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231.
Jessamy Perriam Andreas Birkbak Andy Freeman 《International Journal of Social Research Methodology》2020,23(3):277-290
ABSTRACTQualitative and mixed methods digital social research often relies on gathering and storing social media data through the use of APIs (Application Programming Interfaces). In past years this has been relatively simple, with academic developers and researchers using APIs to access data and produce visualisations and analysis of social networks and issues. In recent years, API access has become increasingly restricted and regulated by corporations at the helm of social media networks. Facebook (the corporation) has restricted academic research access to Facebook (the social media platform) along with Instagram (a Facebook-owned social media platform). Instead, they have allowed access to sources where monetisation can easily occur, in particular, marketers and advertisers. This leaves academic researchers of digital social life in a difficult situation where API related research has been curtailed. In this paper we describe some rationales and methodologies for using APIs in social research. We then introduce some of the major events in academic API use that have led to the prohibitive situation researchers now find themselves in. Finally, we discuss the methodological and ethical issues this produces for researchers and, suggest some possible steps forward for API related research. 相似文献
232.
The article considers a two-stage hierarchical Bayes technique to analyze a dataset coming from a “one-shot” device testing experiment. The development is based on the assumption of exponential model for the lifetimes with failure rate regressed according to the Cox proportional hazards model. The Bayes implementation is done through a Gibbs–Metropolis hybridization scheme that easily entertains the missing data cases as well. Lastly, numerical illustration is provided based on a real data example on electro-explosive devices. The results show that the Bayesian method performs considerably well for such type of experiments. 相似文献
233.
234.
ABSTRACTOne of Andy Furlong’s abiding concerns was to show how the problems of working-class youth are often, straightforwardly, the outcome of inequalities in employment opportunities. On rarer occasions, however, this explanation fits less well. Some young people grow up in families where poverty seems more deeply embedded and inherent to those families. Here, old ideas about a cultural ‘underclass’ can be tempting to politicians and policy makers. Our qualitative research, with 20 families living in extremely deprived U.K. neighbourhoods, showed that neither a simple lack of job opportunities nor ‘cultures of worklessness’ explained why hardship persisted for them. Our argument is that circumstances which appear to fit with the idea of an inter-generational, cultural ‘underclass’, in fact, have their provenance in a semi-permanent constellation of external socio-economic pressures bearing on successive generations of families over decades. Examples did include a shared context of declining job opportunities but extended to a contracting and disciplinary Welfare State, punitive criminal justice systems, poor-quality education and the physical decline of working-class neighbourhoods. We take one example – the destructive impact of local drug markets – to uncover the complex, obscure processes that compound the disadvantage faced by working-class young adults and their families over generations. 相似文献
235.
Vanessa LoBue Lori B. Reider Emily Kim Jessica L. Burris Denise S. Oleas Kristin A. Buss Koraly Prez‐Edgar Andy P. Field 《Infancy》2020,25(4):420-437
Collecting data with infants is notoriously difficult. As a result, many of our studies consist of small samples, with only a single measure, in a single age group, at a single time point. With renewed calls for greater academic rigor in data collection practices, using multiple outcome measures in infant research is one way to increase rigor, and, at the same time, enable us to more accurately interpret our data. Here, we illustrate the importance of using multiple measures in psychological research with examples from our own work on rapid threat detection and from the broader infancy literature. First, we describe our initial studies using a single outcome measure, and how this strategy caused us to nearly miss a rich and complex story about attention biases for threat and their development. We demonstrate how using converging measures can help researchers make inferences about infant behavior, and how using additional measures allows us to more deeply examine the mechanisms that drive developmental change. Finally, we provide practical and statistical recommendations for how researchers can use multiple measures in future work. 相似文献
236.
Over the last 20 years, the resource-based view (RBV) has reached a pre-eminent position among theories in the field of strategy, but debate continues as to its precise nature. This paper contributes to the debate by critically reviewing the development of the RBV to date. The critical appraisal examines the development of the RBV in terms of theory, method, empirical evidence and practical insights. It is contended that the permeable and eclectic nature of the RBV stems from its being a theory about what firms are and how they function, and that its popularity is due to an absence of limiting behavioural assumptions. Finally, the authors provide their own subjective views on where they think RBV scholars should focus their efforts in the future. 相似文献
237.
238.
We adapt the models of Menzio and Moen (2010) and Snell and Thomas (2010) to consider a labor market in which firms can commit to wage contracts but cannot commit not to replace incumbent workers. Workers are risk averse, so that there exists an incentive for firms to smooth wages. Real wages respond in a highly nonlinear manner to shocks, exhibiting downward rigidity, and magnifying the response of unemployment to negative shocks. We also consider layoffs and show that for a range of shocks labor hoarding occurs while wages are cut. We argue these features are consistent with recent evidence. (JEL E32, J41) 相似文献
239.
Hoe C. Lee Andy H. Lee Michael Clinton Guicheng Zhang Michelle L. Fraser 《Journal of Housing for the Elderly》2013,27(4):335-347
ABSTRACT Fear restricts the activity of older adults, potentially leading to social isolation and unhealthy life styles. Consequently, this population remains a priority for home security research and intervention. One option is to increase home security by installing security devices. However, little is known about how older adults protect their homes. In this study, 5,582 community-dwelling older people completed a cross-sectional survey. The survey was able to document the prevalence of security measures taken by older adults. More than 70% of the respondents had security screens and key-operated deadlocks and 148 (2.7%) respondents reported no security features. Respondents living alone had the lowest prevalence of home security devices. Female living alone protected their home differently from male living alone by installing different security devices. Logistic regression analysis indicated that older adults living in detached houses feel particularly vulnerable to burglary (p < .001). These survey findings have practical implication for burglary prevention. 相似文献
240.
Anoush Margaryan MSc Shell PhD Researcher Dr Betty Collis Andy Cooke 《Human Resource Development International》2013,16(2):265-274
As part of the trend towards blended learning, the Open University of Shell International Exploration and Production is shifting from predefined content-based learning to activity-based learning grounded in learners' actual workplace problems. This article acts as a case study by describing key design principles adopted by the organization and also describes how the shift addressed courses that served multinational participants. Data are provided on the learning activities in thirty-seven courses redesigned in 2002 (covering nearly 300 separate learning activities). The article concludes with some comments on work that still needs to be done as well as key implications for practitioners in other organizations. 相似文献