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1.
We studied central-place foraging in rats (Rattus norvegicus) by placing food items that varied in size and weight at the ends of a 4-arm radial maze. In Experiments 1-3, rats increasingly tended to carry food to the center of the maze as the size of those items increased. Very large food items often were hoarded in the center. Rats consumed food faster on the arms than in the center, and rats traveled faster when carrying food than when not. Blocking arm entrances increased travel time between the center and the arms and decreased food carrying at every item weight except the largest. In Experiments 4-6, important conditions that influence the degree of food-carrying behavior were discovered; these were the intersection of maze arms, the presence of a conspecific, and the use of open vs. closed maze arms.  相似文献   
2.
Considerable scientific evidence demonstrates the reduction in risk for neural tube defects (NTDs) associated with maternal preconceptional folic acid supplementation. The National Society of Genetic Counselors (NSGC) endorses the U.S. Public Health Service recommendations for folic acid supplementation at the 0.4 mg level for women in the general population and at the 4.0 mg level for women at high or increased risk for NTD pregnancies for at least 4 weeks prior to active pursuit of conception. We encourage targeted educational efforts and surveillance to assess results of this dietary supplementation. The NSGC further urges the Food and Drug Administration to fortify staple foodstuffs with folic acid for a population-based approach to minimize the number of NTD births.  相似文献   
3.
A study of 79 female college students examined the reliability and validity of two new size/weight-related measures of body image. The Body-size Appraisal Scale and the Overweight Preoccupation Scale were derived from existing instruments. Analyses supported the internal consistency and 2-wk. test-retest reliability of both new scales. Correlations of scores on each scale with measures of anxiety about being fat, negative body-image affect and avoidance, restrained and bulimic eating, and depression support their concurrent and construct validity. Scores on the Overweight Preoccupation Scale were also related to the extent of investment in physical appearance. Regression analyses indicated that each new scale could be predicted from several other conceptually relevant body-image attitudes, even after actual body weight was controlled.  相似文献   
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Preparing Future Faculty programs were developed as an alternate way to prepare doctoral students for academic careers. The author discusses experiences of faculty of color in institutions of higher education. The article describes the original University of Georgia Preparing Future Faculty in Psychology program with its emphasis on students of color. Lessons learned and implications for training are discussed.  相似文献   
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Looking away from an interlocutor's face during demanding cognitive activity can help adults and children answer challenging mental arithmetic and verbal-reasoning questions (Glenberg, Schroeder, & Robertson, 1998 Glenberg, A. M., Schroeder, J. L. and Robertson, D. A. 1998. Averting the gaze disengages the environment and facilitates remembering. Memory and Cognition, 26: 651658. [Crossref], [PubMed], [Web of Science ®] [Google Scholar]; Phelps, Doherty-Sneddon, & Warnock, 2006 Phelps, F., Doherty-Sneddon, G. and Warnock, H. 2006. Functional benefits of children's gaze aversion during questioning. British Journal of Developmental Psychology, 24: 577588. [Crossref], [Web of Science ®] [Google Scholar]). While such “gaze aversion” (GA) is used far less by 5-year-old school children, its use increases dramatically during the first years of primary education, reaching adult levels by 8 years of age (Doherty-Sneddon, Bruce, Bonner, Longbotham, & Doyle, 2002 Doherty-Sneddon, G., Bruce, V., Bonner, L., Longbotham, S. and Doyle, C. 2002. Development of gaze aversion as disengagement from visual information. Developmental Psychology, 38: 438445. [Crossref], [PubMed], [Web of Science ®] [Google Scholar]). Furthermore, GA increases with increasing mental demands, with high levels signalling that an individual finds material being discussed challenging but remains engaged with it (Doherty-Sneddon et al., 2002 Doherty-Sneddon, G., Bruce, V., Bonner, L., Longbotham, S. and Doyle, C. 2002. Development of gaze aversion as disengagement from visual information. Developmental Psychology, 38: 438445. [Crossref], [PubMed], [Web of Science ®] [Google Scholar]; Doherty-Sneddon & Phelps, 2005 Doherty-Sneddon, G. and Phelps, F. 2005. Gaze aversion: A solution to cognitive or social difficulty?. Memory and Cognition, 33: 727733. [Crossref], [PubMed], [Web of Science ®] [Google Scholar]). In the current study we investigate whether patterns of gaze and gaze aversion during children's explanations can predict when they are in states of transient knowledge (Karmiloff-Smith 1992 Karmiloff-Smith, A. 1992. Beyond modularity: A developmental perspective on cognitive science, Cambridge, MA: MIT Press.  [Google Scholar]; Goldin-Meadow, Kim, & Singer, 1999 Goldin-Meadow, S., Kim, S. and Singer, M. 1999. What the teacher's hands tell the student's mind about math. Journal of Educational Psychology, 91: 720730. [Crossref], [Web of Science ®] [Google Scholar]). In Study 1, thirty-three 6-year-old children completed a balance beam task (Pine & Messer, 2000 Pine, K. J. and Messer, D. 2000. The effects of explaining another's actions on children's implicit theories of balance. Cognition and Instruction, 18: 3754. [Taylor & Francis Online] [Google Scholar]). Children who improved the representational level of their explanations (Karmiloff-Smith, 1992 Karmiloff-Smith, A. 1992. Beyond modularity: A developmental perspective on cognitive science, Cambridge, MA: MIT Press.  [Google Scholar]) of this task with training used more GA than those who did not. Practical implications for teaching and for recognizing transient knowledge states are discussed. In Study 2, fifty-nine 6-year-olds took part and completed a “Time Task” along with periodic teaching intervention to improve their comprehension of telling the time. Some children improved immediately, whereas others did so more gradually. The gradual improvers showed the highest levels of GA, particularly when they were at an intermediate level of performance.  相似文献   
8.
Abstract

This paper discusses Alain Badiou's dissolution of theology in light of his equation of ontology and mathematics and his separation of the infinite from the one. I argue, however, that Badiou leaves open a place for theology, and I exploit this for theology by drawing on the work of the American mathematician Cassius Jackson Keyser. Keyser suggests a more positive relationship between mathematics, ontology, and theology, and his claim that theology is the science of idealization allows us to begin to think about how one might go about doing philosophical theology after Badiou.  相似文献   
9.
The potential impact on psychological well-being of working in the caring professions in the aftermath of trauma and disaster has been recognized for many years, with terms such as burnout, compassion fatigue, and vicarious traumatization coined to describe stress-related conditions. Although prevalent, these conditions do not affect all workers in the field. Various studies have investigated potential risk and protective factors. It is argued that the outcomes of this research should be used to guide practical interventions in the workplace designed to minimize stress-related problems. A framework that incorporates interventions at the primary, secondary, and tertiary prevention levels is outlined, and research investigating the efficacy of interventions at each of these levels is recommended.  相似文献   
10.
Gardikiotis, Martin and Hewstone ( 2004 ) investigated the representation of majority versus minority headlines in five British newspapers over a period of five years. They found majority headlines to be twice as frequent as minority headlines. However, they identified headlines with the search words ‘majority’ and ‘minority’ only in the singular form. We argue that in the public discourse the minority, but not the majority is likely to be represented in the plural. Replicating their study with the search words in both singular and plural forms, the strong difference they reported disappeared and minority headlines proved to be just as frequent as majority headlines. However, whereas majority is used almost exclusively in the singular, minority is used almost as frequently in both the singular and plural forms. These findings suggest a more complex social representation in real‐life contexts on the minority pole of the minority‐majority dimension compared to the majority pole. Implications of this asymmetric relationship are discussed in terms of communication theory, social representations theory, and experimental research on minority‐majority groups (in particular in‐group homogeneity). Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
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