S-RNase-mediated gametophytic self-incompatibility （GSI） is controlled by a multiallelic S-locus at which two separate genes, the female （pistil） and male （pollen） specificity determinants, are tightly linked. T...S-RNase-mediated gametophytic self-incompatibility （GSI） is controlled by a multiallelic S-locus at which two separate genes, the female （pistil） and male （pollen） specificity determinants, are tightly linked. This review described both the identification of pollen specific F-box genes, SLF/SFBs, in Antirrhinum, Petunia and Prunus species and the demonstration of SLF/SFB as pollen determinant together with their functions in GSI response. Recent studies of how the pollen determinant functions in pollination reaction revealed that pollen determinant interacted with S-RNases in a non-allele-specific manner. It targeted all of the non-self S-RNases for ubiquitination through a functional SCF complex and subsequent degradation via 26S proteasome pathway in compatible reaction. It allows pollen tube to reach into the embryo sac and to finish double fertilization. In incompatible response, the intact self S-RNases were left to function as a cytotoxin that degrades self-pollen tube RNA, resulting in the cessation of pollen tube growth.展开更多
The female characters in Conrad's Heart of Darkness and Victory on one hand seem to be either too idealistic or rather uncivilized and insignificant.On the other hand,they have indispensable functions:they prepare...The female characters in Conrad's Heart of Darkness and Victory on one hand seem to be either too idealistic or rather uncivilized and insignificant.On the other hand,they have indispensable functions:they prepare the precondition for the plot,they can reverse the gender stereotype,and they help the inner growth of male protagonists.Even so,the focus of Joseph Conrad is still a patriarchal society where women are motivated by men.展开更多
Angela Carter is a famous contemporary British female writer with a variety of creative styles, famous for Gothic style, magic realism and new feminism. As one of the representatives of feminist writers in the last ce...Angela Carter is a famous contemporary British female writer with a variety of creative styles, famous for Gothic style, magic realism and new feminism. As one of the representatives of feminist writers in the last century, Angela Carter devoted her life to prosecuting patriarchal society from the perspective of women, calling on women to find themselves and realize personality libera-tion. At the same time, she is also a rational feminist, advocating the establishment of harmonious rather than antagonistic social re-lations with men and women.This article will mainly use text analysis and contrast and comparison to study the image of the male and female image in Angela Carter's modern fairy tale, and explore the reasons. On the basis of the text analysis, this paper will study the transformation of female image from the change of female status and personality. The laws of comparison and comparison will be used to explore the differences between men and women in the traditional fairy tale and the modern fairy tale of Angela Cart-er. The study found that in Carter's reconstruction of the fairy tale, the female image dares to break through the inherent status, and constantly launches the impact on the men's rights, seeking individual independence and self-liberation, and the male image is more diversified and more realistic and vivid. Through this study, it is hoped that the reader will have a deeper and more compre-hensive understanding of Angela Carter and his work, and find out the new feminist connotation contained in his work, thus ending the dualistic confrontation of the male and female and establishing a harmonious relationship.展开更多
In Victorian Age, many literary works recorded the social realities and traditional social value system, and Oscar Wilde's The Importance of Being Earnest is a good case in point. In this play, males are valued in...In Victorian Age, many literary works recorded the social realities and traditional social value system, and Oscar Wilde's The Importance of Being Earnest is a good case in point. In this play, males are valued in terms of both birth condition and economic basis, which are two general standards from the traditional value system of the mainstream society. Oscar Wilde in this play satirizes the restrained and distorted traditional values and the hypocritical Victorian society. This paper will probe into how the social status and economic conditions determine males' fate in Victorian Age and on Oscar Wilde's creation.展开更多
Previous study indicated that the thermo-sensitive genic malesterile(TGMS) gene in rice was regulated by temperature.TGMS rice plays an important role in hybrid rice production,because the application of the TGMS syst...Previous study indicated that the thermo-sensitive genic malesterile(TGMS) gene in rice was regulated by temperature.TGMS rice plays an important role in hybrid rice production,because the application of the TGMS system in two-line breeding is laborsaving,timesaving,simple,inexpensive,efficient,and eliminating the limitations of the cytoplasmic male sterility(CMS) system.'AnnongS' is the first discovered and deeply studied TGMS rice lines in China.'AnnongS-1' and 'Y58S',two derivatives of TGMS line AnnongS,were both controlled by a single recessive gene named tms5,which was genetically mapped on chromosome 2.In this study,three populations('AnnongS-1' × 'Nanjing11','Y58S' × 'Q611',and 'Y58S' × 'Guanghui122') were developed and used for the molecular fine mapping of the tms5 gene.By analyzing recombination events in the sterile individuals using a total of 125 probes covering the tms5 region,the tms5 gene was physically mapped to a 19-kb DNA fragment between two markers 4039-1 and 4039-2,which were located on the BAC clone AP004039.After the construction of the physical map between two markers 4039-1 and 4039-2,a member(ONAC023) of the NAC(NAM-ATAF-CUC-related) gene family was identified as the candidate gene of the tms5 gene.展开更多
Ecofeminism is a theory that combines women's unfair condition with nature's overuse by human.It "argues that a strong parallel exists between the oppression and subordination of women in families and soc...Ecofeminism is a theory that combines women's unfair condition with nature's overuse by human.It "argues that a strong parallel exists between the oppression and subordination of women in families and society and the degradation of nature through the construction of differences into conceptual binaries and ideological hierarchies that allow a systematic justification of domination by subjects classed into higher-ranking categories over objects classed into lower-ranking categories" (Miao 184). Tar Baby is the fourth work of Tony Morrison which explores African-Americans' poor status, especially black women's. From ecofeminism's perspective, women and nature share same destiny. Being fed up with the bad condition, women has struggling against male world and tried to win their own happiness and identity, appealing to mutual respect and understanding.展开更多
The electrie conductivity of pollen life-force and male flowers of Larix olgensis on condition of low temperature adversity has been respectively measured by means of fluorescent dying method and conductivity method ...The electrie conductivity of pollen life-force and male flowers of Larix olgensis on condition of low temperature adversity has been respectively measured by means of fluorescent dying method and conductivity method in 1992 and 1994. The results indicate that:(1 ) If the same clonal pollen is treated at equal time at different low temperatures, there are significant differences in pollen life-force, the pollen life-force is the largest between O℃aild -3℃, in higher or lower temperature range, the pollen life-force will decrease. The measurement of electric conductivity of male flowers provcs that the low temperature of below -3℃ is the inain reason that the cell membrane is damaged and the pollen.life-force decreases. (2) The same clonal pollen life-force at the saine low temperature will gradually decrease with the increasing of frozen time. Its main reason is that suffocation and losing body fluid result in the damage of cell membrane, the measurement of electric conductivity of male flowers call prove that. (3) If pollen is treated with the same low temperature, the humidity will be the main factor of affecting pollen life-force. (4) There are significant differences in Larix olgensis's resistance against low temperature in its different growth stage, the male flower's resistance of near pollen spreading period is low. (5) The resistance is different within clones. (6) The resistance against low temperature of Larix call be incrcased by means of chemical treatment.展开更多
The aim of this study is to follow each development stage of inflorescence in order to understand the biological feature of flowering and the development of male gametophyte in Anthurium andreanum “Arizona' and ...The aim of this study is to follow each development stage of inflorescence in order to understand the biological feature of flowering and the development of male gametophyte in Anthurium andreanum “Arizona' and to try to find the optimum conditions for its pollination. The methods of dissection and paraffin section were adopted to examine the structural characteristics of anthurium’s tiny floret and the development of the microspore. All the florets of the anthurium arrange on the rhachis helically sub- tended by a colorful bract. Each tiny floret has one gynoecium, four tepals and four stamina. The bract and the florets show different colors during the whole blooming period. The ovary is bicarpellary and has two locules, each of which has one anatropous ovule. The placenta is of a central placentation type. The stylar canal cells not only can produce the secretory mucilage but also can release their own cytoplasm caused by their self-disintegration before the pistil reaches its maturity. The wall of the anther is composed of four layers: epidermis, endothecium, middle layer and tapetum. The tapetal cells and the middle layers’ cells degenerated completely dur- ing meiosis of microsporocytes. The pollen grains were 2-celled at the time of anther dehiscence. Early morning, when the inflores- cences stay at their fifth development stage, is the optimum opportunity for pistil to get pollen grains. The pollen-collection should be done at the end of the seventh stage.展开更多
The endogenous GAs, ABA and IAA in the shoot apices of 8-year-old Chinese pines, flowered, non-flowered and non-flowered but treated with GA4/7 were analyzed by GC-MS-SIM.The results demonstrated that GA3 and GA9 leve...The endogenous GAs, ABA and IAA in the shoot apices of 8-year-old Chinese pines, flowered, non-flowered and non-flowered but treated with GA4/7 were analyzed by GC-MS-SIM.The results demonstrated that GA3 and GA9 levels were obviously higher in flowered plants than in non-flowered. A peak value of GA3 in flowered plants occurred after appearance of the earliest auxiliary bud primorda which had the possibility of transforming into male cone bud primordia and before the morphological initiation of male cone bud primordia. Exogenously applied GA4/7 could enhance the endogenous GA3 and GA9, this may benefit the promotion of male cone buds in Chinese pine. The relations among ex-ogenously applied GA4/7 endogenous GAs, ABA and IAA in the shoot apices, and the initiation of male cone bud are discussed.展开更多
Coronavirus disease 2019(COVID-19),caused by severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has spread throughout the world involving more than 200 countries with more than 3 million confirmed cases and o...Coronavirus disease 2019(COVID-19),caused by severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has spread throughout the world involving more than 200 countries with more than 3 million confirmed cases and over 200,000 deaths worldwide.[1]COVID-19 patients primarily present with respiratory symptoms showing abnormal lung changes on chest X-ray or computed tomography(CT)with typical imaging appearances of ground glass opacities and consolidation.展开更多
Director Jonathan Demme’s The Silence of the Lambs is an enduring piece of cinema.It is a film in history to win Oscar in five of the major categories:best director,best actress,best actor,best screenplay and best pi...Director Jonathan Demme’s The Silence of the Lambs is an enduring piece of cinema.It is a film in history to win Oscar in five of the major categories:best director,best actress,best actor,best screenplay and best picture.What’s compelling of the picture is that the story tends to focus mostly on the feminine perspective of the heroine,Clarice Starling.This thesis,therefore,aims to offer an interpretation of The Silence of the Lambs from the feminist perspective.As a young FBI trainee,Starling works under great patriarchal oppression in a male-dominated workforce due to the classic male gaze and the constant sexual harassment.Through struggling to track down the serial killer,Starling alone solves the crime and proves that a woman is as capable of working as a man.As a matter of fact,she has,to a large extent,subverted the male gaze,power,privilege and authority.展开更多
In most of Lawrence's works, men are described to be handsome, healthy and energetic superficially, yet women may probe into their inner world to know them better. But under the disguise of their attractive appear...In most of Lawrence's works, men are described to be handsome, healthy and energetic superficially, yet women may probe into their inner world to know them better. But under the disguise of their attractive appearance, women have found that men are evil, selfish, cold-blooded, hypocritical and degraded. They are criminals to the nature ,women , children and even to themselves. This essay will ana lyze women's views on the male world in details.展开更多
In both of his two short stories"The Birthmark"and"Rappaccini's Daughter", Hawthorne depicts the destruction of young women caused by male anxiety over their beauty and sexuality, which poses a...In both of his two short stories"The Birthmark"and"Rappaccini's Daughter", Hawthorne depicts the destruction of young women caused by male anxiety over their beauty and sexuality, which poses a threat to their self-control and absolute authority. The anxiety is essentially rooted in the gender view of Hawthorne's time when women are stereotyped either angle or whole according to male projection. As the source of uncontrollable passion feared by male, sexuality of female is often demonized, suppressed and eradicated.展开更多
Amy Tan is a famous Chinese American woman writer.Her first novel The Joy Luck Club has gained success immediately after its publication.The book tells the stories about four Chinese mothers and four Chinese American ...Amy Tan is a famous Chinese American woman writer.Her first novel The Joy Luck Club has gained success immediately after its publication.The book tells the stories about four Chinese mothers and four Chinese American daughters,while the male im⁃ages are usually ignored by readers.This paper attempts to analyze male images through hegemonic masculinity,explore males’at⁃titude towards women,and discuss women’s reaction to men’s dominance.The paper criticizes men’s absolute dominance over women in old China and modern America.By analyzing the males’characteristics in old China and modern America,the paper concludes that men and women are equal in the society and women should recognize their position to protect themselves in patriar⁃chal society.展开更多
A screen for Arabidopsis fertility mutants, mutagenized by low-energy argon ion beam, yielded two partial male-sterile mutants tc243-1 and tc243-2 which have similar phenotypes. tc243-2 was investigated in detail. The...A screen for Arabidopsis fertility mutants, mutagenized by low-energy argon ion beam, yielded two partial male-sterile mutants tc243-1 and tc243-2 which have similar phenotypes. tc243-2 was investigated in detail. The segregation ratio of the mutant phenotypes in the M2 pools suggested that mutation behaved as single Mendelian recessive mutations, tc243 showed a series of mutant phenotypes, among which partial male-sterile was its striking mutant characteristic. Phenotype analysis indicates that there are four factors leading to male sterility, a. Floral organs normally develop inside the closed bud, but the anther filaments do not elongate sufficiently to position the locules above the stigma at anthesis, b. The anther locules do not dehisce at the time of flower opening （although limited dehiscence occurs later）, c. Pollens of mutant plants develop into several types of pollens at the trinucleated stage. as determined by staining with DAPI （4＇,6-diamidino-2-phenylindole）. which shows a variable size. shape and number of nucleus. d. The viability of pollens is lower than that of the wild type on the germination test in vivo and vitro.展开更多
It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her exce...It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her excellent performance in Shylock's suit also exhibits her extraordinary splendor as the focus of the whole play. However, she has to accept the conventional orientation for a woman's fate, obedient to her father and her husband, and yet she cannot participate in the social career unless in disguise.展开更多
The heavy ions with high linear energy transfer and high relative biological effectiveness are much more deleterious on the male germ cells, ones of the most radiosensitive cells of the body,than low-LET ionizing radi...The heavy ions with high linear energy transfer and high relative biological effectiveness are much more deleterious on the male germ cells, ones of the most radiosensitive cells of the body,than low-LET ionizing radiation such as X-ray or gamma-ray. The effects of low-dose heavy ion irradiation on male germ cell adaptation and genetics and the possible mechanism of this adaptation are summarized in our laboratory. Our results showed that the heavy ion irradiation significantly increased the frequencies of chromosomal aberrations in spermatogonia and spermato-cytes of mice, the low dose heavy ion irradiation could induce significant adaptative response on mouse testes and human sperm, and pre-exposure of mouse testes with low-dose heavy ion can markedly alleviate damage effects in-duced by subsequent high-dose irradiation. The increase of SOD activity and decrease of lipid peroxidation levels induced by low-dose ionizing radiation may be involved in this adaptative response mechanism. These studies may provide useful theoretical and clinical bases for radioprotection of reproductive potential and assessment of genetic risks for human exposed to heavy ions in radiotherapy and in outer space environment.展开更多
基金This work was supported by grants from Three Founda-tions of Hunan Province (00JZY2155) and International Cooperation Project
文摘S-RNase-mediated gametophytic self-incompatibility （GSI） is controlled by a multiallelic S-locus at which two separate genes, the female （pistil） and male （pollen） specificity determinants, are tightly linked. This review described both the identification of pollen specific F-box genes, SLF/SFBs, in Antirrhinum, Petunia and Prunus species and the demonstration of SLF/SFB as pollen determinant together with their functions in GSI response. Recent studies of how the pollen determinant functions in pollination reaction revealed that pollen determinant interacted with S-RNases in a non-allele-specific manner. It targeted all of the non-self S-RNases for ubiquitination through a functional SCF complex and subsequent degradation via 26S proteasome pathway in compatible reaction. It allows pollen tube to reach into the embryo sac and to finish double fertilization. In incompatible response, the intact self S-RNases were left to function as a cytotoxin that degrades self-pollen tube RNA, resulting in the cessation of pollen tube growth.
文摘The female characters in Conrad's Heart of Darkness and Victory on one hand seem to be either too idealistic or rather uncivilized and insignificant.On the other hand,they have indispensable functions:they prepare the precondition for the plot,they can reverse the gender stereotype,and they help the inner growth of male protagonists.Even so,the focus of Joseph Conrad is still a patriarchal society where women are motivated by men.
文摘Angela Carter is a famous contemporary British female writer with a variety of creative styles, famous for Gothic style, magic realism and new feminism. As one of the representatives of feminist writers in the last century, Angela Carter devoted her life to prosecuting patriarchal society from the perspective of women, calling on women to find themselves and realize personality libera-tion. At the same time, she is also a rational feminist, advocating the establishment of harmonious rather than antagonistic social re-lations with men and women.This article will mainly use text analysis and contrast and comparison to study the image of the male and female image in Angela Carter's modern fairy tale, and explore the reasons. On the basis of the text analysis, this paper will study the transformation of female image from the change of female status and personality. The laws of comparison and comparison will be used to explore the differences between men and women in the traditional fairy tale and the modern fairy tale of Angela Cart-er. The study found that in Carter's reconstruction of the fairy tale, the female image dares to break through the inherent status, and constantly launches the impact on the men's rights, seeking individual independence and self-liberation, and the male image is more diversified and more realistic and vivid. Through this study, it is hoped that the reader will have a deeper and more compre-hensive understanding of Angela Carter and his work, and find out the new feminist connotation contained in his work, thus ending the dualistic confrontation of the male and female and establishing a harmonious relationship.
文摘In Victorian Age, many literary works recorded the social realities and traditional social value system, and Oscar Wilde's The Importance of Being Earnest is a good case in point. In this play, males are valued in terms of both birth condition and economic basis, which are two general standards from the traditional value system of the mainstream society. Oscar Wilde in this play satirizes the restrained and distorted traditional values and the hypocritical Victorian society. This paper will probe into how the social status and economic conditions determine males' fate in Victorian Age and on Oscar Wilde's creation.
文摘Previous study indicated that the thermo-sensitive genic malesterile(TGMS) gene in rice was regulated by temperature.TGMS rice plays an important role in hybrid rice production,because the application of the TGMS system in two-line breeding is laborsaving,timesaving,simple,inexpensive,efficient,and eliminating the limitations of the cytoplasmic male sterility(CMS) system.'AnnongS' is the first discovered and deeply studied TGMS rice lines in China.'AnnongS-1' and 'Y58S',two derivatives of TGMS line AnnongS,were both controlled by a single recessive gene named tms5,which was genetically mapped on chromosome 2.In this study,three populations('AnnongS-1' × 'Nanjing11','Y58S' × 'Q611',and 'Y58S' × 'Guanghui122') were developed and used for the molecular fine mapping of the tms5 gene.By analyzing recombination events in the sterile individuals using a total of 125 probes covering the tms5 region,the tms5 gene was physically mapped to a 19-kb DNA fragment between two markers 4039-1 and 4039-2,which were located on the BAC clone AP004039.After the construction of the physical map between two markers 4039-1 and 4039-2,a member(ONAC023) of the NAC(NAM-ATAF-CUC-related) gene family was identified as the candidate gene of the tms5 gene.
文摘Ecofeminism is a theory that combines women's unfair condition with nature's overuse by human.It "argues that a strong parallel exists between the oppression and subordination of women in families and society and the degradation of nature through the construction of differences into conceptual binaries and ideological hierarchies that allow a systematic justification of domination by subjects classed into higher-ranking categories over objects classed into lower-ranking categories" (Miao 184). Tar Baby is the fourth work of Tony Morrison which explores African-Americans' poor status, especially black women's. From ecofeminism's perspective, women and nature share same destiny. Being fed up with the bad condition, women has struggling against male world and tried to win their own happiness and identity, appealing to mutual respect and understanding.
文摘The electrie conductivity of pollen life-force and male flowers of Larix olgensis on condition of low temperature adversity has been respectively measured by means of fluorescent dying method and conductivity method in 1992 and 1994. The results indicate that:(1 ) If the same clonal pollen is treated at equal time at different low temperatures, there are significant differences in pollen life-force, the pollen life-force is the largest between O℃aild -3℃, in higher or lower temperature range, the pollen life-force will decrease. The measurement of electric conductivity of male flowers provcs that the low temperature of below -3℃ is the inain reason that the cell membrane is damaged and the pollen.life-force decreases. (2) The same clonal pollen life-force at the saine low temperature will gradually decrease with the increasing of frozen time. Its main reason is that suffocation and losing body fluid result in the damage of cell membrane, the measurement of electric conductivity of male flowers call prove that. (3) If pollen is treated with the same low temperature, the humidity will be the main factor of affecting pollen life-force. (4) There are significant differences in Larix olgensis's resistance against low temperature in its different growth stage, the male flower's resistance of near pollen spreading period is low. (5) The resistance is different within clones. (6) The resistance against low temperature of Larix call be incrcased by means of chemical treatment.
基金Supported by the Graduate Students’ Research Foundation of Beijing Forestry University
文摘The aim of this study is to follow each development stage of inflorescence in order to understand the biological feature of flowering and the development of male gametophyte in Anthurium andreanum “Arizona' and to try to find the optimum conditions for its pollination. The methods of dissection and paraffin section were adopted to examine the structural characteristics of anthurium’s tiny floret and the development of the microspore. All the florets of the anthurium arrange on the rhachis helically sub- tended by a colorful bract. Each tiny floret has one gynoecium, four tepals and four stamina. The bract and the florets show different colors during the whole blooming period. The ovary is bicarpellary and has two locules, each of which has one anatropous ovule. The placenta is of a central placentation type. The stylar canal cells not only can produce the secretory mucilage but also can release their own cytoplasm caused by their self-disintegration before the pistil reaches its maturity. The wall of the anther is composed of four layers: epidermis, endothecium, middle layer and tapetum. The tapetal cells and the middle layers’ cells degenerated completely dur- ing meiosis of microsporocytes. The pollen grains were 2-celled at the time of anther dehiscence. Early morning, when the inflores- cences stay at their fifth development stage, is the optimum opportunity for pistil to get pollen grains. The pollen-collection should be done at the end of the seventh stage.
基金The research was funded by the National Natural Science Foundation of China
文摘The endogenous GAs, ABA and IAA in the shoot apices of 8-year-old Chinese pines, flowered, non-flowered and non-flowered but treated with GA4/7 were analyzed by GC-MS-SIM.The results demonstrated that GA3 and GA9 levels were obviously higher in flowered plants than in non-flowered. A peak value of GA3 in flowered plants occurred after appearance of the earliest auxiliary bud primorda which had the possibility of transforming into male cone bud primordia and before the morphological initiation of male cone bud primordia. Exogenously applied GA4/7 could enhance the endogenous GA3 and GA9, this may benefit the promotion of male cone buds in Chinese pine. The relations among ex-ogenously applied GA4/7 endogenous GAs, ABA and IAA in the shoot apices, and the initiation of male cone bud are discussed.
文摘Coronavirus disease 2019(COVID-19),caused by severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has spread throughout the world involving more than 200 countries with more than 3 million confirmed cases and over 200,000 deaths worldwide.[1]COVID-19 patients primarily present with respiratory symptoms showing abnormal lung changes on chest X-ray or computed tomography(CT)with typical imaging appearances of ground glass opacities and consolidation.
文摘Director Jonathan Demme’s The Silence of the Lambs is an enduring piece of cinema.It is a film in history to win Oscar in five of the major categories:best director,best actress,best actor,best screenplay and best picture.What’s compelling of the picture is that the story tends to focus mostly on the feminine perspective of the heroine,Clarice Starling.This thesis,therefore,aims to offer an interpretation of The Silence of the Lambs from the feminist perspective.As a young FBI trainee,Starling works under great patriarchal oppression in a male-dominated workforce due to the classic male gaze and the constant sexual harassment.Through struggling to track down the serial killer,Starling alone solves the crime and proves that a woman is as capable of working as a man.As a matter of fact,she has,to a large extent,subverted the male gaze,power,privilege and authority.
文摘In most of Lawrence's works, men are described to be handsome, healthy and energetic superficially, yet women may probe into their inner world to know them better. But under the disguise of their attractive appearance, women have found that men are evil, selfish, cold-blooded, hypocritical and degraded. They are criminals to the nature ,women , children and even to themselves. This essay will ana lyze women's views on the male world in details.
文摘In both of his two short stories"The Birthmark"and"Rappaccini's Daughter", Hawthorne depicts the destruction of young women caused by male anxiety over their beauty and sexuality, which poses a threat to their self-control and absolute authority. The anxiety is essentially rooted in the gender view of Hawthorne's time when women are stereotyped either angle or whole according to male projection. As the source of uncontrollable passion feared by male, sexuality of female is often demonized, suppressed and eradicated.
文摘Amy Tan is a famous Chinese American woman writer.Her first novel The Joy Luck Club has gained success immediately after its publication.The book tells the stories about four Chinese mothers and four Chinese American daughters,while the male im⁃ages are usually ignored by readers.This paper attempts to analyze male images through hegemonic masculinity,explore males’at⁃titude towards women,and discuss women’s reaction to men’s dominance.The paper criticizes men’s absolute dominance over women in old China and modern America.By analyzing the males’characteristics in old China and modern America,the paper concludes that men and women are equal in the society and women should recognize their position to protect themselves in patriar⁃chal society.
基金Key Innovative Project of Chinese Academy of Sciences(No.KSCX2-SW-324)Director's Foundation of the Institute of Plasma Physics(No.152900500301)
文摘A screen for Arabidopsis fertility mutants, mutagenized by low-energy argon ion beam, yielded two partial male-sterile mutants tc243-1 and tc243-2 which have similar phenotypes. tc243-2 was investigated in detail. The segregation ratio of the mutant phenotypes in the M2 pools suggested that mutation behaved as single Mendelian recessive mutations, tc243 showed a series of mutant phenotypes, among which partial male-sterile was its striking mutant characteristic. Phenotype analysis indicates that there are four factors leading to male sterility, a. Floral organs normally develop inside the closed bud, but the anther filaments do not elongate sufficiently to position the locules above the stigma at anthesis, b. The anther locules do not dehisce at the time of flower opening （although limited dehiscence occurs later）, c. Pollens of mutant plants develop into several types of pollens at the trinucleated stage. as determined by staining with DAPI （4＇,6-diamidino-2-phenylindole）. which shows a variable size. shape and number of nucleus. d. The viability of pollens is lower than that of the wild type on the germination test in vivo and vitro.
文摘It is said that there is no hero in The Merchant of Venice, but a heroine, who is Portia, an independent, intelligent and beautiful Renaissance lady, who makes great efforts to grasp and defend her happiness. Her excellent performance in Shylock's suit also exhibits her extraordinary splendor as the focus of the whole play. However, she has to accept the conventional orientation for a woman's fate, obedient to her father and her husband, and yet she cannot participate in the social career unless in disguise.
文摘The heavy ions with high linear energy transfer and high relative biological effectiveness are much more deleterious on the male germ cells, ones of the most radiosensitive cells of the body,than low-LET ionizing radiation such as X-ray or gamma-ray. The effects of low-dose heavy ion irradiation on male germ cell adaptation and genetics and the possible mechanism of this adaptation are summarized in our laboratory. Our results showed that the heavy ion irradiation significantly increased the frequencies of chromosomal aberrations in spermatogonia and spermato-cytes of mice, the low dose heavy ion irradiation could induce significant adaptative response on mouse testes and human sperm, and pre-exposure of mouse testes with low-dose heavy ion can markedly alleviate damage effects in-duced by subsequent high-dose irradiation. The increase of SOD activity and decrease of lipid peroxidation levels induced by low-dose ionizing radiation may be involved in this adaptative response mechanism. These studies may provide useful theoretical and clinical bases for radioprotection of reproductive potential and assessment of genetic risks for human exposed to heavy ions in radiotherapy and in outer space environment.
