Response to KozmaKozma's analysis of the NETP in terms of the economic development rationale for educational reforms is consistent with the thinking of the Technical Working Group. He makes explicit the connections between the transformations in learning environment design that are recommended by the Plan and its underlying economic rationale, and he provides an encompassing set of indicators that informatively augment the NETP. In his review, Kozma highlights analyses of how information and communications technology (ICT) has contributed to macroeconomic shifts from a manufacturing to an information economy and microeconomic changes in business organization toward greater collaboration and coordination of workers. He also points to corresponding alterations in the skills required in many jobs and in skills called for in contemporary society, and to the growing misalignment of largely peripheral school uses of ICT today with emerging learner uses of ICT outside school; the latter, in their social and pervasive nature, are closer to the uses of ICT in business. In his comments on the NETP sections on learning, assessment, teaching, productivity, and infrastructure, Kozma accurately summarizes our efforts in the plan, for each of these interdependent system components, to re-orient educational system strategies and uses of ICT toward the patterns of usage and activity structures found in highly productive work settings, such as 'collaboration, problem solving, critical thinking, and multimedia communication within the context of complex, real world problems'.Kozma recommends conducting large-scale research on technology-based classroom practice using nationally representative samples to enable policymakers to better understand progress toward productive uses of ICT in education. Our Technical Working Group also observed the need for such studies, but we did not incorporate this observation in the NETP, as we were charged not with developing a comprehensive set of research priorities, but instead with articulating specific grand challenge research problems, progress on which would be instrumental to achieving the vision developed in the NETP.
Abstract.A system to study the gas and particle phase products from gas phase hydrocarbon oxidation is described. It consists of a gas phase photochemical flow reactor followed by a diffusion membrane denuder to remove gases from the reacted products, or a filter to remove the particles. Chemical analysis is performed by an atmospheric pressure chemical ionization (APCI) triple quadrupole mass spectrometer. A diffusion membrane denuder is shown to remove trace gases to below detectable limits so the particle phase can be studied. The system was tested by examining the products of the oxidation of m-xylene initiated by HO radicals. Dimethylphenol was observed in both the gas and particle phases although individual isomers could not be identified. Two furanone isomers, 5-methyl-2(3H)furanone and 3-methyl-2(5H)furanone were identified in the particulate phase, but the isobaric product 2,5 furandione was not observed. One isomer of dimethyl-nitrophenol was identified in the particle phase but not in the gas phase.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.