We describe a corpus of speech taking place between 30 Korean mother–child pairs, divided in three groups of Prelexical, Early-Lexical, and Advanced-Lexical. In addition to the child-directed speech, this corpus includes two different formalities of adult-directed speech, i.e., family-directed ADS and experimenter-directed ADS. Our analysis of the MLU in CDS, family-, and experimenter-directed ADS found significant differences between CDS and ADS_Fam, and between ADS_Fam and ADS_Exp, but not between CDS and ADS_Exp. Our finding suggests that researchers should pay more attention (...) to controlling the level of formality in CDS and ADS when comparing the two registers for their speech characteristics. The corpus was transcribed in the CHAT format of the CHILDES system, so users can easily extract data related to verbal behavior in the mother–child interaction using the CLAN program of CHILDES. (shrink)

Chaotic dynamics can be related to analog computation. A possibility of electronically implementing the chaos -driven contracting system in the target article is explored with an analog electronic circuit with inevitable noise from the viewpoint of analog computation with chaotic neurons.

Smartphone app-use patterns will predict professional golfers’ athletic performance, and the use time of serious apps would be associated with improved performance. This longitudinal 4-week observation of 79 professional golfers assessed golf handicaps and smartphone app-use patterns at the start of the Korean professional golf season and 2 and 4 weeks later. We classified use as social networking, entertainment, serious apps, and others. Use time of entertainment apps increased for non-improved golfers but did not change for improved golfers. Use time (...) of serious apps increased for improved golfers and decreased for non-improved ones. Changes in golf handicaps were positively correlated with changes in entertainment app use time and negatively correlated with changes in serious app use time. Professional golfers’ sports performance was not associated with smartphone use time but was with the smartphone app type. The management of smartphone app-use patterns is important for professional golfers’ performance. (shrink)

In the Choui, the way of worldly change is presented with symbols of Yin and Yang, but the actual situations are discussed with the phase of Gue Hyo (卦爻). And, the operation to determine the phase of Gue Hyo is made by the number. So, the phase number of Gue Hyo and the way order always go along. When we call theoperation that reveals the future world with the specific phase of Gue Hyo as the Jeom (Prediction) of Choui, the (...) Jeom is operated with the number. At this time, the operation method of the number is called Seobeop. In this paper, by examining the Seobeop in the book of Hongbeomhwangeuk (洪範皇極) along with that in Choui, the numerological research will be carried out about the coincidence and difference between the Samjaeron (Three element theory) in theCheonbugeong and the Yin-Yang theory of Choui in the Seobeop. (shrink)