属性集容量确定的夹挤式测度模式及其推算模型

迄今，为解决多属性偏好关联决策属性集容量判断指数复杂性难题所提出的λ模糊测度模式与k-可加模糊测度模式，以及建构在它们之上的属性集容量确定的推算模型，尚存在着适用性差的技术不足。为此，以平衡容量判断的可操作性和容量推算的准确性为视角，提出了一种新容量测度模式，即关于容量判断与推算的夹挤式测度模式，并在此基础上通过引入决策者较易判断给出的容量序信息构建了相应的容量推算模型。基于数值模拟的对比分析表明：新模式不仅在应用可行性上高于k-可加模糊测度模式，而且从容量推算的准确性上看也明显优于λ模糊测度模式和k-可加模糊测度模式，因而对实际决策具有更强的适用性。     

教育主体缺失视角下农村校园欺凌成因及治理

家庭、村庄和学校是农村学生成长过程中的三个重要教育主体，三者相辅相成共同构成农村教育主体结构。农村中小学生正是在该结构中获得成长，而农村校园欺凌事件的频发和多发则与其变化相关。农村教育主体结构的变化包括三个方面：一是家庭教育主体的缺位，表现为农村家庭隔代抚育的“不过问”逻辑；二是村庄教育主体的缺位，表现为村庄交往中的村民相互“不得罪”的逻辑；三是学校主体的缺位，表现为学校管理中官僚主义的“不出事”逻辑。这些主体行为逻辑的变化，进而带来了三者之间良性互动的阻隔，包括家庭与学校勾连的中断、村庄对学生和家庭监管的缺位，以及学校对农村社会的脱嵌。治理农村校园欺凌事件，除了法制和规范进校之外，还要搭建新型的教育主体结构，形成多元化、多主体农村校园欺凌的治理格局。     

The effectiveness of a group-based educational program on the self-efficacy and self-acceptance of menopausal women: A randomized controlled trial

This study aimed to assess the effectiveness of a group-based educational training on the self-efficacy and self-acceptance of Iranian menopausal women using the PRECEDE–PROCEED model. This Randomized Controlled Trial (RCT) was conducted on 80 menopausal women in the age range of 47–55 years residing in the northeast of Iran. The participants were divided randomly into a test group (n = 40) and a control group (n = 40). We found that designing and implementation of a group-based educational training according to the PRECEDE–PROCEED model can significantly enhance the knowledge and performance of the test group with regard to self-efficacy and self-acceptance.     

人工智能时代企业管理变革的逻辑与分析框架

人工智能作为社会发展和技术创新的产物,已经成为新一轮科技创新和产业变革的核心驱动力,正在对世界经济、社会进步和人民生活产生极其深刻的影响。人工智能的商业应用会改变企业内部运作和生产经营的过程,为企业管理带来了诸多挑战和变革机遇。本文结合人工智能的特征与发展趋势,从管理对象、管理属性、管理决策和管理伦理四个方面对人工智能时代企业管理变革的逻辑进行了梳理,得出如下推论:第一,人工智能时代,被管理者将出现越来越多的"人工智能员工",以"社会人"为中心的管理理论和管理手段的适用性降低,如何管理"人工智能员工"以及协调人类员工与智能机器人的关系将对管理者提出挑战;第二,人工智能时代,管理属性不仅包括管理理论的科学性、管理实践的艺术性,还包括管理过程的技术性;第三,人工智能时代,将出现一批优秀的技术管理者,此时,技术管理者指的不是管理技术的人,而是掌握智能技术的管理者;第四,人工智能时代,管理者的决策环境得到优化,管理活动中的决策准则将由"满意决策"过渡为"最优决策";第五,人工智能时代,管理手段的智能化发展可能会加剧管理效率和管理伦理的冲突,管理者必须提升管理道德,经营过程中强化社会责任的履行;第六,随着人工智能技术发展,政府、社会团体和行业协会有必要从政策、法律与行业标准等多个方面构建人工智能发展伦理的多层次约束机制。     

Textbook Affordability in the Time of COVID-19

Abstract

This article provides a background of the textbook affordability problem affecting students attending United States higher education institutions, both prior to and during the 2019 novel coronavirus disease (COVID-19) pandemic, as well as potential solutions to the problem. Solutions discussed include the availability of open materials in online repositories, publisher responses like inclusive access, institutional incentive programs, and initiatives by library consortia or other statewide programs. The responses of various stakeholders to make textbooks accessible to students during the pandemic are also covered.     

The intergenerational transmission of income mobility between mothers and their young adult daughters: The mediating role of their daughters' educational attainment

This study examines whether the daughters' educational attainment mediates the intergenerational transmission of economic mobility between mothers and their young adult daughters. To create mother–daughter dyads, two data sets were combined: The National Longitudinal Survey of Youth 1979 (NLSY79) and the National Longitudinal Survey of Youth 79 for Children and Young Adults (NLSY79 CY). A total of 2,456 dyads were included for analysis. We used a mediation model to explore the relationship between mothers' income and their young adult daughters' income. Mothers' income was associated with their young adult daughters' educational attainment and income. The mediation model indicated partial mediation of the relationship between mothers' income and their young adult daughters' income via their young adult daughters' educational attainment. Addressing issues of income inequality among mothers may serve as a buffer against the low upward mobility across generations for their young adult daughters raised by low-income mothers. It is imperative to provide programs and financial assistance for mothers to bolster their income and thereby their daughters' educational attainment and income in young adulthood and therefore improve economic mobility from mothers to daughters.     

就业优先:以"公平而有质量"的教育 在民族地区阻断贫困代际传递

“发展教育脱贫一批”是在民族地区实现共同富裕的重要方针。然而在“教育改变命运”的共识之外，布迪厄认为教育一代代地维持着对社会中下阶层的不公平的“文化再生产”理论，被一些学者应用于对我国少数民族教育的研究。如在“三区三州”等民族地区，代际间的贫困传递难以阻断，因家庭文化资本弱势而造成子女求学、求职受阻，看似可用“贫困文化的再生产”予以概括，但笔者不同意直接套用西方理论认定中国存在“教育不公平”的论述。因为我国社会实际与布氏提出“学校教育再生产社会阶层结构”观点之环境不同，有多项教育政策在切实保障着少数民族通过“教育改变命运”——当前在我国民族地区实现教育公平的主要障碍，并非 “文化再生产”的结构性阻力，而在于就业环节的阶段性困难。教育公平可分为起点、过程和结果三个环节，民族地区经多年教育扶贫，“起点”入学机会和“过程”教育质量已明显改善，而作为“结果”的就业环节亟待改善。以“就业优先”方针多渠道扩大少数民族就业，可激发内生动力、促进市场融入、巩固减贫成效和精准防控返贫，是助少数民族自主掌握教育“社会阶梯”和阻断贫困代际传递的有效路径。     

Modified chain sampling plans for lot inspection by variables and attributes

The purpose of acceptance sampling is to develop decision rules to accept or reject production lots based on sample data. When testing is destructive or expensive, dependent sampling procedures cumulate results from several preceding lots. This chaining of past lot results reduces the required size of the samples. A large part of these procedures only chain past lot results when defects are found in the current sample. However, such selective use of past lot results only achieves a limited reduction of sample sizes. In this article, a modified approach for chaining past lot results is proposed that is less selective in its use of quality history and, as a result, requires a smaller sample size than the one required for commonly used dependent sampling procedures, such as multiple dependent sampling plans and chain sampling plans of Dodge. The proposed plans are applicable for inspection by attributes and inspection by variables. Several properties of their operating characteristic-curves are derived, and search procedures are given to select such modified chain sampling plans by using the two-point method.     

论数字货币的私法性质——以日本Bitcoin.Cafe数字货币交易所破产案为中心

数字货币，是一种具有财产性价值属性的电磁记录型数据。数字货币在其依存的区块链体系中所彰显的与不特定者之间的支付对价性、与法定货币之间的互换性、使用电子信息处理系统进行转移的在线转移性等特点，得以从数据说的角度，将其作为一种数据性财产权在现行法律框架内对其私法性质进行讨论。有鉴于我国民法总则已将数据纳入保护客体的范畴，数字货币作为数据之一种，理应成为一种新型法律客体，在得到法律理论支撑的基础上获得保护。