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RISS 인기검색어
- 검색키워드
- 저자 : Meixiang Jin (검색결과 4 건)
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Meixiang Jin,정재원 부산대학교 간호과학연구소 2019 글로벌 건강과 간호 Vol.9 No.2
Purpose: To investigate the differences between genders in university students in Yanbian, China, regarding their experiences, knowledge, and attitude toward sex. Methods: This was a cross-sectional structured questionnaire survey using a convenient sampling method. Data was collected using an online survey via mobile -phones or computer devices. Results: There were 287 students who completed the survey, with 64.9% of them female and 35.1% male. Among sexual experiences, the amount of sexual intercourse (x2 =4.70, p=.030), students' feelings after their first sexual intercourse (x2 =10.79, p=.005), and their preferred contraceptive method (x2 =7.67, p=.025) differed by gender. No significant difference between genders was shown regarding the level of knowledge about sex. The average score of correct answers was 53.7%. Male students showed significantly higher scores on attitudes toward sexuality than females (t=8.65, p<.001). Attitudes toward sexuality differed -between the genders in all the demographic characteristics, except for an understanding of sexual education, where female and males alike were lacking. Conclusion: The results show that among university students, both genders show a lack of knowledge about sexuality, and that attitudes toward sex differ according to gender. This has important implications for comprehensive, gender-equal sex education in universities, and should focus especially on artificial abortion and providing accurate contraceptive methods.
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Soft decoding method for systematic raptor codes
Meixiang Zhang,Sooyoung Kim,Jin Yeong Chang,Won-Yong Kim IET 2015 IET COMMUNICATIONS Vol.9 No.16
<P>Raptor codes are a class of rateless codes that were originally designed for binary erasure channels. To enhance their performance, multiple soft iterative loops can be employed in the decoder. In this study, the authors propose a method to construct modified Tanner graphs for systematic raptor codes in order to increase the efficiency of soft decoding. A modified Tanner graph is drawn in terms of bit and check nodes for each component code, instead of encoding and information nodes, as in conventional Tanner graphs, for its component Luby transform codes. This modified Tanner graph enables the use of a more simplified soft iterative decoding algorithm and provides improved decoding performance compared with the conventional method. In addition, they propose an efficient joint iterative soft decoding method with a parallel process to speed up the iterative decoding. The simulation results in this study reveal that the modified Tanner graph works better than the conventional Tanner graph for joint iterative decoding, and that the proposed parallel decoding method can contribute to further enhance the performance as well as the decoding speed by reducing the average number of iterations.</P>
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이정희,Meixiang Jin,손희정,Wenying Cui 질병관리본부 2017 Osong Public Health and Research Persptectives Vol.8 No.4
Objectives: This study aimed at identifying the current nutrition knowledge, body-related perspectives, and weight control behaviors of Korean-Chinese college students. Methods: We conducted a pilot study by employing a healthy weight education program targeting Korean-Chinese nursing school students at the Yanbian University of Science and Technology in Yanbian, China. Results: This pilot study included 40 participants (38 women and 2 men; mean age, 20.5 years). The current weight status of the participants was as follows: 7.9% underweight, 78.9% normal weight, 7.9% overweight, and 5.3% obese. However, nearly two-thirds of the participants were dissatisfied with their current body size (43.6% a little dissatisfied; 20.5% very dissatisfied). Fifty percent of the participants perceived their current body size as being either slightly fat (35.0%) or very fat (15.0%). The following unhealthy weight control methods were commonly used among the 24 participants who practiced weight control: (1) laxatives or diuretics (91.7%), (2) saunas or spas (87.5%), and (3) a one-food diet (79.2%). In addition, the nutrition knowledge of the participants increased by 24 points from 117 points (pretest) to 141 points (posttest) through the healthy weight education program. Conclusion: The findings of this study indicate an urgent need to educate Korean-Chinese college students on healthy weight control methods and body-related perspectives.
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이정희,Wenying Cui,Meixiang Jin 질병관리본부 2017 Osong Public Health and Research Persptectives Vol.8 No.3
Objectives: This research investigated the barriers, attitudes, and dietary behaviors related to sodium reduction among the elderly Korean–Chinese population in Yanbian, China. Methods: We conducted this pilot study using both descriptive research and a focus group interview at the elderly community center in Yanbian. Results: In total, 21 elderly Korean–Chinese (average age, 71 years) were examined. The findings showed that the top three barriers to sodium reduction were 1) the difficulties associated with having meals with others, 2) a preference for liquid based-dishes, and 3) the lack of taste in lowsodium dishes. Although the participants strongly believed that a reduced-sodium diet would improve their health, they were poorly aware of the amount of sodium in various foods and dishes. In particular, the focus group interviews with eight participants (mean age, 67 years) revealed that salt-preserved foods (e.g., Korean pickled cabbage called ‘kimchi’ and soybean paste) were frequently consumed as part of their food culture, and that very salty dishes were served at restaurants, both of which lead to a high sodium intake. Conclusion: This study provides useful preliminary data to help design a nutrition intervention program for sodium reduction that targets the elderly Korean–Chinese population in China.
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