875 resultados para Political Science, General|Political Science, Public Administration|Sociology, Public and Social Welfare
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Mode of access: Internet.
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Includes bibliography.
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Mode of access: Internet.
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Mode of access: Internet.
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Serotonin (5-hydroxytryptamine, 5-HT) is an amine neurotransmitter derived from tryptophan and is important in brain systems regulating mood, emotional behavior, and sleep. Selective serotonin reuptake inhibitor (SSRI) drugs are used to treat disorders such as depression, stress, eating disorders, autism, and schizophrenia. It is thought that these drugs act to prolong the action of 5-HT by blocking reuptake. This may lead to decreased 5-HT content in the nerve fibers themselves; however, this has not previously been directly demonstrated. We have studied the effects of administration of two drugs, imipramine and citalopram, on levels of 5-HT in nerve fibers in the murine brain. Quantitative analysis of the areal density of 5-HT fibers throughout the brain was performed using ImageJ software. While a high density of fibers was observed in mid- and hind-brain regions and areas such as thalamus and hypothalamus, densities were far lower in areas such as cortex, where SSRIs might be thought to exert their actions. As anticipated, imipramine and citalopram produced a decline in 5-HT levels in nerve fibers, but the result was not uniform. Areas such as inferior colliculus showed significant reduction whereas little, if any, change was observed in the adjacent superior colliculus. The reason for, and significance of, this regionality is unclear. It has been proposed that serotonin effects in the brain might be linked to changes in glutamatergic transmission. Extracellular glutamate levels are regulated primarily by glial glutamate transporters. Qualitative evaluation of glutamate transporter immunolabeling in cortex of control and drug-treated mice revealed no discernable difference in intensity of glutamate transporter immunoreactivity. These data suggest that changes in intracellular and extracellular levels of serotonin do not cause concomitant changes in astroglial glutamate transporter expression, and thus cannot represent a mechanism for the delayed efficacy of antidepressants when administered clinically. © 2005 Elsevier B.V. All rights reserved.
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The purpose of this research was to assess the type and extent of sexual harassment of Miami-Dade County Public School (M-DCPS) students by school employees. In addition, the school system's existing procedures for handling such harassment were investigated, including students' awareness of and willingness to follow such procedures.^ Over 500 seniors from fourteen high schools around the county completed surveys which asked them to indicate whether or not they had received training on the topic of sexual harassment, whether or not they were aware of their school's policy on sexual harassment, whether or not they would feel comfortable reporting an incident of sexual harassment, whether or not they had experienced various forms of sexual harassment, and if they had been harassed, whether or not they reported the incident to a school official.^ Results indicated that sexual harassment of M-DCPS students by school employees is widespread, and the procedures that are currently in place to deal with this harassment are ineffective. Sixty-eight percent (68%) of the sample population indicated that a school employee had sexually harassed them; however, only four percent (4%) reported the incident to a school official. Responses indicated that this discrepancy exists because few students have received any training, few are aware of their schools' policies, and few are comfortable with the existing reporting procedures. ^
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The increasing similarity between the economic policies of center-left and center-right political parties has effectively diminished the legitimacy of governments in relationship to their citizenry in Western Europe and the U.S. Capitalist democracies during the period of managed capitalism gained legitimacy by the appearance of the separation of capitalist ownership rights in the marketplace from the political institutions that govern capitalism. During this period, Social Democratic parties in Western Europe, and to a lesser extent the Democratic Party in the U.S., paid some amount of attention to labor unions and mass constituents in formulating their policy agendas. The era of neoliberalism (late 1970s to the present) has broken any such appearances, with the dominant political parties, regardless of party label, moving rightward to embrace many of the same economic policy agendas.
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Abstract Complexity science and its methodological applications have increased in popularity in social science during the last two decades. One key concept within complexity science is that of self-organization. Self-organization is used to refer to the emergence of stable patterns through autonomous and self-reinforcing dynamics at the micro-level. In spite of its potential relevance for the study of social dynamics, the articulation and use of the concept of self-organization has been kept within the boundaries of complexity science and links to and from mainstream social science are scarce. These links can be difficult to establish, even for researchers working in social complexity with a background in social science, because of the theoretical and conceptual diversity and fragmentation in traditional social science. This article is meant to serve as a first step in the process of overcoming this lack of cross-fertilization between complexity and mainstream social science. A systematic review of the concept of self-organization and a critical discussion of similar notions in mainstream social science is presented, in an effort to help practitioners within subareas of complexity science to identify literature from traditional social science that could potentially inform their research.
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This paper presents the "state of the art" and some of the main issues discussed in relation to the topic of transnational migration and reproductive work in southern Europe. We start doing a genealogy of the complex theoretical development leading to the consolidation of the research program, linking consideration of gender with transnational migration and transformation of work and ways of survival, thus making the production aspects as reproductive, in a context of globalization. The analysis of the process of multiscale reconfiguration of social reproduction and care, with particular attention to its present global dimension is presented, pointing to the turning point of this line of research that would have taken place with the beginning of this century, with the rise notions such as "global care chains" (Hochschild, 2001), or "care drain" (Ehrenreich and Hochschild, 2013). Also, the role of this new agency, now composed in many cases women who migrate to other countries or continents, precisely to address these reproductive activities, is recognized. Finally, reference is made to some of the new conceptual and theoretical developments in this area.
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La articulación entre las políticas de empleo y las políticas sociales condicionan la percepción subjetiva de incertidumbre los individuos. El modelo de mercado laboral tiene un peso determinante en la percepción de incertidumbre. El empleo en sí mismo ya no es suficiente garantía de ingresos seguros. El empleo a tiempo parcial y los contratos temporales generan una creciente demanda de políticas de redistribución de los ingresos en los países del Sur y Este de Europa. En los países escandinavos los mismos tipos de contratos laborales generan menos desigualdad porque el empleo público contribuye a generar un “círculo virtuoso” que favorece las políticas de igualdad y la conciliación entre la vida laboral y familiar. A nivel individual las actitudes pro-redistributivas las impulsan las mujeres, aquellas personas con incertidumbre en sus ingresos económicos y con bajo nivel de estudios. Por el contrario, quienes más confían en el éxito individual y el mérito son los jóvenes con estudios universitarios y aquellos que perciben ingresos económicos altos.
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Thesis (Ph.D.)--University of Washington, 2016-08
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This thesis investigates how the processes and practices of reproduction have been transformed not only by the ascendant political rationality of neoliberalism but also by women’s struggles that have reconfigured motherhood, the domestic home and the gendered organisation of employment. Through exploring both the 1970s feminist demand for “free 24- hour nurseries” and the contemporary provision of extended, overnight and flexible childcare, care that is often referred to as “24-hour childcare”, the research contributes to feminist understandings of the gendered and racialised class dynamics inside and outside the home and the wage. The research repositions the ‘Woman Question’ as, yet again unavoidable and necessary for comprehending and intervening in the brutalising consequences of capitalist accumulation. Situated within the Marxist feminist tradition, the work of reproduction is understood as a cluster of tasks, affective relations and employment that have historically been constructed and experienced as ‘women’s work’. The interrelation between the subjectivity of motherhood and the political economy of reproduction is analysed through a feminist genealogy of 24-hour childcare in Britain. Using ethnographic encounters, archival research and interview data with mothers and childcare workers, the research tells a story about the women who have worked both inside and outside the home, raised children, cooked and cleaned, and who, both historically and in the present, continue to create an immense amount of wealth and value. As women's labour market participation has steadily increased over the last 40 years, the discourse of reproduction has shifted to one in which motherhood is increasingly constructed as a choice. Within neoliberal discourse the decision to have a child is constructed as a private matter for which individuals bear the costs and responsibility. The thesis argues that, as a result of motherhood being constructed more and more as something that is chosen, the spaces of resistance and opposition towards motherhood have been limited and resistance has been individuated and privatised.