进口食品农产品安全预警方法探索——管理图分析

食品安全是一个重要的公共卫生安全问题,涉及千家万户的利益.随着我国经济的快速发展,食品农产品的进出口贸易日益繁荣,进口食品农产品安全及其预警监管,越来越成为人们关注的头等大事.本文以广州出入境检验检疫局食检中心的检测数据为依据,将管理图分析运用于进口食品农产品的安全预警,建立了针对不同危害物和食品农产品种类的阳性检出率管理图、危害物检出率管理图等,为进口食品农产品的安全预警提供了有效可行的数理统计模型和快速预警依据.     

中国农产品进口激增与粮食安全:成因与对策

近年来,中国农业连年增产,粮棉油糖等主要农产品进口快速增加。农产品大量进口,将造成短期和长期多方面的不利影响,甚至可能威胁中国的农业和粮食安全。本文分析了连年增产背景下的农产品进口增加的多方面原因,其中,产量增长满足不了需求增长、进口农产品和国内自产农产品存在较大的价差、中国农产品贸易保护程度较低是重要的影响因素,本文从管理和市场的视角针对性地提出了政策建议。     

输欧商品屡被“通报”

为保护本地区商品的安全和消费者利益，欧盟建立了当前世界上较为先进的贸易预警和快速反应系统，即“非食品类商品快速预警系统”（RAPEX）和“食品饲料快速预警系统”（RASFF）。从这两个系统发布的数据通报，可以较全面地分析出某一贸易国家输欧商品的质量安全状况。     

农产品质量安全:农村小康社会建设绕不过的门槛

农村是我国全面建设小康社会的关键。农民增收是农村小康社会建设的基础。在新的时代背景下，农产品质量安全问题成为制约农民收入增长的重要因素之一，进而影响到全面建设小康社会的进程。确保农产品质量安全已成为小康社会建设亟待迈过的门槛。通过上述分析，本文最后在介绍美国食品召回制度的基础上，就如何加强农产品质量安全管理提出了相应的政策建议。     

自主原料基地建设对保障我国农产品质量安全的思考

近几年不断发生的食品安全问题究其原因,根本在于我国农产品生产企业在以"公司+农户"模式的运作下,企业没有自主的原料基地,难以保证高质量的安全食品供给。企业只有建设自主原料基地,从源头上对农产品的质量加以管理和监控,才能确保农产品的质量安全,保障我国高质量的安全食品供给。     

俄科学家认为转基因玉米无害

欧盟国家对基因工程食品的进口实行严格的控制,因为利用转基因植物生产的食品是否安全的科学研究结果尚不知晓。最近,美国通过人道主义援助向俄罗斯出口了一批转基因玉米。因为俄罗斯转基因作物只是在实验田中栽培,还没有在大田中播种,因此,转基因玉米是否安全引起了一些人的怀疑,虽然这批进口玉米只眼于用作饲料。俄罗斯食品研究所副所长、医学科学院院士图捷利扬先生在报上公开宣布：“用转基因植物做食品在医学上是无害的”。早在进口这批玉米很久以前,俄罗斯8个研究所组成的研究小组就已开始了对转基因植物食品是否有害的研究,…     

绿色农产品阶段性开发与管理对策

发展绿色农产品是推动我国农业发展 ,提高农产品市场竞争力 ,满足消费者不断提高的食品消费安全需求的重要举措和必然选择。本文在界定“绿色农产品”概念、分析绿色农产品开发层次性与动态性特征的基础上 ,提出了对绿色农产品实施阶段性开发与规范化管理的对策。     

日本『肯定列表制度』对河北省农产品出口的影响及对策

一、日本“肯定列表制度”的内容日本是食品和农产品进口大国,60%左右的农产品来自国外。近年来,进口农产品农兽药残留超标事件频频暴光,日本消费者对食品安全提出了质疑。2003年5月,日本着手修改食品卫生法中相关条款,2005年6月,日本正式向各WTO成员通报了“肯定列表制度”(Po     

资讯点击

农业部放行美国转基因大豆　经风波的美国孟山都转基因大　豆终于修成了正果,中国农业部近日正式公布了农业部将依照一系列措施对进口农业转基因生物实施正常管理。据透露,为了证实转基因食品的安全性,从2002年开始,农业部就派出了专家组对孟山都公司的转基因农产品进行安全测评实验,其中的论证过程非常漫长,包括很多项目的实验室测试和食品安全测试,最终在现有的科研条件下,初步证明了转基因食品的安全性,由此认为可以向孟山都公司颁发《农业转基因生物安全证书》。但这个安全认证是有期限的,当期限到期后,美国大豆还将经过复核。专业人士…     

构建保障安全农产品生产和流通的监控体系

目前，我国农产品质量安全问题令人十分担忧，工业“三废“的排放，城镇居民生活废弃物的增多，农药和化肥使用量的增加，使农业生产环境日益恶化，农产品污染的问题越来越突出。我们应尽快在全国构建和完善安全农产品生产和流通的监控体系，为安全农产品的监督管理提供统一的依据。     

A Rich Vein for “Reality Mining”北大核心CSSCISSCI

Arik Hesseldahl In the aftermath of the September 11 attacks, U.S. officials quickly turned their attention to other potential targets, including California's Golden Gate Bridge. What would happen if terrorists took down the bridge between San Francisco and Marin County? How much of the region would be affected and for how long?     

John Stuart Mill's Theory Of Justice

John Stuart Mill has traditionally been portrayed as self-contradictory and failing to construct a unified social theory. Recent scholarship, however, has challenged this view, finding Mill's work to be creatively synthetic in bridging the antinomies inherent in liberal democratic thought. This revisionist interpretation of Mill is advanced by an understanding of his theory of justice and its role in shaping his policy positions on issues such as welfare, education, voting rights, property rights, taxation, government intervention, and the future of capitalism.     

中国养活自己能力的长期预测:技术和政策分析

中国拥有世界五分之一强的人口 ,收入又在迅速增长。因此 ,国际上很自然地会考虑或推测她在今后的几十年是否有能力养活自己。中国的人口预计将从 2 0 0 0年的 1 2 8亿增长到 2 0 2 0年的 1 4 6亿 ,和 2 0 3 0年的 1 4 9亿。与此同时 ,人均收入的增长将导致对家畜和鱼类产品更大的需求 ,因而对饲料的需求也将有很大的增长     

John Stuart Mill's Theories of Wealth and Income Distribution

Although he was much influenced by David Ricardo when he wrote the classical part of his Principles , John Stuart Mill was not a Ricardian when he penned his theories of wealth and distribution. They are based on a triple foundation. First, a belief that economics is a moral discipline. Second a theory of custom-driven human behavior. Third, an empirically formed conviction that the institutions of state, education and business cooperate to structure the distribution of income. On the basis of these presuppositions, Mill formulated 1) an institutional theory of the formation of human and non-human wealth and 2) an even more institutional theory of distribution demonstrating how the aforementioned institutions malignantly skew the distribution of income to the advantage of the propertied classes and to the extreme disadvantage of the working class. As a social economist, Mill recommended institutional reforms designed to eradicate the poverty of the working class.     

Toward a Phylogenetic Reconstruction of Organizational Life

Synopsis Classification is an important activity that facilitates theory development in many academic disciplines. Scholars in fields such as organizational science, management science and economics and have long recognized that classification offers an approach for ordering and understanding the diversity of organizational taxa (groups of one or more similar organizational entities). However, even the most prominent organizational classifications have limited utility, as they tend to be shaped by a specific research bias, inadequate units of analysis and a standard neoclassical economic view that does not naturally accommodate the disequilibrium dynamics of modern competition. The result is a relatively large number of individual and unconnected organizational classifications, which tend to ignore the processes of change responsible for organizational diversity. Collectively they fail to provide any sort of universal system for ordering, compiling and presenting knowledge on organizational diversity. This paper has two purposes. First, it reviews the general status of the major theoretical approaches to biological and organizational classification and compares the methods and resulting classifications derived from each approach. Definitions of key terms and a discussion on the three principal schools of biological classification (evolutionary systematics, phenetics and cladistics) are included in this review. Second, this paper aims to encourage critical thinking and debate about the use of the cladistic classification approach for inferring and representing the historical relationships underpinning organizational diversity. This involves examining the feasibility of applying the logic of common ancestry to populations of organizations. Consequently, this paper is exploratory and preparatory in style, with illustrations and assertions concerning the study and classification of organizational diversity.     

Information infrastructure: Who builds broadband networks?

This paper examines the essential difference between the U.S. and Japan, when one considers information infrastructure. There are seven perception gaps between the U.S. and Japan concerning Information Infrastructure policies. These gaps must be understood in order to compare the countries' governmental policies in this area. In looking at the present circumstances, the essential question to answer concerns who is to build, own and operate the network(s) of the infrastructure. Liberalization is certain to be a central factor in the ongoing telecommunications debates. Now that customers have had a taste of the liberalized market-place, the movement toward more open markets will be difficult to stop. When considering options, it is necessary to pay close attention to standardized network access and the increasingly important role software plays. These issues are causing us to take a new approach to the traditional role played by regulators. They also force a closer look at the appropriate structure of utility companies. This paper addresses the above issues in hopes of stimulating dialog on the new telecommunications infrastructure paradigm.     

海岛地区产业演替及资源基础分析--以舟山群岛为例

改革开放以来,舟山市产业构成发生了显著变化,其经济发展过程可以划分为三个阶段。1992年前,是以产业结构渔业占绝对地位的单一结构阶段;1993—1998年,以旅游业为主的第三产业快速发展阶段;上世纪末以来,又进入了新一轮的经济发展时期,即工业产值比重快速增加阶段。根据海岛的自然资源基础和特点,在新世纪的经济发展过程中,舟山市应定位为生态型的港口旅游城市。以港口及临港工业为主导,以海岛旅游和海洋经济为特色,大力发展第二产业和第三产业。海岛地区的主导产业应体现海岛资源优势及区位优势,以集群性环保型产业为主。同时由于海岛地区淡水资源缺乏,主导产业也应着重选择低耗水型产业。     

风险视角下企业治理结构和研发创新——基于委托代理模型的研究

本文基于委托代理模型,从风险的视角研究企业治理结构对研发创新能力的影响。本文构建了一个包含创新活动的委托代理模型进行理论分析,利用动态DEA 模型测算创新能力,并使用2015-2018年我国上市制造业企业数据进行实证检验。实证部分检验了理论结论:委托代理问题不利于企业提升研发创新能力,且客观风险和主观风险厌恶会加剧该负面影响。基于此,本文认为上市企业应根据企业自身研发活动特点有针对性地改善企业治理结构,提出了适当延长代理人任期、推动股权激励计划、提升代理人的风险承担能力等建议。     

Nonlinearity in Stock Exchange Markets: The Case of Bist 100 Indices

In this paper,using data for the Bist 100 index,we investigate the presence of nonlinearities by employing several nonlinearity tests.The Brock,Dechert,and Sche...