一类二重积分的计算

对积分区域的边界曲线由参数方程表示的二重积分,我们将给出两种不经消参数而直接计算的方法.     

Over ten years after the implementation of the Teacher’s Law: watching and expecting

It has been over ten years since the Teacher’s Law took effect on January 1, 1994, and its promulgation and implementation have somewhat helped in protecting teachers’ legal rights and interests. Undeniably, however, the Teacher’s Law is defective in many aspects, such as the absence of teachers’ legal identity, its failure to safeguard a teacher’s essential interests and rights, serious laggardness of the teacher’s appointment system and obstacles to dealing with teachers’ complaints and litigations. All such defectiveness make the legislative purpose “to safeguard the teacher’s legal rights and interests” in Article 1 of the Teacher’s Law less effective in practice. Therefore, in order to judicially assist teachers in safeguarding their own legal rights and interests, it is necessary to modify the Teacher’s Law and especially give priorities to: (1) defining the identity of the state staff member for teachers; (2) treating teachers owed to in arrears as peasant-workers, and paying and remunerating them punctually (3) formulating detailed measures on the implementation of the teacher’s appointment system as soon as possible, solving problems of unemployment of teachers arising from the inequality between the teacher’s rights, the school’s power and the absence of the teacher’s identity; (4) establishing a lawsuit system connected with teachers’ complaints and personnel arbitration. __________ Translated from Theory and Practice of Education, 2005:2     

单链抗体可变区的构建与应用

采用基因工程的技术,把抗体的V_H和V_L相连结,就形成一种全新的免疫蛋白,即单链抗体可变区。它既保留了抗体整分子的抗原结合特异性,又具有易富集、易清除、易入瘤等药物载体的特性,在肿瘤的体内外诊断,治疗等方面具良好的应用前景,同时也是研究蛋白质结构功能的理想实验系统。     

Full time adult credential students?instructional preferences at California State University, Long Beach: pedagogy or andragogy?

INTRODUCTIONTheimplementationofandradogy,theartandscienceofhelpingadultslearn,toenhanceadultlearninghasbeenakeyissueintheeducationandtrainingofadultsinthe21stcentury.Thesignifi-canceofthestudywastodeterminehowadultlearningprofessionalspracticeandragogyafter30yearsofitspurposefulimplementation.Andragogy,accordingtoNuckles(2000),isaconceptinadulteducationthatflowsdirectlyfromhumanisticedu-cationalphilosophy.TheandragogicalmodelwasfirstdevelopedbyEdwardLindeman(1926).MalcolmKnowles,develop…     

基于NFI-CMAC的系统参数智能辨识

基于牛顿前向插值公式,提出一种对任意阶多维函数可实现无差逼近的新型CMAC神经网络———NFI-CMAC,详细阐述了基本原理、插值算法及训练规则。基于NFI-CMAC,提出了一种快速、高精度的控制系统参数在线智能辨识方案,仿真实例表明了该方案的可行性与有效性。     

农村幼儿教师信息素养现状调查与分析——以“国培计划”培训学员为例

采用自编的幼儿园教师信息素养调查问卷,对参加郧阳师专＂国培计划2011＂的一线幼儿教师进行调查研究,了解了幼儿教师信息意识、信息技术操作能力、专业信息素养和信息素养发展方面的整体情况,并针对结果为＂国培计划＂的信息技术课程教学提出建议。     

澳大利亚西澳大利亚州专业教学标准探析

澳大利亚西澳大利亚州专业教学标准对该州教师专业发展起着重要指导作用。它从专业知识、专业实践和专业发展三方面为教师专业发展提供了详细指标,凸显了理论与实践统一、层次性与终身性结合、以学生为中心、注重隐性课程因素等特点。     

变系数联立模型的变窗宽局部线性两阶段最小二乘估计

研究了变系数联立模型的参数的估计问题,利用变窗宽局部线性两阶段最小二乘法对变系数联立模型的系数进行了估计,进而得到了估计量的大样本性质。     

非参数核估计计算VaR在农业板块的实证研究

使用非参数核密度估计方法计算风险价值VaR,由于所用方法不需要进行分布假设,其计算较参数方法更为准确。用此方法对45只农、林、牧、渔类农业上市公司的股票收益率的风险价值VaR进行计算,发现农业上市公司的股票投资风险比普通的股票要高,此结论对于农业投资者、市场管理者以及农业上市公司经营者的决策具有一定参考价值。     

论C/C＋＋内存管理中静态区、栈和堆的相互关系

汇编语言是一门面向计算机硬件的符号化的机器语言,通过对汇编语言可以加深对计算机内部原理的理解.本文借助汇编语言低级化的特点,详细地分析了C/C＋＋内存管理中静态区、栈和堆的内在联系和区别.