The characteristic function of Notch in immunologic system is that it is the necessary factor for T lymphocyte commitment from multipotent stem cell to T lymphocyte.

在免疫系统中最具特征的功能在于它是T细胞由多能干细胞向T细胞定型过程中的必需因子。

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The life of a t cell, and all other blood cells, begins in the bone marrow as a hematopoietic stem cell (HSC).

T细胞和其他任何血细胞的生命史开始于骨髓中的造血干细胞(hsc)，造血干细胞具有生成血液中各种细胞的潜能。

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Conclusion a lot of hematopoietic cell component can be found in peripheral blood stem cell collection. T lymphocytes and NK cells are the main components.

结论外周血干细胞收集物成分复杂、多样，T淋巴细胞、NK细胞是干细胞收集物的主要成分。

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"But a baby who has a defect in those brain stem circuits that use serotonin can't do that when challenged and they go on to die."

VOA: standard.2010.02.08

Israel's acceptance of a relationship with God doesn't stem from mystical introspection, or philosophical speculation, Levenson says.

犹太人接受与上帝的关系并不来自于,神秘的内省，或者是出于投机心理，Levenson说。

耶鲁公开课 - 旧约导论课程节选

There are services now, we don't know yet how to get those stem cells out of cord blood and how to use them for therapies, but it's reasonable to think that we might know about this in 30 years.

现在已经有提供这样的服务了,我们现在还不知道如何从脐带血中,提取这些干细胞并用于治疗,但有理由相信,在未来的30年内我们会知道的

耶鲁公开课 - 生物医学工程探索课程节选

But the real problem behind employees' insecure practices, says Trend Micro's Perry, doesn't stem from any single trend.

FORBES: Accounting For Human Error

Penguins coach Dan Bylsma used his timeout, but couldn't stem the tide.

WSJ: Newcomers lift Rangers to 6-1 rout of Penguins

The resistance to regulatory interference doesn't stem from a particular political stance.

WSJ: The Weekend Interview with Travis Kalanick: The Transportation Trustbuster