Adquisición de morfemas del español     

Miguel Pérez Pereira  Dolores Singer 《Infancia y Aprendizaje》2013,36(27-28):205-221

Resumen

Se han aplicado dos pruebas de palabras reales y palabras artificiales (semejante a la de Berko, 1958) a 109 niños hispano-parlantes de tres a seis años de edad, a fin de establecer la evolución en el uso de morfemas de plural, aumentativos y diminutivos, gerundio, pretérito imperfecto de indicativo y pretérito indefinido. Los resultados indican un progreso importante entre los tres y los cuatro años, siendo la curva posterior del desarrollo más suave. Se establece un orden de dificultad de estos morfemas, y se realiza un análisis de los errores cometidos, encontrándose también sobrerregularizaciones con verbos reales irregulares. Se extraen implicaciones acerca del proceso de adquisición de morfemas.  相似文献   

Fenómenos transicionales en el acceso al lenguaje     

Miguel Pérez  Josefa Castro 《Infancia y Aprendizaje》2013,36(43):13-36

Resumen

Se ha estudiado durante 6 meses el desarrollo de 4 sujetos, que tenían 7, 12, 18 y 21 meses de edad al comienzo de la investigación. Para ello se ha grabado en video a los sujetos mensualmente, durante una hora, en su hogar. También se le han aplicado pruebas de las escalas de desarrollo de Uzgiris y Hunt (1975) para determinar su desarrollo cognitivo.

Sobre los 9 meses los niños ya son capaces de comunicar algunas intenciones, mediante gestos y vocalizaciones. Las funciones que cubren son progresivamente sustituidas y ampliadas por producciones que ya son lingüísticas. La eclosión del lenguaje se manifiesta después de que los niños realizan avances importantes en su desarrollo cognitivo, en el establecimiento de relaciones entre producciones fonéticas y significados intencionales, y en sus conductas comunicativas. Se concluye que, si bien la aparición del lenguaje es preparada por estas formas transicionales y logros anteriores, ninguna de ellas aisladamente permite explicar el empleo sistemático de palabras, que supone un nivel cualitativamente nuevo en la competencia de los niños, resultado de una síntesis creadora de logros precedentes.  相似文献   

Retrospective on educational testing and assessment in the 20th century   总被引：3，自引：2，他引：1  

Marguerite M. Clarke  George F. Madaus  Catherine L. Horn  Miguel A. Ramos 《课程研究杂志》2013,45(2):159-181

Over the last 100 years, the ever-increasing demand for testing as a measure of educational reform has created a very profitable market for the US testing industry. We follow the growth of this market since the 1900s in two different, but related, ways. First, we discuss some of the technical developments that have encouraged the use of standardized testing in general and contributed to the growth of the commercial testing industry. Second, we attempt to quantify the expansion of the testing marketplace during the 20th century by tracking several indirect indices of growth over time. We conclude that although technical innovations may have contributed to the growth of the US testing marketplace, they do not necessarily lead to better tests or better outcomes for those who use them. There is a need to more carefully monitor the effects of these tests on teaching and learning in general, particularly when the tests are used in high-stakes contexts.  相似文献   

The banality of simulated evil: designing ethical gameplay     

Miguel Sicart 《Ethics and Information Technology》2009,11(3):191-202

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我国图情档学科关于文化信息数字资源整合的研究——以博物馆研究为视角     

王萌  龙乐思  朱嘉麒 《图书馆杂志》2020,(4):80-91

我国图情档学科认为博物馆是文化信息数字资源整合的主体之一。博物馆中以其展品为代表的文化信息资源对满足公众多样化的文化需求、增强中华文化竞争力起着重要作用。本文借助Citespace分析软件,通过对作者、机构、关键词可视化图谱的绘制,识别出我国图情档学科下以博物馆为主题词的科研文献成果概况、科研机构分布及研究热点词与其研究发展趋势。经分析得知,该学科下以博物馆为主题的研究可以分为两个阶段:第一阶段(1996-2008年)主要是博物馆文献资源的开发与利用、博物馆与图书馆文献资源的开发与利用、博物馆古籍保护管理工作以及古籍文献等主题。第二阶段(2009-2019年)主要探讨三馆馆际合作的资源整合路径、数字资源整合理论模式与合作机制等的研究,并结合相关文献内容,深入探讨以博物馆为主题的研究重点,基于此,我国图情档学科应以博物馆中丰富多样的文化信息资源为视角,开展涵盖档案馆、图书馆、博物馆的全种类、全范围的全文化信息数字资源整合。最后,本文围绕数字资源整合这一具有影响力的研究热点,探讨如何从图情档学科的角度出发,有效地涵盖博物馆,构建以图书馆、档案馆、博物馆三馆为主体的数字资源整合模式与机制,建立为公众文化精神需求服务的信息共享平台。  相似文献   

Cardiorespiratory fitness and telomere length: a systematic review     

Adilson Marques  Élvio Rubio Gouveira  Miguel Peralta  João Martins  Joed Venturini  Duarte Henriques-Neto 《Journal of sports sciences》2020,38(14):1690-1697

ABSTRACT

This study aimed to systematically review the association between cardiorespiratory fitness and telomere length (TL). Studies were identified from searches in Cochrane Central, PubMed, Scopus, Sportdiscus, and Web of Science databases through July 2019. Eligibility criteria included: cross-sectional, prospective, and experimental study design; outcomes included TL; results expressed the relationship between cardiorespiratory fitness and TL; studies published in English, Portuguese, or Spanish. A total of 20 articles met the inclusion criteria. Sixteen studies (80%) reported a significant relationship between cardiorespiratory fitness, or training load, and TL. Better cardiorespiratory fitness or a large cardiorespiratory training load are associated with an increase in TL. Although, TL was related to regular moderate-to-vigorous aerobic exercise and cardiorespiratory fitness in older healthy humans, it was not related to cardiorespiratory fitness among young subjects. There seems to be a positive and significant relationship between cardiorespiratory fitness and TL, mainly among middle age and older people, which emphasizes the importance of cardiorespiratory fitness for healthy ageing. Therefore, endurance exercise and better cardiorespiratory fitness may regulate the TL in middle age and older adults, slowing the cellular ageing process.  相似文献   

Looking Back,Moving Forward: An Assessment of LIS Internship Programme in Developing Country's Perspective     

Muhammad Arif  José Miguel Baptista Nunes  Saima Kanwal 《The Journal of Academic Librarianship》2018,44(5):595-602

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Identifying top relevant dates for implicit time sensitive queries     

Ricardo?CamposEmail authorView author&#;s OrcID profile  Ga?l?Dias  Alípio?Mário?Jorge  Célia?Nunes 《Information Retrieval》2017,20(4):363-398

Despite a clear improvement of search and retrieval temporal applications, current search engines are still mostly unaware of the temporal dimension. Indeed, in most cases, systems are limited to offering the user the chance to restrict the search to a particular time period or to simply rely on an explicitly specified time span. If the user is not explicit in his/her search intents (e.g., “philip seymour hoffman”) search engines may likely fail to present an overall historic perspective of the topic. In most such cases, they are limited to retrieving the most recent results. One possible solution to this shortcoming is to understand the different time periods of the query. In this context, most state-of-the-art methodologies consider any occurrence of temporal expressions in web documents and other web data as equally relevant to an implicit time sensitive query. To approach this problem in a more adequate manner, we propose in this paper the detection of relevant temporal expressions to the query. Unlike previous metadata and query log-based approaches, we show how to achieve this goal based on information extracted from document content. However, instead of simply focusing on the detection of the most obvious date we are also interested in retrieving the set of dates that are relevant to the query. Towards this goal, we define a general similarity measure that makes use of co-occurrences of words and years based on corpus statistics and a classification methodology that is able to identify the set of top relevant dates for a given implicit time sensitive query, while filtering out the non-relevant ones. Through extensive experimental evaluation, we mean to demonstrate that our approach offers promising results in the field of temporal information retrieval (T-IR), as demonstrated by the experiments conducted over several baselines on web corpora collections.  相似文献   

Do faster swimmers spend longer underwater than slower swimmers at World Championships?     

Santiago Veiga  Andreu Roig  Miguel A. Gómez-Ruano 《European Journal of Sport Science》2016,16(8):919-926

The main objectives of the present research were (1) to examine the relationships between the distances travelled underwater during the start and turn segments with swimming race performance at the elite level and (2) to determine if the individualised-distance start and turn parameters affect the overall race performance. The race parameters of the 100 and 200?m events during 2013 World Championships were measured by an innovative image-processing system (InThePool^® 2.0). Overall, 100?m race times were largely related to faster start velocities in men's breaststroke and freestyle events. Conversely, overall, 200?m race times were largely related to longer starting distances in the women's butterfly events, to longer turn distances in men's and women's backstroke and women's butterfly events and to shorter turn distances in women's freestyle events. Changes on the start or turn velocities could represent moderate time improvements in most of the 100?m events, whereas modifications on the start or turn distances (especially in the last turn) could provide elite swimmers with time improvements of practical importance on the 200?m events. The evaluation of races by individualised-distance parameters should be provided to elite swimmers in order to decide the most appropriate race segment configuration for each event.  相似文献   

Interdisciplinary therapy changes superoxide dismutase activity and adiponectin in obese adolescents: a randomised controlled trial     

João Elias Dias Nunes  Heitor Santos Cunha  Zulmária Rezende Freitas  Ana Maria Caixeta Nogueira  Ana Raimunda Dâmaso  Foued Salmen Espindola 《Journal of sports sciences》2016,34(10):945-950

The objective of this study is to evaluate the effect of interdisciplinary therapy in the parameters of the oxidative stress and the anti-inflammatory responses of obese adolescents. We selected 57 participants, who were randomly divided into 2 groups: interdisciplinary therapy group and a control group. After 6 months of intervention, 17 participants of the interdisciplinary therapy group and 8 of the control group returned for re-evaluation. The interdisciplinary therapy group participated in a treatment with 4 weekly sessions of exercise, a weekly group therapy session and a weekly nutritional education session. Blood parameters of oxidative stress and anti-inflammatory response were evaluated. The results demonstrated that there were significant increases in the interdisciplinary therapy group for superoxide dismutase activity (6.56 ± 3.22 to 11.40 ± 7.49) and ferric-reducing antioxidant potential concentration (532.91 ± 106.48 to 573.25 ± 112.57), although adiponectin levels did not reduce (40.9 ± 29.34 to 49.05 ± 41.22). A significant decrease in nitrite levels was also found (14.23 ± 8.48 to 11.45 ± 6.05). In the control group, significant reduction was found in adiponectin (31.56 ± 18.88 to 18.01 ± 11.66). This study suggests that interdisciplinary therapy for 6 months was effective in improving the anti-inflammatory responses and the antioxidant defences in obese adolescents.  相似文献