化学合成

From the healing point of view, if amaroli proves to be less dangerous than the therapeutic use of drugs, synthetic hormones and various other assorted chemical substances, if it proves less corrosive and nutritionally harmful than Coca Cola and 7-Up, if it is less dependence-producing and intoxicating than alcohol, less distasteful than eating gelatin, manufactured from the hoofves and tendons of animals, then I am sure it will be a boon to humanity.

从康复角度看，如果 amaroli 证明比应用药物，合成激素，和各种其他各种各样化学物质治疗更少危险，如果它证明比可口可乐和7-Up 更少腐蚀和营养危害，如果它比乙醇更少产生依赖和致毒，比吃明胶（它是从动物的蹄和筋腱制造的）更少讨厌，那么我肯定，它对人类必将是一个福音。

The effect of different calcium chloride concentration, reaction time and neutralized acid on yield of tagatose was investigated by single factor tests. Results showed that the condition, such as calcium chloride (0.01～0.03 mol/L), reaction time(20～40 min), acetum, carbon dioxide, phosphate acid to synthesize tagatose was suitable.

通过单因素实验，确定了以D-半乳糖为原料进行化学法合成D-塔格糖的工艺条件为：CaCl2的添加量在0.01～0.03 mol/L，反应时间在20～40 min，并用醋酸、CO2、磷酸中和时D-塔格糖产率较高。

A series of platinum terpyridyl acetylide complexes were designed and synthesized, which exhibit 〓MLCT emission with high quantum yield and long lifetime in the fluid solution at room temperature.

本论文设计、合成了一系列炔基为辅助配体的多吡啶Pt络合物，系统地研究了它们的光物理性质，探讨了其在超分子化学中的应用，取得了一系列有意义的研究结果：一。

The invention relates to a synthesis method of the chemical luminous material acridine ester DMAE question mark NHS.

本发明涉及一种化学发光物质吖啶酯DMAENHS的合成方法。

P1 BMSCs, P3 CCs, and P3 ADAS were implanted into collagen/hyaluronic acid scaffold at different concentrations of 10%, 20%, 50%, 80%, and 100%, and the cells were then three-dimensionally cultured in serum-free culture media. Two weeks later, SO staining and immunohistochemical staining were employed to observe the synthesis between of chondroitin sulfate and type II collagen.

取P1骨髓间充质干细胞，P3软骨细胞和P3脂肪源性成熟基质细胞种植入不同比例(10%，20%，50%，80%，100%)的胶原/透明质酸支架中，在无血清培养液中三维培养。2周后，用SO染色和免疫组织化学染色分析，观察硫酸软骨素和Ⅱ型胶原合成情况。

Pentanediol dithiophene ester was synthesized by means of alcoholysis reaction using 2,4-Pentanediol and Aroly chloride as raw materials, and 1H NMR spectrum was characterized and it can not be explained.

以2，4-戊二醇和芳酰氯为原料，通过醇解反应合成了一种新的内给电子体化合物二(2-噻吩甲酸)-2，4-戊二醇酯，表征其1H-NMR谱，发现化学位移在2附近出现了三组亚甲基峰，无法解释。

The results showed that (1) COX-2 mRNA and protein existed in the mature male rat testis. COX-2 was localized in spermatocytes by immunohistochemistry.(2) COX-2 also existed in adult man testis. COX-2 protein was positively stained in spermatocytes and Leydig cells.(3) 2 weeks after administration of rofecoxib, the level of testosterone in the whole testis reached its lower values, being only 50% of control values. However, testosterone level recovered during 4 weeks. After such treatment, histologic examination of these testes showed atrophy of the seminiferous tubules and maturation arrest of spermatogenesis.(4) 2 weeks post-EDS, expression of COX-2 decreased significantly (P.005), in comparison with vehicle-treatment control. 4 weeks after treatment, a new generation of fetal like Leydig cells repopulated in the testicular interstitium resulting in COX-2 expression partially recovered. Although the expression of COX-2 mRNA and protein are enhanced at 8th week after using external testosterone, it wasn't significant higher than control group.

实验研究证明：(1)正常成年雄性大鼠睾丸组织中COX-2在mRNA和蛋白质水平均存在表达，免疫组织化学结果显示COX-2定位于曲细精管内的生精细胞；正常成年男性睾丸组织中同样存在COX-2表达，免疫组织化学结果显示COX-2定位于曲细精管内的生精细胞和Leydig细胞；(2)服用特异性COX-2酶抑制剂rofecoxib 2周后，实验组大鼠睾丸组织内睾酮的含量减少，为正常对照组的50％；持续用药4周后睾丸组织内睾酮浓度逐渐恢复至正常水平；COX-2酶活性降低后病理组织切片显示睾丸内曲细精管萎缩，生精紊乱，持续用药4周时影响最明显；(3)注射特异性Leydig细胞杀灭剂EDS 2周后，实验组大鼠睾丸组织内睾酮浓度降至极低水平时，COX-2的蛋白和基因表达水平也显著低于正常空白对照组（P.005）；使用EDS后第4周，睾丸组织中的睾酮浓度逐渐回升，同样组织中COX-2蛋白表达和mRNA表达水平也相应提高接近正常水平；使用EDS后4周开始给予外源性睾酮，6周和8周时COX-2表达水平的绝对值虽有提高，但与正常大鼠空白对照组比较并无显著性差异，说明外源性雄激素刺激睾丸合成COX-2的作用并不明显。

The idea of analysing or synthesising small quantities of chemicals in a chip-sized apparatus is not new, but labs on chips have conventionally relied on systems of tiny pipes etched into them to move the chemicals around.

在芯片大小的仪器上对少量的化学物质进行分析或人工合成这一概念并不算新，但是传统的片上实验室所依赖的系统是通过细微的蚀刻通道来导引化学物质的移动的。

The idea of analysing or synthesising small quantities of chemicals in a chip-sized apparatus is not new, but labs on chips have conventionally relied on systems of tiny pipes etched into them to move the chemicals around.

在一个芯片大小的设备上分析、合成少量化学物质的想法并不新鲜，但芯片上的实验室仍旧依靠蚀刻在芯片上细小的管道系统输送化学物质。

V-triazole was firstly prepared by Von Pechmann and Ven Baeyer in 1888, and the study on its derivatives has been very active in the past century.

中文题名新型连三唑衍生物的合成及其抗菌性能研究副题名外文题名 Studies on synthesis and antibacterial activity of new derivatives of 1，2，3-triazoles 论文作者陈敏东导师吕士杰研究员学科专业物理化学研究领域\研究方向有机合成学位级别博士学位授予单位中国科学院兰州化学物理研究所学位授予日期2001 论文页码总数153页关键词连三唑杂环化合物抗菌活性馆藏号BSLW /2003 /O626 /2 连三唑最早于1888年由Von Pechmann和助手Ven Baeyer制得，一个多世纪来连三唑衍生物的研究依然十分活跃。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失