关于一类偶数阶偏微分方程的未知边界问题

在未知边界区域提出一类偶数阶偏微分方程及初边值条件,并推出解的先验模估计,且用先验模估计证明了解的惟一性.     

Engendering a culture of thinking in a culture of performativity: the challenge of mediating tensions in the Singaporean educational system

Among the major policies that have been implemented to ensure its continued success, Thinking Schools, Learning Nation (TSLN) has been described as the ‘big bang of educational reforms’ in Singapore. However, while the policy aims to develop critical thinkers in school leavers, the corporatisation of education in the shape of structures such as the school excellence model seems to be at odds with TSLN. This paper argues that these structures unwittingly engender a culture of performativity among schools, marginalising the central outcome of its initiative that entails developing a culture of thinking and thinkers. The tension is further exacerbated by the larger rationalities that have shaped Singapore and the pragmatic and instrumental philosophy which underpins its educational system. The tensions generated by the clash between intended (culture of thinking) and engendered culture (culture of performativity) present the challenge of mediation for the system on its path to realising TSLN.     

A meta-analysis of the impact of mobile learning on mathematics achievement

Education and Information Technologies - The technological developments of the twenty-first century have enabled the emergence of alternative teaching-learning models and instructional tools. One...     

Metaphors as a reflection of middle school students' perceptions of school: A cross-cultural analysis

This study analyzes the perceptions of Turkish and American middle school students of school and schooling by examining the metaphors they produce. A total of 18 American and 24 Turkish students were interviewed as part of this study. The results show differences in the participants' perceptions of schooling by culture. Turkish participants perceived the school environment as family-like, care-giving, psychologically nurturing, educationally exemplary, and physically appealing. School was also seen as a fundamental prerequisite in the preparation for life and the possibility of employment, promising upward social mobility as an adult. Overall, while some American participants perceived school as a wild, crowded, chaotic, boring, painful, regulated environment in which students must learn to survive, others see it as a place of joy, caring, involvement, and learning. The study also indicates that metaphors are useful tools in understanding how students as real actors of school make sense of schooling and their experiences in school.     

The Effects of the Preschool Inclusion Program on Teacher Outcomes in Turkey

The aim of this study was to evaluate the effects of a teacher training program on teacher outcomes. The teachers’ knowledge and attitudes regarding inclusion, classroom management strategies, and their relationships with children both with and without disabilities were evaluated using self-report instruments. In addition, their classroom behaviors were evaluated by independent observers. The teacher education program included a variety of topics related to inclusion and effective strategies for inclusive classrooms. The data were collected prior to the education, after the completion of the program, and 6 months afterwards. The results indicated that the teacher program seemed to have moderate-to-large effects on all teacher outcomes, but the changes in their classroom behaviors were minimal.     

Knowledge of Sets: a Didactic Phenomenon

International Journal of Science and Mathematics Education - This paper examines a didactic phenomenon, a perception that the elements of sets have a common property, e.g. that {1, 2, 3} and {a, b,...     

When the child gets in the news? A case study on the national written media in Turkey

The main purpose of this study is to analyze news stories regarding children in the national print media in the last five years using top eight newspapers in terms of circulation and evaluate these news stories based on the Convention on the Rights of the Child, which was issued by the UN and signed by Turkey. The research was undertaken as a case study. The study data were collected from top eight newspapers in terms of circulation between 2010 and 2014 in order to reveal when and how newspapers at national level represent children and the scientific content of impressions in the national media. Results show that children appear in the national media in mostly negative cases. In conclusion, it was observed in this study, children’s rights to life, development, protection, and participation were violated at both national and international levels. In this sense, news reflects the truth about “children’s rights violations”. However, the way that children appear in news and reflection in media constitute a secondary children’s rights violation.     

干旱胁迫对不同玉米品种叶片膜透性的影响

对不同玉米品种进行干旱处理,对叶片含水量、土壤含水量、叶片质膜透性进行测定．结果表明,土壤干旱胁迫条件下,玉米叶片含水量下降,叶片质膜透性上升;随着胁迫时间的延长,即土壤含水量的降低,叶片质膜透性不断的增加,其中新实1号的变化幅度最小,而叶片含水量则随之不断的减少,与叶片质膜透性的结果相符．这说明幼苗期新实1号的抗旱能力较强．因此,对叶片含水量、土壤含水量、叶片质膜透性的测定可以作为幼苗期抗旱鉴定的重要指标．     

Readiness of teachers for change in schools

Theorizing on the role of teacher attitudes in change effectiveness, this study examined the predictive value of context (trust), process (social interaction, participative management and knowledge sharing) and outcome (job satisfaction and workload perception) variables for cognitive, emotional and intentional readiness of teachers for change. The study was designed as predictive correlational study. Data were collected from 1649 elementary teachers. Hierarchical linear regression analysis results indicated that background and context variables are weak predictors of readiness for change (RFC), while job outcome and process variables emerged as stronger predictors of RFC. The central role of job satisfaction and trust in predicting RFC suggests that readiness cannot be limited to times of change; rather, it is closely related to total experiences of teachers on their job. As a result, for a more effective management of teachers’ attitudes towards change leadership needs to hold a broader temporal and contextual understanding rather than demonstrating limited interventions during times of change.     

Psychological Adaptation of Turkish Students at U.S. Campuses

The number of Turkish citizens entering the U.S. for their studies is growing more rapidly than almost any other group. The purpose of the current study was to investigate how acculturation factors affect psychological adaptation of Turkish students in the U.S. One hundred and twenty-four Turkish students participated in the study. Regression analyses revealed that social support and self-esteem were predictors of psychological adjustment. Implications suggest that Turkish students, as with other international students as previous research has suggested, should have a strong network of both co-national students and other social connections.