the present study was an attempt to investigate the acquisition of negationproperties by persian monolingual and kurdish-persian bilingual learners of englishacross different levels of language proficiency and within a generative framework.generative models are generally concerned with issues such as universal grammar(ug), language transfer, and morphological variability in nonprimary languaged...

We investigate the timing of adoption of product and process innovation by using a differential game in which firms may invest in both activities. We consider horizontal product innovation that reduces product substitutability, and process innovation that reduces marginal cost. First, we demonstrate that the incentive for cost-reducing investment is relatively higher than the incentive to incre...

A fundamental ingredient that controls the kinetics of the two-species annihilation process, A + B → 0, is the rate of reaction in the interfacial region between a domain of A’s and a domain of B’s. A natural way to study this interface is to prepare a system with initially separated components and then monitor the reaction rate as a function of time, as first studied by Gálfi and Rácz [1]. Thi...

2 ABSTRACT The 'initial state' of a child's phonology has been much discussed but rarely empirically investigated within an Optimality Theory framework. The most common assumption has been that, at the onset of word production, all markedness constraints strictly dominate all faithfulness constraints. In this paper, the early phonologies of 20 children, five each learning one of four languages ...

It is possible to define a general initial state for a quantum field by introducing a contribution to the action defined at an initial-time boundary. The propagator for this theory is composed of two parts, one associated with the free propagation of fields and another produced by the operators of this initial action. The derivation of this propagator is shown for the case of a translationally ...