Perfect images of spaces with a δθ-base and weakly θ-refinable spaces

AbstractThe main result shows that the class of spaces with a δθ-base is invariant under perfect mappings. By using related techniques it is also shown that the class of weakly θ-refinable spaces is preserved by perfect images

Managers\u27 Emotional Intelligence and Employee Turnover Rates in Quick Service

Turnover rate is a benchmark economic measure and affects the customer service and profitability of organizations. The purpose of this correlational study was to examine the relationship between general managers\u27 emotional intelligence (EI), operations evaluation scores (OE), and employee turnover rates at Brand X quick service restaurant (QSR) companies using Salovey and Mayer\u27s theoretical framework of EI. Data were collected from a sample of 69 QSR general managers, with at least 6 months of experience, in the Southeastern United States using the EQ-i 2.0 self-assessment instrument. The mean employee turnover rate for the sample (M = 161%), was 157% greater than the 2013 average restaurant and accommodation turnover rate and 281.5% greater than the average overall private sector turnover rate for 2013. None of relationships between the predictor variables and the dependent variable in the multiple regression analysis model were statistically significant, at the p -?¤ .05 level. There was no significant relationship between manager\u27s EI, OE scores and employee turnover rates. As a result, HR managers can redirect resources to finding alternate solutions for improving other components of employees\u27 work environment for the subject population. By identifying QSR as one area of elevated employee turnover rate, the results of the study can serve as the basis for catalyzing research and developing findings for identifying alternate solutions to improve employees\u27 health and reduce QSRs employees\u27 work-related stress

Alien Registration- Burke, Dennis R. (Portland, Cumberland County)

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The Dynamics of Entry and Exit

The relation between profits and the number of firms in a market is one of the essential topics in the field of industrial organization. Usually, the relation is modeled in an error-correction framework where profits and/or the number of firms respond to out-of-equilibrium situations. In an out-of-equilibrium situation one or both of these variables deviate from some long-term sustainable level. These models predict that in situations of equilibrium, the number of firms does not change and hence, entry equals exit. Moreover, in equilibrium entry and exit are expected to be equal to zero. These predictions are at odds with real life observations showing that entry and exit levels are significantly positive in all markets of substantial size and that entry and exit levels often differ drastically. In this paper we develop a new model for the relation between profit levels and the number of firms by specifying not only an equation for the equilibrium level of profits in a market but also equations for the equilibrium levels of entry and exit. In our empirical application we show that our entry and exit equations satisfy the usual errorcorrection conditions. We also find that a one-time positive shock to entry or profits has a small but permanent positive effect on both the number of firms and total industry profits.

Choban operators in generalized ordered spaces

In this paper we investigate generalized ordered (GO) spaces that have a flexible diagonal in the sense of Arhangel\u27skii (2009) [2]. Spaces with a flexible diagonal are generalizations of topological groups and include spaces that are continuously homogeneous, Choban spaces, and rotoid spaces. We prove some paracompactness and metrization theorems for such spaces and construct examples of generalized ordered spaces that clarify how the types of spaces with a flexible diagonal are interrelated. We show, for example, that any GO Choban space is hereditarily paracompact, that any continuously homogeneous, first-countable GO-space is metrizable, that the space of real numbers is the only non-degenerate connected LOTS that is a Chbban space, and that the Sorgenfrey line and the Michael line are Choban spaces. We extend some results of Arhangel\u27skii and pose a family of questions. (C) 2013 Elsevier B.V. All rights reserved

Generalized Gradient Approximation Made Thermal

Using the methodology of conditional-probability density functional theory, and several mild assumptions, we calculate the temperature-dependence of the Perdew-Burke-Ernzerhof (PBE) generalized gradient approximation (GGA). This numerically-defined thermal GGA reduces to the local approximation in the uniform limit and PBE at zero temperature, and can be fit reasonably accurately (within 8%) assuming the temperature-dependent enhancement is independent of the gradient. This locally thermal PBE satisfies both the coordinate-scaled correlation inequality and the concavity condition, which we prove for finite temperatures. The temperature dependence differs markedly from existing thermal GGA's.Comment: 6 pages, 5 figure

The Big Bush machine

In this paper we study an example-machine Bush(S, T) where S and T are disjoint dense subsets of R. We find some topological properties that Bush(S, T) always has, others that it never has, and still others that Bush(S, T) might or might not have, depending upon the choice of the disjoint dense sets S and T. For example, we show that every Bush(S, T) has a point-countable base, is hereditarily paracompact, is a non-Archimedean space, is monotonically ultra-paracompact, is almost base-compact, weakly alpha-favorable and a Baire space, and is an alpha-space in the sense of Hodel. We show that Bush(S, T) never has a sigma-relatively discrete dense subset (and therefore cannot have a dense metrizable subspace), is never Lindelof, and never has a sigma-disjoint base, a sigma-point-finite base, a quasi-development, a G(delta)-diagonal, or a base of countable order. We show that Bush(S, T) cannot be a beta-space in the sense of Hodel and cannot be a p-space in the sense of Arhangelskii or beta-space in the sense of Nagami. We show that Bush(P, Q) is not homeomorphic to Bush(Q, P). Finally, we show that a careful choice of the sets S and T can determine whether the space Bush(S, T) has strong completeness properties such as countable regular co-compactness, countable base compactness, countable subcompactness, and omega-Cech-completeness, and we use those results to find disjoint dense subsets S and T of R, each with cardinality 2(omega), such that Bush(S, T) is not homeomorphic to Bush(T, S). We close with a family of questions for further study. (C) 2012 Elsevier B.V. All rights reserved

Camptothecin Analogs and Methods of Preparation Thereof

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Camptothecin Analogs and Methods of Preparation Thereof

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