背腹性

Based on the study in Lotus japonicus, a model legume plant in Papilionoideae, scientific groups led by Luo Da demonstrated that TCP proteins have been independently recruited as determinants of petal identities along the dorsoventral axis in two distant lineages of flowering plants Antirrhinum majus and Lotus japonicus, suggesting a synapomorphic origin for the mechanisms in the control of floral zygomorphy.

以蝶型花亚科的百脉根为研究对象，罗达等研究组阐明了在豆科与其他物种基因组中调控花对称性发育的分子机制具有共源性，揭示了在高等植物花形进化过程中，不同进化关系的开花植物独立地招募TCP基因，调控了两侧对称花发育过程中背腹轴的发育。

There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小，简单的手段和分析不能满足其需要，笔者结合各种运动生物力学仪器优点及射箭项目的特性，选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试，运用相关软件及数理统计方法，对运动员的射箭动作技术，从射箭动作的姿态构架、肢体运动特点，身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析，结论及建议如下：结论：第一，姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标；第二，各动作阶段所用时间的长短不能作为技术评价指标，但举、开弓的时间相对较固定，开举弓时间比与中国国家队射箭成绩正弱相关达到显著性；第三，闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性，可作为身体素质、选材及成绩预测的参考依据；实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异；第四，射箭运动员实射时身体在前后方向上的稳定性较差，这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关；第五，运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够，背部肌肉用力特征不明显，撒放技术合理性不高。

Curvature dorsalis...背?p dorsal suture ...背腹性 dorsiventrality

相对于心皮的中脉处的一条缝线，称背缝线，在这二条缝线处都有维管束分布。。。。

OBJECTIVE:To study the relationship between nitric oxide synthase in ventromedial hypothalamic nucleus,dorsomedial hypothalamic nucleus and exercise-induced fatigue.

目的：研究下丘脑腹内侧核和背内侧核神经元中一氧化氮合酶与运动性疲劳的关系。

On the radiographs above in the ventral-dorsal view, the arrows outline the luxation sides on the sacroiliac joints and fracture on the second coccygeal vertebrae.

上图之手术前 X 光是骨盆部位之腹背照和侧照，从腹背照中可看到明显的双侧性肠荐关节脱位和第二尾椎骨折。

From 136 to 138, the expres- sion retrieved ventrally and expressed at the ventral half of the central tube (137) and the ventral horn especially in motor neurons (E7 and E8). Thus, the dorsal terminating axons relating to nociception and thermore?

到民至 Es麻Sema 3A的mRN的表达向腹侧撤退，主要在脊髓中央管周围的腹侧和前角运动神经元，这样使背侧投射性的痛温觉神经元轴突仅进入脊髓后角第 I、11层而不进一步向腹侧投射。

In addition, the South Korean researchers identified the maintenance of embryonic stem cells pluripotent Rap2GTPase gene in control of vertebrate dorsoventral axis structure of Nodal signal-regulated protein in the process of mechanism.

此外，韩国研究者查明了维持胚胎干细胞多能性的Rap2GTPase基因在控制脊椎动物背腹轴结构形成的Nodal蛋白质信号调节过程中的作用机理。

We propose that the noncell-autonomous effects of Spemann's organizer on dorsoventral patterning are executed in part by diffusible signals that directly bind to and neutralize ventral BMPs during gastrulation.

我们提出，施佩曼组织器对背腹式的非细胞自发功能，有部分是通过原肠胚形成过程中，直接结合和抵消腹部BMP的扩散性信号所发挥的。

The ray has a dorsoventrally flattened body.

鳐鱼有背腹性的扁平身体。

Ovary with as many locules as sepals, rarely more, apex flat or conic, often with a depressed nectary surrounding base of each epipetalous stamen; stigma capitate or hemispheric, entire or lobed, upper 1/2-2/3 receptive.

子房室与萼片同数，很少更多，先端平或圆锥形，通常具一背腹扁平蜜腺围绕每个花瓣上着生的雄蕊的基部；柱头头状或半球形，全缘的或浅裂，上面的1/2-2/3有感受性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。