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Seokho Yoon,Suk Chan Kim,Jun Heo,Iickho Song,Sun Yong Kim IEEE 2009 IEEE Transactions on Vehicular Technology VT Vol.58 No.4
<P>As a novel code-acquisition scheme, the twin-cell detection (TCD) is proposed for the acquisition in time of spread-spectrum codes in the presence of fractional Doppler frequency offset (FDFO). When the FDFO exists, the correlation peak that is used for detection during the acquisition process is split into two neighboring peaks with smaller magnitudes, which results in a considerable degradation in the overall acquisition performance of conventional schemes. In the TCD, the decision variable for detection is formed by combining two consecutive correlator outputs so that the influence of the reduction in the correlation peak due to the FDFO can be alleviated. The numerical results show that the TCD can offer a better mean-time-to-synchronization performance than the conventional scheme based on the cell-by-cell detection.</P>
Lack of Dream-Capital among Korean Youths
Seokho Kim,Hongjung Kim,Sangkyu Lee,Eunji Kim,Ohjae Gowen 서울대학교 사회발전연구소 2018 Journal of Asian Sociology Vol.47 No.3
This paper attempts to provide empirical evidence in understanding the ways that contemporary youth pursue their dreams in Korea. This paper examines the rational aspect of “dreaming” or “non-dreaming” by employing two concepts: dream-capital and penetration. In this paper, dream-capital is conceptualized as a seed that facilitates the accumulation of other capitals. It is the total capacity to dream and is composed of four dimensions: imagination, hope, optimism and resilience. Penetration is defined as the “cognitive judgment about the (un)realizability of dream.” It refers to the discrepancy that exists between judgment about the capacity, condition and qualification required to fulfill one’s dream and judgment about the extent to which one thinks she is equipped with that capacity, condition and qualification. Penetration consists of four factors: individual traits, ascribed status, individual qualifications, and national/social conditions. By analyzing the “Korean Youth Values Survey” data, this paper first examines how the general level of dream-capital is influenced by the total penetration score. And then, it also investigates the effects of four types of penetration on four dimensions of dream-capital. The results confirm that dream-capital is strongly affected by penetration. The ability to penetrate insufficient resources in pursuing dreams leads to lowering of dream-capital. Second, penetration on ascribed status and societal factors are found to be important predictors of dream-capital. These results reveal that for youth, the judgment made on their ascribed status rather than judgements made on individual trait or qualification plays a more important role in promoting dream-capital. The results imply that dreams are pursued and formed in close relation to rational cognitions among Korean youth. Korean youth are more likely to have dreams for long-term future when they believe that those dreams can be realized. Dreams are then rationalized fantasies.
Comparison on predictors of mental health service use among Asian older adults
Seokho Hong 한국사회복지학회 2019 Asian Social Work and Policy Review Vol.13 No.1
Studies have mostly examined mental health service use of older Asian immigrant combining all Asian Americans into one group whereas immigration backgrounds and socioeconomic status of each Asian minority group are different. Therefore, this study aimed to identify predictors of mental health service use within specific ethnic groups among older Asian adults focusing on Chinese, Japanese, Korean, Filipino, and Vietnamese in California. The Behavioral Model for Vulnerable Populations (BMVP) is used to guide the secondary data analysis of a sample of 3,453 older Asian immigrants from the California Health Interview Survey (CHIS). Logistic and linear regression analyses are performed to examine predictors of mental health service use and the frequency of mental health service use, respectively. As results, mental health‐seeking patterns differ by ethnicity within the older Asian immigrant sample, not being married (Korean), higher levels of acculturation (Filipino), lower levels of neighborhood cohesion (Korean and Vietnamese), higher levels of perceived safety (Korean) and lower levels of perceived safety (Vietnamese), higher levels of mental distress (Korean and Filipino), and having perceived need (all) were related to more visits for mental health services. The study findings highlight the necessity of cultural competency services and programs for each Asian ethnicity.
Comfort with discussions about death, religiosity, and attitudes about end‐of‐life care
Seokho Hong,John G. Cagle 한국사회복지학회 2019 Asian Social Work and Policy Review Vol.13 No.2
In end-of-life (EOL) care research, death anxiety and religiosity are often overlooked. Terror management theory (TMT) may provide a useful conceptual model with which to examine how comfort discussing death and religiosity influence attitudes related to EOL care. A telephone-based survey was conducted among community-dwelling adults in the Unites States. Via random sampling, with over-sampling of Hispanics/African Americans, 123 completed survey interviews (response rate = 46%) were ana-lyzed. Respondents were more likely to have better attitudes toward EOL care if they were older or white, religiously active, and comfortable with the subject of death. Religiosity and comfort discussing death were correlated with each other and re-mained significant predictors of attitudes about EOL care even without demographic covariates. Findings suggest that promoting an open dialogue about mortality may improve attitudes about EOL care and utilization of palliative care services. The study also provides evidence about the utility and applicability of TMT for EOL care.