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Endorphins, oxytocin, sexuality and romantic relationships: An understudied area
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作者 Marjan Khajehei Elmira Behroozpour 《World Journal of Obstetrics and Gynecology》 2018年第2期17-23,共7页
Endorphins are the body's natural opioids that are created and released by the central nervous system, hypothalamus and pituitary gland. Endorphins have a reputation for pain reduction, enhancing excitement or sat... Endorphins are the body's natural opioids that are created and released by the central nervous system, hypothalamus and pituitary gland. Endorphins have a reputation for pain reduction, enhancing excitement or satisfaction, boosting confidence, enabling control of emotions and generating feelings of euphoria, and are involved in the natural reward cycle. There is also evidence in the literature suggesting the role of endorphins in sexuality(including sexual function and sexual behaviours), as they may regulate the release of sex hormones, prolactin and growth hormone, which are involved in sexual function and love. Endogenous oxytocin is another intrinsic hormone whose role in inducing labour contractions, the delivery of the baby and stimulating lactation has been well studied. However, the potential impact of endorphins and oxytocin on sexuality and romantic relationships is not well understood. This article reviews the research on endorphins and endogenous oxytocin and how they relate to human sexuality and romantic relationships. Some animal studies report the effect of endorphin and oxytocin on sex hormones and mating behaviours, but these findings have not been supported by research into human behaviour, indicating many gaps in knowledge relating to the association between these hormones and human sexuality. 展开更多
关键词 ROMANTIC relationship sexual BEHAVIOUR sexual function ENDORPHINS OXYTOCIN sexualITY
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On Lawrence's View of Sexual Relationship from Lady Chatterley's Lover
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作者 方洁 《海外英语》 2018年第10期160-163,共4页
Lady Chatterley’s Lover is David Herbert Lawrence’s last novel of elaborating sexual relationship in extramarital affairs.Since the novel was published in 1928,scholars have been studying it from various perspective... Lady Chatterley’s Lover is David Herbert Lawrence’s last novel of elaborating sexual relationship in extramarital affairs.Since the novel was published in 1928,scholars have been studying it from various perspectives.Lawrence depicts intercourse between the two protagonists explicitly by actions,discourses and mental acts,and he once justified the publication of this book,which provides possibility and clues for probing his view of sex and sexual relationship through the novel.Staring from Mellors’discourses with Connie,the description of male characters,and the anima and animus archetypes in the novel,the paper analyzes Lawrence’s sexual theory and his advocacy for combination of body and soul based on the British society then and Lawrence’s own experience. 展开更多
关键词 lady chatterley’s lover D.H.LAWRENCE sexual relationship DISCOURSE character dualism anima and animus archetypes
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论负有照护职责人员性侵罪的规范属性
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作者 周详 黄英 《湖北警官学院学报》 2024年第2期129-143,共15页
对于负有照护职责人员性侵罪之规范属性的理解,存在拟制规范说、独立规范说以及推定规范说之争。其中,拟制规范说与独立规范说存在诸多理论弊病与缺陷,是不周全的理论解读。应当认为,《刑法》第236条之一并非拟制的“强奸”规定,也不规... 对于负有照护职责人员性侵罪之规范属性的理解,存在拟制规范说、独立规范说以及推定规范说之争。其中,拟制规范说与独立规范说存在诸多理论弊病与缺陷,是不周全的理论解读。应当认为,《刑法》第236条之一并非拟制的“强奸”规定,也不规制照护关系人间的自愿性行为,其只是为了降低照护领域性侵犯罪证明标准所作的法律推定。检方仅需证明该成年男性与14-16周岁未成年女性为照护关系以及二者发生了性关系的事实,法院便能据此推定隐性强制的存在,认为该性关系的发生违背了未成年女性的意志,从而肯定本罪的成立。为实现防控犯罪与保障人权二者之间的协调,立法为本罪设置了适当的刑罚。基于本罪之推定规范的属性,若照护人能证明性关系的发生确系未成年女性自愿,应对其作无罪处理。 展开更多
关键词 照护关系 性自决权 性同意能力 拟制规范 推定规范
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法益论与构成论解释:负有照护职责人员性侵罪的司法认定逻辑
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作者 刘畅 《乐山师范学院学报》 2024年第7期124-132,共9页
《刑法修正案(十一)》增设负有照护职责人员性侵罪,在一定程度上加强了未成年人性权利的刑法保护。在本罪的司法认定上应当理顺法益论与构成论两个基本面向的逻辑。法益论层面,身心健康说与纯粹的性自主权说均不能准确描述本罪的入罪理... 《刑法修正案(十一)》增设负有照护职责人员性侵罪,在一定程度上加强了未成年人性权利的刑法保护。在本罪的司法认定上应当理顺法益论与构成论两个基本面向的逻辑。法益论层面,身心健康说与纯粹的性自主权说均不能准确描述本罪的入罪理由,伦理关系限定下的性自主权说可以概括本罪的独有特征。构成论层面,“发生性关系”应当包括性交行为和猥亵行为。犯罪主体的特殊职责人员的范围也应当以伦理关系中的尊卑差异与年龄差距为标准加以限定。 展开更多
关键词 负有照护职责人员性侵罪 身心健康 性自主权 伦理关系
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A Survey on the Sexual Health of Elderly Patients with Cardiovascular Disease and Their Spouses 被引量:1
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作者 Ya-Nan Niu Jing Zhen +3 位作者 Jin Lu Qi Tang Yan-Ling Li Ying Li 《Journal of Clinical and Nursing Research》 2022年第3期157-162,共6页
Objective:To investigate the sexual relationship and sexual health of elderly patients with cardiovascular disease and their spouses,as well as to explore the relationship between sexual health and the quality of life... Objective:To investigate the sexual relationship and sexual health of elderly patients with cardiovascular disease and their spouses,as well as to explore the relationship between sexual health and the quality of life.Methods:A total of 206 CHD patients and their spouses(N=206)as well as 238 age-and gender-matched healthy people were recruited and investigated by using a seilf-designed sexual relationship and sexual health questionnaire and the SF-36 questionnaire;data analysis and comparison were carried out by using SPSS 22.0.Results:The scores of perceived health,marital satisfaction,sexual satisfaction,sexual function,and quality of life were all significantly different among elderly CVD patients,then-spouses,and healthy people(F=3.894,p<0.05).There was a significant correlation between perceived health,marital satisfaction,sexual satisfaction,and sexual function with quality of life(p<0.05).Conclusion:Sexual behavior is an important aspect of quality of life.The sexual relationship,sexual health,and quality of life of elderly patients with cardiovascular disease and their spouses were significantly lower than those of healthy people.It is recommended that more attention should be paid on the sexual relationship and sexual health of these patients and their spouses,with counselling offered when needed. 展开更多
关键词 CVD Elderly patients SPOUSE sexual relationship sexual health Quality of life
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Sexuality of Repartnered Men and Women in France: Sexual Behaviors, Perceptions, Expectations and Sexual Dysfunctions
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作者 Marie-Helene Colson Antoine Lemaire Patrick Klein 《Advances in Sexual Medicine》 2012年第1期10-19,共10页
Introduction. Although many epidemiological studies on sexuality have been published, none have specifically addressed male and female sexuality in repartnered couples. Aim. To investigate men and women’s sexual beha... Introduction. Although many epidemiological studies on sexuality have been published, none have specifically addressed male and female sexuality in repartnered couples. Aim. To investigate men and women’s sexual behaviors, perceptions and expectations, and the frequency of their sexual dysfunctions, with a focus on repartnered couples, i.e, subjects living with a partner in a stable relationship after divorce or widowhood (including both remarried couples and cohabitating unmarried couples). Methods. Analysis of telephone survey data collected from 1,002 French subjects (483 men, 519 women) ≥35years. Of these, 748 were living with their partner as part of a heterosexual couple. For these subjects, the sexuality of 149 repartnered subjects was compared to that of the other 599 subjects. Main Outcome Measures. A 39-item questionnaire assessing subjects' perceptions, expectations, sexual behaviors and dysfunctions. Results. Compared with other subjects, men and women in repartnered couples had more active sexuality and more interest in sexuality (men 93% vs 80%, P < 0.01, women 73% vs 65%, P < 0.05). They were generally more sensitive to feelings and emotions linked to their sexuality, and these feelings seemed to increase steadily with age. Their sexuality was more attuned to their partner’s pleasure (men 79% vs. 59% P < 0.001, women 50% vs. 34% P < 0.01). Concern for the future of the relationship and for sexuality was equally present for both groups, although repartnered couples were more often concerned about potential inadequacy and conflicts between the two partners. Although repartnered men seemed to be less affected by diminished desire, they had slightly higher rates of premature ejaculation and erectile dysfunction, and considered their quality of life to be more affected by these problems. Conclusion. The sexuality of repartnered couples remains poorly studied, but seems to differ from that of non-repartnered couples. Our findings open interesting avenues of research on the diagnosis and management of repartnered couples. 展开更多
关键词 Repartnered Couples Remarried Couples sexual BEHAVIOR sexual Inadequency MARITAL relationship
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Adolescent Sexual Behavior in an Urban Area of a Resource-Limited African Country, Cameroon
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作者 Felix Essiben Chantal Didjo +3 位作者 Valère Mve Koh Meka Esther Juliette Ngo Um Christiane Nsahlai Pascal Foumane 《Open Journal of Obstetrics and Gynecology》 2019年第6期923-935,共13页
Introduction: The substantial changes that occur in adolescence may lead to sexual behaviors that adversely affect their health. We have described sexual patterns in adolescents in various neighborhoods of Yaounde in ... Introduction: The substantial changes that occur in adolescence may lead to sexual behaviors that adversely affect their health. We have described sexual patterns in adolescents in various neighborhoods of Yaounde in order to underscore the sexual challenges that they face. Methods: We carried out a cross-sectional descriptive study in District number V of Yaounde from August 1st to 31st 2018. To characterize their sexual lives, we surveyed 1800 adolescents between 10 and 19, and analyzed the data using SPSS version 25.0. Results: In our study, 1023 (56.8%) adolescents were female, and 777 (43.2%) were male. Most of the adolescents were between ages 18 and 19 years (25.4%), unmarried (93.1%), had a secondary level of education (81.9%) and lived with their families (87.3%). One-third of the adolescents (30.7%) were sexually active and 41.1% had multiple sexual partners. The average age of coitarche was 15.1 years. Among the females, 17.1% reported one prior pregnancy and 30.8% had one abortion. Most of the sexual encounters were heterosexual (82.6%) and 30.2% regularly used male condoms. 66.0% and 47.7% obtained information about sexuality primarily from social media and mass media, respectively. Conclusion: Sexual encounters in adolescents of District V of Yaounde were premature, mostly heterosexual and often unprotected. The consequences were an increased incidence of early pregnancies and abortions. 展开更多
关键词 Adolescents sexual Behavior HETEROsexual relationship Yaoundé Cameroon
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Application of Weather Radar in Quantitative Forecast of Short-term Heavy Precipitation
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作者 Tao ZHANG Yekun LIU 《Meteorological and Environmental Research》 CAS 2022年第1期49-52,共4页
Based on the C-band Doppler radar data and the hourly precipitation data of heavy precipitation in Ulanqab from 2018 to 2019,the Z-I relationship of local convective precipitation and the correlation between verticall... Based on the C-band Doppler radar data and the hourly precipitation data of heavy precipitation in Ulanqab from 2018 to 2019,the Z-I relationship of local convective precipitation and the correlation between vertically integrated liquid water(VIL)and precipitation were studied.The heavy precipitation was divided into cumulus precipitation and cumulus mixed cloud precipitation,and different types of Z-I relationship was established to compare it with the traditional and unclassified overall optimal Z-I relationship.It shows that the estimation of different types of precipitation by different Z-I relationships was obviously better than the other two.Cumulus precipitation had a certain lag correlation with VIL,and the last 4 scanning VIL values within an hour had no indicative significance for precipitation;mixed precipitation was basically synchronized with VIL;the correlation decreased with the increase of the distance from radar,the corresponding degree of VIL and precipitation in stations within 30 km was significantly higher than that of other regional stations.A continuous non-zero VIL sequence close to a certain place can be used as a forecast indicator.Once a zero value appeared in the VIL time series,even it occurred only once,the two sequences before and after the zero value should be distinguished. 展开更多
关键词 short-term heavy precipitation Z-I relationship Optimization method VIL
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我国高校师生恋的法律规制路径选择
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作者 朱光星 罗翔 《浙江工商大学学报》 北大核心 2023年第4期76-87,共12页
高校师生之间权力、地位的差异使得学生难以对师生恋作出有效承诺。师生恋的存在容易使教师滥用权力、偏袒与其有恋情的学生,对其他学生形成潜在不公,同时给学习环境、学校荣誉等带来负面影响,且师生恋与性骚扰的界限模糊使得师生恋极... 高校师生之间权力、地位的差异使得学生难以对师生恋作出有效承诺。师生恋的存在容易使教师滥用权力、偏袒与其有恋情的学生,对其他学生形成潜在不公,同时给学习环境、学校荣誉等带来负面影响,且师生恋与性骚扰的界限模糊使得师生恋极易转化为性骚扰。美国高校对师生恋规制的不同模式对我国高校规制路径的探索具有启发意义。我国对师生恋的法律规制路径选择应将重点放在高校自治范围内的规制,高校应当在校规中明确禁止存在教学管理、学业指导或考核评价等利益关系的教师与学生之间有师生恋,对不存在此类关系的师生恋高校则应持强烈不鼓励的立场。同时也应对规制师生恋的具体范围、责任主体、事前预防、事后处理和程序设计等具体方面作出完善规定。 展开更多
关键词 师生恋 性同意 性骚扰 妇女权益保障法 高校自治
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基于结构式家庭疗法的综合随访护理服务对乳腺癌术后病人癌症复发恐惧及其配偶性关系的影响 被引量:3
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作者 陈曦 秦阳 《全科护理》 2023年第15期2099-2102,共4页
目的:分析基于结构式家庭疗法的随访护理服务对乳腺癌术后病人癌症复发恐惧及其配偶性关系的影响。方法:选取江苏省某三级甲等医院甲乳外科乳腺癌病人及其配偶为研究对象。按住院时间顺序编号将入选的病人分为对照组和干预组。对照组病... 目的:分析基于结构式家庭疗法的随访护理服务对乳腺癌术后病人癌症复发恐惧及其配偶性关系的影响。方法:选取江苏省某三级甲等医院甲乳外科乳腺癌病人及其配偶为研究对象。按住院时间顺序编号将入选的病人分为对照组和干预组。对照组病人每月进行常规的电话随访及门诊随访服务,干预组实施以结构式家庭疗法为主的随访护理服务,比较两组病人乳腺癌术后病人癌症复发恐惧及其配偶性功能情况。结果:干预后干预组FCR总分及FSFI得分明显低于干预前和对照组(P<0.001)。结论:基于结构式家庭疗法的综合随访护理服务有助于夫妻双方敞开心扉,正视两性关系存在的问题,能够对乳腺癌术后病人及其配偶的性关系、减少病人癌症复发恐惧有积极作用。 展开更多
关键词 乳腺癌 性关系 结构式家庭疗法 复发恐惧 配偶 综合随访护理服务
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系统权变视域下性侵犯罪未成年被害人“一站式”取证的规范形塑 被引量:2
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作者 苏菡乔 韩潇 《北京警察学院学报》 2023年第2期82-89,共8页
针对性侵未成年被害人的“一站式”取证能够在有效取证的同时,调动各方力量实现未成年人的最大利益的恢复与保障,是近年来我国规制性侵未成年人犯罪的制度创新选择。“一站式”取证可视为一个对性侵未成年人案件信息进行收集处理的动态... 针对性侵未成年被害人的“一站式”取证能够在有效取证的同时,调动各方力量实现未成年人的最大利益的恢复与保障,是近年来我国规制性侵未成年人犯罪的制度创新选择。“一站式”取证可视为一个对性侵未成年人案件信息进行收集处理的动态系统,其组织架构的形塑与系统权变理论具有耦合性。针对“一站式”取证进行完善,可基于系统权变理论,以案件信息输入、内部关系协调、证据信息输出为线索,对“一站式”取证进行规范化设计。 展开更多
关键词 系统权变 “一站式”取证 性侵犯罪 检警关系 询问流程
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针灸师在美国行医中常见的法律问题及对策——与一位前法官的对话
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作者 廖向红 李永明 陈大志 《中华中医药学刊》 CAS 北大核心 2023年第11期24-27,共4页
就针灸师行医中常见法律问题同一位具有丰富医疗案例审判经验的Diamond法官进行了对话和咨询,澄清了多个与针灸师密切相关的法律问题:在美国病人起诉医生一般从法院受理到结案大概需要6~7年;医生接到法院的传票后首先要通知保险公司,并... 就针灸师行医中常见法律问题同一位具有丰富医疗案例审判经验的Diamond法官进行了对话和咨询,澄清了多个与针灸师密切相关的法律问题:在美国病人起诉医生一般从法院受理到结案大概需要6~7年;医生接到法院的传票后首先要通知保险公司,并保管好病历记录;针灸师被告的法律理由不是医疗事故(malpractice,误医),是渎职(Negligence);医患关系是从针灸师为患者提供医疗就开始了;针灸师不能避免被病人告;为了应对被告,最重要的是针灸医生要保存完整的病历记录;纽约州长颁布了一个对医务人员及机构在新型冠状病毒感染(新冠)期间免责令,只要医院或诊所认真执行美国疾病控制与预防中心(CDC)的有关预防措施,新冠期间诊所的雇员或病人,在上班或诊治期间得了新冠,医院或诊所将不承担法律责任;针灸师如果被告性骚扰,显然是非常严重的指控。 展开更多
关键词 针灸师 法律 病历记录 渎职(Negligence) 医患关系 新冠 皮肤损伤 性骚扰
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亲密关系状况对人乳头瘤病毒疫苗有效性感知的影响:婚前性行为观念的中介作用
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作者 陈思懿 张曼芮 左一曼 《中国性科学》 2023年第4期156-160,共5页
目的分析亲密关系状况对青年女性感知人乳头瘤病毒(HPV)疫苗有效性的影响。方法于2021年3月至6月选取居住于中国内地地区的18~26岁女性作为研究对象。采用简单随机抽样的方式进行问卷调查,分析调查结果。结果中国青年女性的亲密关系状... 目的分析亲密关系状况对青年女性感知人乳头瘤病毒(HPV)疫苗有效性的影响。方法于2021年3月至6月选取居住于中国内地地区的18~26岁女性作为研究对象。采用简单随机抽样的方式进行问卷调查,分析调查结果。结果中国青年女性的亲密关系状况越稳定,其对HPV疫苗有效性感知越强烈(已婚>恋爱>单身),恋爱与单身女性对HPV疫苗有效性感知差异具有统计学意义(P<0.05),支持婚前性行为的观念在亲密关系状况影响女性对HPV疫苗的有效性感知上起到正向促进作用。结论不同亲密关系状况的青年女性对HPV疫苗的有效性感知不同,性观念成为解释不同亲密关系状况影响HPV疫苗有效性感知的一个重要机制。 展开更多
关键词 人乳头瘤病毒疫苗 性观念 亲密关系 有效性感知
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不育事件对男性自尊及性关系满意度的影响 被引量:15
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作者 邢鑫 潘伯臣 +3 位作者 杜强 梁潇 王旭梅 王烈 《中华男科学杂志》 CAS CSCD 2013年第3期223-227,共5页
目的:研究主观不育事件对男性自尊心、自信心、性关系满意度及夫妻整体关系的影响。方法:采用自尊心和性关系问卷(SEAR)对不育和生育体检(对照组)的男性进行问卷调查;对不育男性按照调查者主观认为病因分4个亚组:男方因素、双方因素、... 目的:研究主观不育事件对男性自尊心、自信心、性关系满意度及夫妻整体关系的影响。方法:采用自尊心和性关系问卷(SEAR)对不育和生育体检(对照组)的男性进行问卷调查;对不育男性按照调查者主观认为病因分4个亚组:男方因素、双方因素、不明原因和女方因素,比较各组SEAR得分。结果:①不育组中,平均年龄≥30岁组的SEAR总分为(71.77±17.42)分,<30岁组(72.74±18.38)分,差异无统计学意义(P>0.05);平均不育年限≥3年组总分为(68.66±17.19)分,<3年组为(75.50±17.05)分,差异有统计学意义(P<0.05);高中或以下学历组总分为(67.61±17.18)分,高中以上学历组为(81.42±13.99)分,差异有统计学意义(P<0.01)。②男方因素、双方因素、原因不明、女方因素亚组的SEAR总分分别为(65.69±18.68)、(68.52±17.68)、(74.85±15.19)、(83.21±12.61)分;其中,男方因素和双方因素两亚组与原因不明和女方因素亚组之间差异有统计学意义(P<0.05);原因不明亚组与女方因素亚组之间差异有统计学意义(P<0.05)。③体检组的性关系、自信、自尊、夫妻整体关系亚维度得分及总分分别为(88.40±10.74)、(92.23±9.41)、(91.95±10.67)、(90.38±14.14)、(90.04±9.85)分;去除不育年限和文化程度的影响后,其得分仍明显高于男方因素、双方因素及原因不明3个亚组,差异有统计学意义(P<0.05)。结论:主观不育事件会降低男性性关系满意度,使自尊心、自信心变差,夫妻整体关系恶化;且这种影响与个体文化程度及不育年限有关。 展开更多
关键词 性关系 自尊心和性关系问卷 男性不育
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摩梭走访制下的阿注关系:是亲属还是朋友? 被引量:5
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作者 肖二平 张积家 王娟 《心理学报》 CSSCI CSCD 北大核心 2015年第12期1486-1498,共13页
通过两个实验考察摩梭人和汉族人在性吸引和利他行为上对亲属、阿注/情侣、朋友和陌生人的情绪反应和行为倾向,以确定在摩梭走访制下阿注关系的性质。实验1要求被试分别想象与亲属、阿注/情侣、异性朋友和陌生人发生性关系,然后评定自... 通过两个实验考察摩梭人和汉族人在性吸引和利他行为上对亲属、阿注/情侣、朋友和陌生人的情绪反应和行为倾向,以确定在摩梭走访制下阿注关系的性质。实验1要求被试分别想象与亲属、阿注/情侣、异性朋友和陌生人发生性关系,然后评定自己的情绪,发现两个民族的乱伦禁忌存在着民族差异,汉族人对与亲属发生性关系的厌恶感强于摩梭人,对与阿注/情侣、朋友和陌生人发生性关系的厌恶情绪评定却不存在民族差异。被试在想象与特定对象发生性关系时激发的情绪存在着性别差异,女性比男性更多地激活了消极情绪(包括厌恶),抑制了积极情绪(包括浪漫),但这种性别差异却未在亲属关系上表现出来。实验2要求被试评定是否愿意帮助处于困境中的亲属、阿注/情侣、朋友和陌生人,发现摩梭人比汉族人更愿意帮助亲属、朋友和陌生人,但当对方是阿注/情侣时,汉族人比摩梭人更愿意做出利他行为。汉族人对亲属与情侣的利他行为评定的差异小,摩梭人对亲属与阿注的利他行为评定的差距大;摩梭人对阿注与朋友的利他行为评定的差距小,汉族人对情侣与朋友的利他行为评定的差距大。两个民族对阿注/情侣的利他行为存在着性别差异:汉族男性比汉族女性更愿意帮助情侣,摩梭女性比摩梭男性更愿意帮助阿注。总的来看,汉族人对待情侣更像对待亲属,摩梭人对待阿注更像对待朋友。这表明,阿注关系本质上是一种朋友关系,与主流民族的夫妻关系有着本质的不同。 展开更多
关键词 摩梭人 走访制 阿注关系 性吸引 利他行为
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非人灵长类性激素水平变化与性行为关系的研究进展 被引量:3
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作者 朱紫瑞 赵大鹏 +3 位作者 王程亮 郗文忠 王晓卫 李保国 《西北大学学报(自然科学版)》 CAS CSCD 北大核心 2008年第2期253-257,共5页
目的探究性激素与非人灵长类性行为的关系。方法文献比较与分析。结果性激素调节着大部分哺乳动物的交配能力,但是非人灵长类的交配能力并不完全受性激素的调控。对雄性进行睾酮抑制或去势会减少雄性的性冲动,但不能消除其交配能力。虽... 目的探究性激素与非人灵长类性行为的关系。方法文献比较与分析。结果性激素调节着大部分哺乳动物的交配能力,但是非人灵长类的交配能力并不完全受性激素的调控。对雄性进行睾酮抑制或去势会减少雄性的性冲动,但不能消除其交配能力。虽然大部分雌性的性行为同雌性激素水平显示有一致性,但在非繁殖季节仍然有交配行为发生。结论非人灵长类存在性激素和性行为不相关的现象,这种相脱离的状况在很大程度上是为了改善雌雄关系,保证生殖成功以及子代的成活率。 展开更多
关键词 非人灵长类 性行为 性激素 相关性
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满江红有性杂交研究及其鉴定 被引量:6
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作者 郑德英 唐龙飞 +1 位作者 章宁 陈坚 《作物学报》 CAS CSCD 北大核心 1994年第6期701-709,共9页
进行了69个不同组合的满江红有性杂交,有18个组合萌发出苗,其中三膘亚属内种间杂交占13个,三膘亚属与九瞟亚属间杂交占5个,而九膘亚属与三膘亚属间杂交和九膘亚属内种间杂交,均未取得成功。对杂交幼苗作脂酶同功酶分析,证实确系杂种后代... 进行了69个不同组合的满江红有性杂交,有18个组合萌发出苗,其中三膘亚属内种间杂交占13个,三膘亚属与九瞟亚属间杂交占5个,而九膘亚属与三膘亚属间杂交和九膘亚属内种间杂交,均未取得成功。对杂交幼苗作脂酶同功酶分析,证实确系杂种后代。 杂种满江红(重组细绿满江红)自交,绿苗率高。应用杂种满江红(重组细绿满江红、杂交榕萍)作父本,小叶满江红为母本,也取得较高的绿苗率,而以杂种满江红(重组细绿满江红)为母本,小叶满江红为父本,效果不好。这其间出现了部分或大部分的白化苗或黄绿苗,其机理和成因有待进一步探明。 应用杂交方法,可以提高满江红抗热能力。发现杂交苗的蕨藻发育存在3种情况,这为进一步研究萍藻共生关系在理论上和实践上都有一定意义。 展开更多
关键词 满江红 有性杂交 萍藻共生关系
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性关系的核心结构及其意义——非婚同居与婚姻的实证比较研究 被引量:17
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作者 张楠 潘绥铭 《学术界》 CSSCI 北大核心 2016年第6期52-61,325-326,共10页
近些年,非婚同居现象作为中国性关系的一种引起社会的关注。但国内关于非婚同居的研究都是基于理论思辨、定性分析和局部调查,没有代表全国总人口的统计分析。"中国人的性行为与性关系"的实地调查分别于2000年、2006年、2010... 近些年,非婚同居现象作为中国性关系的一种引起社会的关注。但国内关于非婚同居的研究都是基于理论思辨、定性分析和局部调查,没有代表全国总人口的统计分析。"中国人的性行为与性关系"的实地调查分别于2000年、2006年、2010年和2015年开展了四次全国抽样调查。本文将非婚同居分为"未婚同居""不婚同居""失婚同居""婚外同居"四种,一一指出其特征与人群分布。同时,对比分析了非婚同居与婚姻的差异,包括社会特征、双方关系和情感程度、性生活质量、非主流性行为等主要指标。以初级生活圈理论解释非婚同居这种性关系在社会中的核心结构及其意义。 展开更多
关键词 性关系 非婚同居 婚姻
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西双版纳傣族5项舌运动类型 被引量:2
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作者 包金萍 郑连斌 +4 位作者 宇克莉 李咏兰 宋雪 田金源 倪晓璐 《天津师范大学学报(自然科学版)》 CAS 2016年第1期62-66,共5页
在西双版纳傣族自治州民族中学调查了336例(男102例,女234例)中学生的卷舌、叠舌、翻舌、尖舌、三叶舌5项舌运动类型.结果表明:(1)傣族的卷舌率和尖舌率相对较高,分别为58.93%和55.95%,叠舌率、翻舌率和三叶舌率水平较低,分别为4.46%、1... 在西双版纳傣族自治州民族中学调查了336例(男102例,女234例)中学生的卷舌、叠舌、翻舌、尖舌、三叶舌5项舌运动类型.结果表明:(1)傣族的卷舌率和尖舌率相对较高,分别为58.93%和55.95%,叠舌率、翻舌率和三叶舌率水平较低,分别为4.46%、10.71%和3.57%,5项舌运动类型出现率性别间的差异无统计学意义(p>0.05);(2)与国内其他族群相比,西双版纳傣族5项舌运动类型的出现率均处于较低水平;(3)基于5项舌运动类型的聚类分析结果表明,西双版纳傣族与布依族的亲缘关系最近,具有南亚类型族群的特征;(4)翻舌与尖舌彼此相关,表明翻舌与尖舌间存在基因互作关系. 展开更多
关键词 傣族 舌运动类型 性别差异 聚类分析 亲缘关系
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四种寒带睡莲的杂交亲合性研究 被引量:3
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作者 牛红云 王臣 +1 位作者 薛贵彬 胡宝忠 《北方园艺》 CAS 北大核心 2011年第2期100-102,共3页
对寒带4种睡莲通过自交和杂交进行了杂交亲和性研究。结果表明:4种睡莲之间大花紫柱头睡莲与绿被睡莲杂交结果率高,正交与反交结果率差异不大,其它几个杂交处理正反交差异较大,从杂交亲和性上分析,认为绿被睡莲与大花紫柱头睡莲亲缘较近。
关键词 寒带睡莲 杂交亲和性 亲缘关系
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