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811.
Derek S. Young Glenn F. Johnson Mosuk Chow James L. Rosenberger 《The American statistician》2015,69(3):213-220
Numerous professional fields have an increasing need for individuals trained in statistics and other quantitative analysis techniques. Today there exists great potential to fulfill this need by providing opportunities through online learning. However, to provide a high-quality education for returning adult professionals seeking advanced degrees in applied statistics online, many challenges need to be overcome. Based on our experience developing Penn State University’s online program in applied statistics, we discuss the evolution of the program’s curriculum, recruitment and development of online faculty, and meeting the requirements of students as important areas that require consideration in the development of an online program. We also highlight program evaluation strategies employed to ensure innovation and improvement in online education as cornerstones to a program’s success. 相似文献
812.
G. Chastaing F. Gamboa C. Prieur 《Journal of Statistical Computation and Simulation》2015,85(7):1306-1333
The hierarchically orthogonal functional decomposition of any measurable function η of a random vector X=(X1,?…?, Xp) consists in decomposing η(X) into a sum of increasing dimension functions depending only on a subvector of X. Even when X1,?…?, Xp are assumed to be dependent, this decomposition is unique if the components are hierarchically orthogonal. That is, two of the components are orthogonal whenever all the variables involved in one of the summands are a subset of the variables involved in the other. Setting Y=η(X), this decomposition leads to the definition of generalized sensitivity indices able to quantify the uncertainty of Y due to each dependent input in X [Chastaing G, Gamboa F, Prieur C. Generalized Hoeffding–Sobol decomposition for dependent variables – application to sensitivity analysis. Electron J Statist. 2012;6:2420–2448]. In this paper, a numerical method is developed to identify the component functions of the decomposition using the hierarchical orthogonality property. Furthermore, the asymptotic properties of the components estimation is studied, as well as the numerical estimation of the generalized sensitivity indices of a toy model. Lastly, the method is applied to a model arising from a real-world problem. 相似文献
813.
The problem of variable selection is considered in high-dimensional partial linear regression under some model allowing for possibly functional variable. The procedure studied is that of nonconcave-penalized least squares. It is shown the existence of a √n/sn-consistent estimator for the vector of pn linear parameters in the model, even when pn tends to ∞ as the sample size n increases (sn denotes the number of influential variables). An oracle property is also obtained for the variable selection method, and the nonparametric rate of convergence is stated for the estimator of the nonlinear functional component of the model. Finally, a simulation study illustrates the finite sample size performance of our procedure. 相似文献
814.
Douglas F. Cannon 《Journal of Public Relations Research》2015,27(3):280-296
ABSTRACTThis article argues that Religion Communicators Council members have historically avoided identification with public relations—especially practices associated with Edward Bernays. Council members appear to consider Bernays’ research-based approach evil and manipulative. Instead, religion communicators follow in Ivy Lee's footsteps. The one-time journalist promised to provide honest, accurate news about his clients, not advertising. Comments in council documents have shown that since 1929 members describe themselves more as technicians and in-house journalists who provide news about their organizations than as management-level public relations counsels. These comments reflect Lee's 1905 Declaration of Principles and a public-information approach to public relations. 相似文献
815.
Molly Tovar David A. Patterson Silver Wolf Julia Stevenson 《Journal of social work in disability & rehabilitation》2015,14(3-4):163-175
American Indians and Alaska Natives (AI/AN) have a long tradition of military service, allying with Western forces in North America since the 1700s. It is hardly surprising, therefore, that AI/AN veterans experience higher rates of overall disability and service-related disability than veterans of other races and ethnicities. It is not clear, however, that AI/AN veterans with disabilities are receiving effective, culturally informed rehabilitation services. This article examines the incidence of disability among contemporary AI/AN veterans, considers barriers to effective treatment, and points out model programs tailored to the particular needs of this population, with attention to the historical and cultural context of AI/AN military service. 相似文献
816.
Fernandez Kandyce Robichau Robbie Waters Alexander Jennifer K. Mackenzie William I. Scherer Robert F. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2022,33(5):1051-1063
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This research addresses the question of how the institutional frame of “nonprofitness” shapes the civic... 相似文献
817.
Social Indicators Research - Using tax data from the Swiss canton of Lucerne, we study how measures of economic inequality change if they account for income and wealth rather than income alone.... 相似文献
818.
Inside stories: Maternal representations of first time mothers from pre-pregnancy to early pregnancy
Julia Hopkins David Clarke Wendy Cross 《Women and birth : journal of the Australian College of Midwives》2014,27(1):26-30
BackgroundAccording to the psychoanalytical literature, it is during pregnancy that maternal representations of the mother–infant relationship become activated. Midwives who are engaged with the mother and the baby have not drawn upon this concept in their practice. In order for this to happen, it is important to understand better the nature of maternal representations and when they are activated from empirical studies.QuestionThe research question is: what are the maternal representations of a group of first time mothers from pre-pregnancy, early pregnancy and to the first ultrasound.MethodA narrative approach was used to gain insight into the maternal representations of first time pregnant womens’ account of their representations. The analysis method was based on thematic approach.ParticipantsFifteen women aged between 23 and 38 years.SettingA midwives clinic attached to a tertiary hospital in Melbourne, Australia.FindingsFirst-time pregnant women's maternal representations were activated when a woman begins to plan her pregnancy (‘the time is right’), again at the onset of physical changes to her body as a result of conception (‘my body is changing’), and at the first early ultrasound at around twelve weeks (‘it’ is a real baby).ConclusionMaternal representations are important for the midwife and pregnant women because this concept provides another understanding in relation to the psychological dimension of pregnancy. 相似文献
819.
Joshua G. Rosenberger Vanessa Schick Phillip Schnarrs David S. Novak Michael Reece 《Journal of homosexuality》2014,61(8):1192-1207
Limited research has focused on the sexual behaviors of men who have sex with men (MSM) from rural communities. We examined the sexual and health-related behaviors of MSM living in rural areas of the United States in order to understand the sexual health repertoire of this population. A total of 5,357 participants living in rural settings were recruited online and completed an anonymous Internet-based survey that assessed sexual behaviors, condom use, and men’s engagement with various community activities and events. These data provide a greater understanding of sexual health profiles that exist among rural MSM and will help inform the design of effective programs for men in these often underserved communities. 相似文献
820.
Harrell W. Chesson Jami S. Leichliter Gregory D. Zimet Susan L. Rosenthal David I. Bernstein Kenneth H. Fife 《Journal of Risk and Uncertainty》2006,32(3):217-230
This article examines the relationship between personal discount rates and sexual behaviors in a sample of teenagers and young
adults. We find that higher discount rates (an indication of less willingness to forego current consumption for future consumption)
are significantly associated with a range of sexual behaviors, including ever having sex, having sex before age 16 years,
and past or current pregnancy. These associations are consistent with previous studies showing a link between discounting
and other, non-sexual health behaviors.
JEL Classification D80 · D90 · I10 相似文献