Carbocysteine lysine salt monohydrate (SCMC-Lys) is a well-known mucoactive drug whose therapeutic efficacy is commonly related to the ability of SCMC-Lys to replace fucomucins by sialomucins. The aim of this study was to determine if SCMC-Lys could exert an anti-oxidant action by scavenging reactive oxygen intermediates (ROIs). Our results show that SCMC-Lys proved effective as a selective sca...

this study investigated the effectiveness of explicit pragmatic instruction on the acquisition of requests by college-level english as foreign language (efl) learners in taiwan. the goal was to determine first whether the use of explicit pragmatic instruction had a positive effect on efl learners’ pragmatic competence. second, the relative effectiveness of presenting pragmatics through two deli...

Leukemic blasts from patients with acute nonlymphoid leukemia were examined for the presence of Ig, receptors for IgGFc, and for their capacity to mediate antibody-dependent cellular cytotoxicity (ADCC) against chicken red blood cells (RBC) coated with IgG and spontaneous cell-mediated cytotoxicity (SCMC) against cells of K562 cell line. Leukemic blasts from acute myeloblastic leukemia (AML) pa...

This research used formative evaluation methods to examine a number of synchronous computer-mediated communication (CMC) systems for online learning. CMC systems provide an ideal venue for both knowledge construction and community building. The principles of learner-centeredness, constructivism, and sociocultural theories provided the bases for the design of synchronous activities such as stude...

The use of synchronous computer-mediated communication (SCMC) tools such as audiographic conferencing to provide tutorial support in Open Distance Learning (ODL) settings brings with it changes in roles and relationships between tutors and students which need to be researched to gain an insight into the learning experience of those teaching and being taught through the medium. In this paper we ...

Computer-mediated communication (CMC) has been adopted in most e-learning settings. However, few research studies have considered the effect of different CMC. This study examined how and why synchronous communication affected participation in online discussions. Two online classes that participated in two asynchronous and two synchronous online discussions were examined. Actual and perceived me...

Synchronous communication techniques allow participants to contribute from different locations at the same time. The tools available include chat, desktop videoconferencing (DVC) and GroupWare. Although these online techniques are probably the most similar to face-to-face teaching, it cannot be assumed that traditional teaching skills will necessarily transfer successfully or easily. This paper...