“80后”农民工择偶模式研究

本文通过对528份有效调查问卷的统计分析得知:80后农民工由于特殊的成长环境和成长经历,他们在择偶上出现了年龄偏早化、择偶观念逆传统化、婚期选择集中化等趋势。针对这种变化,笔者认为构建科学合理的择偶模式势在必行,政府、家庭、社会和个人应各尽其责,协调合作,帮助他们树立正确的人生观、价值观和择偶观,更好地促进社会主义新农村的建设。     

A new quantitative method for assessing sleepiness: The alpha attenuation test

Abstract

Sleepiness interferes with the ability of night-workers and shiftworkers to safely and effectively perform their jobs, and has been increasingly recognized as a major cause of industrial and transportation accidents. Current methods for the assessment of physiological sleepiness levels, such as the Multiple Sleep Latency Test (MSLT) have several limitations and are particularly impractical in field or occupational studies. In this study, the effectiveness of the Alpha Attenuation Test (AAT) for the quantification of sleepiness has been evaluated and compared to the MSLT during a 40-h sleep deprivation protocol. The AAT, a 12-min eye closed/open protocol, is a quantitative method based on the fact that EEG alpha (8-12 Hz) activity tends to increase with eyes open as individuals get sleepier, while it decreases with eyes closed. In this validation study, the AAT proved to be a sensitive measure of sleepiness induced by sleep deprivation, and it also correlated well with the MSLT. Relative to the MSLT, the AAT has the advantages of being objective, minimally intrusive, and more practical especially in industrial or field studies.     

Taking into account the rescheduling problem during the scheduling phase

The scheduling problem in production management has been studied for a considerable time, and several types of software are used. A problem arises in updating the production planning, or ‘rescheduling’, when an unexpected event occurs in the shop control. Solving this problem is difficult because the implications of such events are usually impossible to forecast. To prevent this problem, we propose to manipulate a set of equivalent schedules during the short time schedule. Then, if an unexpected event prevents realization of a given schedule, it will be possible to find an equivalent one, without full rescheduling. The primary requirement is to find a formal representation of a set of schedules. This has already been explored using CPM graphs with nodes associated to a set of tasks. We propose in this paper to use an extension of such graphs, PQR trees, that represent both precedence and group constraints. We first reiterate the notion of PQR trees. We present methods to take into account date constraints in such a structure, and we give a model for the general job-shop problem.     

从社区居民读书状况看社区图书馆的建设模式

南昌居民读书特点为：家庭藏书不能满足居民的读书需求；读书的主观能动性不足，属于“要用才读书”；在读书方面投入的时间和资金不大。因此，社区图书馆在社区将有着极大的功能发挥空间。社区图书馆的建设必须与时俱进，采用依靠政府支持、创办图书银行、挖掘物业潜力、共享学校与公共图书馆的资源等多元化模式进行建设。     

走向后经典形态的文学批评

文学批评有着悠久的学术传统,同时它又在文学研究中最直面鲜活的文学现实,这样,传统的稳定性和现实的变动不居就形成了矛盾.文学批评在这种变化面前,就只有在坚守自己审视文学状况这样的基点上.调整自身认识文学的规程.在这一调整中,以经典作品作为价值引导的批评模式受到了冲击,于是一种"后经典"形态的文学批评模式应运而生.在"后经典"形态的批评中,批评的追求目标、关注对象、话语方式、叙事体系等都有所变化.     

基于时间学的思想政治教育时间规律新探

随着即时网络时代的到来,思想政治教育学要实现现代转型,探究者必须紧跟时代行进的步履,发扬探赜索隐、钩深致远的精神,深入揭示和科学应用思想政治教育新规律尤其是时间规律。基于时间学,从社会背景条件、教育对象、教育者、管理者角度去考察,思想政治教育时间规律群大致包括思想政治教育一定要适合时代发展状况规律、思想政治品德形成发展的时间规律、对人们进行思想政治教育的时间规律和思想政治教育时间管理规律等四大类型的一级时间规律。其中,每一类型的一级规律包含诸多二级规律或曰子规律。自觉把握和科学应用这些规律,有助于推动思想政治教育不断从实然状态向应然状态、从必然王国向自由王国飞跃。     

中国国民财富总量、结构及其演进模式研究——基于“自上而下-自下而上”测度范式

“财富-福利等式”表明国民财富与社会福利具有理论等价关系,是评估发展可持续性的最优指示器。我国国民财富研究相对滞后,总量测度与结构分析都亟待深化。本文基于“自上而下-自下而上”范式,依据国情优化关键参数的设定,改进了我国国民财富与分类资本估算,并剖析了省际国民财富结构以识别其演进模式。研究发现:由于资源禀赋与发展阶段有别,省际国民财富结构差异显著;随着经济发展水平提升,国民财富结构先由自然资本主导转向物质资本与人力资本共同主导,进而转变为人力资本主导,最终迈入社会资本主导。各地区应结合自身禀赋与发展阶段做好“投资组合管理”,以此来提升国民财富并优化其结构从而改善经济发展的持续性。     

An integrated model based on statistical process control and maintenance for two-stage dependent processes

The close relationship between quality and maintenance of manufacturing systems has contributed to the development of integrated models which use the concept of statistical process control (SPC) and maintenance. This article demonstrates the integration of the Shewhart individual-residual (Z_X ? Z_e) joint control chart and maintenance for two-stage dependent processes by jointly optimizing their policies to minimize the expected total costs associated with quality, maintenance and inspection. To evaluate the effectiveness of the proposed model, two stand-alone models—a maintenance model and an SPC model—are proposed. Then a numerical example is given to illustrate the application of the proposed integrated model. The results show that the integrated model outperforms the two stand-alone models with regard to the expected cost per unit time. Finally, a sensitivity analysis is conducted to develop insights into time parameters and cost parameters that influence the integration efforts.     

建立面向中国-东盟会展产业的研究生培养模式

会展产业作为“朝阳产业”,近年来在中国发展迅猛,刺激了会展人才需求,每年需新增从业人员20多万。但现有会展人才缺乏,高级会展人才尤缺,不能满足发展需求。广西借助每年举办中国—东盟博览会、中国—东盟商务与投资峰会和南宁国际民歌艺术节,大力发展”中国—东盟”会展产业,急需一批高素质、具有东盟文化特色的高级会展人才。针对于此,应加强会展产业的研究生培养,通过高校联合办学、加强学科建设,与会展管理部门、行业协会、企业等机构的合作等途径来共同培养。