Apparent hyperglycemic and hypoglycemic conditioned responses with exogenous insulin as the unconditioned stimulus

Rats were injected with either insulin or saline and placed in one of two distinctive environments for 25 min on each of several days. On test trials for conditioning, the animals were injected with saline in both environments and blood glucose levels were measured. Apparent conditioned changes were obtained, but the direction of the conditioned response depended upon the environment in which the animals were placed. A conditioned hyperglycemic response occurred in one environment, and a conditioned hypoglycemic response occurred in the other environment. This pattern occurred in both within-subject and between-subjects designs and was not influenced by route of insulin injection (ip or sc). The hypoglycemic, but not the hyperglycemic, response was blocked by methyl atropine. The occurrence of both CR patterns with the same low insulin dose is contrary to previous speculation that the different CR patterns are due to different dose levels of insulin.     

Self reference in interpretive performance

Self reference, the capacity of language to “talk about itself”, provides a useful paradigm for understanding, directing, and performing oral interpretation. An analysis of the various relationships and interactions within this art form reveals dimensions of self reference, that feature of language which transforms a system of discursive symbolism into a presentational literary art form. To the degree that oral interpretation capitalizes on this reflexive power of language, the transformation is most complete in this literary art form.     

Online Communities of Practice: A Catalyst for Faculty Development

This article addresses the concept of communities of practice and how it has come of age for the professional development of professors as teachers. Thanks to current technological options, faculty developers can enhance the opportunity for the entire faculty to learn through the use of online communities. Designing a faculty development portal using community of practice concepts can be an effective means to jump-start, facilitate, develop, and sustain faculty involvement in academic communities.     

The Value-Added Nature of Service-Learning

This research explores the benefits of service-learning among a group of Midwestern college students. Students enrolled in a section of a Juvenile Delinquency course served as volunteers at a juvenile detention facility and were studied using a pre-test/post-test survey design. This pilot project also included a comparison group of students in a section of the course which did not involve service-learning. The study compared service-learning to non-service-learning students in terms of attitudes regarding juvenile delinquency, punishment, and attributions of criminal behavior. We also examined any possible effects of service-learning on student academic skills, career goals, and comfort level with delinquents. Overall, we found that the service-learning project was a valuable educational tool having a positive impact on a number of student outcomes. We discuss the implications of these findings for service-learning research and practice.     

Understanding Categorical Hierarchies: The Earliest Levels of Skill

2 categorization skills necessary for understanding hierarchies are the ability to form categories at different levels of generality and the ability to include the same objects into multiple categories. 2-year-olds appear to have the first skill, but some theoretical and empirical work suggests that the second may be a later acquisition. Yet, in 3 studies, 2- and 3-year-olds applied familiar basic level and superordinate labels to the same objects, even when reminded of basic labels before being tested with superordinates. They did not reserve superordinates for objects with unfamiliar basic level names (Study 2), and they were willing to apply superordinates to objects presented singly rather than in groups (Study 3). Thus, contrary to the implications of some previous work, 2- and 3-year-olds appear to have both of the categorization skills necessary for forming categorical hierarchies.     

论高等教育领域合作伙伴关系模型的构建

本文描述一个可以用来审视和检验教育机构之间合作伙伴关系的理论模型,重点讨论该模型的不同组成成分以及它们之间的相互关系,分析合作伙伴关系建立过程中涉及的各个方面,描述合作伙伴关系的重要特征,特别是发展早期的特征,以及提出评估合作伙伴关系时应该考虑的一系列重要问题.＃     

Recent Publications in Natural History

LIBRARY AMERICAN MUSEUM OF NATURAL HISTORY: Recent Publications in Natural History is a regular feature of Curator. It lists recent publications under various headings, Mary E. Genett–Editor