Cross-modality contrast: Exteroceptive context habituation enhances taste neophobia and conditioned taste aversions     

Denis Mitchell  William Winter  Terrie Moffitt 《Learning & behavior》1980,8(4):524-528

The relationship between absolute and relative stimulus novelty was examined within the context of the conditioned taste aversion paradigm in which the relative novelty of the conditioned interoceptive stimulus was manipulated by differential exteroceptive context habituation. Rats received similar isolation histories but either 5 or 30 days of habituation to the test environment prior to treatment. One group was administered lithium chloride following saccharin consumption, a second group was administered isotonic saline following saccharin consumption, and a third group was administered saline after water consumption. The animals habituated for 30 days exhibited greater conditioned avoidance and greater neophobic avoidance of saccharin than did animals habituated for only 5 days. The results are interpreted in terms of a cross-modality stimulus contrast effect which implicates context habituation as an important parameter of both taste neophobia and taste aversion learning.  相似文献   

Cooperating Teachers' Perspectives Under Scrutiny: A comparative analysis of Australia and Canada     

Jane Mitchell  Joce Nuttall 《Asia-Pacific Journal of Teacher Education》2007,35(1):5-25

The ways in which cooperating teachers give shape and meaning to their work in practicum settings is one of the most critical elements of initial teacher education. This international comparison draws upon surveys of Australian and Canadian cooperating teachers. The global contrast highlights taken‐for‐granted assumptions in local settings that in some instances are cause for celebration and in other instances concern. The comparison of the two settings illustrates, among other things: some striking similarities in the profiles of cooperating teachers; important differences with respect to the cooperating teachers' preparation and remuneration for their role in practicum settings; and deeper complexities regarding the relationship between schools and universities.  相似文献   

DOES THE SCHOOL COMPOSITION EFFECT MATTER? EVIDENCE FROM BELGIAN DATA   总被引：2，自引：1，他引：1  

Xavier  Dumay  Vincent  Dupriez 《British Journal of Educational Studies》2008,56(4):440-477

ABSTRACT:  Even if the literature on the effects of pupil composition has been extensive, no clear consensus has been reached concerning the significance and magnitude of this effect. The first objective of this article is to estimate the magnitude of the school composition effect in primary schools (6th grade) in French-speaking Belgium. Different indicators of school composition are used: academic, socio-cultural, 'language' and sex composition. Except for sex composition, the results show that the school composition effect explains significant amount of between schools variance even after controlling for pupils' initial performance, socio-cultural background, and non-cognitive dispositions. The second objective is to examine covariance between school composition and several organisational variables and their joint effect on school performance. The second set of analyses is intended to question the conceptual nature of the school composition effect, establishing whether it is direct or indirect.  相似文献   

要么发表成果,要么淘汰出局-大学图书馆员的两难困境?     

W.Bede  Mitchell  Mary  Reichel  何朝晖 《大学图书馆学报》2000,18(2):3-9,14

本文考察了发表学术成果的要求对图书馆员获得长期或连续聘用的影响。在对已有文献进行回顾后 ,作者提供了对研究型的、能授予博士或硕士学位的大学进行调查的结果。在 690所答复调查的学校中 ,5 4.3 %实行了长期馆员 (tenure -tracklibrarian)聘用制。其中 ,超过 60 %的学校要求馆员必须发表学术成果 ,3 4 .6%的学校鼓励馆员发表学术成果。在这 3 74所学校中 ,92 .2 %的馆员在为期三年的长期聘用考核中获得通过。作者还对没有通过考核的馆员及据信是为避开考核而辞职的馆员的情况作了分析。  相似文献   

The Internet Backbone and the American Metropolis   总被引：19，自引：0，他引：19  

Mitchell L. Moss  Anthony M. Townsend 《The Information Society》2000,16(1):35-47

Despite the rapid growth of advanced telecommunications services, there is a lack of knowledge about the geographic diffusion of these new technologies. The Internet presents an important challenge to communications researchers, as it threatens to redefine the production and delivery of vital services including finance, retailing, and education. This article seeks to address the gap in the current literature by analyzing the development of Internet backbone networks in the United States between 1997 and 1999. We focus upon the intermetropolitan links that have provided transcontinental data transport services since the demise of the federally subsidized networks deployed in the 1970s and 1980s. We find that a select group of seven highly interconnected metropolitan areas consistently dominated the geography of national data networks, despite massive investment in this infrastructure over the study period. Furthermore, while prosperous and internationally oriented American cities lead the nation in adopting and deploying Internet technologies, interior regions and economically distressed cities have failed to keep up. As information-based industries and services account for an increasing share of economic activity, this evidence suggests that the Internet may aggravate the economic disparities among regions, rather than level them. Although the capacity of the backbone system has slowly diffused throughout the metropolitan system, the geographic structure of interconnecting links has changed little. Finally, the continued persistence of the metropolis as the center for telecommunications networks illustrates the need for a more sophisticated understanding of the interaction between societies and technological innovations.  相似文献   

The Effectiveness of an Initial Teacher Training Partnership in Preparing Students to Teach Art in the Primary School     

Linda Green  Robin Mitchell 《The International Journal of Art & Design Education》1998,17(3):245-254

Recent government reform of initial teacher education has increased teachers’ responsibility for training students in schools, bringing about some fundamental changes in the professional relationship between the schools, higher education institutions (HEIs), teachers and students. This paper reports on primary undergraduate student teachers’ and their class teachers’ perceptions of school-based training to teach art. Class teachers were interviewed about their preparedness to train students and questionnaires and interviews were used to gauge students’ views of the effectiveness of university-based courses and the support given to them by teachers. The findings indicate that teachers were able to support students in matters of classroom management and resources but that they were mostly unable to assist them in developing subject knowledge and understanding of art teaching and learning. This raises concerns about teachers’ subject knowledge and their confidence in training students. Our findings suggest that there is significant room for improvement in the partnership arrangements between schools and HEIs in order to better support students’ teaching of art.  相似文献   

Theory of Employee Survival     

Vincent J. Natoli 《Performance Improvement Quarterly》2004,17(4):80-94

ABSTRACT This paper presents the Theory of Employee Survival, which states that an applicant's initial attraction and selection into an organization, and an employee's retention and promotion within the organization are dependent on an authoritarianism congruence between the applicant and/or employee, and the employer.  相似文献   

Correction to: Identifying exploration profiles for higher education and their relationship with different student variables and outcomes     

Demulder  Lien  Verschueren  Karine  Lacante  Marlies  Donche  Vincent 《European Journal of Psychology of Education - EJPE》2023,38(3):1145-1163

European Journal of Psychology of Education - This study aims to better understand differences in the decision-making process behind study choices for higher education by investigating the presence...  相似文献   

Lessons from lockdown: Autistic students,parents and mainstream schools     

Carol Vincent  Caroline Oliver  Georgia Pavlopoulou 《British Educational Research Journal》2023,49(3):522-537

This paper reports on the findings of a BERA-funded small-scale project that explores the impacts of COVID-19 lockdowns on the educational experiences of autistic children and young people who attend mainstream schools and their parents/carers in England. We observe that, unsurprisingly, lockdown resulted in associated stresses for families. However, our main argument is that for the participants, the pandemic has not been experienced to the same extent as is popularly understood; that is, causing major disruption to children's schooling experiences and/or unusual levels of social isolation. Using the concept of stigma as a theoretical resource, we argue that this is because the families with whom we spoke were already experiencing, pre-COVID-19, disrupted schooling and degrees of social isolation. Indeed, for many of the young people, the break from school occasioned by lockdown allowed them a release from the more negative and stigmatising aspects of their routine experiences within school. We therefore argue that the disruption of the pandemic sheds light on how stigma shapes students' daily school experiences.  相似文献