我国监理管理体制与国外差异的分析及改革的建议

我国加入世界贸易组织(WTO)后,我国监理咨询业目前还未受到较大影响和冲击.然而随着时间的推移,国内市场与国际市场的逐步接轨,建设监理和工程咨询按国际惯例运作,将对建设监理和工程咨询管理的体制、制度及具体的内涵产生冲击,工程监理咨询单位以及监理咨询从业人员也会受到市场竞争的挑战.工程监理咨询行业管理部门如何调整行业管理体制和政策,监理单位和监理工程师如何适应工程监理咨询市场新的要求,是我国行业管理部门、监理单位和监理工程师解决和研究的问题.本文拟通过我国工程监理咨询业的实际状况和国际建筑服务业的对比分析,找出差距,并提出问题和如何解决的建议.供行业有关人员参考和研究. 　　……     

学分制下如何做好学生的思想政治工作

高校实行学分制后,在教学方式、管理方式等各方面发生了较大的变化,与此相适应,思想政治工作也要有相应的变化.在高校深化教学改革的新形势和新情况下,探讨学分制下如何做好学生的思想政治工作,就成为我们必须认真研究和解决的一个重要课题.     

SPECIAL TOPICS:Chaotic laser brings out higher precision OTDR

Professor Wang YunCai and his student Wang AnBang reported a new concept of optical time domain reflectometry (OTDR) based on a chaotic light correlation method.This will be useful for precise fault location in fiber links with high-density events.Their work is reported in Issue 53 (February, 2010) of SCIENCE CHINA Information Sciences.     

迅降难沽?从而提高氧气回收率,

duct recovery and 99.06% product purity after simulating the PSA oxygen-making flow using electrical network model and optimizing operation parameters,using carbon molecular sieve to absorb most of the Ar and N_2 from air,then desorbing around 70% oxygen as the feed-in gas of 5A zeolite unit and taking out remained N_2 from i     

一类两机器 no-wait 流水作业总完工时间问题

在两机器 no-wait 流水作业问题中,每个工件在加工前有一调整时间,加工完之后有一移走时间,同一工件的调整和移走是可以重叠的,但加工时间不能重叠,同时任一工件在第二台机器上的加工必须紧接在它在第一台机器上的加工之后进行,本文以总完工时间为目标函数,讨论问题最优解中工件排列应满足的条件;其次讨论当工件的三种时间满足一定条件时最优时间表的求法;最后为问题设计了一个近似算法.     

Dihydropyridine BAY-K-8644 activates chromaffin cell calcium channels

Douglas and Rubin suggested that "the role of acetylcholine as a transmitter at the adrenal medulla is to cause some brief change in medullary cells which allows Ca ions to penetrate them and trigger the catecholamine ejection process". The Ca2+-channel blocking agents, verapamil, nifedipine and nitrendipine, have been used widely to investigate the properties of slow Ca2+ channels in a variety of tissues, including the adrenomedullary chromaffin cell. Recently, small modifications to the nifedipine molecule produced a derivative, BAY-K-8644 (methyl-1,4-dihydro-2, 6-dimethyl-3-nitro-4-(2-trifluoromethylphenyl)-pyridine-5-carboxylate), that in contrast to the Ca2+-channel blocking agents, stimulated cardiac and vascular smooth muscle contractility. We have tested whether this compound behaves as a Ca2+-channel activator at the chromaffin cell membrane as shown by Schramm et al. in smooth muscle cells. The experiments described here strongly suggest that it does so.     

《驯悍记》的悲喜剧意蕴

对莎士比亚的早期戏剧《驯悍记》从两个不同的角度进行解读：从人文主义视阈看，这是一出反映新兴资产阶级的新的生活原则获胜的喜剧；从女性主义视阈看，这是一出表现女性主体性丧失的悲剧。     

高校知识女性持续发展的障碍及其对策探析

经济时代给广大高校知识女性带来了发展契机,观念的更新、广阔社会空间的提供为妇女全面提高素质创造了条件,同时它也向知识女性提出了严峻挑战:传统的束缚、自身生理和心理的制约等限制了女性的全面发展.文章分析了知识女性可持续发展的障碍,并就帮助、鼓励和支持女性得到可持续发展提出了若干对策.     

Hypoosmotic shock induces a stateⅠtransition of photosynthetic apparatus in Dunaliella salina

State transition has been considered as a short-term chromatic adaptation of photosynthetic apparatus in plants[1,2]. When photosystemⅡ(PSⅡ) is excited more than photosystem Ⅰ(PSⅠ) upon illumination, the inter-system electron carriers, such as plastoquinone (PQ) and cytochrome b6f complexes (Cyt b6f), are reduced, and a thylakoid membrane-bound protein kinase for light har-vesting chlorophyll-binding protein (LHCP) is activated, resulting in LHCP phosphorylation[3]. Upon phosphoryla-…