a****m
发帖数: 693 | 1 总是说不能display, 如果把所有的class里面的改成public, 就可以直接用num and
denum
输出到 display， 但是如果private，怎么都不行，谢谢。
#include
using namespace std;
class CFraction
{
private: //private method to get GCD
int num;
int denum;
public:
CFraction(int num, int denum);
int getnum();
int getdenum();
void display();
};
//constructor...
int CFraction::getnum(){
return num;
}
int CFraction::getdenum(){
return denum;
}
CFraction::CFraction( int a, int b )
{
num = a;
denum = b;
}
void CFraction::display() {
cout << ... 阅读全帖 |
|
j**********e
发帖数: 1615 | 2 a casulty actuary is trying to predict the claim frequency for a new group
of 100 policyholders. experience with similar groups suggest that 25% of
these policyholders will file at least one claim during their first year.
however, since no data on this group are available, the actuary treats this
25% fraction with some skepticism and instead decides to model the fraction
P using the density:f(p)=3(1-p)^2 0
suppose that no claims are filed during the first ear. what is the
probability that P |
|
d*********e
发帖数: 3835 | 3 POSITION AVAILABLE:
NetJets, Inc.
Job Description
Flight Safety Specialist
NetJets Inc. is the worldwide leader in private aviation, and as a Berkshire
Hathaway company, NetJets has the commitment and resources to invest what
is necessary to provide the safest and most reliable travel management
service.
NetJets fractional aircraft ownership allows individuals and companies to
buy a share of a private jet at a fraction of the cost of whole aircraft
ownership with guaranteed availability in as fe |
|
M****e
发帖数: 70 | 4 is there IP assay available? i think it is necessary if you
can fractionate the protein by columns (many biochemcal stuffs
that i am not familiar, which i read from purification of
p300 transcription factor, i think people in this area knows
a lot). then do the assay to see which fraction has the
activity (is this specific reaction?) thus you know the effective
size.
is this endogenous or expressed protein? guess it is
endogenous, given the big size. try IP with the antibody and
do the assay. or |
|
O******e
发帖数: 4845 | 5 ☆─────────────────────────────────────☆
toptip (老君) 于 (Mon Dec 11 19:21:54 2006) 提到:
刚看到有人讨论做protein interaction。把我最近碰到的几个问题贴这里一下，跟很
多周围的人讨论了也说不出所以然，人多力量大，也许这里有朋友能指点一二。
1 一个蛋白western有两条特异的带，其中一条带是预测的分子量大小，另一条大35kd
。不可能是alternative splicing，不可能是alternative start codon；用DTT或H2O2
处理，条带不变；不可能是糖基化和sumolation。大家说说还可能是什么？
2 另一个蛋白用交联剂交联后从cell lysate纯化，除了自身的带之外有两条shift的带
。打质谱后大的shift条带里有一个已知的结合蛋白，小的shift 35kd，死活打不出新
的蛋白。大家解释一下？
3 做以上两个蛋白的gel filtration。 从第一个fraction到最后一个fraction都有这
两个蛋白分布，量还比较均匀。理论上 |
|
a***e
发帖数: 1010 | 6 think about this way:
the first 0.5% NP-40 treat 1 min, transfer supernant to new tube. this
should be very clean cytoplamic fraction.
the second 0.5% NP-40 treat 10 min, wash several times and save pellet.
this should be very clean nuclear fraction.
I mean 1 min and 10 min are just extreme examples. |
|
S******G
发帖数: 965 | 7 我的一个朋友给了我文章里面的数据。
1. 砷出现在protein，DNA这些里面不能说明他们对machinery和biochemistry有贡献。
换言之，这个细菌也许只用了其他10%的endogenous的100%含磷的agent来进行生化活动
。更退一步来说，如果there had been no phosphorus to begin with, 这些细菌肯定
活不下去。
2. 说明砷和磷一样是砷酸盐的形势存在。很好很强大，还是不能说明问题。
我觉得他们放卫星放得太早了点。
1. When the researchers added radioactively labeled arsenate to the bacteria
’s culture,they were later able to discern its presence in the protein,
lipid, nucleic acid, and metabolite fractions of the cells, suggesting that
arsenic had been incorporated i... 阅读全帖 |
|
j******i
发帖数: 844 | 8 关于血小板和succrose gradient都没有经验，想向这方面有经验的人请教一下。
我是google的protocol。血小板是医院用过期的，所以variation比较大，也不能保证
供应及时。所以我经常觉得拿到的gradient差距比较大。我难以根据分层来确定每一层
是什么细胞器官。我也试图用比如vwf的抗体来确认起码alpha granule那个fraction，
但可能血小板太浓或者我分离的时候互相污染，效果不理想（感觉到处都有点）。我想
就这种gradient发文章的时候总不能你说是哪个fraction就算吧，以前做过这个实验的
牛人是怎么解决这个问题的？ |
|
s****a
发帖数: 454 | 9 谢谢你的回复,
我倒是看文献的时候看别人说是pump, tubing级UVreading之类的,没想通是怎么操作的
,你这一解释我明白多了.
我们手头应该没有你说的pump.手工操作的话就是取fraction 出来,提取RNA,然后定量,
把读数高的fraction混起来,就可以做rt -PCR?
thus |
|
j********r
发帖数: 156 | 10 Theoretically you can. But first make sure the preparation is good. Taking
fractions by hand is not that accurate, (if you have no other options, try
take 0.5 ml per fraction). They are many tricks in doing such a experiments
(such as some people add cycloheximide to the cells 5-10 min before harvest)
. I would suggest you look for other labs in your institute with good
experience) to have some hands-on training. Good luck, |
|
s****a
发帖数: 454 | 11 真的是太感谢了.
组织匀浆的时候加了50U/ml的RNAsin,还用不用加heparin了?用的一般浓度多少?
我还没有注意到这个gradient有W/V,W/W的区别.我用的是W/V,那我就是还需要加两个
gradient?我的是10ml的gradient.15-50W/V的话,那就是差不多1.25ml一个5%的梯度.我
的是机器上的梯度.不过谢谢你的手动梯度的方法.
取样的话,我们这里没有realtime的UV reader.所以不是很准.我现在想, 要不要改成
250ul一个fraction.
上样之前我没有测OD,只是去了30mg的组织.那我等下次预实验的时候测一下.
还有,就是组织匀浆可以冻存吗,还是每次要新鲜配置?
收集的fraction我想用RNeasy Plus minikit来提RNA,正在看手册,不知道这么多的蔗糖
会不会太绸 |
|
s******y
发帖数: 220 | 12 做subcellular fractionation 提取nucleus， 我的target 蛋白应该在cytosol和
nuclear fraction 都有。
可是用kit，只看到核有，用自己找的一个protocol只看到cytosol 有，也不知道核蛋
白提出来没。
请问nuclear loading control用什么好呢？ 我借了个lamin a的抗体，居然只在
cytosol里面有，不合理啊。
作为nuclear loading control， anti－histone是不好点？ 谢谢了。 |
|
s******y
发帖数: 220 | 13 做subcellular fractionation， nuclear fraction 好像没得到。
看文献说，lyse the nuclei with 10 passages through an 18-gauge needle.
这个是不是就是把lysate suspension load 到syringe 里面，然后推出来，再重新
load，反复来十次呢？
有什么要注意的吗？ 谢谢。
还有就是好像最初的tissue lysate 在centrifudge之前也要filter 来去除debris，
能同样的用这种syringe filter吗？needle
也是18 gauge吗？
因为我的量比较少，大概300-500ul把，有什么好的filter 方法请推荐一下，谢谢。 |
|
t****g
发帖数: 120 | 14 正在研究一种被研究得不多的protein, 不少cancer cell line都表达这种蛋白质，但
protein level并不高。 当我overexpress tagged protein之后，发现它能进入
nucleus。 我生物刚入门，不清楚这种能进入nucleus是不是个big deal。 有些疑问：
1） 我用来分cytoplasmic and nuclear proteins的protocol，我的同事质疑我能不能
tell到底这个蛋白质能进nucleus还是membrane. 我用的是在abcam上找到的protocol,
Buffer A (cyto)
10 mM HEPES, 1.5 mM MgCl2, 10 mM KCl, 0.5 mM DTT,
0.05% NP40 (or 0.05% Igepal or Tergitol) pH 7.9
Buffer B (nucl)
5 mM HEPES, 1.5 mM MgCl2, 0.2 mM EDTA, 0.5 mM DTT, 150mM NaCl
26% glycerol (v/v), pH 7.9
2） 接下来该... 阅读全帖 |
|
l**********1
发帖数: 5204 | 15 Please go to
//www.ncbi.nlm.nih.gov/pmc/articles/PMC2518226/
>Overall, our results suggest that PUB22 and PUB23 coordinately control a
drought signaling pathway by ubiquitinating cytosolic RPN12a in Arabidopsis.
Subcellular Localization
The sGFP cDNA clone was fused in-frame to the 59 end of the full-length
PUB22 and PUB23 coding region and ligated into the pBI221 transient
expression vector. The sGFP-PUB22 and sGFP-PUB23 fusion constructs
were transformed into protoplasts prepared from wild-typ... 阅读全帖 |
|
c********r
发帖数: 189 | 16 1) FRAP to see the protein's mobility in nucleus.
2) cell fractionation to see if the protein only in DNA binding fraction |
|
d****d
发帖数: 214 | 17 April 16, 2012
A Sharp Rise in Retractions Prompts Calls for Reform
By CARL ZIMMER
In the fall of 2010, Dr. Ferric C. Fang made an unsettling discovery. Dr.
Fang, who is editor in chief of the journal Infection and Immunity, found
that one of his authors had doctored several papers.
It was a new experience for him. “Prior to that time,” he said in an
interview, “Infection and Immunity had only retracted nine articles over a
40-year period.”
The journal wound up retracting six of the papers from ... 阅读全帖 |
|
b******y
发帖数: 627 | 18 For LZ,
sunnyday's desalting method is the best to try. I will be surprised if it
doesn't work. I guess you have to use a syringe because nobody likes to
inject 32P into their FPLC. In that case, you should be careful of the
fraction size. Don't mix two well separated peaks during fractionation.
kaka1000's vivapure spin column离子交换柱 is a cation/anion exchange column,
to which unlimited volume can be loaded. In the end, elute with B buffer.
The peak is sharp because the salt concentration is high ... 阅读全帖 |
|
T*****u
发帖数: 3257 | 19 希望表达在cytoplasm. 分crude membrane and cytosolic fraction发现在membrane
fraction里面。用cofocal看却看到在 everywhere。怎么回事？ |
|
K*F
发帖数: 120 | 20 请您转发 z******[email protected]
万分感谢！祝您身体健康，财源广进！
Biochim Biophys Acta. 1988 Apr 28;954(1):1-13.
The inducible trimethylamine-N-oxide reductase of Escherichia coli K12:
biochemical and immunological studies.
Silvestro A, Pommier J, Giordano G.
Source
Laboratoire de Structure et Fonction des Biomembranes, CNRS, Marseille,
France.
Abstract
The inducible trimethylamine-N-oxide reductase which migrates on non-
denaturing polyacrylamide gels with an RF of 0.22, has been purified from
the soluble fraction o... 阅读全帖 |
|
Z******t
发帖数: 206 | 21 想分离 nuclear / cytoplasmic 蛋白,没做过 fractionation,
谁能推荐一个效果好的 fractionation 试剂盒啊? |
|
Z******t
发帖数: 206 | 22 请问有什么好的protocol 或者试剂盒吗?
我新手,做fractionation 发现 cytoplasmic fraction 里面有 histone.
这种情况怎么避免阿? |
|
A*******s
发帖数: 9638 | 23 有人认为是浪费时间和精力。
AAN: Stem Cells Show Promise in Mouse Model of ALS
THURSDAY, Jan. 10 (HealthDay News) -- Implantation of a neural stem cell (
NCS) fraction of induced pluripotent stem cells (iPSCs) shows promise in a
mouse model of amyotrophic lateral sclerosis (ALS), according to a study
released in advance of its presentation at the annual meeting of the
American Academy of Neurology, which will be held from March 16 to 23 in San
Diego.
Stefania Corti, M.D., Ph.D., from the University of Milan, ... 阅读全帖 |
|
m*******8
发帖数: 256 | 24 最近用昆虫细胞分泌表达了两个蛋白的复合物，his tag纯化以后用Amicon浓缩体积到
300ul左右上Superdex 200柱子，结果只有很低的峰。跑了PAGE胶，gel filtration之
前取了1/150体积的样，蛋白量很多，过柱子后的fraction取了1/20的样，基本看不到
条带。把所有的fraction收集起来再用Amicon浓缩，也没蛋白，不知道蛋白哪里去了？
过柱子时奇怪的是基线一开始就从0 mAU跳到30 mAU，目的蛋白处的峰只有45mAU,在一
个柱体积快结束的时候突然出现很多500mAU左右的峰，不知道是什么东西。辛辛苦苦搞
了这么多蛋白全没了，很沮丧，关键是不知道哪里出错了，哪位大侠能指点迷津，不胜
感激！ |
|
j****1
发帖数: 81 | 25 I'm a second year Phd student and I'm doing my prelim now. I don't know if
it's okay to post my proposal abstracts online for people to comment on.
This is one of the proposals I have to write for my prelim. I hope people on
this board could give me some feedback, especially ones that have relevant
knowledge. Thanks very much.
----------------------------------------------------------------------------
-----------------------
Cancer stem cells are considered to be the source of tumor recurrence.... 阅读全帖 |
|
r*****i
发帖数: 117 | 26 However, a large fraction of Chinese emissions is due to manufacture of
goods for foreign consumption.
MLGBD
把文章中心意思读明白再喷，好吗?
However, a large fraction of Chinese emissions is due to manufacture of
goods for foreign consumption.
这句话是文章的中心:::大部分中国的碳排放或者污染排放都是因为给其他国家制造商
品造成的。
意思是，其他国家得了便宜还卖乖。你们要是自己生产那些物品，中国不会污染那么严
重 |
|
m******u
发帖数: 12400 | 27 这是大小概念的意思吧。后者包含前者。ribosome profile，前面的fraction就是
ribosome 独立的大、小亚基，中间是monosome，后面的fraction就是polysome了。这
个profileing使用来检测活性翻译的mRNA的，所以叫profiling。我看过你另外的那个
帖子了，这个方法不是你想要的。你要的是核糖体活性差异，而不是mRNA的
tanslatiblity的差异。你再想想其他办法，或者至少要多这个方法做些modification
。 |
|
r***e
发帖数: 2539 | 28 请教做过这个实验的高手。
HDJ2和Rap1a分别作为抑制farnesylation和geranylgeranylation的marker，阳性对照
是FTI-276和GGTI-298,我知道抑制修饰本身没问题。（因为用fractionation assay做
过，而且cytosolic fraction做过Kras的质谱，确认没有修饰了，所以样品没问题。）
reviewer一定要bandshift的实验，我尝试过不同浓度的precast bis-tris gel，MOPS
和MES buffer都试过了，还试过把目的蛋白跑到最下面，都跑不出很明显的区别。文献
一般都是用普通的tris-glycine gel （8% for HDJ2, 12% for Rap1a），这个有关系
吗？
请高手指点，谢谢！ |
|
发帖数: 1 | 29 最好能尽快开始工作，感兴趣的请给我发站内邮件。
我们公司（Impossible Foods）是湾区南半岛的中等规模生物技术公司，首个产品刚上
市，正在迅速扩张中。希望你有两年以上的蛋白质组学经验，最好受过系统的生物化学
教育。请在邮件中简单介绍一下自己，并附上你的email。我会尽快和你联系。
Research Associate- Biochemistry and Proteomics at Impossible Foods (View
all jobs)
Redwood City, California
Impossible Foods is leading the way to a sustainable global food system. We
are developing transformative new technologies to produce great plant-based
foods that outperform existing meat and dairy products in taste and
nutrition, at a lower c... 阅读全帖 |
|
T********l
发帖数: 1670 | 30 I happen to do some hydrogenation work in a pharma. it is very interesting
to see high gas volume fraction in the tank at the high rpm. Although I
read through your technical note , I really not sure the mechanism you
present in the web. especially in the graph of the gas volume fraction
distribution at 200rpm. If you can tell me a little bit more, that would be
great ! |
|
s*****g
发帖数: 221 | 31 sorry, confusing.....
Both of the eq. are for composites.
the first Wc fraction using the composites mass as denominator.
the second Wc fraction using the polymer matrix mass as denominator.
My question is, is it right?
How to prove them right easily. |
|
s*****g
发帖数: 221 | 32 sorry, my question originally is,
I believe The second equation obtained the
Wc fraction based on composite's mass.
because it looks like not convincing (maybe I am wrong).
so I intended to simplify it but gave you the first equation.
my difficulty here is I need a equation to calculate
the Wc fraction based on composite's mass.
but I need to convince the reviewer the eq. is right.
I donot think it is a good idea to deduce it using high school
knowledge(step by step).
so I am asking for a refer |
|
c******h
发帖数: 4573 | 33 NMR先看看两段的mole fraction
Fox Equation的话是weight fraction
假定一个相当的重量的polymer，已知三个Tg，两个mol% 其中一段的分子量，应该可以
计算吧？不过都是大大的近似值了。 |
|
c********r
发帖数: 2227 | 34 我觉得不行啊....
在给第一个大牛的回帖里说了一下
NMR先看看两段的mole fraction
Fox Equation的话是weight fraction
假定一个相当的重量的polymer，已知三个Tg，两个mol% 其中一段的分子量，应该可以
计算吧？不过都是大大的近似值了。 |
|
c*******s
发帖数: 140 | 35 Fractal（分形）一词的由来
据曼德勃罗教授自己说，fractal一词是1975年夏天的一个寂静夜晚，他在冥
思苦想之余偶翻他儿子的拉丁文字典时，突然想到的。此词源于拉丁文形容词
fractus，对应的拉丁文动词是frangere（“破碎”、“产生无规碎片”）。此外
与英文的fraction（“碎片”、“分数”）及fragment（“碎片”）具有相同的词
根。在70年代中期以前，曼德勃罗一直使用英文fractional一词来表示他的分形思
想。因此，取拉丁词之头，撷英文之尾的fractal，本意是不规则的、破碎的、分
数的。曼德勃罗是想用此词来描述自然界中传统欧几里德几何学所不能描述的一大
类复杂无规的几何对象。例如，弯弯曲曲的海岸线、起伏不平的山脉，粗糙不堪的
断面，变幻无常的浮云，九曲回肠的河流，纵横交错的血管，令人眼花僚乱的满天
繁星等。它们的特点是，极不规则或极不光滑。直观而粗略地说，这些对象都是分
形。 |
|
l***o
发帖数: 7937 | 36 (1)
Rumors swept through the mathematics community that a great advance had been
made by a researcher no one seemed to know — someone whose talents had
been so overlooked after he earned his doctorate in 1992 that he had found
it difficult to get an academic job, working for several years as an
accountant and even in a Subway sandwich shop.
“Basically, no one knows him,” said Andrew Granville, a number theorist at
the Université de Montréal. “Now, suddenly, he has proved one of the
great results... 阅读全帖 |
|
D**o
发帖数: 2653 | 37 注意作者 \author{YHBKJ}
Atiyah-Bott Localization 1
2012-09-05 09:24:19
\documentclass[a4paper,12pt]{article}
\usepackage{amsfonts}
\usepackage{amsmath,amsthm,amssymb}
\usepackage{CJK,graphicx}
\usepackage{amscd}
\usepackage{amssymb}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}{Corollary}[section]
\newtheorem{definition}{Definition}[section]
\newtheorem{lemma}{Lemma}[section]
\begin{document}
\title{\textbf{\Huge{Atiyah-Bott Localization 1}}}\author{YHBKJ}\date{}\
maketitle
\begin{ab... 阅读全帖 |
|
M********r
发帖数: 179 | 38 问了几个地方，都觉得a 和e 都对，不知道是不是落下了什么重要的concept.
During an experiment, the following data are obtained from an anesthetized
dog:
Mean glomerular capillary hydrostatic pressure 45mmHg
Mean Bowman space hydrostatic pressure 12mm Hg
Mean glomerular capillary oncotic presure 23mmHg
Mean bowman space ontotic pressure 0mm Hg
Coefficient of filtration 3.0ml/
min mmHg
Renal blood flow ... 阅读全帖 |
|
l******u
发帖数: 2314 | 39 现在找不到我师弟，我先试试看是不是能回答还是你要更多的细节：
sigma = sigma0 (p-p0)^t
sigma: conductivity data to plot (Y)
p: volume fraction (or mass fraction) to plot (X)
plot Y against X, then fit the scattered points using
Y=sigma0 (X-p0)^t
to obtain fitted p0 and t.
Theoretically, t ~ 1.3 for 2-D system and ~1.94 for 3-D system. t value is
usually close to 1.9 (2.1 in the SynMet paper) if your film is of reasonable
thickness. |
|
f****o
发帖数: 2770 | 40 GENERAL PRINCIPLES
The first step in managing chronic HF is to determine the etiology or
precipitating factors. Treatment of underlying disorders (e.g., anemia,
hyperthyroidism) may obviate the need for treatment of HF.
Nonpharmacologic interventions include cardiac rehabilitation and
restriction of fluid intake (maximum 2 L/day from all sources) and dietary
sodium (approximately 1.5 to 2 g of sodium per day).
Stage A: The emphasis is on identifying and modifying risk factors to
prevent developm... 阅读全帖 |
|
k*****n
发帖数: 117 | 41 Below are taken from wikipedia. In practice, all model assumptions can be
violated:
The Black–Scholes model assumes that the market consists of at least one
risky asset, usually called the stock, and one riskless asset, usually
called the money market, cash, or bond.
Now we make assumptions on the assets (which explain their names):
(riskless rate) The rate of return on the riskless asset is constant and
thus called the risk-free interest rate.
(random walk) The instantaneous log returns... 阅读全帖 |
|
|
f**********g
发帖数: 2252 | 43 It's cold now, the natural gas will have good performance in the winter.
Crosstex Energy (NASDAQ:XTXI) has very low ratio with a Price To Last
Quarter Annualized Sales of 0.26x. Price/LQA Sales is a valuable metric used
to compare comparable companies using the most recent sales data on an
annualized basis. Generally, the lower the ratio, the more undervalued the
company.
The Chart is Triangel Ascending, and the volume is very low currently. 3Q ER
Crosstex Energy, Inc., through its partnership i... 阅读全帖 |
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f**********g
发帖数: 2252 | 44 【 以下文字转载自 Stockcafeteria 俱乐部 】
发信人: fangxuanling (老房), 信区: Stockcafeteria
标 题: Natural Gas Utilities:XTXI
发信站: BBS 未名空间站 (Mon Oct 4 01:27:50 2010, 美东)
It's cold now, the natural gas will have good performance in the winter.
Crosstex Energy (NASDAQ:XTXI) has very low ratio with a Price To Last
Quarter Annualized Sales of 0.26x. Price/LQA Sales is a valuable metric used
to compare comparable companies using the most recent sales data on an
annualized basis. Generally, the lower the ratio, the mo... 阅读全帖 |
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y*****l
发帖数: 5997 | 45 ☆─────────────────────────────────────☆
tanmaomao (坛猫猫) 于 (Tue Nov 16 18:13:00 2010, 美东) 提到:
RT
☆─────────────────────────────────────☆
tanmaomao (坛猫猫) 于 (Tue Nov 16 18:24:25 2010, 美东) 提到:
发信人: tanmaomao (坛猫猫), 信区: Stock
标 题: Re: 铀价格走势图 (转载)
发信站: BBS 未名空间站 (Tue Nov 16 18:23:29 2010, 美东)
Ux U3O8 Price indicator is the longest-running weekly uranium price series,
used by the industry in sales contracts
☆─────────────────────────────────────☆
tanmaomao (坛猫猫) 于 (Wed Nov 17 09:34:37 20... 阅读全帖 |
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t********r
发帖数: 4908 | 46 很多单词不会写，都是我搞定的。语法错误没管，拼写错误都被我纠正了，呵呵
文盲我还专门google了一下fraction的意思，原来是分数
Dear Santa,
My name is Tina Li. Please can I have a kitchen? If you don't have a kitchen
, you can give me a jewelry box. If you don't have a jewelry box, you can gi
ve whatever things you want to give me. My little sister wants one present t
oo, that is baby toys and plastics.
I feed my little sister sometimes, I help my new friend, I be nice to they t
oo, I help my mom clean up my toy room and my room, also my mom's room, I h... 阅读全帖 |
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M*****8
发帖数: 17722 | 47 【 以下文字转载自 TraderSuccess 俱乐部 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: TraderSuccess
标 题: 今天 TraderSuccess(tm) 电子信的内容 (March 22, 2011)
发信站: BBS 未名空间站 (Wed Mar 23 13:02:39 2011, 美东)
有免费的 eMail Newsletter:
欢迎订阅。
http://StockCounsel.com/pm/user/subscribe.php
=================================================
MCP Now Bearish (March 22, 2011)
We now confirm that MCP is over-extended and bearish.
http://yhoo.it/eEiguu
Here is the latest forecasts (as of last night, March 22, 2011):
SYMBOL, DATE... 阅读全帖 |
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f*******s
发帖数: 571 | 48 说你文化水平低，你就不知道收敛一点儿？
再给你扫个盲，“人均预期寿命”是指人出生时平均可存活的年数。是向前预期的。
1950年的人均预期寿命是指向1950年以后的，这和1949年前的内战没关系了。
就算把1950年后阵亡人数最多的朝鲜战争算上，由于战场不在中国，以中国的人口基数来看，这样的阵亡人数（就算为百万数量级）也不足以使人均预期寿命发生很多变化。
不过这需要统计学知识，我对你能否理解表示怀疑
Life expectancy is the expected (in the statistical sense) number of years
of life remaining at a given age.[1] It is denoted by ex, which means the
average number of subsequent years of life for someone now aged x, according
to a particular mortality experience. (In technical literature, this symb... 阅读全帖 |
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c**i
发帖数: 6973 | 49 PJ Huffstutter, EPA Sues MotorScience Inc. Over Emissions Documents. Los
Angeles Times, Sept 30, 2011
http://www.latimes.com/business
/la-fi-motorscience-20110930,0,49418.story
(MotorScience Inc. and its founder, Chi Zheng filed paperwork with the
agency stating that recreational vehicles and engines "meet or exceed the
minimum requirements" for federal air-quality-control emissions)
Note: For ATV, see, all-terrain vehicle
http://en.wikipedia.org/wiki/All-terrain_vehicle
(2) Barbara Demick, Chin... 阅读全帖 |
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N***Y
发帖数: 19 | 50 【 以下文字转载自 Military 讨论区 】
发信人: NYBOY (阳光帅男), 信区: Military
标 题: New York Times: Thousands Chip In to Help Artist Pay Fine
发信站: BBS 未名空间站 (Sun Nov 6 13:48:00 2011, 美东)
BEIJING — In the days since the Chinese government delivered a punitive $2.
4 million tax bill to the artist Ai Weiwei, thousands of people have
responded by donating money in a gesture that is at once benevolent and
subversive.
More than 20,000 people have together contributed more than $550,000 since
last Tuesday, when tax offici... 阅读全帖 |
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