We describe some common problems experienced by users of computer-based text chat, and show how many of these problems relate to the loss of timing-specific information. We suggest that thinking of chat as a streaming media data type might solve some of these problems. We then present a number of alternative chat interfaces along with results from user studies comparing and contrasting them bot...

We report a major revision of the CHecklist for Autism in Toddlers (CHAT). This quantitative CHAT (Q-CHAT) contains 25 items, scored on a 5 point scale (0-4). The Q-CHAT was completed by parents of n = 779 unselected toddlers (mean age 21 months) and n = 160 toddlers and preschoolers (mean age 44 months) with an Autism Spectrum Condition (ASC). The ASC group (mean (SD) = 51.8 (14.3)) scored hig...

We present a conversation analysis of openings sequences of online text-based chat counseling. Particular about this chat counseling is that the clients made available their help question through pre-screening. The data consisted of 40 chat sessions with pre-screening and 34 sessions without pre-screening from the Dutch alcohol and drugs chat service. In the chat sessions with pre-screening, th...

The perinuclear zone (PNZ) of the supraoptic nucleus (SON) contains some GABAergic and cholinergic neurons thought to innervate the SON proper. In mice expressing enhanced green fluorescent protein (eGFP) in association with glutamate decarboxylase (GAD)65 we found an abundance of GAD65-eGFP neurons in the PNZ, whereas in mice expressing GAD67-eGFP, there were few labeled PNZ neurons. In mice e...

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...

Chat tools are nowadays an integral part of many collaborative e-learning environments. However, standard chat tools suffer from important coordination and coherence deficiencies. In this paper we propose an open source generic framework for building malleable structured chat applications. Users can strengthen or relax constraints when they want during a chat session. The paper shows some demon...

Helping behavior is a significant part of social learning process in online games. One type of such a behavior is answering questions in a chat. We provide a method to detect if the question asked in a chat was answered and by whom. Proposed method is based on topic modeling for chat messages and comparison of a detected topic of question with a topic of possible reply. We show its efficiency o...

We present the Ubuntu Chat Corpus as a data source for multiparticipant chat analysis. This addresses the problem of the lack of a large, publicly suitable corpora for research in this medium. The advantages of using this corpus for research is its large number of chat messages, its multiple languages, its technical nature, and all of the original chat messages are in the public domain.

Scholars have argued that the Internet could bring about the realization of an electronic global village, with no race, gender, infirmities, or the social problems that often accompany these physical indicators of difference. In this study, we explored this issue by conducting content and discourse analyses of online conversations about race and ethnicity in teen chat rooms. A key focus of our ...

In this article, we address the problem of confusion and co-text-loss in chat communication, identify requirements for a solution, discuss related work and present a new approach for addressing co-text loss in text-based chats. We report about first experiences with our solution and give an outlook on future work directions. The core idea of our solution MuViChat (multiple-visualization chat) i...