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Methods: 1. Male Sprague-Dawley rats were established renal calcium oxalate calculi model. 2. The different dose of LBP, medlar soak and apozem was given. The calcium oxalate crystallization, the renal cell apoptosis and the renal free radical level were detected. 3. The relationship of the renal cell apoptosis index, the renal free radical level and the calcium oxalate crystallization grade in the kidney tubule was determined.

1、给大鼠建立肾草酸钙结石模型；2、予以不同剂量的枸杞多糖，不同浓度的枸杞浸泡剂和煎剂灌喂，比较肾小管内草酸钙结晶的形成，测定肾小管上皮细胞的凋亡指数，自由基水平；3、分析结晶等级评分、细胞凋亡指数和自由基的相互关系，判断枸杞多糖预防肾草酸钙结石的作用机制和效果。

Geoffrey Arado - Find free articles by expert author Geoffrey Arado for republishing on your websites, blogs and free offline magazines.

杰弗里阿拉道-找到免费的文章，作者杰弗里阿拉道专家为重新在您的网站上，博客和免费离线杂志。

Companies also differ markedly in their beliefs about the efficacy of such promotions: whereas over 50% of sales at Estee' Lauder are associated with free gift with purchase promotions, chanel does not offer any, and Aramis is moving from gifts to sampling, with over a quarter of its marketing budget devoted to free samples of newly introduced products.

公司对於这种促销效力的看法也明显不同：与&雅诗兰黛&有超过50%的销售是和购买促销活动的免费赠品有关而相反的是，&香奈儿&并不提供任何东西，而&雅男士&则把赠品换成样品，将它超过四分之一的行销预算投注在新上市产品的免费样品上。

It will prevent the forming of free radicals to slow down the ageing process, repair drive damaged protein that free radicals break, astringe and tighten skin, reduce wrinkles, effective in improving coarse, dull, fine lines and spot skin .

改善脸部毛细血管扩张、脸色晦暗、暗疮、浮肿、肌肤粗糙、毛孔粗大等问题，恢复皮肤的红润细腻。

Do not believe the world has " truly free " lunch, game operation business just is to use game to serve as free bait, exchange bought a player " eye " and " auditive ", bale them next sell ad advocate.

不要相信天下有&真正免费&的午餐，游戏运营商只不过是用游戏作为免费诱饵，交换购买了玩家的&眼睛&和&耳朵&，然后将它们打包卖给广告主。

Do not believe the world has of course " truly free " lunch, game operation business just is to use game to serve as free bait, exchange bought a player " eye " and " auditive ", bale them next sell ad advocate.

当然不要相信天下有&真正免费&的午餐，游戏运营商只不过是用游戏作为免费诱饵，交换购买了玩家的&眼睛&和&耳朵&，然后将它们打包卖给广告主。

Stamens 6, rather long, free from tepals, inner ones basally adnate to ovary, outer ones free; anthers usually reniform, basifixed, with confluent locules.

雄蕊6，相当长，离生的花被片，内部的基部贴生于子房，外部的离生；花药通常肾形，基着的，具愈合的室。

Finally, the free vibration analysis of the 3-D beamlike lattice girders is performed using the derived property matrices of the 3-D Timoshenko beam elements and the influence of flexural rigidity, shear deformation and rotary inertia of the constituent structural members on the free vibration characteristics of the "triangular-type" and "rectangular-type" 3-D beamlike (Vierendeel and X-braced) lattice girders is studied.

最后，本文利用上述三维Timoshenko梁元素的性质矩阵，来进行三维构架的自由振动分析，并探讨各梁元素的挠曲刚度、剪切变形与旋转惯性，对三角形及四方形的梁形格状桁，自由振动特性的影响。

In the three systems, system realizes the crosslinking of PVC bases on the peroxide crosslinking mechanism, the tensile strength of crosslinked PVC has been improved somewhat, the IR spectrum of gel demonstrates that there are characteristic absorption peaks of n-alcohol that belongs to ethanol amine and benzenoid group. From the analysis of gel structure , deduces that the mechanism of crosslinking reaction: under the initiations of peroxide and high temperature, PVC yields macromolecules free radicals, at the same time , styrene"s polymerization and grafting onto PVC takes place, at last the system forms crosslinking structure through coupling between radicals; confirms that triethanol amine can absorb HC1 produced by degradation of PVC, so improves the crosslinking efficiency of peroxide, decreases the HCl"s promotion for PVC"s degradation; deduces that triethanol amine can activate the PVC macromolecules and prolong the free radicals" life-time of PVC macromolecules; the effect to the PVC macromolecule makes styrenes graft reaction easy, and thus improves the crosslinking efficiency.

三种体系中三乙醇胺/过氧化二异丙苯/苯乙烯体系基于过氧化物交联机理实现了聚氯乙烯的交联，聚氯乙烯交联后拉伸强度有一定提高，凝胶红外光谱分析证实了凝胶结构中含有乙醇胺的伯醇基团特征吸收和苯环的特征吸收，由凝胶结构分析，推断出交联反应的机理：聚氯乙烯在过氧化物和热作用下产生大分子自由基，苯乙烯在过氧化物和大分子自由基的作用下发生聚合和接枝反应，最终通过自由基之间的偶合产生交联；证实三乙醇胺可以吸收聚氯乙烯分解产生的HCl，提高了过氧化物的交联效率，消弱了HCl对聚氯乙烯降解的促进作用；推断三乙醇胺可以活化聚氯乙烯大分子并有可能使聚氯乙烯大分子自由基存在的时间得以延长，对聚氯乙烯大分子的作用使苯乙烯的接枝反应易于发生，从而提高了交联效率。

The total contents of phenol compounds of fresh Boehmeria nivea root was 200.24± 0.93 mg/g, which is 4.5 times higher than ethanol extracts of fresh Boehmeria nivea leaf, and its ability to remove ABTS free radical is 7.4 times higher than that of fresh Boehmeria nivea leaf, which is one third of Trolox's ability to remove free radical. Antioxidant components of hot water extracts of Boehmeria nivea leaf exhibited 55 and 67% lower than that of fresh leaf respectively.

sulfonic acid］和DPPH(α，α-diphenyl-β-picrylhydrazyl)自由基为最高，其次为热水萃取物和冷水萃取物，而新鲜苎麻根乙醇萃取物总酚类含量为200.24 ±0.93 mg/g，约高於新鲜苎麻叶乙醇萃取物的4.5倍，其清除ABTS自由基能力是新鲜苎麻叶乙醇萃取物的7.4倍，约为维生素衍生物的1/3倍。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。