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The fluorescence intensity of these chitosan derivatives increases and decreases with the different chromophoric group in the polymers\' long-chain. The fluorescence properties of these chitosan derivatives are also changed with the different pH, solvent and concentration

首次考察了分子量为104数量级的壳聚糖衍生物的荧光性能与其侧链上的生色团、助色团的关系，以及在不同浓度、不同酸度、不同溶剂中它们的荧光性能的变化情况来源：33ddABC论文网www.abclunwen.com

Among the enemy population, intra-species competition is fiercest for Coccinella septempunctata and weakest for E. plagiator. In terms of time, competition between P. japonica and C. septempunctata or Leis axyridis is relatively fierce. However, that between E. plagiator and P. japonica, C. septempunctata or L. axyridis is weaker.

在天敌种群中以七星瓢虫种内竞争最为激烈，麦蚜茧蜂的种内竞争最为缓和；龟纹瓢虫分别与七星瓢虫和异色瓢虫在时间维度上的竞争较为激烈，而麦蚜茧蜂分别与龟纹瓢虫、七星瓢虫和异色瓢虫的竞争比较缓和。

According to the international methods of pest risk analysis and characteristics of urban forestry in Beijing,a quantitative risk assessment system in Beijing for the main non-indigenous pests was proposed.This system was used to analyze three non-indigenous species, Dendroctonus valens,Hyphantria cunea and Apriona swainsoni. The results show that the risk of these three species in the Beijing area is 2.46, 2.30 and 2.02, all highly risky.

该文参照国际上有害生物风险分析方法，结合北京地区城市林业特点，提出北京地区重大外来有害生物风险量化评估体系，并应用该评价体系，进行了红脂大小蠹、美国白蛾、锈色粒肩天牛对北京地区的风险评价。3种有害生物的量化评估值分别为红脂大小蠹2.46、美国白蛾2.30和锈色粒肩天牛2.02，因此对北京地区而言，3种昆虫皆为具高度风险的森林有害生物。

Methods Five different ultraviolet absorption components were isolated from the filtrate of Botrytis cinerea isolate 7–3 culture. Of the five components, one showed strong inhibitory to Digitaria sanguinalis.

在前期薄层层析法、柱层析法和高效液相色谱法分析的基础上对灰葡萄孢诱变菌株BC7–3的代谢产物中具有除草活性的5个不同组分分别进行了液相色谱制备。

Immunocytochemical staining was used to identify sarcomeric actin and intercalated disc-like structure when the cells were cultured for additional 1 week, 2 or 3 weeks, respectively. RESULTS: Sarcomeric actin positive cells were observed in 1 week, 2 or 3 weeks after 5-aza treatment. Some cells stained positive for connexin43 at 1 week and 2 weeks after 5-aza treatment, with brown pellet located dispersively around nucleus.

结果： 5-aza处理后1周、2周、3周均可见横纹肌肌动蛋白染色阳性细胞。5-aza处理后1周及2周连结蛋白43在部分细胞上表达：呈核周散在分布的棕黄色颗粒，5-aza处理后3周连结蛋白43 在细胞密度大的区域呈核周聚集成线形分布的棕黄色颗粒，个别细胞间可见此结构，类似正常心肌的闰盘结构。

Part 2. Measurement of macular light sensitivity and FM 100-hue test in normal prese- nium and geratic people. The macular light sensitivity 、macular foveal light sensitivi- ty in 64 (82 eyes) and hue discrimination in 75 (100 eyes) normal presenium and geratic people were examined with macular threshold (white、red、blue and green color light) program of the Humphreh Field Analyzer and FM 100-hue test respectivity. The re- sults showed that the light sensitivity in four color light threshold was all declined with age. The mean error score square of each spectral region and whole spectral was increased with age, the loss of light sensitivity and hue discrmination was a linear correlated with age. The light sensitivity of the different field was compared, except blue color light threshold, the light sensitivity was decreased with the increasing of the eccentricity, white and red color light threshold in the inferior field showed lower sensitivity than that in the superior field.

二、老年前期及老年期正常人的黄斑阈值及FM100-色调试验检测采用Humphrey视野分析仪黄斑阈值程序和FM100-色调试验仪分别对82例（82眼）和75例（100眼）老年前期及老年期正常人进行了黄斑光敏度、黄斑中心凹光敏度及色调分辨力的测定，结果显示四种色光阈值的光敏度均随年龄增加而降低，FM100-色调试验各个色区及全色区错误记分方根随年龄增加而增高，光敏度及色调分辨力的降低与年龄呈线性相关；不同视野的光敏度比较，除蓝色光阈值外，光敏度均随视野偏心度的增加而减少，视野的上半部光敏度较下半部低；视野的鼻侧与颞侧及各象限的光敏度无显著差异。

Have a plant area of 6000 square meters, with four-color, two-color Roland printing presses, automatic die-cutting machine, automatic machine, automatic paper mounting machine, grinder, folder gluer, such as a set of printing equipment, in the design of the production the better film, plate skilled personnel, computer and automatic punching machines and other copy-plate equipment, able to exert the maximum effect of the printing.

拥有厂房面积达六千平方米，拥有四色、双色罗兰印刷机、自动模切机、自动过胶机、自动裱纸机、磨光机、糊盒机等一整套印刷设备，在设计制作菲林上更胜一筹，技术精湛的制版人员，电脑和自动拷贝冲片机等制版设备，能最大限度的发挥印刷的效果。

Have a plant area of 6000 square meters, with four-color, two-color Roland printing presses, automatic die-cutting machine, automatic machine, automatic paper mounting machine, grinder, folder gluer, such as a set of printing equipment, in the design of the production the better film, plate skilled personnel, computer and automatic punching machines and other copy-plate equipment, can play a maximum printing results.

拥有厂房面积达六千平方米，拥有四色、双色罗兰印刷机、自动模切机、自动过胶机、自动裱纸机、磨光机、糊盒机等一整套印刷设备，在设计制作菲林上更胜一筹，技术精湛的制版人员，电脑和自动拷贝冲片机等制版设备，能最大限度的发挥印刷的效果。

It was also found that the electron-donating groups in the 5-position of indoline moiety could stabilize the colored forms and then low the thermal decay date.

吲哚啉环上5位的取代基对螺噁嗪热消色过程也有影响。5位的给电子基团能稳定开环体，热消色速率降低，寿命延长。

All tumors were histologically high grade (6 grade III and 10 grade IV). Three tumors showed heterologous elements, 2 osseous, and 1 rhabdomyoblastic. More often scattered than diffuse, S-100 protein staining was noted in 11 of 16 tumors and variable collagen IV staining in 10 of the 16. Immunoreactivity for p53 protein was diffuse and strong in 7 of 11 tumors. Twelve patients died within 17 months to 3 years of diagnosis, 1 was lost to follow-up, 2 are very recent cases, and 2 patients are currently alive, 1 after 2 recurrences, and another with spinal leptomeningeal metastases.

所有病例在组织学上都是高级别（6例III级和10例IV级）。3例肿瘤含有其他成分：2例含骨和1例含 rhabdomyoblastic.S-100蛋白染色显色于16例肿瘤中的11例，IV型胶原染色显色于16例中的10例，这些染色通常分散而不弥散。11例肿瘤中7例的p53蛋白免疫反应弥散且强烈。12例病人死于确诊后的17个月至3年，1例随访失败，2例是最近的病例，还有2例现在还活着，其中1例复发，另1例发生脊髓脑膜转移。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。