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Objective The origin and the nature of the Hodgkin and Reed-Sternberg cell of Hodgkins lymphoma has been attracting a lot of medical researchers engaged in studying it,for its character by scattered large atypical cells residing in a complex admixture of inflammatory cells.Great improvement has been made since a new method of isolation of single H/RS cells from a frozen section had been set up by KUppers in 1994,and many studies have approved of the B-cell derivation of H/RS cell.lt has been reported that H/R-S cells might partly be originated from B-cell in our research before,but at the same time,we also found that only 18.8% of H/RS cells express CD20,31.3% of immunoglobulin heavy chain rearrangement have been revealed.

目的 霍奇金淋巴瘤(Hodgkins lymphoma，HL)由于它的恶性肿瘤细胞—H／RS细胞一般只占肿瘤组织的极少部分(不到1％)，且散在分布在背景细胞间，因此对于H／RS细胞的来源和性质研究一直是人们探索的目标。1994年德国科隆大学Kūppers等发展了一种从冰冻组织切片上用显微操作仪挑取单个H／RS细胞的显微切割方法进行H／RS细胞基因分析后，人们对H／RS细胞来源的研究有了突破性的进展，多数支持B细胞来源。

Dr. Hoffman says researchers must now study how best to employ this medical intervention in culturally sensitive ways.

Hoffman 医生说研究者现在必须研究以文化敏感的方式更好的利用这种医学干预措施。

Multitudes of domestic and abroad researchers made a lot of study on the humoral effect of CSFvaccine and hold the same result that the pigs immunized by Hog cholera lapinized virus vaccine canproduce neutralizing antibodies and provide a complete protection for CSF.

众多国内外学者对猪瘟疫苗的体液免疫效果做了大量的研究，均认为我国的猪瘟兔化弱毒苗能够刺激机体产生中和抗体，对猪瘟病毒攻击完全保护。

International collaborators include researchers from the Tokyo Institute of Technology and Hokkaido University.

国际合作者包括从技术和北海道大学东京工业大学的研究人员。

Indicated by many other researchers, may be related to the Holocene Optimum.

许多早期研究揭示的黑潮在7.5-7kaB.P的加强可能与全新世大暖期有关。

Recently, many researchers argued that the Holomorphic function on the unit disc and the unit ball belongs to the sufficient and necessary conditions of Bloch space β.

目前，国内外许多分析数学的研究者们已证明了单位园上及单位球上的一个全纯函数属于Bloch空间β的充要条件。

That is important , for when a scientist discovers a new species , the original specimen or holotype on which his description is based has to be deposited in a museum , so that other researchers can examine it .

这一研究的意义就在于当科学家发现一个新物种时，做出成果的原化石即使必须被保存在博物馆里，也不碍着其他研究人员继续研究。

The researchers first discovered the mutation in two Israeli Holstein bulls, one of them, named Goliath.

研究者们首次在两头以色列黑白花牛体内发现这一变种基因，其中一头名叫歌里亚。

A homing pigeon's natural solar and magnetic compasses are often less important than its knowledge of human transport routes, according to researchers at Oxford University, UK.

英国牛津大学研究者的调查表明，对于信鸽而言，自然界的指南针（来自太阳能和磁场方面的）经常不如它们掌握的人类交通路线知识更重要。

The DNA of a 40,000-year-old pinkie points to a new hominid species, German researchers say.

一个40，000的DNA岁提高到一个新人种小指分，德国研究人员说。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。