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Methods: TOCA was labeled with (superscript 99m)Tc using HYNIC as bifunctional chelator, EDDA and trieine as coligand. The nude mice bearing human small cell lung cancer underwent static whole body planar imaging after the injection of (superscript 99m)Tc-HYNIC-TOCA or (superscript 99m)Tc-P829. ROIs were drawn and the radioactivity ratios of target to non-target were calculated in every planar imaging. The dynamic biodistribution study was operated in Kunming mice and the percent uptake ratios of two imaging agents in different tissue at different time were measured.

以HYNIC为双功能螯合剂(bifunctional chelator， BFC)，乙二胺－N，N'-二乙酸和三甲基甘氨酸为协同配体进行TO-CA的(上标 99m)Tc标记；以(上标 99m)Tc-HYNIC-TOCA和(上标 99m)Tc-P829为显像剂，对荷人类小细胞肺癌裸鼠进行显像，通过感兴趣区技术进行半定量分析，计算并比较两种显像剂的靶/非靶比值；在昆明鼠体内进行动态生物学分布实验，测定并比较不同时点两种显像剂在各脏器的克组织百分摄取率。

The toxicity of As(superscript 3+) and As(superscript 3+)+Se(superscript 4+) to Elodea nuttalli was studied.

以伊乐藻为试验材料，研究砷、砷＋硒离子对伊乐藻抗氧化酶系统的影响。

Objective To establish a method for detection of CD4(superscript +) CD25(superscript +) forkhead box p3 (Foxp3)(superscript +) nature regulatory T cells in peripheral blood by flow cytometry and evaluate its significance in patients with systemic lupus erythematosus.

目的 探讨流式细胞术检测CD4 CD25叉头状转录因子(Foxp3)天然调节性T细胞的方法及其在系统性红斑狼疮患者外周血中改变的意义。

Nicotianamine synthase gene has an important function in the Fe-deficiency response of graminaceous monocots, and it catalyzes substance to nicotianamine which plays an important carrier in the internal transport of Fe(superscript 2+) and other divalent metal ions. Nicotianamine can bind with Fe(superscript 2+) to form Fe(superscript 2+)-NA complex and protect plants from toxicity in acidic soil.

烟酰胺合成酶基因在单子叶禾本科的缺铁胁迫应答反应中起着关键作用，它的催化产物烟酰胺是铁及其他二价金属离子在体内吸收和转运的重要载体，且能与Fe(上标 2+)结合形成Fe(上标 2+)-NA复合物，从而使植物在酸性土壤中免受铁毒害。

The result of acute toxicity of Cd(superscript 2+) on antioxidant enzymes showed that along with the rise of concentration of Cd(superscript 2+), the activity of superoxide dismutase, catalase, and guaiacol peroxidase were changed in O.chinensis injected with Cd(superscript 2+).

对Cd(上标 2+)急性染毒的中华稻蝗抗氧化酶活性变化研究表明，随着Cd(上标 2+)浓度的升高，超氧化物歧化酶、过氧化氢酶、谷胱甘肽过氧化物酶活性均发生改变。

With American head lettuce as tested material, the rectangular hydroponic mode with gas-charged static nutrient solution was adopted, 6 different formula treatments including NO3(superscript -):NH4(superscript +)=80:20, 70:30, 60:40, 50:50; NO3(superscript -) replaced by CO (NH2) 2 as well as CK were set up and each formula was prepared by using groundwater directly to study the effects of different substitution amounts of nitrate nitrogen on growth status, root activity and chlorophyll content of lettuce.

方法］以美国结球生菜为试材，采用充气式静止营养液矩形水培方式，设定NO3：NH4=80：20，70：30，60：40，50：50；CO(NH2)2代替NO3以及对照共计6种不同的配方处理，各配方直接利用地下水进行配制，研究硝态氮不同替代量对生菜生长状况、根系活力和叶绿素含量的影响。

In this study, it was observed that addition of vitamin C to oxidized low-density lipoprotein by cupric ions Cu(superscript 2+ could result in the formation of singlet oxygen (superscript 1O2 In experiments (superscript 1)O2 was detected by chemiluminescence method using a Cypridina luciferin analog, 2-methyl-6-(p-methoxyphenyl)-3, 7-dihydroimidazo [1, 2-a] pyrazin-3-one, as a selective and sensitive chemiluminescence probe.

以一种海萤荧光素类似物MCLA2-methyl-6-(p-methoxyphenyl)-3， 7-dihydroimidazo

The bacteria did not directly oxidate SO3(superscript 2-), and the oxidization of Fe(superscript 2+) by the bacteria seemed to be the key step if oxidation of SO3(superscript 2-).

在突变菌株与Fe(上标 2+)共存时，SO3(上标 2-)的氧化速率明显高于化学氧化，且以间接氧化为主，细菌对Fe(上标 2+)的氧化是反应过程的限制步骤。

To provide a theoretic reference for anti-adversity moriculture, we investigated the synergistic effects of H2O2 and Fe(superscript 2+), Cu(superscript 2+), Zn(superscript 2+) on free radicals damage and activities of protective enzymes in the leaf discs of mulberry in this paper.

研究了H2O2与Fe(上标 2+)等金属离子产生的自由基胁迫对桑树生理特性的影响，旨在为桑树的抗逆栽培提供理论参考。

According to the describing method of Maoxue Li et al, we first confirmed the C-banding of Leymus multicaulis is 2n=28=5CT+2CTI(superscript +)+2CT(superscript +)+2CT(subscript +)+1CTI(subscript +)+1C+1T+1TI, and the C-banding of Cichorium intybus L. cv. Puna is 2n=18=2CT+4CTI(subscript +)+1CT(subscript +)+1CT(superscript +)+1CT(subscript +)I(subscript +).

根据李懋学等（1991年）对C-分带的描述方法，首次确认多枝赖草染色体的C-分带为2n=28=5CT+2CTI+2CT+ICTI+ICTI+1C+1T+1TI，普那菊苣各染色体的C-分带为2n=18=2CT+4CTI+1CT+ICTI+1CTI。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。