联合作用的

In the first part,we use adjoint operator method and matrixrepresentation method to compute normal forms of higher order for nonlinear dynamicalsystems with Z2—symmetry and Z2—asymmetry.

在第二部分里，利用多尺度法、规范形理论、普适开折理论、Melnikov方法和Petrov方法分别研究了参数激励作用下非线性振子、参数激励与强迫激励联合作用下非线性振子的局部分岔、余维2退化分岔、余维3退化分岔和全局分岔。

The result showed that crude protein content in food residue could be increased by compound culture of microzyme and mildew ,and crude protein content rose with reaction time increasing.

结果表明：酵母菌和霉菌联合作用于食物垃圾可以提高其粗蛋白含量，且粗蛋白含量随反应时间的延长而增加；康宁木霉3.2774与发酵水解液废液酵母2.570联合作用时效果最好，反应48h后，食物垃圾样品的粗蛋白含量增加了5.09%，相对增量达34.56%，因此可以选择这2种菌种作为食物垃圾固态发酵生产微生物蛋白饲料的优选复合菌种。

Results The hela cells which transfected with HSV-TK and IL-12 gene was obviously changed in appearance after 24 hours which added GCV, but the normal control cells growthed prosperity. The survival rate of the hela cells which transfected with HSV-TK and IL-12 gene was fall-off with the plus of tile GCV. The killing effect of GCV for the hela cells transfected with HSV-TK and IL-12 gene was more strengthener than that for the normal cells.

结果 加入GCV后体外培养联合基因转染的Hela细胞，24h后细胞明显发生形态上改变，正常对照组细胞生长旺盛；随着GCV剂量的加大，转染联合基因的Hela细胞的存活率呈逐渐下降的趋势，GCV对转染细胞的杀伤作用较对正常细胞的杀伤作用明显增强。

Kangdai Ⅰ has protective function to the damaged neurons and astrocytes: Main results:(1) It has direct protective function to the damaged neurons. It can increase the activity and survival rate, decrease the mortality and the transudation rate of LDH in cultured medium and the strong positive cell count of NOS expression of injured neurons.(2) It has also directly protective function to the damaged astrocytes. It can increase the activity and survival rate and protein content in conditioned medium.(3) It can strengthen the ability of BDNF, GDNF, bFGF, HSP and IL-6expression in damaged astrocytes.(4) It can also strengthen obviously the expressions of NSE, bFGF-receptor and bc1-2, lower the expression of bax and caspase-3.(5) It can indirectly protect and restore the damaged neurons by astrocytes. Because the effect of ACMK (ACM interfered by Kangdai Ⅰ) is stronger than ACM+K (ACM associated with Kangdai Ⅰ).

抗呆Ⅰ号对受损的神经元和星形胶质细胞均具有保护作用：主要表现为：(1)对受损神经元具有直接的保护作用，可提高受损神经元的活性和存活率，降低细胞培养液LDH的漏出率、细胞死亡率和NOS染色强阳性细胞的表达量；(2)对受损的星形胶质细胞也有直接的保护作用，可提高其活性、存活率以及培养液蛋白质的含量；(3)能增强受损星形胶质细胞分泌BDNF、GDNF、bFGF、HSP和IL-6的能力；(4)可明显增强受损神经元对NSE、bFGF的受体和bc1-2的表达，降低受损神经元对bax和caspase-3的表达；(5)抗呆Ⅰ号可通过星形胶质细胞间接地保护和修复受损的神经元，因为在多数实验组中经抗呆Ⅰ号作用的ACM的作用远大于ACM与抗呆Ⅰ号联合应用的作用，统计学上具有显著性差异。

objective in order to exploit the natural resources of chinese herbs,the inhibitive effects of the compositions of28chinese herbs on the growth of8common bacteria in oral cavity were determined.methods sen-sitive test of these bacteria were carried out by mtt method.at the same time,chessboard dilution method was used for combined sensitive test.results the compositions of28chinese herbs can inhibit the growth of5bacteria in dif-ferent levels,but the effects on other3bacteria are not obvious.quercetin and usnic acid have better effects on5bacteria than other26herbs compositions,with mic0.03125～0.125mg/ml and0.0156～0.0625mg/ml.conclu-sion quercetin and usnic acid can inhibit the5bacteria growth more effectively than other26herbs compositions.

目的 测试28种中药有效成分抑制8种口腔常见致病菌的作用，为抗菌中药有效成分用于口腔感染性疾病的防治做一些探讨。方法选择28种有抗菌作用的中药的有效成分，采用噻唑蓝法对8种口腔常见致病菌作药物敏感实验，同时采用液体棋盘稀释法进行联合药敏实验。结果 28种中药有效成分对3种牙周细菌抑制作用不明显，对另5种口腔常见细菌有一定的抑制作用，其中松萝酸和槲皮素有较强的抑菌作用，mic值分别在0.0156～0.0625mg/ml和0.3125～0.125mg/ml之间。结论所选28种中药成份中，松萝酸和槲皮素具有较强的抑菌作用。

Objective: This experimental study is based on earlier animal and clinical experiment, drawn thinkings of combinations with two methods and pursued a synthesis method of high-efficiency, cheap and convenient calcium and exercise treatment. We adopt taking natural-clam's casing powder and preconcereted-intensity excises to intervene shape of osteoporosis in gelded rats, than we compare the indexes such as the biomechanics indexes of the right femur and the third lumbar vertebrae, the weight and uterus quotiety of rats before the experiment to these indexes after the experiment. We hope to find better and suitable way to prevent and treat the postmenopausal osteoporosis and offer reference for clinic.

目的 本实验的主要目的是在前期动物实验的基础上，引入两种方式联合干预的思维，立足于探求既高效又经济、方便的补钙剂加上与运动疗法相联合的方式，对切除雌性大鼠卵巢而复制成的骨质疏松症模型进行服用天然贝类蛤蜊壳粉，同时施以预定强度的运动刺激的方法，再通过试验前后大鼠体重、子宫指数的变化及大鼠股骨和椎体生物力学指标的对比变化进行分析，以期探索出防治绝经后骨质疏松症的更好的、更适宜于大众的手段；并为天然钙剂和运动联合作用防治PMOP提供参考。

EROD and ECOD are both phase I enzymes. There were complicated relations of time-effect and dose-effect between EROD activity and exposure of BaP, TBT or their mixture. Antagonistic interactions occurred after 25 days exposure to the mixure of BaP and TBT. It is fuzzy to merely use EROD activity as biomarker to assess PAHs or TBT pollution.

相解毒酶EROD活性与BaP、TBT及其混合物污染之间存在较为复杂的时间-效应与剂量-效应关系，而且在暴露25 d后，联合作用表现为拮抗作用，仅仅以EROD酶活性指标衡量环境中BaP、TBT或者二者的联合污染水平会出现失真现象。

Both niche differentiation and neutral process took effect in structuring the community in monsoon evergreen broadleaved forest were concluded.

关于群落物种多样性的维持机制，本研究提出&联合作用假说&，即生态位分化和中性过程的联合作用维持群落物种多样性。

In the development of stress theory, transactional model has become the dominant one; on the other hand, it has been an important trend to assess the role of multiple personality variables in stress process.

在压力理论发展中，交互作用模型已经成为占主导地位的压力理论，另一方面，探讨多人格变量的共同作用已经成为压力研究的一个重要趋势，因而在交互作用模型内探讨多种人格变量的联合作用在压力研究中具有重要的理论意义和实际意义。

Study shows that strengthening body resistance and archaeus herbs have many effects,such as improving and adjusting immunity function,protecting bone marrow,improving haematogenesis function,raising digest and absorb function,improving substance metabolism,preventing gene mutation,inhibiting tumor cell proliferation,inducing tumor cell differentiation or apoptosis,resisting tumor invasion and metastasis,inhibiting formation of tumor vessel and activity of telomerase,etc.It's possibly the result of synergistic effect by multi-pathway and multi-target.

研究表明，扶正培本药物具有增强和调节机体免疫功能、保护骨髓及提高机体造血机能、增加消化吸收功能，改善物质代谢、阻止基因突变、抑制肿瘤细胞增殖、诱导分化、促使肿瘤细胞凋亡、抗肿瘤侵袭与转移、抑制肿瘤血管形成及肿瘤细胞端粒酶活性等多种作用，其发挥的扶正作用可能是多途径、多靶点联合协同作用的结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。