Lead factory operationalisation and challenges

Abstract

This paper deepens the understanding of the lead factory concept by examining how the lead factory role is operationalised and what challenges are associated with it. The research is based on an explorative case study of eight Swedish lead factories in the manufacturing industry. The empirical findings suggest that the understanding of the lead factory concept should be extended as it is not restricted to one type of set-up. The findings show a spectrum ranging from an entire manufacturing plant, parts of a plant, to a virtual plant considered to be the lead factory. The research also shows a broad range of challenges experienced by lead factories. Several of these are related to and originate from unclear role, responsibility and mandate of the lead factory. The lack of dedicated resources for lead factory activities, specifically long-term development and difficulties in measuring the benefits of the role, were other challenges faced.     

Spatial pattern analysis of the incidence of aster yellows disease in lettuce

The degree of aggregation of lettuce plants infected by aster yellows phytoplasma (AYP) was investigated in 12 fields from three experiments. Position of diseased and healthy plants was mapped in a 6–9×12-m section of each field; for most analyses, fields were divided into 10-plant quadrats. Mean disease incidence (p) ranged from 0.01 to 0.30. The frequency of diseased plants was described by the beta-binomial distribution, with an index of aggregation (θ) ranging from 0 to 0.17, positively correlated withp, and generally increasing over time within a field. Distance-class analysis revealed a core-cluster size of only a few plants. However, spatial autocorrelations ofp between quadrats were not significant, indicating that the scale of spatial pattern was small, generally less than 10 plants. An overall measure of aggregation was given by the slope parameter of the binary form of the power law, in which the log of the calculated variance is regressed on the log of the theoretical variance for a binomial distribution. The slope was 1.18 and significantly different from 1. Results for this “simple-interest” disease are interpreted in relation to the persistent transmission of AYP by its aster leafhopper vector.     

立志农业生产 献身科教事业——记我国著名植物病理学家韦石泉教授

韦石泉（1922~2007）,江苏江宁人,著名植物病理学家,农业教育家。韦石泉教授深谙植物病毒学,博古通今,对植物保护学科的发展有着新颖的思想和不断的实践。早年曾开展真菌病害生理研究2,0世纪60年代起专攻植物病毒病害的科研和教学工作,对赤豆花叶病毒、大豆的环斑病毒、白菜芜菁花叶病毒及一些果树病毒及病害,进行了较系统的深入研究,在病毒提纯、血清学技术、病毒株系划分以及品种抗病性鉴定等方面做出了突出贡献,对植物病毒学学科建设和人才培养付出了极大的努力,贡献颇多。韦石泉教授献身于植物病理学教育事业,在40多年的教学生涯中,他在学术水平上有很深的造诣,在学术道德上有很高的修养,他注重教学、科研和生产实践的结合,理论密切联系实际。     

英语名词转化为动词初探

名词转化为动词的现象在现代英语中越来越活跃。论文通过对其八种主要现象的总结、分析,旨在提请读者,英语中名词转化为动词是相当自由、普遍。     

英汉指示词与时间名词的搭配及其语义认知研究

英汉时间指示语都可以通过指示词与时间名词组合而成。指示词与时间名词在组合使用时会有各自不同的搭配方式和指示信息。英语“this／these＋time noun”短语与汉语“影这些＋时间名词”短语在搭配习惯及词组语义上存在共性和差异,即意义相同的指示词都可以接纳时间名词组合成时间指示语,但后接具体名词并不能一一对应;二者在语义上存在模糊与精确之分,也有模糊度或精确度强弱之分。这些差异本质上源于中西思维模式的不同。对此短语进行语义认知研究有助于对指示词和时间名词的精确理解与使用,有利于跨文化交际、外语教学及翻译实践。     

从研究方法的变迁看汉语副名组合的研究

本文纵观百年来的语法研究方法的变迁 ,探寻汉语副名组合问题研究的发展脉络 ,并对每个时期的重要文章进行扼要分析 ,最后提出发展的语言观和专家分析与社会认同相结合的规范化标准     

生命科学系植物基地的建设和管理

植物基地为生命科学系的教学提供了重要的实践场所,植物基地在生物学教学中的重要性日益突出.琼州学院生命科学系的实验室要加强植物基地的建设和管理,充分利用现有的条件,积极的配合教学,超额完成教学任务.     

钙在植物营养中的作用

钙是植物维持正常生命活动所必需的营养元素之一,在植物体内执行多种生理功能;目前,钙已不再仅仅被看作是一种参与构成植物各种器官、组织的营养物质,而且还作为信号物质调节细胞功能,为植物体内各种代谢活动的正常进行提供保障;此外,钙对植物赖以生长的土壤介质的改良也发挥重要作用。因此,钙在植物营养生理中的作用受到人们的广泛关注。本文在查阅大量文献的基础上,对当前这方面的研究成果及动态进行综述。     

从统计数据看中国知识产权保护的成效与差距

从媒体上公开的统计数据看，中国在专利、商标、版权、植物新品种与海关保护、打击侵权盗版等知识产权保护方面取得了很大成效，但也存在着知识产权文化的缺失、自主创新力不强、科研投入不足等差距。大量的系统的统计数据表明，需要从发展知识产权文化、实施知识产权战略等几方面努力来保护知识产权。     

从主名词角度论连体修饰句的动词时制

日语中的动词除了作为谓语出现在句末，还可以在连体修饰句中出现。通过具体例句，从主名词的角度论述了连体修饰句动词的时制问题，分别是相对名词、内容句名词、关系句名词、特征名词等几方面，从中发现，修饰句中动词的时制比较复杂，往往要受多方面因素的制约，实际使用中需要认清主名词的内在特点，注意主句事态与修饰句事态发生的时间先后，以及相关固定用法等。