头胎

Shoulder dystocia, defined as failure of the shoulders to deliverfollowing the head, is an obstetric emergency.

肩难产是指胎头娩出后，胎肩无法随之娩出，为产科急症。

Shoulder dystocia, defined as failure of the shoulders to deliver following the head, is an obstetric emergency.

肩难产是指胎头娩出后，胎肩无法随之娩出，为产科急症。

Microcephaly, characterized by a reduction of brain mass and head size with an intact bony calarium, is defined as a fetal head circumference either 2^57 or 3^58 standard deiations below the mean of that expected for menstrual age.

具有脑质量减少、头体积变小、有完好颅盖骨特征的头小畸形的定义是胎儿头围在胎龄预期均值的2^57 或3^58个标准差以下。

Eight healthy multiparous Chinese Holstein cows in early lactation were chosen. There were four high-yielding cows and four middle-yielding cows, separately with similar milk yield, parity and parturition date and body weight.

选择8头经产泌乳早期的中国荷斯坦奶牛，其中4头中产奶牛和4头高产奶牛(健康无病，中产奶牛和高产奶牛分别具有相近的产奶量、胎次、产犊日期和体重)，分别采用4×4拉丁方试验设计进行试验，研究日粮中补充染料木黄酮对奶牛的影响。

Bonnethead shark Females of this small hammerhead shark species were thought to mate with several males and store their sperm for later use, so scientists assumed the resulting litter of baby sharks would have several different fathers.

窄头双髻鲨科学家曾认为，雌性窄头双髻鲨有不同的性伴侣并将不同的雄鲨*储存在体内供今后孕育幼鲨，于是雌性窄头双髻鲨产下的每胎小鲨鱼都可能有若干个父亲。

This article studied differences in postpartum fatigue and birth outcomes between women who pushed immediately and those who delayed pushing during the second stage of labor. Data were collected from primiparous women in their 38th to 42nd gestational week who did not receive epidural analgesia during labor and were free of complications during pregnancy. Using a quasi-experimental design, 72 participants selected by convenient sampling were assigned based on individual participant's preference to either an experimental or control group. For the experimental group, pushing was delayed until the point after full cervical dilation at which the mother felt a strong physical pushing reflex, the fetal head had both descended to at least the +1 level in the pelvis and turned to the occiput anterior position, and uterine contractions were at least 30 mmHg. For the control group, the physician instructed mothers to begin pushing after full cervical dilation at the point when the fetal head was in the occiput anterior position and uterine contractions were at least 30 mmHg.

本研究目的在探讨初产妇女第二产程立即用力与延迟用力对产后疲惫及生产结果的影响，收案对象为怀孕38-42周初产妇女、待产期间未施打硬脊膜外麻醉，且怀孕期间无任何合并症，於待产期间向其解释研究目的及收案方法后予以收案，采类实验设计法，以方便取样并依个案之意愿分派於实验组及控制组，实验组於子宫颈完全扩张后等到强烈想用力的感觉、胎头位到达坐骨棘连线下1公分以下、胎头位置转到枕前位、子宫收缩规律强度至少30mmHg才教导向下用力；控制组於子宫颈完全扩张后即教导向下用力，共收案72位。

Fetus head attraction technique; Indication; Means; Fetus delivered time; The formation rate of asphyxia neonatorum

胎头吸引术；适应症；手段；胎头娩出时间；新生儿窒息发生率

Ten boars and 50 gilts as the founder and one boar and five gilts were raised in a mating pen. Numbers of born alive per litter at first (N=45) and second (N=35) litters of founder sows were 4.22+1.02 and 5.23+1.97 piglets, respectively.

第零代的10公50母，以1公5母并栏配种，初产活仔数和第二产活仔数分别为4.22+1.02头(45胎)和5.23+1.97头(35胎)。

MethodsThe data of 562 nulliparas with single vertex in the second stage of labor(264 cases with normal FHR,298 cases with abnormal FHR) were analyzed retrospectively.

方法回顾性分析我院足月单胎头位分娩产妇第二产程中胎心率正常者264例和胎心率异常者298例的资料。

As can calculate the size of the fetal sac and fetal head to the hip length, and the parietal bone on both sides of the fetal head between the diameter values, whereby the value you can calculate the number of weeks of pregnancy and pre-production phase.

由于可计算出胎囊大小与胎儿头至臀部的长度，以及胎头两侧顶骨间径数值，据此值即可推算出怀孕周数与预产期。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了