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食品安全法制建设演变探讨
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作者 张云杰 姚一菲 廖祖晖 《黑龙江粮食》 2022年第10期126-128,共3页
食品安全关系到国计民生,是社会各界关注的焦点。新中国成立以来,食品安全相关法律法规和监督管理体系不断完善。1949年至1978年,是食品安全卫生法制的萌芽阶段,法律调整范围不够全面系统,形式不够规范统一;1978年至1993年,是食品安全... 食品安全关系到国计民生,是社会各界关注的焦点。新中国成立以来,食品安全相关法律法规和监督管理体系不断完善。1949年至1978年,是食品安全卫生法制的萌芽阶段,法律调整范围不够全面系统,形式不够规范统一;1978年至1993年,是食品安全法制建设的探索阶段逐步加强了食品卫生法制化管理,1994年至2013年,是食品安全法制建设的发展时期,步入了系统法制化的轨道;2014年至今,是食品安全法制建设的完善时期,“四个最严”要求逐步落实。我国食品安全法制建设发展历经萌芽、探索、发展、完善时期,食品安全法制建设逐步系统化体系化,严格制定和执行食品安全法律法规才是“国民舌尖上的安全”的重要保障。 展开更多
关键词 食品安全法制 食品监管机制 法制建设演变
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Understanding the evolution of learning by explicitly modeling learning mechanisms 被引量:1
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作者 Michal ARBILLY 《Current Zoology》 SCIE CAS CSCD 2015年第2期341-349,共9页
Models of the evolution of learning often assume that learning leads to the best solution to any task, and disregard the details of the learning and decision-making process along with its potential pitfalls. These mod... Models of the evolution of learning often assume that learning leads to the best solution to any task, and disregard the details of the learning and decision-making process along with its potential pitfalls. These models therefore do not explain in- stances in the animal behavior literature in which learning leads to maladaptive behaviors. In recent years a growing number of theoretical studies use explicit models of learning mechanisms, offering a fresh perspective on the issue by revealing the dynam- ics of information acquisition and biases arising from it. These models have pointed out possible learning rules and their adaptive value, and shown that the value of learning may crucially depend on such factors as the layout of the physical environment to be learned, the structure of the payoffs offered by different alternatives, the risk of failure, characteristics of the learner and social interactions. This review considers the merits of explicit modeling in studying the evolution of learning, describes the kinds of results that can only be obtained from this modeling approach, and outlines directions for future research . 展开更多
关键词 Agent-based simulation Learning bias Learning rule Decision rule COGNITION
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