简析《史记》中的社会饮食结构 ——以关中地区为中心

《史记》作为百科全书,对从传说中的黄帝到汉武帝中期长达三千多年的社会事象作了全景描绘,涉及各个阶层、各种人物的生活衣食住行的方方面面。作为生活头等的“食”在这部巨著中也是无处不在,对饮食（主要是“食”的方面）活动、礼仪、方式、对象和器具等都作了记载,涵盖了物质层面、制度层面、行为层面和精神文化层面。从《史记》记载来看,总体上可以说,我国古代逐渐形成以谷物为主食,肉类、蔬菜瓜果为副食的饮食方式。     

全球替代性食物体系综述

在世界各地,农业食品领域的工业化造成了日益严重的环境、经济和社会问题,如环境污染、 大量碳排放、食品安全危机、小农边缘化和小农生计的难以维系。 为了应对这些问题,多个国家的不同 群体建立了多种多样的替代性食物体系,如社区支持农业、农夫市集、共同购买、社区菜园等。 替代性食 物体系自 2009 年进入中国至今已有十年,获得了较大发展。 然而,国内研究较少关注国际替代性食物 体系产生的背景及理念。 文章从替代食物体系的产生和发展、主要特征、国内外差异以及学术界的批判 等几个方面进行概述,全面介绍相关的关键问题和概念,为推动国内替代性食物体系研究的发展助力。     

Increasing implicit and explicit attitudes toward an organic food brand by referencing to oneself

In the last decades, theoretical and empirical work has been devoted to implicit attitudes toward a large range of food items. Despite the increasing development of green labels in the food market, to our knowledge no study has investigated implicit attitudes toward organic food nor has tried to change them. Capitalizing on the important role of the self in consumer or pro-environmental behavior, we aim to change or form implicit and explicit attitudes toward organic food brands using the self. Moreover, we investigate the possibility of changing hypothetical shopping behavior, brand identification, and attitude change persistence. Targeting two fictitious brands of organic food in two studies, we use the Self-Referencing (SR) task, an evaluative learning paradigm that relies on both the use of the self as a positive source of evaluation and the common action to classify the self and a target. We assess its effects on implicit attitudes, using one of the most common indirect measure (Implicit Association Test), as well as on explicit attitudes. We show that the SR manipulation results in more positive implicit attitudes, explicit attitudes, and to more frequent hypothetical choice of products for the eco-brand paired with the self compared to the other eco-brand. SR manipulation also results in higher level of brand identification. Moreover, changes in implicit attitude mediate changes in explicit attitude, identification, and hypothetical choice. Finally, we provide evidence for the persistence of the effect: Participants liked and identified more with the brand originally paired with the self even after removing the pairing with the self. The discussion is organized around the importance of taking into account implicit attitudes toward organic food brands and the usefulness of the self in changing or forming these attitudes.     

Peer and Friend Influences on Children's Eating

Peers and friends are perceived as important role models for the formation of children's attitudes and behaviours. A wealth of research has aimed to establish the contribution of peers and friends to children's developing eating behaviours, and their attitudes towards eating. This review describes and evaluates such research. Experimental research examining peer modelling of food consumption and liking is reviewed, and several individual child factors that are suggested to make children more or less receptive to peer and friend influences are discussed. The influence of children's perceptions of their peers’ and friends’ eating behaviours upon their own eating practices is also explored. The benefits of future longitudinal research to improve understanding of peer and friend influences on children's eating are emphasized.     

“社会企业”与“食物银行”:澳门特区的社会管理创新刍议

伴随着经济的飞速发展,社会管理体制绝不能产生任何滞后。随着经济社会各领域发生深刻地变化,由政府高度主导的社会管理模式亦需要与时俱进地创新。作为国家特别行政区之一的澳门,近年来在经济上取得长足发展、政府公共财政收入颇为理想的情况下,不断探索"以民为本"的社会管理模式,努力辅助弱势社群,解决社会问题,持续营造良好的社会环境,促进社会和谐。澳门特区近年来推出的"社会企业"和"食物银行",是澳门政府现阶段社会管理的着力举措,体现出澳门特区的社会管理体制创新的特点。     

从“稻鱼鸭共生”看侗族的原生饮食——以贵州省从江县稻鱼鸭共生系统为例

侗族先民以生产糯稻为主，并利用稻田养鱼鸭，创造了侗族地区“稻鱼鸭共生”的原始有机农业文化经典形式。侗族特有的生存环境和农耕方式，形成了侗族人民食不离酸、喜糯食、喜酒、好鱼、茶饮独特等饮食特点及文化。侗族的原生食品加工方法独特，选料考究，营养价值高，富含各种人体所必需的营养物质，特别是以鱼类为加工原料的侗族酸食富含人体所需的可溶性钙是新鲜鱼食品的16倍以上，“稻鱼鸭共生”系统成为侗族食材的一个重要来源。稻鱼鸭复合系统保证了侗族传统食品的特殊性及无公害性，只有优质的传统原生态食材才能保证传统民族食品的传统性，保护“稻鱼鸭共生”系统不仅为民族食品的传承和发展提供了原料的保障，也为侗族传统食品产业化打下了坚实的原料供给基础。     

An Agent‐Based Model for Pathogen Persistence and Cross‐Contamination Dynamics in a Food Facility

We used an agent‐based modeling (ABM) framework and developed a mathematical model to explain the complex dynamics of microbial persistence and spread within a food facility and to aid risk managers in identifying effective mitigation options. The model explicitly considered personal hygiene practices by food handlers as well as their activities and simulated a spatially explicit dynamic system representing complex interaction patterns among food handlers, facility environment, and foods. To demonstrate the utility of the model in a decision‐making context, we created a hypothetical case study and used it to compare different risk mitigation strategies for reducing contamination and spread of Listeria monocytogenes in a food facility. Model results indicated that areas with no direct contact with foods (e.g., loading dock and restroom) can serve as contamination niches and recontaminate areas that have direct contact with food products. Furthermore, food handlers’ behaviors, including, for example, hygiene and sanitation practices, can impact the persistence of microbial contamination in the facility environment and the spread of contamination to prepared foods. Using this case study, we also demonstrated benefits of an ABM framework for addressing food safety in a complex system in which emergent system‐level responses are predicted using a bottom‐up approach that observes individual agents (e.g., food handlers) and their behaviors. Our model can be applied to a wide variety of pathogens, food commodities, and activity patterns to evaluate efficacy of food‐safety management practices and quantify contamination reductions associated with proposed mitigation strategies in food facilities.     

三种运营模式下O2O外卖服务供应链质量努力策略研究

O2O外卖作为"互联网+"时代下的新型餐饮模式，日益受到人们的关注。本文研究的O2O外卖服务供应链由一个O2O外卖平台、一个餐饮商家和一个配送骑手构成。O2O外卖平台决策平台的服务质量努力和服务费用，餐饮商家决策产品价格，骑手决策配送服务质量努力程度，同时会受到来自平台或商家的服务质量激励。通过分析商家配送、平台配送和商家自建平台+配送三种运营模式，分别构建O2O外卖服务供应链成员的利润函数，运用博弈理论，优化得到不同模式下O2O外卖服务供应链成员的最优质量控制策略和最优利润。利用公式推导和对比分析，分别探讨了骑手激励金额上限和市场规模对服务供应链最优策略和最优利润的影响。通过数值仿真，可得结论：服务供应链各成员利润均随着市场规模的增大而增大，随着骑手激励金额上限的增加而先增大后减少。当市场规模较小时，平台配送模式下商家最优利润最大。而当市场规模较大时，商家自建平台+配送模式下商家最优利润最大。     

一生多半在车船--李笠翁“苦游”四海

李笠翁一生不断搬家和出游，自谓“一生多半在车船”，当是实录。单说长游，就有五次：最早的一次是康熙三四年间游粤；紧接着是康熙五至七年游京师连着游晋秦；回金陵住了一年多后，于康熙九年游闽；又隔一年，游楚；最后是康熙十二至十三年第二次游京师。此外，笠翁还在68岁高龄时，于贫病交加之中作了一次湖州之游。在别人，外出大都是“乐”游；而在笠翁，则是“苦”游。在别人，是衣食无忧，到外面长见识，增阅历，或观赏大自然的美景；而在笠翁，则是去“就食”，即像牧民“逐水草而居”找饭吃。别人是“吃饱了饭”去游玩“消食”；而笠翁却是“饿着肚子”出游“找食”，自谓“为饥驱而走四方”。当然，“苦”中有乐，“饥驱四方，遍历名胜”；同时也有收获———除“化缘”得“食”之外，还收获了诗文，也收获了友谊。但是，笠翁出游，“苦”是主打，“乐”是陪衬；“苦”是正业，“乐”是副产品。