Influence of outliers on QTL mapping for complex traits

A method was proposed for the detection of outliers and influential observations in the framework of a mixed linear model, prior to the quantitative trait locus (QTL) mapping analysis. We investigated the impact of outliers on QTL mapping for complex traits in a mouse BXD population, and observed that the dropping of outliers could provide the evidence of additional QTL and epistatic loci affecting the 1 stBrain-OB and the 2ndBrain-OB in a cross of the abovementioned population. The results could also reveal a remarkable increase in estimating heritabilities of QTL in the absence of outliers. In addition, simulations were conducted to investigate the detection powers and false discovery rates (FDRs) of QTLs in the presence and absence of outliers. The results suggested that the presence of a small proportion of outliers could increase the FDR and hence decrease the detection power of QTLs. A drastic increase could be obtained in the estimates of standard errors for position, additive and additivex environment interaction effects of QTLs in the presence of outliers.     

林农复合生态系统中的生态效应分析

本文对林农复合生态系统中的生态效应,如净生产力与经济产量,物质、能量转化,光能利用率,温、湿效应,时、空效应,土壤水分、理化性状的改变,刘病虫害的抑制效应以及刘间种作物产品的有效成分和质量的影响等等,进行了分析。结果表明,林农复合生态系统的生态效应是十分显著的,是一类行之有效的、值得推广的经营方式。     

Do researchers collaborate in a similar way to publish and to develop projects?

The aim of this paper is to establish the similarities and differences between the way of collaboration and the production of researchers when dealing with publications or with the development of projects and whether the collaboration patterns change across disciplines.We have studied the networks of researchers formed through the collaborations in papers or in projects in a research institution (the University of Zaragoza) and we have analyzed a series of individual and global magnitudes. As a general result, we have observed that the laws governing the individual productivity are similar for the cases of publications and projects but, however, the behavior is different when analyzing more complex magnitudes such as the collaborations or other structural variables. We consider also the subnetworks defined by the researchers of the different disciplines and characterize their topologies and compare the corresponding collaboration patterns.Because of the general approach, we expect most of the conclusions to be applicable to other universities or research centers.     

赛博学习：学习科学创新发展的新战略支点

赛博学习是面向信息时代＂数字原住民＂的学习,超越了学校和课堂等正式学习环境,将技术与学习的整合推向了新的境界。赛博学习作为引领学习科学创新发展的关键战略支点,凭借其功能强大的赛博基础设施和复杂系统新方法论,将学习打造成为一个超循环、自组织的复杂动态系统。该系统打破不同教育阶段和教育机构的界限,营造一种个性化学习的环境,整合正式学习和非正式学习,打造跨学科、跨理论与实践的共同体,以推动教育的深刻变革和新型学习文化的创建。     

复Gamma函数的定义形式及其等价证明的探讨

Gamma函数在复分析中占据了一定的地位。由于复数的复杂性,复分析中的Gamma函数产生了许多与数学分析中的Gamma函数不同的性质。Gamma函数的定义形式不唯一,它在复分析中主要有四种定义形式。试图系统地给出这四种定义形式的等价证明(其中,④■①为本人自己尝试给出的证明)。     

基于产学研用合作培养的应用复合型会计人才培养研究——以苏州理工学院为例

企业对会计人员的要求已由原先单一的工作技能向更高的综合素质转变,以服务地方经济为宗旨的苏州理工学院会计学专业应着力培养应用复合型会计人才。根据学生特质,建立相应的人才评价指标体系;采取产学研用合作的方式,制订教学计划,提升专业教师的实践和科研能力,优化学生个性和学术品质,多元化、多角度考评学生,确保培养目标的实现;创新合作机制,激发产学研用各方的积极性。     

复杂网络NAT综合应用及GNS3模拟验证

为解决IPV4地址资源紧张问题,NAT技术应运而生。NAT技术将内网的私有地址转换为外网的公有地址,从而实现和Internet用户的通信,在解决IP地址不足问题的同时,隐藏了内部网络的细节,防止了部分来自网络外部的攻击,具有一定的安全作用。由于NAT技术的复杂多样性,造成复杂网络中应用的复杂性,NAT技术的综合使用要兼顾内外网各种要素,周密计划,严密组织,避免网络漏洞,对此进行了论述。     

Charismatic cops,patriarchs and a few good women: leadership,club culture and young peoples' drinking

The paper reports on key findings of a research project that examined the roles that community-based sporting clubs in the Australian state of Victoria play in shaping young people's understandings and uses of alcohol. Our research imagined clubs as community hubs that are located in complex networks that impact on the ways that clubs understand their locations in communities, and which have unpredictable influences and consequences on club histories, culture and orientations to issues such as young people and alcohol use. The paper focuses on understanding the key roles played by club leaders in facilitating change and transformation in these contexts, particularly in terms of alcohol-related practices and the potential impact of these on young people's uses and understanding of alcohol. We situate these findings in a framework that draws on the literature of complexity science and complex adaptive systems (CAS) to suggest that these practices and changes need to be understood in ways that allow for complexity, uncertainty, emergent behaviours and adaptive change.     

如何利用CNC雕铣机雕刻复杂图形

数控雕铣机是一种同时具备雕刻和铣削加工能力的数控铣床,其主要特征是使用小刀具和高速主轴进行雕铣加工。本文主要讲述如何利用CNC雕铣机雕刻复杂图形。双龙戏珠图案用AutoCAD绘制,经过处理和修改并保存为．dxf格式,用JDPaintv软件生成加工程序,NCStudio雕铣控制系统控制刀具路线最终完成雕刻过程。实践证明用雕铣机雕刻双龙戏珠图案经济快捷,雕铣过程易操作,质量稳定。     

吴中蕃黔中山水诗初探

吴中蕃本着对乡土之热爱,写下众多黔中山水诗。其对黔中山水有着自己独特之理解,有着地域特色艺术表现之自觉。其山水情结源于天性之＂痴顽＂＂,山水之助＂之思想及退隐生活之阅历。由于地域环境影响,其诗呈现出特有之雄浑美、幽深美、奇崛美。其艺术笔法注重工笔与写意之结合,注重移情与理趣之结合,然过分质实而少浑融,得奇句而未得奇境。