154,136 research outputs found

    On-Net/Off-Net Price Discrimination and 'Bill-and-Keep' vs. 'Cost-Based' Regulation of Mobile Termination Rates

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    This paper surveys the recent literature on competition between mobile network operators in the presence of call externalities and network effects. It shows that the regulation of mobile termination rates based on “long-run incremental costs” increases networks’ strategic incentives to inefficiently set high on-net/off-net price differentials, thus harming smaller networks and new entrants. The paper argues in favor of a “bill-and-keep” system for mobile-to-mobile termination, and presents international evidence in support of this conclusion.mobile termination, network effects, call externalities, bill-and-keep

    Factors affecting commitment to a plan of physical activity among low-income Hispanic mothers and their daughters

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    The purpose of this research was to examine the relationships among societal norms, exercise self-efficacy and activity related affect on commitment to a plan of physical activity in a sample of low-income Hispanic women and their daughters. Theoretical propositions derived from the Health Promotion Model (Pender, 2011) were tested. The first hypothesis, which stated there would be a significant relationship between societal norms and commitment, was partially supported. The second hypothesis, which stated there would be a significant relationship between exercise self-efficacy and commitment, was partially supported. The third hypothesis, which stated there would be a significant relationship between related affect and commitment to a plan of physical activity, was partially supported. The fourth hypothesis, which stated there would be significant relationship between commitment to a plan of physical activity and participation in physical activity, was partially supported. The fifth hypothesis, which stated there would be a significant relationship between societal norms, self-efficacy, activity related affect and commitment to a plan of physical activity of mothers will be significant predictors of physical activity levels of the daughters, was partially supported. The sixth hypothesis, which stated there would be a significant differences in societal norms, exercise self-efficacy, activity related affect and commitment to exercise between Hispanic women and their daughters was partially supported. Evidence in support of these hypotheses was found among daughters, in relation societal norms and exercise self efficacy, but not mothers. Data was collected at area Hispanic churches. (N= 79) Hispanic mothers and (N= 79) Hispanic daughters. A correlational designed was used. Kendall’s tau_b was used to assess differences between means of mothers and daughters. Actigraph were used in this study for quantitative measurements, which demonstrated low levels of physical activities among mothers and daughters, with both mothers and daughters being in sedentary activity (71%) while they wore the actigraph. Multiple regression did not reveal significant relationships between societal norms, exercise self-efficacy and physical activity enjoyment on a commitment to physical activity with the mothers, and the R2 = .04 which explains only 4% of the variance for mothers’ commitment for physical activity. Multiple regression did however real a relationship between the daughters’ independent variables, societal norms, β = .28, p = .01; and exercise self-efficacy, β = .25, p = .02. The total R2 = .213 which explains 21% of the variance for the daughters’ commitment for PA, which is not a strong predictor for commitment of physical activity. Limitations of this study was the language barrier, limited access to Actigraphs,® and seasonal winter months may have reduced physical activity. Further research is needed with the Hispanic population especially with the key predictor variable of being physically active, exercise self-efficacy. Implication for nurses include education for why and how to be physically active, and to provide physically activity programs that are culturally specific for this population that would provide enjoyment and therefore a commitment to physical activity.Ph. D.Includes bibliographical referencesIncludes vitaby Suzanne M. Kee

    A Multi-Language Comparison of Influences on Author Verification using Character N-Grams

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    We create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc

    Vladimir N. Brovkin, Behind the Front Lines of the Civil War : Political Parties and Social Movements in Russia, 19 I8-1922

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    Keep John. Vladimir N. Brovkin, Behind the Front Lines of the Civil War : Political Parties and Social Movements in Russia, 19 I8-1922. In: Annales. Histoire, Sciences Sociales. 52ᵉ année, N. 3, 1997. pp. 647-649

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    (Acetonitrile-κN){2-[bis­(2-pyridylethyl)­amino]ethanol-κ4N,N′,N′′,O}zinc(II) bis­(perchlorate) monohydrate

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    In the title compound, [Zn(C2H3N)(C16H21N3O)](ClO4)2·H2O, the ZnII ion is coordinated by two pyridyl N atoms, one amine N atom, and an ethanol O atom from the N,N′,N′′,O-tetra­dentate 2-[bis­(2-pyridylethyl)amino]­ethanol donor ligand. The fifth coordination site is filled by an acetonitrile N atom, and there is one solvent water mol­ecule in the asymmetric unit. The 2+ charge of the cationic portion of the complex is balanced by two perchlorate counter-anions

    The vanishing author in computer-generated works: a critical analysis of recent Australian case law

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    Abstract The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals

    N-(2-Aminobenzyl)-N,N-bis(quinolin- 2-ylmethyl)amine

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    The title new diquinaldine derivative, C27H24N4, forms mol­ecular assemblies organized by inter­molecular quinoline π–π stacking [3.356 (3) and 3.440 (3) Å] and both inter- and intra­molecular N—H⋯N hydrogen bonds [3.039 (3)–3.104 (3) Å and 129 (2)–172 (2)°]. The combination of such inter­actions provides readily definable contacts that propagate along each crystallographic axis

    Diffusive author(s), cohesive author: Analysis of S/N (1994)

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    This study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)

    Two-loop coupling constant renormalization in lattice SU(N)×SU(N) 2 D chiral models

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    For the most general link action of lattice SU(N)×SU(N) two dimensional chiral models, the two loop coupling constant renormalization is discussed in the context of the background field method. A non-linear reparametrization of the fields, necessary to keep the invariance of the theory, introduces unpleasant extra-terms. However some of the non-universal contributions are unaffected by these extra-terms and can be easily calculated. This allows to compute the difference between the first non-universal coefficients of the Callan-Symanzik beta function for two actions having the same scale Λ. © 1986 Springer-Verlag
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