A survey on Turkish elementary school students’ environmental friendly behaviours and associated variables   总被引：1，自引：0，他引：1  

Elvan Alp  Hamide Ertepinar  Ceren Tekkaya  Ayhan Yilmaz 《Environmental Education Research》2008,14(2):129-143

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Learner-friendly textbooks: Chemistry texts based on a constructivist view of learning     

Uğur Taşdelen  Fitnat Köseoğlu 《Asia Pacific Education Review》2008,9(2):136-147

In this study, the use of inquiry methods, learning cycles, a conceptual change model and analogy in creating alternative science texts was discussed. An alternative text on the topic of acids and bases was created by integrating the methods and models discussed in this paper. The alternative text and a sample of a traditional text taken from a textbook, which is still used in Turkish high schools, were given to two groups, totaling 42 pre-service teachers—the alternative text was given to an experimental group and the traditional text to a control group—in an experimental setting and their understandings of acids and bases were compared. In addition, in the second step of the study, the pre-service teachers read both texts and indicated their preferences in terms of interest, understandability and helpfullness.  相似文献   

Chebyshev polynomial solutions of systems of higher-order linear Fredholm-Volterra integro-differential equations     

Ay?egül Akyüz-Da?c?o?lu  Mehmet Sezer 《Journal of The Franklin Institute》2005,342(6):688-701

A Chebyshev collocation method, an expansion method, has been proposed in order to solve the systems of higher-order linear integro-differential equations. This method transforms the IDE system and the given conditions into the matrix equations via Chebyshev collocation points. By merging these results, a new system which corresponds to a system of linear algebraic equations is obtained. The solution of this system yields the Chebyshev coefficients of the solution function. Some numerical results are also given to illustrate the efficiency of the method. Moreover, this method is valid for the systems of differential and integral equations.  相似文献   

Serum Ischemia-Modified Albumin in Preterm Babies with Respiratory Distress Syndrome     

Hasan Kahveci  Cuneyt Tayman  Fuat Laoğlu  Hüseyin Tugrul Celik  Nazan Kavas  Ömer Kılıç  Salih Aydemir 《Indian journal of clinical biochemistry : IJCB》2016,31(1):38-42

Infants with respiratory distress syndrome (RDS) may suffer from severe hypoxia, asphyxia. In this study, we aimed to evaluate serum ischemia-modified albumin (IMA) level as a diagnostic marker for hypoxia in preterm infants with RDS. Thirty-seven premature newborns with RDS were allocated as the study group and 42 healthy preterm neonates were selected as the control group. IMA was measured as absorbance unit (ABSU) in human serum with colorimetric assay method which is based on reduction in albumin cobalt binding. IMA levels were significantly higher in neonates with RDS as compared to the control group (P < 0.001). Cut-off value of IMA (ABSU) was 0.72, the sensitivity level was 91.9 %, the specificity was 78.6 %, positive predictive value was 79.1 % and negative predictive value was 91.7 % at RDS. Area under curve values was 0.93 (P < 0.001; 95 % CI, 0.88–0.98) in the receiver operating characteristic curve. We concluded that elevated blood IMA levels might be accepted as a useful marker for hypoxia in newborn with RDS.  相似文献   

精神损害与精神损害赔偿     

张磊  李小鲁 《重庆师专学报》2007,26(2):43-46

精神损害赔偿制度虽然在我国起步较晚，但是发展却非常迅速，几乎人人都知晓精神损害或精神损害赔偿，司法实践中的案例也是层出不穷。但在生活口语中，“精神损害”和“精神损害赔偿”往往是同时表达同一个意思，即要么是表示受到了精神损害，要么是表示需要适用精神损害赔偿制度；我们不必对大众在法律术语的使用上做过高要求，但在理论研究上剐’有必要对这两个概念进行明确的区分，以避免理论上的混乱和立法上的瑕疵。  相似文献   

网络环境下学习策略个体差异研究   总被引：5，自引：0，他引：5  

路璐  于德弘  吴茜媛 《现代教育技术》2005,15(4):26-28,16

该文结合心理学、教育学等理论,分析学习者的个性特征类别,对网络环境下学习策略的差异进行了研究,并提出了指导性策略,旨在帮助教师和学习者根据个性特征采取相应的学习策略。该文在心理学、教育学和计算机技术的交叉学科结合方面做出了有益的尝试。  相似文献   

苏轼思想与宋词关系发微   总被引：2，自引：2，他引：2  

祁光禄 《西北师大学报》2003,40(1):62-66

苏轼对词的历史性的锻炼和完善 ,除了他具有超常的智慧和渊博的才学外 ,还与他独特的思想意识密切相关。儒家的执著专注、佛家的空幻虚无、道家的率性自然 ,均奇妙地统一在苏轼的生命实践中 ,他对词的贡献也正得力于其独特思想构造所产生的内驱力的推动  相似文献   

Development and Nature of Preservice Chemistry Teachers’ Pedagogical Content Knowledge for Nature of Science     

Betül Demirdöğen  Deborah L. Hanuscin  Esen Uzuntiryaki-Kondakci  Fitnat Köseoğlu 《Research in Science Education》2016,46(4):575-612

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略论《人间词话》的成就与缺失     

祁光禄 《南阳师范学院学报》2004,3(2):55-59

<人间词话>是王国维重要的美学著作,也是清代尤其是近代以来词学研究的代表作.考察和分析<人间词话>的历史成就与缺失,有助于全面准确地把握王国维的美学思想,特别是能够很好地把握词文学艺术的基本风格及精神、词文学发展演变的基本走向等.  相似文献   

多项式f(x)mod p不可约的一种判别算法     

张大俊  曹清录 《洛阳师范学院学报》2001,20(2):37-38

利用有限域上推广的Euler Fermat定理对f(x)modp的可约性进行研究 ,给出了一种判别多项式f(x)modp不可约算法 .该算法通过随机选取F上满足αm(x)≡ 1 (modf(x) )的多项式α(x) ,以及m的因子k ,并由 (am/q(x) - 1 ,f(x) ) =1 (q是k的任一素因子 ) ,来确定f(x)modp的不可约性 .  相似文献