系统发育

Background:Developmental dysplasia of hip is a frequent disease of skeletal muscular system in infant.There is about 1% to 10% infants to be prone to developmental dysplasia,dislocation,and semiluxation of hip in the borning.

研究背景及目的：发育性髋关节异常(developmental dysplasia ofhip，DDH)是婴幼儿骨骼系统最常见的疾病之一，约1％～10％的新生儿出生时有髋关节发育不良、脱位及半脱位倾向。

After studying the sequence stratigraphy and the provenance system, they definite the sedimentary type, sequence position, depositional area and formation mechanism of the gravity flows and set up the depositional models of the delta slump turbidite fan, slop-moving turbidity fan, nearshore subaqueous fans, sublacustrine fan and slope fan.

通过层序地层研究及物源供给系统分析，明确了重力流的沉积类型、层序位置、发育部位和形成机制，建立了三角洲滑塌浊积扇、坡移浊积扇、近岸水下扇、湖底扇和斜坡扇共五种类型的重力流发育模式。

This theory was often expressed as "ontogeny recapitulates phylogeny", i.e. the development of an organism exactly mirrors the evolutionary development of the species.

这一理论往往表示为&个体发育重演种族系统史&，即一个有机体的发育正好反映了这个物种的进化发展。

Effect of potassium nutrition on Elongation and development of cotton fibre in Bolls at Different Positions and its physiological basis was studied.

本试验于2004～2005年在山东农业大学科技示范园进行，选用生长发育特性和品质性状有一定差异的2个棉花品种：鲁棉研18号(L18)和中棉所41号(ZH41)，在田间试验条件下，设定3个施钾量，系统研究了钾素营养对不同部位棉铃棉纤维伸长发育的影响及生理基础。

To answer these questions, in the present study, an attempt was made to examine:(1) the GABA responses in mechanically dissociated Vme neurons with attached synaptic boutons by using the whole cell patch clamp technique;(2) the change of expression of KCC2 and NKCC1 during the postnatal stage in the Vme by using the Western blotting technique;(3) the percentage of colocalization of PV with KCC2 or NKCC1 during the postnatal stage in the Vme by using the double immunofluorescence histochemical techniques.

基于此，本论文进行了如下研究：(1)运用机械分离带终扣的单细胞膜片钳技术对大鼠Vme神经元对GABA的反应进行观察；(2)运用Western blotting技术结合图像分析方法观察生后发育过程中Vme神经元内NKCC1和KCC2的表达变化；(3)运用免疫荧光组织化学双重标记技术对生后发育过程中Vme神经元内NKCC1和KCC2与PV之间的共存关系进行了系统观察。

After analyzing the difference of sedimentary elements, they sum up that sedimentary gravity flows are the couping result of provenance system, slop type and lake level fluctuation and that the evolution and dominant structural framework of the Liaodong lift control the sedimentary character and distribution characteristics of the gravity flows.

通过沉积要素比较分析，提出了上述重力流的发育是物源系统、坡折类型和湖平面变化耦合作用的结果，辽东凸起的形成演化及以其为主导的构造格局决定着重力流的发育特征及分布规律。

Before the door closed fontanelle sooner or later, reflects the brain's growth also reflects the development situation of the skeletal system.

前囟门闭合的早晚，反映着颅脑的发育情况，也反映骨骼系统的发育情况。

The Middle Hymalaya Movement is the main stage of reverse faults--migration channels and traps development, and also in this stage the Leikoupo Formation petroleum system formed. The advantageous structural traps lie in low steep and low gentle structures in the broad--gentle synclines or in the north and south plunging areas of the high steep structural belts.

喜山中期运动是本区油气运移通道--断层以及圈闭发育的主要时期，也是雷口坡组成气系统形成的主要时期；其有利圈闭多发育于高陡构造带中宽缓向斜内部或高陡构造带南北两侧倾没消失部位的低陡和低缓构造。

To investigate the relationship between delayed fluorescence change and chlorophyll content of Gerbera hybrida ray floret during its development (from P1 period to P6 period), delayed fluorescence analysis of Gerbera hybrida ray floret during its development was done.

以非洲菊Gerbera hybrida为研究对象，对其生长发育过程（P1-P6期）中外轮舌状花进行延迟荧光（delayed fluorescence， DF）分析，并利用激光共聚焦成像系统对其各期表皮细胞中叶绿素的分布和相对含量进行检测，以研究非洲菊外轮舌状花发育过程中延迟荧光改变与其叶绿素变化的关系。

Main conclusion of this study is the simulation model of growth and dry matter accumulation of pepper under different water irrigation quartity, for maximum index is 100%, 90%, 80%, 70%, and minimum index is 60%. Under this theme, through systematic summarization of the achieved research result and current status related to crop growth and development model.

本试验主要研究上限100％、90％、80％、70％，下限统一为60％田间持水量这样四个不同水分条件下辣椒生长发育及干物质积累的模拟模型，在此主体下，系统地总结和分析了国内外有关作物生长发育模型的研究成果、发展现状，尤其对设施园艺作物模型的建模原理、研究方法以及模型的应用等关键问题进行了初步探讨。

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