需求分布规律变化情况下的报童订货策略

在需求分布规律变化情况下,报童在进行订货决策时会因为错误判断需求分布规律而导致期望库存成本增加。为了解决这一问题,本文集成传统历史需求信息和非传统需求信息以正确地认知需求分布规律,在此基础上决策订货量。假设需求服从均值不同、方差相同的两种类型的正态分布,每一种正态分布的概率已知。利用信号检测理论构建基于历史需求信息与需求分布概率的报童最优订货策略,并与只基于需求分布概率的直觉规则订货策略进行对比。结果表明：只要排除需求分布概率很大或很小两种极端情况,最优订货策略比直觉规则订货策略在控制期望库存成本方面的作用更明显,即利用历史需求信息可以有效修正报童对实际需求分布的检测结果,从而提高实际订货决策的准确性。研究结果对传统历史需求信息和非传统需求信息的集成以及需求信息交换等有一定的管理学启示和应用价值。     

When children’s testimonies are used as evidence: how children’s accounts may impact child custodial decisions

Abstract

In child custody cases, children oftentimes provide allegations of experienced trauma against one of their parents. Such allegations can happen before any investigative interviews (e.g., by the police or child protective services) have taken place. A central theme here concerns how to appraise such allegations and make certain that children’s accounts are taken seriously. In the current special issue, the focus is on new work on the functioning of children’s memory and its relation to trauma or work on children’s suggestibility and memory when they are traumatized. Specifically, key experts in the field of children’s memory provided contributions on: (1) the impact of interviewer support and rapport building on children’s testimonies, (2) the role of parental alienation in children’s testimonial accuracy, and (3) different types of false memories in children’s memory reports.     

Are children better witnesses than adolescents? Developmental trends in different false memory paradigms

Abstract

The current study compared older children’s (11/12-year-olds) and adolescents’ (14/15-year-olds) vulnerability to false memory creation using two different methods (i.e., the Deese/Roediger-McDermott [DRM] and memory conformity paradigms) involving neutral and negative stimuli. In line with previous research, a developmental reversal effect was found for the DRM paradigm, which means that when employing this method children displayed lower false memory levels than adolescents. However, when using the memory conformity paradigm, the opposite pattern was found, with adolescents forming fewer false memories than children. This indicates that in a co-witness context, adolescents are less prone to memory errors than children. The emotional valence of the stimuli used in both paradigms did not notably affect the production of false memories. There was no statistically significant correlation between false memories as measured by the DRM and the memory conformity paradigms. Altogether, the current study indicates that there is no single type of false memory as different experimental paradigms evoke different types of erroneous recollections. Additionally, our study corroborates past findings in the literature concerning the issue of developmental reversal, strengthening the idea that under certain circumstances children might indeed be better witnesses than adolescents.     

The Registers of Liberated Africans of the Havana Slave Trade Commission: Implementation and Policy, 1824–1841

The Registers of Liberated Africans that were compiled in the course of British anti-slave trade suppression contain detailed biographical information for individuals who were liberated from slave ships according to international law. These records are invaluable for an analysis of the demography of the trans-Atlantic slave trade, and hence it is necessary to assess critically their generation, including who made them and for what reasons. By focusing on the Havana Slave Trade Commission between 1824 and 1841, this essay provides an overview of the registration process of over 10,000 Africans, the structure of the Mixed Commission court, and details on the court officials, including a list of 162 African-born interpreters that resulted in the issuance of emancipation certificates to thousands of Liberated Africans who were subsequently subjected to terms of apprenticeship negotiated by the British and Spanish governments.     

Characteristics of atmospheric PM2.5 in stands and non-forest cover sites across urban-rural areas in Beijing,China

Urban Ecosystems - Monitoring air pollution at a city scale is essential for controlling urban air pollution in cities, especially megacities, in China. In this paper, data for 1 city center site...     

程敏政“道一”论与阳明心学的形成

探究明朝中期王阳明心学思想的成因,是宋明理学研究的重要议题。阳明心学之源既有远承孟子和陆九渊的心学因素,也有同时代周边学者的商讨切磋之功。而作为王阳明的座主,程敏政以"道具于心"的"道一"思想,曾深刻地影响了王阳明学术的致思趋向,为心学的兴起导引先路,提供了契机。可以说,程敏政"道一"论是阳明心学形成的源头之一。     

河北省城市化发展路径分析

为加快推进河北省城市化战略的实施,本文提出了加强产业园区建设,优化城市总体布局,加快市政公用事业的市场化进程,消除农民进城的各种制度障碍的政策性思路。     

明清两代的公罪与私罪制度

中国古代将官吏犯罪区分为公罪和私罪,其目的是为了维护吏治的清明。明清两代的律、例、令、会典等条文中就有对公罪和私罪的相应规定。本文从明清两代的公罪与私罪的基本概念、具体规定、实际运行和影响因素四个方面对这一制度进行深入分析,以期对之有更加全面的认识。     

欧盟"多功能农业"探析

自20世纪90年代以来,“多功能农业”越来越引起世界的关注,欧共体/欧盟在“多功能农业”的发展过程中扮演着重要的角色,它积极支持、广泛推广这一新型的农业模式。本文在说明“多功能农业”的提出过程、内涵、具体措施的基础上,分析欧共体/欧盟提出“多功能农业”的原因。     

文话研究引论

文话是我国古代文学批评的重要学术资源,它肇始于宋代,经历了发展演进、繁荣变革和融汇总结三个发展阶段,内容丰富,形式多样,对推动文学因革和文章衍变发挥了重要作用。由于学术关注的缺失,文话长期处于无人问津的境地,而《历代文话》的问世则为文话研究提供了良好的契机。从文话与文学、科举之间密切的互动关系入手,揭示文话在文学批评和文章学上的独特贡献将成为一个新的学术增长点。