Michigan State University

About: Michigan State University is a education organization based out in East Lansing, Michigan, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 60109 authors who have published 137074 publications receiving 5633022 citations. The organization is also known as: MSU & Michigan State.

Managing Impressions Online: Self-Presentation Processes in the Online Dating Environment

Abstract: This study investigates self-presentation strategies among online dating participants,exploring how participants manage their online presentation of self in order to accom-plish the goal of finding a romantic partner. Thirty-four individuals active on a largeonline dating site participated in telephone interviews about their online dating experi-ences and perceptions. Qualitative data analysis suggests that participants attended tosmall cues online, mediated the tension between impression management pressures andthe desire to present an authentic sense of self through tactics such as creating a profilethat reflected their ‘‘ideal self,’’ and attempted to establish the veracity of their identityclaims. This study provides empirical support for Social Information Processing theoryin a naturalistic context while offering insight into the complicated way in which ‘‘hon-esty’’ is enacted online.doi:10.1111/j.1083-6101.2006.00020.x

Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography

Abstract: A latitudinal gradient in biodiversity has existed since before the time of the dinosaurs, yet how and why this gradient arose remains unresolved. Here we review two major hypotheses for the origin of the latitudinal diversity gradient. The time and area hypothesis holds that tropical climates are older and historically larger, allowing more opportunity for diversification. This hypothesis is supported by observations that temperate taxa are often younger than, and nested within, tropical taxa, and that diversity is positively correlated with the age and area of geographical regions. The diversification rate hypothesis holds that tropical regions diversify faster due to higher rates of speciation (caused by increased opportunities for the evolution of reproductive isolation, or faster molecular evolution, or the increased importance of biotic interactions), or due to lower extinction rates. There is phylogenetic evidence for higher rates of diversification in tropical clades, and palaeontological data demonstrate higher rates of origination for tropical taxa, but mixed evidence for latitudinal differences in extinction rates. Studies of latitudinal variation in incipient speciation also suggest faster speciation in the tropics. Distinguishing the roles of history, speciation and extinction in the origin of the latitudinal gradient represents a major challenge to future research.

Toward a more robust theory and measure of social presence: review and suggested criteria

Abstract: At a time of increased social usage of net and collaborative applications, a robust and detailed theory of social presence could contribute to our understanding of social behavior in mediated environments, allow researchers to predict and measure differences among media interfaces, and guide the design of new social environments and interfaces. A broader theory of social presence can guide more valid and reliable measures. The article reviews, classifies, and critiques existing theories and measures of social presence. A set of criteria and scope conditions is proposed to help remedy limitations in past theories and measures and to provide a contribution to a more robust theory and measure of social presence.