In three quasi-experimental studies, we investigated the effects of placing a Teachable Agent (TA) from a math game in a digital summative test. We hypothesized that the TA would affect test performance, even without actual “teachability”, by social influence on the test situation. In Study 1 (N=47), students did a pre-test, played the math game for seven weeks, and did a post-test either with ...

Aim: Explain how research can advance the state-of-the-practice in percutaneous coronary intervention (PCI). Methods and results: Identifying the success factors of PCI; identifying decision-making performance (power of judgement) as the factor that could be advanced faster than it is currently the case; explaining why and how such advancement needs a different research approach than those curr...

A simple method is proposed for testing equivalence in a restricted domain of two given term rewriting systems. By using the Church-Rosser property and the teachability of term rewriting systems, the method allows us to prove equivalence of these systems without the explicit use of induction; this proof usually requires some kind of induction. The method proposed is a general extension of induc...

This paper reports a pretest-posttest experimental study of the acquisition of English tones by Mandarin EFL learners in a Chinese university. The target tones are high fall, high rise, fall-rise and complex level tones embedded in non-English words, one/two-syllable English words and short English sentences. The subjects are 31 Mandarin EFL learners majoring in English, who have learnt English...

The reachability of a robot manipulator to a target is defined as its ability to move its joints and links in free space in order for its hand to reach the given target. This paper presents a way of testing the teachability of a robot to given target. The target could be a three dimensional object represented by a cuboid, a line or merely a point. The reachability test problem is transformed in...

Information technologies enhance efficiency oriented organizational networks and enable creation of expertise oriented professional networks. However, whether IT-enabled efficiency and professional networks exist jointly or independently, what their determinants are, and how they interplay remain to be explained. In this study, we seek answers to these questions using case studies of one IT app...

In order to provide technical information needed by the U.S. Nuclear Regulatory Commission to evaluate the adequacy of near-surface disposal of decontamination wastes, Brookhaven National Laboratory has measured the release of organic reagents from solidified simulated decontamination wastes. The waste streams consisted of either mixed-bed ion-exchange resins or anion exchange resins equilibrat...

Knowledge sharing is a difficult task for most organizations, and there are many reasons for this. In this article, we propose that the nature of the knowledge shared and an individual's social network influence employees to find more value in person-to-person knowledge sharing, which could lead them to bypass the codified knowledge provided by a knowledge management system (KMS). We surveyed e...

the necessity of conducting more studies addressing the development of pragmatic profciency and strong pragmatic awareness for english language learners has made the role of instruction and feedback in teaching pragmatic knowledge of utmost importance. the present study evaluates the relative effectiveness of four types of instruction for teaching some pragmatic markers including topic change m...