基于性别差异的我国高校毕业生就业特征研究

本研究基于北京大学2009年度全国高校毕业生就业抽样调查数据,针对社会科学研究中的高度复杂性、非线性和不确定性特征,运用复杂性科学研究中的神经网络拟合仿真方法,较好地分离出性别差异对我国高校毕业生就业工作特征和流动特征的影响。研究表明:性别因素将会导致10.89%的薪金差距;男性获得就业地户口的机率比女性高出9.27%;从整体上看,男女大学生就业单位性质的差异并不明显。相对上述就业工作特征,毕业生流动特征的性别差异较为显著:男性毕业生比女性具有更强的流动性,除了就业流动以外,上学流动、毕业流动的性别差异度分别是19.5%和23.77%,全流动差异更是达到了40.57%;而男女毕业生就业流动概率的差异度仅有2.77个百分点,其主要是女性的流动惰性所造成的。     

生产库存系统的稳定性和牛鞭效应分析

为了讨论供应链系统稳定性与牛鞭效应之间的关系,建立了生产库存控制系统的离散微分方程模型.基于Z-变换理论研究了生产库存系统的动态性.在库存充足和库存不充足2种运作机制下,研究了使生产库存系统稳定和不稳定的参数范围;在2种运作机制以及实际系统下,分别在稳定区域和不稳定区域中,基于不同的需求模式研究了生产交付速率波动性、系...     

美国“临床实践型教师教育”的教育实习模式探析

教师是一个类似于医学、护理或临床心理学的临床实践专业。为达成培养高效教师的终极目标,美国"临床实践型教师教育"聚焦实践性教育学环节,对教育实习的目标与内容、实习基地学校和指导教师的资格认证均作出了明确规定。为确保教育实习的成效,"临床实践型教师教育"强调相关主体应建立起支持性合作伙伴关系,并尝试搭建全国性的信息网络平台,从而形成具有整体性、连贯性的教育实习体系,以培养高效教师,满足教育需求。     

唐山环城水系建设的调研与探究

唐山环城水系的建设,对改善唐山市整体生态环境和推动城市改造、发展经济具有重大意义。通过问卷调查、统计分析的方法就唐山市环城水系建设中出现的相关问题、应该遵循的原则和思路以及进一步发展的方向和对策展开探讨,以期为唐山环城水系的建设工作提供建议和参考。     

EMDR、适应性信息加工与个案概念化（上）

EMDR是一个整合性的、以咨客为中心的心理治疗方法,它着重于大脑的信息加工系统、烦扰经历的记忆,这些病理学基础不是由器质性的损伤导致的。EMDR强调对临床情境有作用的经历,和那些需要带领咨客达到更健康的心理状态的经历。EMDR作为以经验为主的支持治疗,本文综述其历史、发展和研究,在阐述适应性信息加工模型之后,用一个延续的个案实例来说明了EMDR的个案概念化和8个阶段的治疗。这个方法用于加工那些建立病理学基础的和触发当前功能失调的早期记忆,并为将来恰当的行为提供模板,包括克服技能和（或）发展性的不足所需的知识与行为。整合的EMDR与家庭系统观点的好处是可以提供最综合的治疗效果。     

人脑信息加工神经网络化体系初探

本文对心理词汇、外语心理词汇、二语心理词汇、双语心理词汇所涉及到的语言与思维关系问题进行了较为深入的分析、阐释和讨论,明确指出：1）在语言习得和外语学习过程中,逻辑思维和形象思维两套系统会因信息输入途径的不同而各自、相继或同时参与着信息加工;2）两种思维系统所参与的信息加工,会以＂词条或概念群组＂的形式加以储存;3）提出了外语学习信息加工心理词库的假说;4）并对定位论和总体论以及各种类型心理词汇的分类、概念及其信息输入、储存、激活等问题分别进行了简明扼要地阐述、分析和讨论;在此基础上,提出了＂人脑信息加工神经网络化体系论＂假说。     

维生素C和免疫多糖对中华倒刺鲃非特异性免疫功能的影响

在中华倒刺鲃每千克基础饲料中分别添加免疫多糖2g、免疫多糖4g、维生素C（VC）700mg、VC1400nag、VC700mg＋免疫多糖2g、VC700mg＋免疫多糖4g、VC1400mg＋免疫多糖2g、VC1400mg＋免疫多糖4g,以基础饲料为对照组,连续投喂2周后,通过测定血液白细胞的数量,白细胞吞噬能力,血清、头肾和脾脏的溶菌酶活力,探讨不同浓度的免疫多糖和VC对中华倒刺鲃非特异性免疫功能的影响．结果表明：VC和免疫多糖都能提高中华倒刺鲃免疫机能,且免疫多糖和VC二者间在较低浓度组合时有协同作用,高浓度组合时反而产生拮抗作用．免疫多糖和VC的最适宜组合浓度为（VC700mg＋免疫多糖2g）／kg基础饲料．     

Gender differences in performance in mathematics at the end of lower secondary school in Italy

The paper deals with the investigation of gender differences in performances in mathematics for Italian students at the end of lower secondary school. The study is based on a new large-scale assessment test developed and administered by the National Evaluation Institute for the School System. Given the evidence in the literature which favors males, performances of female and male students are compared using different approaches. Scores proposed by educational experts based on item subgroups were considered, while a model-based approach was used within item response theory. The results revealed a significant advantage to males in overall performance, while no meaningful differences were observed with respect to item domain and type. An interpretable item map was developed crossing expert opinions with IRT abilities, and plausible proficiency levels were defined. According to the map-based student classification, a relatively lower percentage of females fell into the highest proficiency groups with respect to males.     

Socioeconomic Status– and Gender‐Based Differences in Students’ Perceptions of E‐Learning Systems

Many universities are pursuing increases in on‐line course offerings as a means of offsetting the rising costs of providing high‐quality educational opportunities and of better serving their student populations. However, enrollments in online courses are not always sufficient to cover their costs. One possible way of improving enrollments is through marketing campaigns targeted to specific demographic groups. In this study, we take a first look into how students’ perceptions of e‐learning systems, prior to their enrollment in an online course, vary across socioeconomic status and gender. Findings suggest that prior to taking an online course, working‐class students perceive e‐learning systems more positively than their middle‐class peers but that little difference exists between genders. Armed with this knowledge, universities may improve online course enrollments by marketing online courses specifically to working‐class students or through campaigns aimed at improving middle‐class students’ perceptions of e‐learning systems.     

Intrinsic Factors for Continued ERP Learning: A Precursor to Interdisciplinary ERP Curriculum Design

Unilateral enterprise resource planning (ERP) curriculum improvements from the instructor's perspective are likely to generate only limited success. Understanding student motivations and beliefs with ERP systems is the missing link to effective ERP education. Relatively little attention in the ERP literature has been given to student learning associated with ERP experience, and almost none to factors influencing current and expected student beliefs and behaviors relative to ERP. The complexity of ERP systems demands that beliefs and behaviors be considered when planning ERP curricula. In the present study, the Theory of Planned Behavior was extended to examine students’ intentions to explore additional aspects of ERP after their class exercises. When considering all students, attitude and subjective norm had positive and significant effects on intentions to continue ERP learning. Subjective norm also affected attitude, and availability of support materials had a positive effect on subjective norm. Distinctive patterns are found for the construct relationships between student groups who valued ERP education (the engaged) and those who placed little or no value on ERP education (the undecided). Results from competing model analyses indicate that support materials influenced the engaged and undecided groups differently. Strategies for ERP curriculum design are provided.