Although instant messaging is a very popular tool for collaboration and it has been used for a wide variety of CSCL tasks, there are only a few applications for assisting the tutors in evaluating the conversations of the students. Due to the difficulty of this task, chat is seldom used in a formal education context. In order to tackle this problem, several applications were developed which assi...

There is increasing interest in localizing nerves in the intestine, especially specific populations of nerves. At present, the usual histochemical marker for cholinergic nerves in tissue sections is acetylcholinesterase activity. However, such techniques are applicable only to frozen sections and have uncertain specificity. Choline acetyltransferase (ChAT) is also present in cholinergic nerves,...

On-line chat is becoming more popular for both work and leisure. Unfortunately, the chat format is quite constrained in its ability to convey many important pieces of non-verbal information. We present a new system that uses dynamic text with numerous interactive techniques to effectively communicate nonverbal information. We created a number of easily recognizable animation types to show emoti...

Abstract Across online support communities, community cohesion varies by platform and can impact the self-disclosure of members their exchanges social support. Through a comparative study forum chat-based mental health this research examines how technical features both platforms influence affecting communication patterns among members, including evenness communication, speed number participants...

An ethanolic extract of Allium tuberosum Rottl. demonstrated potent choline acetytrasferase (ChAT) activating activity (45%) among 30 screened Korean edible plants. The ChAT activator of A. tuberoum Rottl. was purified and identified as ferulic acid [4-hydroxy-3-methoxycinnamic acid] via silica-gel open-column chromatography, HPLC, EI-MS, and 1H/13C-NMR. The ferulic acid from A. tuberoum Rottl....

When trying to identify the author of a book, a paper, or a letter, the object is to detect a style that distinguishes one author from another. With recent developments in artificial intelligence, chat bots sometimes play the role of the text authors. The focus of this study is to investigate the change in chat bot linguistic style over time and its effect on authorship attribution. The study s...

We describe the beginning stages of our work on summarizing chat, which is motivated by our observations concerning the information overload of US Navy watchstanders. We describe the challenges of summarizing chat and focus on two chat-specific types of summarizations we are interested in: thread summaries and temporal summaries. We then discuss our plans for addressing these challenges and eva...

This study investigated the impact of synchronous computer-mediated communication (SCMC) mode and familiarity with partners on learner engagement in second-language task-based interaction, whether is linked to subsequent joint-written-text quality. Ninety-eight Vietnamese learners English were assigned into (±) familiar groups performed a picture-sequencing tasks 2 SCMC modes (i.e., video text ...

Abstract The neurotransmitter Acetylcholine (ACh) is produced by the enzyme choline acetyltransferase (ChAT). Recently, ChAT expression was found in leukocytes, however, function of leukocyte-derived ACh incompletely understood. Flow cytometry showed that most ChAT-expressing cells spleen, lymph nodes, lung, and pleural cavity ChAT-GFP reporter mice are B cells. B-1 contain highest frequencies ...

The cholinergic structures in the forebrain of the rat were studied immunohistochemically with a monoclonal antibody to choline acetyltransferase (ChAT) which has proven to be particularly suited to reveal the trajectory of ChAT-positive fibers and their terminations. The habenulo-interpeduncular tract contained the most distinctly ChAT-positive fibers. Here, ChAT-positivity was demonstrated in...