排序方式： 共有80条查询结果，搜索用时 62 毫秒
71.
Carmen De Maio Giuseppe Fenza Vincenzo Loia Sabrina Senatore 《Information processing & management》2012
In recent years, knowledge structuring is assuming important roles in several real world applications such as decision support, cooperative problem solving, e-commerce, Semantic Web and, even in planning systems. Ontologies play an important role in supporting automated processes to access information and are at the core of new strategies for the development of knowledge-based systems. Yet, developing an ontology is a time-consuming task which often needs an accurate domain expertise to tackle structural and logical difficulties in the definition of concepts as well as conceivable relationships. This work presents an ontology-based retrieval approach, that supports data organization and visualization and provides a friendly navigation model. It exploits the fuzzy extension of the Formal Concept Analysis theory to elicit conceptualizations from datasets and generate a hierarchy-based representation of extracted knowledge. An intuitive graphical interface provides a multi-facets view of the built ontology. Through a transparent query-based retrieval, final users navigate across concepts, relations and population. 相似文献
72.
Duranovic Mirela Gangl Melanie Finke Sabrina Smajlagic Senka Landerl Karin 《Reading and writing》2020,33(8):2073-2095
Reading and Writing - A substantial body of research has noted morphological priming effects in visual word recognition in deep orthographies, but it is still unclear whether similar effects exist... 相似文献
73.
Sabrina Vandevelde Hilde Van Keer Emmelien Merchie 《The Journal of educational research》2017,110(2):113-139
The authors explore the effects of student tutoring as an approach to provide support on self-regulated learning (SRL) to fifth- and sixth-grade students with a low socioeconomic or immigrant background. In total, 401 Flemish (Belgium) students participated. A quasi-experimental study with pretest, posttest, and retention test control group design was used, combining teacher ratings, self-report questionnaires, and think-aloud protocols. The teacher rating results show a significantly positive effect from pretest to posttest for the experimental condition, but this was not maintained at the retention test. The questionnaire and think-aloud results reveal no significant effects on students’ SRL. However, differential effects depending on students’ motivational profile were found. This study illustrates the complexity of promoting SRL among primary school children with a low socioeconomic or immigrant background, recommending further research into conditions and factors influencing the effectiveness of student tutoring programs promoting SRL. 相似文献
74.
Danielle S. Molnar Sabrina Thai Melissa Blackburn Dawn Zinga Gordon L. Flett Paul L. Hewitt 《Child development》2023,94(1):254-271
This prospective longitudinal study evaluated changes in psychological distress among adolescents, pre-pandemic to intra-pandemic, the extent to which within-person and between-person differences in trait multidimensional perfectionism were associated with such changes, and the role of stress in explaining associations between perfectionism and psychological distress. Adolescents (N = 187; 80% female; 78% White, 7% Asian Canadian, 2% Indigenous Peoples in Canada, 2% Black or African Canadian, 2% Latin Canadian, or 9% Other; Mage = 17.96 years) completed online surveys assessing perfectionism (i.e., self-oriented perfectionism and socially prescribed perfectionism), depression, anxiety, and stress pre-pandemic (i.e., March 12, 2020 or earlier) and during Ontario, Canada's first (i.e., March 13, 2020 to July 24, 2020) and second (December 26, 2020 to February 7, 2021) government-mandated lockdowns. Between-person differences and within-person changes in multidimensional trait perfectionism were associated with increases in psychological distress and perceived stress. Perceived stress served as an intermediary pathway linking multidimensional trait perfectionism to psychological distress during the pandemic. 相似文献
75.
Ferrari Joseph R. Keane Sabrina M. Wolfe Raymond N. Beck Brett L. 《Research in higher education》1998,39(2):199-215
Students from two colleges (n = 546) differing in admission selectivity completed measures of academic procrastination and excuses. Procrastination was higher among students at the selective college than students at the nonselective college. Academic procrastination was motivated by task aversiveness for students at the selective college and by fear of task failure and fear of social disapproval for students at the nonselective college. At the nonselective college only, procrastinators compared to nonprocrastinators reported more often using both legitimate and fraudulent excuses in college and during the current semester. Participants reported that excuses were self-generated for the purpose of gaining more assignment time and that most instructors did not require proof for excuses. The characteristics of courses and instructors likely to promote excuse-making by both procrastinators and nonprocrastinators also were examined. These results reflect the need by administrators and personnel to consider individual and situational differences when implementing student-centered intervention programs. 相似文献
76.
Silvio Lorenzetti Fabian Ammann Sabrina Windmüller Ramona Häberle Sören Müller Micah Gross 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(1):63-74
As hill jumps are very time-consuming, ski jumping athletes often perform various imitation jumps during training. The performed jumps should be similar to hill jumps, but a direct comparison of the kinetic and kinematic parameters has not been performed yet. Therefore, this study aimed to correlate 11 common parameters during hill jumps (Oberstdorf Germany), squat jumps (wearing indoor shoes), and various imitation jumps (rolling 4°, rolling flat, static; jumping equipment or indoor shoes) on a custom-built instrumented vehicle with a catch by the coach. During the performed jumps, force and video data of the take-off of 10 athletes were measured. The imitation and squat jumps were then ranked. The main difference between the hill jumps and the imitation and squat jumps is the higher maximal force loading rate during the hill jumps. Imitation jumps performed on a rolling platform, on flat ground were the most similar to hill jumps in terms of the force–time, and leg joint kinematic properties. Thus, non-hill jumps with a technical focus should be performed from a rolling platform with a flat inrun with normal indoor shoes or jumping equipment, and high normal force loading rates should be the main focus of imitation training. 相似文献
77.
Within the context of yoga’s increasing popularity, the prevailing view that yoga is ‘good for everyone’ is often perpetuated by participants. This view is derived from popular media portrayals and activities, as well as scientific research purporting yoga’s health benefits for all citizens. This paper accordingly investigates these dominant claims reproduced about yoga practise in the United States using a qualitative study involving five practitioners. We specifically invoke Michel Foucault’s concepts of discourse and governmentality to interrogate how yogic ‘truths’ are negotiated, taken up, and reproduced by several participants in the San Francisco area. Five in depth semi-structured interviews were conducted with a diverse demographic sample of yoga participants. Our findings suggest that these various individuals invested in and reproduced the ideals of social inclusion and multicultural diversity with the accompanying view that yoga operated as a community or ‘family’. The practitioners subsequently acknowledged specific barriers and instances of exclusive practises within yoga and its communities. Yet, in some cases the participants countered that these perceptions of exclusion and barriers to practise could be overcome by individual choice-making; this latter view implicates a specific mode of neo-liberal self-governance. Our analysis therefore suggests that the yoga participants invested in and reproduced ideals of individualism and meritocracy relative to normative neo-liberal yoga discourses. 相似文献
78.
Learning Environments Research - With the rapid progress of technological development, self-efficacy in reference to digital devices (i.e., information and computer technology [ICT] self-efficacy)... 相似文献
79.
König Sabrina Stang-Rabrig Justine Hannover Bettina Zander Lysann McElvany Nele 《European Journal of Psychology of Education - EJPE》2023,38(2):841-864
Stereotype threat (ST) is a potential explanation for inequalities in language competencies observed between students from different language backgrounds. Language competencies are an important prerequisite for educational success, wherefore the significance for investigation arises. While ST effects on achievement are empirically well documented, little is known about whether ST also impairs learning. Thus, we investigated vocabulary learning in language minority elementary school students, also searching for potential moderators. In a pre-post design, 240 fourth-grade students in Germany who were on average 10 years old (MAge = 9.92, SD = 0.64; 49.8% female) were randomly assigned to one of four experimental conditions: implicit ST, explicit ST without threat removal before posttest, explicit ST with threat removal before posttest, and a control group. Results showed that learning difficult vocabulary from reading two narrative texts was unaffected by ST. Neither students’ identification with their culture of residence and culture of origin nor stereotyped domain of reading were moderators. The findings are discussed with regard to content and methodological aspects such that a motivation effect might have undermined a possible ST effect. Implications for future research include examining the question at what age children become susceptible to ST and whether students have internalized negative stereotypes about their own group, which could increase the likelihood of ST effects occurring.
相似文献80.
Sabrina J. Ashwell Patricia K. Baskin Stacy L. Christiansen Sara A. DiBari Annette Flanagin Tracy Frey Racquel Jemison Mia Ricci 《Learned Publishing》2023,36(1):94-99
- Inclusive language will make scholarly publishing more accurate and more respectful, and it has the potential to help authors reach a wider audience.
- JAMA and the JAMA Network journals, the American Chemical Society and the Coalition for Diversity and Inclusion in Scholarly Communications have free guides on inclusive language, formatting and images.
- The guides provide principles and rationale, as well as examples of preferred language, in order to equip people with knowledge to choose the most inclusive words even as terminology preferences change.