Understanding the role of situational factors on online grocery shopping among older adults

This paper seeks to identify the situational factors that drive the adoption of online grocery shopping among older adults. A two-step research process is employed. First, exploratory qualitative research is carried out to identify situational factors that older adults take into account when deciding whether to buy groceries online. This is followed by a conjoint experiment to determine which situational factors are considered most important when making such a decision. The sample consisted of 9 participants in the in-depth individual interviews and 206 respondents in the conjoint experiment. The findings indicate that health, mobility issues, and distance to a store are the most important situational factors driving older adults to buy groceries online. Moreover, the findings confirm that the adoption of online grocery shopping among older adults is a result of a complex trade-off of situational variables. The findings contribute to managerial practice by providing online grocery retailers with insight that can be applied when designing promotional programs targeted at older adults.     

A meta-analysis of consumer ethnocentrism across 57 countries

The concept of consumer ethnocentrism was introduced more than 30 years ago, and since then it has received keen interest among academic researchers. However, empirical evidence in published studies has been inconclusive and many macro-drivers of consumer ethnocentrism received cursory attention. This study meta-analyses 240 studies from 57 countries and tries to understand the key drivers of consumer ethnocentrism. The results indicate that consumer ethnocentrism is a universal phenomenon and is driven by culture and the interaction of economic and ethnic diversity variables. Challenging popular beliefs, the findings suggest that neither globalization nor economic threats are unconditional drivers of consumer ethnocentrism. Their effects are conditional on cultural values and economic situation. Results provide evidence that multi-ethnic societies tend to be more consumer ethnocentric when the culture of a country is not strong in egalitarianism. Finally, the paper presents evidence that consumer ethnocentrism affects the imports of consumer goods in a country.     

产品多样性对RCEP成员出口贸易的影响研究

2020年签署的RCEP是全球规模最大的自由贸易协定,其成员国的要素差异和产品多样性将在一定程度上推进贸易发展。本文利用生物多样性的概念计算2000-2019年RCEP成员国的产品多样性,并建立多元回归模型研究产品多样性对出口贸易的影响。结果表明:产品多样性对出口额有着负向抑制作用,这种抑制作用在非东盟国家更为显著。进一步的分析表明,由于各国专业于生产某类产品,导致产品多样性下降,但专业化又推动出口贸易的发展,从而使两者负相关。基于此,本文提出了创新贸易方式,打造对外贸易新高地,推动产业链价值链合作等促进RCEP成员国贸易发展的对策建议。     

多样化人才培养模式构建的影响因素及其思考

地方工科院校多样化人才培养模式的构建,受到社会、高校以及学生个人因素的影响.弄清并理顺它们之间的相互关系,可以为地方工科院校进行多样化人才培养模式构建提供理论依据,也为构建多样化人才培养模式的质量保障体系奠定基础.     

浅析农村公共卫生产品供给的多元化体系构建

当前,是我国加快农村公共卫生产品供给体系建设、全面建设小康社会的关键时期,构建多元化的农村公共卫生产品供给体系意义重大。结合我国国情以及农村实际,我国应该构建一个以政府、市场、非营利组织以及农村民众为一体的多元化供给体系。即应加大政府的财政供给力度,为农村提供普遍性预防性产品;积极引入市场机制,通过市场向日益富裕的农村提供差异化的高端卫生产品;积极发挥非营利组织作用,为农村提供地区性和行业性特殊卫生产品;加强农村公共卫生的宣传力度,提高农民的自我满足程度与水平。     

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。     

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。     

团队多元性对团队行为的研究综述

团队多元性是近20年来组织行为学中研究的热点问题,引起了国内外学者的广泛关注。文章在国内外相关理论基础上,介绍了团队多元性的概念、维度与测量方法,评述了团队多元性对团队行为的影响,对未来的研究提出一些建议。