百度试题 结果1 题目英语翻超级简单的find the derivative of y in the following when x=1.xy3+x2=2 相关知识点: 试题来源: 解析 把X=1带入方程,得到y3+12=2;y3=1y=1所以y的值是1反馈 收藏
The molecules of modified choline analogues used as the second surfactant exhibited selective cytotoxicity of different degrees toward monolayer tumor cell lines along siloxy choline derivatives L1L5 and their heterocyclic analogues L6, L7 (very high—L2, high—L5, moderate—L1, L3, L7 and noncytoto...
of DA, presumptively leading to sensation of reward; this relationship was enhanced at higher doses of MTA (5.0 mg/kg compared with 2.5 mg/kg)[65]. MTA also acts as a MAO-A inhibitor and affects peripheral norepinephrine regulation through both stimulation of release and inhibition of ...
In the present invention there are disclosed derivatives of 5-substituted pyrrolo[3,4-d]pyrimidine-2,4-diones of the general formula I, in which the substituents have specific meaning, further process of their preparation, pharmaceuticals in which the derivatives are comprised as well as the use...
XXI. THE SYNTHESIS OF DEOXY AND CHLORODEOXY DERIVATIVES OF KANAMYCIN. 1) Deoxykanamycin has been synthesized in a four-stage sequence beginning with kanamycin. Kanamycin has been converted to tetra-N-carbobenzoxykanamycin, an... T Tsuchiya,S Umezawa - 《Bulletin of the Chemical Society of ...
The compounds of the type having an side chain attached through the 1-oxygen atom thereof directly to a heterocyclic nucleus comprising an N-carbonylisoindolinyl radical and wherein the 1-oxygen atom of the side chain is attached directly to the 4 position of the isoindolinyl ring are useful...
I would like to get the time derivative of x with respect to t (time) but x^2 is a chain rule and xy would be a product rule. Ive tried to solve it myself in the code below, its probaly totally wrong with my horrible coding skills. ...
Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China Key words artemisinin; non-steroidal anti-inflamma- tory agents; SM735; immuno-suppressive activity 1 Project supported by the Knowledge Innova- tion Program of the Chinese Academy of Sciences (No KSCX...
Interaction of 2-(20-pyridyl) benzimidazolyl derivative ligands with group 12 metal ions: coordination, structures and luminescence. Dalton Transact 2006;48:... DLD Louise,T Mccormick,XY Liu,... - 《Dalton Transactions》 被引量: 33发表: 2006年 Interaction of 2-(2'-pyridyl)benzimidazolyl deri...
PROCESS:O,N-Dicarbobenzoxy-des-N-methylerythromycin A is reacted with excess ethylene carbonate, to give 11, 12-cyclic carbonate compound shown by the formula II. The compound shown by the formula II is reacted with a methylating agent (e.g., methyl iodide, dimethyl sulfate, etc.) in...