等价类划分测试用例设计

等价类划分是黑盒测试的典型方法之一，通过把被测试程序所有可能的输入数据域划分成若干部分。从每一部分中选取少数有代表性的数据作为测试用例，可有效减少测试次数，极大提高软件测试效率，缩短软件开发周期．     

由红到黑：对闻一多诗歌意象的一种阐释

闻一多研习美术多年，对色彩极为敏感，尤其是红色和黑色，是他的诗作当中的具有象征意义的重要颜色。前期的闻一多营造了一个以美和爱为中心的“红色”意象群，后期则偏重于创造“死亡”、“鬼”等的“黑色”意象世界。以红色追求理想、真理，以黑色加深文本的现代意义。意象的由“红”到“黑”，显示了诗人审美取向及文化取向甚至人生道路的转向与深入。     

世界田径赛场黑人运动员优势成因探析

运用文献资料法,对于大批超一流的黑人运动员控制着世界田径赛场的现象进行分析后认为:黑人运动员的这种优势形成,不仅凭借着他们的得天独厚的种族、身体结构特征和生理功能优势,还与其社会背景、经济利益、自然地理环境、黑人的心理及科学训练等诸方面因素密切相关.     

黑陶工艺品表面装饰的创新与发展

黑陶工艺品虽以其独特的魅力为人们所青睐,在造型和制作上各有千秋,但在装饰上仍以素面为主。一种既具有云南民族特点,又具有现代时尚造型元素和新型的表面金属化装饰的系列黑陶工艺品的研制已获成功,从而使精美的黑陶艺术品丰富了现代文化的需求,使传统的黑陶工艺品得以创新和发展。     

A site of struggle: Black academics at historically white universities in South Africa

Abstract

This article examines the identities of three black academics at historically white universities in South Africa. Three portraits that highlight politics within the professoriate as constituting a site for struggle are crafted. The wish is to shift the present focus in the South African literature by addressing the variety and complexity of black academics' everyday involvement in their oppression, demonstrating how that works. The analyses are set against the background of globalisation and the transformation of higher education worldwide. It is argued that the future of tertiary education in South Africa and elsewhere is likely to be influenced by battles within the academy about issues of diversity in regard to race, class and gender. Its outcomes are far from predictable.     

Electrochemical behavior of insulin on pretreated carbon black electrode enhanced with silicon carbide nanostructure

We previously reported the direct electrochemical detection of insulin at bare carbon electrodes. Here a novel modified acetylene carbon black paste electrode(SiC/CB-CPE), based on the outstanding characteristics of silicon carbide nanostructure,was developed for the electrooxidation of insulin in alkaline solution and it was characterized by cyclic voltammetry(CV) and electrochemical impedance spectroscopy(EIS) in 5 mmol/L Fe(CN)63-/4- solution. It is found that silicon carbide nanostructure doped into the CB-CPE greatly facilitates the redox electrochemistry of Fe(CN)63-/4- probe and the electrochemical oxidation of insulin. The electrooxidation of insulin is a one-electron and one-proton reaction and an irreversible adsorption-controlled electrode process. The anodic oxidation current increases linearly with the concentration of insulin from 1×10-7mol/L to1.2×10-6mol/L in 0.1 mol/L Na2CO3-NaHCO3 buffer solution(pH 10.0) and the detection limit was 50 nmol/L. In addition, the SiC/CB-CPE shows good sensitivity, reproducibility, renewability and capacity of resisting disturbance.     

中世纪英国政府对黑死病的反应及应对措施

面对黑死病疾风暴雨式的肆虐,为了维持与安定社会统治秩序,英国教俗两界权力组织都采取了诸多的应对措施。中世纪的欧洲社会,基督教教会所拥有的社会感召力和控制力,使其在瘟疫降临之际首当其冲。以英王为首的世俗权力,在黑死病肆虐期间采取积极的应对措施,其价值极其值得关注。英国政府在此期间的基本理念是“敬天命,尽人事”,积极地发挥政府职能作用。     

Slavery,Abolition, and Columbia University

Abstract

Institutional archivists can create finding aid tools for their collections that address timely and specific historical issues, such as connections to slavery profits, to manumission, and to anti-slavery and abolitionism. This article takes as its premise a Yale slavery web site of 2001, which drew some startling conclusions that were new answers to some very old questions about the relationships between slavery and the founders of institutions in the colonial and Revolutionary period. Slavery was ubiquitous in the North and a common thread among the founders of many kinds of institutions, colleges included. Institutional archivists can assist in identifying timely questions about momentous events and cultural issues by drawing attention to available resources, and by finding the answers.     

Mary Garber's Coverage of Black Sports in the US Segregated South, 1944–1964

This paper addresses the gap in literature that ignores sport as practiced, managed or communicated by women by focusing on sportswriter Mary Garber, and the meanings engendered through her coverage of black high school and collegiate athletics in the Twin City Sentinel of Winston-Salem, North Carolina, during the mid-1940s through early 1960s. She received numerous prestigious awards during a career that spanned seven decades, but limited historical treatises examine this influential figure. Few scholars have attempted to understand the history of women in this male-dominated field or the sociocultural forces and obstacles that contextualise and hinder their contributions. It is a sad irony that Garber was atypical for her time, and remains so in the contemporary climate. Therefore, one major objective of this paper is to create a discourse through Garber's body of work that will help to eradicate the gender inequalities of women in sport media. In contrast with representations of women and racial minorities in mainstream sport media, this paper demonstrates that Garber addressed pertinent social concerns and supplemented dominant ideological content with more inclusive depictions of the population she covered by resisting white, masculine, heteronormative assumptions about which sports and athletes merit attention.1 ^1. I use ‘black’, ‘African-American’ and ‘white’ throughout the paper not to reinforce false notions of race as an innate biological trait, but to refer to the ways ‘race’ has been socially constructed with real, material effects.     

生态女性主义视角下的《紫色》

美国黑人女作家爱丽丝·沃克的作品关注黑人女性及自然的命运,本文试用生态女性主义分析小说《紫色》,体现在父权社会下黑人女性与自然同时受到了男性的压迫,批判二元论的男性中心主义思想,呼吁建立一个男女平等,人与自然和谐相处的社会。