• Title/Summary/Keyword: sexual values

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Relationship between the sexual and the vegetative organs in a Polygonatum humile (Liliaceae) population in a temperate forest gap

  • Min, Byeong-Mee
    • Journal of Ecology and Environment
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    • v.41 no.9
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    • pp.256-264
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    • 2017
  • Background: The aim of this study was to clarify the relationship between the sexual reproduction and the resource allocation in a natural Polygonatum humile population grown in a temperate mixed forest gap. For this aim, the plant size, the node which flower was formed, the fruiting rate, and the dry weight of each organ were monitored from June 2014 to August 2015. Results: Firstly, in 3-13-leaf plants, plants with leaves ${\leq}8$ did not have flowers and in plants with over 9 leaves the flowering rate increased with the number of leaves. Among plants with the same number of leaves, the total leaf area and dry weight of flowering plants were larger than those of non-flowering plants. The minimum leaf area and dry weight of flowering plants were $100cm^2$ and 200 mg, respectively. Secondary, the flowers were formed at the 3rd~8th nodes, and the flowering rate was highest at the 5th node. Thirdly, cumulative values of leaf properties from the last leaf (the top leaf on a stem) to the same leaf rank were greater in a plant with a reproductive organ than in a plant without a reproductive organ. Fourthly, fruit set was 6.1% and faithful fruit was 2.6% of total flowers. Biomasses of new rhizomes produced per milligram dry weight of leaf were $0.397{\pm}190mg$ in plants that set fruit and $0.520{\pm}0.263mg$ in plants that did not, and the difference between the 2 plant groups was significant at the 0.1% level. Conclusions: P. humile showed that the 1st flower formed on the 3rd node from the shoot's base. And P. humile showed the minimum plant size needed in fruiting, and fruiting restricted the growth of new rhizomes. However, the fruiting rate was very low. Thus, it was thought that the low fruiting rate caused more energy to invest in the rhizomes, leading to a longer rhizome. A longer rhizome was thought to be more advantageous than a short one to avoid the shading.

Development and Application of Tumblr's API Permalink Automatic Extractor - Focusing on the Prevention of Secondary Damage in the Unauthorized Video - (텀블러의 API 퍼머링크(Permalink) 자동추출기 개발 및 활용방안 - 비동의 영상물 2차 피해방지 방안을 중심으로 -)

  • Oh, Wan Gyun;Jeong, Dae Yong
    • Journal of Digital Forensics
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    • v.12 no.3
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    • pp.71-82
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    • 2018
  • Using small cameras such as smartphones, criminals shoot secretly in public restrooms and women's changing rooms. And Revenge porn is also increasing. As a result social damage is increasing. Tumblr is an overseas service and it is very difficult to work with Tumbler on international legal cooperation and deletions. Thus In order to block the distribution of videos, victims must find and report the video URL themselves. But it's hard for victims who lack IT expertise to proceed those procedure. In this study, we automatically collect the URL of stored information and hash values of the images from API permlink of Tumbler blog. It is then saved as a document file with and presented to the victim. Through these technical methods, we can help victims report violations easily and quickly.

Characterization of ovarian culture in vitro and sex steroids in vivo by recombinant eel gonadotropin treatments in the eel Anguilla japonica

  • Kim, Dae-Geun;Kim, Jung-Hyun;Baek, Hea-Ja;Kim, Shin-Kwon;Min, Kwan-Sik;Kim, Dae-Jung
    • Fisheries and Aquatic Sciences
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    • v.25 no.1
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    • pp.12-19
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    • 2022
  • In the present study, we investigated the effects of recombinant eel gonadotropins (rec-GTHs) on maturation induction in immature ovarian culture in vitro and sex steroid hormones in vivo in the Japanese eel Anguilla japonica. To study the in vitro effects of rec-GTHs on estradiol-17β (E2) production in immature ovarian tissues, ovarian tissues were incubated with different doses of rec-follicle-stimulating hormone (rec-FSH) or rec-luteinizing hormone (rec-LH). The results revealed that the E2 levels in the rec-FSH (0.1, 0.5, or 1 ㎍/mL)- and rec-LH (0.1 or 0.5 ㎍/mL)-treated groups were significantly higher than those in the female eels from the control group. Furthermore, to investigate the in vivo effects of rec-GTHs on the gonadosomatic index (GSI) and plasma sex steroid hormone levels, the eels were injected intraperitoneally with eel's ringer (control), salmon pituitary extract (SPE; for female eels), human chorionic gonadotropin (hCG; for male eels), rec-FSH, rec-LH, and rec-FSH + rec-LH once a week. The results revealed that except for the SPE and the hCG groups, none of the groups exhibited a significant difference in GSI values. However, in vivo plasma E2 levels increased at the end of 4 weeks after rec-FSH treatment in female eels. Based on these results, it is suggested that rec-GTHs may have a positive effect on sexual maturation in female eels; however, further studies on complementary rec-protein production systems and additional glycosylation of rec-hormones are needed to elucidate hormone bioactivity in vivo and in vitro.

The Eighteenth Century Shakespeare's Women Audiences: From Objects of Sexual Appetite to Ladies of Quality (18세기 셰익스피어의 여성관객 -성적 타자에서 상류 인사로 거듭나기)

  • Han, Younglim
    • Journal of English Language & Literature
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    • v.55 no.4
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    • pp.745-765
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    • 2009
  • The Eighteenth Century Shakespeare's Women Audiences: From Objects of Sexual Appetite to Ladies of Quality Abstract Younglim Han (Kyungpook National U) This paper aims to give an account of the eighteenth century Shakespeare's women audiences who marked a turning-point in the history of Shakespeare's popularity. The 1736 formation of the 'Shakespeare Ladies Club' as a leading group of the female audience encouraged the theater managers to perform more Shakespeare. Stage productions relied more than ever on the favorites of women audiences. The establishment of female patronage was associated with the popularity of Shakespeare's crossed-dressed comedies and actresses in 'breeches' part. The outstanding achievement of the Ladies was their contribution to the promotion of Shakespeare's status as an embodiment of British culture and the acknowledgement of the dignity of national literature. They were successful in securing the native sense of Shakespeare in place of Italian opera and Harlequin pantomime. The recognition of the national significance of Shakespeare led a campaign to erect his monument in Westminster Abbey. The female audience's claim to the respectable Shakespeare provided the stimulus for transforming his plays in the interests of family values such as marital duty and domestic morality. Marina (1738), George Lillo's adaptation of Pericles that was dedicated to the Ladies, was an exemplary case. The domestic versions of Shakespeare stressed the importance of women characters and the idealization of them. Thus the reception of Shakespeare in the eighteenth century was characteristic of formulating the women audiences-performers-characters association. The female yearning for a refined theater was a significant achievement, considering its influence on ways of establishing the canonical Shakespeare in the eighteenth century.

Effects of North Korea Defectors' Living Experiences in South Korea on Their Self-perceptions and Perceptions of South Korea (남한사회에서의 생활경험이 탈북자에게 미치는 영향: 남한과 자신에 대한 인식을 중심으로)

  • Taeyun Jung ;Young-man Kim
    • Korean Journal of Culture and Social Issue
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    • v.10 no.3
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    • pp.61-81
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    • 2004
  • The purpose of this study was to investigate effects of North Korea defectors' living experiences in South Korea on their self-perceptions and perceptions of South Korea. For this purpose, a questionnaire was distributed to 66 defectors with no living experiences at all and 99 defectors with living experiences of an average of 2.7 years in South Korea. They were asked to rate their own as well as South Koreans' values, personality, attitudes toward sexual misbehavior, gender stereotypes. Also, they evaluated the society of South Korea and its political control. The results indicated that those defectors with living experiences tended to perceive more negatively their own and South Koreans as well, and yet that they were less negative for sexual misbehavior and weaker for gender stereotypes. Also, results suggested that living experiences led defectors to perceive South Korea in a more negative way. Those findings were discussed in terms of changes in culture.

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Use of Importance-Performance Analysis to Evaluate Open Space Environment functions in Taejon City (중요도(重要度)-성취도(成就度) 분석(分析)에 의한 대전시(大田市) 녹지환경(綠地環境) 기능(機能) 평가(評價))

  • Song, Hyung Sop
    • Korean Journal of Agricultural Science
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    • v.21 no.2
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    • pp.92-102
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    • 1994
  • This study examined Public Evaluation for functions of urban open space environment using a marketing strategy called Importance-Performance analysis. 12 main function attributes for urban open space environment were selected 150 respondents were sampled in Taejon city by personal interview. Ratings used mean values from a seven-point scale. Results were then graphically displayed on an easily interpreted two-dimensional 'Action Grid'. Generally Importance Ratings were high, but Performance Ratings were low relatively for various open space environment functions. In air pollution control function the difference was the most large. The results of rating scale analysis indicated repondents' sexual and residence period difference.

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The Multidimensional Masculinity in Nguyễn Huy Thiệp's Short Stories

  • Van Thuan Nguyen;Anh Dan Nguyen;Van Luan Nguyen
    • SUVANNABHUMI
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    • v.16 no.1
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    • pp.147-173
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    • 2024
  • Nguyễn Huy Thiệp is a pillar in Vietnamese cultural life after the Second Indochina War, and the fates of men and women at the beginning of Đổi mới (Renovation) is one of the prominent themes in his short stories. To show off sexual power, seek glory, and maintain his dominant position, Thiệp's heroes engage in a game of oppressing the weak, hunting animals, and harassing women. However, due to the complex changes in social life, moral values, and gender inequality, men in the postwar period quickly experienced the feeling of humiliation, impotence, and failure. In turn, the sophisticated aspects of masculinity demonstrate the cultural and ethical concerns of contemporary Vietnamese society. By exploring the multidimensional nature of masculinity expressed in Thiệp's stories, this study aims to resolve misconceptions about gender and the relationship between men and women in his work.

Reproductive Ecology of the Hard Shelled Mussel, Mytilus coruscus in Western Korea (한국 서해산 홍합, Mytilus coruscus의 번식생태)

  • Lee, Il-Ho;Chung, Ee-Yung;Son, Pal-Won;Shin, Moon-Seup
    • The Korean Journal of Malacology
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    • v.23 no.2
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    • pp.199-208
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    • 2007
  • The gonad index, gonadosomatic index, the condition index, reproductive cycle, first sexual maturity, and sex ratio of the hard shelled mussel, Mytilus coruscus were investigated by using histological analysis and morphometric data. Specimens were collected monthly in Kyeokpo, western Korea from January to December, 2006. The gonad index reached a maximum in February, and minimum in September. Both the monthly variations of the gonad index (GI) and the gonadosomatic index (GSI) reached a maximum in February. After that, their values continually decreased between March and April because of spawning. The monthly variation of the condition index coincides with the GI and the GSI. The spawning period was from February to April, with the main spawning occurring between February and March. The reproductive cycle of this species could be classified into six stages: early active stage (November to January), late active stage (November to February), ripe stage (December to April), partially spawned stage (February to April), degenerative stage (April to October), and resting stage (June to December ). Percentages of sexual maturity was over 50% for the female and male hard shelled mussels that ranges from 40.1 to 50.0 mm in shell length. The percentage was 100% for those that are over 50.1 mm. The sex ratios of females to males over 40.1 mm in shell length were not significantly different from a 1:1 sex ratio $(x^2\;=\;0.63,\;p\;>\;0.05)$. No evidence of hermaphroditism was found in histological sections of any hard shelled mussel examined.

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Why Does Draft Bamboo Bloom Once in a Lifetime on a Large Scale and then Die? -Analysis of External Environmental Factors of Draft Bamboo Flowering Area and Its Life Strategy- (조릿대는 왜 평생 한 번 대규모로 꽃을 피우고 죽는가? -조릿대 개화지의 외적 환경인자 분석 및 그 생활사 전략-)

  • Park, Seok-Gon;Choi, Song-Hyun
    • Korean Journal of Environment and Ecology
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    • v.31 no.6
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    • pp.564-577
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    • 2017
  • We investigated whether external environmental factors acted as a trigger for flowering in the draft bamboo (Sasa borealis (Hack.) Makino) blooming area of Mt. Baekwoon located in Gwangyang, South Jeolla Province. We then considered the cause for flowering, flowering patterns and life history strategies of the draft bamboo based on the investigation. There were no differences in soil, physical conditions, and light amount between the draft bamboo flowering and non-flowering areas. The precipitation and temperature of the areas in Korea and Japan where it blossomed from 2014 to 2017 were similar to the normal year values (for the past 30 years). Moreover, most of the draft bamboo died after flowering on a large scale, but some did not, or some culms were developed again. In other words, the draft bamboo bloomed simultaneously regardless of external environmental factors, and most of the culms were dead, but some were left alive. Therefore, it is considered that the flowering is triggered by the specific genes (referred as to clock genes) expressed periodically by a biological clock rather than the external environmental factors. Meanwhile, the draft bamboos generally bloom on a large scale by synchronizing with other ones in the distance but may also bloom several times separately on a small scale. It may be a kind of an insurance system established to disperse the risk of failed sexual propagation when flowering once in a lifetime. The results reveal that the long-period monocarpy of the draft bamboo has been strengthened to optimize the sexual propagation to overcome the increased environmental instability caused by the expansion of distribution of tropical bamboos and bamboo species to the temperate regions.

Reproductive biology of common carp (Cyprinus carpio Linnaeus, 1758) in Lake Hayq, Ethiopia

  • Tessema, Assefa;Getahun, Abebe;Mengistou, Seyoum;Fetahi, Tadesse;Dejen, Eshete
    • Fisheries and Aquatic Sciences
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    • v.23 no.6
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    • pp.16.1-16.10
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    • 2020
  • This study was conducted in Lake Hayq between January and December 2018. The objectives of this study were to determine the growth, condition, sex ratio, fecundity, length at first sexual maturity (L50), and spawning seasons of common carp (Cyprinus carpio). Monthly fish samples of C. carpio were collected using gillnets of stretched mesh sizes of 4, 6, 7, 8, 10, and 13 cm and beach seines of mesh size of 6 cm. Immediately after the fish were captured, total length (TL) and total weight (TW) for each individual were measured in centimeters and grams, respectively, and their relationship was determined using power function. Length at first maturity (L50) was determined for both males and females using the logistic regression model. The spawning season was determined from the frequency of mature gonads and variation of gonadosomatic index (GSI) values of both males and females. Fecundity was analyzed from 67 mature female specimens. The length and weight relationship of C. carpio was TW = 0.015TL2.93 for females and TW = 0.018TL2.87 for males that indicate negative allometric growth in both cases. The mean Fulton condition factor (CF) was 1.23 ± 0.013 for females and 1.21 ± 0.011 for males. The value of CF in both cases was > 1 that shows both sexes are in good condition. Among the total 1055 C. carpio collected from Lake Hayq, 459 (43.5%) were females and 596 (56.5%) were males. The chi-square test showed that there was a significant deviation between male and female numbers from 1:1 ratio (χ2= 22, df = 11, P > 0.05) within sampling months. The length at first sexual maturity (L50) for females and males were 21.5 and 17.5 cm, respectively. Males mature at smaller sizes than females. The spawning season of C. carpio was extended from February to April, and the peak spawning season for both sexes was in April. The average absolute fecundity was 28,100 ± 17,462. C. carpio is currently the commercially important fish while Nile tilapia fishery has declined in Lake Hayq. Therefore, this baseline data on growth, condition, and reproductive biology of common carp will be essential to understand the status of the population of carp and design appropriate management systems for the fish stock of Lake Hayq, Ethiopia, and adjacent countries.