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In March, President Obama ended restrictions on the use of federal money for research using human embryonic stem cells.
VOA: special.2009.04.07
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That's why people are so excited about embryonic stem cells because in nature they become all the cells of the body.
这就是为什么胚胎干细胞如此让人激动,因为它的天然功能就是变成所有身体细胞
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stem cell researchers have found a way to get perfectly usable stem cells from fully grown human beings.
干细胞研究者已经找到了一种方法，
可以从成年人身上获取可用的干细胞。
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The research suggests that to grow, they have to be able to export the hormone into the main stem.
VOA: special.2009.10.13
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Different than the embryonic stem cell we talked about before, so it's an example of an adult stem cell.
和我们之前谈到的胚胎干细胞有所不同,因此这是个成人干细胞的例子
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But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.
VOA: special.2011.02.01
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All the goods of civilization, Hobbes tells us, stem from our ability to control pride.
霍布斯告诉我们说，文明之所以文明，源自于我们对追求荣誉之心的克制。
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The expert urges Afghan farmers to tell agriculture officials immediately if they suspect stem rust in their fields.
VOA: special.2009.08.18
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Embryonic stem cells can give rise to every cell type in the body.
能分化出人体中,各种类型的细胞。
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Last year,President Obama ended restrictions on the use of federal money for studies of human embryonic stem cells.
VOA: special.2010.11.02
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So the idea is, if you can take a cell... you can take a stem cell from your body
所以如果你能够取得一个细胞……如果你能够从你体内取得一个干细胞，
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The disease is a form of stem rust named for its discovery in Uganda ten years ago.
VOA: special.2009.08.18
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So the major controversy behind stem cell research, at least as far as I understand it,
干细胞研究背后的主要争议，就我的理解来说，
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Two new studies have investigated why fewer females,compared to males, study and work in the so called STEM subjects in the United States.
VOA: special.2010.04.01
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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。
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The soaptree yucca plant can make its stem grow longer to keep its leaves above the sand.
VOA: special.2010.01.04
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This is one of the very important areas that still is not completely understood in stem cell biology.
这是一个干细胞生物学领域的重要课题,至今仍未完全明确
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The new research shows that the buds on the side cannot export their auxin into the main stem because it is too full.
VOA: special.2009.10.13
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There's a lot of interest in obtaining stem cells from the blood of the umbilical cord on birth.
从出生时的脐带血中取得一些干细胞,也很有趣
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Doctor Kakarala says the cancer-fighting treatments known as chemotherapy do not control tumors containing cancer stem cells.
VOA: special.2010.06.01
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So we needed to come up with another source, a renewable source, so we turned our attention to embryonic stem cells.
因此，我们需要一种替代材料，一种可以再生的材料，我们注意到了胚胎干细胞胚胎干细胞。
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During an infusion, stem cells enter the body through a vein leading back to the heart.
VOA: special.2011.02.01
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This process is called self-renewal, so that's one important process of property stem cells, that they're capable of self-renewal.
这种过程称为自我更新,所以这是干细胞的一个重要性质,它们能够自我更新
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Stem cells from very early embryos are able to grow into any tissue in the body.
VOA: special.2009.04.07
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But from what I know, generally the more religious groups tend to be opposed to stem cell research,
但是一般来说，就我所知越是反对干细胞研究的人，
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The common or purple foxglove produces pretty flowers along a tall leafy stem called a spike.
VOA: special.2009.08.25
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This stem cell which is reproduced still has the potential to undergo asymmetric division but this one does not.
新生成的干细胞,仍然有潜能进行不对称分裂,但定向祖细胞就不行
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Stem cells have the ability to grow other cells, such as heart, nerve or brain cells.
VOA: special.2010.06.15
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The way we did this was to coax embryonic stem cells first to develop into the surface layer.
我们是这么做的,先诱导胚胎干细胞,发育成外胚层。
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Can you explain to us about stem cell research and why it's so controversial?
你能跟我们解释一下干细胞研究，
以及为什么这项研究会受到这么多的争议吗？
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