基于可拓数学的县级生态经济系统可持续发展评价研究

应用可拓数学方法和主成分分析方法，建立了县级生态经济系统可持续发展评价物元模型，模型的输出结果表明其生态经济系统可持续性偏弱。并结合实际，提出对策及建议。     

戏曲艺术视域中的现代生活题材——兼论齐如山戏曲艺术改革理论

迄今为止,现代生活题材的戏曲剧目大多没能走出话剧加唱式窠臼,传统戏曲艺术中的身段和念白在这类剧作中却丢失了大半。因此,话剧加唱式的戏曲改革模式是不成功的。为了突破这种模式的束缚,很有必要重温齐如山的戏曲改革理论。他认为,戏曲艺术的本质是以歌、舞为艺术语言的写意性艺术,戏曲改革的出发点和最终归宿应当是强化、突出戏曲艺术的这种因素,因而他强调现代生活题材的戏曲艺术更要突出这一特点。深入研究、合理利用齐如山的这一理论,在排演现代生活题材的戏曲剧目时可以大有作为。     

Communicating Research to Policymakers

This piece offers suggestions based on some things we expected to learn and from some things we did not expect to learn about communicating research to congressional policymakers. Some of these are insider discoveries from working as a professional staff member for a joint committee of the US Senate and the US House of Representatives. Other things we learned came largely as surprises from attempts to provide basic information and issue awareness about socioeconomic conditions in the Southern Black Belt directly to the Congress as well as indirectly through public interest and grassroots groups. One of the surprising discoveries, working professionally both on the inside of Congress and on the outside as social scientists, is how well social interaction actually works. And there were other surprises as well. This article is based on an August 16 panel presentation by the first author at the 2003 meeting of the American Sociological Association in Atlanta. The panel was organized by Larry Burmeister of the University of Kentucky. Material written in the first person singular in the first section of this article, “From the Inside,” is from the first author’s experiences. Later, portions of the text beginning with the subhead, “On the Outside,” and stated in the first person plural are by both authors.     

不同文体对同一题材的表现比较——从《长恨歌》到《长生殿》

文章描述了《长恨歌》、《长恨歌传》、《杨太真外传》、《唐明皇秋夜梧桐雨》、《长生殿》在情节、人物和主题上的增设和演变,辨析了作为文学题材的李杨故事与史实的出入,比较了诗歌、小说和戏曲对表现同一题材在文体上的若干差异。     

试析努比亚人在埃及的统治

埃及与努比亚在地理上是近邻关系,历史上一直保持着千丝万缕的联系,不过在二者的交往中往往都是埃及处于优势地位.但到公元前8世纪,努比亚人征服了埃及,进而将埃及与努比亚合并成一个国家,建立了埃及史上的第25王朝.从起源上看,这个王朝是正统的努比亚王朝,但在统治方式上却没有"一刀切",既照顾到了埃及人的习惯,又凸显了努比亚的特色.无论在王权标志、行政、宗教、文化还是对外关系上都是如此,既体现了其统治的灵活性,也实现了两种文明的融合.     

Black women’s mental health matters: Theoretical perspectives and future directions

Despite recent sociological research exploring how stratification systems impinge on the health of socially disadvantaged populations, Black women’s mental health is rarely a topic of investigation among scholars of medical sociology, sociology of race and racism, or sociology of gender. In this review, we incorporate perspectives from sociology, social psychiatry, psychology, and social work to develop a transdisciplinary intersectional model of Black women’s mental health. We also present critical interventions in the extant literature. First, though stress exposure is generally associated with poor mental health, more research is necessary to ascertain the gendered-racialized stressors to which Black women are exposed, owing to their racial and gender oppression. Second, we admonish mental health scholars to incorporate other status dimensions (e.g., nativity, sexual orientation, age) to provide a more nuanced depiction of Black women’s psychological health. Third, the unique and enduring relationship between the U.S. punishment system and the mental health of Black women should be further explicated in future research. Last, we envision a body of work on Black women’s mental health that captures the ways in which they cope with societal level marginalization, as these forms of resilience and resistance may be mental health protective.     

Using Uncertainty Analysis to Improve Consistency in Regulatory Assessments of Criteria Pollutant Standards

Regulatory impact analyses (RIAs), required for new major federal regulations, are often criticized for not incorporating epistemic uncertainties into their quantitative estimates of benefits and costs. “Integrated uncertainty analysis,” which relies on subjective judgments about epistemic uncertainty to quantitatively combine epistemic and statistical uncertainties, is often prescribed. This article identifies an additional source for subjective judgment regarding a key epistemic uncertainty in RIAs for National Ambient Air Quality Standards (NAAQS)—the regulator's degree of confidence in continuation of the relationship between pollutant concentration and health effects at varying concentration levels. An illustrative example is provided based on the 2013 decision on the NAAQS for fine particulate matter (PM_2.5). It shows how the regulator's justification for setting that NAAQS was structured around the regulator's subjective confidence in the continuation of health risks at different concentration levels, and it illustrates how such expressions of uncertainty might be directly incorporated into the risk reduction calculations used in the rule's RIA. The resulting confidence-weighted quantitative risk estimates are found to be substantially different from those in the RIA for that rule. This approach for accounting for an important source of subjective uncertainty also offers the advantage of establishing consistency between the scientific assumptions underlying RIA risk and benefit estimates and the science-based judgments developed when deciding on the relevant standards for important air pollutants such as PM_2.5.     

“I Will Be Out There Every Day Strong!” Protest Policing and Future Activism Among Ferguson and Baltimore Protesters

An established body of literature shows that people engage in protest events for a number of reasons, including grievances, collective identity, increased efficacy, and emotions. However, it is unclear what happens to individuals’ motivation toward protest participation as they experience the reality of repressive policing. This study contributes to the theoretical body of knowledge of protest policing and social movements by investigating the microlevel processes that affect protest participation. Specifically, we build from the insights of previous research by examining how 102 Ferguson and Baltimore protesters with varying levels of commitment—revolutionary, intermittent, tourist—experienced repressive policing and how such tactics affected their subsequent decision to engage in future activism. Our findings suggest that those with the strongest commitment toward protest goals experienced the most repressive tactics, and yet did not seem to be deterred in their motivation to be engaged in future protests. In contrast, while repressive tactics appeared to deter the less committed individuals from street protests, they remained motivated to engage in other forms of civic engagement.     

读《为什么餐厅里的黑人孩子都坐在一起》——兼论该书对构建中国和谐族群关系的启示

本文对塔特姆(Beverly Danjel Tatum)教授<为什么餐厅里的黑人孩子都坐在一起>一书进行了简要介绍.塔特姆指出,种族歧视是一种体系优势.通过对白人背景下黑人、白人以及其他有色人种特质的精辟分析,她深刻地揭示了美国种族关系的实质,并提出了"促进跨种族对话"来打破沉默的建议.塔特姆的理论观点对于中国的族群关系建设有重要启示.在新的时代背景下,中国不仅要在中华民族背景下了解少数民族,也要在中华民族背景下了解汉族.     

The homotopy perturbation method for the Black–Scholes equation

The homotopy perturbation method is designed to obtain a quick and accurate solution to the Black–Scholes equation and boundary conditions for a European option pricing problem. The problem of pricing a European option can be cast a partial differential equation. The analytical solution of the equation is calculated in the form of a convergent power series with easily computable components.