Deterministic construction of compressed sensing matrices based on semilattices

A central problem in compressed sensing is the construction of sensing matrices. In this paper, we show how to construct sensing matrices by using semilattices, and give many examples of sensing matrices constructed from specific semilattices. Moreover, we show that the new construction for some examples with small parameters gives better sensing matrices compared with previously known constructions.     

Closure property of consistently varying random variables based on precise large deviation principles

Let X = {X₁, X₂, …} be a sequence of independent but not necessarily identically distributed random variables, and let η be a counting random variable independent of X. Consider randomly stopped sum S_η = ∑^η_{k = 1}X_k and random maximum S_(η) ? max?{S₀, …, S_η}. Assuming that each X_k belongs to the class of consistently varying distributions, on the basis of the well-known precise large deviation principles, we prove that the distributions of S_η and S_(η) belong to the same class under some mild conditions. Our approach is new and the obtained results are further studies of Kizinevi?, Sprindys, and ?iaulys (2016) and Andrulyt?, Manstavi?ius, and ?iaulys (2017).     

Tail asymptotic of discounted aggregate claims with compound dependence under risky investment

This paper considers the tail asymptotic of discounted aggregate claims with compound dependence under risky investment. The price of risky investment is modeled by a geometric Lévy process, while claims are modeled by a one-sided linear process whose innovations further obeying a so-called upper tail asymptotic independence. When the innovations are heavy tailed, we derive some uniform asymptotic formulas. The results show that the linear dependence has significant impact on the tail asymptotic of discounted aggregate claims but the upper tail asymptotic independence is negligible.     

Educational gradient of health in rural China

The aim of this paper is to examine whether and how rural residents’ educational attainment is associated with their self-rated health in China. Taking advantage of the National Exercise Facility Survey that was collected between December 2015 and March 2016, we find that educational attainment has a significant and positive correlation with self-rated health, net of the effects of age, gender, and geographical region. This correlation is mediated by factors such as perceived importance of exercise and healthy lifestyle. Relatively, people’s cognitive knowledge about health-related information and material resource access fail to play a significant mediating role. The findings highlight the non-material and non-cognitive attributes of educational attainment in shaping the gradient of health in the rural setting of China. Interventions that expand formal education to the mass and optimize teaching contents may offer an effective means to balance the health gradient.     

Vocational Experiences and Quality of Life of Migrants: Overview and Future Research

Quality of life is a complicated concept that has attracted broad attention from multiple disciplines. This article introduces a set of studies that employ diverse approaches to explore how work, vocational, and career experiences shape quality of life among migrants, and proposes a future agenda to extend this stream of research. Specifically, operationalizing quality of life in different ways, research showcased in this special issue has demonstrated how international and intranational migrants achieve, maintain, and enhance their well-being in different life domains. Reflecting on the literature and the showcased studies, this article proposes that future research should advance the current inquiry by better categorizing vocational experiences, uniquely operationalizing of quality of life in migration contexts, taking a more culturally sensitive perspective, and broadening methodological approaches.     

共享金融产业模式及其价值实现路径研究

共享金融模式具有缓解传统金融机构“流动性”困境以及发展普惠金融的作用,但存在监管滞后及不公平竞争等问题。需要从创新监管手段、开展行业自律,以及构建共享产业信用体系等方面入手,以共同推动共享金融模式的健康发展。     

以环境哲学为研究视域的文化自觉

以环境哲学为研究视域的文化自觉是站在明确的生态整体主义立场的学科文化自觉。它以哲学为衔接点，把环境与广义的文化联系在一起，努力为环境哲学寻求新的增长点。而弱的非人类中心主义观念作为观念侧翼，更细致地修复破碎染尘之人心。让人类有效地从社会走向自然，又从自然回归社会。审视以环境哲学为研究视域能否实现文化自觉？它必须立足以环境哲学的语境与方式思考文化自觉的可能与必然，并应用环境哲学的方法与逻辑阐释文化自觉的内涵与趋向。环境哲学所固有的自然之翼，是其学科存在的本质特征。但如若停滞于自然界的现象，而无文化元素的参与和交融，环境哲学的困顿将会在现象与抽象之间迷失。而文化元素的加入，又必须在自觉的前提下进行，它一方面是为融合确定边界，另一方面是为渗透找到根据。以对人类与自然界高度负责的精神，文化自觉与环境哲学都有着共同的使命：欣赏人与自然的和谐相处。     

论生产与交往的互动作用

生产与交往是人类社会活动相辅相成的两种基本属性,社会历史进步不仅取决于生产,还取决于交往,生产与交往相互作用共同推动社会历史进步,这是马克思主义唯物史观的一个基本原理,也是后发国家跨越发展的历史观基本前提。自觉遵循生产与交往互动规律,积极选择跨越发展方式,对于实现中华民族伟大复兴的中国梦意义重大。     

论商事合伙中的单独业务执行权和单独代表权

商事合伙的合伙人应当具有单独业务执行权和单独代表权,原则上每一合伙人均可单独执行合伙事务并代表合伙企业。虽然这对于商事合伙而言可能是危险的,但却是基于商事实践的理性选择,而且这种危险在很大程度上是可控的。我国应当确立这一模式。