Information retrieval with geographical references. Relevant documents filtering vs. query expansion     

Miguel . García-Cumbreras  Jos M. Perea-Ortega  Manuel García-Vega  L. Alfonso Urea-Lpez 《Information processing & management》2009,45(5):605-614

This is a thorough analysis of two techniques applied to Geographic Information Retrieval (GIR). Previous studies have researched the application of query expansion to improve the selection process of information retrieval systems. This paper emphasizes the effectiveness of the filtering of relevant documents applied to a GIR system, instead of query expansion. Based on the CLEF (Cross Language Evaluation Forum) framework available, several experiments have been run. Some based on query expansion, some on the filtering of relevant documents. The results show that filtering works better in a GIR environment, because relevant documents are not reordered in the final list.  相似文献   

An unexpected world population variation of MCT1 polymorphism 1470T > A involved in lactate transport     

Federico Onali  Carla M. Calò  Myosotis Massidda  Miguel M. Álvarez-Álvarez 《European Journal of Sport Science》2018,18(10):1376-1382

A common missense mutation (1470T > A) in gene SLC16A1 responsible for an amino acid substitution in protein MCT1 has been associated with differential lactate transport and hence, differences in physical performance and muscle injuries in relation to physical exercise. This study describes, for the first time, the worldwide variation of MCT1 variant 1470T > A at an intra- and inter-continental level. Two thousand five hundred and four individual genotypes of 26 populations clustered in 5 population groups have been analysed with data downloaded from the public database 1000 Genomes Phase 3 Browser. Several parameters of population differentiation and structure have been explored as well as selection signatures in the whole gene. Allele T, the common variant, shows extremely high values in Sub-Saharan African groups (frequencies 86–91%) as compared with the remaining world regions (69–49%). TT genotype also predominates in African groups, showing significant differences with the rest of world populations. In view of the evidence that the TT genotype is associated with clinical implications and a better predisposition to sprint/power performances, we suggest that the high presence of the TT genotype in African populations should be taken into account in future association studies at both medical and sports fields.  相似文献   

Building arguments: key to collaborative scaffolding     

M. Cáceres  M. Nussbaum  M. Marroquín  S. Gleisner  J. T. Marquínez 《Interactive Learning Environments》2018,26(3):355-371

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The pedagogical foundations of primary school inspector Leonor Serrano (1914–1939)     

Miguel Ortells Roca  Juan Traver Martí 《Paedagogica Historica: International Journal of the History of Education》2018,54(3):338-354

This article aims to reconstruct the pedagogy of Leonor Serrano, a Spanish school inspector working and developing her theories between 1914 and 1939. We use an interrogative-analytical methodology based on content analysis of her texts to reconstruct her educational theory. The theoretical deductive elements are uncovered in the analysis of the answers Leonor Serrano gives to the “basic questions of education”, issues that provide the bases for the scientific field of the theory of education to define a specific pedagogy and are identified through a process of historical-educational review. The study outcome is an explanatory narrative. The paper ends with a discussion of the method and the results.  相似文献   

Stress and coping in primary caregivers of children with a disability: a qualitative study using the Lazarus and Folkman Process Model of Coping     

Tara  Kelso  Dr  Davina French  Miguel  Fernandez 《Journal of Research in Special Educational Needs》2005,5(1):3-10

Twenty-six primary caregivers of children with a disability took part in focus groups or interviews to discuss their perceptions of stress and the coping process. Research was framed within the Process Model of Stress and Coping ( Lazarus & Folkman, 1984 ). Findings provided a snapshot of the common stresses encountered by caregivers and indicate the need to consider individual experiences when determining the impact of stressful events. Eight common stressors were identified, as well as novel constructions of stressful experiences. Results suggested that a range of coping resources and strategies were employed. The study also indicated that the majority of participants adapted well to the requirements of raising a child with a disability. The current study indicates the value of using qualitative methods, particularly with unique populations, to inform policy and service provision.  相似文献   

Training Future Scientists: Predicting First-year Minority Student Participation in Health Science Research     

Sylvia Hurtado  M. Kevin Eagan  Nolan L. Cabrera  Monica H. Lin  Julie Park  Miguel Lopez 《Research in higher education》2008,49(2):126-152

Using longitudinal data from the UCLA Cooperative Institutional Research Program (CIRP) and Your First College Year (YFCY) surveys, this study examines predictors of the likelihood that science-oriented students would participate in a health science undergraduate research program during the first year of college. The key predictors of participation in health science research programs are students’ reliance on peer networks and whether campuses provide structured opportunities for first-year students even though only 12% of freshmen in the sample engaged in this activity. These experiences are particularly important for Black students. The findings inform efforts to orient students at an early stage, particularly under-represented minorities, toward biomedical and behavioral science research careers.

Sylvia HurtadoEmail:

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大学治理:责任与财政   总被引：1，自引：0，他引：1  

Miguel Angel Escotet Spain Director at School of Graduate  Continuing Education  Universidad de Deusto 《教育研究》2008,(8)

大学的演变主要体现在大学的结构、治理、管理系统、拨款机制方面以及知识、形式与内容的多样化。大学在公众参与和权威主义方面已经从一个极端走向了另一个极端。大学的未来取决于社会的引导和内部的共生。高等教育已经从以学习者为中心转向以教学和管理人员的共生结构为中心,高等教育经费需要多样化的渠道。大学的持续变革对于学校内部机制的公平、效力、效率、相关性,以及学生、教授、研究者和管理者等大学成员的道德规范提出了要求。  相似文献   

Causal and predictive-value judgments,but not predictions,are based on cue-outcome contingency     

Vadillo MA  Miller RR  Matute H 《Learning & behavior》2005,33(2):172-183

In three experiments, we show that people respond differently when they make predictions as opposed to when they are asked to estimate the causal or the predictive value of cues: Their response to each of those three questions is based on different sets of information. More specifically, we show that prediction judgments depend on the probability of the outcome given the cue, whereas causal and predictivevalue judgments depend on thecue-outcome contingency. Although these results might seem problematic for most associative models in their present form, they can be explained by explicitly assuming the existence of postacquisition processes that modulate participants’ responses in a flexible way.  相似文献   

Recognition of prior learning: the participants’ perspective     

Marta C. Miguel  José H. Ornelas  João P. Maroco 《Studies in Continuing Education》2016,38(2):179-194

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The effect of the SCIS'S “Relativity” unit on the child's conception of space     

Joseph Nussbaum 《科学教学研究杂志》1979,16(1):45-51

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