好研究的

Cephalomappa sinensis is a monotypic genus ever-green tree endemic to the calcareous mountainous region in southwest of Guangxi Zhuang Autonomous fresh branches are used as feeding stuff for cattle,horse,sheep,and can make them find the possibility of developing feed additive or medicine for livestock,the chemical constituents from this plant were chemical constituents of its roots had been reported in our earlier continuation of our investigation on the branches of Cephalomappa sinensis,a new norneolignan,named Ceplignan(1),was isolated from ethanol extract through column structure was elucidated on the basis of spectroscopic evidence.

肥牛木(或称肥牛树，Cephalomappa sinensis)为大戟科一单种属植物，为常绿乔木，其分布区狭窄，仅限于广西西南部石灰岩山地[1]。肥牛木为优良木本饲料树种，是牛、马和羊的好饲料，用该植物饲养牛，可使牛肥壮，故有肥牛木的名称[1]。研究其化学成分，目的在于探讨开发饲料添加剂或兽药的可能性。我们曾报道了肥牛木根的化学成分[2，3]，在对其枝条的进一步研究中，又分离得到一个新的降新木脂素，命名为肥牛木素。本文报道其分离方法和结构鉴定结果。

Now other country have many reports that Nephila clavipes、Araneus diadematus etc contain 11 kinds of silk protein gene, but not complete.

本研究分离蛛丝刚性弹性好的大腹园蛛主壶腹腺和鞭毛腺，提取总RNA，在国内外首次构建大腹园蛛主壶腹腺和鞭毛腺cDNA文库。

According to the above study result, the diversity of microorganisms population in the SUFR system is complex and the bio-community formed in the SUFR system is stable. The close relations between abundance of bacteria and nutrients were found. The correlation between heterotrophic bacteria and COD was 0.949. The correlation between organic phosphate bacteria and TP was 0.815. The correlation between nitrosobacteria and NH3-N was 0.909. The correlation between disnitrifier bacteria and TN was 0.653. These inneglectable great factors effecting on phosphorus-uptake and phosphorus-release of phosphorus accumulating organisms are the influent COD、the concentration of DO、the sludge retention time、the temperature. The diversity of organic phosphate bacteria population in the SUFR reactor was complex and there is no phosphate bacteria taking the absolute superiority in quantity. The near-native pure culture method powerfully complement the traditional pure culture technique and enrich culture technique. The sludgy bioactivity is very good in whole SUFR reactor. By the quality of being biochemistry, the anaerobic phase is higher than anoxic phase and the anoxic phase is higher than aerobic phase of SUFR.

通过以上试验内容研究发现，SUFR 系统中的微型动物种群较多，微生物生态系统稳定；系统中微生物的数量与营养盐的含量密切相关，其中总异养菌与COD的相关系数r 为0.949，有机磷细菌与TP 的相关系数r 为0.815，亚硝化菌与NH4+-N的相关系数r 为0.909，反硝化菌的数量和TN 的相关系数r 为0.653；污水生物除磷工艺中进水COD 的浓度、DO 浓度、泥龄的长短、温度都是影响聚磷菌释磷及吸磷效果的不可忽视的因素；SUFR 系统中的磷细菌呈现种群多样化的趋势，没有占绝对优势数量的磷细菌；微孔滤膜近自然培养法是对传统纯培养技术和富集培养技术的有力补充；整个SUFR 反应器系统中污泥的生物活性很好，就可生化性来讲，厌氧反应器大于缺氧反应器大于好氧反应器；按照动力学方程式求出的细胞生长动力学特征值和SUFR 脱氮除磷系统工艺的实测值结果基本吻合。

In order to improve its effect,by simulating natural enviroment and irradiating the material of FRP under water with strong ultraviolet ray for a long time,the strength change in protection and nonprotection conditions is contrasted and the weather resistance is analyzed.

纤维增强复合材料在土木工程中越来越得到广泛应用，为了更好地发挥其使用效果，通过模拟自然环境，将其材料在水下经长时间强紫外线照射，对比有保护和无保护情况下的强度变化，进行耐候性分析研究，结果表明有保护情况下强度保持率有了明显提高。

Thus we found that Chinese college faculty\'s working motivation is ordinally from the professional development, economic agent and environmental factor; the exertion of working enthusiasm of faculty members in self-assessing is between general and better; faculty wastage rate is usually low, the faculty team is in stable or super-stable state.

研究发现，中国高校教师积极性依次来自于职业发展、经济因素与环境因素的激励力量；教师自评工作积极性发挥程度介于一般与较好之间；教师流失率普遍较低，教师队伍进入稳定或超稳定状态。

Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4～15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.

本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究，并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究，从中分离得到19个化合物，利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物，分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外，其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷，并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力，其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型，在体外观察类叶升麻苷的保肝作用。

This article sums up and analyzes many clinical and experimental study which using biological toxin preparation such as phrynin, scorpion venom, snake venom, bee venom and cantharidin to prevent and cure primary carcinoma of liver, funds out that the biological therapeutics of using toxin to treat disease has good effect in hepatic carcinoma's prevention and cure.

1山东医学高专，2临沂市肝胆病医院山东临沂276002本文通过对生物毒素制剂蟾毒、蝎毒、蛇毒、蜂毒和斑蝥素防治原发性肝癌的临床和实验研究资料进行总结和分析，发现&以毒攻毒&生物疗法对防治肝癌有较好效果。

"This study shows that the levels of resveratrol found in cocoa and chocolate products is second to red wine among known sources of resveratrol and forms yet another important link between the antioxidants found in cocoa and dark chocolate to other foods," says David Stuart, PhD, Director of Natural Product Science at The Hershey Company who partnered with Planta Analytica to conduct this study.

&这项研究表明，白藜芦醇的各级中发现可可和巧克力产品的第二红葡萄酒中已知来源的白藜芦醇和各种形式的又一重要之间的联系中发现抗氧化剂的可可粉和黑巧克力的其他食品，说：&戴维斯图尔特博士主任天然产物科技在好时公司与谁合作，植物分析家进行这项研究。

These will be pored over by interview candidates hoping to ready themselves for a one-on-one with a university don.

这些将深入研究，希望通过面试的候选人准备好自己，一上了大学唐一。

A 50-year Porites lutea core from Nansha Islands (9°33′N, 112°54′E) was analyzed for δ〓O and ...

造礁珊瑚是研究热带海洋境变化的极好材料。

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。