放射

Objective To investigate the feasibility of individual radiotherapy for patients with nasopharyngeal carcinoma of high radiation-sensitivity via caparison of long-term effect, toxicities between individual and conventional radiotherapy.

目的 比较放射敏感性鼻咽癌个体化放射治疗与常规放射治疗的长期疗效和毒副作用，以评估降低照射剂量和同期加量照射治疗放射敏感性NPC的可行性。

The radiotherapy operators average dose is high than radiodiagnosis operators about 68.1%, the technicians and maintainers' average dose is high than doctors and nurses' in radiotherapy about 93.3%.

放射治疗工作人员个人剂量平均值高出放射诊断工作人员个人剂量平均值68.1%，放射治疗中技术员及维修人员个人剂量平均值高于放射治疗医护人员个人剂量平均值93.3%。

Based on a quantitative analysis of radiolarian in 80 surface-sediment samples from the northern area of Okinawa Trough, this paper reported the species composition and faunal assemblages characteristic of radiolarian, expounded the distribution pattern of radiolarian abundance and diversity in surface sediments from this area. In this paper, a preliminary study on the relation of the distribution and abundance of radiolarian to environmental factors, such as chemical and physical properties of the overlying masses (sea-surface temperature, salinity, nutrients and primary productivity) and the type and composition of sea-bed sediments was made. The radiolarian data was evaluated using a Q-mode factor analysis to identify different faunal assemblages and their geographic distributions, then the relationship between radiolarian assemblages and distribution of water masses, hydrographic boundaries such as frontal systems was analyzed. A new radiolarian-based transfer function to estimate mean-annual sea surface temperature and seasonal range were examined to test its success in the study area.

本文对冲绳海槽北部80个表层沉积样品中的放射虫进行了系统鉴定和定量统计，研究了放射虫的种类组成与类群特征以及其丰度和分异度的分布；分析了海水温度、盐度、营养盐以及沉积物类型、成分等环境因素对放射虫分布的影响；采用Q-型因子分析，求得放射虫的属种和组合分布特征，探讨了放射虫组合与不同水团、海洋水文结构之间的关系；并对Pisias（1997）建立的估计表层海水年平均温度和其变化范围的放射虫转换函数在研究区的适用性做了检验。

The levels of SOD and CAT significantly increased and MDA decreased in bifidobacterium group compared to radition damage group.Electronic microgragh of spine neurocyte and neurogliocyte showed that cytoplasm,cytoblast and plastiosome were significantly engorged ,and neurogliocyte apoptosised in earlier period. TLR2mRNA increased in C group compared to B group by RT-PCR. Cytochrome C in kidney increased in C group compared to B group, but bcl-2,NF-Кb decreased. Conclusions : Enteroclysm is better compared to intragastric administration.

双歧杆菌处理组肝组织中SOD和CAT水平明显高于放射损伤组(P.01)，同时MDA明显低于放射损伤组(P.01)；电镜结果显示：放射损伤组与双歧处理组的细胞浆、细胞核和线粒体均明显肿胀，双歧处理组同时具有早期凋亡现象；RT-PCR结果显示：双歧处理组TLR2mRNA的表达明显高于放射损伤组；免疫组化结果显示，双歧处理组Cytochrome C的表达明显优于放射损伤组，而NF-кBp65和bcl-2则相反。

The unit of radioreaction in ethmoidal sinus was ethmoidal cell. Several ethmoidal sinus cells were fused to patch in severe cases. The radioreactions in ethmoidal sinus, maxillary sinus and sphenoidal sinus were seen within three months, after three months and after one year respectively. And nasal sinus radioreactions of most cases were not absorbed spontaneously after one year. When the two kinds of radiotherapies were equal in dosing level, there was no obvious difference between them in respect to the radioreaction of accessory sinus, but when the dosing level was above 3182GBq, the radioreaction of accessory sinus was remarkably increased, compared with those caused by lower-dose radiotherapies.

筛窦放射反应以筛窦小房为单位，重者也可以多个小房融合成片状；筛窦的放射反应在放疗后3个月内即可出现，上颌窦常在3个月以后出现放射反应，而蝶窦一般在放疗后1年以后才出现；大多数病例副鼻窦放射反应在1年以后难以自动吸收、消退；两种方法放疗剂量相同时所致副鼻窦放射反应无明显差别，但放疗剂量在3182 GBq以上时所致副鼻窦放射反应较其它放疗剂量时明显增高。

The specimen was preliminary coated with carbon of 10-20 nm in thickness, then sputtered with gold of various thickness according to its shape and surface texture: a gold film of 60-80 nm in thickness for bell-jar or tower-type radiolarites, 80-140 nm for globiferous radiolarites with spines and 140-200 nm for globiferous radiolarites.

在放射虫化石表面先蒸镀一层10-20 nm厚的碳膜，然后根据放射虫化石的形态和表面结构的不同，溅射厚度不同的金膜；钟罩形、塔形放射虫化石的金膜厚度在60-80 nm，带刺的球形放射虫化石的金膜厚度在80-140 nm，球形放射虫化石的金膜厚度在140-200 nm。

For the effect of surface oxidation on emissivity:(1) most oxidized samples have higher emissivity than unoxidized samples, except AL 2024 and AL 7005. The exception is due to roughened surface caused by the onset of melt and the change of surface color at high heating temperature.

铝合金有氧化与无氧化对放射率的影响：(1)大部份铝合金有氧化的放射率皆大於无氧化的放射率，除了AL 2024与AL 7005，因为熔化造成表面粗糙度增加及高温加热时表面色泽的改变导致无氧化的放射率大於有氧化的放射率。

Overall, emissivity of both oxidized and unoxidized samples increases with increasing temperature;(2) emissivity of unoxidized sample doesn t change with time. However, emissivity of oxidized sample increases due to the growing oxide layer with time;(3) a stronger effect of alloy composition is evident for oxidized samples.

整体而言，有氧化与无氧化之放射率皆随著加热温度增加而上升；(2)铝合金於开放环境之放射率随加热时间增长而明显上升，但在真空腔体内之铝合金其放射率却不随加热时间增长而改变，因为氧化层会随著时间增加而成长进而造成表面放射率上升；(3)合金成份对放射率的影响在氧化下比无氧化呈现显著的差异。

Medical radiobiology is a very important basic disciplines of medicine, radiobiology and clinical radiation injury, including the basic elements of their studies to molecular biology, pathology, Medical genetics, biochemistry, radiation health studies.

医学放射生物学是放射医学的一门重要的基础学科，包括放射生物学和放射损伤临床学的基本内容，其先修课程为分子生物学、病理学、医学遗传学、生物化学、放射卫生学等。

The journal publishes research in radiation oncology and the related specialties of radiobiology, cancer biology, and medical physics, focusing on investigational aspects of clinical and basic research related to radiotherapy; reports on translational research, i.e. laboratory observations with significant implications for clinical radiotherapy and clinical studies that indicate new approaches for basic research; as well as molecular radiobiology and clinical trials.

杂志刊载有关放射肿瘤学和相关专业，包括放射生物学，肿瘤生物学，和医学物理学的研究，主要聚焦于有关放射治疗的临床和基础研究；有关移植研究等，临床放射治疗的重要应用的实验观察和用于说明新方法在基础研究中的作用的临床研究；以及分子放射生物学和临床试验。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。