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In heat shock protein gp96-peptide complexes induced tumor rejection model,antigen specific CD8T cells adoptively transffered into perforin knock out mice failed to proliferate and differentiate into CTLs whereas co-transfer of wide type NK cells rescued the clonal expansion and CTL differentiation of transferred CDST cells.These results suggested important immuno-modulatory roles of perforin and presumably different roles of perforin secreted by NK cells versus by CD8~+ CTLs.

例如，在热休克蛋白Gp96-肽复合体所诱导的抗肿瘤免疫应答中，穿孔素基因敲除小鼠中单独回输的野生型CD8T细胞不能产生有效的抗肿瘤免疫应答，而同时回输野生型NK细胞能够恢复CTL应答。

Although angiogenic roles of hypoxia-inducible factors are well known, the roles of PHDs in the ascular system remain to be established.

HIF在血管生成中的作用已经明确，但是PHDs在血管系统中的作用尚无报道。

Bilirubinic decomposition product has more powerful antioxidation than vitamin E;dissociative ferrum also plays roles on harmful product such as hydroxy radical and superoxide anion etc;As an important signal molecules,CO play significant roles on neuron information transfer and vascular tone regulation;people pay attention to HO,which is the main enzymatic system producting endogenous CO increasingly.

其中胆绿素的分解产物具有较维生素E更强的抗氧化作用；Fe~(2+)参与催化生成有害的活性氧代谢物，如羟自由基，超氧阴离子等；CO作为一种气体信使分子，在神经元信息传递和血管紧张度调节中起重要作用，HO作为产生内源性CO的主要酶系统日益受到关注。

According to the life form of species and their roles in communities, 6 species groups are used to do ordination analysis and environmental interpretation. The result suggests that:①Despite the strong man-made disturbance at lower altitude sites, the number and character of evergreen species show an change along the altitude gradient.②The rare and endangered species concentrated at two sectors along altitude gradient, corresponding to the upper and lower borders of the mountain mixed forest belt of evergreen and deciduous broad-leaved species.③The pioneer tree species concentrated on the middle and upper positions at lower elevation.④The deciduous accompany tree species show a great diversity on middle and lower position at middle and higher elevation.⑤Coniferous species differentiate along elevation and local topographical gradient.⑥Deciduous species in Quercus, Castanea, Fagus, Carpinus genus as well as coniferous species play primary community-constructing roles at different topographical position at Dalaoling region.

根据物种生活型及其在植物群落中的地位，分6个种组进行排序和环境解释，表明：①尽管低海拔地段受到强烈人为干扰，常绿种类仍显示了数量和性质沿海拔梯度的变化；②珍稀物种在海拔梯度上形成两个相对集中的区段，大致对应于山地常绿落叶阔叶混交林带的上下边缘；③先锋树种在中低海拔的中上坡位富集；④在中、高海拔的中低坡位，落叶的乔木伴生种显示了极大的多样性；⑤为数不多的针叶树种在海拔和局部地形梯度上也有明确分异；⑥它们和落叶的栎、栗、水青冈、鹅耳枥属物种在大老岭地区不同地形部位的植被中起着主要的建群作用。

These roles are divided into three categories: information, interpersonal and decisional roles.

这些作用分成三个范畴：信息人与人之间的和决定的作用。

These roles are divided into three categories: information,interpersonal and decisional roles.

这些角色可分为三类：信息，人际与决策。

Decisional roles is managerial roles that revolve around making choices.

决策制定角色是为组织做决定的管理角色。

Of course,the basisfor international cooperation is still the power of a nation.Coordination of nationalinterests by IOs is only a kind of non-compulsory action based upon free will,and itcan only take effects within its limits.And that is the reason IOs play active roles ineconomic,social,and other"low politics"issues,while their roles are restricted inmilitary,security,and other"high politics"issues.

当然，国际合作的基础仍然是国家实力，国际组织中国家利益的协调基本上只是一种自愿基础上的非强制行为，只能在一定范围内发挥功效，这就是国际组织在那些未涉及到国家根本利益的经济、社会等&低级政治&问题上表现非常活跃，而在传统的政治、军事安全等&高级政治&问题上受到更多限制的根源。

Results indicated the following: When selecting sites, location or transportation time was the most important factor, followed by the organization's professional resources or personal professional interests. After entering the sites, interns needed to define their roles as the placement position could be experienced as ambiguous, conflictual, powerless, alienating, and even nonexisting. Internship experience allowed interns to better understand the substance and ecological environment of the counseling psychology profession, as well as the roles and functions of counseling psychologists. These experiences have significant impact on the career development of interns.

研究结果发现：实习心理师选择实习机构时，首要考量地点或交通时间的因素，在优先考量此项因素后，机构的专业资源或个人的专业兴趣依序为两项最重要的影响因素；实习心理师在进到实习场域时有不同角色与位置的体会，包括：虽有位置，却是一个「不容易的位置」，其内涵含括角色位置的模糊、冲突、弱势、以及疏离、以及「没有位置」的位置；驻地实习经验让实习心理师更清楚谘商辅导的内涵、环境与生态，也更了解助人工作者的样貌、角色与处境，也因为这样的看清，对他们未来的生涯产生相当关键的影响。

In addition to the roles in ontogenic physiology, researches on the area of miRNA phylogenetic conservation and diversity suggested that miRNAs play important roles in animal evolution through driving phenotypic variations in development.

然而，除了在个体发生过程中的重要功能外，越来越多的研究表明，miRNA在系统发生中也扮演着关键的角色。

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。