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221.
Herein, we report the case of a 42-year-old woman, hospitalized in a French tertiary hospital for a relapse of a chronic enteropathy, who was found on admission to have no detectable serum transferrin. Surprisingly, she only exhibited mild anaemia. This atransferrinemia persisted for two months throughout her hospitalization, during which her haemoglobin concentration remained broadly stable. Based on her clinical history and evolution, we concluded to an acquired atransferrinemia secondary to chronic undernutrition, inflammation and liver failure. We discuss the investigations performed in this patient, and hypotheses regarding the relative stability of her haemoglobin concentration despite the absence of detectable transferrin.  相似文献   
222.
This article investigates the social justice dispositions of teachers and principals in secondary schools as inferred from their metaphoric expressions. Drawing on a Bourdieuian account of disposition, our focus is the use of metaphor as a methodological tool to identify and reveal these otherwise latent forces within our data. Our analysis shows evidence of redistributive, recognitive and activist conceptions of social justice. We argue that these three social justice dispositions may be insufficient to meaningfully address persisting inequalities in the school system and that a capability-based social justice disposition – absent in our data – is needed. We conclude by highlighting that: social justice dispositions can change; a valid interpretation of metaphors requires ‘contextual stabilization’; and metaphors for social justice are differently constructed in different contexts, influenced by the different social, cultural and material conditions of schools.  相似文献   
223.
The economic potential of language tourism is manifested in the number of summer courses organised by some countries. Even if learning the language is the main motivation for travelling, the tourists also take into account other characteristics when choosing a destination, such as the location, the safety, the quality of the language or the cultural attractions. The objective of the current study is to analyse the profile of language tourists according to their motivations to study Spanish and their perception of the destination and to examine this profile as a driver of tourists’ expenditures. Specifically, this work analyses a sample of tourists who attended Spanish courses in language schools and academies in the city of Valladolid (Spain). The analysis of their expenditure during the stay reveals that expenditure is affected by visitors’ motivations and perceptions.  相似文献   
224.
    
This paper explores socio-ecological factors and their interplay that emerge from a qualitative study and influence adolescents' physical activity and sport participation. A total of 13 boys and 7 girls active and inactive adolescents, from years 12 and 13 and different types of school (state and private), participated in semi-structured interviews. It followed a purposeful sampling selection from participants who participated in a previous larger study on physical activity levels. Findings highlight the influence of personal and social interplay, such as perceived competence, obesity and teasing from peers, and new social demands and personal preferences in adolescents' (dis)engagement in physical activity and sport. They also stand out how social and environmental factors affect their participation, such as family, boy/girlfriends, physical education and rural/urban places of residence. These factors appear to have an important impact on the construction of (in)active identities during late adolescence. Policy makers, exercise professionals and educators should be aware of these factors in order to improve health promotion strategies and social policies. Some recommendations are also indicated in the paper.  相似文献   
225.
    
The struggle with fraction learning in kindergarten through Grade 12 in the United States is a persistent problem and one of the major stumbling blocks to succeeding in higher mathematics. Research into this problem has identified several areas where students commonly struggle with fractions. While there are many theories of fraction learning, none of the research on these theories employs samples large enough to test theories at scale or nuanced enough to demonstrate how learning unfolds over time during instructional activities based on these theories. The work reported here uses learning analytics methods with fine-grained log data from an online fraction game to unpack how splitting (i.e. partitioning a whole into equal-sized parts) impacts learning. Study 1 demonstrated that playing the game significantly improved students’ fraction understanding. In addition, a cluster analysis suggested that exploring splitting was beneficial. Study 2 replicated the learning results, and a cluster analysis showed that compared to early game play, later game play showed more optimal splitting strategies. In addition, in looking at the types of transitions that were possible between a student’s early cluster categorization and later cluster categorization, we found that some types of transitions were more beneficial for learning than others.  相似文献   
226.
The authors examined whether motivational goals influenced the participation and performance of low-achieving students during collaborative problem solving with a high-achieving partner. Thirty-five pairs of 4th- and 5th-grade students were randomly assigned a set of instructions designed to induce students to adopt a learning goal or a performance goal. The following day, the students were individually given a posttest on problems similar to those worked on collaboratively. The low-achieving students given learning-goal instructions performed better on the posttest problems and perceived their partner's competence as more similar to their own than did the low-achieving students given performance-goal instructions. No differences in overall amount or level of low achievers' participation during collaborative problem solving were observed. Implications of the findings for the use of peer learning in heterogeneous classrooms are discussed.  相似文献   
227.
    
Neuroanatomy is difficult for psychology students because of spatial visualization and the relationship among brain structures. Some technologies have been implemented to facilitate the learning of anatomy using three-dimensional (3D) visualization of anatomy contents. Augmented reality (AR) is a promising technology in this field. A mobile AR application to provide the visualization of morphological and functional information of the brain was developed. A sample of 67 students of neuropsychology completed tests for visuospatial ability, anatomical knowledge, learning goals, and experience with technologies. Subsequently, they performed a learning activity using one of the visualization methods considered: a 3D method using the AR application and a two-dimensional (2D) method using a textbook to color, followed by questions concerning their satisfaction and knowledge. After using the alternative method, the students expressed their preference. The two methods improved knowledge equally, but the 3D method obtained higher satisfaction scores and was more preferred by students. The 3D method was also more preferred by the students who used this method during the activity. After controlling for the method used in the activity, associations were found between the preference of the 3D method because of its usability and experience with technologies. These results found that the AR application was highly valued by students to learn and was as effective as the textbook for this purpose.  相似文献   
228.
    
Hong Kong has introduced a senior intake admission scheme which is similar to the US model of credit transfer from community college programmes to university bachelor programmes. The study aimed to assess the outcomes, in terms of generic capabilities, of introducing a senior intake articulation scheme to a bachelor of nursing curriculum in Hong Kong. One hundred and seventy-four nursing students completed and returned the Student Engagement Questionnaire. The senior intake students reported significantly higher scores in creative thinking, active learning, teaching for understanding, feedback to assist learning, and relationship between teachers and students than the mainstream students. Self-managed learning and relationship with other students were positively and significantly related to academic performance. The senior intake students appeared to adjust well in university education. Greater effort should be made to nurture their relationship with other students and a review of the denseness of the mainstream curriculum is warranted.  相似文献   
229.
This study is a randomized controlled trial of a 12-week community-based group parenting intervention (“CASITA”) in Lima, Peru. CASITA improved neurodevelopment in a pilot study of 60 Peruvian children and subsequently scaled to 3,000 households throughout the district. The objective of this study was to assess intervention effectiveness when implemented at scale. A total of 347 children ages 6–20 months (52.7% male, 100% identified as “mestizo”) at risk for developmental difficulties were randomized to immediate or delayed CASITA. At 3 months after enrollment, the immediate arm showed significantly higher overall development, based on the Extended Ages and Stages Questionnaire and Home Observation for Measurement of the Environment scores (Cohen’s ds = .36 and .31, respectively). Programs demonstrably effective at scale could help address children’s development risks worldwide.  相似文献   
230.
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