298 research outputs found

    Multicolored Temperley-Lieb lattice models. The ground state

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    Using inversion relation, we calculate the ground state energy for the lattice integrable models, based on a recently obtained baxterization of non trivial multicolored generalization of Temperley-Lieb algebras. The simplest vertex and IRF models are analyzed and found to have a mass gap.Comment: 15 pages 2 figure

    The Impact of the Big Five Personality Traits on the Acceptance of Social Networking Website

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    Social networking websites are a relatively new and wildly popular form of technology. While millions of users have adopted this technology, it is not currently known whether these users have any commonalities or whether these users represent a certain personality type. This study investigates the impact of the Big Five personality variables on the acceptance of social networking technology. Because the Technology Acceptance Model and the Unified Theory of the Acceptance and Use of Technology assume the technology in question is used for productivity gains, a new model framework will be used, specifically created for the acceptance of hedonic information systems

    Emotion Management Ability: Predicting Task Performance, Citizenship, and Deviance

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    This article examines emotion management ability (EMA) as a theoretically relevant predictor of job performance. The authors argue that EMA predicts task performance, organizational citizenship behavior (OCB), and workplace deviance behavior. Moreover, to be practically meaningful, managing emotions should predict these important organizational outcomes after accounting for the effects of general mental ability and the Big Five personality traits. Two studies of job incumbents show that EMA consistently demonstrates incremental validity and is the strongest relative predictor of task performance, individually directed OCB, and individually directed and objectively measured deviance

    Formulations for Sustained-Release of Topical Anesthetics and Methods of Making and Using Same

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    The present invention provides, inter alia, formulations useful to ameliorate symptoms associated with mucosal abrasions, specifically those due to dental orthodontic brackets; oral surgery; periodontal surgery or other procedures. For instance, there is a formulation comprising: 65 to 75% microcrystalline wax; 5 to 15% non-ionic polymer; 15 to 25% topical anesthetic; and 1 to 5% surfactant, wherein the ratio of non-ionic polymer to microcrystalline wax is no greater than 0.2. Preferably, for solid topical anesthetics, the particle size is less than the apertures of a 100-mesh screen. However, the topical anesthetic may also be a liquid. Formulations wherein the mixture is a homogeneous matrix is preferred

    Oklahoma Residents' Perceptions of State Parks

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    The purpose of this study was to assess the needs of the citizens of Oklahoma regarding the Oklahoma State Park system. This assessment was conducted to determine the changes needed to be made by the Oklahoma Tourism and Recreation Department to reflect the wishes of its constituents. The study identifies park use patterns and frequency, perceptions of visitors, and visitor satisfaction regarding the Oklahoma state park system. Consistent with previous research, the findings of this study conclude that Oklahoma state park visitors use specific amenities while visiting parks, visit the parks with a variety of different groups, and have expressed opinions regarding the park management, funding and maintenance and upkeep.School of Teaching and Curriculum Leadershi

    Does Talking the Talk Help Walking the Walk? An Examination of the Effect of Vocal Attractiveness in Leader Effectiveness

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    The authors tested the hypothesis that leaders\u27 vocal attractiveness is positively related to perceptions of leadership effectiveness. In a first study using vocal spectral analysis on a sample of U.S. presidents and Canadian prime ministers, vocal attractiveness accounted for significant variance in historians\u27 perceptions of leadership effectiveness (β = .35, p \u3c .05), explaining an additional 12% of the variance above that explained by personality, motives, and charisma. A second study of 255 subjects distributed into 85 teams in a laboratory setting found similar results for the relationship between vocal attractiveness and perceptions of leadership effectiveness. The second study also supported the hypothesis that personal reactions mediate the relationship between vocal attractiveness and perceptions of leadership effectiveness. In contrast, vocal attractiveness and personal reactions were found to have no significant effects on leadership effectiveness outcomes

    Examination of ability-based emotional intelligence in the structured employment interview

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    Purpose and Method of Study: Research on emotional intelligence (EI) is gaining momentum and becoming one of the most topical areas of organizational research. Of particular interest is the role of EI in the context of employment selection and job performance. Due to the degree of social interaction and emotional influence, the employment interview appears to be an ideal context in which to study the role of EI. The goal of this research is to determine the effect of ability-based EI in the situational interview (SI), the behavioral descriptive interview (BDI), and on the job. More specifically, does EI predict SI ratings, BDI ratings, and job performance after controlling for the established correlates of "g" and the Big-5? Furthermore, the four dimensions of EI are modeled for their prediction of the three dependent variables and to examine gender interactions. In both a pilot study and a field sample, participants were assessed with the MSCEIT, the Wonderlic Personnel Test, the NEO-FFI, and participated in a video recorded job interview. This interview consisted of a situational interview component and a behavioral descriptive interview component. The video recorded interview was later split into separate SI and BDI interview segments and was evaluated by trained raters. Job performance was assessed by the supervisor of the participant. Findings and Conclusions: Results indicate that two EI dimensions, the understanding and managing emotions dimensions, predict situational interview ratings, even after controlling for "g" and the Big-5. Overall EI and the managing emotions dimension of EI significantly predict job performance in both the pilot study and the field sample. After controlling for "g" and the Big-5, the managing emotions dimension of EI predicts 4% of the variance in job performance in both samples. Gender did not interact with EI to the degree expected, though a few gender interactions were found. This study is one of the first to evaluate ability-based emotional intelligence in an actual field setting, one of the first to evaluate ability-based EI in relation to actual job performance, and is the first to evaluate ability-based EI in the structured employment interview

    The Bethe ansatz as a matrix product ansatz

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    The Bethe ansatz in its several formulations is the common tool for the exact solution of one dimensional quantum Hamiltonians. This ansatz asserts that the several eigenfunctions of the Hamiltonians are given in terms of a sum of permutations of plane waves. We present results that induce us to expect that, alternatively, the eigenfunctions of all the exact integrable quantum chains can also be expressed by a matrix product ansatz. In this ansatz the several components of the eigenfunctions are obtained through the algebraic properties of properly defined matrices. This ansatz allows an unified formulation of several exact integrable Hamiltonians. We show how to formulate this ansatz for a huge family of quantum chains like the anisotropic Heisenberg model, Fateev-Zamolodchikov model, Izergin-Korepin model, t−Jt-J model, Hubbard model, etc.Comment: 4 pages and no figure

    Dose-Dependent and Subset-Specific Regulation of Midbrain Dopaminergic Neuron Differentiation by LEF1-Mediated WNT1/b-Catenin Signaling

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    The mesodiencephalic dopaminergic (mdDA) neurons, including the nigrostriatal subset that preferentially degenerates in Parkinson's Disease (PD), strongly depend on an accurately balanced Wingless-type MMTV integration site family member 1 (WNT1)/beta-catenin signaling pathway during their development. Loss of this pathway abolishes the generation of these neurons, whereas excessive WNT1/b-catenin signaling prevents their correct differentiation. The identity of the cells responding to this pathway in the developing mammalian ventral midbrain (VM) as well as the precise progression of WNT/b-catenin action in these cells are still unknown. We show that strong WNT/b-catenin signaling inhibits the differentiation of WNT/b-catenin-responding mdDA progenitors into PITX3(+) and TH+ mdDA neurons by repressing the Pitx3 gene in mice. This effect is mediated by RSPO2, a WNT/b-catenin agonist, and lymphoid enhancer binding factor 1 (LEF1), an essential nuclear effector of the WNT/b-catenin pathway, via conserved LEF1/T-cell factor binding sites in the Pitx3 promoter. LEF1 expression is restricted to a caudolateral mdDA progenitor subset that preferentially responds to WNT/b-catenin signaling and gives rise to a fraction of all mdDA neurons. Our data indicate that an attenuation of WNT/b-catenin signaling in mdDA progenitors is essential for their correct differentiation into specific mdDA neuron subsets. This is an important consideration for stem cell-based regenerative therapies and in vitro models of neuropsychiatric diseases
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