根的

Methods To divide 147cases cacodontia which need root-canal therapy into two groups randomly, 90 cases in the Tinidazole root-canal disinfect group, 57 cases in the Tinidazole root-canal filling group.

方法对147例做根管治疗的患者随机分为两组，替硝唑根管消毒组90例，替硝唑根管充填组57例。

Till today, we have extracted and purified alkaloids from from Macleaya Cordata, Chelidonium Majus L., Tripterygium Wilfordii Hook f., Sedum Sarmentosum Bunge, and obtained pure sanguinarine, ethoxysanguinarine, oxysanguinarine, chelidonine, chelerythrine, ethoxychelerythrine, chelilutine, chelirubine, protopine,α-allocryptopine,β-allocryptopine, coptisine, berberine, corysamine, bocconine; triptolide, tripdiolide, triptonide, wilforddine; N-methylisopelletierine, dihydro-N-methylisopelletierine, sarmentosin etc.

我们对博落回、白屈菜、雷公藤、垂盘草等天然植物进行了大量的提取和分离研究；并分离出了血根碱、乙氧基血根碱、氧化血根碱、白屈菜碱、白屈菜红碱、乙氧基白屈菜红碱、白屈菜黄碱、白屈菜玉红碱、原阿片碱、α-别隐品碱、β-别隐品碱、黄连碱、小檗碱、沙明碱、博落回碱，雷公藤内酯醇、雷公藤内酯二醇、雷公藤内酯酮、雷公藤碱，N-甲基异石榴皮碱、二氢- N-甲基异石榴皮碱、垂盘草甙等单体。

The screw entry point was located at the tip of transverse process. The average inclination angle should be 10°-20° headward and 30°-40° toward neutral line respectively. The screw was inserted and entered into the vertebral body along the external cortex of pedicle. The integrity of cortical bone around screws, the distance to segmental blood vessels and the penetration of cortex were observed after operation to evaluate the accuracy and safety of screw placement. Among 160 thoracic pedicle screws that were implanted in 34 cases, 148 screws (92.5%) were accurately inserted inside the costotransverse unit, and 12 screws (7.5%) were misplaced according to the image of X-ray and CT thin-slice scan.

应用椎弓根外内固定技术2004/2007年在中山大学附属第三医院骨科治疗34例患者，固定前采用CT加密扫描测量进钉点、进钉点至椎体前缘的深度、进钉角度和直径，固定中椎弓根钉入点为横突尖，进钉方向为平均向头侧倾斜10°~ 20°、与中线成角30°~40°，顺椎弓根外侧皮质进入椎体，固定后CT加密扫描观察螺钉周围的皮质骨是否完整、是否靠近节段血管、是否穿透皮质骨，评价置入钉的准确性和安全性。34例患者共置入160枚胸椎椎弓根螺钉，固定后CT加密扫描和X射线片观察到148枚(92.5%)螺钉置入准确，12枚(7.5%)螺钉发生错置。

Sulphur-containing amino acid of transgenic crowtoe plants analysis showed that the content of sulphur-amino acid of transgenic zeolin crowtoe plants was significantly higher than that of the content of the transgenicγ-zein crowtoe plants and non-transgenic crowtoe plants (P.01), but there was no significant difference between the transgenicγ-zein plants and non-transgenic plants.

含硫氨基酸数据分析表明，转zeolin基因百脉根植株含硫氨基酸含量极显著高于转γ-zein基因百脉根植株和非转基因百脉根植株的含量(P.01)，但转γ-zein基因植株与非转基因植株间差异不显著。

Debris scores were calculated after photographing with a digital camera and the number of visible open dentinal tubules was evaluated by SEM.

采用数码照相机照相和扫描电镜观察，分别比较根尖1/3区和根中1/3区根管内的碎屑百分数和牙本质小管开口数。

In addition, AM fungi from a wide range of environmental conditions (originally isolated from north, central and south China) were used to study the ecological adaptability of AM fungi and the influence of edaphic conditions on AM fungal growth and metabolic activity.

丛枝菌根共生体由宿主植物和真菌共同组成，菌根真菌的生长、代谢活性、菌丝分布以及生态适应性等特征不但与菌根效应、菌根真菌的生态功能密切相关，而且受到宿主植物和土壤条件的影响。

The epineurial vessels run along the nerves length and gave off branches, distributing along nerve bundle, to enter into endoneurium. The endoneurium contained only capillaries. Arteriolovenular anastomoses were few in trigeminal nerve root. The distribution of microvessels in trigeminal nerve root was uneven. The number of microvessels in the medial portion was less than that of the distant.

神经外膜血管沿神经根径向走行，沿途再发侧支斜行或横行入神经束之间，顺神经根束分布，并发侧支进入神经内膜；半月结内微血管围绕神经节细胞分布；三叉神经根内的微血管配布不均，其近侧端微血管数量较少，远侧端微血管数量较多。

In the meantime, the rhizosphere nutrient mechanism, by which the growth improvement of the mixed stand of Pinus koraiensis and Fraxinus mandshurica was obtained, was also discussed. The results are as follows:(1) the element contents in the root tissue and soil can be determined in the same time by electron microprobe analysis.

摘 要：本文通过电子探针技术、根垫法、剥落分离法等实验技术对红松苗木根土界面性质及调控进行了研究，同时通过剥落分离取样法对红松与水曲柳混交林增产的根际营养机制进行了探讨。

From 2004 to 2007, 34 cases were treated with extrapedicular screw fixation in Department of Orthopaedics, Third Affiliated Hospital of Sun Yat-sen University. The screw entry point, angle, depth and diameter were measured and defined on the thoracic vertebrae pedicle by CT thin-slice scan in standard prone for all cases before operation. The screw entry point was located at the tip of transverse process. The average inclination angle should be 10°-20° headward and 30°-40° toward neutral line respectively. The screw was inserted and entered into the vertebral body along the external cortex of pedicle. The integrity of cortical bone around screws, the distance to segmental blood vessels and the penetration of cortex were observed after operation to evaluate the accuracy and safety of screw placement.

应用椎弓根外内固定技术2004/2007年在中山大学附属第三医院骨科治疗34例患者，固定前采用CT加密扫描测量进钉点、进钉点至椎体前缘的深度、进钉角度和直径，固定中椎弓根钉入点为横突尖，进钉方向为平均向头侧倾斜10°~20°、与中线成角30°~40°，顺椎弓根外侧皮质进入椎体，固定后CT加密扫描观察螺钉周围的皮质骨是否完整、是否靠近节段血管、是否穿透皮质骨，评价置入钉的准确性和安全性。34例患者共置入160枚胸椎椎弓根螺钉，固定后CT加密扫描和X射线片观察到148枚(92.5%)螺钉置入准确，12枚(7.5%)螺钉发生错置。

The extraction and purification technology of P. Lobata isoflavone and puerarin from extracting solution was studied.

研究了从葛根提取液中分离葛根异黄酮和提纯葛根素的工艺条件。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。