E***e
发帖数: 3430 | 1 【 以下文字转载自 GPGPU_HC 俱乐部 】
发信人: Echte (Liebe), 信区: GPGPU_HC
标 题: GTX 580在MATLAB上第一跑
发信站: BBS 未名空间站 (Mon Mar 3 20:48:27 2014, 美东)
3 asset (correlated) basket option (barrier)
3,000,000模拟路
2*252时间步
全双精度
用时31.850787秒
相对i-7-3770有5.3倍性能提升
感觉已经是相当不错
另外由于是basket
每个路径都涉及矩阵运算
所以没法写成elementwise的程序
估计至少丢了1/3的性能，比较遗憾
tic
R = gpuArray(3000000);
dt = gpuArray(1/252);
sqrtdt = sqrt(dt);
TTM = gpuArray(3);
T = gpuArray(TTM/dt);
N = gpuArray(3);
SLAG = gpuArray([100 100 100]');
SLAG = repmat(SLAG,[1 R]);
W = gpu... 阅读全帖 |
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z****e
发帖数: 54598 | 2 技术本身不应该存在有阵营这一说
把技术跟现实生活中其它人对立起来是有问题的
我从来不愿意禁锢于任何一个方面
我总是尽可能在不同方面去汲取营养
对于我来说，有人免费给我产品，让我去使用
这就是降低了门槛，做其它行业，要搞硬件产品，得有钱去建工厂才行
这就是entry barrier，软件的entry barrier已经够低了
如果靠db之类的收费，那只会提高entry barrier，就像我说的
如果我没有钱去买db，去买tomcat，我的创业要等到什么时候？
我的理论结合实际要等到我儿子才能帮我实现？我看多半是我永远都实现不了
因为我一个人的能力有限，没有开源的人帮我做事，我永远做不了这个网站
就算我很聪明，我也不可能写出那么好的代码，用那么多时间去测试
用那么多精力去修复bug，更不要说一旦用户群大了之后我要重构那还不是要了我的命
我觉得这样好，就是不让某些人借机剥削其他人，搞得牛逼哄哄的少了谁地球不转一样
一个经济体要有更新换代才有活力
老是想着做过去别人已经做过的事只会让自己永远地丧失机会
在java诞生的时候，他们可没有说os和c＋＋已经写得如此之好，所以他们没有机会
理论上用... 阅读全帖 |
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m*****e
发帖数: 4193 | 3
Because the compiler does not have the concept of concurrency, it thinks the
two instructions for thread1 are independent and thus it's free to re-order
them. So you need a compiler-barrier between them to avoid this kind of re-
ordering.
Is
And there are things like this on the CPU level that the changes to memory
are not visible in the same order too. You'd need memory-barriers (including
read, write and full barriers) to avoid it.
So if you don't want locks, then you can do:
Thread 1
count = |
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l********f
发帖数: 149 | 4 来自主题: Programming版 - 问题一枚 Basically, ur runnable3 is blocked by Callable.Get(), and ur Callalbe thread
is not released by barrier until runnable3 is done. It's a deadlock
scenario.
"A CyclicBarrier supports an optional Runnable command that is run once per
barrier point, after the last thread in the party arrives, but BEFORE ANY
THREADS ARE RELEASED. This barrier action is useful for updating shared-
state before any of the parties continue. " |
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g*****g
发帖数: 34805 | 5 你这贴怎么闻着都是学术界对大数据在工业界做出来这事的酸味呢？
1.大只是个方法论的概念。通过MR一类的框架，原来处理不了的现在处理得了，或者要
处理一周的现在处理一天就够，哪怕数据量只有T级，也是显然的获益。大只不过是个
相对概念，原来处理不了这样的数据了，为了在可以接受的时间内处理了，就只能采集
的时候做sampling，相对数据量就小。
2.这显然不是提高barrier of entry，而是显著降低了barrier of entry。以前那些做
网格计算的大机器，机器非常贵，能写并行算法的人很少，要有人维护机器，一个开发
周期很长。现在Amazon EMR，起一千个机器跑一跑就是分分钟的事情，你还可以半夜便
宜的时候去跑，好多小公司就这么干。写ETL算法的人往往不是CS出身的，也完全不需
要有能力写并行算法。凡事一旦做到PaaS，SaaS，基本上就是barrier of entry降低到
了极致。
3.互联网业往往营业额高，纯利低。典型的如马鬃，以及初创公司。1%的优化带来的可
能是数以亿计的纯利。这就是互联网公司愿意雇一堆Data Scientist不停地改进算法A/
B te... 阅读全帖 |
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T********i
发帖数: 2416 | 6 所以我说你对barrier没完全理解也没错呀？
shared_ptr用的是atomic指令，也只能用atomic指令。atomic指令就是barrier。这些
都没错。
但是barrier不一定是atomic指令。 |
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r***s
发帖数: 737 | 7 All "lock free" concurrency are implemented using atomic instructions
such as compare and swap, which use memory barrier to ensure safety.
It is non-sensible that you use lock free concurrency without
understanding memory barrier. Even if you get this one right you would
make other serious mistakes somewhere else.
Usually compilers won't allocate registers across instructions that
carries memory barrier behavior. However sometimes compiler may get
confused because of programmer's mistake. For ex... 阅读全帖 |
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b***i
发帖数: 3043 | 8 我觉得不是memory barrier的问题。memory barrier前面有很多人提过，就是会防止打
乱次序。可是我代码里面设置quit=true;的语句前后没有其他代码。总不能把if的条件
和结果给打乱了吧？
UI回叫
void UIcallback(...){
quit=true;//这里没有任何其他语句
}
或者TCP处理的回叫
void TCPcallback(...){
...A
if (字符串=="QUIT")
quit=true;//这里没有任何其他语句
else
...B
...C
}
有个if在那里总不能把...A和quit=true;交换顺序吧？在这里即使有A/C这两个语句，
也是和quit=true互斥的，就是说我不可能在线程需要退出了还要继续进行其他的操作
。如果有人问那一定要进行其他的操作怎么办，比如释放资源。办法很简单，在线程的
while结束后操作。所以我说很多人引经据典都是对普通的情况的建议。对我这种具体
的情况，就一个bool,所以不需要critical section，就一... 阅读全帖 |
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G*****h
发帖数: 320 | 9 拒绝拒稿的信件的通用样板，转发给各位做参考。
Feature Christmas 2015: The Publication Game
Rejection of rejection: a novel approach to overcoming barriers to
publication
BMJ 2015; 351 doi: http://dx.doi.org/10.1136/bmj.h6326 (Published 14 December 2015)
Cite this as: BMJ 2015;351:h6326
http://www.bmj.com/content/351/bmj.h6326
Cath Chapman, senior research fellow1, Tim Slade, associate professor1
Author affiliations
1NHMRC Centre of Research Excellence in Mental Health and Substance Use,
National Drug and Alcohol Resea... 阅读全帖 |
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p*******n
发帖数: 273 | 10 mynode 是 node的identifier
numprocs 是node的总数.
在开始的串行程序中, loop按照i循环 100次
现在我想把loop循环简单的分拆开来. 但是有个balance的问题. 如果 node 数目不能
被100整除, 就会出问题.
循环中的barrier 还是要的. 每次循环主节点要读一些数据,然后bcast给所有的nodes.
但是好像和循环外面的barrier冲突了,成了deadlock了. 不知道这种情况怎么解决.
多谢拉
codes.
Barrier |
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k*********g
发帖数: 791 | 11 1 功能
c++什么都能做，早期fortran只能做数值计算，现在能做非数值的东西，但还是远没有
c++完备；
其实，fortran77是个好东西：专项、简单；从fortran90开始，哲学出了问题；
2 软件开发
c++是开发软件的最好语言，很大程度是因为它的“面向对象”的特点，其实就是“鼓
励”、“帮助”庞大的程序群的“创造”、“管理”；
用fortran写软件，不仅仅有些功能（如，对计算机软硬件的操作）没法办，而且整个
软件会被管理得一塌糊涂；用c++，10个人1年就能搞定的东西，if用frotran，同样10
个人估计需要5年；
3 软件工程
即便不是做软件，而是写个1万行数量级的程序，c++也因为promotes优良的编程习惯而
战胜fortran；
4 super c
如果没有那么多的“object”，不需要++，那么可以不用c++的那些oop东西，把它当作
一个改进的c，有人称之super c，来用；这样，c++和fortran都是command oriented的
结构化语言； 用super c 写的程序，将来能比较迅速地upgrade成软件，if fortran，
得... 阅读全帖 |
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i****y
发帖数: 5184 | 12 没办法，这也是事实，而且越早知道越好，你是不能只看那若干年后成功者的光鲜的。
基本上你要仔细考虑的是：你自己走这条路能够成功的可能性，然后比较投入，再决定
值不值的。另外，还要考虑是你是否真的有兴趣，只为钱来投法律，多半也是要失望的。
这条路是可以走得，有前人经验了，大家都可以看到，但这条路肯定是不好走的，如果
好走，你会看到做法律的中国人多过IT。Barrier是双刃的，在你build barrier的时候
，你自然很幸苦，然后一旦你有了这个barrier，别人要取代你也同样的幸苦。 |
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n**x
发帖数: 6 | 13 1. for the first question, I think fleurgarcon's answer is absolutely right.
2. for the second, I also think the price should be S0-K. We can proceed by
replicating the payoff of the barrier using vanilla calls and puts. If the
stock price is always higher than the barrier B (or K because B=K) during
the lifetime of the option, then it is a vanilla call struck at K. But if
the stock price once touches the barrier, the option should become zero in
value. Thus in our replicating portfolio we can j |
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I*M
发帖数: 1533 | 14 抛砖引玉
3。Suppose that we believe that there are similarities between the
implementation of a barrier pricing engine and a convertible bond (assume
that the convertible contains early exercise and that the barriers &
convertible barriers are not constant in time):
a) What numerical method would you propose ?
FDM,
b) Give an object orientated overview of how code could be shared between
the models, with some description on the inputs and outputs to the model.
define Asset as a class，apply inheritanc |
|
i**w
发帖数: 71 | 15 背景:fresh physics PhD
还没offer,但年前基本上不会再折腾了。
有重复。基本上都是很标准的题。
简单的题如果人家想问倒你也是很容易的。
面试书recruiter推荐
1) Mark Joshi: "Quant Job Interviews: Questions and Answers". I have
heard very good things about this book.
2) Xinfeng Zhou, "A Practical Guide to Quantitative Finance Interviews"
个人觉得非常有用， 大部分问题都在这两本上。
算法，C++, stochastic calculus 就看比较标准的几本。
- sqrt(i)=?
- You and me roll a dice,first one gets a six wins. You roll first. what
is the probability of you winning?
- A stair of n steps. Each time you st... 阅读全帖 |
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w**********y
发帖数: 1691 | 16 多谢分享.大概做了做..欢迎补充和指正.
- sqrt(i)=?
e^{\pi/4 i} or - e^{\pi/4 i}
- You and me roll a dice,first one gets a six wins. You roll first. what
is the probability of you winning?
P(I win) = P(Y !win and I win) = 6/11
- A stair of n steps. Each time you step up 1 or 2 steps. How many
different ways are there to reach the top? what is the asymptotic limit?
Fibonacci sequence ..limF(n)/F(n-1)==x for n>2, solve x, and F(n) ~ x^{n-1}
- Moment generating function of standard model.
statistic book…
- Write a si... 阅读全帖 |
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t*******y
发帖数: 637 | 17 第二题应该是6/11吧
能讲讲这个吗? - X1 and X2 are independent random variable with pdf f and g.
what is what is the pdf of X=X1+X2
Jacobian matrix for X1+X2 and X1-X2..
多谢分享.大概做了做..欢迎补充和指正.
- sqrt(i)=?
e^{\pi/4 i} or - e^{\pi/4 i}
- You and me roll a dice,first one gets a six wins. You roll first. what
is the probability of you winning?
P(I win) = P(Y !win and I win) = 5/6*1/6
- A stair of n steps. Each time you step up 1 or 2 steps. How many
different ways are there to reach the top? what is the asymptotic... 阅读全帖 |
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s*****i
发帖数: 121 | 18 1.three variables, x, y, z, correlation coefficients are 0.9, 0.7, 0.2, is
it possible? Why?
2. One brownian motion on [0, 1], there is a barrier at 1, what's the
probability that hit the barrier? it takes how long to reach the barrier?
2的答案给的是http://www.puc-rio.br/marco.ind/hittingt.html，但是我看不懂。
Thanks |
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w******n
发帖数: 645 | 19 Did you get the point?
The point is your replication by longing put and shorting call gives wrong
answer. The PDE approach above gives correct risk neutral price.
The original question is asking the risk neutral price of a barrier option,
not asking anything about bid/ask. Once people can get the price, people can
always set up a bid/ask spread according to his/her risk aversion.
Actually, the original question didn't give volatility of the stock price.
The final answer P(0,50)-1/2P(0,200) depen... 阅读全帖 |
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w******n
发帖数: 645 | 20 Well, if you remember the above PDE approach and can name the method and
give the steps in interview, you definitely get full credits. If in case you
don't know this method, you can just think as below.
Since the barrier is simply set at strike, B=K, so when S hit B, the option
also immediately becomes at-the-money. On the other hand, the current stock
price is 50, it's deep in money. So, if we assume the stock volatility is
low and time to maturity is not too long, then the probability that bar... 阅读全帖 |
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n******m
发帖数: 169 | 21 能不能这样
A = up and out put
B = put - call
senario 1: barrier not hit, end up below 100. payoff(A) = payoff(B)
senario 2: barrier hit, end up belwo 100. payoff(A)=0, payoff(B)=K-S
senario 3: barrier hit, end up above 100. payoff(A)=0, payoff(B)=S-K
注意到senario2和3的对称性，B 的价值应该跟A一样。
然后parity, 价值是100-50=50 |
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g****n
发帖数: 6 | 22 why? what is the solution to the question?
hard to understand why it is the case p = K-S_t.
it is a good way to explain. But it is not true.
Because prob( senario 2 ) is not equal to prob(senario 3).
prob(senario 3) = N( d_1)
d_1 = [ log( S_t/ S_t) + (r+ 1/2*vol^2) T ] / [ vol * sqrt( T) ]
= [ 0 + 0 + 1/2*vol^2 T ] / [ vol * sqrt( T) ]
= 1/2 vol * sqrt( T) >0
prob(senario 3) = N( d_1) > 1/2
but prob(senario 2) = 1 - N( d_1) < 1/2
发信人: nevergum (em), 信区: Quant
标 题: Re: 问道题目
发信站: BBS 未名... 阅读全帖 |
|
g****n
发帖数: 6 | 23 why? what is the solution to the question?
hard to understand why it is the case p = K-S_t.
it is a good way to explain. But it is not true.
Because prob( senario 2 ) is not equal to prob(senario 3).
prob(senario 3) = N( d_1)
d_1 = [ log( S_t/ S_t) + (r+ 1/2*vol^2) T ] / [ vol * sqrt( T) ]
= [ 0 + 0 + 1/2*vol^2 T ] / [ vol * sqrt( T) ]
= 1/2 vol * sqrt( T) >0
prob(senario 3) = N( d_1) > 1/2
but prob(senario 2) = 1 - N( d_1) < 1/2
发信人: nevergum (em), 信区: Quant
标 题: Re: 问道题目
发信站: BBS 未名... 阅读全帖 |
|
w**********5
发帖数: 1741 | 24 1. Replicate an “Easygoing Double No-Touch Option” given four barriers A,
B, C, and D.
----------------|-----------------|-------------|------------|--------------
----|--------->
A B S(now) C
D
An Easygoing Double No-Touch knocks out after the second barrier is touched
or crossed. You may use barrier and/or touch options. S(now) is the current
spot. State your assumptions.
2. Replicate a Double No Touch using a por... 阅读全帖 |
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f**d
发帖数: 768 | 25 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
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z*******n
发帖数: 1034 | 26 By Simon Hill July 24, 2014
You could be forgiven for not knowing the name ARM, but you probably should.
It was founded in 1990, the same year that the World Wide Web was born, and
it’s the world’s leading supplier of semiconductor IP, licensing
processor technology and software tools to companies big and small.
You can find ARM technology in everything from digital cameras to car
braking systems to digital set top boxes, not to mention 95% of the
smartphones in the world today. This British mul... 阅读全帖 |
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d******8
发帖数: 1972 | 27 好像没有什么影响。
http://finance.yahoo.com/news/amarin-reports-first-quarter-2012
BEDMINSTER, N.J., and DUBLIN, Ireland, May 8, 2012 (GLOBE NEWSWIRE) --
Amarin Corporation plc (Nasdaq:AMRN - News), a late-stage biopharmaceutical
company focused on cardiovascular disease, today announced financial results
for the quarter ended March 31, 2012 and provided an update on company
operations.
Amarin noted the following highlights since the quarter ended December 31,
2011:
Received Notice of Allowance for paten... 阅读全帖 |
|
c*****l
发帖数: 61 | 28 zhuantie
很多非专业人士可能认为：膀胱不能排尿，可能不是一个大不了的问题（或者疾病）。
其实膀胱这是一个很常见，并且很费钱，很痛苦的疾病。这是因为排尿是一个复杂的反
射过程。一般的排尿障碍主要是脊髓损伤导致。但是脊髓损伤确非常常见(neurogenic
bladder)。胚胎／先天发育异常(spina bifida脊柱裂），脊髓创伤（比如车祸、战争
中的枪伤或者爆炸伤、事故（比如跳楼、攀岩掉落）、暴力事件（刀具等的损伤）、医
疗相关（腹部手术，这种情况排尿困难只是暂时的），脊髓肿瘤，脊髓结核病等等。著
名人物有脊髓创伤的有：汪精卫，演“超人”的演员。
膀胱(urinary bladder, which is different gall bladder)是一个很容易出问题的器
官（neurogenic bladder, infection/UTI, 先天发育异常，膀胱结石，膀胱结核，膀
胱癌，维生素A缺乏会导致膀胱问题，糖尿病也会影响膀胱，在非洲和中东还有膀胱的
寄生虫疾病），但是确实是一个被忽视的器官。很多Biomedical科学家clone了一个新
基因（gene)，他们中... 阅读全帖 |
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M*****e
发帖数: 279 | 29 我在Biology版说过和LZ类似的话（http://www.mitbbs.com/article0/Biology/31414639_0.html），也遭到围攻，但是视而不见Journal of Urology的Editor也说过同样的话。
The editor (Eric A. Kurzrock) said,"... I congratulate the authors for taking
on this challenge. I hope this study leads to a ribirth or refocus
regarding neurosurgical treatments of neuropathic bowel and bladder. I
strongly agree with the authors that this procedure should remain on a
research protocol only."
The above is what the editor's comment about a paper published rec... 阅读全帖 |
|
g******t
发帖数: 18158 | 30 http://en.wikipedia.org/wiki/Barrier_troops
Barrier troops, blocking units, or anti-retreat forces are formations of
armed soldiers normally placed behind regular troops on a battle line to
prevent panic or unauthorized withdrawal or retreat. Barrier troops may be
utilized simply to raise the morale of frontline troops and for the purpose
of constituting a reserve force, or they may be used to prevent unauthorized
withdrawal of soldiers from the battlefield by any means, including
indiscriminate |
|
g******t
发帖数: 18158 | 31
昨天我冒昧地给真正的专家 Glantz 发了 email 求证这件事
Dear Professor Glantz
May I ask a question about Soviet Military History? I enjoy reading
historical books, I got a question after I watched the movie “Enemy at the
Gates”, in that movie, the Soviet Red Army had barrier troops in the rear
of the ordinary combat troops, the officers and soldiers in the barrier
troops did not hesitate to use machine guns to shoot down ordinary soldiers
retreating without order in the combats. That looked impressive and hard to
b... 阅读全帖 |
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T*******x
发帖数: 8565 | 32 【 以下文字转载自 Biology 讨论区 】
发信人: verdelite (石头), 信区: Biology
标 题: 混血鸟在学习和记忆上有显著缺陷(要转军版吗？)
发信站: BBS 未名空间站 (Thu Dec 14 11:56:14 2017, 美东)
"Hybrid Songbirds are Deficient in Learning and Memory"
https://www.biorxiv.org/content/early/2017/11/30/227298
Abstract
Identifying the phenotypes underlying postzygotic reproductive isolation is
crucial for fully understanding the evolution and maintenance of species.
One potential postzygotic isolating barrier that has not yet been examined
is learning and memor... 阅读全帖 |
|
O**n
发帖数: 649 | 33 为人民服务是为那一国的人民服务呢？ 请见
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1643986
Transparent Authoritarianism?: An Analysis of Political and Economic
Barriers to Greater Government Transparency in China
Peter L. Lorentzen
University of California, Berkeley
Pierre F. Landry
Department of Political Science, Yale University
John K. Yasuda
University of California, Berkeley
September 04, 2010
APSA 2010 Annual Meeting Paper
Abstract:
In recent years, the Chinese Communist Party has experimented wi... 阅读全帖 |
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d******a
发帖数: 32122 | 34 这帮人声称保护自己的隐私，照样和其他人共餐
同时散布乙肝和性病艾滋一样，洁身自好就不会感染的谣言
实在是猥琐
关于乙肝病毒常见的10个谣言2009年12月30日 21:56千龙网【大 中 小】 【打印】 共
有评论15条1，“世界卫生组织说乙肝只有三个传染途径”
【事实】原话是说有三个“主要”传染途径，同时WHO也承认有35%的感染病例传染源传
染途径未明，即不能用parenteral、sexual和perinatal解释。
2a，“乙肝不是消化道传染疾病，因此不通过消化道传染”
2b，“共餐不会传播乙肝”
2c，“乙肝只通过血液传染”
【事实】一起吃饭一般情况下不会传染乙肝。这样说主要是要区分乙肝和甲肝的传染途
径。甲肝是消化道传染疾病，可以通过食物和水传染，也就是说，被甲肝病毒污染的食
物和水，进入完好没有破损的消化道仍可引起传染。乙肝就不一样，被乙肝病毒污染的
食物，进入完好没有破损的消化道是不会引起传染的，所以乙肝不是消化道传染疾病。
不过，被乙肝病毒污染的食物，进入有粘膜破损的消化道是会引起传染的。而且要是携
带者和易感者都有口腔溃疡的话，被血液污染的唾液进入破损的口腔消化... 阅读全帖 |
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c**i
发帖数: 6973 | 35 Saurave Jha, Vietnam, India Boost Naval Ties to Counter China. World
Politics Review, July 29, 2011
http://www.worldpoliticsreview.com/articles
/9630/vietnam-india-boost-naval-ties-to-counter-china
(You will have to google the title to read the article, rather than click the link.)
Quote:
"In a move that had been in the offing for some time, India appears to have
finally greenlighted long-term basing for it ships at Na Thrang * * * The
offer on Na Thrang was reiterated by the Vietnamese Chief of... 阅读全帖 |
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w*********g
发帖数: 30882 | 36 Dear General Secretary Xi:
Congratulations on your elevation to the top post in China. If economic and
strategic trends continue, you will lead China to an unprecedented peak in
power and influence in the world.
Indeed, if your tenure extends two terms, until 2023, your country is
expected to produce a gross domestic product of $40 trillion, 60 percent
larger than the United States. Your middle class is expected to swell to a
billion people, more than the combined populations of the US, Japan, C... 阅读全帖 |
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x****u
发帖数: 12955 | 37
Putting up legal or procedure barriers doesn't curb illegal gun ownership,
and it doesn't do a very good job of filtering out ordinary looking nut
cases.
On the other hand, money is a natural barrier for nut cases and losers,
since they probably can't nail down a good paying job. While the people who
are financially in good shape usually also means they fit in society pretty
well.
You can make guns expensive by taxation. And so what if gun makers make
some more money? The key is to keep guns... 阅读全帖 |
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s*****r
发帖数: 11545 | 38 This guy used "then" twice.
To some extent I agree with him. Education is not wisdom.
However, wisdom is not innovation either. What is more, education and wisdom
are not mutually excluded. Can you imagine a person with a lot of wisdom
can't even get the simplest calculation straight? On the other hand,
without enough education, how innovative can a person be? How can you create
a useful device without the basic math and physics or chemistry skill? You
might have wisdom for a big idea, but how... 阅读全帖 |
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s******g
发帖数: 466 | 39 CHINA - In early September, US scientists came to China to explore ways to
prevent the spread of Asian carp in their country and to explore the
possibility of exporting the invaders back to China.
"Chinese love eating the fish, and the US has too many of them, which makes
exploring a business plan a win-win solution," said Yang Bo, a freshwater
expert from The Nature Conservancy who accompanied the US scientists during
their visit. Yang made her remarks in an interview with China Daily on
Monday... 阅读全帖 |
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s******g
发帖数: 466 | 40 Before and after pictures of a carp dish from Tianjin
American fish experts visited China in early September to seek a solution to
the proliferation of Asian carp in the United States. The fish is
considered a delicacy in China but is posing a threat to native fish and
clam species.
The proliferation has been widely discussed by Chinese internet users who
joked that the US government could save money on a planned dam to stop the
fish from reaching the Great Lakes if they just paid Chinese tour g... 阅读全帖 |
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M******r
发帖数: 120 | 41 http://www.lifelisted.com/blog/happens-everything-goes-right/
So Why Won’t You Be Returning?
I would describe my time living in Singapore as sterile. Nothing
particularly bad happened, but it wasn’t particularly good either. Daily
life was convenient, but it was only the bare minimum of living. I had
everything I needed to be comfortable, but I didn’t have anything that
inspired me. Even though there wasn’t a language barrier, I encountered a
hefty communication barrier. In my experience, people... 阅读全帖 |
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S*****n
发帖数: 4185 | 42 Since China entered the World Trade Organization in 2001, the massive growth
of trade between China and the United States has had a dramatic and
negative effect on U.S. workers and the domestic economy. Specifically, a
growing U.S. goods trade deficit with China has the United States piling up
foreign debt, losing export capacity, and losing jobs, especially in the
vital but under-siege manufacturing sector. Growth in the U.S. goods trade
deficit with China between 2001 and 2013 eliminated or di... 阅读全帖 |
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m**********e
发帖数: 12525 | 43 因为人脑有复杂Blood–brain barrier,药物无法进入,凡是Blood–brain barrier
里面的感染性疾病,基本上都是死路一条 |
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S**C
发帖数: 2964 | 44 Given the existing global and regional trade barriers are pretty low,
marginally barrier reduction, what's the matter? |
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l****p
发帖数: 27354 | 45 http://www.counterpunch.org/2016/02/26/hillary-clintons-speech-
以下是希拉里首次到高盛的演讲，泄露版，2013年6月4日。另外两个演讲也传言是流通
中等待出版。这是完整记录。克林顿国务卿收到22.5万美元，因为这一讲话。讲话还没
有得到证实或认证。
克林顿：谢谢。非常感谢。非常感谢你，劳埃德[布兰克费恩]，并感谢大家在高盛今天
欢迎我。我很高兴能够回到朋友，同事，合作者，支持者，志趣相投者之间。
请允许我开门见山的说话。你知道，在过去的几个月中，已经出现了越来越流行的关注
，说我们的经济仍不能给广大美国人提供益处。这“提供”其实只是不是他们觉得应该
的方式。你们所对话的大多数美国人，都有民粹主义的论调，声称经济复苏的好处仅仅
停留在那些在社会最顶部的人，你们这些人其实过的太美好了。
（笑声）
但我们知道，屁民们对他们的未来的希望 - 比如上学，就业，食品，服装-所有这些小
事不可能没有你们的领导和创新。自从梅迪西斯时代，甚至更早，在第一个股份制公司
在跨大西洋奴隶贸易的融资的时候，我们知道，金融和银行业是真正的力量促使我们... 阅读全帖 |
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c*******o
发帖数: 8869 | 46 共和党纲显然对中国比较偏爱，提及16次，居然连中国稀土都在内,还有电磁战和网络
用语“关岛杀手”。列举如下：
https://prod-static-ngop-pbl.s3.amazonaws.com/media/documents/DRAFT_12_FINAL
[1]-ben_1468872234.pdf
关于台湾西藏新疆香港
1． If China were to violate those principles, the United States, in
accord with the Taiwan Relations Act, will help Taiwan defend itself. We
praise efforts by the new government in Taipei to continue constructive
relations across the Taiwan Strait and call on China to reciprocate.
2． Meanwhile, cultural genocide continues in T... 阅读全帖 |
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b****s
发帖数: 872 | 48 没准和隐形飞机一样，barrier被涂了什么雷达吸收材料，所以看着barrier才是畅通的路
马路反而折射更多雷达，雷达看着像障碍，所以转向。
我老的2 cents |
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z******i
发帖数: 986 | 49 这周末trump发了两个帖子。 先是在周六一早，发下面这么个帖子，
Donald J. Trump
@realDonaldTrump
The United States hasn’t had a Trade Surplus with China in 40 years. They
must end unfair trade, take down barriers and charge only Reciprocal Tariffs
. The U.S. is losing $500 Billion a year, and has been losing Billions of
Dollars for decades. Cannot continue!
http://twitter.com/realDonaldTrump
这帖子的意思是说： 中国对美国的贸易顺差有40年了。 他们必须终止这一不公平的贸
易，取消壁垒，只收取互惠关税。 美国每年损失5000亿美元，同时损失了数以亿计的
美元在过去的几十年间。 （这种状况）不可以继续下去！
很明显，trump对中美之间的贸易逆差和知识产权损失... 阅读全帖 |
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