ad. [æd]
- ad.的基本解释
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副词
- 相关中文词汇
- 副词
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Structures of Na~+-AD ion-complexes with 1 or 2 H2O molecules were obtained. It was found that H2O can bond with Na~+ in the structure of Na~+-AD to form Na-O van der Waals bond. H2O molecule can also bond with N or O atoms in AD moiety to form H-bonds as N-H…Ow or O…Hw-Ow. The former process takes place more easily. The most stable structures of Na~+-AD ion-complexes with 1 and 2 H2O molecules are W-C7AB and 2W-C7AB, respectively.αB conformer of Na~+-AD can not exist in the presence of 2 H2O molecules.
研究发现水分子可以结合在Na~+-AD络合离子中的Na~+附近形成Na-OW范德华键，也可以与Na~+-AD络合离子骨架结构中电负性较强的N或O原子结合形成N-H…OW或O…HW-OW氢键，相对而言，水分子更容易结合在Na~+-AD络合离子中的Na~+位置，Na~+-AD最稳定的带1个或2个水分子的结构分别为W-C7AB和2W-C7AB，Na~+-AD络合离子的αB构象在2分子水存在的情况下完全消失。
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The influences of the inclusion of Na~+ into each conformer (C7AB, C7"AB, C7eqB, C5A, C7axB orα"B) of AD molecule on the Ramachandran angles of molecular backbone and the hydrogen bonds in AD moiety were discussed in detail. It was found that in the forming process of bidentate structures of Na~+-AD ion-complexes, the original H-bonds in AD molecule were fully broken down, accompanying with the new formation of the two Na-O bonds.
论文中详细探讨了Na~+-AD络合离子六种构象的空间构型，分析了丙氨酸二肽与Na~+作用过程中AD分子骨架Ramachandran角及分子内N(1)–H(1)…O(2)、N(2)–H(2)…O(1)、N(1)–H(1)…N(2)和N(2)–H(2)…N(1)氢键的变化，研究发现Na~+与AD分子形成双齿结构时，AD骨架中原先的氢键全部被破坏，继而形成了两个新的Na-O键；Na~+与AD分子形成单齿络合离子时，AD骨架中原先的氢键或者得到增强或者断裂之后出现新的强度更大的氢键。
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After linearisation by restriction enzyme PacI, the recombinant plasmids were transfected into HEK 293-cells and amplified to give large quantities of infectious recombinant adenovirus carrying the sequences of si-FOXO1s, designated Ad-si-FOXO1-1, Ad-si-FOXO1-2, Ad-si-FOXO1-3, Ad-si-FOXO-pan and Ad-NC, respectively.
人工合成si-FOXO1s的cDNA序列，退火形成的双链cDNA克隆到腺病毒表达载体pAdTrack-CMV上，经PmeI线性化后与pAdEasy-1细胞内同源重组，最后在HEK293细胞中包装为重组腺病毒，分别命名为Ad-si-FOXO1-1、Ad-si-FOXO1-2、Ad-si-FOXO1-3、Ad-si-FOXO-pan和Ad-NC。
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quasi ad lib：(意)近似随意处理(ad libitum)的方式
quasi(意)几乎,近首,好像. | quasi ad lib.(意)近似随意处理(ad libitum)的方式. | quasi allegretto(意)近乎小快板(allegretto).
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ad libitum：(缩写为ad lib.)随意地(演奏者可任意改变一段音乐的表演色调和速度)
Prestissimo 最急板;最快速度 | Ad libitum (缩写为ad lib.)随意地(演奏者可任意改变一段音乐的表演色调和速度) | Rubato 节奏自由
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ad libitum：(缩写为ad lib.)随意地
Accelerando (缩写为accel.)渐快 | Ad libitum (缩写为ad lib.)随意地 | Adagietto 小柔板(比柔板略快)