我国农民工利益问题研究综述

我国农民工利益问题研究主要成果集中在关于农民工利益维护的主体、农民工利益内容及其受损现状、农民工利益受损原因、农民工的利益维护和保障.农民工利益问题研究存在的局限性表现在缺乏农民工主体性研究和利益表达角度的相关研究.     

农民非制度化利益表达成因探析

当前我国农民利益表达具有明显的被迫维权性质,表达行动一开始就有走向非制度化的潜在危险,农民相对剥夺感的增强和表达行动的个体化更加剧了这种张力;制度化表达的无效性是农民走向非制度化利益表达的直接动因;非制度化表达的"相对有效性"是农民非制度化利益表达行动的信念基础,正是以上原因导致了大量农民非制度化利益表达事件.     

新生代农民工群体利益表达困境分析

随着计划经济体制向市场经济体制的转变,原有的社会分配制度和利益格局被打破,社会利益主体呈现多元化和分级化的趋势,随之而来的是贫富差距的扩大和弱势群体利益边缘化。当前新生代农民工已经成为外出农民工的主体,他们在经济、政治、文化等方面具有比老一代农民工更为强烈的利益诉求,其利益表达问题因而成为学界及社会大众关注的焦点。从政治、经济、文化等不同角度探究新生代农民工的主要利益诉求,发现这一群体在利益表达方面存在着无力表达、无处表达、表达成本高昂和表达低效等方面的现实困境。     

农民工意见表达实践与探索

农民工意见表达对其自身情绪释放、个体发展以及政治沟通、政府过程参考有重要意义和作用。但由于种种限制,阻碍了农民工合理、有序利益的诉求,限制农民工意见表达水平。因此,有必要从改革户籍、选举制度,健全、完善农民工工会组织,全面提高农民工文化、政治素质等方面努力,并从农民工网络意见表达角度进行创新尝试,以便农民工更快更好地融入城市的政治生活,促进中国城市化的顺利发展。     

非制度化利益表达产生的原因及其治理路径

理论界多认为民众失衡的社会心理是非制度化利益表达产生的原因,忽略了单位制解体后的组织缺位或越位是导致民众非制度化利益表达方式产生的重要因素。这是因为:一方面,单位组织解体后利益表达主体没有可以依赖的政治或社会组织,缺乏社会资本支撑;另一方面,利益分化导致的利益结构失衡使利益表达主体产生了消极政治心理,影响着其政治行为。因此,非制度化利益表达的治理路径是:强化已有利益表达渠道的效能,使民众拥有组织归属感;拓宽利益表达渠道,化解民众消极政治心理。     

保障农民工合法权益是构建和谐社会的基石

当前,农民工权益保障的程度,已成为构建和谐社会的重要标志之一,是我们必须要解决的严峻课题;其次,经济结构及社会保障制度,农民工组织化程度低,缺乏必要的利益表达机制,法律政策没有得到有效落实等是农民工权益受损的根源。要解决这一难题,必须高度重视农民工权益问题,采取综合措施,推进社会管理制度改革,强化农民工培训,完善利益表达机制,加大执法力度等,切实维护农民工权益,真正实现构建和谐社会的目标。     

我国农民工自组织产生的深层根源

为保护处于弱势群体的农民工之合法权益,除了政府采取相关措施之外,农民工自身走一条团结互助共赢的组织化之路是一个必然选择,目前农民工自组织作为一种利益表达机制已逐渐斩露头角。我国现有农民工利益表达机制的缺陷是农民工自组织产生的制度根源,而农民工权利意识、利益诉求意识到组织诉求意识的觉醒是其产生的思想根源。     

试论青年农民工基本权益的保障机制

针对青年农民工劳动时间过长、工资被恶意拖欠与克扣等法律问题,党和政府部门高度重视青年农民工基本权益保障,但缺乏有效机制。为了依法维护和切实保障青年农民工的合法权益和基本权益,需要构建政府部门、工会组织、非营利组织、城镇社区、新闻媒体和青年农民工等诸多主体共同参与的青年农民工基本权益保障机制,以对青年农民工基本权益保障和城乡社会主义现代化建设事业有所裨益。     

新生代农民工政治参与的路径选择

高涨的权利意识,是新生代农民工作为"新人"的鲜明特征,他们不仅要维护自己的合法权益,还要主动参与政治表达和社会管理。然而,由于受制度体制、政治文化和自身素质等方面的影响,新生代农民工在具体政治参与过程中处于边缘状态。探寻新生代农民工政治参与由非制度化走向制度化的路径,将有利于促进我国社会主义民主政治建设和构建社会主义和谐社会。     

当前农村群体性事件的原因及对策

农村群体性事件已成为阻碍我国农村和谐社会构建的一个重要问题.有效应对农村群体性事件必须发展农村经济,推进基层民主政治建设,形成多元利益表达和参与渠道机制,减少不同利益群体之间的摩擦和冲突,将农民的非制度化参与纳入制度化体系.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

英文诗歌中的喻类修辞

为了有助于提高英文爱好者的个人情操、文化素养和学习兴趣,以及专业人员对英语学习和研究进行多途径的探索,本文通过一些精选诗歌的引证和分析,着重论述了喻类修辞法在英文诗歌中的运用其及效果。     

Man Is Unable to Change the Miserable Life——Analysis of the Arrangement of Four Characters in The Glass Menagerie

Tennessee Williams is considered as one of the most important American playwrights since World War II.The Glass Menagerie is his first successful drama,which describes a tragic situation of family and means to say that Man is unable to change the miserable life,no matter whatever means he try,This essay focuses on the analysis of the arrangement of the four main characters:Laura.Amanda,Jim and Tom to reveal the theme.Laura is fragile.Amanda is brave.Jim is vital.Tom is sensible.And all of them develop and try the different means to struggle against life,but fail tragically.With the evidence,the paper comes to conclusion naturally that Man is unable to change the miserable life,and he dooms to fail.     

Characterization of root-nodulating bacteria on Retama raetam in arid Tunisian soils

The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.     

An Affordable Accurate Evaluation of the Binding Conformations Predicted by Molecular Docking Studies in Bio-System

正Recently,docking has been widely used to predict the binding-modes of protein-inhibitors,when the crystal complexes structure was absent.Most docking algorithms are able to generate a large number of probable conformations,it,however,is difficult to effectively evaluate these docking poses and identify the most reasonable bindingmode.In the present study,on the basis of the crystallographic data of human 3-hydroxy-3-methylglutaryl coenzyme     

WIMAX与WI-FI技术分析及联合组网

介绍了WiMAX与Wi-Fi两种无线宽带接入技术,并对两者之间的关系及相互之间的影响做了对比及分析,并对WiMAX的关键技术进行了详细说明,最后对两者的联合组网方式做了简单的探讨。