reproductive services

生殖服务
  • 文章类型: Journal Article
    授粉和种子传播相互关系对于生物多样性和生态系统服务至关重要,但由于人为扰动而面临越来越大的威胁,导致其种群数量下降。当种群处于低密度时,表征这些相互作用的动力学对于预测这些扰动的后果很重要。我们开发了简单的种群动态模型,该模型足够详细,可以区分植物种群从动物授粉或种子传播中受益的不同机制。我们将益处建模为动物对植物奖励的觅食率的函数,并指定它们是否影响植物种子集,发芽,或招募期间的负密度依赖性。我们发现,授粉和种子传播的相互关系在高密度下是稳定的,但在低密度下表现出不同的动力学,根据植物的承载能力,动物觅食效率,以及人口是否对他们的伴侣有持久的义务。在一定条件下,所有的相互关系都经历了不稳定的门槛,在这个门槛中,一个人口因为其伴侣太罕见而下降。当植物对传粉者专一时,植物还会经历Allee效应。最后,当植物在授粉媒介上兼性时,授粉互体可以在低密度或高密度下表现出双稳态共存。我们模型的见解可以为保护工作提供信息,随着全球共同主义者的人口继续下降。
    AbstractPollination and seed dispersal mutualisms are critical for biodiversity and ecosystem services yet face mounting threats from anthropogenic perturbations that cause their populations to decline. Characterizing the dynamics of these mutualisms when populations are at low density is important to anticipate consequences of these perturbations. We developed simple population dynamic models detailed enough to distinguish different mechanisms by which plant populations benefit from animal pollination or seed dispersal. We modeled benefits as functions of foraging rate by animals on plant rewards and specified whether they affected plant seed set, germination, or negative density dependence during recruitment. We found that pollination and seed dispersal mutualisms are stable at high density but exhibit different dynamics at low density, depending on plant carrying capacity, animal foraging efficiency, and whether populations are obligate on their partners for persistence. Under certain conditions, all mutualisms experience destabilizing thresholds in which one population declines because its partner is too rare. Plants additionally experience Allee effects when obligate on pollinators. Finally, pollination mutualisms can exhibit bistable coexistence at low or high density when plants are facultative on pollinators. Insights from our models can inform conservation efforts, as mutualist populations continue to decline globally.
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  • 文章类型: Journal Article
    女同性恋母亲是中国女同性恋夫妇中一种新兴的习俗。尽管这种家庭形式可能会吸引那些不能合法与伴侣结婚的中国女同性恋者,由于中国当局和其他家庭成员缺乏认可,女同性恋母亲面临着巨大的风险和挑战。这项研究的重点是一位匿名女同性恋对她母亲身份的忏悔。它进行了案例分析,以调查跨国生殖服务与国家家庭法规和婚姻法之间的不相容性。这项研究分析了女同性恋家庭中父权制的持续存在,这抑制了女性的身体和家庭角色。通过这种分析,本文旨在探讨女同性恋母亲在缺乏法律和社会认可的情况下面临父权制剥削的连续过程中的脆弱性。这也质疑女同性恋母亲通常被认为对男性统治和性别规范构成的激进挑战。
    Lesbian motherhood is an emerging practice among Chinese lesbian couples. Although this form of family-making might be appealing to Chinese lesbians who cannot legally marry their partners, lesbian mothers are subject to substantial risks and challenges arising from the lack of recognition by Chinese authorities and other family members. This study focuses on an anonymous lesbian\'s confession about her motherhood. It conducts a case analysis to investigate the incompatibility between transnational reproductive services and national household regulations and Marriage Law. This study analyses the persistence of patriarchy in a lesbian family, which suppresses women\'s agency both corporeally and in family roles. Through this analysis, this paper intends to explore lesbian mothers\' vulnerabilities as they face a continuum of patriarchal exploitation in the absence of legal and social recognition. It also questions the radical challenge that lesbian motherhood is often assumed to make to male dominance and gendered norms.
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  • 文章类型: Journal Article
    背景:获得医疗保健的不平等导致社会群体之间的系统性健康差异。改善健康的干预措施并不总是考虑这些不平等。审查加纳和尼日利亚获得生殖保健服务的情况,探讨了这些国家妇女使用计划生育和孕产妇护理的模式。
    方法:我们分别使用了来自2014年和2013年加纳和尼日利亚人口健康调查的人口水平数据。我们应用了两步聚类分析,然后进行了多项逻辑回归分析。
    结果:与计划生育有关的初步两步聚类分析确定了加纳和尼日利亚的三个妇女群体:妇女高,获得计划生育服务的机会中等和贫困。随后与孕产妇护理相关的两步聚类分析确定了五个不同的聚类:较高,高,中等,加纳和尼日利亚获得孕产妇保健服务的机会很少。多元逻辑回归显示,与中等/高等教育的女性相比,在尼日利亚(OR=2.54,95%CI:1.90-3.39)和加纳(OR=1.257,95%CI:0.77-2.03),未受过教育的妇女获得计划生育服务的可能性较高.和白领相比,在尼日利亚,没有工作的女性获得孕产妇保健服务的可能性增加(OR=1.579,95%CI:1.081-2.307,p≤0.01).加纳没有观察到这种关联。在尼日利亚,家庭财富与获得计划生育服务和孕产妇保健服务密切相关。在加纳没有保险与获得计划生育服务的机会少有关,但尼日利亚的情况并非如此。在这两个国家,缺乏保险与无法获得孕产妇保健服务有关。
    结论:这些差异证实了对生殖健康服务采取针对具体情况的重点方法的重要性。特别是减少社会经济地位造成的获取不平等。干预措施应侧重于根据需求评估将服务和人口群体分为优先类别。这样,它们可以帮助扩大自下而上的优质服务的覆盖面,以改善这些弱势群体的获取。
    BACKGROUND: Inequalities in access to health care result in systematic health differences between social groups. Interventions to improve health do not always consider these inequalities. To examine access to reproductive health care services in Ghana and Nigeria, the patterns of use of family planning and maternal care by women in these countries are explored.
    METHODS: We used population-level data from the Ghana and Nigeria Demographic Health Surveys of 2014 and 2013 respectively. We applied a two-step cluster analysis followed by multinomial logistic regression analysis.
    RESULTS: The initial two-step cluster analyses related to family planning identified three clusters of women in Ghana and Nigeria: women with high, medium and poor access to family planning services. The subsequent two-step cluster analyses related to maternal care identified five distinct clusters: higher, high, medium, low and poor access to maternal health services in Ghana and Nigeria. Multinomial logistic regression showed that compared to women with secondary/higher education, women without education have higher odds of poor access to family planning services in Nigeria (OR = 2.54, 95% CI: 1.90-3.39) and in Ghana (OR = 1.257, 95% CI: 0.77-2.03). Compared to white-collar workers, women who are not working have increased odds of poor access to maternal health services in Nigeria (OR = 1.579, 95% CI: 1.081-2.307, p ≤ 0.01). This association is not observed for Ghana. Household wealth is strongly associated with access to family planning services and maternal health care services in Nigeria. Not having insurance in Ghana is associated with low access to family planning services, while this is not the case in Nigeria. In both countries, the absence of insurance is associated with poor access to maternal health services.
    CONCLUSIONS: These differences confirm the importance of a focused context-specific approach towards reproductive health services, particularly to reduce inequality in access resulting from socio-economic status. Interventions should be focused on the categorization of services and population groups into priority classes based on needs assessment. In this way, they can help expand coverage of quality services bottom up to improve access among these vulnerable groups.
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  • 文章类型: Journal Article
    动植物互助网络维持了陆地生物多样性和人类粮食安全。全球环境变化威胁着这些网络,强调了发展网络如何应对扰动的预测理论的紧迫性。这里,我综合了预测网络结构的理论进展,动力学,相互作用强度和对扰动的响应。我发现,结合了互惠互动的生物学机制的数学模型可以更好地预测网络动力学。这些机制包括特征匹配,适应性觅食,以及相互关系提供的资源和服务的动态消费和生产。结合物种性状的模型更好地预测网络的潜在结构(基本生态位),虽然理论基于物种丰度的动力学,奖励,觅食偏好和生殖服务可以预测极其动态的网络实现结构,并可以成功预测网络对扰动的响应。从理论家的角度来看,模型开发必须更真实地代表关于交互强度的经验数据,人口动态以及这些动态如何随着全球变化的扰动而变化。从经验主义者的立场来看,理论需要做出可以通过观察或实验检验的具体预测。使用短期经验数据开发模型可以使模型对社区动态进行长期预测。随着更多的长期数据可用,严格的模型预测测试将有所改善。
    Plant-animal mutualistic networks sustain terrestrial biodiversity and human food security. Global environmental changes threaten these networks, underscoring the urgency for developing a predictive theory on how networks respond to perturbations. Here, I synthesise theoretical advances towards predicting network structure, dynamics, interaction strengths and responses to perturbations. I find that mathematical models incorporating biological mechanisms of mutualistic interactions provide better predictions of network dynamics. Those mechanisms include trait matching, adaptive foraging, and the dynamic consumption and production of both resources and services provided by mutualisms. Models incorporating species traits better predict the potential structure of networks (fundamental niche), while theory based on the dynamics of species abundances, rewards, foraging preferences and reproductive services can predict the extremely dynamic realised structures of networks, and may successfully predict network responses to perturbations. From a theoretician\'s standpoint, model development must more realistically represent empirical data on interaction strengths, population dynamics and how these vary with perturbations from global change. From an empiricist\'s standpoint, theory needs to make specific predictions that can be tested by observation or experiments. Developing models using short-term empirical data allows models to make longer term predictions of community dynamics. As more longer term data become available, rigorous tests of model predictions will improve.
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  • 文章类型: Journal Article
    BACKGROUND: Equitable use of reproductive health care services is of critical importance since it may affect women\'s and children\'s health. Policies to reduce inequality in access to reproductive health care services are often general and frequently benefit the richer population. This is known as the inverse equity situation. We analyzed the magnitude and trends in wealth-related inequalities in the use of family planning, antenatal and delivery care services in Ghana and Nigeria. We also investigate horizontal inequalities in the determinants of reproductive health care service use over the years.
    METHODS: We use data from Ghana\'s (2003, 2008 and 2014) and Nigeria\'s (2003, 2008 and 2013) Demographic and Health Surveys. We use concentration curves and concentration indices to measure the magnitude of socioeconomic-related inequalities and horizontal inequality in the use of reproductive health care services.
    RESULTS: Exposure to family planning information via mass media, antenatal care at private facilities are more often used by women in wealthier households. Health worker\'s assistance during pregnancy outside a facility, antenatal care at government facilities, childbirth at home are more prevalent among women in poor households in both Ghana and Nigeria. Caesarean section is unequally spread to the disadvantage of women in poorer households in Ghana and Nigeria. In Nigeria, women in wealthier households have considerably more unmet needs for family planning than in Ghana. Country inequality was persistent over time and women in poorer households in Nigeria experienced changes that are more inequitable over the years.
    CONCLUSIONS: We observe horizontal inequalities among women who use reproductive health care. These inequalities did not reduce substantially over the years. The gains made in reducing inequality in use of reproductive health care services are short-lived and erode over time, usually before the poorest population group can benefit. To reduce inequality in reproductive health care use, interventions should not only be pro-poor oriented, but they should also be sustainable and user-centered.
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  • 文章类型: Journal Article
    Broadening your scope of practice to include theriogenology services offers a myriad of advantages. Theriogenology services are profitable, offer new revenue streams, and optimize the use of support staff and hospital. Offering reproductive services sets your practice apart from competitor practices. Breeder clients are demanding but loyal and return for repeat services; they also request and follow recommendations for \"high-end\" services. Your theriogenology clients often refer locally placed puppies and kittens to you for primary care and you gain new general practice clients. And it is fun!
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  • 文章类型: Journal Article
    Expansion of newborn screening programmes increases the complexity around reproductive choices, both in terms of the increased number of parents faced with making reproductive decisions from the earliest days of their affected child\'s life, and the number of conditions for which such decisions have to be made. We conducted a scoping review to explore: (i) reproductive decision-making among parents of children with recessive genetic conditions; and, (ii) the involvement of healthcare services in facilitating and supporting those decisions. Systematic search processes involved seven bibliographic databases, citation, and grey literature searches. From an initial total of 311 identified articles, seven met the inclusion criteria and were included in the review. The extracted data were organised around three themes: factors influencing reproductive decisions taken by parents, how those factors changed over time, and the involvement of healthcare services in supporting and facilitating reproductive decisions. Most studies focused on attitudes towards, and uptake of, pre-natal diagnosis (PND) and termination. None of the studies considered the wider range of reproductive choices facing all parents, including those of children with conditions for whom PND and termination is not available or where good health outcomes make these options less justifiable. The literature provided little insight into the role of healthcare staff in providing family planning support for these parents. There is a need to better understand the support parents need in their decision-making, and who is best placed to provide that support.
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