核体

The baculovirus expression system, utilizing the strong polyhedrin gene promoter of the Autographa californica nuclear polyhedrosis virus , has become an important tool for protein production in the field of molecular biology.

由于核型多角体杆状病毒的多角体蛋白不是病毒复制必需的蛋白，利用转录多角体蛋白基因的强启动子可以高效表达外源蛋白，包括原核和真核基因编码的蛋白。

Polyhedrin and virion, which were isolated and purified from Agrotis setegum nuclear polyhedrosis virus, are administered to 3-instar Heliothis armigera larvae with Heliothis armigera nuclear polyhedrosis virus. Both polyhedrin and virion could increase mortality of H. armigera larvae, shorten half mortality time and decrease half mortality concentration.

对黄地老虎核型多角体病毒的多角体蛋白和病毒粒子组分进行分离纯化，分别与棉铃虫核型多角体病毒混合感染三龄棉铃虫幼虫，发现此二种组分均能够提高棉铃虫幼虫的死亡率，缩短半致死时间，降低半致死浓度。

In this paper, Attacus ricini nuclear polyhedrosis virus was studied. The molecular weight and pi of polyhedrin and structural polypeptides were determined by vertical slab SDS-PAGE and thin-layer isoelectrofocusing electrophoresis. The restriction pattern of ArNPV DNA was assayed by 5 restriction endonucleases.

本文较为系统的研究了蓖麻蚕核型多角体病毒(Attacus ricini nuclear polyhedrosis virus，简称ArNPV)形态特征和生化特性，并预测了多角体蛋白的二级结构，为开发利用蓖麻蚕核型多角体病毒这一生物资源提供了理论参考。

The metal ions of the dinuclear copper complex of [Cu_2_2Cl_4] are linked by two N~1,N~2 1,2,4-triazole bridges,and the central Cu ions have distorted trigonal bipyramid geometries. The central Cu ion of [CuL22]·H2O has a centrosymmetric and distorted tetragonal-octahedral geometry. The metal ions of the dinuclear manganese complex of [Mn_2L_2_2Cl_2(H_2O)_2] are bridged by two chlorine atoms, and the central Mn ions have distorted tetragonal-octahedral geometries. Part III.

配合物[Cu_2_2Cl_4]是通过配体L的1，2，4-三唑环上两个氮原子(N~1，N~2)桥联形成的双桥双核配合物，每个中心铜离子都具有畸变的三角双锥构型；配合物[CuL22]·H_2O的中心铜离子具有中心对称的畸变八面体构型；配合物[Mn2L2_2Cl_2(H_2O)2]是通过两个氯原子桥联形成的双桥双核配合物，每个中心锰离子都具有畸变的八面体构型。

The results showed that①the fos like immunoreactionwas increased in the rat frontal cortex,cingulate cortex,islands of Calleja and caudate putamen in the acute group;②the FLI was increased in the rats frontal cortex,mammillary nucleus,amygdaloid nucleus and caudate putamen in the chronic group;③...

结果显示：1一次给药后额叶皮质，扣带回，嗅结节岛，纹状体四个部位的免疫反应阳性细胞数显著增加；2长期给药组额叶皮质，乳头体核，杏仁核和纹状体四个部位的 C- FOS免疫反应阳性细胞数显著增加；3不同抗抑郁药作用的部位有差异。

In electron microscopy endothelial cell of capillary and mitochondrial was edematous obviously, the basement membranes were thickened. RGCs were vacuolated, chromatin of nucleus aggregated marginally decreased and densification. Some of RGCs were necrosis, nucleus were dissolved, mitochondria was edematous, the rough endoplasmic reticula decreased obviously.

电镜下视网膜毛细血管内皮细胞明显肿胀，胞体变圆，突向管腔，线粒体肿胀，空泡化，基底膜增厚，视网膜神经节细胞胞体变形，核明显固缩，核膜消失，胞浆空泡化，线粒体肿胀，细胞表面突起减少，多聚核糖体及粗面内质网显著减少。

The histone octamer may protect the wrapped DNA from interacting with other environmental factors such as transcription regulating proteins, thus the positioning of nucleosomes along DNA may play important roles in multiple cellular processes including DNA replication, transcription and damage-repair.

由于核小体结构中的DNA缠绕在组蛋白八聚体上，可能影响这些DNA与细胞内的其他蛋白相互作用，从而影响到DNA复制、转录等生物学过程，因此，核小体在基因组上的位置分布可能对基因组功能具有重要的调控作用。

However, the coarsened and less dispersive Ti〓Ni〓 precipitates do not affect the morphology of the R phase and provide the preferred nucleation sites for the martensite, but they prevent the martensite from its auto-catalytic nucleation and growth and, consequently, the martensite develops discontinuously in a clustering nature.

低弥散度的粗片状Ti〓Ni〓相不影响R相的形貌，而且为马氏体相变提供优先形核部位，同时又制约马氏体的自促发成核和生长，以致使马氏体呈群团状的区域式不连续发展。

In general, this malaria parasites in the mature or nearly mature erythrocytes, schizonts usually large, occurre in mature erythrocytes with more 20 merozoites most commonly arranged in mass.

两性配子体较大，均为长形，雄性配子体有驱核现象，并使寄主细胞膨胀变大；雌配子体较雄配子体长，有一定的包核现象。

Thecompounds were dispersed in the melted silver-based brazing filler metal inamorphous particles as nucleators of heterogeneous nucleation, so that made themelted filler metal form Ag and Cu solid solution as well as Cu solid solutioncontaining CePb or CeBi and that eliminated the negative effects caused by Pb orBi.

通常情况下它们以无定性态存在于银基钎料中，成为非均匀生核的生核剂，使银基钎料形成银固溶体+铜固溶体+含CePb或CeBi化合物的铜固溶体相，从而消除了 Pb或Bi的有害影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。