We present a system designed as an electronic corpus-based exercise book of Czech morphology and syntax with the exercises directly selected from the Prague Dependency Treebank. In this way we want to make schoolchildren familiar with such an important academic product. Obviously, we do not expect that the schoolchildren (will) do grammar practicing so enthusiastically as they surf the web, cha...

Agency is potentially an important concept for CSCL as researchers think about the effectiveness of online learning environments and the ways they encourage groups to take active control of their learning activities. This paper reports on several sessions of mathematics problem solving in the VMT Chat environment. The VMT Chat is a synchronous chat and whiteboard space for students to collabora...

The nonneural cholinergic system of immune cells is pivotal for the maintenance of immunological homeostasis. Here we demonstrate the expression of choline acetyltransferase (ChAT) and cholinergic enzymes in murine natural killer (NK) cells. The capacity for acetylcholine synthesis by NK cells increased markedly under inflammatory conditions such as experimental autoimmune encephalomyelitis (EA...

GOALS AND PREMISES Chat as a communication medium has its own characteristics that need to be considered, especially regarding turn taking and interactional coherence. Following suggestions by Suthers et al. [8; 9], operational rules are used as a basis to detect general dependencies or “contingencies”. Indicators may use lexicalsemantic features but also time lapses between contributions play ...

The paper outlines the design and implementation of end-user applications for interaction, networking and community building in a shared collaboration environment. It covers features, data model, architecture and graphic user interface of the Chat tools, dedicated for synchronous communications in shared space. Two types of chat tools, which aim to support working with the common objects across...

Dialog systems are generally categorized into two types: task oriented and non task oriented systems. Recently, the study of non task oriented dialog systems or chat systems becomes more important since robotic pets or nursing care robots are paid much attention in our daily life. In this paper, as a fundamental technique in a chat system, we propose a method to identify if a speaker displays s...

Over the last five to seven years the use of chat in military contexts has expanded quite significantly, in some cases becoming a primary means of communicating time-sensitive data to decision makers and operators. For example, during humanitarian operations with Joint Task Force-Katrina, chat was used extensively to plan, task, and coordinate predeployment and ongoing operations. The informal ...

1 Abstract The growth of world wide web has dramatically changed our lives. Diierent tools and new techniques based on the world wide web make it possible to perform various collaborative processes and businesses: internet chatrooms, internet phones, video conferences, internet classrooms, and now electronic commerces, etc. Various research and projects have been done regarding how to surf the ...