The paper presents a theoretical framework addressing three aspects of embodied pedagogical agents: visual static appearance, pedagogical role, and communicative style. The framework is then applied to a user study where 90 school children (aged 12-15) in a dummy multimedia program were presented with either an instructor or a learning companion condition. They were then to choose between eight...

The model: The global responses of a network node i (to perturbations which do not directly affect node i) have a linear relationship with the global responses of its potential regulators. This relationship was previously derived in [3] and the resulting formulation is known as Modular Response Analsys or MRA. We proposed a modified version of MRA by introducing a binary indicator variable Aij ...

Korean has two syntactic constructions expressing negation. Examples of the two types of negation, which I will refer to as “Short Form” and “Long Form,” are given in (2) and (3). Short Form negation involves adding a negative prefix anto the verbal complex. The Short Form negated sentence in (2) differs from the affirmative sentence in (1) only in the underlined morpheme. Long Form negation, s...

We show that for certain class of unconditionally secure protocols and target functionalities, static security implies adaptive security in the UC model. Similar results were previously only known for models with weaker security and/or composition guarantees. The result is, for instance, applicable to a wide range of protocols based on secret sharing. It “explains” why an often used proof techn...

We use two methodologies, the least square dummy variables approach and the dynamic factor models, to decompose the labor productivity growth rate for a large sample of countries into common, i.e. global, and idiosyncratic, i.e. country, components. We find that country specific effects are much more important than common effects in explaining labor productivity. The interesting result is that,...

This study attempts to ascertain whether particular structural arrangements and demographic features of a community were responsible for especially severe disturbances during the 1960s. Preliminary to addressing this question, consideration is given to the manner of measuring severity and to the volatile components of this phenomenon. With respect to the latter, it is found that (1) disorder se...

This paper presents an econometric analysis of the characteristics of firm’s cooperating with universities using Community Innovation Survey (CIS) data for 14 European countries. Our model incorporates three groups of variables which could be related to the probability to cooperate with universities. The first group of variables is related to the size of a firm, the second group measures differ...

This study examines the effects of trade liberalization on the extensive and intensive margins of import and export in developing countries. The study use the duties and the trade liberalization dummy variable (the year which countries have significant reforms in trade policies) to represent trade liberalization. As a result, the study found that the trade liberalization has a significant impac...

We revisit the problem of anonymous communication, in which users wish to send messages to each other without revealing their identities. We propose a novel framework to organize and compare anonymity definitions. In this framework, we present simple and practical definitions for anonymous channels in the context of computational indistinguishability. The notions seem to capture the intuitive p...

The aim of nursing education is to foster in students the competence of applying integrated knowledge with clinical skills to the application domains. In the traditional approach, in-class knowledge learning and clinical skills training are usually conducted separately, such that the students might not be able to integrate the knowledge and the skills in performing standard nursing procedures. ...