Effects of axial conduction in laminar tube flow with convective boundaries

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.     

Affecting Education Policy through Border Crossing between Special Education and General Education

ABSTRACT

A review of current self-study research related to teacher education policy in the United States indicates that at local, university, and state levels teacher educators are affected emotionally and professionally by policy and, in most cases, feel that policy is something done to teacher educators as opposed to something to which they can contribute and make a difference. In this article, we use our review as a base from which to consider how both special educators and general educators might use self-study to know one another better, to work collaboratively to affect policy, and to understand how policy affects them. We argue that teacher educators must work together across content areas in order to interrogate the implementation and impact of policy and to influence the development and implementation of policy.     

Aesthetic experiences in the Cerrado (Brazilian savanna): contributions to environmental education practice and research

In this paper, we reflect on a study in Brazil’s Cerrado that attempts to address a lack of attention to an aesthetic dimension in environmental education practice and research. We start by tracing this lack to the overvaluing of the cognitive sphere in the educational process, noting its echo in the low aesthetic value attributed to the Cerrado biome. Then, through reflecting on an empirical, interview based study of sensations, perceptions and feelings evoked by aesthetic experiences in the Cerrado, we draw on insights from a hermeneutic phenomenological approach to identify key themes for environmental education research and practice in this regard. These include: recognising the singularity of experience; attending to the qualities of experience; acknowledging the value/s of ‘lighter’ and ‘darker’ experiences; and deepening emotions and verbal communication. In our final considerations, we discuss the limitations of the study, alongside new directions in studies of perception, experience, aesthetics and pedagogy that may also advance attention to an aesthetic dimension in environmental education practice and research.     

The process of supervision in the turkish educational system: purpose, structure, operation

The aim of this study is to provide information on the purposes, structure and operation of the process of supervision in the Turkish educational system. In this paper, the historical development of supervision services in the Turkish educational system, as well as the purposes and principles of educational supervision in Turkey and the structure of supervision in the Turkish educational system are defined. Moreover, the organization of sub-systems of the Ministry of National Education and that of supervision at elementary schools, hiring supervisors, their training, duties and responsibilities as well as working principles are presented. In addition, a detailed analysis of the supervision of institutions and teachers by supervisors is included.     

浅析西方国家福利经济制度的改革

20世纪80年代以来,由于政治、经济、社会等多方面的原因,西方各“福利国家”对福利经济制度进行了大幅度的改革。各国的改革大都比较注意根据经济形势的变化而对福利经济制度进行调整,已取得了一定的成绩,但也付出了经济增长率下降、失业率大幅度上升、贫富差距扩大、罢工增加等代价。而且,各国的福利经济制度改革出现了诸如公平与效率、福利经济制度的建立是根据“供给”还是“需求推动”、如何改进公共行政部门的低效率等问题。发达国家福利经济制度的改革对于我国福利经济制度的改革和完善、社会保障制度的改革具有重要的借鉴作用和参考价值。     

化学教学与学生科学素质培养初探

化学是一门实践性很强的科学 .作者充分运用学科特点 ,在传授知识的同时 ,通过多种渠道培养学生的科学知识、科学方法和创新能力 ,为中师化学素质教育提供了一个范例     

神话·史诗·传奇－新中国战争电影回眸与反思

新中国战争电影是和新中国的成立、发展与变化密切联系在一起的,回眸上世纪半个多世纪中国战争电影所走过的历程,可以清晰地看到中国社会政治、经济、化发展变化的轨迹。从五六十年代的信念神话,到八九十年代的战争史诗,再到90年代中后期的战争传奇,中国战争电影始终与时代脉搏一起跳动,从而完成了自己的历史使命与艺术构建。     

新民主主义革命时期学生运动的作用

新民主主义革命时期的学生运动是中国革命史的一个重要组成部分，它对中国革命起了先锋、桥梁作用，舆论宣传作用，支持配合推动作用。所以如此，是因为青年学生从爱国主义情感出发，顺应历史发展的潮流，听从党的召唤，服从党的领导，自觉担负起了救国救民的重任，自觉走上了与工农相结合的道路。     

On some difference sequence spaces defined by a sequence of Orlicz functions

INTRODUCTION Let w be the set of all sequences of real or com- plex numbers and R∞, c and c0 be the sequence spaces of bounded, convergent and null sequences x=(xk), respectively. A sequence x∈R∞ is said to be almost convergent (Lorentz, 1948) if all Banach limits of x coincide. Lorentz (1948) proved that 1 c? = ??? x =( xk ) :linm 1n ∑kn= xk s exists, uniformly in s???. Maddox (1967; 1978) has defined x to be strongly almost convergent to a number L if 1 linm 1n ∑k n= xk s? L=0,…