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The aim of this study was to ealuate ethnic ariations in the prealence of proximal neoplasia on follow-up colonoscopy after a neoplastic lesion is found on sigmoidoscopy.

本研究旨在评价乙状结肠镜发现肿瘤损害后接下来进行结肠镜检查发现近端肿瘤患病率的种族间的差异。

Part Three The study of Lattice-valued Modal First-order Logic System and Its Resolution Principle In this part, we introduced quantifiers and predicate into LMP, put up lattice-valued modal first-order logic system LMF, and gave its semantic interpretation and syntax structure, proved soundness theorem and consistence theorem. Moreover, in order to judge the satisfiability of formula, defined Skolem standard type and H-interpretation. Based on these work, made a primary discussion of a - resolution principle based on LMF.

第三部分：关于格值模态一阶逻辑系统及其归结原理的研究第n页西南交通大学博士研究生学位论文这一部分主要是在格值模态命题逻辑系统LMP队）中引进量词和谓词，建立格值模态一阶逻辑系统LMF（广并给出其语又解释和语法结构，证明了系统的可靠性和协调性；另外，为了判断公式的可满足性，定义了格值模态一阶公式的 Skolem标准型和体解释；在此基础上，对基于系统LMF的a一归结原理进行了初步探讨。

The study of picture books mostly focus on illustration or teaching areas, but the areas on relationship between creativity of pre-school and pop-up books are lacked.

目前有关图画书的研究，大多仍著重在插画或教学应用方面，而有关立体书设计，特别是针对其与幼童创造力关系之探讨却较为缺乏。

From the lifespan of relay point of view, a reliability criterion was provided based on dynamic characteristics of anti-forces. Mathematical model of tolerance design with reliability was set up under usage of "stress-strength interference method", taken some critical dynamic characteristics as identification objects such beginning of contact separation speed, speed of collision and gag bit impact velocity. This model showed that lower values of characteristic parameters center and quantitative descriptively relationship between tolerance and product reliability. Multi-objective optimization model of relay tolerance distribution was completed when some factors such as reliability, processing costs and its feasibility into consideration. Based on Analytic Hierarchy Process to determine weight coefficients of various objectives, and usage of simulated annealing, this study performed optimal reliable tolerance allocation of space electromagnetic relay, and then key technology segments were analyzed, accompanying its course measured by controlling chart.

从继电器电寿命的角度，基于动态吸反力特性的配合提出了继电器的可靠性判别准则；在此基础上以触点分离初速度、触点碰撞速度以及衔铁碰撞速度等关键动态特性为判别对象，采用"应力-强度干涉法"建立了继电器可靠性容差设计数学模型，给出了下位特性参数中心值及其容差与产品可靠度之间的定量描述关系；综合考虑可靠度、加工成本及加工可行性等因素建立了继电器容差分配的多目标优化模型，基于层次分析法确定了各目标的权重系数，并采用模拟退火法实现了航天电磁继电器的可靠性容差最优分配；研究了继电器的关键工艺环节，并通过控制图对其过程能力进行了分析。

There are three features in the minibasins induced by gravitational sliding on the slope: the firstly, feature is surface of unconformity developed by onlap on minibasin margins or surface of unconformity truncated by mass transport-complex are sequence boundary in the study area; the secondly , accommodation of gravity flow is controlled by up lift rate and sedimentation rate , and styles of filling in the minibasins are dominated by the interrelationship between the two factors; and the third , there are two stacking patterns that consists of upward of turbidite fan-hemipelagic drape mud or mass-transport complexes-turbidite fan-hemipelagic drape mud.

认为在深水陆坡重力滑动作用所形成的微盆地内，层序边界表现为微盆地边缘上超不整合面或重力流对下伏地层的侵蚀不整合；逆冲构造隆升速率与沉积速率共同控制了重力流可容空间和沉积充填样式；沉积垂向演化以块状搬运复合体一浊积扇－深海披覆泥或浊积扇－深海披覆泥为特征。

A crossover study design was used: the bion was on for the first 3 months, off for the fourth month, and on again during long-term follow-up.

采用横断面研究：生物体装置在前3个月开启，第4个月关闭，在长期随访中再次开启。

To study and evaluate the impact of different frequency's floods on social and economic development of the area of Lower weihe River in shaanxi province up the San-men-xia reservoir Employ the method of items of direct loss,namely,to exact all kinds of loss percents of everythings on the earth submersed by the flood by empirics and practical datas ,and ultimately evaluate the flooded loss of some flood standard.

研究评价三门峡水库不同频率洪水对陕西渭河库区社会经济发展的影响。采用直接损失项目法，即根据经验和实际数据确定洪水淹没的各种地表载物的损失率，估算某种洪水标准时的洪灾损失。

According to the results of this study, the owner should take action on the drawbacks of building industry system. For example, firstly, the purchase system should be reformed to avoid the malignment competition; secondly, the content of project contract must be reviewed to set up the fair and reasonable contract by the responsible attitude and the additional agreements; thirdly, the professional ability on the area of purchase of clerk should be improved. The design supervise should have professional ability to supply technical service and should be responsible for the loss which caused by the improper design.

根据研究结果得到了三个结论，第一：业主应审慎思考工程采购制度中最低价决标的存废，推动最有利标决标，以杜绝抢标、恶性竞争发生；第二：订定公平合理之工程契约，增列仲裁条款之规定，提升承办人员采购专业能力等；第三：设计监造单位对於提供技术服务工作应有相当程度的专业能力。

The resulting strain, designated YES2MTM1, was transformed with a yeast genomic library. Transformants lost the plasmid overexpressing MTM1 after 5-FOA treatment. Yeast strains able to grow on nonfermentable carbon source with MTM1 deletion and overexpression of some DNA fragments were picked up and candidate suppressor genes were identified. Overexpression of five genes were identified to be able to rescue the growth defect on nonfermentable carbon source. The study will provide reference for MTM1 gene function and screening for suppressor of genes whose deletion result in irreversible damage.

为了避免MTM1缺失造成的不可逆损伤，在野生型酵母中先转入带有MTM1 基因的质粒，再敲除染色体上的MTM1 基因，随后转入基因组文库，再利用药物5-氟乳清酸(5-FOA)迫使细胞丢失表达MTM1基因的外源质粒，再筛选能在非发酵培养基上生长的转化子，通过这种方法筛选发现，POR2等5个基因的过表达可以挽救MTM1 基因缺失造成的非发酵培养基上的生长缺陷，为深入了解MTM1基因的功能提供了线索，对筛选其他造成不可逆损伤的突变基因的抑制基因提供了一条可行的研究思路。

Experimental study of co-culture showed that there was a good biological compatibility between fibreframe of PGA and SCS.Compared with SCs on the plane,SCs migrated easily on the stereoframe.The long olivary cell of SC was still trending to wrapping fibre up without neurons.

PGA在SCS生长中具有良好的生物相容性；与平面相比SCS更易在立体网架的纤维上迁移，长橄榄形的SCS有包裹纤维的趋势。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。