a social group and what the content of the stereotype is. Research participants were 193 teachers teaching the seventh grade in ten Belgrade primary schools. Factor analysis method established the presence of several factors, which reflect the psychological content and meaning of teachers' stereotypes about younger adolescents. The results of our research point out: (a that stereotypes of teachers about younger adolescents stand in partial correspondence with the content of a widely distributed concept of 'storm and stress'; (b that this concept is mostly loaded with a negative perception of pupils on the part of teachers and (c that teachers less often perceive pupils through the prism of some positive qualities. That is, teachers think that these positive qualities are not 'typical' qualities of adolescents if they are observed as a group. Interviewed teachers hold stereotypes about younger adolescents, but intensity and valence of stereotypes vary depending on the nature of obtained factors.

  16. WAIS Searching of the Current Contents Database

    Science.gov (United States)

    Banholzer, P.; Grabenstein, M. E.

    The Homer E. Newell Memorial Library of NASA's Goddard Space Flight Center is developing capabilities to permit Goddard personnel to access electronic resources of the Library via the Internet. The Library's support services contractor, Maxima Corporation, and their subcontractor, SANAD Support Technologies have recently developed a World Wide Web Home Page (http://www-library.gsfc.nasa.gov) to provide the primary means of access. The first searchable database to be made available through the HomePage to Goddard employees is Current Contents, from the Institute for Scientific Information (ISI). The initial implementation includes coverage of articles from the last few months of 1992 to present. These records are augmented with abstracts and references, and often are more robust than equivalent records in bibliographic databases that currently serve the astronomical community. Maxima/SANAD selected Wais Incorporated's WAIS product with which to build the interface to Current Contents. This system allows access from Macintosh, IBM PC, and Unix hosts, which is an important feature for Goddard's multiplatform environment. The forms interface is structured to allow both fielded (author, article title, journal name, id number, keyword, subject term, and citation) and unfielded WAIS searches. The system allows a user to: Retrieve individual journal article records. Retrieve Table of Contents of specific issues of journals. Connect to articles with similar subject terms or keywords. Connect to other issues of the same journal in the same year. Browse journal issues from an alphabetical list of indexed journal names.

  17. BIOGENIC AMINES CONTENT IN DIFFERENT WINE SAMPLES

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    Attila Kántor

    2015-02-01

    Full Text Available Twenty-five samples of different Slovak wines before and after filtration were analysed in order to determine the content of eight biogenic amines (tryptamine, phenylalanine, putrescine, cadaverine, histamine, tyramine, spermidine and spermine. The method involves extraction of biogenic amines from wine samples with used dansyl chloride. Ultra-high performance liquid chromatography (UHPLC was used for determination of biogenic amines equipped with a Rapid Resolution High Definition (RRHD, DAD detectors and Extend-C18 LC column (50 mm x 3.0 mm ID, 1.8 μm particle size. In this study the highest level of biogenic amine in all wine samples represent tryptamine (TRM with the highest content 170.9±5.3 mg/L in Pinot Blanc wine. Phenylalanine (PHE cadaverine (CAD, histamine (HIS and spermidine (SPD were not detected in all wines; mainly SPD was not detected in 16 wines, HIS not detected in 14 wines, PHE and CAD not detected in 2 wines. Tyramine (TYR, spermine (SPN and putrescine (PUT were detected in all wines, but PUT and SPN in very low concentration. The worst wine samples with high biogenic amine content were Saint Laurent (BF, Pinot Blanc (S and Pinot Noir (AF.

  18. CONTENT MANAGEMENT SYSTEMS (CMS OPEN SOURCE WEBSITES

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    Marinela Lăzărică

    2013-01-01

    Full Text Available Firms need flexible software applications, which may be adaptable to dynamic changes of the modern business environment; they also need more control over their software costs, security and trust in purchased and implemented software. Moreover, they need to be free of individual software vendors and license costs for the software, etc. The solution of this problem consisted in open source applications and open source technology has proven that it can often provide high-quality software being a challenge for old models of software development and maintenance. The first content management system was announced in the late 90s. The offer of such software systems is varied and each of them has its own characteristics. This requires a comparative analysis of viable open-source systems in order to choose the most appropriate imposed goals. In this context, the paper illustrates the use of an open source content management system, like WordPress, to develop a content site in design of websites and analyzeits characteristics.

  19. Anthraquinone Content in Noni (Morinda citrifolia L.

    Directory of Open Access Journals (Sweden)

    Rainer W. Bussmann

    2013-01-01

    Full Text Available Noni has been used in traditional medicine and as food for thousands of years. While the fruits serve as food and internal medicine, leaves were traditionally used only topically. In recent years, concern regarding the possible content of anthraquinones in noni has led to scrutiny by the European Food Safety Authority. Little research existed on the content of anthraquinones in different noni preparations, with no information about the potential effect of harvest and preparation methods. Our research focused on lucidin, alizarin, and rubiadin, the most important anthraquinones from a health perspective. We found that the production process (fermentation/juice production versus drying/lyophilization has no effect on the anthraquinone content. The source product, however, does have implications: noni fruit puree from which seeds had been removed as well as consumer products produced from such puree had no detectable amounts of any anthraquinones. Products that did contain seed or leaf material in all cases did contain partly significant amounts of anthraquinones. To alleviate safety concerns, we suggest that noni products, whether fermented or unfermented juice or powder, should be derived only from fully ripe noni fruits, and that any seed material needs to be removed during the production process.

  20. Perception of content and non-content expert facilitators of PBL according to students' performance levels.

    Science.gov (United States)

    Ismail, Noor Akmal Shareela; Alias, Ekram; Arifin, Khaizurin Tajul; Damanhuri, Mohd Hanafi A; Karim, Norwahidah Abd; Aan, Goon Jo

    2015-01-01

    Problem-based learning (PBL) is a student-centred learning system that involves multidisciplinary fields focused on problem solving. Facilitators of PBL are not necessarily content experts but little is known on how this concept has affected the outcomes of PBL sessions in learning Medical Biochemistry. We aimed to evaluate the impact of having the content expert as a facilitator in conducting PBL. A total of 150 first and second year medical students from the University Kebangsaan Malaysia were interviewed with a validated set of questions to acquire their views on the roles of facilitators in PBL in learning Medical Biochemistry. Their achievement were evaluated through their essay marks derived from various PBL packages. All respondents agreed that PBL sessions associated with Medical Biochemistry are best appreciated when conducted by a content-expert facilitator. Their exam marks reflected well on their perception. PBL sessions related to Medical Biochemistry is best facilitated by Biochemistry lecturers as the content experts.