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Therefore,tapping potencial of remaining oil to improving oil recovery,the recognition of reservoir intraformational heterogeneity in channel sandbodies is proposed and the main targets of reservoir IOR in channel sandbodies of mature oilfields are pointed out as follows:①shutting off strongly-waterflooded intervals to control ineffective circulation of injected water;②strengthening water washing in medium-waterflooded intervals in order to achieve the aimed waterflood efficiency and even to exceed it;③enhancing injection-production consistency and injector-producer ratio of non-waterflooded or weakly-waterflooded intervals for the propose of realizing effective displacement and imporving conforma nce.
根据我国东部主力油田储层绝大多数都属于河道砂体,注水开发进入高含水阶段后,层内剩余油超过层间剩余油,层内矛盾上升为主要矛盾这一特点,从挖掘层内剩余油潜力出发,提出要重新认识河流砂体储层层内非均质性,并指出高含水期河流砂体储层改善采油目标主要有:①封堵强水洗段,控制注入水无效循环;②加大中水洗段注水冲洗强度,达到目标水驱效率,并有可能超过目标效率;③提高未、弱水洗段的注采对应程度和注采井数比,达到有效驱替,提高波及程度。
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Despite evidence implicating prostaglandins as critical factor in male reproductive functions, little is known about expression and function of COX-2 in the male reproductive system. By using immunohistochemistry, RT-PCR and Western-blot, the content of this research included:(1) The expression and localization of COX-2 in mature rat and human testis were examined.(2) We investigated the changes of spermatogenesis and testosterone levels in testis after by using the COX-2 specific inhibitor-rofecoxib at 2, 4 and 8 weeks.(3) To explore the relationship between the intratesticular level of testosterone and expression of COX-2 by completely destroying the Leydig cells of mature male rats with injection of a single I.
本课题应用免疫组织化学、RT-PCR和Western-blot等方法检测以下内容:(1)在mRNA和蛋白水平检测正常成年男性及大鼠睾丸组织中COX-2的表达及定位情况;(2)实验组大鼠持续给予COX-2酶的特异性抑制剂Rofecoxib,分别于用药后2周、4周和8周检测大鼠的精子生成以及睾丸组织内睾酮浓度的变化;(3)另一组实验大鼠给予特异性Leydig细胞灭活剂EDS,在特定时间内抑制睾丸组织内合成的睾酮,于用药后2周和4周,采用免疫组织化学及RT-PCR方法观察大鼠睾丸组织内睾酮浓度变化对COX-2合成的影响。
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RESULTS:Isoalantolactone exhibited excellent anti-proliferative activities on HeLa, SHIN3 and HOC-21 and HAC-2 cell lines, while 1-O-acetylbritannilactone and britannilactone demonstrated weak anti-proliferative activities on HeLa, SHIN3, HOAC-21 and HAC-2 cell lines even at the concentration of 100 μmol/L. The apoptotic rate in isoalantolactone group with the concentration of 12.5 μmol/L was higher than that in PBS group.
结果: 异土木香内酯对上述5种肿瘤细胞的增殖均有明显的抑制作用,1-氧-乙酰大花旋覆花内酯和大花旋覆花内酯即使在100 μmol/L的高浓度下,对5种妇科肿瘤细胞的增殖不显示抑制活性;流式细胞学检查发现异土木香内脂处理后的HeLa细胞出现凋亡现象。
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Result 1 Magnetic nanoparticles, magnetic nanoparticles modified with antisense oligodeoxynucleotide of human telomerase reverse transcriptase induced HL-60 tumor cells to apoptosis, we could see typical morphologic change of apoptosis cells: karyopyknosis, chromation"s condensing and aggregation in nuclear, forming crescent-shaped or annulus structures to lean on edge of cell nucleus"s membrane and posing apoptosis body by Atomic Force Microscope, Fluorescence microscope, transmission electron Microscope 2 There was a significant difference compared with control group(p.01), inhibition ratio had significant positive correlation with medication dosage and time ;during 0.8-8μM dosage amplitude, inhibition ratio accrescenced by dosages increasing. However, the inhibition ratio would decrease when dosage over 8-80μM.
结果 1 磁性纳米粒子、修饰有端粒酶反义寡核苷酸的磁性纳米粒子诱导HL-60细胞发生凋亡,原子力显微镜、光学显微镜、荧光显微镜和透射电镜下均观察到HL-60细胞呈现典型的凋亡细胞的形态变化:细胞核固缩,核内染色质浓缩、凝聚、形成新月形或环状结构紧靠在细胞核膜边缘,并形成凋亡小体。2 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子对HL-60肿瘤细胞的生长和增殖有明显的抑制作用,与对照组相比有显著性差异(p<0.01),在剂量为0.8-8μmol/L范围内,抑制率随剂量的增加而增加,当剂量超过8μmol/L时,抑制率反而下降;3 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子可增强p53基因的表达活性,引起DNA降解损伤,反向调节细胞周期活动,促使细胞从G0期进入G1期,抑制肿瘤细胞的生长。4 修饰有端粒酶反义寡聚脱氧核苷酸的量子点能通过内吞作用进入HL-60肿瘤细胞的细胞核,可以在细胞内进行定位和促进HL-60肿瘤细胞的凋亡。
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All of 21 LPEH children had an uneventful recovery and no plicaes and fluid were detected in follow-up by US. Conclusions: The entrapped labral plicae in the inferomedial recess of hip joint could be visualized by US.
超声检查对发现髋关节内下间隙内滑膜唇皱襞嵌顿有较好的敏感性及特异性;髋关节内下间隙内发现片状稍强回声占位性结构为超声确诊LPEH的重要依据。
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The results were expressed in mean±1SD. Pearson X~2 test and One-way ANOVA test were used. The data analyzed using the SPSS (version 11.5). Results: The sensitivity, specificity, positive and negative value of US for the LPEH model on the children cadaver were 88%, 84%, 79%, 91%, respectively. With regard to the thickness of femora head cartilage, the thickness of the anterior layer or posterior layer, there were no significant differences among three groups. However, the anterior layer was thicker than the posterior layer in three groups. The fluid in hip joint was detected in all of 21 symptomatic hips, which was clear commonly (90%) in early procedure. The amount of fluid in anterior recess showed a positive correlation with age (p .05). No fluid was detected in the asymptomatic and normal hips (2mm). The mean maximum width of inferomedial recess was significantly larger than that of anterior recess (12.50±4.04mm vs.4.35±0.8mm, p 0.05) in the symptomatic hip joints. The echogenic entrapped labral plicaes were demonstrated in the inferomedial recess in all of 21 children with LPEH, whose length and width ranged from 5.3mm-25.0mm (mean,15.6±5.6mm) and from 4.0mm-17.0mm (mean,8.9±7.8mm).
结果1,尸体LPEH髋关节模型的超声诊断敏感性、特异性分别为88%、84%,阳性预测值、阴性预测值分别为79%、91%。2,21例患儿的LPEH患髋(21侧)、健髋(21侧),以及21例正常儿童健髋(42侧)的超声检查显示:髋关节周围软组织及股骨头无形态结构差别;股骨头软骨厚度无统计学差异(3.5±0.5mm vs.3.6±0.4mm vs.3.6±0.5mm,p>0.05);关节囊前层及后层厚度无统计学差异(前层厚度2.79±0.74 mm vs.2.56±0.40mm vs.2.56±0.72mm;后层厚度2.70±0.82mm vs.2.48±0.54mm vs.2.44±0.58mm,p>0.05),但LPEH患髋关节囊前、后层均较后二组有增厚趋势。3,LPEH患髋均存在关节腔内积液,且早期较为清晰;积液以髋关节内下间隙明显,内下间隙较前间隙明显增宽(12.50±4.04mm vs.4.35±0.8mm,p<0.05),其内见嵌顿滑膜唇皱襞呈稍强回声的占位性团块,长约15.6±5.6mm,宽约8.9±7.8mm,90.5%(19/21)嵌顿皱襞内未见血流信号。4,所有LPEH患髋治疗后超声复诊均显示正常。
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In this paper, by using GL index which suggested by Grubel and Loyd in 1975, the paper analyze the overall intra-industry between China and ASEAN, intra-industry structure, intra-industry of main goods and intra-industry level between China and ASEAN members.
本文利用Grubel和Loyd1975年提出的GL指数分别对中国与东盟总体产业内贸易、产业内贸易结构、主要贸易产品的产业内贸易状况以及中国与东盟各国的产业内贸易水平进行了系统分析。
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Angle at difference point of medial malleolus are significant different in man or woman and length of lateral malleolus and tibiofibular overlapping of difference person. Therefore, detail operational plan is necessary.
正常成人从内踝尖向近端皮质表面一定范围内其在胫骨远侧骨质范围内投影的夹角渐增大,内固定手术操作的空间和余地越大;外踝长度及腓骨重叠影的长度个体差异较大,术前计划需具体考虑。
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Among the sampling methods used to investigate the pathogens responsible for rhinosinusitis, maxillary sinus puncture is considered to be the gold standard. Although endoscopic middle meatal culture seems to correlate well with the results obtained by maxillary sinus puncture, the reliability of documentation of bacteria by endoscopic culture in children with rhinosinusitis is still unknown. Finally, because studies on current bacterial resistance patterns in pediatric patients are limited, we employed maxillary sinus puncture to obtain sinus secretions for bacterial culture and analysis of antibiotic resistance in children with chronic rhinosinusitis.
关於鼻窦的培养方法,一般而言上颌窦穿刺为公认获得鼻窦细菌培养的准则,虽然证据显示在成人使用内视镜中鼻道培养的结果与上颌窦穿刺所获得的培养结果相关性很高,不过目前儿童使用内视镜中鼻道培养的可信度依然不明,因此我们的研究也比较鼻及鼻窦炎病童上颌窦穿刺与内视镜中鼻道培养的结果,以厘清在儿童使用内视镜中鼻道采样培养鼻窦致病菌的可信度。
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Furthermore, out of 497 fAFLP markers, 80 special bands were found to be able to distinguish the four groups from each other and may be applied for germplasm characterization and molecular assistant classification of Meretrix clam.4 Molecular classification of two species of Meretrix clam based on fAFLP and ITS sequences4.1 The results of fAFLP maker analysis of S, G and W showed that each group had their own specific loci among which there were 53 special loci in W group, much more than those of S group (14) and G group (21). Among the 53 loci, nine were all dominant loci. These unique loci could be taken as molecular markers to distinguish W from other groups. The genetic similarity indexes and distance matrix between S and G groups were 0.9585 and 0.0424 respectively, but the genetic similarity indexes and distance matrix between W group and S or G group was 0.7939 or 0.7941, and 0.2308 or 0.2305 respectively. The results revealed that significant difference existed between W and S or G groups in molecular genetic structure. The phylogenetic trees by the methods of UPGMA and NJ also indicated that S and G populations were very closely related, while W population was a relatively independent cluster, lying beyond the species which S and G belong to.4.2 The internal transcribed spacer region of the rDNA from S group, G group and W group were PCR amplified and sequenced. The results showed that the size of ITS ranged between 1266-1269bp in W group, while those in G and S groups were 1614bp and 1520bp respectively. The GC content ranged 62.32-62.62% in W group while it was 61.77% in G group. The genetic distances between three populations of W group were 0.001~0.003, but it was 0.110 or 0.147 respectively between W group and G group or S group. Phylogenetic trees by NJ method also showed that G group was very closely related to S group, while W group was a relatively independent cluster.
在457个总扩增位点中找出了53个W的特有位点,远多于S群体(14)和G(21)群体,而且在53个特有位点中有9个出现频率为100%的位点,这些位点可以作为区分其它2个群体的特征性标记;S– G群体特有的位点有112个,其中有4个位点出现频率为100%,可作为S– G群体区别于W群体的特征性标记。S群体和G群体间的遗传相似性系数为0.9585,遗传距离只有0.0424,在NJ和UPGMA法构建的亲缘关系的树状图上均首先聚在一起,说明二者的亲缘关系很近,应属于种内群体间的关系;而W与S和G的遗传相似性系数均较小(0.7939和0.7941),相对遗传距离很大而且十分相近(0.2308和0.2305),在亲缘关系树状图上单独分出一支,也表明W与S和G群体间的亲缘关系较远。4.2 ITS序列比较分析通过对白壳文蛤、山东文蛤和广西文蛤的ITS序列扩增电泳、PCR-RFLP分析和ITS序列分析发现,W的ITS序列长度在1266-1269 bp,而S和与G的ITS序列总长度分别为1520 bp和1614 bp;从ITS1和ITS2长度来看,W分别为739-741 bp和316-317 bp,S为895 bp和414 bp,G为987 bp和416 bp;而从ITS碱基组成来看,W的GC含量在62.32-62.62%之间,而G群体为61.77%。W的3个壳色不同群体间的遗传距离仅0.001、0.002和0.003,S与G群体间的遗传距离是0.010,说明W群体内变异很小,而S与G群体间已出现明显的遗传分化,但还均属于种内群体间的遗传变异;而W与G和S的遗传距离分别达到0.110、0.147,两个类群差异显著,已远超出种内群体间的遗传变异。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。