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全部话题 - 话题: stems
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t****t
发帖数: 45
1
Job Title: Postdoctoral Position in Biomaterials, Stem Cells, and Tissue
Regeneration
Application Deadline: Open Until Filled
Job Description
Description:
The Department of Biomedical Engineering at the University of Minnesota
currently has an opening for a post-doctoral fellow to conduct studies in
the area of biomaterials and tissue regeneration. The project involves
materials engineering on the molecular level, scaffold fabrication, and stem
cells.
Qualifications:
Candidates must have a Ph.D.... 阅读全帖
c*****t
发帖数: 1084
2
generally speaking progenitor cells are dervied from stem cells. the fate of
progenitor cells are more determined than stem cells and as a consequence they
can only differetiated into a few cell types. while stem cells have much
more potential to differentiate into various cells and organs. it's all about
potential.
j******g
发帖数: 171
3
Pluripotency and Totipoteny has similar meaning if not the same, i.e.
differentiation potential of all lineages but not SC of all different cell
types. But some ppl prefer to use Totipotency for ESC.
As I mentioned before, some of the adult stem cells are NOT true stem cells,
coz they only have limited self-renewal ability and differentiation potential.
So it's probably more approtiate to call them progenitor cells. Most time the
Sci would like to blow they find xxx type of stem cells, however,
a****d
发帖数: 1919
4
来自主题: Biology版 - Stem-cell furore erupts
http://www.nature.com/news/2010/100629/full/466017a.html
Stem-cell furore erupts
Data analysis ignites public row.
Alison Abbott
Long-rumbling hostilities between stem-cell researchers in Germany exploded
into a blazing public row last week, after Nature published a critical
reanalysis of data from a high-profile 2008 article.
The researchers behind the original work1, led by Thomas Skutella of the
University of Tübingen, reported using cells from adult human testes to
create pluripotent stem ce
H*****e
发帖数: 120
5
来自主题: Biology版 - Harvard stem cell paper retracted
Finally!
Amy is a star for long time. But almost like a joke although she and her
supporters fighted hard. Many years ago, she wrote a Cell review saying no
transdifferentiation. A few weeks later, there were 2 science paper did
transdifferentiation. When Cell launched Stem Cell, she was in the editor
board then she was elected for the senior post position in stem cell
association. How many AP could get this kind of treatment? I guess she
must make a big mistake in it this time.
Another ri... 阅读全帖
w**********9
发帖数: 242
6
来自主题: Biology版 - Harvard stem cell paper retracted
Not in the field, but quite interested in knowing some basics
1), when we call stem cell, it means they have the ability to differentiate
multiple cell types. Well, as we know that cancers are monoclonal. It is
very very rare to find multiple types of cancers in the lungs or any organ
at the same time. So, how should I conceive the concept of "cancer" stem
cell ?
2), I do not understand what this means "every cell can act like lung stem
cells excepted those in the end differientation". As I can ... 阅读全帖
r***e
发帖数: 2539
7
来自主题: Biology版 - 再次请教cancer stem cell
上次和大家讨论cancer stem cell 或者cancer initiating cell的问题,受益匪浅。当
时我认为primary tumor中可能存在一小部分的CSC,但是通常用的limited dilution在
免疫缺陷老鼠中长瘤的的方法说服力不强。当时我举例说established cancer cell li
ne比如说HELA,做transplantation的话,也能看到类似的结果,而HELA细胞里难道也有
cancer stem cell吗?今天看到几篇文章,竟然就是从细胞株中分离CSC,他们的说法是
"An alternative approach for isolating stem cell populations is through enri
chment of side population (SP) cells, SP cells are identified by the capacit
y to efflux Hoechst dye",就是说这些细胞能通过这个机制获得drung resistance。
http://cancerres.aac... 阅读全帖
p******d
发帖数: 3737
8
来自主题: Biology版 - 再次请教cancer stem cell
I guess these are two different concepts. CSC is to discuss if there are
some unique cells in the tumor that can self-renewal and give rise to
other tumor cells. The question you raised here is about the cell origin
of tumor, which is related with CSC, however not the same concept.Take a
look at this pape:
Crypt stem cells as the cells-of-origin of intestinal cancer.
Barker N, Ridgway RA, van Es JH, van de Wetering M, Begthel H, van den
Born M, Danenberg E, Clarke AR, Sansom OJ, Clevers H.
Some ... 阅读全帖
H*****e
发帖数: 120
9
I was asked a question whether it is meaningful to search the cancer origin
of lung cancer in kras model.
Actually, I found that I have no answer after taking more thought about it
and why I am doing it. So I open it for more discussion:
The promoter driving Kras is SP-C, active in both clara and type II cells.
I get myself into it because of Carla's finding on the stem cells. Since I
could not find the evidence to support stem cells, I then asked myself which
cell can form cancer. Obviously... 阅读全帖
t****t
发帖数: 45
10
Job Title: Postdoctoral Position in Biomaterials, Stem Cells, and Tissue
Regeneration
Application Deadline: Open Until Filled
Job Description
Description:
The Department of Biomedical Engineering at the University of Minnesota
currently has an opening for a post-doctoral fellow to conduct studies in
the area of biomaterials and tissue regeneration. The project involves
materials engineering on the molecular level, scaffold fabrication, and stem
cells.
Qualifications:
Candidates must have a Ph.D.... 阅读全帖
f***4
发帖数: 886
11
高手们近来讨论一下体内cancer stem cell
究竟体内存在cancer stem cell吗?
如果存在的话,是不是如果有突变环境情况下,他们就能产生cancer
怎么证明某类细胞可能是cancer stem cell
纯外行,低水平问题。见谅。
y******8
发帖数: 1764
12
来自主题: Biology版 - 为什么STEM法案不包括生物
说生物不属于Science纯粹是瞎扯。这里面共和党的政治考虑很简单。
1. STEM法案包括的专业基本上都是可以产业化很高的,这部分在美国大部分属于私营
的business, 受益者属于共和党的票源。
生物大部分还是在做研究,靠NIH等政府funding吃饭,这部分属于民主党的铁票。至于
医学那部分,现在整个美国医疗体系有国有化的趋势,而且不可逆转,那时所有医疗行
业都是靠政府吃饭,全都会是民主党的。
2. 从收入上来看,STEM法案包括的专业很容易就是两个人年收入250+k,这个属于共和
党要拉拢的范畴。至于生物的,大部分两个人加起来还是少于100k吧,这个属于民主党
拉拢的群类。医生方面,如果是拿签证的住院医,两个人收入也远小于250k。
生医类的人数上远超过现在STEM法案专业的总和。如果共和党的法案包括生医类,不是
办起石头砸自己的脚吗?
所以大家还是别骂共和党了。人家包括生医类就奇怪了。
民主党应该为生医类作主的。
l********k
发帖数: 14844
13
来自主题: Biology版 - 生物算STEM?!
http://www.ice.gov/sevis/stemlist.htm
http://www.ice.gov/doclib/sevis/pdf/stem-list.pdf
不过这个STEM和绿卡那个STEM是一回事么?
i****g
发帖数: 3896
14
来自主题: Biology版 - 邓宏魁又发一篇Cell Stem Cell
这篇是关于胚胎干细胞定向分化的。
http://www.cell.com/cell-stem-cell/abstract/S1934-5909(13)00272
Directed Differentiation of Human Embryonic Stem Cells into Thymic
Epithelial Progenitor-like Cells Reconstitutes the Thymic Microenvironment
In Vivo
6月研究iPS机制的Cell封面文章,7月4个小分子化合物诱导iPS的Science文章,刚到8月
又有Cell Stem Cell,今年集中爆发了啊.
s******h
发帖数: 23
15
http://www.bbc.com/news/health-26516458
A Japanese scientist behind a seemingly groundbreaking stem cell study says
the findings should be withdrawn amid doubts over its quality.
It was reported in January that dipping cells in acid could cheaply and
quickly convert them into stem cells.
But questions were raised about the images used in the scientific report and
other research groups have failed to reproduce the results.
Author Prof Teruhiko Wakayama said: "It is no longer clear what is right."... 阅读全帖
z*****0
发帖数: 4
16
求审稿机会-Breast/Prostate cancer, stem cell, cancer stem cell, gene
expression regulation
希望牛人推荐一些审稿机会! 小弟已经审过一些小杂志,包括Plos One. 帮老板审过
SC, CSC, NCB. 谢谢!
p*******y
发帖数: 133
17
总觉得将来十年stem cell技术会有长足发展,或许存cord blood是明智的。
不过最近随便翻了些信息,好像现阶段用自身cord blood能治愈的病不太多,用到的几
率是几千分之一。 而且最近stem cell的研究好像用体细胞可以转换成stem cell. 如
果这样的话,cord blood是不是将来就没什么特殊用处了?
还有如果有多个小孩,是不是每一个都要存呀?
多谢指教
z****u
发帖数: 1007
18
来自主题: Biology版 - 关于stem cell marker的筛选的设想
经典的干细胞理论模式和定义基本都是来源于HSC的研究,单个HSC以一种hierachical
的方式逐级重建整个H-lineage 。也由此self-renewal,multipotential 成为干细胞的
定义。
但实际上别的organ的干细胞并非如此。self-renewal是当然的。可multipotential 这
可真未必了。unipotential的就不能叫stem cell? 我认为这个定义需要修改。实际上
在现在很多stem cell研究里multipotential已不再是评价指标之一了,尤其在lineage
tracing 技术出现之后。有意思的是,好像HSC目前好像没人以lineage tracing的方
式去做过研究吧。我对HSC知道不多.
关于hierachy, 可能只有HSC被了解得很清楚。别的tissue specific stem cell是否也
有这样的hierachy? 我自己感兴趣的是transit amplifying cell (TA cell). 在mouse
incisor里面可以有很明确的TA cell population .可对于别... 阅读全帖
s**********e
发帖数: 140
19
来自主题: Biology版 - stem cell会衰老吗?
1.stem cell会衰老吗?
2.stem cell会随着所属生命体年龄的增大而衰老吗?
培养皿中的stem cell分裂为两个daughter cells,
其中一个daughter cell会比另一个更衰老吗?(大肠杆菌就有这种现象)
j*********o
发帖数: 237
20
先多谢了!!
Tao Deng,Ph.D
Email: [email protected]
/* */
Research Fellow
National Cancer Institute
National Institutes of Health
Summary of Research Experience:
Deep understanding of epigenetic regulations, including DNA methylation,
histone modifications and chromatin dynamics
Rich experience on mouse embryonic stem cell manipulation
Full hands-on experience on Next-generation sequencing
Selected Publication:
1. Deng T*, Zhu ZI*, Zhang S, Postnikov Y, Huang D, Horrsch M, Furusawa T,
Beckers J,... 阅读全帖
t****t
发帖数: 45
21
Job Title: Postdoctoral Position in Biomaterials, Stem Cells, and Tissue
Regeneration
Application Deadline: Open Until Filled
Job Description
Description:
The Department of Biomedical Engineering at the University of Minnesota
currently has an opening for a post-doctoral fellow to conduct studies in
the area of biomaterials and tissue regeneration. The project involves
materials engineering on the molecular level, scaffold fabrication, and stem
cells.
Qualifications:
Candidates must have a Ph.D.... 阅读全帖
t****t
发帖数: 45
22
Job Title: Postdoctoral Position in Biomaterials, Stem Cells, and Tissue
Regeneration
Application Deadline: Open Until Filled
Job Description
Description:
The Department of Biomedical Engineering at the University of Minnesota
currently has an opening for a post-doctoral fellow to conduct studies in
the area of biomaterials and tissue regeneration. The project involves
materials engineering on the molecular level, scaffold fabrication, and stem
cells.
Qualifications:
Candidates must have a Ph.D.... 阅读全帖
t****t
发帖数: 45
23
【 以下文字转载自 Biology 讨论区 】
发信人: tcdust (tcdust), 信区: Biology
标 题: Postdoctoral Research Fellow in Biomaterials and Stem Cells (转载)
发信站: BBS 未名空间站 (Sun May 2 14:25:10 2010, 美东)
发信人: tcdust (tcdust), 信区: Engineering
标 题: Postdoctoral Research Fellow in Biomaterials and Stem Cells
发信站: BBS 未名空间站 (Sun May 2 14:22:49 2010, 美东)
University of Minnesota
Job Title: Postdoctoral Research Fellow in Biomaterials and Stem Cells
Job Number:
Date Posted: 05/01/2010
Application Deadline: Open Until Filled
Job
t****t
发帖数: 45
24
Job Title: Postdoctoral Position in Biomaterials, Stem Cells, and Tissue
Regeneration
Application Deadline: Open Until Filled
Job Description
Description:
The Department of Biomedical Engineering at the University of Minnesota
currently has an opening for a post-doctoral fellow to conduct studies in
the area of biomaterials and tissue regeneration. The project involves
materials engineering on the molecular level, scaffold fabrication, and stem
cells.
Qualifications:
Candidates must have a Ph.D.... 阅读全帖
s**********e
发帖数: 140
25
来自主题: MedicalCareer版 - stem cell会衰老吗?
1.stem cell会衰老吗?
2.stem cell会随着所属生命体年龄的增大而衰老吗?
培养皿中的stem cell分裂为两个daughter cells,
其中一个daughter cell会比另一个更衰老吗?(大肠杆菌就有这种现象)
r******t
发帖数: 673
26
来自主题: Nursing版 - hire new grads through STEM program?
应该不包括护士吧?
STEM-Designated Degree Program List:
http://www.ice.gov/doclib/sevis/pdf/stem-list-2011.pdf
在nursing forum 看到的。
sil in Yonkers, New York said: hey priya... its hard to find a job as RN
these days, but not impossible, keep applying everywhere, dunt limit urself.
... to NJ, also try NYC and suburbs like westchester, or queens, brooklyn,
LI or SI, even try CT...i just found a job in CT, and i graduated in may
2010, try stamfor hospital...they hire new grads through STEM program, apply
ASA... 阅读全帖
a*****8
发帖数: 4
27
来自主题: Pharmaceutical版 - Got solution to add Pharmacy major to STEM
I just got information from AILA and told me how to add Pharmacy major to
STEM.
See belows.
"It certainly seems as though these areas should be included. DHS has
announced a means for commenting on the categories. We will be doing so,
but I'd suggest you and any other organizations and entities involved in the
field (including your university) do so as well. The information is:
"To suggest a change to the list of STEM designated degrees, write to SEVIS.
S****[email protected], with STEM Code Change R
b*******h
发帖数: 58
28
大家好, 我去年拿到mathematical finance的master degree并开始用12个月的opt工作
. 现在opt就快到期, 我希望能申
请17个月的opt延长, 但是学校国际办公事工作人员称这个program并不在stem的表里,
没有资格申请opt延长. 可是我查
到"27.0305 (2010 CIP code): financial mathematics" 明明在stem的准许名单里
http://www.ice.gov/doclib/sevis/pdf/stem-list-2011.pdf, 且同一网站对financial mathematics的内容描述与我
读的program也完全一致. 但是学校国际办公事工作人员仍然一口咬定不行. 大家知道
这是什么原因吗? 有没有同学以前碰
到相似的情况? 不知大家能想到什么解决的办法吗? 谢谢!
P********r
发帖数: 92
29
来自主题: Medicalpractice版 - Embryonic stem cell breakthrough-- clinical trial
叹口气,居然又退化到靠读新闻才知道 the advancement in medical research.
真是新年新气象,Embryonic stem cell breakthrough -- 用在病人上啦!How
exciting. (嗯,晚上要读下文献了)
http://www.cnn.com/video/?hpt=hp_c2#/video/health/2012/01/23/ex
breakthrough.cnn
When would the doctors prescribe 'stem cells'? Or any product related with
stem cells? :-)
s**********e
发帖数: 140
30
来自主题: Neuroscience版 - stem cell会衰老吗?
1.stem cell会衰老吗?
2.stem cell会随着所属生命体年龄的增大而衰老吗?
培养皿中的stem cell分裂为两个daughter cells,
其中一个daughter cell会比另一个更衰老吗?(大肠杆菌就有这种现象)
a****o
发帖数: 1786
31
来自主题: _Harvard_Medical_School版 - New progress on stem cell therapy (转载)
【 以下文字转载自 Biology 讨论区 】
发信人: Oncogene (最近长脾气了), 信区: Biology
标 题: New progress on stem cell therapy
发信站: BBS 未名空间站 (Wed Jul 7 01:46:28 2010, 美东)
这个厉害,治愈率高达80%,还没啥副作用,牛啊。看来不搞stem cell是不成了,
hoho
Link of this news:
http://www.msnbc.msn.com/id/37881663/
Stem cells reverse blindness caused by burns
Procedure restored sight in 75 percent of patients, researchers reported
LOS ANGELES Dozens of people who were blinded or otherwise suffered se
vere eye damage when they were splashed with caustic chemica
b*******b
发帖数: 30
32
For only the second time, the Food and Drug Administration approved a
company's request to test an
embryonic stem cell-based therapy on human patients. Advanced Cell
Technology (ACT), based in
Marlborough, Mass., will begin testing its retinal cell treatment this year
in a dozen patients with Stargardt's
macular dystrophy, an inherited degenerative eye disease that leads to
blindness in children. In July, the FDA
released its hold on the first trial of an embryonic stem cell based
treatment, for... 阅读全帖
d*******o
发帖数: 1317
33
来自主题: Military版 - 为啥巴马要反对stem bill啊
虽然看新闻解释了一大堆乱七八糟的, 但是通过stem bill就会得罪民主党的票仓?
这个道理看不懂,小墨也不能抽签。况且就算得罪一部分票仓,但是stem bill明显符
合国家利益啊。美国其他的选民也不是傻子。
M*********n
发帖数: 4839
34
来自主题: Military版 - 请问STEM的家属签证 (转载)
【 以下文字转载自 EB23 讨论区 】
发信人: coyote87 (Coyote), 信区: EB23
标 题: 请问STEM的家属签证
发信站: BBS 未名空间站 (Sat Feb 2 22:09:29 2013, 美东)
现在女友还没过来,我明年毕业,有下面两条路:
1,毕业前过来,F2,那么如果我明年毕业按照STEM法案能拿绿卡,那我女朋友的对应签
证是什么?多久能拿绿卡?
2,毕业后过来,假设我已经有绿卡了,这时是不是她更难过来?(有移民倾向?)
多谢赐教!
w****r
发帖数: 15252
35
做梦吧,民主党就算舔老莫的屁股,也不会给STEM好脸色的
人家一家生4,5个,以后就是千万亿的选票,STEM算老几,很多还是撸管男
C**********e
发帖数: 23303
36
美国为了留住中国留学生
STEM专业的绿卡大放水
排期基本缩短到零
STEM专业拿绿卡分分钟
算不算天大教授为在美华人谋的福利?
u*****a
发帖数: 9489
37
转自华人
STEM OPT新政策开始公示了!大家快去评论支持!
https://www.federalregister.gov/articles/2015/10/19/2015-26395/improving-and
-expanding-training-opportunities-for-f-1-nonimmigrant-students-with-stem-
degrees-and
新版OPT extension出炉,由17个月变为24个月,公示期30天。希望大家踊跃提交正式
评论。请抓住核心观点“如果取消了OPT Extension美国经济将会受到严重影响”。公
示结束后会有人评估,不是说新政策就一定通过,请各位踊跃提交评论,不要掉以轻心!
另外,http://www.regulations.gov/#!docketBrowser;rpp=25;po=0;dct=PS;D=ICEB-2015-0002 这里有已经提交的评论们,可以参考下
l*3
发帖数: 2279
38
我老认为,现在年轻人都浮躁的很,不想走学术路线,一个个都去街上或者谷里赚钱,
尤其是那些很聪明的。如果我帝弄个政策,让美国本土STEM的低薪高级劳工们毕业直接
能拿到绿卡,则可以大幅提高STEM的博士的竞争激烈程度和录取门槛。展望未来,生物
行业三十年不愁刷试管的后备力量。我老此举可保我帝再称霸至少半个世纪,诸位将军
意见如何?
a****i
发帖数: 4783
39
我弟早就放弃靠STEM称霸了,如你所言,我弟现在的中坚力量是花街和谷里,或者说,
STEM是落后生产力的表现,
a******9
发帖数: 20431
40
废话 stem教育当然没问题
有问题的是初等教育 培养出来的高中毕业生无法正常接受大学stem教育
m***a
发帖数: 2262
41

STEM教育当然包括中学教育,US News还有美国公立高中STEM教育的排名。
http://www.usnews.com/education/best-high-schools/articles/slid
Q**********u
发帖数: 1616
42
生物千老拍手称快

:【 以下文字转载自 USANews 讨论区 】
http://www.huffingtonpost.com/2012/11/28/stem-act-white-house-immigration_n_2207279.html
:The STEM Jobs Act, proposed by House Judiciary Chairman Lamar Smith (R-
Texas), is focused on the relatively uncontroversial idea that more highly-
:skilled immigrants should be allowed to come to, or stay in, the U.S. It
:would add 55,000 visas for masters and doctoral degree holders in science,
:technology, engineering and mathematics.
:At the same time, though, it woul... 阅读全帖
w****y
发帖数: 2952
43
民主党一贯方针不都是不反对STEM律卡,但非法移民一并解决。如果只有STEM绿卡,民
主党是投反对票的。
f****l
发帖数: 8042
44
也不要这样说,前两年刚出来这个大饼的时候,版上一样的一片欢腾。八字还没有一撇
,版上居然为了哪些是STEM,那些不是,不是STEM专业的如何如何SB了之类的吵成一片。
w*******e
发帖数: 15912
45
美帝移民政策就是个joke
正了八经美帝STEM博士毕业的弄不到H1B,就是搞定H1B,申请绿卡移民排期排死你。
偷渡的/B1/B2来美国黑下来搞政庇的,分分钟搞定绿卡,人家没配额。
a*c
发帖数: 701
46
算了吧,美帝现在自己的stem不要太热,一个高中搞个编程比赛,能有500人的waiting
list. 美帝再撑个几年,h1绿卡可以全面取消
w*********g
发帖数: 30882
47
的确是不对,STEM人才,美国还是需要的。
l*y
发帖数: 21010
48
来自主题: Military版 - 坚决反对STEM绿卡 (转载)
【 以下文字转载自 USANews 讨论区 】
发信人: ldy (大才001), 信区: USANews
标 题: 坚决反对STEM绿卡
发信站: BBS 未名空间站 (Sun Sep 18 09:31:16 2016, 美东)
大部分外国STEM留学生就是垃圾 包括中国来的
凭什么直接拿绿卡
有公司要 工作五年以上倒是应该拿
v*********u
发帖数: 10464
49
【 以下文字转载自 USANews 讨论区 】
发信人: vincentsjtu (联合国采购&国际会议), 信区: USANews
标 题: 以后都是印度人读STEM了,请珍惜身边的华人
发信站: BBS 未名空间站 (Mon Dec 25 16:12:48 2017, 美东)
以后华人读stem就是珍稀动物了,感谢川普,让印度人火速占领美国
a********9
发帖数: 3813
50
幸亏是 川普成了总统,
要是希拉里成了总统, 你家现在挤满了非法移民, 难民, 你就爽了吗。
【 在 vincentsjtu (联合国采购&国际会议) 的大作中提到: 】 : 发信人:
vincentsjtu (联合国采购&国际会议), 信区: USANews : 标 题: 以后都是印度人读
STEM了,请珍惜身边的华人 : 发信站: BBS 未名空间站 (Mon Dec 25 16:12:48 2017,
美东) : 以后华人读stem就是珍稀动物了,感谢川普,让印度人火速占领美国
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