Community-based approaches to social exclusion among rural-to-urban migrants in China

Rural-to-urban migrants in China face numerous forms of social exclusion. This article argues that community-based approaches offer innovative ways with which to tackle the problems of social exclusion for rural-to-urban migrants, yet these approaches have been neglected. This article first provides an overview of the concept of social exclusion, as developed by Western European scholarship and policy discourse. Next, it examines the ways in which these concepts are relevant to the context of rural-to-urban migrants within China. Finally, this article conceptualizes the social exclusion paradigm from a community practice perspective and offers the implications of this paradigm for community-level interventions.     

Decomposing the predictive performance of the moving average trading rule of technical analysis: the contribution of linear and non-linear dependencies in stock returns

The main purpose of this work is to decompose the predictive performance of the moving average (MA) trading rule and find out the portion that could be attributed to the possible exploitation of linear and non-linear dependencies in stock returns. Data from the General Index of the Athens Stock Exchange, from the Standard and Poor-500 Index of the New York Stock Exchange and from the Austrian Traded Index of the Vienna Stock Exchange are filtered by linear filters so as the resulting simulated ‘returns’ exhibit no serial correlation. Applying MA trading rules to both the original and the simulated indices and using a new statistical testing procedure that takes into account the sensitivity of the performance of the trading rule as a function of the length of the MA it is found that the predictive performance of the trading rule is clearly weakened when applied to the simulated indices indicating that a substantial part of the rule's predictive performance is due to the exploitation of linear dependencies in stock returns. This weakening is uneven; in general the shorter the MA length the more pronounced the attenuation.     

竞技健美操的新旧规则变化分析

竞技健美操运动技术的发展受运动规则的直接影响，健美操规则的每次修订都会导致运动技术随之发生改进，同样为了适应运动技术的进步，规则也在不断的被修订。完善竞技健美操的规则，确定明确的项目发展方向，可以使运动员和教练员对训练和比赛的安排进行直接的指导，更加高效的催进健美操技术的发展。     

Serials Clutter in Online Catalogs

Abstract

Finding and deciphering serials records in online catalogs is a challenge to many library users. To understand and analyze these challenges, the author conducted searches for scientific journal titles in the online catalogs of Committee on Institutional Cooperation (CIC) libraries. The first part of the study measures the difficulty of retrieving serial records from online catalogs comparing one-word versus multiple-word titles. The second part analyzes displays for complexity by measuring the length of the complete record and the length of the holdings statements. These data show the complexity of displays and indicate the potential confusion that these displays may induce in library users.     

On the improvement of one-sided S control charts

The most common charting procedure used for monitoring the variance of the distribution of a quality characteristic is the S control chart. As a Shewhart-type control chart, it is relatively insensitive in the quick detection of small and moderate shifts in process variance. The performance of the S chart can be improved by supplementing it with runs rules or by varying the sample size and the sampling interval. In this work, we introduce and study one-sided adaptive S control charts, supplemented or not with one powerful runs rule, for detecting increases or decreases in process variation. The properties of the proposed control schemes are obtained by using a Markov chain approach. Furthermore, a practical guidance for the choice of the most suitable control scheme is also provided.     

The Lived Experience of Transport Structure: An Exploration of Transport's Role in People's Lives

This article is oriented towards the tensions between the local character of the lived experience of transport and the more general view taken in transport policy studies. The article presents research conducted in 2002–2005 into the lived experience of transport structure: it represents a social transport policy approach to the phenomenon of suppressed journeys and barriers to travel. The research was funded by the Department for Transport with the primary goal of exploring the complexities associated with travel among different social groups and across different geographic locations. Two case studies were undertaken, one in a rural location and one in a peripheral urban location in Oxfordshire. Analysis of the case‐study materials resulted in a number of findings, the most pertinent of which is that there is a major consultation gap between users of the transport system and planners of that system. Additionally, existing methodologies in transport and travel under‐record and under‐represent the barriers to mobility experienced in the routine of everyday life within contemporary Britain.     

Intensity and persistence of individuals' social exclusion in Australia

We construct a measure of social exclusion that recognises its multidimensionality at the individual level, including its potential variability in intensity at a point in time and in persistence over time. We distinguish seven dimensions or domains of social exclusion: material resources; employment; education and skills; health and disability; social; community; and personal safety. For each of these seven domains, several indicators of social exclusion are produced. Our exclusion measure identifies 20 to 30 per cent of the Australian population aged 15 years and over as experiencing ‘marginal’ or worse levels of exclusion at any given point in time. However, there is considerable variation in both the extent and persistence of exclusion among the excluded. We further find that, although there are commonalities in the demographic composition of the socially excluded and the income poor, there are also some important differences. For example, persons 65 years and over represent a much smaller share of the most ‘excluded’ group than they do of the ‘poorest‘; and – adopting a household‐level measure of exclusion – children represent a larger share of the excluded than they do of the poor.     

如何发现DNA是生命的遗传物质

从核酸的发现到DNA双螺旋结构模型建立历时80余年,人类最终确认了DNA是生命的遗传物质,解决了一个生命科学研究中极其关键的重大问题。因此,对此段历史的研究具有重要意义。全面回顾此间发生的对揭示DNA的结构和功能具有重要影响的事件,包括米歇尔发现核酸、列文提出＂四核苷酸假说＂、格里菲斯等人的转化实验、査伽夫提出碱基配对规律,以及沃森和克里克建立DNA双螺旋结构模型,在此基础上阐述人类发现DNA是遗传物质的研究历程,进而探讨科学研究的规律。     

WTO规则下的我国有色金属行业

文章试图讨论在 WTO 游戏规则中,可为有色金属行业所用的、所必须遵循的、所需回避的规则,以此寻求我国有色金属行业吏大的发展空间。     

唐朝军政统治的终局与五代十国割据的开端

淮南节度使高骈在史书中一直被认为"惑于神仙之说",通过对崔致远<桂苑笔耕集>考察,却发现这是淮南节度使实行的一种改革.它的目的是克服唐王朝军政、财政全面崩溃的困境,使其走向完全独立化."妖人吕用之之党"其实具有下层商人的特性,而且跟扬州周边有盐铁专卖的关系,因此可以说是改革的旗手.促使他们灭亡的原因就是当时各州府互相斗争的状态的持续,这到五代十国时也成了诸势力的政治课题.