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1.
In this paper, we consider a statistical estimation problem known as atomic deconvolution. Introduced in reliability, this model has a direct application when considering biological data produced by flow cytometers. From a statistical point of view, we aim at inferring the percentage of cells expressing the selected molecule and the probability distribution function associated with its fluorescence emission. We propose here an adaptive estimation procedure based on a previous deconvolution procedure introduced by Es, Gugushvili, and Spreij [(2008), ‘Deconvolution for an atomic distribution’, Electronic Journal of Statistics, 2, 265–297] and Gugushvili, Es, and Spreij [(2011), ‘Deconvolution for an atomic distribution: rates of convergence’, Journal of Nonparametric Statistics, 23, 1003–1029]. For both estimating the mixing parameter and the mixing density automatically, we use the Lepskii method based on the optimal choice of a bandwidth using a bias-variance decomposition. We then derive some convergence rates that are shown to be minimax optimal (up to some log terms) in Sobolev classes. Finally, we apply our algorithm on the simulated and real biological data. 相似文献
2.
AbstractParent-carers need support to continue to care for their child with significant disability in their home. There has, however, been little evidence that respite interventions have consistent or enduring beneficial effects on carer well-being. This article reports the findings of a qualitative study which adopted an Appreciative Inquiry philosophy to interview parent-carers of children with significant intellectual and/or developmental disabilities on how formal support services have helped them maintain their health and well-being, and disability support staff on how they help such parent-carers foster their health and well-being. We conclude that better communication and collaboration between service providers and users, more targeted training of workers, and embracing a person-centred and family-centred approach to respite services are needed. In addition, clearer definition and communication of the scope of respite services are required to best support families of children with significant disability in their home. 相似文献
3.
Rossetti J Jones-Bendel T Portell P Kunz M Sobotka MJ King C Marek K 《Journal of psychosocial nursing and mental health services》2012,50(5):42-46
In the behavioral health environment, nurses often use continuous staff monitoring and, at times, physical restraints, to manage the severity of patients' self-injury. Both options put staff in control, are the most restrictive in nature, and can be financially draining on the hospital's budget. This can result in negative reactions by both patients and staff. It is important to develop a program that will empower patients to control their behavior and allow staff to be aware of their perceptions and attitudes toward patients who self-injure. This article describes the leadership initiative that drove the development, training, and implementation of a self-injury prevention project and the lessons learned by staff. 相似文献
4.
Jane Warland Pauline Glover 《Women and birth : journal of the Australian College of Midwives》2017,30(1):23-28
Problem
Information that women receive about the importance of monitoring fetal movements and what to do if there are changes is inconsistent and may not be evidence based.Background
This paper reports a summary of the kind of messages a group of South Australian midwives (n = 72) currently give pregnant women.Methods
Comment data from two questions in a larger survey asking (1) what information midwives routinely provide to women about fetal movements and (2) their practice regarding advice they give to women reporting reduced fetal movements. Data were analysed using summative content analysis.Findings
Four main recurring words and phrases were identified. With respect to information midwives give all women about monitoring fetal movements, recurring words were “10”, “normal”, “kick charts” and “when to contact” their care-provider. Recurrent words and phrases arising from answers to the second question about advice midwives give to women reporting reduced fetal movement were “ask questions,” “suggest fluids,” “monitor at home and call back” or “come in for assessment”.Discussion
These findings suggest that a group of South Australian midwives are providing pregnant women with inconsistent information, often in conflict with best practice evidence.Conclusion
As giving correct, evidence based information about what to do in the event of an episode of reduced fetal movement may be a matter of life or death for the unborn baby it is important that midwives use existing guidelines in order to deliver consistent information which is based on current evidence to women in their care. 相似文献5.
6.
Pauline W. Jansen Cathelijne L. Mieloo Anke Dommisse-van Berkel Marina Verlinden Jan van der Ende Gonneke Stevens Frank C. Verhulst Wilma Jansen Henning Tiemeier 《Race and social problems》2016,8(4):271-280
School-aged children with an ethnic minority background are relatively often involved in bullying and victimization, but the role of ethnic composition of schools in this context remains unclear. This study examined the relation between ethnic minority background, ethnic school composition, and bullying behaviour around primary school entry in the Netherlands. The study was based on a 2008/2009 school survey in Rotterdam, a Dutch city where about 50 % of children have a non-Dutch background. For 8523 children, teacher reports of bullying behaviour at age 5–6 years were available. Children with a non-Dutch background had higher odds of being a victim (adjusted OR 1.41, 95 % CI 1.11, 1.80), bully (OR 1.38, 95 % CI 1.20, 1.58) or bully-victim (OR 1.38, 95 % CI 1.19, 1.62) than children of Dutch national origin. Ethnic diversity in schools increased children’s risk of bullying behaviour (e.g. ORvictim per 0.1 increase in 0–1 diversity range = 1.06, 95 % CI 1.00, 1.13), with children of both Dutch and non-Dutch national origin relatively more often involved in bullying in ethnically diverse schools. The proportion of same-ethnic peers in school reduced the risk of bullying among children of Dutch national origin (e.g. ORvictim per 10 % more same-ethnic children = 0.90, 95 % CI 0.83, 0.98), but not among non-Dutch children. In conclusion, ethnic minority background and ethnic diversity within schools are risk factors for bullying among 5–6 year olds. Plausibly, reductions in absolute numbers of bullying events may be obtained with tailor-made interventions in ethnically diverse schools. Such interventions should preferably be offered early in the school curriculum. 相似文献
7.
8.
Ruthann Weaver Lariscy Elizabeth Johnson Avery Kaye D. Sweetser Pauline Howes 《Public Relations Review》2009,35(3):314-316
Using telephone surveys of business/financial journalists in the United States (n = 200), this research investigates the agenda-building role of social media content in journalists’ work. Understanding that more non-public relations content from user-generated and social network sites, like YouTube and Twitter, are fast becoming resources for journalists to get story ideas, break scandals, and find sources, we began this scholarly work to determine the frequency of such uses of social media. Overall, findings indicate very little use of social media by these business journalists. Results and implications for public relations practitioners are discussed in detail. 相似文献
9.
Typologies of intimate partner violence (IPV) can inform practice and aid with the development of interventions. To maintain utility, typologies should be constantly reviewed in light of emerging results generated from internal and external validation. The presented study is an empirical exploration of the M. P. Johnson (2008) typology of IPV using data gathered from the New Zealand replication of the World Health Organization Violence Against Women survey. We could not identify all types of IPV described by Johnson, and we suggest that mutually exclusive types of violent relationships do not exist. Further exploration of the validity of the Johnson typologies, including an exploration of the utility of categorization for suggesting appropriate responses to IPV, is required. 相似文献
10.