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Objetive:To investigate the histopathological features and detect the mutation of JAK2V617F in PV、ET and IMF;to analyze the effects of the stages of myelofibrosis and the mutation on the number of leucocyte in PV and ET patients;Methods: the morphological features of 69 patients who dignosed in the first time were studied by HGF and Gomori stains ; the mutation of JAK2V617F was detected in 38 blood or marrow samples of PV、ET and IMF patients by real-time PCR;the effects of the stages of myelofibrosis and the mutation on leucocytes were analyzed;Results: Different stages of reticulin were observed in 15 PV and 15 ET patiens'marrow sections,and the cytosis、the pleomorphism and the bone trabecula side location of megakaryocytes were observed in all PV、ET and IMF patients;the means of leucocyte in patients with and without JAK2V617F were 20.4×109/Land 11.4×109/L respectively;the P value was 0.367 as comparing the leucocytes among different stages of reticulin increasing.

目的：探讨PV、ET、IMF患者的骨髓病理特点并且检测JAK2V617F突变的发生率，分析骨髓中纤维增生程度以及JAK2V617F对PV、ET患者白细胞数的影响；方法：69例初诊患者的骨髓切片经HGF染色以及Gomori染色后进行形态学研究；并利用real-time PCR法测38例患者的骨髓或者外周血的JAK2V617F突变；分析骨髓切片中纤维组织增生程度以及JAK2突变对患者白细胞数的影响；结果：15例PV和15例ET患者的骨髓切片中可以观察到不同程度的纤维组织增生，所有PV、ET、IMF患者骨髓病理中可见到巨核细胞增多、巨核细胞多形性改变以及巨核细胞定位于骨小梁旁；12例PV、4例ET、4例IMF中检测到JAK2V617F；有突变和无突变患者发病时白细胞数均值分别为20.4×109/L和11.4×109/L，比较不同纤维增生程度的PV、ET患者的白细胞数均值，P值为0.367。

The results indicate that: the macroslructural features of seed surface, including smooth type, rugulose type and tuberculate type, may suggest the evolutionary trend from smooth type to rugulose type, from rugulose type to tuberculate type; the microstructural features of outer epidermis can be divided into two types, viz. verrucate type and reticulate type. The former included S. grandiflora, S. chinensis, S. elongata, S. lancifolia, S pubescens, S. henryi, S. repanda, the latter included S. propinqua and .S. plena.

结果表明：该属的种子宏观形态呈现平滑、细皱纹或瘤状突起，并认为五味子属种子形态可能有从平滑到有细皱纹再到有瘤状突起的演化趋势；该属种皮表面微观形态可分为疣状突起型(如：大花五味子、北五味子、东亚五味子、狭叶五味子、毛叶五味子、翼梗五味子和二色五味子)和网纹型。

Firstly, influenced by climate, topographical feature, soil and hydrological and geographical features, there was drought, flood, salinification, desertification and barren in Daxing, biological protection is necessary as a protective barrier to control sand from Yong Dinghe River bed Secondly, the windbreak system has features of urban forestry with aesthetic character and reasonable forest structure and arrangement.

首先，受气候、地貌、土壤和水文地质等多种因素制约，旱、涝、碱、沙、瘠等自然灾害普遍存在，防护林体系的生态环境保护作用应当得到充分体现，要成为首都&南大门&的生态屏障保护及永定河沙地的风沙源控制带。其次，要体现大城市城郊防护林体系的建设特点，布局合理，结构合理，具有一定的风景美学价值。

These 375 patients had a median age of 50.57±10.46(range,19-72) with 87.4%HBsAg positive and 4.3%anti-HCV antibody positive;The apparent peak incidence age was 40～60 years old,and the ratio of male to female was 10.7:1;The 3 and 5 year postoperational survival rate were 52%and 38%;The tumour numbers(p=0.000),tumor size(p=0.025),histological pattern (p=0.000),nuclear features(p=0.000),differentiation(p=0.001) and vascular invasion(p=0.000) were significantly correlated with prognosis.The postoperational survival time of thin trabeculae pattern,compact pattern and pseudoglandular pattern were significantly longer than that of thick trabeculae, scirrhous pattern,and solid patternp＜0.009the postoperational survival time of 1 and 2 grade based on nuclear features were significantly longer than that of 3 and 4 grades(p=0.000The small cell variant,osteoclast-like giant cell variant, and spindle cell variant were mainly composed of thick trabeculae pattern and solid pattern,which were significantly different from that of clear cell variant.

结果1。本组资料显示肝细胞癌发病年龄19～72岁，平均50.57±10.46岁，发病高峰年龄40～60岁，男女比例为10.7：1；HBsAg87.4%，anti-HCV抗体4.3%；术后3年生存率为52%，5年生存率为38%；肿瘤数目(p=0.000)、肿瘤大小(p=0.025)、组织学结构类型(p=0.000)、核分级(p=0.000)、分化程度(p=0.001)及血管浸润均(p=0.000)与预后明显相关；其中组织学结构类型中细梁状型生存时间与致密梁状型和腺样型无明显区别(p＞0.05)而明显高于粗梁状型、实性型和硬化型(p≤0.009)，硬化型生存时间与实性型之间无明显区(p＞0.05)而明显低于其余各型p≤0.006核分级1级与2级生存时间无明显区别(p＞0.05，核分级3级与4级生存时间无明显区别(p＞0.05)，而核分级3级生存时间明显低于2p=0.000小细胞型、巨细胞型和梭形细胞型主要由实性型和粗梁状型组织学结构类型构成，明显不同于透明细胞型(主要由细梁状型和粗梁状型构成(p≤1.006)。2。

Serta has developed the site to include natural prairie landscaping, overland drainage bioswales, previous paving, and other features which reinforce Serta's deep commitment to preserving and protecting the site's natural features.

舒达开发了网站，包括天然草原环境美化，排水bioswales陆路，以前铺路，并加强舒达的坚定承诺，维护和保护站点的自然特色等特点。

Evidence from seed-coat micromorphological features supports placement of Ripogonum outside Smilacaceae and inclusion of Heterosmilax in Smilax, which are also consistent with palynological and molecular evidence. Within Smilax, seed-coat micromorphological features suggest close relationships between most of the species of sect.

种皮形态分析结果支持将Ripogonum属从菝葜科中分离、独立成科，支持将肖菝葜属与菝葜属合并的观点，这与孢粉学和分子证据的分析结果一致；推测肖菝葜属和菝葜属的土茯苓组sect。

Netizen " love southernly " in the narrate in the card he makes QQ hidden from view the experience of body a group of things with common features, and deepness ground analyses QQ concealed the reason of body a group of things with common features.

网友&南方之恋&在帖子中叙说了他成为QQ隐身族的经历，并深度地剖析QQ隐身族的原因。

Objective:To study the biological features of mouse spermatogonial stem cells,in order to indentify spermatogonial stem cells and to realize the features in vitro.

目的：探讨培养状态下精原干细胞的生物学特征，为体外鉴定精原干细胞及认识精原干细胞在体内的生物学行为打下实验基础。

It suggests that many plumage features are/can be shared by all three of Pallas's/Middendorff's/Styan's, including blackish-looking greater coverts, white tips to inner web of one or more tertials, white tips to tail feathers and greyish on face/nape, so birds need to be identified on a combination of features.

它建议许多羽毛特徵是或可能是被小蝗莺/北蝗莺/史氏蝗莺共用的，包括看起来带黑色的大覆羽，一或更多根三级飞羽内侧羽瓣的白端，尾羽的白端，以及带灰色的脸/颈背，所以必须以这些特徵综合来辨识。

The Paleoproterozoic Beidahe Group-complex remains as continental shivers in the interior of the North Qilian orogen. In its early stage of development, there occurred abundant amphibolite. The protolith of the amphibolite is basalts. The Alk-∑FeO-MgO plot, REE features and Rittmann index show that the protolith belongs to the calc-alkaline suite and exceptionally shows the subalkaline character. The rock is characterized by higher Al2O3 and ∑FeO and lower Mg#, indicating that it has a higher degree of compositional evolution and that the formation of volcanic rocks is related to activation of older crust. Highly fractionated REE patterns and amphibolite on the Ti-Zr-Y plot, Ni-FeO/MgO plot and Ta/Yb-Th/Yb plot all indicate the characteristics of volcanic arcs and active continental margins. On the geochemical diagram of basalt, the overall REE features are in the main analogous to those of calc-alkaline island-arc basalt, with Sr87/Sr86=0.71617–0.72033,Nd143/Nd144=0.512414–0.512495 and εNd=–2.79 to –4.37,εSr=245.78–305.3, showing that the magma was derived from the crust or subjected to contamination with the lower crust below the continent.

提要：以大陆碎块形式残存于北祁连造山带内部的古元古代北大河岩群早期发育有大量的斜长角闪岩，其原岩为玄武岩，Alk—∑FeO—MgO图解，REE特征，里特曼组合指数等均显示斜长角闪岩属钙碱性系列范围，个别显示弱碱性，斜长角闪岩具有较高的Al2O3，∑FeO和低的Mg#，这些特点反映其成分演化程度较高，表明火山岩的形成与古老地壳的活化有关，有较强分异的稀土元素分配模式，在Ti—Zr—Y图，Ni—FeO/MgO图解和Ta/Yb—Th/Yb图解上斜长角闪岩均显示火山弧或活动大陆边缘的特点，在玄武岩的地球化学形式图，稀土元素整体特征与钙碱性岛弧玄武岩基本相同；87Sr/86Sr=0.716 17～0.720 33， 143Nd/144Nd=0.512 414～0.512 495，εNd=-2.79～-4.37。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了