系统发生

Information technology is believed to produce considerable influence on all of the five basic elements of an enterprise' s internal control system:(1 )"Horizontalization" of the enterprise' s organizational structure is possible, the control group becomes the best form of the enterprise' s autonomous control and the enterprise's control limit is expanded;(2) The range of risk control is enlarged, which increases the risk of the enterprise staff's involvement in decision-making and meanwhile provides an instrument for risk control;(3) The difficulty and complexity of internal control increases;(4) The enterprise information system gets vulnerable to illegal intervention;(5)The enterprise' s internal control takes the form of man-machine model.

企业内部控制是企业为保护其资产安全，保证信息的完整和正确，促进经营管理政策得以有效实施，提高经营效率，控制经营风险，防止舞弊行为发生，并进而实现企业目标的一项重要的管理制度与方法，它由控制环境、风险评价、控制活动、信息与沟通、监控等相互关联的五个基本要素构成。在信息技术环境下，企业内部控制系统的五个要素构成的框架体系并未发生实质性的改变，但企业信息环境的急剧变化，给企业内部控制带来了新的问题与挑战，影响并改变着企业内部控制要素的具体内容与表现特征。

The incidence of cancer data is according to the cancer record system of Department of Health in Taiwan. The data from 1997 to 1999 is in Chiaoshi, Chuangwei, Tungshan and Wuchien of Ilan County, and from 1992 to 1999 is in Putai, Ichu, Peimen, Yenshi, Hsuechia and Hsiaying of Chiayi and Tainan County.

居民的癌症发生资料系取自卫生署的中华民国癌症登记系统，包括1997~ 1999年宜兰县礁溪乡、壮围乡、五结乡、冬山乡及1992~1999年台南县北门乡、学甲镇、盐水镇、下营乡以及嘉义县布袋镇、义竹乡等十个乡镇共111个村里的各类癌症发生个案。

The results of DPBMN in n-hexane solution show that there are two non-radiative processes occurring in the local excited state. The decay time constants of ~4 ps and ~ 220 ps are due to vibration relaxation and intersystem crossing processes respectively.

实验结果显示DPBMN分子在非极性溶剂中的区域性激发态(local excited state，LE state)有两个非辐射缓解的过程发生，首先为发生在LE能阶的振动缓解(~ 4 ps)，之后为系统内转换的过程(~ 220 ps)。

The key thing that we see is needed alongside this tracking system is to have pilots onboard every large ship that traverses the Great Barrier Reef World Heritage area," the BBC quoted Richard Leck of WWF Australia as saying. Such professional navigators, he said, can prevent accidents."Most of the incidents that occur within the World Heritage area are due to human error.

BBC援引世界自然基金会澳大利亚分部的理查德●雷克的话称：&我们认为除了卫星跟踪系统之外，另一个重要措施就是每一艘横渡大堡礁世界遗产区域的船上都要有专业领航员，&他还表示，这些专业导航者能避免事故发生：&绝大多数在世界遗产区发生的事故都是由人为错误造成的。&

Systematic investigations were performed of impact factors influencing the plant regeneration of Medicago sativa, in order to establish a regeneration system with high efficiency for genetic improvement.

通过系统地对紫花苜蓿体细胞胚发生以及次生胚发生途径中若干影响因子的比较研究，建立了紫花苜蓿高频体细胞胚和次生胚再生体系。

Despite of its important role during embryogenesis and reproductive development,more and more studies implied a critical role for Rhox5 on the determination and differentiation during myogenesis.

除在生殖系统的发育、精子的形成和成熟过程中发挥重要的作用外，多项研究表明其在肌细胞的发生和分化中担任重要角色，有可能作为MyoD基因的上游调控子或者和其他转录因子协同作用，调控肌细胞的早期发生和分化事件。

The students are required to study and understand the main physiological features of fetuses and the ontogenesis of the most important regulating axises during the fetal development .

中文简介：通过本课程的学习使学生在学习动物胚胎学以及相关课程的基础上，进一步认识动物主要器官或系统的发生发育过程，相关的调控机理；以及动物主要调节轴系的发生和建立。

Cardiac hypertrophy and extracellular matrix remodeling happened as a result of chronic overrange of pressure in heart and hypervolaemia which lead to damage of relaxation and compliance of heart.Drugs including renin-angiotensin converting enzyme inhibitor,angiotensin receptor blocker,aderergic receptor blocker,aldrosteron antagonism,tatins endothelin receptor blocker pancreatic kiniogenase and calcalium channel blocker,can delay or reverse the remodeling by several mechanisms.

主要表现为心脏在慢性超负荷的压力、容量作用下发生的病理改变致使左室肥厚组织胶原结构发生改变，导致心肌顺应性降低，舒张功能受到损害；作用于肾素-血管紧张素系统的药物及肾上腺素受体阻滞剂、醛固酮拮抗剂、他汀类药物、内皮素受体拮抗剂、胰激肽原酶、钙通道阻滞剂等药物通过不同途径和机制延缓和逆转左心室重构。

Based on a systematic field investigation and laboratory experiments, the structures of arthropod communities and the evalution of dominant predatory enemies in cabbage fields of different seasons were studied. The main results were as follows:1 The structures and their dynamics of arthropod communities in cabbage fields1.1 Species composition and population dynamics of each species of the arthropodcommunities in the cabbage fieldsThe research results showed that the occurrence of Pieris rapae in spring cabbage fields was relatively grave.

本文在田间系统调查和室内试验的基础上，对不同季节甘蓝田节肢动物群落结构及捕食性天敌优势种的评价进行了研究，主要结果如下：1甘蓝田节肢动物群落结构及其动态1.1节肢动物群落物种构成和各种群数量动态研究结果表明，春甘蓝田菜青虫的发生比较严重，菜青虫在调查期间种群数量呈上升趋势，5月初高峰期平均每株甘蓝接近20头；菜蚜与小菜蛾的发生相对较轻，菜蚜在5月中旬有个明显高峰。

Patients with clinical virologic breakthrough during NA therapy and 4 negative control patients without virologic breakthrough were selected for the study of quasispecies dynamics. All the 70 serum samples from these 10 patients were analyzed with the method of'PCR-cloning-sequencing'. Totally over 2,100 clones were sequenced. The target sequences obtained were aligned, compared and analyzed to study the mechanism of NA drug resistance and to understand the clinical course of NA therapy from a viral populational genetic point of view.

我们进一步采用国际认可的&金标准&&PCR-克隆-测序-序列分析&的方法，对6例发生临床病毒学突破的患者以及4例未发生临床病毒学突破的患者的全程血清样本进行了准种检测，共测序2100余个，以系统深入地对LAM和ETV治疗过程中HBV种群的演变及其临床意义进行探讨。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐