在GEM检索记录中挖掘学习课件词汇的使用状况

元数据的应用需要开发适于所应用主题领域的规范词表来满足用户的检索需求，但目前对用户用什么词来进行查找却知之甚少。为了了解数字化教育图书馆用户在检索中使用什么样的词来进行查找，本文作者利用检索记录挖掘的方法来进行研究。在初步分析了40多万条检索记录中所含的100多万个检索词之后，作者重点分析了规范词在检索中被用户使用的情况，并且对比分析了哪些非规范词被用户使用.作者发现用户在查找信息的过程中对规范词的使用频率大大超过了非规范词的使用频率。对非规范词使用的进一步分析不仅可以提供补充更新规范词的来源，而且也可以为分析规范词非规范词之间建立对应的浯义关系提供重要的信息来源。     

Relational capital wealth in an organizational context

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.     

School and community factors involved in Chilean students’ perception of school safety

Identifying and understanding predictors of school safety perceptions is important due to its consequences for students. However, it is not clear what school‐related factors most contribute to explaining students’ perception of school safety, and how they relate to community‐related factors such as neighborhood safety. The purpose of this study was to understand the factors associated with Chilean elementary and middle school students’ perceptions of school safety. We used a sample of 5,455 students from low socioeconomic status public schools, and analyzed the predictive value of peer physical and verbal victimization; teacher and school staff victimization; teacher's social support; and perception of safety in the students’ neighborhoods on perceptions of school safety. Findings showed that although different forms of school violence, particularly peer physical victimization and physical and sexual victimization from teachers and school staff, contribute to students’ perception of school safety, the highest contribution came from students perceiving their neighborhoods as unsafe. In contrast, teacher social support contributed to increased levels of perceived school safety. We discuss the need for school‐based interventions that address physical victimization and engage teachers in prosocial and less punitive approaches to foster a positive and safe school climate, and in fostering school–community partnerships.     

Velocity field control of robot manipulators by using only position measurements

In the velocity field control approach the robot motions are specified through a vectorial function that assigns the desired velocity to each point of the configuration space. In other words, a velocity field defines the robot desired velocity in the operational space as a function of its current position. In this paper is introduced a new algorithm to solve the velocity field control formulation in the robot operational space. The proposed approach assumes only joint position measurements and is based on a hierarchical structure that results of using the kinematic control concept and a joint velocity controller. To estimate the joint velocity, nonlinear filtering of the joint position is used.     

Loneliness,personal and social well-being: towards a conceptualization of the effects of cyberbullying / Soledad,bienestar social e individual: hacia una conceptualización de los efectos del cyberbullying

This paper examines the effects of cyberbullying using a mixed method approach, by combining interviews, focus groups and a survey of 7,000 students. In the inductive stage, and following an axial coding analysis, we identified 153 concepts related to conflicts, which were divided into three thematic units to explain the greater impact of cyberbullying: (1) social distance; (2) privacy exposure; and (3) range of the material. The survey concluded that: (1) the victims of bullying and cyberbullying present higher levels of loneliness and lower levels of social well-being compared to non-bullied students, and those who were bullied in both channels presented higher levels of loneliness and lower levels of social well-being than those who were bullied in only one of them; (2) the victims of cyberbullying showed lower levels of individual well-being compared with those who had never been bullied, as with those who suffered face-to-face bullying. This difference was explained by testimonies indicating that most of the cyberbullying was related to intimate content, which has a higher impact on image perception.     

Mexican Educators Survey on Anatomical Sciences Education and a Review of World Tendencies

Anatomical sciences curricula have been under constant reform over the years, with many countries having to reduce course hours while trying to preserve laboratory time. In Mexico, schools have historically been autonomous and unregulated, and data regarding structure and methods are still lacking. A national survey was sent by the Mexican Society of Anatomy to 110 anatomical sciences educators. The questionnaire consisted of 50 items (open and multiple choice) for gross anatomy, microscopic anatomy, neuroanatomy, and embryology courses in medical schools across Mexico. A clinical approach was the most common course approach in all disciplines. Contact course hours and laboratory hours were higher in Mexican anatomy education compared to other countries, with the highest reported contact hours for embryology (133.4 ± 44.1) and histology (125 ± 33.2). There were similar contact hours to other countries for gross anatomy (228.5 ± 60.5). Neuroanatomy course hours (43.9 ± 13.1) were less than reported by the United States and similar to Saudi Arabia and higher than the United Kingdom. Dissection and microscopy with histological slides predominate as the most common laboratory activities. Traditional methods prevail in most of the courses in Mexico and only a few educators have implemented innovative and technological tools. Implementation of new methods, approaches, and curricular changes are needed to enhance anatomical sciences education in Mexico.     

A Comparison of Item Exposure Control Methods in Computerized Adaptive Testing

Two new methods for item exposure control were proposed. In the Progressive method, as the test progresses, the influence of a random component on item selection is reduced and the importance of item information is increasingly more prominent. In the Restricted Maximum Information method, no item is allowed to be exposed in more than a predetermined proportion of tests. Both methods were compared with six other item-selection methods (Maximum Information, One Parameter, McBride and Martin, Randomesque, Sympson and Hetter, and Random Item Selection) with regard to test precision and item exposure variables. Results showed that the Restricted method was useful to reduce maximum exposure rates and that the Progressive method reduced the number of unused items. Both did well regarding precision. Thus, a combined Progressive-Restricted method may be useful to control item exposure without a serious decrease in test precision.     

The Origins of Football in Spain: From the First Press Appearance to the Constitution of the First Clubs (1868–1903)

This research focuses on the origins of football in Spain and seeks to show how and where it was introduced in the country, to comprehend the historical context, and to understand why it took roots so rapidly despite the rivalry with the well-established tradition of bullfighting. The period of study spans from 1868 (first news piece on football in Spain) to 1903 (celebration of the first football championship in the country). The methodology focused primarily on identifying the primary sources and selecting the secondary sources, followed by the interpretative analysis and the mapping of football associations created in Spain in the sport’s early days. The large urban cities led the process of creating football clubs from 1889: Barcelona (61), Madrid (15), and Bilbao (9) steered the process of legitimization and institutionalization of football in the country. In the last 11 years of the nineteenth century (1889–1899), 29 clubs were created in 12 different cities. In the first four years of the twentieth century (1900–1903), a further 103 clubs mushroomed all over the country. Thus a total of 132 clubs were founded between 1889 and 1903 in Spain, which laid the necessary foundations for the implantation and legitimization of football.     

Impact of a sustained Cooperative Learning intervention on student motivation

Background: Cooperative Learning has been recently defined as a true pedagogical model. Moreover, in a recent review Casey and Goodyear reported that it can help physical education promote the four basic learning outcomes: physical, cognitive, social and affective.

Purpose: The main goal was to investigate the impact of a sustained Cooperative Learning intervention on student motivation. The second goal was to assess students’ perceptions of the Cooperative Learning class climate. Finally, the third goal was to explore students’ feelings and thoughts after experiencing Cooperative Learning in physical education for an extended period of time.

Participants and settings: 249 students (grades 8–11) and 4 teachers enrolled in 4 different high schools agreed to participate. Each school administration allocated several class groups to each teacher based on its necessities. Therefore, intact physical education classes played a part in this research project. They were randomly distributed into an experimental group with 137 students (mean age 13.91?±?1.76 years), which experienced 3 consecutive cooperative learning units, and a comparison group with 112 students (mean age 13.41?±?1.25 years), which experienced a traditional teaching approach during the same length of time.

Research design: A pre-test, post-test, quasi-experimental, comparison group design was followed.

Data collection: Prior to and at the end of the intervention programme, all participating students were asked to complete a questionnaire, which included the Perceived Locus of Causality Scale and the subscale ‘Cooperative Learning’ of the Perceived Motivational Climate Questionnaire. At post-test, participants in the experimental group were also asked to: ‘Describe your feelings, your thoughts and your ideas on the three Cooperative Learning units that you just experienced in physical education’.

Data analysis: Quantitative data was analysed using SPSS 22.0, while MAXQDA 11 was used to assist with qualitative data management.

Findings: Quantitative data showed an increase in intrinsic motivation and identified regulation only in the experimental group. This group also increased its perceptions of a Cooperative Learning class climate. Qualitative data analysis of the students’ responses after experiencing Cooperative Learning on a sustained basis produced five major themes: cooperation, relatedness, enjoyment, novelty and disappointment. All these findings are in line with Vallerand's hierarchical model of motivation, where social factors (i.e. Cooperative Learning) influence psychological mediators (i.e. relatedness), which mediate over the different types of motivation (i.e. intrinsic motivation) and finally lead to different outcomes (i.e. enjoyment).

Conclusion: Cooperative Learning applied on a sustained basis can increase the most self-determined types of motivation, intrinsic motivation and identified regulation, in secondary education students. Students’ perceptions after experiencing Cooperative Learning for a long period of time reflected four positive ideas: cooperation, relatedness, enjoyment and novelty and a negative one: disappointment. Both the positive and the negative ideas should be considered when implementing Cooperative Learning in physical education, because students experience them.     

A Kantian view of Suits’ Utopia: ‘a kingdom of autotelically-motivated game players’

In this paper, I engage the debate on Suits’ theory of games by providing a Kantian view of Utopia. I argue that although the Kantian aspects of Suits’ approach are often overlooked in comparison to its Socratic-Platonic aspects, Kant’s ideas play a fundamental role in Suits’ proposal. In particular, Kant’s concept of ‘regulative idea’ is the basis of Suits’ Utopia. I regard Utopia as Suits’ regulative idea on game playing. In doing so, I take Utopia to play a double role in Suits’ theory of games. First, it highlights the primary condition of possibility of game-playing, namely, the lusory attitude. Second, it provides a normative criterion that serves as a critical principle to evaluate instances of game playing and as a counterfactual assumption that makes game playing possible. I provide further support for my Kantian interpretation of Suits’ Utopia by bringing to light the anthropological assumptions upon which Utopia is built. In doing so, I argue that both Suits’ theory of games, in general, and his Utopia, in particular, lay out the conditions of possibility of game playing, not an analysis on the life most worth living.