• The Journal of Korean Society for School & Community Health Education
• /
• v.23 no.4
• /
• pp.41-48
• /
• 2022

Objectives: This study aims to investigate the mediating effect of social support on the relationship between the viewing of sensational videos of idol stars through the mass media and the sexual openness of adolescents. Methods: This study used the 'Study on countermeasures against sexual commodification of adolescents through mass media in the smart era' conducted by the 'Korea Youth Policy Institute' in 2014 for the entire country as the main data. Variables consisted of socio-demographic characteristics of study subjects, video viewing, social support, and sexual openness. For data analysis, SPSS ver 23.0 program was used. Results: As a result of comparing the averages, male students (20.40) had higher sexual openness than female students (18.67), and high school students (20.27) had higher sexual openness than middle school students (18.05) at school level. By grade level, sexual openness increased from the first year of middle school (17.47) to the third year of high school (20.82) (p<0.001). In order to verify the mediating effect of video viewing on the effect of adolescent social support on sexual openness, 3-step mediated regression analysis and Sobel test were conducted. As a result, video viewing had a significant effect on sexual openness through social support (p<0.001). Conclusion: Rather than obscuring the environment of mass media unconditionally, creating an atmosphere according to the tendency of realistic social support and reinforcing emotional education will help prevent the adverse effects of reckless sexualization of adolescents.

• Journal of Plant Biotechnology
• /
• v.1 no.1
• /
• pp.56-60
• /
• 1999

Sexual reproduction is an essential process in the propagation of flowering plants. Recent advances in plant cell biology and biotechnology have brought new and powerful methodologies to investigate and manipulate the reproductive processes of angiosperms including agronomically important crop plants. Successful cryopreservation of maize, rye and triticale pollen and young embryos of microspore-and zygote-origine contributes to long term preservation of important plant germ-lines in gene banks. Discovering morphogenetic characteristics of the different developmental pathways taking place in wheat and maize androgenesis in vitro helps to influence the procedure to produce genetically and phenotipically stable homozygous doubled haploid plants for breeding purposes. Detailed ultrastructural and cell-biological studies on the developmental sequences of male and female gametophyte development in wheat, experimental protocols developed to isolate and micromanipulate egg cell protoplasts, make it possible to use plant gametes and the sexual route itself to produce genetically improved organisms. Plant gametes can become useful tools for crop improvement in the near future. Recent achievements by our laboratory in this field are reviewed in the present paper

• YAKHAK HOEJI
• /
• v.38 no.2
• /
• pp.166-173
• /
• 1994

Sex hormones not only regulate external sexual characteristics but several internal biochemical processes. It is well accepted that life-span of female is longer than that of male. Life-span is closely related with aging process in which free radicals are known to be involved. We investigated the effect of testosterone on free radical generating systems and lipid peroxidation based on the sexual difference. Lipid peroxide levels of male and female mouse were increased proportionately with age, especially in male mouse. Increase in enzyme activity of aldehyde oxidase with age was observed in male mouse, while no siginificant change in enzyme activity was found in female mouse. Enzyme activity of xanthine oxidase also showed similar results. It, however, was not significant statistically. Lipid peroxide level and xanthine oxidase type conversion ratio of male and female mouse liver homogenate incubated at $37^{\circ}C$, increased remarkably in proportion to incubation time, especially in male mouse. Lipid peroxide level and aldehyde oxidase activity were measured in normal male mouse, castrated mouse and testosterone treated-castrated mouse. Castrated mouse group showed decrease in lipid peroxide level and aldehyde oxidase activity compared with normal group. Treatment of castrated mouse with testosterone, however turned the level of lipid peroxide and aldehyde oxidase activity back to normal. From the above results, it might be concluded that testosteron could increase the activities of free radical generating enzymes which would result in the formation of lipid peroxide, consequently leading to aging.

• Asian-Australasian Journal of Animal Sciences
• /
• v.20 no.11
• /
• pp.1684-1688
• /
• 2007

This study examined the caponization effects on the muscle characteristics (quality and quantity) of caponized male chickens fed before or after sexual maturity. Healthy and uniform Single Comb White Leghorn chickens were caponized at 3-week-old. Feeding was conducted until 16-week-old in trial 1 or from 12-week-old to 26-week-old in trial 2. Ten sham operated male chickens (Sham) were also assigned to each trial as the control group. Chickens used in both trials were housed in individual cages with each chicken representing one replicate. The results showed that early caponization (3-week-old) significantly increased (p<0.05) body weight and pectoral major muscle weight and percentage at 16-week-old compared to the Sham in trial 1. Caponization significantly increased (p<0.05) the protein content of the pectoral major muscle, but decreased (p<0.05) the ash content. Late caponization (12-week-old) significantly decreased (p<0.05) the ash content, myofibrillar ATPase activity and emulsification capacity of the pectoral major muscle in mature capons (26-week-old) compared to the Sham in trial 2. Early caponization (3-week-old) only increased the weight and protein content of the pectoral major muscle with decreased ash content in 16-week-old capons. Late caponization (12-week-old) showed no affects on pectoral major muscle quantity, while it decreased the ATPase activity and enhanced the emulsification capacity in mature (26-week-old) capons. Hence, the muscle quality improvement was shown as capons were fed to sexual maturity.

• Journal of Fashion Business
• /
• v.17 no.2
• /
• pp.1-16
• /
• 2013

Subcultural style is the center of subcultural identity and the clothes and adornments are the most visible symbol of membership. The Goth subculture has associated tastes in music, aesthetics, and fashion. The style symbolized the strong subjective subcultural identity held by most Goths and acted as the practical basis to demonstrate their commitment to the subculture. This study investigates the aesthetic and the style of Goth subculture in its heyday of 1980s which has continued to affect mainstream fashion and culture since its birth. In order to inquire the concept of subculture and its style, this study executes literature survey as well as investigates the images of street style magazines to analyze the visual elements. The stylistic and the aesthetic characteristics of Goth subcultural style analyzed in this study are grouped into four categories as follows: first, Victoriana, which embodies the fear of death and the nostalgia for the past using Victorian morning dresses and corsets, second, vampirism, in that some Goths who are fascinated by vampires are costumed in vampire figures to advocate diabolism and decadence, third, sexual ambiguity of male Goths which emphasizes feminine appearance in the pursuit of androgyny, and fourth, sexual fetish of female Goths which represents aggressive eroticism utilizing fetish paraphernalia.

• Fashion & Textile Research Journal
• /
• v.22 no.6
• /
• pp.727-738
• /
• 2020

This study focused on popular YouTube subculture content and male YouTuber characteristics. We conducted a case study on YouTube videos and viewer's comments of male YouTubers who interacted with subculture or fashion themes within YouTube. Based on Dick Hebdige's subculture theory, we categorized male subculture characteristics of style expression to show how YouTube plays a role in the formation of subculture. The representative types of male subculture were divided into metro sexual, adolescent boys, drag queen, and homosexual. YouTube simultaneously played a role in accumulating video viewing as well as indirect experiences in various communication activities and cultures among viewers. YouTube was used as a space for video producers as well as viewers and subscribers to discover and build identity. Subculture makes people aware of cultural diversity within society, and their doubles and lifestyles serve as important clues to track culture and fashion changes. This research is significant in the field of fashion media and subculture research due to its examination of male subculture phenomenon on YouTube based on an analysis of the video content of culture insiders and viewers' comments as well as immediate responses.

• Journal of Preventive Medicine and Public Health
• /
• v.32 no.2
• /
• pp.228-235
• /
• 1999

Objectives: Despite the importance of human immunodeficiency virus(HIV) transmission through heterosexual contact, the features of heterosexual transmission has not been well studied in Korea. So we conducted a cross sectional study to determine the transmission rates in married couples and assess risk factors for male to female heterosexual transmission of HIV. Methods: 169 HIV-infected males and their female sex partners were recruited from 1985 to tune 1998. We examined female sex partner's HIV infection status and interviewed male index partners and their female sex partners about demographic characteristics and sexual practices. We analysed heterosexual transmission rate by epidemiologic characteristics, disease status and sexual practices. And we assessed risk factors for HIV infection by univariate and multivariate analysis. Results: 30 female sex partners were infected at enrollment, yielding an transmission rate of 17.8%. Among couples who had used condoms consistently, none of the female sex partners was infected with HIV. In univariate analysis the significant risk factors were full blown AIDS status (OR=4.1, 95% CI: 1.49-11.43) and low CD4 T cell count of index partners at enrollment (OR=7.8, 95% CI: 2.19-27.80). In multivariate analysis HIV-1 RNA levels was significant risk factor when adjusted by CD4 T cell courts and mean sexual contacts per month (OR=19.2, 95% CI: 1.03-357.59) Conclusion: The risk of male to female heterosexual transmission increased with advanced stages of HIV infection in the index male partners.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.30 no.2 s.150
• /
• pp.326-337
• /
• 2006

Self-immersed narcissism image that had been limited only a feminine image has being represented as a new masculinity image through various fashion magazine and TV advertisements. Besides, this makes a contribution of enlargement of concern about the beauty and fashion of the male. In the past, fashion has been created through the fetishism about the female body. But, new male image has been changed during only 30-40 years compared with the traditional various social, cultural, sexual body images had been changed for a long time. On the contrary, changed modem male image removes the interval of difference between the male and the female image. Now, representative techniques of the masculinity perform both accommodation and disobedience against social and cultural rules. Social body, which has been understood that appearance represents almost all things, makes the good use of the space of discipline and reformation. This paper is tended to grasp the characteristics of male body image expressed modem male fashion and TV advertisements based on the examination about the changed male body image.

• Korean Journal of Health Education and Promotion
• /
• v.12 no.2
• /
• pp.73-89
• /
• 1995

This study was planned to investigate indirectly the effects of study environments of high school students such as family characteristics, availability of sex education, and possibility of exposure to unhealthy sexual environments. For this purpose, the level of knowledge and attitude towards sex of general and industrial high school students were compared because these two groups of students were believed to be different in those study variables. For this study, 600 students (300 male and 300 female students) from a general high school students and 400 (200 male and 200 female) from an industrial high school in one industrial city in Korea were surveyed with a structured questionnaire. The study results were as follows: 1. There were significant differences in selected family condition variables between general and industrial high school students. Proportions of students with single parents, those who live in houses other than their own, and those father's occupations were farming and manufacturing were higher in industrial high school students than in general high school students. 2. Female students wanted to have more knowledge on sex whereas male students were interested in things related to sexual acts in both general and industrial high school students. The largest proportion of students wanted to discuss their sex problems with their friends not with their parents. 3. More students in general high school thought that the sexual intercourse is natural and pretty than those in industrial high school, whereas more industrial high school students insisted on the sexual purity before marriage than general high school students. 4. About 65% of students surveyed agreed to making friends with opposite sex and, in fact, more than half either had experiences or were having friends of opposite sex. More students in industrial high school wanted to choose their marital partners based on advices of their parents than students in general high school. 5. More female students than male and more industrial high school students than general high school students were embarrassed with first wet dream or menstruation and felt guilty about the masturbation. 6. Level of knowledge on reproductive physiology, sex transmitted disease and contraception was higher in general high school students than in industrial high school students. These study results suggest that simple knowledge on sex of the general high school students does not seem to affect positively the students attitude towards sex and the unfavorable living conditions of industrial high school students seem to influence the students to become more sincere and healthy in their attitude towards sex and life. Therefore, more thoughtful consideration in contents and methods should be given when the sex education is provided to the high school students.

• The Journal of Korean Society for School & Community Health Education
• /
• v.9 no.2
• /
• pp.1-13
• /
• 2008

Objectives: Literature has shown the relationship between the use of harmful media and sexual behaviors among adolescents. Laws and regulations of violent and sexual mass media are getting stricter, but young children reported that they were still accessible to these harmful materials. It might be due to the development of new techniques in media delivery and new trends of game addict among Korean adolescents. Since there were very few studies on recent harmful media available to young children, the authors explore the usability of harmful media and identify related factors that can predict adolescent sexual attitudes and activities. Methods: This study was conducted secondary analysis using the internal data that were drawn from National Youth Committee's survey of adolescent harmful environment in 2007. The self-reported questionnaires were administered to 13,721 adolescents who were randomly selected based on strata of geography, school, and gender. Results: Adolescents accessed mostly to NC-19(No Children under 19) TV programs(35.8%) and AO(Adult Only) games(35.5%). Most of them reported that they did not have difficulty in the contact of these harmful media. The factors that can predict adolescent sexual intercourse are male adolescents, attending high school, not being satisfied with family life and school, contact with phone-advertising of sex, AO games and other online games, viewing adult videos, or reading adult books. Conclusions: When sex education is designed, an instructor considers not only students' demographic characteristics but also the strategies to deter the use of harmful media especially for game materials.