排序方式： 共有62条查询结果，搜索用时 46 毫秒
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David L. Cede?o Marjorie A. Jones Jon A. Friesen Mark W. Wirtz Luz Amalia Ríos Gonzalo Taborda Ocampo 《Journal of Science Education and Technology》2010,19(5):434-437
At the Universidad de Caldas, Manizales, Colombia, we used their new computer facilities to introduce chemistry graduate students
to biochemical database mining and quantum chemistry calculations using freeware. These hands-on workshops allowed the students
a strong introduction to easily accessible software and how to use this software to begin to explore computer modeling. Each
workshop was scheduled for 2 h and each included a tutorial exercise to familiarize the students with the main menus and features
of the software. In addition, accompanying lectures and practical laboratory sections were provided. Both courses were taught
in Spanish although the written instructions were in English. This was not a problem since these students have a comfort level
with reading English. Student feedback following these workshops was highly enthusiastic and positive. This international
collaborative will impact both the teaching and research goals for this cohort of graduate students. 相似文献
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Gonzalo Farias David Muñoz de la Peña Fabio Gómez-Estern Luis De la Torre Carlos Sánchez Sebastián Dormido 《Interactive Learning Environments》2016,24(7):1456-1476
Automatic evaluation is a challenging field that has been addressed by the academic community in order to reduce the assessment workload. In this work we present a new element for the authoring tool Easy Java Simulations (EJS). This element, which is named automatic evaluation element (AEE), provides automatic evaluation to virtual and remote laboratories built with EJS by using the server application Goodle grading management system (GMS). The integration of both tools entitles a professor to create interactive virtual and remote laboratories and automatically evaluate the work of their students. As a test bed two case studies are presented; a non-linear controller design virtual laboratory used in an advanced control master course and a servomechanism virtual laboratory used in an undergraduate basic control course. 相似文献
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Gonzalo Miguez Bridget McConnell Cody W. Polack Ralph R. Miller 《Learning & behavior》2018,46(3):265-280
This report is part of a larger project examining associative interference as a function of the nature of the interfering and target associations. Lick suppression experiments with rats assessed the effects of context shifts on proactive outcome interference by latent inhibition (LI) and Pavlovian conditioned inhibition (CI) treatments on subsequently trained Pavlovian conditioned excitation treatment. LI and CI were trained in Context A during Phase 1, and then excitation treatment was administered in Context B during Phase 2, followed by tests for conditioned excitation in Contexts A, B, or C. Experiment 1 preliminarily established our LI and CI treatments and resulted in equally retarded acquisition of behavioral control when the target cue was subsequently trained as a conditioned excitor and tested in Context A. However, only CI treatment caused the target to pass a summation test for inhibition. Centrally, Experiment 2 consisted of LI and CI treatments in Context A followed by excitatory training in Context B. Testing found low excitatory control by both LI and CI cues in Context A relative to strong excitatory control in Context B, but CI treatment transferred to Context C more strongly than LI treatment. Experiment 3 determined that LI treatment failed to transfer to Context C even when the number of LI trials was greatly increased. Thus, first-learned LI appears to be relatively context specific, whereas first-learned CI generalizes to a neutral context. These observations add to existing evidence that LI and CI treatments result in different types of learning that diverge sharply in transfer to a novel test context. 相似文献
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AbstractSalvador López Gómez was a great exponent of gymnastics in Spain in the nineteenth and the twentieth century. His role as a teacher, a writer and even as a law developer who promoted gymnastics deserves a detailed study. For that reason, through primary sources of this era and, specially, papers from López Gómez himself, this paper depicts his long professional career, his conception of gymnastics and the constant efforts, not always properly rewarded, that he made for its social respect and acknowledgement during that time. 相似文献
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Adding Compression to Block Addressing Inverted Indexes 总被引：8，自引：1，他引：7
Gonzalo Navarro Edleno Silva de Moura Marden Neubert Nivio Ziviani Ricardo Baeza-Yates 《Information Retrieval》2000,3(1):49-77
Inverted index compression, block addressing and sequential search on compressed text are three techniques that have been separately developed for efficient, low-overhead text retrieval. Modern text compression techniques can reduce the text to less than 30% of its size and allow searching it directly and faster than the uncompressed text. Inverted index compression obtains significant reduction of its original size at the same processing speed. Block addressing makes the inverted lists point to text blocks instead of exact positions and pay the reduction in space with some sequential text scanning.In this work we combine the three ideas in a single scheme. We present a compressed inverted file that indexes compressed text and uses block addressing. We consider different techniques to compress the index and study their performance with respect to the block size. We compare the index against three separate techniques for varying block sizes, showing that our index is superior to each isolated approach. For instance, with just 4% of extra space overhead the index has to scan less than 12% of the text for exact searches and about 20% allowing one error in the matches. 相似文献
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Retroactive cue interference refers to situations in which a target cue X is paired with an outcome in phase 1 and a nontarget cue Z is paired with the same outcome in phase 2, with less subsequent responding to X being seen as a result of the phase 2 training. Two conditioned suppression experiments with rats were conducted to determine whether retroactive cue interference is similarly modulated by a manipulation that influences retroactive outcome interference (e.g., extinction). Both experiments used an ABC renewal-like design in which phase 1 training, phase 2 training, and testing each occurred in different contexts. Experiment 1 found that training the target association in multiple contexts without altering the number of training trials during phase 1 decreased retroactive cue interference (i.e., increased responding consistent with the target association). Experiment 2 found that training the interfering association in multiple contexts without altering the number of interference trials during phase 2 increased retroactive cue interference (i.e., decreased responding consistent with the target association). The possibility of similar mechanisms underlying cue interference and outcome interference is discussed. 相似文献
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Counselor training that does not attend to dynamics of cultural differences and oppression can run the risk of promoting false empathy that serves the voyeuristic purpose of the counselor rather than achieving accurate empathy for the client. In this article, we discuss the differences between true and false empathy and how Whiteness, racial identity and culture, and classroom dynamics can impact the ability to engage in cultural empathy development. We present a model for cultural empathy training that attends to each of these dynamics. 相似文献
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Nieves R. Brisaboa Antonio Fariña Gonzalo Navarro José R. Paramá 《Information processing & management》2011
In recent years, new semistatic word-based byte-oriented text compressors, such as Tagged Huffman and those based on Dense Codes, have shown that it is possible to perform fast direct search over compressed text and decompression of arbitrary text passages over collections reduced to around 30–35% of their original size. Much of their success is due to the use of words as source symbols and a byte-oriented target alphabet. This approach broke with traditional statistical compressors, which use characters as source symbols and a bit-oriented target alphabet. 相似文献