In fish,sex determination(SD) system shows high variation. The SD mechanisms include environmental and genetic regulation. The research on SD system and related genes in intensively studied fish species was reviewed. ...In fish,sex determination(SD) system shows high variation. The SD mechanisms include environmental and genetic regulation. The research on SD system and related genes in intensively studied fish species was reviewed. Although some genes have been described as sex-related,only DMRT1bY can be considered as a master sex determination gene and none of them has been utilized in aquaculture. The variation of fish SD system,the importance of sex-related genes in evolution research and the relations between environmental factors and sex-related genes were also discussed. The fish sex determination mechanism remains largely unknown. Further research needs to be done considering the significance of fish SD studies in basic and applied aspects.展开更多
The male writers＇ intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits asso...The male writers＇ intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits associated with femininity enunciated feminists＇ discourse to justify vindication of rights as regards women＇s cultural anxiety, political identification, and aesthetic experimentation. Similarly, the women writers＇ imaginative powers characterize women＇s emotions either reflecting shrinking subjectivity or elaborating notion of voluntary subjectivity as regards their experiences and existence, their passions and sensations, and their self and life. The 20th century women＇s writings raised inquiry against presentation of gendered self, performance of gender, gender discontent as regards with their sex and gender, which are assigned at birth as well as also for the alignment of biological sex, sexuality, gender identity, and gender roles. In this paper, the study of the four selected novels such as The Scarlet Letter, Tess of the D ＇Urbervilles, Emma, Surfacing, and Inner Line shows how circumstances, strata of time, and externalities of others objectify woman and her domestic space; how a woman perceives her deprivation as regards her own image which seems nobody to herself due to the sense of low perception; in what way sexual difference and gender-specific practices and ideology enforce woman to chide herself in the given environment and surroundings of legal codifications, moral prescriptions, and medical prognostications. The analyses of the novels draw how woman＇s experience as living subject in the vital dimension of human existence and utopian image of human fellowship is potentially undone by way of sexual exploitation, dismemberment, and embodiment. What kind of vulnerable moments force woman to withdraw from her body and fi＇om her essence is the center of concern in this paper？ While discussing the feminists＇ culture and ethics in their works, the focus is on the essentialized notion of gender-specific discrimination as well as on the frustrating double-consciousness that characterizes the cultural position of the other.展开更多
文摘In fish,sex determination(SD) system shows high variation. The SD mechanisms include environmental and genetic regulation. The research on SD system and related genes in intensively studied fish species was reviewed. Although some genes have been described as sex-related,only DMRT1bY can be considered as a master sex determination gene and none of them has been utilized in aquaculture. The variation of fish SD system,the importance of sex-related genes in evolution research and the relations between environmental factors and sex-related genes were also discussed. The fish sex determination mechanism remains largely unknown. Further research needs to be done considering the significance of fish SD studies in basic and applied aspects.
文摘The male writers＇ intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits associated with femininity enunciated feminists＇ discourse to justify vindication of rights as regards women＇s cultural anxiety, political identification, and aesthetic experimentation. Similarly, the women writers＇ imaginative powers characterize women＇s emotions either reflecting shrinking subjectivity or elaborating notion of voluntary subjectivity as regards their experiences and existence, their passions and sensations, and their self and life. The 20th century women＇s writings raised inquiry against presentation of gendered self, performance of gender, gender discontent as regards with their sex and gender, which are assigned at birth as well as also for the alignment of biological sex, sexuality, gender identity, and gender roles. In this paper, the study of the four selected novels such as The Scarlet Letter, Tess of the D ＇Urbervilles, Emma, Surfacing, and Inner Line shows how circumstances, strata of time, and externalities of others objectify woman and her domestic space; how a woman perceives her deprivation as regards her own image which seems nobody to herself due to the sense of low perception; in what way sexual difference and gender-specific practices and ideology enforce woman to chide herself in the given environment and surroundings of legal codifications, moral prescriptions, and medical prognostications. The analyses of the novels draw how woman＇s experience as living subject in the vital dimension of human existence and utopian image of human fellowship is potentially undone by way of sexual exploitation, dismemberment, and embodiment. What kind of vulnerable moments force woman to withdraw from her body and fi＇om her essence is the center of concern in this paper？ While discussing the feminists＇ culture and ethics in their works, the focus is on the essentialized notion of gender-specific discrimination as well as on the frustrating double-consciousness that characterizes the cultural position of the other.
