反周期J-自伴Hill算子的谱

给出了带有复值周期系数q（x）=^∞Σk=1ake^ikx（其中^∞Σk=1∣ak∣〈∞）的常型J-自伴Hill算子在反周期边界条件下的Floquet判别式及其谱.     

Organizational Sustainability and Systemic Boundary Processes

Abstract

Every day, managers work to sustain the organizations wherein they work. In this article, the authors examine certain systemic boundary processes that are intrinsic to organizations and their sustainability. For readers of this journal, whose name points to the inherent connection between organizations and society, the authors present an argument that organizational boundary processes and their influence on organizational sustainability are important considerations for those of us interested in a viable future for our society. The importance of these processes for managers also is indicated.     

无套利分析在非完美条件下远期合约定价中的运用

无套利分析方法是现代金融理论的基石之一,已成为金融衍生品定价的一种重要方法,传统的金融工程教科书很少涉及非完美条件下远期合约的定价问题。在介绍无套利分析方法的基础上,通过现金流复制技术,研究了三种非完美条件下远期合约的定价问题。     

死刑存废新考

在当今中国刑法理论界,废除死刑的主张似呈压倒之势.但是,以往的和现有的废除死刑的理由正是保留死刑的理由.因此,死刑的存废来不得一相情愿.当今中国的死刑问题应在理智、谨慎和务实中得到解答.而社会不再需要死刑之时便是死刑死亡之日.     

一类n阶非线性微分方程多点边值问题解的唯一性

本文利用Leray-Schauder度理论建立了n阶非线性微分方程y(n)=f(x,y,y′,…y(n-1)),0     

Theorizing the lesbian hashtag: Identity,community, and the technological imperative to name the sexual self

This analysis integrates poststructuralist and symbolic interactionist approaches to the self by incorporating the insights of science and technology studies regarding categorization processes. While the advent of the Internet has freed many individuals from geographical constraints on community formation, the architectures of online platforms produce a technological imperative to name aspects of the self with words. Using sexual identity hashtags on Instagram (e.g., #lesbian) thus performs paradoxical functions: the hashtag both enables the construction of a sexual identity within an affirming community and also reinforces the power relations that compel individuals to name and account for their sexual selves. By illustrating one way sexual identities function in the online lives of young women, this research complicates other scholars' findings that the salience of sexual identity categories is decreasing.     

RESEARCH NOTE Some evidence against the assumption that approval of family planning is associated with frequency of spouses' discussion of the subject

Much previous work on the relationship between respondent's reported frequency of discussion with spouse about family planning and correctness of reporting spouse's approval of family planning has led to the conclusion that discussion promotes approval. In this paper, data from the 1998 Kenya Demographic and Health Surveys are used to show that a focus on the relationship between frequency of discussion and correctness of reporting partner's disapproval of family planning leads to sceptical conclusions about the effects of discussion in improving knowledge of partner's attitude or in promoting approval.     

边界沉思

提出一种关于一类感知反应系统演化的边界研究思路和方法,其主要内容为:系统的复杂性主要是由系统与环境之间的相互作用关系产生的,因此在系统边界上聚集着关于系统演化的重要特性;系统中的捕获力和游离力之间的竞争造就了一条"色谱边界”,其中包含着极其丰富的层次性;"色谱边界”上的要素以感知反应的方式推动系统的结构重组,从而促使系统实现突现或塌陷,完成一次演化过程.     

薄环形相对论电子注介质切伦可夫脉塞

轴向电子注通过介质慢波系统，当波的相速略低于电子注的速度时就可产生相干的切伦可夫辐射，这一现象是一切行波管的基础。本文利用线性理论，通过自洽求解粒子连续性方程和相对论运动方程与麦克斯韦方程组，分析了薄环形相对论电子注介质切伦可夫脉塞的注波互作用，得到了完全描述其薄环形电子注作用的跳变条件，导出了描述其不稳定性的色散方程和注波互作用的同步条件，并求得了波增长率。     

对正当防卫主观条件的反思--从一则案例谈起

保护"非法利益"的防卫行为能否构成正当防卫,这一问题不仅在犯罪客体复杂性的视角上有厘清之必要,而且即使就单纯的保护"非法利益"的防卫行为而言,也可以构成正当防卫.通过对正当防卫的法条、相关理论、实质、立法价值取向以及正当性标准的剖析,对正当防卫主观条件的传统理论进行了反思,提出了挑战.