University of Maine

About: University of Maine is a education organization based out in Orono, Maine, United States. It is known for research contribution in the topics: Population & Ice sheet. The organization has 8637 authors who have published 16932 publications receiving 590124 citations. The organization is also known as: University of Maine at Orono.

Children's Implicit Personality Theories as Predictors of Their Social Judgments

Abstract: Social judgment and trait ascription have long been central issues in psychology. Two studies tested the hypothesis that children who believe that personality is a fixed quality (entity theorists) would make more rigid and long-term social judgments than those who believe that personality is malleable (incremental theorists). Fourth and fifth graders (mean age 10.2 years) viewed a slide show of a boy displaying negative behaviors (Study 1--being shy, clumsy, and nervous; Study 2--lying, cheating, and stealing) and then made a series of ratings. Half of the subjects saw a consistent (negative) ending, and half saw an inconsistent (more positive) ending. Even when they viewed positive counterevidence, entity theorists did not differ in their ratings of the focal traits, but incremental theorists did. Entity theorists in Study 2 also predicted significantly less change in the short term and the long term than did incremental theorists. Study 2 further revealed that, when the behaviors were more negative, entity theorists made more generalized and global negative trait evaluations of the target, showed less empathy, and recommended more punishment. Differences in the social judgment processes of entity and incremental theorists are discussed, and implications for issues (such as stereotyping) are explored.

The lobster fiefs: Economic and ecological effects of territoriality in the maine lobster industry

Abstract: Lobstermen from each community along the coast of central Maine claim inshore fishing rights in particular areas. Although their claims are unrecognized by the state, they are well established and backed by surreptitious violence. Two kinds of lobstering territories exist, here termed “nucleated” and “perimeterdefended,” which differ essentially in the extent to which exclusive fishing rights are maintained. These differences in territorial organization affect the fishing effort of lobstermen, which in turn has a strong biological and economic impact.

An Econometric Analysis of the Costs of Sequestering Carbon in Forests

Abstract: The Kyoto Protocol and the U.S. Climate Change Plan recognize afforestation as a potential means of reducing atmospheric CO 2 concentrations. To examine the cost-effectiveness of afforestation, we use econometric land use models to estimate the marginal costs of carbon sequestration in Maine, South Carolina, and Wisconsin. Our findings include the following: (a) earlier studies of afforestation programs tend to underestimate carbon sequestration costs, (b) afforestation still appears to be a relatively low-cost approach to reducing CO 2 concentrations, (c) Wisconsin offers the lowest-cost opportunties for carbon sequestration, and (d) projected population changes have the largest effect on costs in South Carolina.

Ontology-driven geographic information systems

Abstract: Information integration is the combination of different types of information in a framework so that it can be queried, retrieved, and manipulated. Integration of geographic data has gained in importance because of the new possibilities arising from the interconnected world and the increasing availability of geographic information. Many times the need for information is so pressing that it does not matter if some details are lost, as long as integration is achieved. To integrate information across computerized information systems it is necessary first to have explicit formalizations of the mental concepts that people have about the real world. Furthermore, these concepts need to be grouped by communities in order to capture the basic agreements that exist within different communities. The explicit formalization of the mental models within a community is an ontology. This thesis introduces a framework for the integration of geographic information. We use ontologies as the foundation of this framework. By integrating ontologies that are linked to sources of geographic information we allow for the integration of geographic information based primarily on its meaning. Since the integration may occurs across different levels, we also create the basic mechanisms for enabling integration across different levels of detail. The use of an ontology, translated into an active, information-system component, leads Ontology-Driven Geographic Information Systems. The results of this thesis show that a model that incorporates hierarchies and roles has the potential to integrate more information than models that do not incorporate these concepts. We developed a methodology to evaluate the influence of the use of roles and of hierarchical structures for representing ontologies on the potential for information integration. The use of a hierarchical structure increases the potential for information integration. The use of roles also improves the potential for information integration, although to a much lesser extent than did the use of hierarchies. The combined effect of roles and hierarchies had a more positive effect in the potential for information integration than the use of roles alone or hierarchies alone. These three combinations (hierarchies, roles, roles and hiearchies) gave better results than the results using neither roles nor hierarchies.