Chaos: exploring an engaging online model for rapid application during the pandemic     

Tabor  Joshua W. 《Educational technology research and development : ETR & D》2021,69(1):97-100

Educational technology research and development - This paper is in response to the article entitled “A design framework for enhancing engagement in student-centered learning: own it, learn...  相似文献   

Terra Populus: Workflows for Integrating and Harmonizing Geospatial Population and Environmental Data     

Tracy A. Kugler  David C. Van Riper  Steven M. Manson  David A. Haynes II  Joshua Donato  Katie Stinebaugh 《Journal of Map & Geography Libraries》2015,11(2):180-206

The Terra Populus project (TerraPop) addresses a variety of data management, curation, and preservation challenges with respect to spatiotemporal population and environmental data. In this article, we describe our approaches to these challenges, with a particular focus on geospatial data workflows and associated provenance metadata. The goal of TerraPop is to enable research, learning, and policy analysis by providing integrated spatiotemporal data describing people and their environment. To do so, TerraPop is assembling a globe-spanning and temporally extensive collection of high-quality population and environmental data, ensuring good documentation, and developing a Web-based data access system that enables users to assemble customized integrated data sets drawing on a variety of data sources and formats. We describe TerraPop's collection strategies, detail the geospatial workflows involved in preparing data for ingest into the project database and those used to transform data across formats for dissemination, and discuss the system used to capture and manage provenance metadata throughout the project. A key aspect of the project is the development of global current and historical administrative unit boundaries that can be linked to census data. These boundaries serve as the linchpin of TerraPop's data integration strategy, and constitute an important data set in their own right.  相似文献   

Generating Vocabulary Knowledge for At-Risk Middle School Readers: Contrasting Program Effects and Growth Trajectories     

Joshua F. Lawrence  Rebecca Givens Rolland  Lee Branum-Martin  Catherine E. Snow 《Journal of Education for Students Placed at Risk》2014,19(2):76-97

We tested whether urban middle-school students from mostly low-income homes had improved academic vocabulary when they participated in a freely available vocabulary program, Word Generation (WG). To understand how this program may support students at risk for long-term reading difficulty, we examined treatment interactions with baseline achievement on a state standardized test and also differential effects for students with (n = 398) and without (n = 1,395) individualized education plans (IEPs). Students in this unmatched quasi-experiment (5 WG and 4 comparison schools) completed pre- and postvocabulary assessments during the intervention year. We also retested student vocabulary knowledge after summer vacation and the following spring on 11 target words to construct a longitudinally consistent scaled score across 4 waves of data. Growth models show that students experienced summer setback. Although there were no average underlying differences in growth or differences in summer setback for students by baseline achievement, better readers improved more from program participation. IEP status did not predict differential benefits of program participation, and students with IEPs maintained gains associated with participation in WG; however, participation in the program did not change underlying growth trajectories favoring students who did not have IEPs.  相似文献   

Improving School Attendance through Collaboration: A Catalyst for Community Involvement and Change     

Joshua Childs  Ain A. Grooms 《Journal of Education for Students Placed at Risk》2018,23(1-2):122-138

ABSTRACT

Chronic absenteeism is often referred to as a problem hidden in plain sight (Chang & Romero, 2008). In recent years, more communities around the United States have been intentional on improving student attendance and limiting the impact of chronic absenteeism. Using qualitative interviews, we sought to understand how one community was implementing strategies to engage a variety of stakeholders in an effort to decrease chronic absenteeism. Findings suggest that when it comes to increasing attendance, districts and schools should consider partnering with organizations to leverage their expertise and knowledge. This article concludes with implications for policy and practice, and concludes with a research framework for studying solutions and interventions around chronic absenteeism.  相似文献   

Comparing the payoff to vocational and academic credentials in Thailand over time   总被引：1，自引：0，他引：1  

Joshua D. Hawley   《International Journal of Educational Development》2003,23(6):607-625

Using data from Thailand’s National Labor Force Survey, this paper analyzes the long-run earnings differentials for vocational and academic schooling at the secondary and post-secondary levels. The results show that vocational schooling offers consistently higher returns for men and women at the secondary and post-secondary levels. However, the returns to vocational and academic credentials vary substantially, both by gender and year. The primary conclusion that vocational schooling offers a higher private rate of return should be tempered by the understanding of the long-run decline in value of some vocational credentials and the potential growing importance of all post-secondary degrees.  相似文献   

The product market and the market for “ideas”: commercialization strategies for technology entrepreneurs     

Joshua S. GansScott Stern 《Research Policy》2003,32(2):333-350

This paper presents a synthetic framework identifying the central drivers of start-up commercialization strategy and the implications of these drivers for industrial dynamics. We link strategy to the commercialization environment—the microeconomic and strategic conditions facing a firm that is translating an “idea” into a value proposition for customers. The framework addresses why technology entrepreneurs in some environments undermine established firms, while others cooperate with incumbents and reinforce existing market power. Our analysis suggests that competitive interaction between start-up innovators and established firms depends on the presence or absence of a “market for ideas”. By focusing on the operating requirements, efficiency, and institutions associated with markets for ideas, this framework holds several implications for the management of high-technology entrepreneurial firms.  相似文献   

The fire ant wars. Nature and science in the pesticide controversies of the late twentieth century     

Buhs JB 《Isis; an international review devoted to the history of science and its cultural influences》2002,93(3):377-400

This essay uses an approach borrowed from environmental history to investigate the interaction of science and nature in a late twentieth-century controversy. This debate, over the proper response to fire ants that had been imported into the American South accidentally and then spread across the region, pitted Rachel Carson and loosely federated groups of conservationists, scientists, and citizens against the U.S. Department of Agriculture. The analysis falls into three sections: an examination of the natural history of the ants; an examination of the views of the competing factions; and an examination of how those views, transformed into action, affected the natural world. Both sides saw the ants in terms of a constellation of beliefs about the relationship between nature, science, and democracy. As various ideas were put into play, they interacted with the natural history of the insects in unexpected ways--and with consequences for the cultural authority of the antagonists. Combining insights from the history of science and environmental history helps explain how scientists gain and lose cultural authority and, more fundamentally, allows for an examination of how nature can be integrated into the history of science.  相似文献   

Making Connections     

Mulvey  Bridget K.  Parrish  Jennifer C.  Reid  Joshua W.  Papa  Jeffrey  Peters-Burton  Erin E. 《Science & Education》2021,30(3):527-555

Science & Education - In-depth understanding of nature of science (NOS) moves beyond knowledge of discrete NOS aspects to consider connections among NOS aspects. This study presents three...  相似文献   

Tracer identifiability of multiphase transport systems     

David Rappaport  Joshua Dayan 《Journal of The Franklin Institute》1975,300(1):59-74

Using the two-component Markov process of Ref. (3) to describe tracer flow in a multiphase spacially inhomogeneous transport (plug-flow) system a mathematical framework is established for the conduction of tracer experiments for system identification.Transport velocities are assumed known. The problem of unique identification of the exchange coefficients between various phases using boundary measurements is studied. Cases of different output-boundary configurations are considered (accessible and inaccessible outputs). Sufficient conditions for identifiability are given.  相似文献   

Life in the Hive: Supporting Inquiry into Complexity Within the Zone of Proximal Development   总被引：1，自引：1，他引：0  

Joshua A. Danish  Kylie Peppler  David Phelps  DiAnna Washington 《Journal of Science Education and Technology》2011,20(5):454-467

Research into students’ understanding of complex systems typically ignores young children because of misinterpretations of young children’s competencies. Furthermore, studies that do recognize young children’s competencies tend to focus on what children can do in isolation. As an alternative, we propose an approach to designing for young children that is grounded in the notion of the Zone of Proximal Development (Vygotsky 1978) and leverages Activity Theory to design learning environments. In order to highlight the benefits of this approach, we describe our process for using Activity Theory to inform the design of new software and curricula in a way that is productive for young children to learn concepts that we might have previously considered to be “developmentally inappropriate”. As an illuminative example, we then present a discussion of the design of the BeeSign simulation software and accompanying curriculum which specifically designed from an Activity Theory perspective to engage young children in learning about complex systems (Danish 2009a, b). Furthermore, to illustrate the benefits of this approach, we will present findings from a new study where 40 first- and second-grade students participated in the BeeSign curriculum to learn about how honeybees collect nectar from a complex systems perspective. We conclude with some practical suggestions for how such an approach to using Activity Theory for research and design might be adopted by other science educators and designers.  相似文献