Memoria incidental e intencional en preescolares     

Miguel Angel González  Francisco Valle 《Infancia y Aprendizaje》2013,36(27-28):223-235

Resumen

En general, se ha mantenido que los niños en edad preescolar recuerdan mejor en tareas de aprendizaje incidental que en las de aprendizaje intencional. En este estudio se ha reexaminado esta cuestión y se ha visto que no existe tal diferencia. Niños de 3 a 5 reconocieron de modo semejante una serie de objetos y dibujos, tanto si se les había advertido previamente que debían recordar como si no. El estudio ha demostrado asimismo, y en concordancia con otros trabajos, que el recuerdo no es independiente del nivel de conocimiento ni de la edad del niño. En virtud de estos resultados se hace una interpretación de la memoria infantil acorde con la teoría de los niveles de procesamiento.  相似文献   

那些曾经，溢过阳光     

Angel 《中学生电脑》2008,(6):22

阳光温暖得让人有些沉醉。故事的开始似乎总是这样一个浪漫的午后,有某些事物在继续奔跑,延伸。带走一些忧伤,似乎也带来一些快乐。一体育课上绕着操场一圈圈地跑着,豆子从后面跑上来,拉着我的手径直从操场中间穿过,坐在一个完全暴露在阳光下的斜坡上,因为豆子说她冷得快见马克思了。于是我们坐在水泥地上,也没有想  相似文献   

Intermittent hypoxia exposure in a hypobaric chamber and erythropoietin abuse interpretation   总被引：1，自引：0，他引：1  

Abellan R  Ventura R  Remacha AF  Rodríguez FA  Pascual JA  Segura J 《Journal of sports sciences》2007,25(11):1241-1250

The aim of this study was to assess the effect of intermittent hypoxia exposure on direct and indirect methods used to evaluate recombinant human erythropoietin (rhEPO) misuse. Sixteen male triathletes were randomly assigned to either the intermittent hypoxia exposure group (experimental group) or the control normoxic group (control group). The members of the experimental group were exposed to simulated altitude (from 4000 to 5500 m) in a hypobaric chamber for 3 h per day, 5 days a week, for 4 weeks. Blood and urine samples were collected before and after the first and the final exposures, and again 2 weeks after the final exposure. While serum EPO significantly increased after the first [from a mean 8.3 IU x l(-1) (s = 3.2) to 16.6 IU x l(-1) (s = 4.7)] and final exposures [from 4.6 IU x l(-1) (s = 1.4) to 24.8 IU x l(-1) (s = 9.3)], haemoglobin, percentage of reticulocytes, and soluble transferrin receptor were not elevated. Second-generation ON/OFF models (indirect rhEPO misuse detection) were insensitive to intermittent hypoxia exposure. The distribution of the urinary EPO isoelectric profiles (direct rhEPO misuse detection) was altered after intermittent hypoxia exposure with a slight shift towards more basic isoforms. However, those shifts never resulted in misinterpretation of results. The intermittent hypoxia exposure protocol studied did not produce any false-positive result for indirect or direct detection of rhEPO misuse in spite of the changes in EPO serum concentrations and urinary EPO isoelectric profiles, respectively.  相似文献   

Book reviews     

Aida Medina Adams  Margie Kitano  Mickey Soudack Angel 《Roeper Review》2013,35(3):203-205

Mamchur, C. (1996). A teacher's guide to cognitive type theory and learning style. Alexandria.VA: Association for Supervision and Curriculum Development (132 pp., ISBN‐0871202786)

Tomlinson, C. A. (1999). The differentiated classroom: Responding to the needs of all learners. Alexandria, VA: Association for Supervision and Curriculum Development (132 pp., $21.95 pb, ISBN 0–87120–342–1).

Reis, Sally M. (1998). Work Left Undone: Choices and Compromises of Talented Females. PO Box 320, Mansfield Center, Conn.: Creative Learning Press (427pp., $19.95 paper, ISBN:0–936386–76–2).

Dettmer, P., & Landrum, M. (Eds.). (1998). Staff development: The key to effective gifted education programs. Waco, TX: Prufrock Press (125 pp., $19.95 pb, ISBN‐1–882664–41–8). [A publication of The National Association for Gifted Children, Washington, DC].  相似文献   

Review of The 2009 UNESCO framework for cultural statistics     

Belén Usero  Jesús Angel del Brío 《Cultural Trends》2011,20(2):193-197

The main goal of the 2009 UNESCO Framework for Cultural Statistics is to facilitate comparisons through a common understanding of culture and the use of standardized definitions and classifications. This review contains an in-depth analysis of the 2009 Framework's contribution to the existing literature on measuring the economic impact of culture, and it concludes by suggesting future avenues of research. By achieving international consensus on the concept of culture and its measurement, we will be able to progress in our studies of the competitive advantages that allow cultural firms to generate wealth nowadays.  相似文献   

Criss-cross heart three-dimensional printed models in medical education: A multicenter study on their value as a supporting tool to conventional imaging     

Israel Valverde  Gorka Gomez  Nick Byrne  Shafkat Anwar  Miguel Angel Silva Cerpa  Maria Martin Talavera  Kuberan Pushparajah  Maria Nieves Velasco Forte 《Anatomical sciences education》2022,15(4):719-730

The utility of three-dimensional (3D) printed models for medical education in complex congenital heart disease (CHD) is sparse and limited. The purpose of this study was to evaluate the utility of 3D printed models for medical education in criss-cross hearts covering a wide range of participants with different levels of knowledge and experience, from medical students, clinical fellows up to senior medical personnel. Study participants were enrolled from four dedicated imaging workshops developed between 2016 and 2019. The study design was a non-randomized cross-over study to evaluate 127 participants' level of understanding of the criss-cross heart anatomy. This was evaluated using the scores obtained following teaching with conventional images (echocardiography and magnetic resonance imaging) versus a 3D printed model learning approach. A significant improvement in anatomical knowledge of criss-cross heart anatomy was observed when comparing conventional imaging test scores to 3D printed model tests [76.9% (61.5%–87.8%) vs. 84.6% (76.9%–96.2%), P < 0.001]. The increase in the questionnaire marks was statistically significant across all academic groups (consultants in pediatric cardiology, fellows in pediatric cardiology, and medical students). Ninety-four percent (120) and 95.2% (121) of the participants agreed or strongly agreed, respectively, that 3D models helped them to better understand the medical images. Participants scored their overall satisfaction with the 3D printed models as 9.1 out of 10 points. In complex CHD such as criss-cross hearts, 3D printed replicas improve the understanding of cardiovascular anatomy. They enhanced the teaching experience especially when approaching medical students.  相似文献   

Risk markers for disappearance of pediatric Web resources.     

Angel A Hernández-Borges  Alejandro Jiménez-Sosa  Maria L Torres-Alvarez de Arcaya  Pablo Macías-Cervi  Maria A Gaspar-Guardado  Ana Ruíz-Rabaza 《Journal of the Medical Library Association》2005,93(3):374-380

OBJECTIVES: The authors sought to find out whether certain Webometric indexes of a sample of pediatric Web resources, and some tests based on them, could be helpful predictors of their disappearance. METHODS: The authors performed a retrospective study of a sample of 363 pediatric Websites and pages they had followed for 4 years. Main measurements included: number of resources that disappeared, number of inbound links and their annual increment, average daily visits to the resources in the sample, sample compliance with the quality criteria of 3 international organizations, and online time of the Web resources. RESULTS: On average, 11% of the sample disappeared annually. However, 13% of these were available again at the end of follow up. Disappearing and surviving Websites did not show differences in the variables studied. However, surviving Web pages had a higher number of inbound links and higher annual increment in inbound links. Similarly, Web pages that survived showed higher compliance with recognized sets of quality criteria than those that disappeared. A subset of 14 quality criteria whose compliance accounted for 90% of the probability of online permanence was identified. Finally, a progressive increment of inbound links was found to be a marker of good prognosis, showing high specificity and positive predictive value (88% and 94%, respectively). CONCLUSIONS: The number of inbound links and annual increment of inbound links could be useful markers of the permanence probability for pediatric Web pages. Strategies that assure the Web editors' awareness of their Web resources' popularity could stimulate them to improve the quality of their Websites.  相似文献   

Relational capital wealth in an organizational context     

Angel?Eustorgio?RiveraEmail author  Francisco?Javier?Carrillo 《知识管理研究与实践》2016,14(4):434-444

This paper introduces a new relational capital framework providing a relationships typology between significant agents in an organizational context and offers an integrated approach to understand relationships as a key element of organizations. Some theoretical contributions in literature on strategy and organization are considered. Following this trend, our paper proposes a general relationships classification considering the four essential relationship properties and shows that these are fundamental for the development and existence of K-events during organizational activities. Based on the elements of K-events during a relationship between significant agents, we propose that the quality of any relationship, at any level of analysis, relies on the development and measurement of certain combinations of variables that are embedded in four different categories. This study explicitly shows some possible theoretical segmentation criteria or theoretical dichotomies for analyzing the concept of relationship between agents. For theorists, it provides a conceptual base for the relationships typology, and for practitioners it identifies key elements for optimal value exchanges.  相似文献   

A simple and inexpensive enteric-coated capsule for delivery of acid-labile macromolecules to the small intestine     

Darren S. Miller  Anne Michelle Parsons  John Bresland  Paul Herde  Duc Minh Pham  Angel Tan  Hung-yao Hsu  Clive A. Prestidge  Tim Kuchel  Rezaul Begg  Syed Mahfuzul Aziz  Ross N. Butler 《Journal of Zhejiang University. Science. B》2015,16(7):586-592

Understanding the ecology of the gastrointestinal tract and the impact of the contents on the host mucosa is emerging as an important area for defining both wellness and susceptibility to disease. Targeted delivery of drugs to treat specific small intestinal disorders such as small bowel bacterial overgrowth and targeting molecules to interrogate or to deliver vaccines to the remote regions of the small intestine has proven difficult. There is an unmet need for methodologies to release probes/drugs to remote regions of the gastrointestinal tract in furthering our understanding of gut health and pathogenesis. In order to address this concern, we need to know how the regional delivery of a surrogate labeled test compound is handled and in turn, if delivered locally as a liquid or powder, the dynamics of its subsequent handling and metabolism. In the studies we report on in this paper, we chose ¹³C sodium acetate (¹³C-acetate), which is a stable isotope probe that once absorbed in the small intestine can be readily measured non-invasively by collection and analysis of ¹³CO₂ in the breath. This would provide information of gastric emptying rates and an indication of the site of release and absorptive capacity. In a series of in vitro and in vivo pig experiments, we assessed the enteric-protective properties of a commercially available polymer EUDRAGIT®L100-55 on gelatin capsules and also on DRcaps®. Test results demonstrated that DRcaps®coated with EUDRAGIT®L100-55 possessed enhanced enteric-protective properties, particularly in vivo. These studies add to the body of knowledge regarding gastric emptying in pigs and also begin the process of gathering specifications for the design of a simple and cost-effective enteric-coated capsule for delivery of acid-labile macromolecules to the small intestine.  相似文献   

Evens and Odds in Newtonian Collision Mechanics     

Angel  Leonard 《The British journal for the philosophy of science》2005,56(1):179-188

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