Kent State University

About: Kent State University is a education organization based out in Kent, Ohio, United States. It is known for research contribution in the topics: Liquid crystal & Population. The organization has 10897 authors who have published 24607 publications receiving 720309 citations. The organization is also known as: Kent State & KSU.

Toward a Theory of Motivated Information Management

Abstract: The relationship between uncertainty and information has long been at the forefront of the social scientific study of human behavior. The last decade has seen increased attention among communication scholars to the information-management process. The result has been significant widening of ideological lenses and an impressive growth of knowledge. However, a review of the literature shows that there is the need for a framework that integrates and extends these efforts. We advance the theory of motivated information-management to fill that need. The theory proposes a 3-phase process of information-management in interpersonal encounters, emphasizes the role of efficacy, and brings attention to the interactive nature of information-management in this context. We explicate the theory's propositional structure and present a graphical model intended to capture some of the overarching principles detailed in that structure.

Conservation of Social Resources: Social Support Resource Theory

Abstract: A motivational model of social support was developed, based on a general stress model termed Conservation of Resources Theory (COR). COR suggests that individuals have, as a primary goal to preserve and protect those resources that they value. This resource conservation is made possible, in turn, by possessing a strong resource pool such that resource strength preserves further resource development and resource security. Resources, in other words, are both valued directly and valued indirectly as they serve to protect other resources. Social support provides a major reservoir for resources outside those endowed to the self (e.g. high self-esteem, sense of mastery). Examining our model and those proposed recently by others, we suggest that social support may be a central building block of health and well-being because together with personal resources t is related to overall sense of identity. Corollaries of this theory were also developed and supporting research was presented. Implications of our social su...

A noble metal-free reduced graphene oxide–CdS nanorod composite for the enhanced visible-light photocatalytic reduction of CO2 to solar fuel

Abstract: Solar-fuel production has attracted considerable attention because of the current demand to find alternative transportation fuels with particular emphasis on those fuels obtained photocatalytically from water and CO2. In this work, reduced graphene oxide (RGO)–CdS nanorod composites were successfully prepared by a one-step microwave-hydrothermal method in an ethanolamine–water solution. These composite samples exhibited a high activity for the photocatalytic reduction of CO2 to CH4, even without a noble metal Pt co-catalyst. The optimized RGO–CdS nanorod composite photocatalyst exhibited a high CH4-production rate of 2.51 μmol h−1 g−1 at an RGO content of 0.5 wt%. This rate exceeded that observed for the pure CdS nanorods by more than 10 times and was better than that observed for an optimized Pt–CdS nanorod composite photocatalyst under the same reaction conditions. This high photocatalytic activity was ascribed to the deposition of CdS nanorods onto the RGO sheets, which act as an electron acceptor and transporter, thus efficiently separating the photogenerated charge carriers. Furthermore, the introduction of RGO can enhance the adsorption and activation of CO2 molecules, which speeds up the photocatalytic reduction of CO2 to CH4. The proposed mechanism for the observed photocatalytic reaction with the RGO–CdS nanorod composite was further confirmed using transient photocurrent response and electrochemical impedance spectra. This work not only demonstrates a facile microwave-assisted hydrothermal method for fabricating highly active RGO–CdS nanorod composite photocatalysts, but also demonstrates the possibility of utilizing of an inexpensive carbon material as a substitute for noble metals in the photocatalytic reduction of CO2.