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锥规划的最优解唯一的几何特性 总被引:11,自引:0,他引:11
从几何的观点描述一对原始-对偶锥规划可行城的极点,给出原始-对偶非退化的最优解与严格互补的最优解之间的关系,从而得到锥规划最优解唯一的条件. 相似文献
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Mikaela Luttrell-Rowland 《British Journal of Sociology of Education》2016,37(3):335-349
This paper examines the importance of ‘self-determination’ and ‘hard work’ found within interviews with a group of young people in Manchester, England. The author suggests that moments of apparent contradiction within the interviews have much to offer, particularly when analysed in relation to discussions of inequality and political economy. Data from this paper show that while the young people mostly spoke about work choices in primarily individualistic ways, they used the recession as a means to acknowledge that acquiring jobs simply cannot just be about ‘choice’ or working hard, but is also configured by the market and structural inequality. 相似文献
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Lindsay Dillingham 《Journal of Business & Finance Librarianship》2013,18(4):313-327
This study explores the attitudes and actions of bank managers toward communication spending during recession. Results of this study indicate that organizational leaders cut communication spending early during recession and also erroneously rely on the bank's financials to mitigate irrational customer withdrawals. This research is used to illustrate the need for public librarians to meet the needs of bank stakeholders when their institution ceases to communicate during crises, for academic librarians to educate students in undergraduate and graduate programs regarding heightened information needs during recession, and for corporate librarians to understand a potential avenue for competitive advantage during recession. 相似文献
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An expansion in higher education in combination with the recent global economic recession has resulted in a high college graduate unemployment rate in Taiwan. This study investigates how the high unemployment rate and financial constraints caused by economic cutbacks have shaped undergraduates’ class choices, job needs, and future income expectations. Therein, the results obtained from a structural equation model indicate that students whose expenditures were most affected by the economic recession were in greater need of paid employment and were also more likely to take practical and credential courses, which resulted in heavier course loads. Clearly, the economic downturn and the consequential high unemployment rate have directed undergraduates to select more practical education, wherein they now prefer classes that are more likely to increase their employability. The results obtained in this study indicate that people use college courses to enhance their competencies and employability. Finally, regardless of the economic situation, female undergraduates expected significantly lower pay after graduation in comparison to their male counterparts. 相似文献
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2010年美国图书馆状况报告 总被引:2,自引:0,他引:2
经济衰退使越来越多的人求助于图书馆,查找求职、进修的资源和获取政府服务.图书馆的业务量在增长,但是经费却日益紧张.同时,公共图书馆因特网的使用正在蓬勃发展,图书馆在提供越来越多的电子资源,并且提供无线访问.学校图书馆在全国调查中也有较好的成绩. 相似文献
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Jon Baggaley 《Distance Education》2010,31(1):115-119
Imaginary worlds have been devised by artists and commentators for centuries to focus satirical attention on society’s problems. The increasing sophistication of three‐dimensional graphics software is generating comparable ‘virtual worlds’ for educational usage. Can such worlds play a satirical role suggesting developments in distance education practice and policy? The article examines the emergence of Hinterlife, a cartoon world run by a disarmingly despotic academic known to the real world only by his virtual name, Professor Horace. This article suggests that a healthy dose of satire can help distance education to overcome the problems generated in difficult economic times. 相似文献
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田蕾 《海南师范大学学报(社会科学版)》2014,(3):32-37
“行走”是《无边的游荡》创作的核心意象,张炜将其惯有的浪漫诗情和繁茂的生命力植根于苍野大地之上,以后撤求索的方式同现代性对话,在永不停歇的行走与对话中追寻精神的救赎和生命的皈依。 相似文献
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最近的经济衰退对美国高等教育构成了严峻的挑战.本文介绍经济衰退对美国高等教育财政的影响,概述美国联邦政府、州级政府和高等院校应对经济衰退的策略以及经济衰退对高等教育入学机会和大学生学业的消极影响,并探讨经济衰退中的美国高等教育状况对高等教育管理和高等院校战略规划的启示. 相似文献
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发达国家老工业基地调整与改造的成功经验及其对我国的启示 总被引:1,自引:0,他引:1
自20世纪50年代末开始,英、法、德、美等发达国家陆续出现了老工业基地衰退的表征。为了调整与改造老工业基地,各国都制定和采取了相应的政策和措施,并取得了许多成功的经验:成立专司部门、机构,制定和实施老工业基地调整与改造的战略规划;政府从产业政策、资金、技术等方面予以支持与援助;进行产业部门结构、产业组织结构的调整;注重环境的治理和保护等。借鉴这些成功经验,并结合我国东北老工业基地的区情、省情,采取有效的对策和具体措施,借以加快我国东北老工业基地的全面振兴。 相似文献