Georgia State University

About: Georgia State University is a education organization based out in Atlanta, Georgia, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13988 authors who have published 35895 publications receiving 1164332 citations. The organization is also known as: GSU & Georgia State.

Ultrafast active plasmonics

Abstract: Surface plasmon polaritons, propagating bound oscillations of electrons and light at a metal surface, have great potential as information carriers for next-generation, highly integrated nanophotonic devices [1,2]. Since the term 'active plasmonics' was coined in 2004 [3], a number of techniques for controlling the propagation of guided surface plasmon polariton signals have been demonstrated [4-7]. However, with sub-microsecond or nanosecond response times at best, these techniques are likely to be too slow for future applications in such fields as data transport and processing. Here we report that femtosecond optical frequency plasmon pulses can propagate along a metal-dielectric waveguide and that they can be modulated on the femtosecond timescale by direct ultrafast optical excitation of the metal, thereby offering unprecedented terahertz modulation bandwidth - a speed at least five orders of magnitude faster than existing technologies.

Production and transaction economies and IS outsourcing: a study of the U.S. banking industry

Abstract: This paper studies economic determinants of IS outsourcing. It argues that a focus on comparative economic theories and models can improve our ability to explain outsourcing within the larger context of organizational strategy and environment. Specifically, the research constructs of production cost, transaction cost, and financial slack are examined simultaneously to understand what influences the outsourcing decision. To empirically test these relationships, information was gathered from senior IT managers in 243 U.S. banks. Financial indices from the archives of the Federal Reserve Bank were a second important source of data.Results of the study show that IS outsourcing in banks was strongly influenced by production cost advantages offered by vendors. Transaction costs played a role in the outsourcing decision, but it was much smaller than production costs. Finally, financial slack was not found to be a significant explanator, although firm size was a significant control factor. The paper has important implications for research and practice. For researchers, the findings provide evidence that financial criteria can be key factors in outsourcing decisions and compare the relative effects of production and transaction costs. For practitioners, the findings suggest that managerial sourcing strategies need to weigh both costs when hiring systems integrators.

Cultural Influences on Service Quality Expectations

Abstract: Service quality has been conceptualized as the difference between perceived service performance and expected service level. The authors study the effect of consumers' cultural orientation on their ...

Population-based prevention of child maltreatment: the U.S. Triple p system population trial.

Abstract: The prevention of child maltreatment necessitates a public health approach. In the U.S. Triple P System Population Trial, 18 counties were randomly assigned to either dissemination of the Triple P—Positive Parenting Program system or to the services-as-usual control condition. Dissemination involved Triple P professional training for the existing workforce (over 600 service providers), as well as universal media and communication strategies. Large effect sizes were found for three independently derived population indicators: substantiated child maltreatment, child out-of-home placements, and child maltreatment injuries. This study is the first to randomize geographical areas and show preventive impact on child maltreatment at a population level using evidence-based parenting interventions.

From resilience to resourcefulness: A critique of resilience policy and activism

Abstract: This paper provides a theoretical and political critique of how the concept of resilience has been applied to places. It is based upon three main points. First, the ecological concept of resilience...