the purpose of this study was to evaluate an extension agent's perception with respect to effectiveness of mass teaching methods employed in educational activities of irrigated wheat growing farmers in golestan province. survey and correlational methods were employed in the study. questionnaire was used as means to collect data. the study population consisted of the whole extension workers...

Three experiments investigated the role of oppositional predicate dimensionality in four- and five-year-old children's processing of negation. In Experiment 1 children (37 four-year-olds, mean age 4;8, and 20 five-year-olds, mean age 5;9) were asked to produce opposites for common terms (e.g. 'big'). In Experiment 2 children (27 four-year-olds, mean age 4;8; 23 five-year-olds, mean age 5;9) wer...

Blackboard systems are not new technology. The first blackboard system, the Hearsay-II speech understanding system [1], was developed nearly twenty years ago. While the basic features of Hearsay-II remain in today’s blackboard systems, numerous advances and enhancements have been made as a result of experience gained in using blackboard systems in widely varying application areas. Unlike most A...

Intelligent MultiMedia (IntelliMedia) focusses on the computer processing and understanding of input from at least speech, text and visual images in terms of semantic representations. We have developed a general suite of tools in the form of a software and hardware platform called CHAMELEON that can be tailored to conducting IntelliMe-dia in various application domains. CHAMELEON has an open di...

Intelligent MultiMedia (IntelliMedia) focusses on the computer processing and understanding of signal and symbol input from at least speech, text and visual images in terms of semantic representations. We have developed a general suite of tools in the form of a software and hardware platform called CHAMELEON that can be tailored to conducting IntelliMedia in various application domains. CHAMELE...

In the agent blackboard communication architecture, agents do not interact with each other directly but through blackboard. The blackboard architecture includes central blackboard architecture and distributed one. In blackboard communication architecture, the location of central blackboard (or distributed sub-blackboards) and communication topology among subblackboards are two important issues ...

The researchers examined responses from 862 faculty members at 38 institutions nationwide using the blackboard Learning Management System (LMS) to supplement their face-to-face instruction. The four research questions addressed the primary uses that faculty make of blackboard, perceptions that faculty have of how certain blackboard features enhance or elevate (or might enhance or elevate) their...

We have developed a remote blackboard presenter system. The system works with the DVTS. We have developed a remote blackboard presenter system. The system works with the DVTS. The system enables capturing, automatic transmitting and automatic presentation of high-quality images of a blackboard for the blackboard based lessons. In this paper, we described details of the system.