Results Three cases of PB were biphasic type and were composed of primitive epithelial component and primitive stromal component; one case of PB was epithelial type and was shown as branching glands with clustered and well-differentiated structure. Immunohistochemical studies showed that AE1/AE3 was positive in the epithelial component in four cases, Vimentin was positive in the stromal component in three cases, thyroid transricption factor-1 was positive in two cases, CD117 was positive in one case, Ki-67 was 2% positive in one case, while P53 was negative in all cases. Conclusions The adult type PB is a rarely seen biphasic tumor.
结果 4例成人型肺母细胞瘤中3例为双向型肺母细胞瘤，由原始的上皮成分和原始的间叶成分共同组成；1例为上皮型肺母细胞瘤，表现为成片分化较好的分支状腺管结构，形态类似于子宫内膜样腺体；免疫组化4例细胞角蛋白广谱抗体原始上皮成分均阳性，3例波形蛋白抗体原始间质成分均阳性，2例双向型肺母细胞瘤甲状腺转移因子－1上皮成分阳性，CD1171例阳性，Ki-671例2%阳性，P53均阴性。
The results revealed enhanced expression of fibroblast growth factor 5 (FGF-5)-- a marker for primitive ectoderm -- in the embryoid bodies mixed with retinoic acid-loaded microspheres compared to the other treatment groups after 10 days.
结果发现，10天后与其他各组相比，在载有维甲酸微球混合拟胚体中FGF-5（成纤维生长因子5）表达增高，FGF-5是初期外胚层的标志。
The latter factor is not only the primitive motivation of the formation of traditional reproductive culture, but it can also serve as a motive force transforming reproductive culture from a traditional culture to a modern culture.
不论在经济发达地区，还是贫困地区，通过健康促进对生育文化的转化都是一个非常有效的导向机制。
Results show that Pb enrichment factors varied from 1.0～1.8 in the cultural layers, and were not quite high. However, with the history going on from the Dawenkou Culture to the Longshan Culture, the Pb enrichment factor displayed an obvious rising trend, which indicated that the Pb in the cultural layers was probably associated with the development of metallurgic activities in the middle stage of the primitive society. From 5050 cal a BP to 4000 cal a BP, China underwent Stone Age, Chalcolithic Age and Bronze Age in sequence. Pb dust in the atmosphere increased with intensifying utilization of copper resources, which was probably the main cause of the rising enrichment factor in the cultural layers.
但是随着时间的推移，从大汶口文化到龙山文化，Pb的富集系数有明显逐步上升的趋势，表明遗址剖面中的Pb很可能与原始社会中期发展起来的冶金活动有关。5 050～4 000 cal a BP间，中国先后经历了石器时代、铜石并用时代，到最后进入青铜时代，这个过程中铜资源利用越来越多导致产生的大气粉尘铅越来越多，很可能是YC1剖面中Pb富集系数逐步增长的主要原因。
Thirteen primitive indexes could be synthesized to 4 new independent indexes: principal component Z 1, Photosynthesis assimilation factor;
主成分1，光合同化因子；
Secondly, among open economy, the marketization degree of the wage does not influence the international competitiveness of the products, the primitive stock of the key element is the only factor to influence the international competitiveness of the products.
是在开放经济中，要素可以自由移动的情况下，工资的市场化程度不影响产品的国际竞争力，影响产品国际竞争力的唯一因素是要素的原始存量。
Images of women is an important factor in ancient Egyptian art, which aesthetic orientation is determined by social, economic, religious, Primitive thought, male aesthetic perspective, the positive law and other factors.
女性形象是古埃及艺术的重要因素，其审美取向是由社会、经济、宗教、原始思维和男性审美视角、正面律等因素综合形成的。
Some improvements of the primitive DEA are made by the means of randomly selecting the mutation factor and the re-initialization of the individuals in the population on a suitable time, so that it can solve the constrained optimization effectively and avoid the problem caused by premature.
通过适当时刻变异因子的随机选取和重复进行种群个体初始化的方法，对微分进化算法进行了改进，有效地解决了有约束优化问题求解困难和避免算法早熟的问题。
The full text is divided into three major parts altogether, The first part carries on comparative analysis on the electronic records and traditional records, and to how confirm electronic records getting primitive and electronic records legal effectiveness analyse by the factor queried;
全文共分为三大部分，其中第一部分就电子文件与传统文件进行比较分析，并对如何确定电子文件的原始性以及电子文件法律效力被质疑的因素进行分析；
The physical production provides the object form factor for the primitive arts, and the person own production provides the main emotion factor for the primitive art.
物质生产为原始艺术提供客体形式因素，人自身的生产为原始艺术提供主体情感因素。从自我意识和对象意识的初步建立，到。
Objective To isolate homogeneous primitive bone mesenchymal stem cells from adult bone marrow by immunomagnetic selection of nerve growth factor receptor positive cells.
目的 利用免疫磁珠法分离成人骨髓神经生长因子受体(nerve growth factor receptor，NGFR)阳性细胞，获得同质性骨髓间充质干细胞(bone mesenchymal stem cells，BMSCs)，并进行向软骨细胞诱导。
The factor analysis makes aggression variables form into two kinds: primitive aggression and sublimed aggression, accounting for 80.324% of the total variance.
因子分析将攻击变量分为两类：原始攻击与升华攻击，方差累计贡献率为80.324%。
Relevant analysis, a relatively primitive medical facilities in rural areas, the rural masses lack of knowledge is an important factor leading to this phenomenon.
有关部门分析认为，农村医疗设施相对简陋、农村群众对相关知识的缺乏是导致这种现象的重要因素。