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951.
Kim Witte Gary Meyer Helen Bidol Mary K. Casey Jenifer Kopfman Karen Maduschke 《Communication Studies》2013,64(3):229-232
An ecological theory of health communication is offered that addresses how communications about health interdependently work together to influence health and/or health‐related behaviors. To explain how a multitude of variables work together in a synergistic manner, the present work borrows heavily from chaos theory. The use of chaos theory concepts represents a significant paradigm shift from previous, more reductionist, health communication perspectives. The present work (a) provides a definition of health communication, (b) offers an overall health communication framework, (c) introduces relevant chaos theory concepts into the health communication literature, and (d) illustrates how chaos theory concepts can be applied to the field of health communication in order to explain health‐related behavior. Specific operationalization procedures are suggested to test the theoretical ideas outlined. 相似文献
952.
953.
Interest in single-cell analysis has increased because it allows to understand cell metabolism and characterize disease states, cellular adaptation to environmental changes, cell cycles, etc. Here, the authors propose a device to electrically trap and lyse single-bacterial cells in an array format for high-throughput single-cell analysis. The applied electric field is highly deformed and concentrated toward the inside of the microwell structures patterned on the planar electrode. This configuration effectively generates dielectrophoretic force to attract a single cell per well. The microwell has a comparable size to the target bacterial cell making it possible to trap single cells by physically excluding additional cells. Inducing highly concentrated electric potential on the cell membrane can also effectively lyse the trapped single-bacterial cells. The feasibility of the authors' approach was demonstrated by trapping and lysing Escherichia coli cells at the single-cell level. The present microwell array can be used as a basic tool for individual bacterial cell analysis. 相似文献
954.
Sarah J. Schoppe-Sullivan Jingyi Wang Junyeong Yang Minjung Kim Yiran Zhang Susan H. Yoon 《Child development》2023,94(4):874-888
This study identified coparenting patterns using data collected across 2007–2010 from low-income couples (N = 2915; 26.90% non-Hispanic White; 9.41% non-Hispanic Black; 34.24% Hispanic, 29.27% other or mixed race) with young children (M = 3.65 years; SD = 1.31 years; 48% girls) and examined relations with children's social–emotional adjustment. Latent profile analysis revealed four coparenting patterns: mutual high-quality (43.4%), moderate-quality, mothers less positive (31.8%), moderate-quality, fathers less positive (15.9%), and low-quality, mothers less positive (8.9%). When parents' perspectives on coparenting were positive and congruent, children fared best. Children also fared well when coparenting quality was moderate, and mothers were less positive than fathers. When coparenting quality was moderate and fathers were less positive than mothers, children showed the poorest adjustment. 相似文献
955.
Vince Geiger Kim Beswick Sharon Fraser Ben Holland-Twining 《British Educational Research Journal》2023,49(5):900-924
In this paper we develop a model for the capabilities required by principals for effective Science, Technology, Engineering and Mathematics (STEM) leadership. The model underpinned a large national cross-sectional research and development project across Australian states in both primary and secondary schools. This model is developed via synthesis of research literature across leadership and STEM education. The model consists of five dimensions of principals' STEM capability: (1) STEM discipline-specific and integrated knowledge and practices; (2) contexts; (3) dispositions; (4) tools; and (5) critical orientation. These dimensions represent distinct, but interrelated, capacities required by principals to establish and maintain positive STEM learning cultures within schools. Elaborations have been provided, in the form of capabilities, for each of these dimensions. The model has the potential for shaping principals' STEM leadership development trajectories and structuring targeted professional learning programmes for principals, teachers and other members of the school community. 相似文献
956.
Kwon Kyong-Ah Ford Timothy G. Salvatore Alicia L. Randall Ken Jeon Lieny Malek-Lasater Adrien Ellis Natalie Kile Mia S. Horm Diane M. Kim Sun Geun Han Minkyung 《Early Childhood Education Journal》2022,50(1):169-171
Early Childhood Education Journal - The original version of this article unfortunately contains some typo in Table 1. 相似文献
957.
Kim Nam Ju Vicentini Cristiane Rocha Belland Brian R. 《International Journal of Science and Mathematics Education》2022,20(2):215-236
International Journal of Science and Mathematics Education - Success in problem-based learning requires both strong information literacy to search for, evaluate, and use information effectively,... 相似文献
958.
Lee Diane Sookyoung Ramirez Garcia Jose Manuel Overton Larissa Gordon Biddle Kimberly A. Lacey Rodney O. Gorter Josiah Heller de Leon Brian 《The Urban Review》2022,54(4):624-648
The Urban Review - The purpose of this study was to identify the internal and external factors that support the academic and career resourcefulness of adolescents from underserved backgrounds. This... 相似文献
959.
Junghoon Kim 《The Information Society》2013,29(4):307-308
Abstract In this paper, an analysis is provided of data to evaluate the extent to which investment in information resources can be demonstrated to have direct value in greater industrial profitability. Specifically, it examines the statistical relationship between “added value” for the manufacturing industries of the country and the investment they make in purchased information services. A review is presented of the context of evaluation of the value of information, with anecdotal evidence concerning its role. We review the theoretical background for the analysis and describe the data on which the analysis is based. The discussion of data covers the sources, the nature, and the structure of the data sets and provides a detailed listing of the data itself. We also present the results of the analysis, discuss the implications, and conclude with a commentary on potential problems due to the heterogeneous character of the data, including the analysis of a range of alternative models all of which produce the same qualitative results that were obtained in the basic regression. We apply a Cobb‐Douglas model to value added as a function of labor, capital, purchases of information services, and purchases of other input. We do a regression analysis for that model on 50 manufacturing industries, using data from 1967, and 51 industries, using data from 1972. The theory states that, if industry is operating in an optimal manner, the marginal return from the external purchases (whether for information services or for other input), as expressed by the coefficient in the regression, should be zero. If the coefficient is positive, industry is not using enough of the external resource; if negative, industry is using too much of it. Our results show that there is a demonstrable relationship between increased added value (and therefore profitability) and investment in information resources. Beyond that, the evidence suggests that manufacturing industry is using far less than the optimal amount of information resources than should be optimal. 相似文献
960.