Visual autocorrelation of prices     

Ünsal Özdilek 《Journal of Cultural Economics》2013,37(2):203-223

Paintings are in essence about visual features of varying significance from which differences in their market prices originate. Studies normally investigate derivative sources of painting price determinants, which is reasonably understandable because the appreciation of an image is quite subjective. This paper provides an operational solution to the quantification of paintings based on a new concept termed as “visual autocorrelation” of prices (VAP). Considering the current empirical framework of spatial and temporal autocorrelation of prices, and using data on the paintings of two abstract expressionist artists, empirical results support the coherence of the VAP concept.  相似文献   

Gendered inequalities in competitive grant funding: an overlooked dimension of gendered power relations in academia     

Finnborg S. Steinþórsdóttir  Þorgerður Einarsdóttir  Gyða M. Pétursdóttir  Susan Himmelweit 《高等教育研究与发展》2020,39(2):362-375

ABSTRACT

Research grant funding influences the organisation of academic work and academic careers. We problematise general approaches to gender bias in research grant funding and argue that it fails to include the wider structures of inequality and the unequal gendered power relations in academia. Approaching the subject with gender budgeting we challenge assumed gender-neutral practices. The objective is to illuminate how the gendered funding system and (the previous and subsequent) gendered structures of academia are maintained. The whole grants scheme is assessed, drawing on statistical data collected on the whole population of a medium-size, comprehensive research and educational institution in Iceland, and two types of competitive grants. The data is measured against the pool of applicants and comparisons within and between fields and ranks are made. By including the structures of inequality and the gendered power relations, the results show how the funding system is biased not only in favour of men, but towards the male-dominated and culturally masculine positions and fields. This approach illustrates the need to address the whole academic system in order to challenge the norms that maintain and reproduce gender inequalities.  相似文献   

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   

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

Zafer Kuş  Kadir Karatekin  Durdane Öztürk  Özlem Elvan 《Educational Media International》2016,53(2):118-138

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.  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   

Effects of axial conduction in laminar tube flow with convective boundaries     

B. Vick  M.N. Özişik  D.F. Ullrich 《Journal of The Franklin Institute》1983,316(2):159-173

Heat transfer in laminar tube flow with convective boundary conditions and axial heat conduction in the fluid is solved exactly. The effects of the external Biot numbers and the axial conduction in fluid on the temperature distribution and the local Nusselt number are determined for both the upstream and the downstream regions. In order to illustrate the effects of velocity profile, the results for the slug flow and the parabolic velocity profiles are plotted simultaneously. The heat transfer characteristics of the flow are found to be rather sensitive to the Péclét number, the external Biot numbers and the velocity profile in the thermal entrance region.  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