one of the high citation researches surrounding model of transformational leadership's impact on organizational citizenship behavior has been conducted by podsakoff, mackenzie, moorman and fetter (1990). using structural equation modeling, current study aims at testing this model and also 4 other models in schools on a sample including 652 teachers and 131 principals. results showed that p...

We mathematically study the infrared catastrophe for the Hamiltonian of Nelson’s model when it has the external potential in a general class. For the model, we prove the pull-through formula on ground states in operator theory first. Based on this formula, we show both non-existence of any ground state and divergence of the total number of soft bosons.

Currently, standardized distributed simulation systems are likely to follow the High Level Architecture (HLA) standard, not only because it is widely adopted in the United States for DoD applications, but also because it can be seen as the most matured M&S standard in this domain. However, the HLA focuses on the implementation level; thus it cannot solve problems on the conceptual level, such a...

As people change from face-to-face communication to mediated communication the form of representation changes. Distortion of the message in face-to-face communication is something we have learned to live with and control to some extent by the way we represent ourselves, and our message, to the outside world. When the message is being mediated and represented to the recipient by a communications...

Abstract We develop a probabilistic model of S(emantic)-selection that encodes both the notion of systematic mappings from semantic type signature to syntactic distribution—i.e., projection rules—and the notion of selectional noise—e.g., C(ategory)-selection, L(exical)-selection, and/or other independent syntactic processes. We train this model on data from a large-scale judgment study assessin...

We investigate a mixed duopoly market where a welfare−maximizing public firm competes against a profit−maximizing private firm, using a linear−city location−then−price model with linear transportation costs. We find that, compared with the results in the purely private duopoly case discussed by Hotelling (1929) and d' Aspremont, Gabszewicz, and Thisse (1979), the condition under which price equ...

The first objective of this paper is to present and discuss various types of models of program understanding. They are discussed in relation to models of text understanding. The second objective of this paper is to assess the effect of purpose for reading, or more specifically programming task, on the cognitive processes involved and representations constructed in program understanding. This is...

This paper aims to identify the key characteristics of model organisms that make them a specific type of model within the contemporary life sciences: in particular, we argue that the term “model organism” does not apply to all organisms used for the purposes of experimental research. We explore the differences between experimental and model organisms in terms of their material and epistemic fea...

Text S1: Detailed model description Daniel J. van der Post1,2,3,∗, Rineke Verbrugge, Charlotte K. Hemelrijk 1 Institute of Artificial Intelligence, University of Groningen, P. O. Box 407, 9700 AK, Groningen, The Netherlands 2 Behavioural Ecology and Self-Organization, University of Groningen, P. O. Box 11103, 9700 CC Groningen, The Netherlands 3 Centre for Social Learning and Cognitive Evolutio...

Abstract. We construct a discrete model of the homotopy theory of S-spaces. We define a category P with objects composed of a simplicial set and a cyclic set along with suitable compatibility data. P inherits a model structure from the model structures on the categories of simplicial sets and cyclic sets. We then show that there is a Quillen equivalence between P and the model category of S-spa...