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731.
732.
Valerie Anderson Jonny Gifford Janet Wildman 《Human Resource Development International》2020,23(3):208-237
ABSTRACTThis paper responds to calls for new inquiries into the use of technology in HRD. We examine how, and to what extent, social media tools contribute to learner experiences and learner outcomes in an HRD intervention in a workplace context. We analyse qualitative and quantitative data relating to a massive open online course (MOOC) in a healthcare sector case study setting. We examine the interaction between the MOOC programme, social learning through social media tools and learner outcomes. The results of our evaluation show that usage of social media tools does not significantly affect knowledge outcomes but social media usage enhances affective outcomes. We conclude that social media tools can foster productive social learning processes. We also find evidence of some reluctance to engage with the technologies and declining patterns of interactivity using social media over the duration of the MOOC programme. We conclude that a more nuanced theorization to take account of personal and professional workplace context is necessary to explain how learners regulate their engagement with social media tools and the effect of social technologies for sustained social learning in HRD interventions. 相似文献
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This paper examines how behavioral biases caused by salient events affect the government provision of public goods. We develop a theory in which competing communities lobby the government for allocations of a local public good. Salient events bias community demands for the good, which results in inefficient allocations. We empirically test this theory using salient wildfires and government projects to reduce wildfire risk. Wildfires reduce risk to nearby communities, but may increase demand for fuels management projects because of biases induced by salient wildfires. We find that communities experiencing recent nearby fires are more likely to receive fuels management projects. (JEL D03, H41, Q24) 相似文献
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Anderson Ara Francisco Louzada Carlos A. R. Diniz 《Journal of applied statistics》2017,44(13):2287-2300
The monitoring of web servers through statistical frameworks is of utmost important in order to verify possible suspicious anomalies in network traffic or misuse actions that compromise integrity, confidentiality, and availability of information. In this paper, by considering the Plackett copula function, we propose a bivariate beta-autoregressive moving average time-series model for proportion data over time, which is the case for variables present in web server monitoring such as error rates. To illustrate the proposed methodology, we monitor a Brazilian web server's rate of connection synchronization and rejection errors in a web system, with error logging rate in the past 10?min. In essence, the entire methodology may be generalized to any number of time-series of error rates. 相似文献
738.
Marti J. Anderson Daniel C. I. Walsh K. Robert Clarke Ray N. Gorley Edlin Guerra‐Castro 《Australian & New Zealand Journal of Statistics》2017,59(1):57-79
The essence of the generalised multivariate Behrens–Fisher problem (BFP) is how to test the null hypothesis of equality of mean vectors for two or more populations when their dispersion matrices differ. Solutions to the BFP usually assume variables are multivariate normal and do not handle high‐dimensional data. In ecology, species' count data are often high‐dimensional, non‐normal and heterogeneous. Also, interest lies in analysing compositional dissimilarities among whole communities in non‐Euclidean (semi‐metric or non‐metric) multivariate space. Hence, dissimilarity‐based tests by permutation (e.g., PERMANOVA, ANOSIM) are used to detect differences among groups of multivariate samples. Such tests are not robust, however, to heterogeneity of dispersions in the space of the chosen dissimilarity measure, most conspicuously for unbalanced designs. Here, we propose a modification to the PERMANOVA test statistic, coupled with either permutation or bootstrap resampling methods, as a solution to the BFP for dissimilarity‐based tests. Empirical simulations demonstrate that the type I error remains close to nominal significance levels under classical scenarios known to cause problems for the un‐modified test. Furthermore, the permutation approach is found to be more powerful than the (more conservative) bootstrap for detecting changes in community structure for real ecological datasets. The utility of the approach is shown through analysis of 809 species of benthic soft‐sediment invertebrates from 101 sites in five areas spanning 1960 km along the Norwegian continental shelf, based on the Jaccard dissimilarity measure. 相似文献
739.
Cora Fernandez Anderson 《Journal of Women, Politics & Policy》2017,38(2):221-246
In 2012 Uruguay became the second country in Latin America to decriminalize abortion during the first trimester. Drawing on original field research, this article explains the success of abortion reform based on the existence of a strong campaign for decriminalization. The women’s movement used frames that resonated within civil society, gathered support from key social actors, and collaborated closely with sympathetic legislators. In addition, three contextual factors ensured both the availability and success of these strategies: a weak presence of the Catholic Church, a president not opposed to abortion reform, and a highly institutionalized party system with a strong leftist coalition. 相似文献
740.
Belinda Davis Smith Isiah Marshall Jr. Brian E. Anderson Kevin K. Daniels 《Journal Of Human Behavior In The Social Environment》2017,27(5):438-449
ABSTRACTHistorically Black colleges and universities (HBCUs) have a long-standing history of engaging the African-American community. In most instances, these institutions are located in predominantly African-American communities. This article intends to offer a discussion of a pedagogical approach used at an HBCU, located in a large mid-Atlantic city. The purpose of this macro-assignment was an effort designed to prepare BSW students for macro-practice with communities through participation in service-learning projects that involved community engagement with urban communities. Outcomes reflect that students have a vested interest in working with underserved communities, which exemplifies the School of Social Work’s mission; said mission is to fully prepare urban social work leaders who are committed to the alleviation of human suffering, social justice, and the improvement of the quality of life for diverse urban populations. 相似文献