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51.
Although they have increased exponentially since the 1960s, social scientists know little about ethnic advocacy organizations. These nonprofits are important bridges between underresourced communities and mainstream funding organizations and their directors are established ethnic leaders. Sociologists study interlocking directorates—or shared board membership—to understand how organizations fit together within broader social networks. Network concepts, particularly the theory of institutional isomorphism, suggest that organizations are likely to be similar to the extent they are connected and operate within a common organizational field. We apply this logic to Latino advocacy organizations to examine the underlying source of cohesion across this ethnic field. We ask whether the organizations are tied by interlocking directorates of ethnic elites who sit on their boards of directors or if board members' common affiliation with other elite institutions creates the structural conditions that facilitate potential ideological or behavioral similarity. A social network analysis of five prominent Latino advocacy organizations reveals support for both hypotheses: Latino board members are both embedded in ethnic‐based networks and entrenched within elite organizational webs. This suggests that ethnic elites who sit on the boards of Latino advocacy organizations are also corporate elites, selected for the social capital they bring to these nonprofits. 相似文献
52.
Urban Ecosystems - Private residential property occupies a major part of the urban land base, yet considerable potential remains for improving the ecological performance of private gardens and... 相似文献
53.
This article introduces a new model of trend inflation. In contrast to many earlier approaches, which allow for trend inflation to evolve according to a random walk, ours is a bounded model which ensures that trend inflation is constrained to lie in an interval. The bounds of this interval can either be fixed or estimated from the data. Our model also allows for a time-varying degree of persistence in the transitory component of inflation. In an empirical exercise with CPI inflation, we find the model to work well, yielding more sensible measures of trend inflation and forecasting better than popular alternatives such as the unobserved components stochastic volatility model. This article has supplementary materials online. 相似文献
54.
Polynomial spline regression models of low degree have proved useful in modeling responses from designed experiments in science and engineering when simple polynomial models are inadequate. Where there is uncertainty in the number and location of the knots, or breakpoints, of the spline, then designs that minimize the systematic errors resulting from model misspecification may be appropriate. This paper gives a method for constructing such all‐bias designs for a single variable spline when the distinct knots in the assumed and true models come from some specified set. A class of designs is defined in terms of the inter‐knot intervals and sufficient conditions are obtained for a design within this class to be all‐bias under linear, quadratic and cubic spline models. An example of the construction of all‐bias designs is given. 相似文献
55.
The inclusion of technology in the classroom is an increasingly important feature of effective instruction. The implementation of Common Core Standards in many states also requires teachers to consider new pedagogical strategies to support meaningful learning. This article explores the intersection between technology demands and curricular change by examining apps that can be used to support Common Core State Standards instruction in history/social studies. Specifically, the authors highlight several apps that they presented at a professional development workshop for six to twelve history/social studies teachers and discuss the teachers' feedback regarding the strengths and limitations of apps to support their instruction. Conclusions are drawn and recommendations for history/social studies teachers using apps in the classroom are provided. 相似文献
56.
A spectrum of human development has been observed which has application in international development project planning, design, and implementation. Based on experience with privately funded development projects in Latin America, Asia, and Africa, seven components or sub-spectra of the human development spectrum which are vital to effective development projects are identified: need, resources, technology, social conscience, integrity, attitude, and problem solving. Their implications for the development process are explained, and indicators for each sub-spectrum are described. 相似文献
57.
Joshua Nosa Okundaye 《Child and Adolescent Social Work Journal》2004,21(3):285-302
This article examines how African American youths (ages 12–17) who are raised in neighborhoods that are centers for illegal drug trade and drug dealing (trafficking, running) cope with violent events such as shooting, stabbings and other intentional injuries. Using qualitative research methods, the study explores urban youths' perceptions of drug trafficking and related activities in their neighborhoods. The study then explores issues of personal encounters with traumatic events related to drug trafficking activities (shootings, stabbings, deaths, other violence) in their community. Finally, the study discusses implications of findings for risk and treatment of post-traumatic stress disorders (PTSD) among these youths. 相似文献
58.
Nicola J. Woods 《Journal of Sociolinguistics》1997,1(1):95-125
This research assesses the relative roles played by men and women in the development of New Zealand English. Real-time evidence on the development of NZ English over the past fifty years is provided by comparison of speakers recorded in 1948 and their present day descendants recorded recently. Elements of two vowel shifts are studied, and particular attention is paid to the vowel variables in words such as MOUTH, TRAP and DRESS. Results indicate that women lead in changes which are new and dynamic, but lag behind men in the use of variables representing older changes. While these results mirror patterns of gender-related variation observed in other contexts, explanations in terms of prestige which are often assumed to account for this pattern of variation are found to be inadequate in the New Zealand case. Rather, a hypothesis in terms of dialect contact, and specifically women's preferred discourse strategies in contact situations, is used to explain the process and progress of linguistic change in NZ English. 相似文献
59.
Who is a Distracted Driver? Associations between Mobile Phone Use while Driving,Domain‐Specific Risk Taking,and Personality 下载免费PDF全文
Madison Sween Andrea Ceschi Francesco Tommasi Riccardo Sartori Joshua Weller 《Risk analysis》2017,37(11):2119-2131
Mobile phone use while driving (MPUWD) is an increasingly common form of distracted driving. Given its widespread prevalence, it is important for researchers to identify factors that may predict who is more likely to engage in this risky behavior. The current study investigates associations between MPUWD risk behaviors, domain‐specific risk perceptions, and broad personality dimensions. An Italian community sample (n = 804) completed a survey regarding MPUWD risk perceptions and engagement in MPUWD, in addition to the HEXACO‐PI‐R, a broad six‐factor personality inventory (honesty‐humility, emotionality, extraversion, agreeableness, conscientiousness, openness to experience), and the DOSPERT, a six‐factor domain‐specific self‐report risk‐taking measure (health/safety, recreational, social, ethical, gambling, and investment). With respect to domain‐specific risk taking, greater frequency of SMS use while driving most strongly was associated with greater risk taking for the health/safety, gambling, and ethical risk domains. Further, greater honesty‐humility and conscientiousness, two traits related to cognitive control and risk behaviors, and to a lesser extent openness to experience, were associated with less frequent MPUWD, and positively associated with MPUWD risk perceptions. With growing public safety concern surrounding MPUWD, understanding associated personality factors is not only important for identifying psychological mechanisms underlying risk behavior, but also for more effective prevention and intervention programs. 相似文献
60.
Robert Woods 《Population studies》2013,67(2):147-162
This paper critically discusses recent attempts to estimate long-term trends in the stillbirth rate for England and Wales. It assesses the available historical evidence for the level of late-fetal mortality, drawing especially on examples from Norway, Sweden, and Denmark. A theoretical fetal–infant life table for a high-mortality population is also outlined as a means of analysing the relationship between segments of the conception-to-first-birthday mortality curve. Finally, new estimates of the stillbirth rate for England and Wales are proposed, based on variations in the early neonatal and maternal mortality rates during the 1930s. These estimates are substantially lower than the earlier estimates and are more in keeping with the available evidence from northern Europe. The implications of the revised estimates for interpretations of historical changes in mortality patterns are also considered. 相似文献