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j**********g
发帖数: 14
1
我去年开始炒股,开始也是buy-and-hold。由于想着赚大钱,一直是交易option,刚开
始还是swing trade,有赚有亏,整体是亏的,投入的8K变成5K多。
认识到应该更进一步降低风险,于是stop loss更小,变成day trade了,于是转到IB上
,并再投入26K(可怜所有的积蓄都在里面了)。于是进行option daytrade。
此后开始consistent loss(不论牛熊市)。中间买了很多书来学习,看到书上说安全点
是买break out,试了好多次,亏了不少(现在想来错误有二:1。追涨,2。stop loss
太小),总是找不到原因所在。中间有两天暴涨,账户一度到达40K。于是更坚定了买b
reak out的想法。此后仓位加大,一直买break out,最后终于亏得只有30K左右了。
有一天突然觉悟了一点,原来option daytrade本来就对我不利,spread太大,再加上我
的小stop loss和因此而产生的over trade,其实是不可能赢的。
此后开始stock daytrade。果然,损失小了很多,但依然是consistent los... 阅读全帖
w**k
发帖数: 6722
2
今天FOMC还是没有加息,但是那个所谓的价值万金的耐心一词也不见了
再征询一下大家对REITs的看法
看下面的内容,有一点很迷惑我:Business fixed investment is advancing, while
the recovery in the housing sector remains slow and export growth has
weakened.
难道housing sector remains slow吗?我怎么有种房市很不错的感觉
下面是今天发布的内容
Release Date: March 18, 2015
For immediate release
Information received since the Federal Open Market Committee met in January
suggests that economic growth has moderated somewhat. Labor market
conditions have improved further, with strong job gains an... 阅读全帖
w**k
发帖数: 6722
3
来自主题: Stock版 - Fed有句话我不是很理解
看下面的内容,有一点很迷惑我:Business fixed investment is advancing, while
the recovery in the housing sector remains slow and export growth has
weakened.
难道housing sector remains slow吗?我怎么有种房市很不错的感觉
房市要是不怎么样,我就把我手上的REITs卖了算了
下面是发布的内容
Release Date: March 18, 2015
For immediate release
Information received since the Federal Open Market Committee met in January
suggests that economic growth has moderated somewhat. Labor market
conditions have improved further, with strong job gains and a lower
unemployment rate... 阅读全帖
l********0
发帖数: 229
4
来自主题: Stock版 - THLD是不是真要被买啦?
去年三月,THLD SEC file了confidential treatment:
Threshold Pharmaceuticals, Inc. submitted an application under Rule 24b-2
requesting confidential treatment for information it excluded from the
Exhibits to a Form 10-K filed on March 6, 2014
根据专家分析,做这种事情一般两个原因,一是掩盖肮脏账目,通常半年后被
delisting (40%),二是,被收购 (60%)。(Pg20)
http://www1.villanova.edu/content/dam/villanova/VSB/assets/marc
今年他们,又做了不同寻常的事。他们高层的stock option,居然可以两个月之内兑现
。通常每年的option都是要分四年兑现,这是不是意味他们有可能两个月之后被买?
http://stocknewsflow.com/1183765_00011931251... 阅读全帖
k****m
发帖数: 4670
5
http://www.contracostatimes.com/news/ci_25505077/affirmative-ac
另一篇文章下的评论
disqcoduck •a day ago
Affirmative action is about equality of opportunity, equal access, fair
treatment. Certain groups have perverted AA to mean equality of outcome,
special access, preferential treatment.
Asian-American fully support Affirmative Action. Asian-American do not
support preference, unfair treatment. SCA5 is all about re-injecting race as
a special preference when it comes to college admission. SCA5 see... 阅读全帖
V*****n
发帖数: 893
6
来自主题: Cycling版 - 第一次Group Ride求建议
Version 9.1 1
Riding the Paceline
Prologue
A pace line is a group of riders who trade off the lead to share the effort
of riding in front so that the other
riders can rest in the draft that is created. Some of the benefits of a
paceline are safety, efficiency, and
speed. Pacelines that lack discipline can be annoying and even dangerous.
Stage One - Basics
Group Interaction
Individual energy contributes to the group energy. How an individual
interacts with the group is important
and can have an i... 阅读全帖
B****2
发帖数: 8892
7
http://www.forbes.com/pictures/emdm45efmkf/college-footballs-mo
1. Texas Longhorns
2. Notre Dame Fighting Irish
3. Alabama Crimson Tide
4. LSU Tigers
5. Michigan Wolverines
6. Florida Gators
7. Oklahoma Sooners
8. Georgia Bulldogs
9. Ohio State Buckeyes
10. Nebraska Cornhuskers
11. Auburn Tigers
12. Arkansas Razorbacks
13. USC Trojans
14. Texas A&M Aggies
15. Penn State Nittany Lions
16. Wisconsin Badgers
17. Washington Huskies
18. South Carolina Gamecocks
19. Oregon Ducks
20. Tennessee Voluntee... 阅读全帖
g********s
发帖数: 82
8
来自主题: Fashion版 - ZZ:一个非常好的eye primer review
想找一个能帮助眼妆long lasting的primer, 然后发现了这个非常有用的review。
还有youtube版的。
http://www.beautybroadcast.net/2009/08/massive-shadow-primer-re
http://www.youtube.com/watch?v=y-Fmj5K67jg
#5 L'oreal De-Crease
COST: $7 (approx)
WHERE TO BUY: drugstore
PACKAGING: short-handled wand applicator
CONSISTENCY: creamy, turns dry
STAYING POWER: overall good, but occasional creasing
SHADOW INTENSITY: does not effortlessly make shadows appear more intense
#4 Bee Luscious Shadow Magnet in Light
CO... 阅读全帖
g****g
发帖数: 1828
9
来自主题: WaterWorld版 - Normal distribution
In probability theory, the normal (or Gaussian) distribution, is a
continuous probability distribution that is often used as a first
approximation to describe real-valued random variables that tend to cluster
around a single mean value. The graph of the associated probability density
function is “bell”-shaped, and is known as the Gaussian function or bell
curve:[nb 1]
f(x) = \tfrac{1}{\sqrt{2\pi\sigma^2}}\; e^{ -\frac{(x-\mu)^2}{2\sigma^2}
},
where parameter μ is the mean (location of the pe... 阅读全帖
p********3
发帖数: 5750
10
50, 70, 71; 大家注意一下和这几篇文献相关的话题。 另外, 73-75我本人没有看,确实是谈的印度药材, 我在查阅参考文献的时候在搜索Chinese Medicine的时候, 显示有这些文献,我本人没有亲自看这些文献, 也许其中有讲中药的地方。不过这不影响我要表达的意思。
慢慢看:
INTRODUCTION — Plants have been used for medicinal purposes for thousands
of years. All major cultures including Native American, European, South
American, Asian, and African cultures have used botanicals for healing
purposes. As an example, saw palmetto was used for urinary symptoms in men
from Egypt in the 15th century BC [1]. Hippocrates documented... 阅读全帖
C****i
发帖数: 1776
11
来自主题: TrustInJesus版 - 威斯敏斯德信条 导读
The Committee on Christian Education
of the Orthodox Presbyterian Church
THE
CONFESSION OF FAITH
AND CATECHISMS
The Westminster Confession of Faith and Catechisms
as adopted by
The Orthodox Presbyterian Church
WITH PROOF TEXTS? 2005 by The Orthodox Presbyterian Church
Published by and available from:
The Committee on Christian Education
of the Orthodox Presbyterian Church
607 N. Easton Road, Bldg. E
Box P
Willow Grove, PA 19090-0920
Phone 215/830-0900
Also available from:
Great Commission Public... 阅读全帖
a***y
发帖数: 19743
12
第二天,继续记录感觉好和感觉不好的地方。猪轮谷轮请轻拍。
感觉好的地方
1. 剪切板历史记录。很好。
2. 1GB的内存很大,818MB可用,内存里可以放很多程序。只要他们不怎么消耗电池,
这个我是无所谓。程序切换比较快。相比之下,iOS设备的内存一直较少。虽然iOS程序
和系统往往更流畅,但是物理限制决定驻留内存程序有限,程序切换的时候更多时候需
要程序重启。
混合感觉,有好有坏的地方
1. 四个按钮。
安猪的四个按键,是和iPhone操作最不同的地方之一。home的作用和iOS基本一样。
option键,隐藏了很多option,节约了界面空间,但是隐藏的话用户经常需要点击才能
查看我到底能干什么,也不是非常好。Consistency上,options有时候藏在里面,有时
候没有。确实不管是桌面还是移动操作系统,很少有做到人机交互高度consistent的,
除了苹果。
返回键,很多人喜欢,很多人不喜欢。有人认为是设计上的亮点,有人认为不是。我认
为有时候还不错,有时候也是缺乏consistency。用来在程序之间切换,比如从twitter
打开一个链接,自动用opera打开,然后按... 阅读全帖
p***c
发帖数: 5202
13
我来砸几砖
现在是个android电话都比iphone屏幕大,同样分辨率,感觉颗粒大一些,非常正常。
拿个1寸的屏幕给你看,肯定细腻了,有什么用?我现在用Dell streak,5"屏幕。随便
什么烂苹果送我都不要,我的苹果早卖了,家里其他人的iphone根本不屑用。
江湖中俗话:一寸长一寸强。。。上网,看电影,太爽了
那个option键非常方便,完全不是你说的,只是你不想去习惯它而已
“Consistency上,options有时候藏在里面,有时候没有。确实不管是桌面还是移动操
作系统,很少有做到人机交互高度consistent的,除了苹果。”
苹果一样,consistent都是app控制,有的app的settings要找半天,有的app的按钮位
置也不一样。。。苹果是consistent了,consistently难用。settings也好,返回键
也好,至少占屏幕上一行的空间,非常别扭
其实苹果最烂的是app不能共享目录,每个app一个document目录,多么多么多么脑残的
设计
p***o
发帖数: 1252
14
OK,我想我知道你那里不明白了。关于内存一致性,有两个层面。一是
cache coherence,这个保证任何一个内存位置在同一个系统中看起来
是一样的。这一条符合大多数人的直观想法,也确实是严格满足的。
第二个是memory consistency, 这个和不同内存位置的读写顺序有关。
大多数人的直观想法是这些读写存在一个全局的顺序,或者叫sequential
consistency。如果单机只有一个核,这没有问题,因为不管你有多少个
线程,每条指令是atomic的并且指令只能交错运行。问题是现在的单机
有多个核,你要实现sequential consistency的话对于系统速度影响
太大,这是不可接受的。所以你能买到的多核/多CPU系统全部--不满足--
sequential consistency, 也就是你直观上的想法。
至于它们满足什么memory consistency model,你只能去查手册,比如
Intel? 64 and IA-32 Architectures Software Developer’s Manual
Volume 3A: System Progr
h*i
发帖数: 3446
15
来自主题: Programming版 - 对分布式软件的Jepsen测试
丢数据不能说就是"consistent", 因为, 100% data loss = 100% guaranteed
consistency. 一般人理解的”consistency“不认为丢数据是可以接受的。
“Kafka’s replication claimed to be CA, but in the presence of a partition,
threw away an arbitrarily large volume of committed writes.”
在常人看来,这就是不consistent的,我写了,你也回我说写好了,结果数据没写进去
,这叫什么consistency? 按人的标准,这不是撒谎么?

is
s*******0
发帖数: 3461
16
来自主题: Actuary版 - 精算 偏 quantitative 办的是eb几
eg: this kind of position
quant insurance product pricing
VBA, C++ Variable Annuities Quantitative Analyst, Baltimore, fulltime $130-$
160k, immediate interview, k******[email protected] 800-331-1987
The Derivatives Analytics team is responsible for developing and maintaining
derivative pricing and hedging models to support the execution of our
global Variable Annuities hedging mandate. The team is also responsible for
developing advanced interest rate and asset models to ensure market
consistency in pri... 阅读全帖
s******9
发帖数: 283
17
来自主题: Biology版 - science的编辑抢稿
The peer review process at Science
http://www.publications.parliament.uk/pa/cm201011/cmselect/cmsc
1.Peer-reviewed scientific publications represent the primary useful archive
of scientific progress. Scientific publications have served other main
functions as well: They are a primary means of evaluating scientists and
institutions, and they have become a main pathway for informing the general
public about science, through coverage in the media and press releases (new
results are news). Peer-revi... 阅读全帖
v**********m
发帖数: 5516
18
来自主题: Biology版 - 联邦劳工统计局的报告
http://www.bls.gov/opub/mlr/2015/article/stem-crisis-or-stem-su
US Department of Labor
A to Z Index|FAQs|About BLS|
Contact Us
U.S. Bureau of Labor Statistics
Follow Us|What's New|Release Calendar|Site
Map
HomeSubjectsData ToolsPublicationsEconomic ReleasesStudentsBeta
HOMEARCHIVESFOR AUTHORSABOUT
ARTICLE
MAY 2015
STEM crisis or STEM surplus? Yes and yes
The last decade has seen considerable concern regarding a shortage of
science, technology, engineering, and mathematics (STEM) workers to meet ... 阅读全帖
i*******e
发帖数: 349
19
来自主题: Economics版 - 问个econometrics问题(包子贴)
my $0.02。
BLUE里面的U=unbiased,unbiasedness是个finite sample的概念,consistency是个
asymptotic的概念,两者没有必然关系。
计量教材里面有很多estimator在finite sample里面是biased但是consistent。另外一
方面,有的estimator是unbiased但是不consistent,例如我用样本里面的第一个观测
值X1作为sample mean的estimator,是unbiased,但通常不是consistent的,因为在样
本趋向无穷大时,lim( |X1-mean(x)|>epsilon )=常数,该常数一般不为0。
另外,WLS是不是BLUE或者consistent当然要看DGP的假设。
w*******o
发帖数: 6125
20
来自主题: _Stockcafeteria版 - 温故而知新: QE2的进化时间表 (转载)
【 以下文字转载自 Stock 讨论区 】
发信人: walstudio (午夜未眠人), 信区: Stock
标 题: 温故而知新: QE2的进化时间表
发信站: BBS 未名空间站 (Wed Jul 13 16:32:57 2011, 美东)
QE从来就不缺质疑的声音, 看看飞机南去年是怎么化蝶成功的
08/10/2010: Fed votes to avoid “perverse outcome”.
09/21/2010: The Confession.
10/01/2010: A Stalking Horse Speaks.
10/15/2010: Bernanke Removes Any Doubt.
11/03/2010: The Fed Announces “QE, The Sequel”
Full article:
---------------------------------------------------------
http://www.worldmarketmedia.com/779/section.aspx/2631/post/fed-
Earlie... 阅读全帖
y*****l
发帖数: 5997
21
来自主题: _pennystock版 - 半导体残了
盘后不是大涨了吗?还用分析啥?
我不会看报表,让红哥来吧。
看起来很不错,图也很牛。
SIMO你推荐了很多次都没买,可惜了。
神马都是浮云!
http://finance.yahoo.com/news/Silicon-Motion-Announces-pz-34337
Second Quarter 2011
Financial Highlights
Net sales increased 16% quarter-over-quarter to US$50.5 million from US$
43.4 million in 1Q11
Gross margin excluding stock-based compensation increased to 46.9% from
46.2% in 1Q11
Operating expenses excluding stock-based compensation, acquisition-
related charges, and other items decreased to US$13.1 million fr... 阅读全帖
l**i
发帖数: 8144
22
来自主题: Military版 - Anthropic principle
简单地讲 就是谋事在人 成事在天
认为社会发展沿着某个预定方向发展的理论 都是傻逼理论
--------------------------------------
Anthropic principle
From Wikipedia, the free encyclopedia
In astrophysics and cosmology, the anthropic principle is the philosophical
argument that observations of the physical Universe must be compatible with
the conscious life that observes it. Some proponents of the argument reason
that it explains why the Universe has the age and the fundamental physical
constants necessary to accommodate conscious life. As a ... 阅读全帖
x******g
发帖数: 33885
23
3. "The emancipation of labor demands the promotion of the instruments of
labor to the common property of society and the co-operative regulation of
the total labor, with a fair distribution of the proceeds of labor.
对于上面这段话,马克思作了如下的评点:
"Promotion of the instruments of labor to the common property" ought
obviously to read their "conversion into the common property"; but this is
only passing.
What are the "proceeds of labor"? The product of labor, or its value? And in
the latter case, is it the t... 阅读全帖
Y****N
发帖数: 8694
24
来自主题: Military版 - 我为尹希教授做的专访 (转载)
【 以下文字转载自 Faculty 讨论区 】
发信人: Highly (高妹), 信区: Faculty
标 题: 我为尹希教授做的专访
发信站: BBS 未名空间站 (Wed Sep 23 14:31:24 2015, 美东)
Interview with Dr. Xi Yin

--- By Fiona Rawsontile, Sept 2015
This interview was inspired by an earlier interview of Dr. Yin I saw on the
Internet, which made me think that we can’t expect someone who normally
writes for entertainment to understand a physicist. To “provoke” a
scientist, we need another scientist. So I volunt... 阅读全帖

发帖数: 1
25
来自主题: Military版 - 12月10日 可能的历史
Yarmouth Port, Massachusetts
From Wikipedia, the free encyclopedia
Yarmouth Port, Massachusetts
Census-designated place
Boardwalk at Bass Hole
Location in Barnstable County and the state ofMassachusetts.
Coordinates: 41°42′17″N 70°13′15″WCoordinates: 41°42′17″N 70°13′
15″W
Country United States
State Massachusetts
County Barnstable
Town Yarmouth
Area
• Total 6.47 sq mi (16.76 km2)
• Land 6.04 sq mi (15.65 km2)
• Water 0.43 sq mi (1.11 km2)
Elevation 52 f... 阅读全帖

发帖数: 1
26
来自主题: Military版 - 12月25日 圣诞节快乐!
在网上发现了一个圣诞节商店,商店的建筑很有特色,而且遍布全美国,大概有70多个
店铺,以后大家买圣诞节用品可以去那里,似乎各州都有。我们这里和麻州的地址是:
CHRISTMAS TREE SHOP AUGUSTA, GA, 239 ROBERT C. DANIEL JR. PARKWAY,
AUGUSTA EXCHANGE, AUGUSTA, GA 30909, 706.738.0570, CHRISTMAS TREE SHOP
, MAGNOLIA PARK, 1117 WOODRUFF ROAD, GREENVILLE, SC 29607. 864. 297.
3667
CHRISTMAS TREE SHOPS NATICK, 1298 WORCESTER ST. ROUTE 9, SHERWOOD
PLAZA, NATICK, MA 01760, 508.655.9800
CHRISTMAS TREE SHOPS SOMERVILLE, 177 MIDDLESEX AVENUE, ASSEMBLY SQUARE
... 阅读全帖
C*I
发帖数: 4736
27
一直在误导,现在还在误导。 说说明corona virus 不可以从蝙蝠直接传染给人,必须
经过一个中间宿体性的其它动物才能传染给人。所以,病毒发生后,就故意误导全国人
民去海鲜市场找证据,找其它野生动物的麻烦。 而且还是病毒所去找的,找完了还装
模做样化验呀,分离呀什么的。最后把责任全部推给了海鲜市场的动物。可是那种动物
,一直不敢说,说了其它相关已经在人就会去早那种动物监测。 所以压根不说,打马
虎眼。
事实上,早在2013 年,就是这个武汉病毒研究所,已经从来自云南的蝙蝠身上所携带
的corona virus中分离出第一株蝙蝠SARS类似样的冠状病毒的活病毒,其中就包含了类
似于S类型的基因。从而证实这株病毒能够使其接受和SARS病毒相同的受体,并能够感
染人的细胞。对此新发现,武汉病毒所还把它以武汉病毒研究所的英文简称命名“WIV1
”,以彰显这一发现的重要价值和属于自己第一个发现的巨大研究成果。这个成果刊载
于2013年11月的《自然》杂志。
就是说,从云南弄回来的这种蝙蝠所携带的类似于sars的 corona virus, 可以不经过
其它受体/宿体,而直接传染给人。 他们... 阅读全帖
C*I
发帖数: 4736
28
一直在误导,现在还在误导。 说说明corona virus 不可以从蝙蝠直接传染给人,必须
经过一个中间宿体性的其它动物才能传染给人。所以,病毒发生后,就故意误导全国人
民去海鲜市场找证据,找其它野生动物的麻烦。 而且还是病毒所去找的,找完了还装
模做样化验呀,分离呀什么的。最后把责任全部推给了海鲜市场的动物。可是那种动物
,一直不敢说,说了其它相关已经在人就会去早那种动物监测。 所以压根不说,打马
虎眼。
事实上,早在2013 年,就是这个武汉病毒研究所,已经从来自云南的蝙蝠身上所携带
的corona virus中分离出第一株蝙蝠SARS类似样的冠状病毒的活病毒,其中就包含了类
似于S类型的基因。从而证实这株病毒能够使其接受和SARS病毒相同的受体,并能够感
染人的细胞。对此新发现,武汉病毒所还把它以武汉病毒研究所的英文简称命名“WIV1
”,以彰显这一发现的重要价值和属于自己第一个发现的巨大研究成果。这个成果刊载
于2013年11月的《自然》杂志。
就是说,从云南弄回来的这种蝙蝠所携带的类似于sars的 corona virus, 可以不经过
其它受体/宿体,而直接传染给人。 他们... 阅读全帖
C*I
发帖数: 4736
29
Published: 30 October 2013
Isolation and characterization of a bat SARS-like coronavirus that uses the
ACE2 receptor
Xing-Yi Ge, Jia-Lu Li, Xing-Lou Yang, Aleksei A. Chmura, Guangjian Zhu,
Jonathan H. Epstein, Jonna K. Mazet, Ben Hu, Wei Zhang, Cheng Peng, Yu-Ji
Zhang, Chu-Ming Luo, Bing Tan, Ning Wang, Yan Zhu, Gary Crameri, Shu-Yi
Zhang, Lin-Fa Wang, Peter Daszak & Zheng-Li Shi
Nature volume 503, pages535–538(2013)Cite this article
Abstract
The 2002–3 pandemic caused by severe acute respirator... 阅读全帖
C*I
发帖数: 4736
30
相比较而言,石正丽的《Bat origin of human coronaviruses/蝙蝠是人类冠状病毒的
来源》是扎扎实实的抓蝙蝠,解剖蝙蝠,分离病毒,对比DNA,RNA后得出得结论。
请lobbock读一读,说一说,走两步!
http://virologyj.biomedcentral.com/articles/10.1186/s12985-015-0422-1
Review
Open Access
Published: 22 December 2015
Bat origin of human coronaviruses
Ben Hu, Xingyi Ge, Lin-Fa Wang & Zhengli Shi
Virology Journal volume 12, Article number: 221 (2015) Cite this article
Abstract
Bats have been recognized as the natural reservoirs of a large variety of
viruses. Special attention has ... 阅读全帖
d***h
发帖数: 97
31
来自主题: USANews版 - 2008 Pollster Report Card
2008 Pollster Report Card
The table below is an assessment of pollster performance in the 2008
Presidential election. The pollsters were graded on both the accuracy of
their final poll (popular vote) and the consistency of their polling during
the month of October. The overall score is a weighted average of their
Accuracy and Consistency numbers. The weighting is 75% accuracy and 25%
consistency. Formula details are at the bottom of this page.
Poll Score Grade Accuracy C... 阅读全帖
c*****g
发帖数: 21627
32
来自主题: USANews版 - 疣太高盛迫害前员工
Michael Lewis: Did Goldman Sachs Overstep in Criminally Charging Its Ex-
Programmer?
A month after ace programmer Sergey Aleynikov left Goldman Sachs, he was
arrested. Exactly what he’d done neither the F.B.I., which interrogated him
, nor the jury, which convicted him a year later, seemed to understand. But
Goldman had accused him of stealing computer code, and the 41-year-old
father of three was sentenced to eight years in federal prison.
Investigating Aleynikov’s case, Michael Lewis holds a s... 阅读全帖
M*****8
发帖数: 17722
33
来自主题: ebiz版 - 大叔不要迷信organic食品

......................
正确,这才是最重要的。
原因在此:
http://www.freewebs.com/lasalocid/
Atrial Fibrillation Caused Or Worsened By Lasalocid Residue In Eggs
1998 - 2005 updated Nov 2006 and May 2007
Richard Gee
This Paper in PDF Format
Lasalocid is a veterinary "antibiotic" which is given as a feed supplement
to certain farm animals and poultry including birds destined to become
layers. You can read all about this highly toxic heart poison and how it is
seriously afflicting UK egg production in this April 2... 阅读全帖
H****y
发帖数: 2992
34
来自主题: Faculty版 - 我为尹希教授做的专访
Interview with Dr. Xi Yin

--- By Fiona Rawsontile, Sept 2015
This interview was inspired by an earlier interview of Dr. Yin I saw on the
Internet, which made me think that we can’t expect someone who normally
writes for entertainment to understand a physicist. To “provoke” a
scientist, we need another scientist. So I volunteered (to myself) and sent
an invitation to Dr. Yin, who was recently promoted to Professor in Physics
at Harvard Uni... 阅读全帖
S*******t
发帖数: 3956
35
来自主题: Faculty版 - 翻译:高妹对尹希教授的专访
(作为年仅31岁就晋升哈佛正教授的青年才俊,尹希教授最近得到了很多关注。其中一
篇关于他的专访进入了一名同是美国大学华裔教授的女科学家的视线。因为觉得这样的
采访不过瘾,她突发奇想,想亲自采访一下尹希。于是就有了这个我们今天看到的两名
科学家之间的对话。这位女教授使用了化名,这是她出版自己几部科幻小说的笔名。对
,没错,这位女教授同时也是一个女文青,已经写了几本书,还都是英文,Amazon 就
能买到。感兴趣的不妨找来看看。很可能有一天,她也会成为传奇式的人物。那今天这
篇采访就会成为另一段佳话。)
Interview with Dr. Xi Yin

--- By Fiona Rawsontile, Sept 2015
Translated by Slow Rabbit
This interview was inspired by an earlier interview of Dr. Yin I saw on the
Internet, which made me think that we can’t expect some... 阅读全帖
d********w
发帖数: 363
36
来自主题: JobHunting版 - 系统设计能力提高捷径
品味来了。
Basics and Algorithms
The Five-Minute Rule Ten Years Later, and Other Computer Storage Rules of
Thumb (1997): This paper (and the original one proposed 10 years earlier)
illustrates a quantitative formula to calculate whether a data page should
be cached in memory or not. It is a delight to read Jim Gray approach to an
array of related problems, e.g. how big should a page size be.
AlphaSort: A Cache-Sensitive Parallel External Sort (1995): Sorting is one
of the most essential algorithms in... 阅读全帖
t*********r
发帖数: 387
37
不等你回复了,我老直接开喷吧
常人对CAP的理解无非是这样的:CAP里面三挑二,你丫的不能搭一个又consistent, 又
available,又能partition tolerant的系统。
要是问为啥,有些人会说人家伯克利叫兽发呸破那样说的,还有人说MIT苦逼僧发呸破
证明的
其实都是忽悠人的。骗术很简单:他们骗你说,你有两台机子。如果容忍partition,那
么他们要么consistent but not available (not service request while
partitioned),要么available but not consistent(service request while
partitioned, but with no guarantee of serializability)。这个是原呸破“证明
CAP”的思路 (感兴趣的同学可以看这个:http://webpages.cs.luc.edu/~pld/353/gilbert_lynch_brewer_proof.pdf
其实这个“证明”偷换了一个概念:仅仅因为一个partition导致... 阅读全帖
m****s
发帖数: 18160
38
来自主题: JobMarket版 - 两个IT工作机会,在DC downtown
【 以下文字转载自 WashingtonDC 讨论区 】
发信人: dawnrain (fishman), 信区: WashingtonDC
标 题: 两个IT工作机会,在DC downtown
关键字: IT, 工作机会
发信站: BBS 未名空间站 (Fri Feb 15 09:33:29 2013, 美东)
摘要:
一个的相关领域是Human Computer Interaction, User Experience Design and
Development, Mobile Applications, Social Media, and Information Retrieval
另一个的相关领域是Information Retrieval, Machine Learning, Natural Language
Processing, Data Mining, and Image/Video Processing
都是senior level的职位,工作经验的需要是 Generally requires 5-8 years
related experience after... 阅读全帖
r**********g
发帖数: 22734
39
一般不会上报,赶紧挂电话让他们不要报。寄出支票:用restrictive endorsement
Using Restrictive Endorsements to Settle Debts
Information on restricted endorsements and UCC Codes on Negotiable
Instruments
Debts are sold by the thousands everyday to third party debt collectors.
Before you assume you owe it, there is caution to heed. You've probably made
the mistake at least once of paying an old debt without first attempting to
validate and or negotiate it! You may already know the drill- always
validate first and settle late... 阅读全帖
c*******u
发帖数: 12899
40
☆─────────────────────────────────────☆
sunnyaspen (sunnyaspen) 于 (Wed Jan 4 16:46:56 2012, 美东) 提到:
由于妈妈焦头烂额的头脑发昏,就先写宝宝的基本信息,再写宝宝表现,求有经验的妈
妈给点建议,全家都不知道宝宝怎么回事了。
3个月的女宝宝,出生足月7磅,顺产,白天nap不好,晚上一直是7点半洗澡喂奶睡觉,
啥时候睡着不一定,曾经好过一些,现在还是不好,吃得少,体重和身高都不怎么长,
能小翻身,咿咿呀呀会说,挺爱傻笑。求让宝宝好吃好睡的建议
出生前半个月,迷糊中,好宝宝一个,妈妈有足够的时间为产奶发愁
3-4周,妈妈老担心奶不够,11点迷糊奶给奶粉,出现colic,妈妈听说不能让宝宝多哭
,于是一哭叫全家抱抱,开始不好好睡觉,必须走着哄睡,奶睡后几分钟就醒,后来就
发展成必须走着抱着睡,全家累昏了,后来发现宝宝对奶粉过敏吧,停了奶粉,妈妈不
喝牛奶,colic消失,宝宝晚上睡眠更差,抱着也嚎,经常到12点
4-6周,地狱一周。姥姥不让抱着睡了,说太上火,也睡不好,用一切方法让宝宝躺... 阅读全帖
e********e
发帖数: 6961
41
来自主题: NextGeneration版 - 添加辅食schedule
Palo Alto Medical Foundation的添加辅食guideline,我觉得说得很详细,就type了
一遍,贴上来。
GENERAL PRINCIPLES
1. Introduce only one single food into the diet every three to four days, in
order to observe for allergic reactions or intolerance. Don’t offer “
mixed” foods until the individual ingredients in the mixture each have been
tried and tolerated previously.
2. Allergic reactions will generally present as one or more of the following:
a. Vomiting
b. Watery diarrhea occurring over 5-6 times a day
c. Abdominal pain
d... 阅读全帖
e****e
发帖数: 1042
42
来自主题: NextGeneration版 - 没长牙的宝宝能吃绿色蔬菜吗?
发信人: edlesswise (幸福像花儿一样), 信区: NextGeneration
标 题: 添加辅食schedule
发信站: BBS 未名空间站 (Fri Nov 16 18:25:09 2012, 美东)
Palo Alto Medical Foundation的添加辅食guideline,我觉得说得很详细,就type了
一遍,贴上来。
GENERAL PRINCIPLES
1. Introduce only one single food into the diet every three to four days, in
order to observe for allergic reactions or intolerance. Don’t offer “
mixed” foods until the individual ingredients in the mixture each have been
tried and tolerated previously.
2. Allergic reactions will generally present as ... 阅读全帖
f********e
发帖数: 1984
43
先说说宝宝的症状吧:
宝宝每天睡下后,每一到两个小时醒一次,一晚上醒个七八次,九十次,不是要喝奶,
就是醒了要人哄。有时安慰奶嘴管用,有时安慰奶嘴不管用,要抱,放下就醒,有时只
有喂奶才能让宝宝安静下来。非常不consistent。宝宝很容易入睡,所以我了解到,其
实宝宝是没有自己入睡的能力。而不是常见的overtired,也不是作息没有规律。娃妈
,也就是lz我,白天还要上班,开车五十分钟单边,精神压力极大,老是发脾气。这种
情况断断续续的持续了好几个月。
sleep train的精神动力来自于一本叫healthy sleep habits,happy child这本书。
Train前总共读了三本关于宝宝睡觉的书,另外两本是no cry sleep solution和the
happiest baby on the block。其实no cry sleep solution是本挺好的书,教你怎么
循序渐进的改掉某种习惯。比如戒掉奶嘴,比如断掉co-sleep等等。书里介绍了很多方
法,但是对于宝宝睡眠的理论介绍的比较少。我最开始也是用的这个方法,想要戒掉安
慰奶嘴,学会自己入睡,因为... 阅读全帖
t*******r
发帖数: 22634
44
来自主题: Parenting版 - 有没有孩子time out没用的?
您这个回帖引起了俺深深的思考。。。不过俺发现问题在哪里了,
俺现在这么描述:
俺的疑惑,是你娃前面的描述,一定要看某个电视、一定要去某个
lane check out、一定开车回去,完全是 strong-willed。
但是当被 time out 的时候,却毫不在乎,这个从俺的角度理解
是非常自相矛盾的,这时候为啥 will power 突然消失了。。。
但是如果回过头来看俺上面那段话,之所以产生 paradoxical,
是因为我假设 strong-willed 应该是 consistent 的 --
consistently control & planning 娃自己的 schedule/life
。。。所以错在这个假定。。。不是所有的will power 都是这样
consistent 的。
现在回到实战,在 strong-willed 和 logical/analytical
之间,在俺的回忆里,貌似老师们对 strong-willed 总是
半信半疑的神情。
我在想,可能是俺错了,还错了 N 年。俺的俩娃,可能就是
logical/analytical kids,根本不是 ... 阅读全帖
k********8
发帖数: 7948
45
来自主题: Stock版 - Fed Statement
http://www.federalreserve.gov/newsevents/press/monetary/20101103a.htm
Press Release
Release Date: November 3, 2010
For immediate release
Information received since the Federal Open Market Committee met in
September confirms that the pace of recovery in output and employment
continues to be slow. Household spending is increasing gradually, but
remains constrained by high unemployment, modest income growth, lower
housing wealth, and tight credit. Business spending on equipment and
software is risi... 阅读全帖
w***w
发帖数: 6301
46
Daytrading can maintain consistency but not at a very high return.
Because:
1. liquidity: when your capital grows big you can't exit fast as needed.
2. Low margin is necessary to maintain consistency.If you use big margin, then your trading is too risky to maintain consistency.
The only trader that was doing good to maintain consistency at very high
return is Livermore, and even he failed at the end. And at his age the
market was much less complicated than today's market.
t*********e
发帖数: 313
47
来自主题: Stock版 - FOMC Statement 01/26/2011
Press Release: http://www.federalreserve.gov/newsevents/press/monetary/20110126a.htm
Release Date: January 26, 2011
For immediate release
Information received since the Federal Open Market Committee met in December
confirms that the economic recovery is continuing, though at a rate that
has been insufficient to bring about a significant improvement in labor
market conditions. Growth in household spending picked up late last year,
but remains constrained by high unemployment, modest income growth... 阅读全帖
h*l
发帖数: 807
48
来自主题: Stock版 - Press release
Release Date: August 9, 2011
For immediate release
Information received since the Federal Open Market Committee met in June
indicates that economic growth so far this year has been considerably slower
than the Committee had expected. Indicators suggest a deterioration in
overall labor market conditions in recent months, and the unemployment rate
has moved up. Household spending has flattened out, investment in
nonresidential structures is still weak, and the housing sector remains
depressed. ... 阅读全帖
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