发现物

Rapid identification and efficient structural elucidation of metabolites are vitally important in metabonomics, phytochemistry and drug discoveries from the natural sources.

快速定性并有效地确定代谢物结构是代谢组学、植物化学和天然药物发现等研究的重要内容。

We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium , while the other, paired with barium, has been called radium.

我们发现沥青铀矿物中至少含有两种放射性物质：与铋伴生的命名为钋，与钡伴生的命名为镭。

By the observation under the transmission electron microscope, it was founded that Nisin extract made the cell distorted and plasmolysis, followed by cell broken and cell components releasing which turned the cell into irregular residues.

透射电镜观察发现，加入乳酸链球菌素后，菌体变形，出现质壁分离现象，进而菌体细胞破裂，细胞内容物大量外泄，菌体成为不规则残片。

In 0.40 mol/L HAcNaAc(pH=5.00) buffer solution, a highly sensitive complex catalytic hydrogen wave of Rh5NO2PADAT was obtained by using singlesweep polarograph.

但在极谱分析中应用未见报道。本文研究发现，在HAc-NaAc缓冲溶液中，铑与5-NO2-PADAT形成的配合物于-1.20Vvs。

Both the increase of lipid peroxidation reaction rate and the shortening of the latent period were dependent on the pre-existed lipid peroxides in liposomes. Al3+ accelerated the oxidation of Fe2+ in liposomal system only when liposomes contain pre-exist peroxides. The addition of Al3+ to the liposomal suspension resulted in a marked increase of turbidity of the suspension and decrease of fluidity of the liposomes.

这可能是因为在脂质体存在的条件下，Al3＋加速了Fe2＋的氧化，且加速作用与脂质体中原先存在的过氧化物的含量有关；另一方面，Al3＋可以引起脂质体的聚集，表现为浊度的增加；测量脂质体上标记的脂肪酸自旋标记物5－ Doxyl stearic acid 的ESR 波谱发现： Al3＋降低了脂质体的膜脂的流动性。

The results showed that Non-haemagglutinating activity was showed in the isolate. In agar diffusion test,there was a clear precipitin band formation to anti-IBDV specific serum. 28-day-old chicks inoculated with the isolate showed disease,and the isolate was recovered from the tissues of these chickens. The 1 041bp specific fragment were amplified by RT-PCR with sequence-specific primers based on IBDV VP3 gene. The VP3 gene shared 97.7%~98.2% nucleotide identities to very virulent IBDV,97.7%~95.2% nucleotide identities with classical strains from seqiemce analysis.

结果表明，该分离病毒无血凝性，在琼脂扩散试验中能与抗IBDV特异性血清出现1条清晰的白色沉淀线；人工感染28日龄雏鸡出现与临床一致的病变，并回收到病毒；应用针对IBDVVP3基因的特异性引物进行RT-PCR，能扩增到长度为1041bp的特异性目的片段；序列分析发现分离毒VP3基因与IBDV超强毒和经典毒株的核苷酸同源性分别为97.7%~98.2%和95.2%。

Our analysis shows that the canonical construction for ditransitive verbs in Chinese is the preverbal prepositional gei/ba/jiang construction.

通过研究，作者发现汉语双及物动词的典型结构是动词前给／把／将结构。

Opportunity and Spirit found unmistakable proof of Martian water: rippled sediments that were once at the bottom of a shallow sea, and rock that once was so water-soaked that "it had rotted," the journal said.

机遇和精神，发现无误的证据证明火星上的水：波及沉积物表示，曾经在底部的浅海域，与岩石曾经是那麼水渍说："它已腐烂，"华尔街日报称。

Here we show that regulated intramembrane proteolysis activates EpCAM as a mitogenic signal transducer in vitro and in vivo.

在本研究中，我们发现离体和在体条件下，受调节的膜内蛋白水解可激活EpCAM，使其成为有丝分裂信号转导物。

The protuberance phenomenon in shape of conic or cylinder was discovered for the first time.

发现了ZnO压敏陶瓷中的锥状或柱状"突起物"现象。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷