Downsizing for downtown: limb lengths,toe lengths,and scale counts decrease with urbanization in western fence lizards (Sceloporus occidentalis)

Urban Ecosystems - Urbanization-induced habitat loss and alteration causes significant challenges for the survival of many species. Identifying how species respond to urbanization can yield...     

Effects of variations in water quantity and quality in the structure and functions of invertebrates’ community of a Mediterranean urban stream

Urban Ecosystems - Urban streams provide important ecosystem services to cities’ population, from the maintenance of urban biodiversity, temperature, humidity and air quality to improving...     

远海岛礁冷链物流体系优化模型及其集成算法

为研究远海岛礁渔获冷链物流的运行方案,本文选择了岛礁冷库储存中转和海上直接收购等两种不同的渔获运输方式,同时考虑了中转冷库选址、中转运输和直接收购船舶配备、航线配置、在渔场停留时间和渔获运输损耗等诸多复杂问题,构建了远海冷链物流体系组合优化模型。求解时,提出了一种以遗传算法（GA）为外部框架,以改进的模拟植物生长算法（PGSA）为内部模块,通过信息传递实现内外连接交互的集成算法。最后,以我国南海远海岛礁及渔场为实例进行分析,取得了较好效果。通过与传统遗传算法对比,本文优化结果、稳定性及计算速度等均有明显提高,从而证明了本文所建模型与算法的合理性和有效性。     

M&A and diversification strategies: what effect on quality of inventive activity?

Journal of Management and Governance - The aim of this paper is to examine how an acquirer’s diversification strategy shapes the multiple dimensions of inventive activity. Differing from...     

Altruism, Spite and Competition in Bargaining Games

This paper shows that altruism may be beneficial in bargaining when there is competition for bargaining partners. In a game with random proposers, the most altruistic player has the highest material payoff if players are sufficiently patient. However, this advantage is eroded as the discount factor increases, and if players are perfectly patient altruism and spite become irrelevant for material payoffs.     

显性教育与隐性教育并举增强“基础”课教学实效性

提高"思想道德修养与法律基础"课教学实效性是全社会、高校和"基础"课教师共同关心的重要问题。将显性教育与隐性教育并举,是一条行之有效的途径。显性教育要确立"以学生为本"的理念,拓展教学内容给予学生足够的现实关怀,丰富教学方式以提升学生的精神境界,改进考核方式以培养学生的自我教育能力。开展隐性教育要注重发挥教师自身的人格力量,以个性影响个性;虚功实做,在细节上关爱学生;充分利用现代新媒体,以正能量陶铸学生。     

莎士比亚作品中所体现的同性取向倾向探究——以《威尼斯商人》与十四行诗为例

莎士比亚作为文艺复兴时期杰出的戏剧家和诗人,在欧洲文学史上占有重要的地位,由于莎士比亚的文学地位,使得学术界多以一种崇拜的眼光去解读其作品,而其作品中一些细微之处流露的情绪却很少被人们发觉。男同性恋文学的书写在莎士比亚的作品中对这一命题的表现的十分隐晦,通常欲言又止,但我们还是可以在其作品中发现一些蛛丝马迹。本文旨在通过分析其作品《威尼斯商人》与《莎士比亚十四行诗》来对其作品中所体现的同性化创作倾向与其同性取向倾向进行一些探究。     

Using Qualitative Methods with Poor Children in Urban Ethiopia: Opportunities &; Challenges

This paper discusses the advantages and challenges of using qualitative methods to elicit poor children’s perspectives about threats and positive influences on their wellbeing. It draws on research carried out by the author on the subjective experiences of poor children in Addis Ababa, the capital of Ethiopia in terms of their understandings of wellbeing, threats to their wellbeing, coping strategies, and positive or resilient outcomes. After a brief introduction reviewing previous approaches to child poverty in general and research on Ethiopian children in particular, the second section describes the research setting and the ethical approach to the study, which influenced how consent was obtained and the data analysed. The paper then describes the use of qualitative methods such as semi-structured interviews, draw-and-tell, and diaries, the kinds of data they produced and the methodological and ethical dilemmas and tensions encountered in using them. It concludes that despite the challenges qualitative methods are invaluable in order to understand what poor children see as threats and positive influences on their wellbeing.

Life Domain Satisfaction: A Portugal–France Comparison

The study was aimed at replicating on a Portuguese sample the seven-factor model of life appraisal (physical autonomy, love life, family life, social life, occupational life, finances, and leisure life) that was suggested by Salvatore and Munoz Sastre Social Indicators Research 53:229–255 (2001). A sample of 1,111 Portuguese participants, aged 17–85, was presented with the Appraisal of Life Questionnaire. The “domain” model of life appraisal satisfactorily accounted for the data gathered on the Portuguese sample. Regarding finances and occupational life, Portuguese scores were lower than French scores. Regarding the occupational score and the leisure score, a clear linear decrease as a function of age was evidenced in the Portuguese sample. Finally, regarding the family score and the financial score, a non-linear relationship with age was found. An increase was observed from young adult age to adult age, and a decrease was observed from adult age to older age. A strong decrease in the physical autonomy scores among Portuguese females was also observed.     

Exploring Quality of Life During the Transition from School to Work in Chile

Data from Chile’s national household survey (CASEN) for the years 1990–2003 reveal that the transition process from school to active working life has been postponed over the course of the 13 year period while its duration has steadily increased, resulting in a delayed integration into the labour force. This finding is consistent with experiences in other countries as reported by the OECD and the ILO. The present study explores an approach to the development of indicators, currently non-existent, for describing the school-to-work transition in Chile from a quality-of-life perspective following a Swedish paradigm. A typology is proposed based on principal variables (factors) derived from a multiple correspondence exploratory analysis of the 2003 National Youth Survey data, generating a set of transition profiles. The analysis shows that experiencing the school-to-work transition simultaneously with other passages such as the family transition (becoming the head of a household) is decisive in evaluating young people’s quality of life.