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The mean density of bacteria in a water body is commonly monitored using quantal assay. This paper describes the use of local scoring in estimating the spatial distribution of mean density from quantal assay results at a set of point locations. An application to estimating the mean density of fecal conform bacteria in a coastal pond is presented. Model diagnostics based on a parametric bootstrap are also presented. 相似文献
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Lola A. Halpin Laura Akerman Susan Gue Susan Pinckard Jeannie Downey Richard Gess Chris Palazzolo Sue Trowbridge Joan Moffson Marian Kelley Kelly A. Smith Deberah England Shannon Astolfi Kristin Martin Kurt Blythe 《Serials Review》2008,34(3):214-227
In the span of four weeks, from late March to early April 2008, three important technical services conferences were held: the Electronic Resources & Libraries Conference, the New England Technical Services Librarians Conference, and the North Carolina Serials Conference. 相似文献
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Of the 39 states that permit some form of public sector collective bargaining, union security agreements are prohibited in
19. Employees may join and pay dues to the union representing them in these states but they are not required to do so. This
study of 372 state government workers compares union dues-payers and non-dues-payers on a variety of personal, positional,
economic, and noneconomic variables. Workers who were exposed to more physical danger and less noise were more likely to be
dues-payers; higher seniority workers and skilled craftworkers were more likely to pay dues. Results suggest that union voting
and union dues-paying have different antecedents. They also raise questions about the generalizability of previous dues-paying
research to blue-collar settings. Holding a union card in a right-to-work environment seems to have little to do with the
traditional collective pursuit of economic power. 相似文献
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Wang Julia Shu-Huah Malaeb Bilal Ssewamala Fred M. Neilands Torsten B. Brooks-Gunn Jeannie 《Social indicators research》2021,158(3):947-990
Social Indicators Research - Using a randomized controlled trial design, we examine the effects of savings incentives (match rate 1:1 versus 1:2) with mentorship and financial trainings on child... 相似文献
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Recent reports linking maternal prenatal drug use to SIDS in offspring raise six specific issues related to professional intervention: (1) blaming addicted parents compounds the normal guilt experienced after SIDS; (2) low self-esteem often underlies drug usage; (3) punitive intervention by child protective agencies may lead to parental mistrust of health professionals, reducing access to help; (4) society's increasing tendency to criminalize drug use during pregnancy may expose women to prosecution if a SIDS death occurs; (5) the debate over monitoring at risk infants is further complicated if caretakers use drugs; and (6) recent articles have suggested that the majority of SIDS deaths may be the result of homicide, neglect, environmental hazards, etc. For addicted parents, a SIDS death increases the risk of social fragmentation and poses challenges to professional interventions.The destructive effects of the Sudden Infant Death Syndrome go far beyond the lost lives of infants. The psychiatric morbidity among surviving family members can be severe and prolonged. Professional counseling seems vital in the prevention and treatment of a disabling guilt that follows the death of a child. (Bergman et al., 1969) 相似文献
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Fishing plays an important role in people's lives and contaminant levels in fish are a public health concern. Many states have issued consumption advisories; South Carolina and Georgia have issued them for the Savannah River based on mercury and radionuclide levels. This study examined ethnic differences in risk from mercury exposure among people consuming fish from the Savannah River, based on site-specific consumption patterns and analysis of mercury in fish. Among fish, there were significant interspecies differences in mercury levels, and there were ethnic differences in consumption patterns. Two methods of examining risk are presented: (1) Hazard Index (HI), and (2) estimates of how much and how often people of different body mass can consume different species of fish. Blacks consumed more fish and had higher HIs than Whites. Even at the median consumption, the HI for Blacks exceeded 1.0 for bass and bowfin, and, at the 75th percentile of consumption, the HI exceeded 1.0 for almost all species. At the White male median consumption, noHI exceeded 1, but for the 95th percentile consumer, the HI exceeded 1.0 almost regardless of which species were eaten. Although females consumed about two thirds the quantity of males, HIs exceeded 1 for most Black females and for White females at or above the 75th percentile of consumption. Thus, close to half of the Black fishermen were eating enough Savannah River fish to exceed HI = 1. Caution must be used in evaluating an HI because the RfDs were developed to protect the most vulnerable individuals. The percentage of each fish species tested that exceeded the maximum permitted limits of mercury in fish was also examined. Over 80% of bowfin, 38% of bass, and 21% of pickerel sampled exceeded 0.5 ppm. The risk methodology is applicable anywhere that comparable data can be obtained. The risk estimates are representative for fishermen along the Savannah River, and are not necessarily for the general populations. 相似文献
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The Cultural Functions and Social Potential of Queer Monuments: A Preliminary Inventory and Analysis
Public monuments function as cultural agents, reifying dominant public narratives or fostering change. Either way, their representation of people and events intervene in public discourse and contribute to cultural, economic, political, and social environments. Queer monuments, defined here as heritage sites that honor gender and sexual minorities, represent communities that have often been excised in dominant public narratives. This article provides a preliminary global inventory of queer monuments and describes three of their major functions: (1) to provide visibility and reduce stigma; (2) to educate the public on the abuse and attempted extermination of gender and sexual minorities; and (3) to stimulate public debate and discourse about gender and sexual minority rights. This still rare type of monument is growing more common and prompting more active and equitable representations in public space. Queer monuments have the potential of lessening stigma and improving the lives of sexual and gender minorities. 相似文献
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Gaines SO Henderson MC Kim M Gilstrap S Yi J Rusbult CE Hardin DP Gaertner L 《Journal of homosexuality》2005,50(1):97-117
In the present study, we examined the impact of cultural value orientations (i.e., the personally oriented value of individualism, and the socially oriented values of collectivism, familism, romanticism, and spiritualism) on accommodation (i.e., voice and loyalty, rather than exit and neglect, responses to partners' anger or criticism) in heterosexual and gay relationships; and we examined the impact of internalized homophobia (i.e., attitudes toward self, other, and disclosure) on accommodation specifically in gay relationships. A total of 262 heterosexuals (102 men and 162 women) and 857 gays (474 men and 383 women) participated in the present study. Consistent with hypotheses, among heterosexuals and gays, socially oriented values were significantly and positively related to accommodation (whereas the personally oriented value of individualism was unrelated to accommodation); and among gays in particular, internalized homophobia was significantly and negatively related to accommodation. Implications for the study of heterosexual and gay relationships are discussed. 相似文献