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Kathleen Flanagan 《Housing Studies》2018,33(5):684-707
This article contributes to a chain of literature extending back to the late nineteenth century on the ‘problem family’, particularly when encountered by housing providers as the ‘problem’ tenant. Using archival evidence of the techniques employed by one social housing provider in the mid-1970s to identify a definitive solution to the challenges posed by ‘problem’ households, I trace the patterns and practices in ‘problem family’ discourse more broadly, and their intersection with those of other discursive fields, particularly eugenics and social work. I show how attempts to define, identify and design models of rehabilitation for ‘problem families’ can be understood as forms of a discursive strategy which Foucault identified as ‘commentary’, and argue that such commentary remains intrinsic to welfare state efforts to tackle entrenched disadvantage. 相似文献
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基于家族优生学的电力系统故障诊断 总被引:1,自引:1,他引:1
引入基于家族优生学的进化(FEBE)方法进行电力系统的故障诊断。该方法将正交设计技术引入家庭的子代培养过程,以加强个体的行为改进,避免早熟,加速了进化后期的收敛速度。此方法用于保护和断路器不正常动作或多重故障等复杂情况下的电力系统故障诊断也有满意的效果。算例系统的研究结果证明了FEBE方法的应用提高了电力系统故障诊断的效率和准确率。 相似文献
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基于家族优生学的配网重构 总被引:10,自引:4,他引:10
提出了用家族优生学(FEBE)的方法进行配网重构,该方法将正交设计技术引入家庭的子代培植过程中,以加强个体的行为改进,避免早熟,加快了进化后期的收敛速度,解决了大规模的配网重构收敛速度慢的问题。此外文中提出与配网结构特点相适应的编码方法,由联络开关所在的环确定基因组,以基因组中打开开关数量作为对子女的约束条件,修正不可行解,进一步提高计算效率。算例表明将FEBE用到配电网重构中,取得较好的效果。 相似文献
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In October 1913, The American Magazine published an article by Arnold Gesell that portrayed Alma, Wisconsin (his hometown) as overflowing with the mentally and morally unfit. In “The Village of a Thousand Souls,” Gesell called for the observation and segregation of the unfit as a eugenic measure. This article explores the reasons behind this infamous article by someone who became a famous developmental psychologist and pediatrician. Gesell's papers at the Library of Congress reveal his socialist views of poverty, injustice, and human development. The archives of his father's photography studio at the Wisconsin Historical Society reveal his manipulation of the photographic record to fit his negative view of Alma. Typical of the era, Gesell's Progressive vision combined social control and negative eugenics with egalitarianism and the benevolent engineering of the environment. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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由于热轧带钢卷取温度控制过程存在强非线性,经典数学模型难以精确描述,我们采用遗传神经网络建立了卷取温度预报模型,并且通过改进的遗传算法优化了神经网络的权值.其中,提出了重新进化的思想,用"返祖"操作找回丢失的较优模式并将其耦合至下一代种群中,极大的提高了算法的收敛速度;分析了"种群解的空间跨度"和"基因段距离"对种群多样性的影响,用"优生"操作来推动算法从平面到多维空间的立体式搜索,以勘探和挖掘出更广、更优的寻优区间,并在种群进化后期,强力驱动算法收敛于全局最优.MFC(微软基类库)仿真结果表明:该卷取温度预报模型的收敛速度快、精度高,满足实时在线的控制要求,预报精度在±10?范围之内,能为卷取温度的前馈补偿控制提供可靠的参考数据,从而为进一步提高卷取温度的控制精度提供了新的途径. 相似文献
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This article analyzes professional challenges to the 1915 commitment law and the ultimate demise of eugenic institutionalization in Illinois. It reveals the pivotal role of psychologists and intelligence testing in the debate over the necessity and viability of a state-sponsored system of eugenic commitment. It focuses primarily, but not exclusively, on a specific group of young female test subjects and the female professionals who attempted to measure their intelligence. The article relies on published studies as well as case records chosen at random from the Illinois State Training School for Girls at Geneva to explain and analyze the complex relationships among mental testing, feeblemindedness, and eugenics. Focusing on Geneva enables the author to highlight and evaluate previously underanalyzed social and environmental factors that affected testing as well as the experience of women in both eugenics and intelligence testing. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Maria Do Mar Gago 《Centaurus; international magazine of the history of science and medicine》2015,57(1):1-27
This article discusses the interaction between genetics and politics during the early phase of Salazar's regime. In particular it focuses on the work of the Portuguese biologist José A. Serra who investigated the genetics of hair pigmentation at the University of Coimbra. The first part of the article describes how Serra's research benefitted from the ideological and political context in Coimbra before and during WWII, and how his work on melanins was a clear response to a new project initiated at the German Kaiser Wilhelm Institut für Anthropologie. The second part shows how his expertise in the inheritance and composition of hair colour was required by the regime in the post‐war period, when wool became a priority of the corporatist State. The ‘things of darkness’ are melanins, dark biological pigments responsible for pigmentation in mammalian tissues, used in this historical investigation to connect Serra's rather obscure field of research to the political context of his time. 相似文献
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基于家族优生学的进化算法 总被引:36,自引:0,他引:36
模拟进化有几种典型方法,分别强调自然进化过程的不同侧面.人们已意识到恰当地结合这些方法将推进该领域的研究.本文将现有进化方法的差别归结为“遗传链”与“进化链”之间的差别,提出一种新的进化模型,称之为“基于家族优生学的进化FEBE(familyeugenicsbasedevolution)”.新的模型用家族优生学的思想将遗传链与进化链溶为一体,将正交设计技术引入家庭的子代培植以加强个体的行为改进.本文将FEBE模型用于求解困难的Goldberg欺骗问题,取得了满意的实验结果. 相似文献
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Anne Maxwell 《History of Photography》2013,37(2):184-198
In the early years of the twentieth century the Hawaiian-based American photographer Caroline Gurrey produced a much praised set of the photographs of Hawai‘i’s ‘mixed race’ children. Critics have noted that stylistically Gurrey's photographs belong to the pictorialist school and possibly even to the high art style of the Photo-Seccessionists, however research into her background and life, and the contexts in which these photographs were produced and consumed, suggests that if we want a fuller understanding of both Gurrey's intentions and these photographs' historical importance, we should also take note of the part they played in the burgeoning eugenics movement and indigenous Hawaiians' reactions to American imperialism. 相似文献
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