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1.
Bdelloid rotifers are mostly known for two peculiarities, continuous parthenogenetic reproduction and dormancy in response to habitat desiccation, a phenomenon named anhydrobiosis. These uncommon traits earned them the names of ‘evolutionary scandals’ and ‘sleeping beauties’, respectively. Relevant aspects of bdelloid biology have recently been described that connect parthenogenesis to anhydrobiosis and that might account for their evolutionary survival in spite of the conservative reproduction. In the present study, I explore recent literature, in the attempt to disentangle the apparent incongruency between the apomictic reproduction and the presumed long-term evolutionary survival of bdelloid species. Recent results remarkably improved our knowledge of bdelloid population biology, genetics, and molecular biology. The most relevant findings concern (i) acquisition of foreign genes through horizontal transfer, (ii) presence of divergent sequences possibly corresponding to ancient gene duplications and (iii) capacity to escape parasites: events that appear to be connected with dormancy. I also address the results of recent studies on the relationships between bdelloids and other rotifers, including acanthocephalans, in an attempt to highlight similarities and differences that should be clarified to better understand phylogenetic relationship among the Rotifera sensu lato. 相似文献
2.
Although anthropologists have paid little attention to popular American psychological discourse about addiction and recovery, the cultural politics of its engagement by Native North American communities warrant closer examination. By ethnographically contextualizing personal narratives, this paper describes how addiction/recovery discourse has been selectively engaged by younger generations of women in a northern Plains reservation community. Sobriety is not only a therapeutic transformation but also a socially negotiated identity change in this community and, therefore, engages ongoing local identity politics. Many community members evaluate the legitimacy of claims to Native identity by essentializing boundaries between Native and non-Native, as well as between past and present-a discursive convention that O'Nell has called "the rhetoric of the empty center" (Disciplined Hearts: History, Identity and Depression in an American Indian Community. Berkeley: University of California Press, 1996, p. 55). Yet by selectively appropriating elements of addiction/recovery discourse, younger women in the 1990s increasingly positioned emotional experience and expression as central arbiters of the legitimacy of Native identity. In so doing, they reconfigured the rhetoric of the empty center, eliciting both controversy and support from the larger community. This analysis highlights new dimensions of the social life of addiction/recovery discourse in contemporary Native North America, and calls for increased ethnographic attention to how localized cultural politics can orient the ways in which communities engage therapeutic discourses. 相似文献
3.
Passage of the DSHEA in 1994 created a new “liminal” category for the FDA: dietary supplements are regulated as neither food nor drugs. However, there appears to be a significant disconnect between the “official” discourse surrounding dietary supplements and supplement users’ actual practices. Despite this discrepancy, and the inadequacy of surveys to capture the dynamics of pharmaceutical practice, there is little ethnographic information available on the ways that Americans think about or use dietary supplements. We offer some preliminary observations from a pilot ethnographic study of Americans’ use of dietary supplements in which we consider not only the reasons why people are using supplements, but how they are using them, and how their experimentation has been influenced by the information they seek and receive from a variety of sources. We illustrate how anthropological studies of supplement related practice can help us better understand Americans’ attraction to and use of dietary supplements, and suggest that anthropology can contribute to a more balanced perspective on supplement use—one that moves the study of supplements beyond surveys and randomized controlled studies of efficacy to considerations of patterns of use in context, user expectations, and measures of perceived effectiveness. 相似文献
4.
The deinstitutionalization of psychiatric patients is a deeply cultural as well as political task. It entails the sharing of responsibility for human distress with family and community. Consequently, the locus of social control has also shifted from psychiatric and medical expertise to community and legal institutions. Diagnosis and treatment models must be more compatible with lay explanatory models. This paper explores the various meanings of going mental and being mental in the white, working class, ethnic neighborhood of South Boston. The data are extracted from a study of the impact of deinstitutionalization on a cohort of middle-aged, psychiatric patients discharged from Boston State Hospital in the attempt to return them to community living. Individual, family, and community responses to, and interpretations of, the symptoms of mental distress are discussed. The study indicates that even seriously disturbed individuals are sensitive to cultural meanings and social cues regarding the perception, expression, and content of psychiatric episodes. While madness invariably disenfranchises, it does not necessarily deculturate the individual. 相似文献
8.
In this paper, I look at several examples that demonstrate what I see as a troubling tendency in much of mainstream bioethics to discount the views of disabled people. Following feminist political theorists who argue in favour of a stance of humility and sensitive inclusion for people who have been marginalized, I recommend that bioethicists adopt a presumption in favour of believing rather than discounting the claims of disabled people. By taking their claims at face value and engaging with disabled people in open dialogue over impairment and disadvantage, bioethicists may take to heart an important lesson about human fragility and resilience. 相似文献
10.
PurposeTrust is an important aspect of interpersonal relationships, but little is known about adolescents’ interpersonal trust. The aim of the present study was to examine the associations among parental monitoring, parent-adolescent communication, and adolescents’ trust in their parents in China. MethodsData in this study were collected as part of the cross-sectional study of children in China. 3349 adolescents (female 48.6%, age range of 12–15 years) were randomly selected from 35 secondary schools in April, 2009 and administered to the Adolescent Interpersonal Trust Scale, the Parental Monitoring Scale, and the Parent-Adolescent Communication Scale. ResultsAdolescents’ trust in their parents was positively related to parental monitoring and parent-adolescent communication. Furthermore, parent-adolescent communication mediated the association between parental monitoring and adolescents’ trust in their parents. The mediation model fit data of both genders and three age groups equally well. ConclusionsParental monitoring and parent-adolescent communication play an importance role in fostering adolescents’ trust in their parents. 相似文献
11.
The actual evidence observed in studies of LEK (local environmental knowledge) is nearly always talk about the environment, or what we refer to as LET (local environmental talk), with the claim of studying LEK usually being
built upon the implicit assumption that talk about the environment is the expression of knowledge about the environment. We
suggest that it is critically important for researchers to question this assumption, especially when the distinction between
LET and LEK is also emphasized by local people themselves. In the case we present here, residents of small fishing villages
on the Northern Peninsula of Newfoundland are routinely skeptical about what other local residents say about the environment;
that is, they engage in LES (local environmental skepticism). We suggest that paying explicit attention to LES can help distinguish
LEK from LET. 相似文献
12.
In India, touch is a prime marker of status and social relations. Those who are impure are ‘untouchable’, 1 The terms ‘Untouchable’ and ‘Untouchability’ have been abandoned due to the humiliating meaning these terms confer, therefore I use them in inverted commas. The politically correct and common terms today are Scheduled Castes, in short sc, or Dalits, or sometimes Harijan. I use them here synonymously. but those who are of a relatively higher purity are also, depending on the context, either ‘untouchable’ or ‘touchable’ only under certain fixed rules. In this paper, I will explore the contexts in which body contact and touch can be part of personal relations. I describe how these body contacts signify important social relations and establish community identity. Further, I will analyse how patterns of body contact on the one hand change during childhood, and on the other hand produce changes in the status of a social persona. The last point to be investigated is the meaning of touch as a sign for public representations. 相似文献
13.
In Botswana there is a large, and increasing, number of women who do not marry but have one or several lovers simultaneously and have gifts from these menas an importantpart of their income. It is argued that the processual and practical character of traditional marriages, combined with weak social institutions, provides those who wish the basis on which to legitimise such informal sexual relationships. Such practices represent a new sexual morality, whose conditions are further explained by treating the term ‘prostitution’ in a comparative perspective. Tensions arise from the new constellation of sexual mores, generating fundamental social changes — most notably substantial economic transfers from men to women, loss of male power, and changing gendered identities. Lastly, the practices described are discussed in relation to the AIDS epidemic. 相似文献
14.
This article explores relationships between Englishness and racialization in order to consider the potential for English identities that are progressive in anti-essentialist or multicultural terms. The article draws on data from interviews in which people from a South London area talk about Englishness. I will examine how English identities are understood by participants who are white and participants who are not white. While white participants experience Englishness as a taken-for-granted identity, for participants who are not white English identities are a more calculated, precarious performance. I will then examine discussions of ‘who can be English’. While most participants argue that ‘anyone can be English’ in principle, this is not necessarily the case in practice. It will be suggested that talk of Englishness is particularly constrained by relationships between Englishness, whiteness and ancestry, but that for those who experience Englishness as precarious there are signs that this is not necessarily the case. 相似文献
15.
Kenyan long-distance runners have for decades famously dominated international athletic competitions. Most of the aspiring runners live and train in the highlands of northwest Kenya, in Elgeyo Marakwet County, where they have access to competitive peer groups of budding athletes and an elaborate infrastructure of camps, coaches, and managers. The most promising and successful ones travel abroad to take part in international races, only to quickly return and continue training in the ‘county of champions’. Meanwhile, Kenya is undergoing a rapid transformation, envisioned by the government's development plan, which promises to transform it into a ‘globally competitive and prosperous country’. On the surface, competition is a self-explanatory notion that drives the transnational sports industry and the state's development plan. However, ethnography of the county's capital, Iten, and its community of athletes reveals tensions: Kenyans take up, negotiate, appropriate, and challenge meanings of competition offered by the state and the sports industry on ecological, gendered, and moral grounds. Ethnography of ideologies of competition in Iten, conceptualized as moral, aesthetic, and gendered projects, complicates accounts of competition as a tool for global neoliberal governance. It also provides an alternative to analyses of African subjects’ agency in global circulation of capital, people, and ideas, namely analyses subsumed under signs of marginality, dependence, and subjection. 相似文献
17.
Migration studies have so far largely failed to include transnational adoption and left the study of this phenomenon to other disciplines, such as kinship and family studies. This article aims at bridging this disciplinary divide. By looking through the lens of transnational adoption, it explores the ideological values that bolster the discourse on immigrants. Furthermore, it investigates how the migratory movement of adoptees is being negotiated in the intimate realm of the family and how the conceptualization of adoptees as immigrants/non-immigrants can be empowering or rather constraining. By doing so, the article aims both to further our understanding and theorization of the experiences and dynamics of transnational adoption and advance our insight in questions of migration and belonging in society more generally. 相似文献
18.
Drawing from an evening of fieldwork at an eastern German Protestant churchin the rapidly deindustrialized city of Leipzig, this article finalyzes a discussion among church leaders, former ‘dissidents,’ and unemployed workers on the subject of ‘community economy’ (Gemeinschaftsökonomie), a concept people interpret to represent a potential solution to the crisis of mass unemployment. Such local debates on unemployment offer a frame for understanding the re-negotiation of labor and social welfare in eastern Germany following socialism's end. finalyzing this discussion within the context of theoretical debates on ‘civil society,’ I follow Burawoy's and Gramsci's lead in fillustrating that the imagined economic sphere of ‘community economy’ is an ideological battle ground, where hegemonic discourse supporting economic neoliberalism may be either reinforced or subverted. 相似文献
19.
This paper is concerned with a Filipino psychic surgeon confronted by a particularly challenging case of a kind perhaps unprecedented in his practice. The paper describes and analyzes how the practitioner modified his usual clinical performance and adapted his actions to demands of an extremely difficult situation. The case is viewed in wider perspective relative to the significance of performative acts of healing in a pluralistic medical setting. 相似文献
20.
Valorization of knowledge has been defined as a major challenge in the context of genomics as an emerging strategic research field. Valorization is a Dutch science-policy concept for what is elsewhere called science impact or the third mission of universities. This article describes the institutionalization of valorization policy in the Dutch genomics research system as a specific manifestation of a changing social contract between science and society, which mainly targets economic value creation and the stimulation of entrepreneurship. A societal debate has emerged in which this focus on economic aspects has been strongly criticized as one-sided. In response, policy-makers are willing to adopt a broader definition of valorization. On the basis of an analysis of valorization policies and practices in Dutch medical genomics, this article draws attention to two myths in this valorization debate. 相似文献
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