Types of participatory research based on locus of decision making

文章以环太湖53条出入湖河流为研究对象,测定2009年12月至2010年3月间（枯水季节）溶解态重金属含量,结果表明Mn、Ni、Cu、Zn、Cr、As等六种重金属溶解态浓度含量均较低,且未超标。将53条河流出入湖区域分为无锡常州区、宜兴区、湖州区、苏州区四个区域,无锡常州区除Cd外,其它重金属含量最高;Cd在宜兴区含量最高,湖州区含量次之,且超标现象严重;苏州区河流由于大部分时间出湖,故各重金属含量最低,水质最好

PP2B and PP1α cooperatively disrupt 7SK snRNP to release P-TEFb for transcription in response to Ca2+ signaling

在真核生物细胞内，编码蛋白质基因的转录由RNA聚合酶Ⅱ（RNAPolⅡ）来完成，其中RNA聚合酶Ⅱ最大的亚基称为Rpb1。Rpb1的羧基端重复结构域（CTD）磷酸化状态是调节RNA聚合酶Ⅱ活性的重要依据[1]。在转录过程中，CTD要经过两步磷酸化才能使转录延伸得以顺利进行。首先，细胞周期蛋白激酶CDK7磷酸化CTD的Ser5位点，然后正性转录延伸因子b（P-TEFb）磷酸化CTD的Ser2位点，此时RNA聚合酶Ⅱ才被真正活化[2-4]。 P-TEFb复合体主要由细胞周期蛋白CyclinT及细胞周期蛋白激酶CDK9组成，它能磷酸化RNA聚合酶Ⅱ从而促进真核细胞的转录延伸。为了适应不同的生长条件...In eukaryotic cells, the transcription of messenger RNA (mRNA) from protein-coding genes is performed by RNA polymerase II .Two major forms of RNA Pol II exist in eukaryotic cells: the hypophosphorylated Pol IIa or the hyperphosphorylated RNA Pol IIo. In Pol IIo, the carboxy-terminal domain (CTD) of the largest subunit (Rpb1) of Pol II is extensively phosphorylated. In eukaryotes, two major cyclin...学位：理学硕士院系专业：生命科学学院生物学系_生物化学与分子生物学学号：2012005130209

拟凸Weil多面体域积分表示的边界性质

本文研究拟凸WEIl多面体域积分表示的边界性质，得到了PlEMElJ公式

Analysis and Forecast of Telecommunications

电信产业是国民经济的基础性产业，对国民经济的发展起着必不可少的支持。随着人们生活和各行业企业对信息的大量、及时的需求，建立信息高速公路与建立传统高速公路一样迫切和重要，发展电信业则成为了各国政府大力推动的项目之一。当前，世界电信运营业已进入到全球竞争时代，电信运营业国际化已成为发展趋势。我国电信业起步比较晚，发展水平不高，且各地区的发展不平衡，因此，研究我国电信业运行的特点和规律，对于采取有效措施进行电信市场宏观监管，促进我国电信市场的均衡和持续发展，具有十分重要的意义。 基于电信市场的研究在我国才刚刚起步，目前的研究多集中于定性的分析。本文则以电信市场可持续发展为中心，电信发展区域均衡、电...The telecommunications industry is the foundation of the national economy and industry. It plays an indispensable supporting role in the development of national economy. With people's and enterprises’ demand of information, development of the telecommunications industry has become one of the countries’ important project. Currently, Telecom Operators all whole the world have entered the era of glob...学位：经济学硕士院系专业：经济学院计划统计系_统计学学号：20041002

The Singular Integral of an Analytic Polyhedron

本文利用r.HArVEy和J.POrkIng的方法首先定义广义式的CAuCHy主值，利用同伦公式，借助积分变换技巧研究WEIl型积分的边界性质，得到PlEMElJ公式.它有别于通常研究边界性质的方法.本文引入细复广义权和CHOQuET型复广义权的概念，讨论了某些与复广义权相关的函数的拟连续性与细拟处处连续的关系.Combining R.Harvey and J.Porking′s methods and traditional methods, we define the current Cauchy principal values in this paper by using homotopy formula and integral transformations.We study the boundary value of Weil type polyhedron integrals and obtain Plemelj formulas, which are different from the methods usually in the studies of boundary value problems

团购模式的博弈分析

网络应用的普及与发展,使人们对信息的掌握与交流更及时充分,这不仅影响着人们的日常生活质量,而且也在很大程度上改变着消费习惯。本文主要从零售领域来论述一种由于网络的发展而产生的新的消费方式———团购,它不仅对传统的零售概念发出了挑战,也对现代消费理念提出了思考。它的出现为目前的零售业注入新的活力,并在促进交易、繁荣市场等方面发挥着很大的作用

Induction of settlement and metamorphosis of Saccostrea cucullata larvae

【中文摘要】 采用外加人工化学物质检验对僧帽牡蛎眼点幼体的附着和变态诱导活性 ,结果表明 :去甲肾上腺素、肾上腺素和L 多巴可有效诱导幼体不固着变态。在药物持续作用下 ,肾上腺素的最佳诱导浓度为 1 0 -5mol·L-1(变态率 6 7.4% ) ,去甲肾上腺素的最佳诱导浓度为 5× 1 0 -5mol·L-1(变态率 5 2 .2 % ) ,L -多巴的最佳诱导浓度为 1 0 -5mol·L-1(变态率 43.0 % ) ,而对照组变态率为 0。幼体大多在药物作用 1 2～ 2 4h之间完成变态。三种药物诱导的变态个体中有 85 %以上是不固着变态。比较多种附着基和EPI的变态诱导活性 ,显示同种贝壳的活性较肾上腺素还高。去甲肾上腺素诱导幼体变态效应对低盐海水有较强耐受能力 ,而对高盐海水适应性差 【英文摘要】 Induction of adding chemical compounds on the settlement metamorphosis of Saccostreea cucullata larvae was assayed. The metamorphosis of larval Saccostreea cucullata can be induced by epinephrine (EPI), Norepinephrine (NE), and L-DOPA. During a 48h exposure, optimum concentrations of three compounds were 10 -5 mol·L -1 , 5×10 -5 mol·L -1 and 10 -5 mol·L -1 corresponding to maximum metamorphosis rates of 67.4%, 52.2% and 43.0% respectively. Most metamorphosis occurred in the period ...国家自然科学基金资助项目( 39400021

Time Series Modeling and Forecasting Concerning the Fluctuation of the Foreign Reserve in China

本文通过对我国最近十三年来的外汇储备月度数据进行分析,利用不同的建模思想建立了三次趋势模型、Holter-Winter非季节模型和AR IMA模型来分析短期内我国外汇储备的变动趋势。这三种模型对原始数据都能够较好的拟合,而且用于预测时的结果也相差不大,可以为短期内预测管理我国外汇储备提供有效参考。In this article,I analyze the short run variation of the foreign reserve,via three different models,by using the monthly data of our nation since 13 years ago.These models can fit the original data well,and the forecasted results of them are fine too.Thus we can give some useful advice on the management of foreign reserve based on these models

A new species of Encotyllabe from marine fishes in Minnan-Taiwan Bank,Fujian,China

报道了闽南-台湾浅滩野生鱼类真鲷(Pagrosomusmajor)鳃丝上寄生的分室科中柄虫属一新种——厦门中柄虫Encotyllabexiamenensissp.nov.,虫体在体型、体长宽比、大钩和小钩长度比值、小钩的形状、卵黄腺的分布以及卵巢的位置等特征与现有种类存在一定差异,且在卵巢左侧具有发达的肌肉束.A new species of Encotyllabe was reported. The type specimens are deposited in Parasitology Research Laboratory, Xiamen University. Encotyllabe xiamenensis sp. nov. (Plate I). Host: Pagrosomus major. Location: Gill. Locality: Minnan-Taiwan Bank, China. 23.5~24.3 °N, 117.5~118 °E.Body elongate 4.55~5.53 long including opisthaptor, 1.13~1.43 wide. Prohaptor in form of 2 large, frilled lobes, each bearing muscular sucker, 0.17~0.29 in diameter. Eye-spots, 2 pairs. Opisthaptor bell-shaped, aseptate, with plicated marginal membrane, armed with pair of large broad hamuli, pair of minute hamuli and 14 marginal hooklets. Opisthaptor 0.59~0.96 in diameter; large and small hamuli 350~410 μm and 27.5~35 μm long, respectively. Marginal hooklets 10~13.75 μm long. Testes 2, elongate-oval, 0.39~0.45×0.27~0.35. Vas deferens convoluted, winding anteriorly on the left side of body, dorsal to vitelline reservoir, entering base of penis bulb and enlarging inside to form internal seminal vesicle. Large prostatic reservoir outside penis; prostatic duct joins ejaculatory duct proximal to tip of penis bulb. One very stout band of muscle extend anteriorly on left side from level of ovary, joining to the base of penis bulb. Ovary pre-testicular 0.23~0.38 in diameter, with an intra-ovarian seminal vesicle. Uterus extends antero-laterally along dorso-lateral side of penis. Vaginal pore on ventral side at level of vitelline reservoir. Vitellarium extensive, in lateral and median fields, from level of pharynx to near base of peduncle. No eggs were observed.浙江大学医学院中青年科研启动基金