食品中邻苯基苯酚残留检测技术进展

综述了邻苯基苯酚残留检测的气相色谱、液相色谱、气相色谱-质谱、液相色谱-质谱及毛细管电泳等方法,比较了各种方法的优缺点,并展望了其发展前景,以期为分析人员选择邻苯基苯酚残留的检测方法提供帮助。     

出口食品农产品检验检疫风险评价体系的建立

利用美国M IL-STD-822B标准的原理和方法构建了出口食品农产品检验检疫风险评价矩阵,首次定义了检验检疫风险事故是不合格产品引起的国内外不良反应,并制定了风险事故后果的严重等级划分标准,确立了以一年内发生风险事故的频次作为风险事故发生概率的原则;同时依据欧盟2002/63/EC指令对风险评价结果制定了以连续459批为一个监控周期的抽样方案。根据风险评价体系,将出口食品农产品检验检疫风险设置为5个风险等级：HHH、HH、H、M和L,依据监控抽样的检测结果可以对具体出口企业和产品进行风险等级加严或放宽的动态调节。     

浅述出入境检验检疫与非传统安全问题的治理

在当前全球经济贸易自由化和区域经济一体化不断深入的趋势下,经济金融动荡、资源能源短缺、贸易保护主义、自然生态环境恶化、传染病大规模暴发、产品质量与食品安全以及生物恐怖主义等在内的诸多非传统安全问题对我国的经济社会发展和公共安全构成了重大威胁。而科学发展观理论的提出,正是重点针对上述问题,以确保全面协调可持续发展,构建以人为本的和谐社会。出入境检验检疫是我国参与全球化秩序最早也是融入最充分的工作体系之一,本文在对非传统安全问题内涵、成因及传播的一般规律进行解释的基础上,分析了非传统安全问题与出入境检验检疫之间的内在联系,并结合笔者个人思考,给出了在科学发展观的指导下,出入境检验检疫如何积极参与我国非传统安全问题治理的建议。     

2010年欧盟RASFF通报中国食品接触金属制品安全问题分析

根据2010年度欧盟食品和饲料快速预警系统（RASFF）向公众通报进口中国食品及饲料的安全问题的情况,本文针对其中的食品接触金属制品,总结通报国家的分布、产品涉及的风险因素,并分析问题产生的原因,探讨应对的措施,充分发挥风险预警作用,从而减少或避免类似情况发生。     

婴幼儿食品微生物及微生物毒素调查分析

对婴幼儿食品（配方乳粉、补充谷物、饼干和罐头）分别进行微生物污染以及微生物毒素调查。调查结果表明：357份婴幼儿食品均未检出沙门氏菌和单核细胞增生李斯特氏菌;11份婴幼儿配方乳粉、1份补充谷物和1份饼干食品中检出坂崎肠杆菌,检出率分别为4.2%,2.4%和2.5%;检出1份补充谷物菌落总数超过国家标准最高安全限量值。13份婴幼儿配方乳粉和3份补充谷物检出肠杆菌科细菌,检出率分别为32.5%和7.1%;14份（婴幼儿）配方乳粉、2份婴幼儿罐头检出蜡样芽孢杆菌,检出率分别为35%和20%;1份婴幼儿配方乳粉检出黄曲霉毒素M1超标。婴幼儿食品存在微生物及其微生物毒素污染的风险,应加强对婴幼儿食品的致病微生物及其毒素的监测和监管。     

浅谈医院信息系统的安全维护

医院信息系统（HIS）在当今医院管理中发挥着不可替代的作用。该系统的广泛应用,给医院带来了巨大的经济效益。然而,一旦HIS系统运行出现问题,将给医院带来不可估量的损失,因此必须从中心机房、网络设备、服务器及数据库管理、病毒防范等方面采取相应的安全维护措施,以保障HIS系统的安全运行。     

Crowding-out effect of the current food stamp subsidy scheme

We construct a model to illustrate that the current food stamp subsidy scheme fails to achieve its stated aim due to the crowding-out effect. More specifically, if the household income is sufficiently low, only a corner solution exists, and a full subsidy is needed.     

城镇家庭消费金融效应的地区差异研究

本文使用各省市自治区城镇家庭借贷支出的分类面板数据,结合我国经济发展处于转轨期的特性,考察消费升级、社会保障不完善及地区发展不平衡等因素对消费的影响。研究发现各变量在对消费的影响性质和程度上均存在地区差异,社会保障、消费升级和储蓄在全国范围内均显著正相关,房贷支出和教育在中西部地区的促进作用显著,而保险在东部地区作用突出,家庭投资则均不显著。政府要扩大消费内需并改变消费金融发展的不平衡,就应把握消费升级和社会保障制度的推进时机和力度,增加中西部地区社会保障投入和教育投入,持续提高居民收入,适度放宽中西部地区的家庭房贷限制。     

Environmental impacts of changes to healthier diets in Europe

Food consumption causes, together with mobility, shelter and the use of electrical products, most life cycle impacts of consumption. Meat and dairy are among the highest contributors to environmental impacts from food consumption. A healthier diet might have less environmental impacts. Using the E3IOT environmentally extended input output database developed in an EU study on Environmental Impacts of Products (EIPRO), this paper estimates the difference in impacts between the European status quo and three simulated diet baskets, i.e. a pattern according to universal dietary recommendations, the same pattern with reduced meat consumption, and a ‘Mediterranean’ pattern with reduced meat consumption. Production technologies, protein and energy intake were kept constant. Though this implies just moderate dietary shifts, impact reductions of up to 8% were possible in reduced meat scenarios. The slightly changed food costs do not lead to significant first order rebound effects. Second order rebounds were estimated by applying the CAPRI partial equilibrium model. This analysis showed that European meat production sector will most likely respond by higher exports to compensate for losses on the domestic meat market. Higher impact reductions probably would need more drastic diet changes.     

On the forecasting of the challenging world future scenarios

Logistic and power law methodologies for both retrospective and prospective analyses of extended time series describing evolutionary growth processes, in environments with finite resources, are confronted. While power laws may eventually apply only to the early stages of said growth process, the Allee logistic model seems applicable over the entire span of a long range process. On applying the Allee logistic model to both the world population and the world gross domestic product time series, from 1 to 2008 AD, a projection was obtained that along the next few decades the world should experience a new economic boom phase with the world GDP peaking around the year 2020 and proceeding from then on towards a saturation value of about 142 trillion international dollars, while the world population should reach 8.9 billion people by 2050. These results were then used to forecast the behavior of the supply and consumption of energy and food, two of the main commodities that drive the world system. Our findings suggest that unless the currently prevailing focus on economic growth is changed into that of sustainable prosperity, human society may run into a period of serious economical and social struggles with unpredictable political consequences.