New Constructions of Zero-Correlation Zone Sequences

In this paper, we propose three classes of systematic approaches for constructing zero correlation zone (ZCZ) sequence families. In most cases, these approaches are capable of generating sequence families that achieve the upper bounds on the family size ($K$) and the ZCZ width ($T$) for a given sequence period ($N$). Our approaches can produce various binary and polyphase ZCZ families with desired parameters $(N,K,T)$ and alphabet size. They also provide additional tradeoffs amongst the above four system parameters and are less constrained by the alphabet size. Furthermore, the constructed families have nested-like property that can be either decomposed or combined to constitute smaller or larger ZCZ sequence sets. We make detailed comparisons with related works and present some extended properties. For each approach, we provide examples to numerically illustrate the proposed construction procedure.Comment: 37 pages, submitted to IEEE Transactions on Information Theor

Romantic involvement and adolescents' academic and psychosocial functioning in Chinese societies

© 2018 This study explores the effects of romantic involvement and dating behaviors on adolescent academic and psychosocial functioning in Chinese societies, where adolescent dating is generally discouraged and believed to generate adverse outcomes. Adolescents (male = 48.6%; MeanAge = 15.20 years) from Taiwan (N = 1081) and mainland China (N = 684) were recruited through stratified sampling to complete self-report surveys on their academic performance, depressive symptoms, self-esteem, relationship status, and gender-role beliefs. Adolescents with current or past dating experiences were also asked about specific dating behaviors, such as the onset of dating, number of relationships, and breakup experiences. Approximately one-third of Chinese adolescents surveyed (34.2%) have past or ongoing dating experience, who showed poorer academic performance compared to never-dated teens. In the full sample, single adolescents with past dating experiences reported greater depressive symptoms than those currently dating or never-dated teens. Boys with past dating experience showed higher self-esteem than their currently dating or never-dated peers, whereas single girls with past dating experience showed lower self-esteem than their currently dating or never-dated counterparts. Among adolescents with dating experience, early dating, over-dating, sexual activities, and breakup experiences can undermine their academic and psychosocial well-being. These findings have significant implications for practice and policy regarding adolescent education and mental health

Relationships between career resilience and career beliefs of employees in Taiwan

The purpose of this study was to explore the relationships between career resilience and career beliefs among employees in Taiwan. This study also examined whether selected demographic variables had effects on career resilience and career beliefs. A pilot study involving 178 participants was conducted in Taiwan to validate the instruments used in the main study. Twenty items were selected for measuring career resilience. These items were taken from London's Career Motivation Inventory (1993b), Noe, R. A., Noe, A. W., and Bachhuber's measures of career motivation (1990), and Michigan's Career Resilience Scale (Bice, 1999, January 24-30). Forty-nine items consisting of 10 subscales in the Career Beliefs Scale were adopted from Yang's Chinese Career Beliefs Inventory-Form B (1996). The study had 578 current employees from diverse work settings in Taiwan. Career resilience scores were negatively correlated with the total career beliefs scores (r = -.22, p less then .01), which indicated that participants who were higher on career resilience tended to possess fewer irrational career beliefs. Career resilience scores were negatively correlated with belief in fate, avoidance of decision making, the belief that some occupations are more prestigious than others, possessing sex role stereotypes, assuming other's help can determine the best choice, and the belief that salary is the primary concern when making career choices. Career resilience scores were positively correlated with the belief that one should find the best-fit career and that work is very important in one's life. However, the magnitudes of coefficients were small (the absolute r values were all less than .40). The results of ANOVA showed that gender, education, type of institution, recent participation in training/educational activities, and supervisory experience yielded statistically significant main effects in career resilience scores. Additionally, there was a significant interaction effect on career resilience for gender by education. MANOVA results showed that gender, age, educational levels, types of institutions, supervisory experience, career change, and recent participation in training activities yielded statistically significant differences among career beliefs. Discriminant analyses were applied to further investigate the differences among the 10 career belief subscales for the significant demographic variables