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21.
Xi Zhang Jorik Blaas Charl Botha Peter Reischig Alberto Bravin Joris Dik 《Journal of Cultural Heritage》2012,13(2):221-225
Computer tomography (CT) technology has greatly contributed to the feasibility and convenience of detecting and visualizing the internal material constitution and geometrical fabrication of museum artifacts. This paper presents a case study of 3D virtual reconstruction for the CT-acquisition-based study of a cultural heritage artifact. It documents the complete procedure, including the preprocessing, segmentation and visualization of the data by providing coarse interactive exploration and integrated high-quality renderings. A parallel aim achieved was to use open source tools and free software for segmentation and visualization, thus providing full transparency of the adopted methodology and 3D visualization methods, and a cost effective solution for ordinary CPU-based PC users. Furthermore, the challenges of the large data volumes involved have been addressed using preprocessing, a segmentation scheme and linked front-to-back management to keep interaction and high-quality rendering available, thus achieving corresponding demands. 相似文献
22.
The role of writing in learning from analogies 总被引：1，自引：0，他引：1
Perry D. Klein Sabrina Piacente-Cimini Laura A. Williams 《Learning and Instruction》2007,17(6):595-611
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Montgomery KS Cubera S Belcher C Patrick D Funderburk H Melton C Fastenau M 《The Journal of perinatal education》2005,14(2):26-35
Women with a multiple pregnancy have unique learning needs in preparing for birth. This paper explores the issues relevant to women with a multiple pregnancy to support a positive birth experience. One of the foundations of childbirth education and nursing care is to provide the individual woman and her family with knowledge regarding the birth process, what to expect, and how to cope with labor and birth. Education also focuses on caring for the newborns after birth and how to manage in the early days at home. However, traditional childbirth education classes, which meet in a series of evenings or Saturdays, may not meet the needs of women with a multiple pregnancy. In addition, because of the differences in care that exist for women with a multiple pregnancy, new paradigms for childbirth education are needed to meet the learning needs of these families. The purpose of this paper is to provide information to the childbirth educator on the differences in care women with a multiple pregnancy can expect and to suggest strategies to meet the childbirth education needs of these families. 相似文献
24.
Krell Moritz Redman Christine Mathesius Sabrina Krüger Dirk van Driel Jan 《Research in Science Education》2020,50(6):2305-2329
Research in Science Education - Scientific reasoning competencies are highlighted in science education policy papers and standard documents in various countries around the world and pre-service... 相似文献
25.
Diana Raufelder Nicola Neumann Martin Domin Robert C. Lorenz Tobias Gleich Sabrina Golde Lydia Romund Anne Beck Frances Hoferichter 《Child development》2021,92(6):2213-2223
Students’ sense of belonging presents an essential resource for academic and health outcomes, whereas social exclusion at school negatively impacts students’ well-being and academic performance. Aiming to understand how feelings of school-related belonging and exclusion shape the structural brain development, this study applied longitudinal questionnaire-based data and MRI data from 71 adolescent students (37 females, Mage at t1 = 15.0; t2 = 16.1 years). All were white participants from Germany. Voxel-based morphometry revealed only an association of social exclusion (and not of belonging) and gray matter volume in the left anterior insula: From t1 to t2, there was less gray matter decrease, the more social exclusion students perceived. School-related social exclusion and disturbed neurodevelopment are thus significantly associated. 相似文献
26.
The major cognitive deficit of children with attention-deficit/hyperactivity disorder (ADHD) is impaired executive function (EF), a cognitive component that some theorists believe to be the primary substrate for the general intelligence (g) factor. We review the constructs of g and EF and the relevant research findings on ADHD. We then analyze the results of a battery of diverse tests, including measures of EF, administered to 123 boys with ADHD. The correlations among the EF measures, two well-accepted measures of IQ, and the g factor extracted from the entire battery are trivial at best. These results are discussed in the context of collateral evidence supporting the independence of g and EF and its clinical and theoretical implications. 相似文献
27.
Rats were initially trained in a symbolic delayed matching-to-sample task either to discriminate hedonic samples that consisted of food or no food or to discriminate tone samples that differed in frequency and location. The retention functions for both the hedonic and tone samples were asymmetric, with forgetting of the food sample or the high-frequency tone occurring more rapidly than forgetting of the no-food sample or the low-frequency tone. Next, many-to-one (MTO) training was given in which tone samples were added for the rats initially trained with hedonic samples, and hedonic samples were added for the rats initially trained with tone samples. For both groups, a food sample and a tone sample (tone-F) were associated with responding to one lever (e.g., stationary), and a no-food sample and a different tone sample (tone-NF) were associated with responding to the alternative lever (e.g., moving). During retention testing, we found equivalent forgetting for the food and no-food samples, but forgetting of the tone-F sample occurred more rapidly than forgetting of the tone-NF sample. This is the first MTO study to suggest that rats, like pigeons, may use hedonic samples as the basis for the common coding of nonhedonic samples in MTO delayed matching. 相似文献
28.
The Youth Olympic Games (YOG) were introduced and officially inaugurated in Singapore in 2010, constituting the first new Olympic event to be staged since the 1924 Winter Olympic Games. The structure of the YOG is based on the model of the European Youth Olympic Festival, which was introduced three decades ago. Being a new international sports event targeting young athletes, a major innovation of the YOG is its unique Culture and Education Programme (CEP). To date, very little literature deals with the CEP and its influence on the athletes' overall experience. Thus, the objective of this study was to give a deeper insight into the athletes' perception of the CEP. A survey of 662 participating athletes as well as 6 focus groups with 43 athletes was conducted during the first 2012 Winter Youth Olympic Games in Innsbruck, Austria. The results of the focus groups corroborated the results of the survey: young athletes participating in the CEP liked it very much; nevertheless, the tight training and competition schedule represented an issue for many athletes. The findings of this study underline the necessity to plan the CEP more carefully and to raise interest in the CEP among coaches and Chefs de Mission. 相似文献
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Seth J. Schwartz Sabrina Des Rosiers Shi Huang Byron L. Zamboanga Jennifer B. Unger George P. Knight Hilda Pantin José Szapocznik 《Child development》2013,84(4):1355-1372
This study examined longitudinal acculturation patterns, and their associations with family functioning and adolescent risk behaviors, in Hispanic immigrant families. A sample of 266 Hispanic adolescents (Mage = 13.4) and their primary parents completed measures of acculturation, family functioning, and adolescent conduct problems, substance use, and sexual behavior at five timepoints. Mixture models yielded three trajectory classes apiece for adolescent and parent acculturation. Assimilated adolescents reported the poorest family functioning, but adolescent assimilation negatively predicted adolescent cigarette smoking, sexual activity, and unprotected sex indirectly through family functioning. Follow‐up analyses indicated that discrepancies between adolescent and parent family functioning reports predicted these adolescent outcomes. Results are discussed regarding acculturation trajectories, adolescent risk behavior, and the mediating role of family functioning. 相似文献
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