放射性

Methods From Oct.2002to Oct2003,with the system of MICK200-TPV radiotive seeds implantation,The 125 I seeds were implanted into15patients with Pancreatic Carcinoma.The number of seed were18～45.The activity of per seed was0.45～0.7mCi.The peˉripheral radiation total dose was60～90Gy7patients were superadded radiotherapy（the doses was30-35Gy）.

自2002年10月～2003年10月，利用MICK200-TPV放射性粒子植入系统，对15例胰腺癌病人植入 125 I粒子，植入粒子18～45颗，每颗粒子活度0.45～0.7mCi，病灶周边剂量60～90Gy.5例植入粒子后补充外放疗30～35Gy。

Results showed that shoot biomass of H. annuus was significantly higher than that of R. acetosa and R. hastatus; among three plant species, 134Cs specific activity in shoots was the highest in H. annuus after 50 d-treatment, however after 70 d-treatment, that in R. acetosa was the highest. Bioaccumulation ratio reached 1.5, 1.4 and 1.3 in R. acetosa, R. hastatus and H. annuus after 70 d-treatment, and the former two plants kept with trend of continuously increasing. Three plants were resistant to 134Cs contaminated soil and capable of translocating 134Cs from soil to plants. Among them, H. annuus removed greatest 134Cs amount in the aboveground part during the experiment period, and R. acetosa, R.

结果表明，向日葵地上部生物量显著高于酸模和戟叶酸模；处理50d时，向日葵地上部134Cs比活度在3种植物中达到最高，而在处理70d时，酸模地上部134Cs的比活度达到最高；处理70d时，酸模、戟叶酸模和向日葵对134Cs的富集系数均大于1，分别达到1.5、1.4和1.3，且前2种植物继续保持快速上升的趋势。3种植物对铯污染土壤具有一定的忍耐性，并具有较强的从土壤向植物转移铯的能力；在本实验期内（70d）向日葵对土壤中放射性铯的剔除能力最强，而酸模和戟叶酸模则具有更强的铯转移能力。

Natural surface water supplies generally carry little threat of human radiation contamination because radon volatilizes into the atmosphere.

天然的地上水供应一般带有极少的对人类有危险的放射性污染物。

Its sensors are sensitive enough to detect radioactivity that wafts halfway around the globe.

这些探测器的灵敏度相当高，完全可以探测到随风飘散至世界各地的放射性颗粒。

A strange manuscript found inside and the unusually age-worn chest coupled with its noticeably unique design prompted them to conduct a radiocarbon test of the timber with which the chest was made.

结果发现里面有一份手稿，而箱子实在很古老，用来制作箱子的木材也十分奇特，于是决定用放射性碳来测算它的年代。

Equipment ability: imported portable testing equipments, 1027-radon detector, CO infrared analyzer, cp 3800, TSP-large flow PM10 sampler, UV8500 double beam UV-visible spectrophotometer, air sampling device, laser dust particle counter, hot-anemometer, air particle counter, Stone and other radioactive detector.

设备能力：测氡仪、CO红外分析仪、气相色谱仪、TSP-PM10大流量采样器、双光束紫外可见分光光度计、大气采样器、浮游微生物采样器、激光尘埃粒子计数器、热球风速计、空气粒子计数器、石材放射性检测仪等。

Periodic Table Ⅶ B family silver or gray-black powder bulk solid metal transition element, atomic number Z = 35, the original of the amount of 186,207, the chemical symbol FRe, there are two natural isotopes, stable 18575Re and radioactive 18775Re.

元素周期表中ⅦB族银白色的块状或灰黑色粉末状固体金属过渡元素，原子序数Z＝35，原了量186207，化学符号FRe，天然同位素有两种，稳定的18575Re和放射性的18775Re。

"This is a major breakthrough for eye cancer patients who are treated with radiation therapy and commonly deelop radiation retinopathy," said Paul T.

&接受放疗的眼癌患者往往发展成放射性视网膜病变，该研究结果对他们而言不啻是一项重大突破，&该研究的主要研究人员暨纽约眼耳鼻喉科医院眼部肿瘤服务中心主任Paul T。

Law of cell multiplication 3）relationship between molecular structure and function.

放射性核素示踪技术的基本类型及应用：1）研究物质代谢的体内与转化的规律；2）研究细胞增殖的规律；3）研究物质分子结构与功能关系

The size of these molecules is reduced to the antigen-binding part of the antibody, and they contain the variable domains of the heavy and light chain connected via a flexible linker.

因此S.FV成为将药物、毒素、放射性毒素导向肿瘤的很有价值的分子，在治疗和诊断试剂的发展上具有巨大的潜力。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。