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全部话题 - 话题: derived
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z**n
发帖数: 22303
1
来自主题: gardening版 - 说说我所知道的转基因
先玉335到底是不是转基因?
已有 3198 次阅读 2011-9-18 23:12 |个人分类:环保呐喊|系统分类:科普集锦|关键词
:face 3 农业部 转基因 环保部
蒋高明
先玉335是转基因的吗?环保部说是,农业部说不是。但农业部承认先玉含有
CaMV35S启动子。如果你坚持怀疑它是转基因,人家会说你是造谣,有关部门早就宣布
它不是。如果你拿出事实证明吃了先玉335的动物(老鼠、猪、鸡)出现异常反应,他们
会说“就算它真的影响了生态,也与转基因品种无关。”既然转基因是好的技术,为什
么那么害怕这三个字呢?
先玉335的父本含有PH4CV。而PH4CV的类别编号包括“800/302”;在美国专利
法的规定中,“302”即指“基因修饰”。长长的专利资料文件显示,PH4CV的开发包括
了使用BT和HT转基因技术——这是用于商业化大宗农作物的仅有的两类转基因技术。美
国农业部在核准PH4CV品种的公告中指出,该品种的种植必须遵循“农作物保护法”的
要求,例如,种子必须是新的、成分稳定的同代同样品种,未经批准不得使用子代作为
种子使用;对转基因作物种植... 阅读全帖
b*s
发帖数: 82482
2
来自主题: LeisureTime版 - 爱情
比较一下词条的详细程度:
torpedo:
torpedo, n.
View as:
Outline |
Full entry
Quotations:
Show all |
Hide all
Pronunciation: /tpid/
Forms: Also 15 -ido. Pl. torpedoes.
Etymology: < Latin torpēdo stiffness, numbness, also the cramp-fish or
electric ray, < torpēre to be stiff or numb; = Spanish torpedo, Portuguese
torpedo, Italian torpedine. Compare French torpille, Italian torpiglia from
the same verb.(Show Less)
1.
Thesaurus
Categories
a. A flat fish of the genus Torpedo or family Torpedini... 阅读全帖
c**i
发帖数: 6973
3
来自主题: Music版 - Free Pre-1925 Music to Listen to
Will Friedwald, Tracks to Our Music Heritage; The Library of Congress takes
a serious step toward making historical recordings available online. Wall
Street Journal, May 26, 2011
http://online.wsj.com/article/SB100014240527023
04066504576343394046637256.html?mod=googlenews_wsj
Note:
(a) National Jukebox; Historical Recordings from the Library of Congress
http://www.loc.gov/jukebox/
(" available to the public free of charge. The Jukebox includes recordings
from the extraordinary collections of th... 阅读全帖
S*********g
发帖数: 24893
4
【 以下文字转载自 Seattle 讨论区 】
发信人: Overlake (Overlake), 信区: Seattle
标 题: Re: 阿拉巴马的血性华人汉子 (转载)
发信站: BBS 未名空间站 (Sun Feb 9 19:38:03 2014, 美东)
_gen/derivatives/landscape_635/friend9n-1-web.jpg
_gen/derivatives/landscape_635/friend9n-3-web.jpg
_gen/derivatives/landscape_635/friend9n-2-web.jpg
p*e
发帖数: 6785
5
【 以下文字转载自 Military 讨论区 】
发信人: leetforever (53), 信区: Military
标 题: 中道教成立声明+QA:草稿(v5.0)
发信站: BBS 未名空间站 (Fri Jan 8 19:04:34 2016, 美东)
前言: 此稿是响应pantheism(CPT兄),孔圣兄号召,以道家为基础,融合孔/墨/
基督教精神,为北美华裔量身制作的宗教。 先暂名为“新道教”,后来发现有豆瓣
group,因此改名
为“中道教”。
http://www.douban.com/group/topic/77156232/
孔圣兄创立NJ 孔圣会,欢迎大家访问网址:
http://confuciansociety.org
此稿有CPT兄,Cai兄, 孔圣兄很多贡献,特别是简史和QA。 鸣谢。还要感谢土著人兄的
插科打诨
,和气兄及几位买买提大牛的热心鼓励。
http://www.mitbbs.com/article_t/Military/45104923.html
请大家随便转发。 如果认为以下理念可以接受,请自主创立道社(教会);无需申请
许可,可以运... 阅读全帖
w*******a
发帖数: 428
6
详细资料如下:
Lightning Mandarin: -- Learn Chinese Characters 6+ Times Faster to Reach 90%
Coverage
Amazon Best Sellers Rank:
#35 in Books > Children's Books > Education & Reference > Foreign Language
Learning > Chinese
#35 in Kindle Store > Kindle eBooks > Reference > Foreign Language Study &
Reference > Language Instruction > Chinese
#65 in Kindle Store > Kindle eBooks > Children's eBooks > Education &
Reference > Foreign Language Learning
1. This book presents a “mind map” approach to Chinese chara... 阅读全帖
R*o
发帖数: 3781
7
来自主题: TrustInJesus版 - The Millennial Kingdom (1)
By Pastor Kelly Sensenig
In Maryville, Tennessee, a family boasts about a house that they built "to l
ast a thousand years." The house was built of marble, stone and concrete by
Mr. and Mrs. William Nichols. It took nine years to build. There are no nail
s in any part of the house. Except for doors, door facings, and parts of the
windows, there is no wood. Even the bathtub is concrete. Some walls are fiv
e feet thick. The owners built the house to last through the millennium, whi
ch they believe... 阅读全帖
l**********t
发帖数: 5754
8
Chapter 2.2 Man’s State By Nature
We come therefore to Romans 5:12-21. In this great passage, grace is brought
into contrast with sin and the obedience of Christ is set against the
disobedience of Adam. It is placed at the beginning of the second section of
(Romans 5:12 to 8:39) with which we shall now be particularly concerned,
and its argument leads to a conclusion which lies at the foundation of our
further meditations. What is that conclusion? It is found in verse 19
already quoted: “For as ... 阅读全帖
l**********t
发帖数: 5754
9
Chapter 2.2 Man’s State By Nature
We come therefore to Romans 5:12-21. In this great passage, grace is brought
into contrast with sin and the obedience of Christ is set against the
disobedience of Adam. It is placed at the beginning of the second section of
(Romans 5:12 to 8:39) with which we shall now be particularly concerned,
and its argument leads to a conclusion which lies at the foundation of our
further meditations. What is that conclusion? It is found in verse 19
already quoted: “For as ... 阅读全帖
G*******s
发帖数: 4956
10
首先给大家看个故事,然后再探讨经文:
林慈信牧师的《基督教教义发展史》中提到这个:
http://blog.sina.com.cn/s/blog_622134fd01013i7l.html
基督论的发展史(1):基督论的争辩
HISTORY OF THE DOCTRINE OF CHRIST (1):
The Christological Controversies
(Louis Berkhof, A History of Christian Doctrines, pp. 101ff.)
基督论与三位一体之问题的关联
Connection of Christological and Trinitarian Problems
基督论的难题可以从一般神学(译注:神论)方面,与拯救论方面来加以
研究。早期教父对基督论拯救方面的关系,虽未曾加以轻忽,但他们在重要的讨论上却
没有重视。在三位一体争论的气氛中,他们从一般神学(译注:神论)方面来研究基督
,乃天经地义的事,而三位一体争论所导致的决定则是,基督为神的儿子,事与父同质
的,因此祂是神。从此而发生的问题,就是基督... 阅读全帖
m**i
发帖数: 8296
11
【 以下文字转载自 astrology 讨论区 】
发信人: muai (暮霭:俯仰之间 Q *^O^* P 告别一年狗血~`), 信区: astrology
标 题: 哇哇哇哇!NCBI里找到的占星科技文!~`
发信站: BBS 未名空间站 (Sat Jan 29 01:06:27 2011, 美东)
刚刚看到的。。。思考占星是否伪科学的时候随手一搜。。。哇、哇、哇~`
J Clin Epidemiol. 2006 Sep;59(9):964-9. Epub 2006 Jul 11.
Testing multiple statistical hypotheses resulted in spurious associations: a
study of astrological signs and health.
Austin PC, Mamdani MM, Juurlink DN, Hux JE.
Institute for Clinical Evaluative Sciences, G1 06, 2075 Bayview Avenue,
Toronto, Ontario, M4... 阅读全帖
m**i
发帖数: 8296
12
【 以下文字转载自 astrology 讨论区 】
发信人: muai (暮霭:俯仰之间 Q *^O^* P 告别一年狗血~`), 信区: astrology
标 题: 哇哇哇哇!NCBI里找到的占星科技文!~`
发信站: BBS 未名空间站 (Sat Jan 29 01:06:27 2011, 美东)
刚刚看到的。。。思考占星是否伪科学的时候随手一搜。。。哇、哇、哇~`
J Clin Epidemiol. 2006 Sep;59(9):964-9. Epub 2006 Jul 11.
Testing multiple statistical hypotheses resulted in spurious associations: a
study of astrological signs and health.
Austin PC, Mamdani MM, Juurlink DN, Hux JE.
Institute for Clinical Evaluative Sciences, G1 06, 2075 Bayview Avenue,
Toronto, Ontario, M4... 阅读全帖
c*y
发帖数: 137
13
Just to give an example; in the example, both the base and derived class has
two methods : equals and compares and they do the same thing, comparing two
objects. But equals() is OVERLOADED in the derived class and compares() is
OVERRIDDEN in the derived class. And you can see the difference between this
two:
class base{
private String value = "Base";
public String getValue(){return value;}
public void print(){System.out.println(getValue());}
public boolean equals(base b){
System.out.p
i**h
发帖数: 424
14
来自主题: Linux版 - 还是关于用GPL code的问题
What constitute a derivative work is often controversial, especially when
the dependent library is not hard-linked to your work. Dynamic linking, for
example, used to be believed by many as non derivation. But obviously GNU
does not agree with that. I remember there was another argument about
whether or not a product of a GPL software constitute a derivative work (e.g
. what if part of your code is generated by Bison).
Back to the topic, I believe if you import GPL python module, your work is a
n****1
发帖数: 1136
15
来自主题: Linux版 - 论linux的体验与普及
驱动程序不就是响应些interrupt,读写某个区域的内存么. 硬件驱动代码的很大一部分
都是从windows版本的驱动里面copy过来的, 因为硬件自己的逻辑都一样. 这些驱动只
是用到了一些kernel头文件用来整合入内核而已, derive了啥代码? 如果驱动都算
derivative work,那啥程序不算?
所以我一直认为绝大部分驱动是non-derivative work的子集。如果你可以举出反例我
欣然接受。
o*o
发帖数: 404
16
来自主题: Programming版 - C++ 弱问一个
This is called upcast. You assigned the address of the object to
that of its base class. The function newly defined in derived class
will be un-accessible to that pointer. If a function defined virtual
in base class and you overrided it in derived class, the copy in
derived class will be called. Otherwise, the copy in base class is called.
s***e
发帖数: 122
17
来自主题: Programming版 - virtual function question

struct Derived 3 : public Derived 2{
virtual int vf2 (int);
// diferent from vf1!
==============
WHY DIFFERENT? WHY SHOULD BE CAREFUL HERE? I AM LOST
================
they are different because they have different name.
be careful because this vf1() has different signature than vf1() derived
from its superclass: int vf1(int) <=> int vf1(void), so it's a new function.
i personally think they have nothing to do with virtual functions, but trick
things.
================
virtual int vf1 (int); // B
b***y
发帖数: 2799
18
来自主题: Programming版 - 问个object suicide问题
class base
{
public:
f(void) { delete this; }
};
class derived : public base
{
};
int main()
{
derived D = new derived();
D->f();
}
which object is deleted?
s***e
发帖数: 122
19
来自主题: Programming版 - 问个object suicide问题
first, in your main function, you should make the derived object with new
operator, such as:
derived * pD = new derived();
pD->f();
and then, the base part of the object is deleted. And that's why you should
put a virtual destructor in base, in that case the whole object is deleted.
s*****k
发帖数: 604
20
来自主题: Programming版 - template 类的继承问题
在子类 Deriv中使用父类的数据成员numArray就会出错,
提示的错误信息是numArray没有declare.
改成 Base<_Tp>::numArray 就编译通过了。
请问这是为什么?
我用的编译器是 gcc 3.4.4 (cygwin) 和 gcc 4.2.4 (ubuntu)
#include
template
class Base
{
protected:
_Tp numArray[3];
Base()
{
numArray[0] = static_cast<_Tp>(1);
numArray[1] = static_cast<_Tp>(11);
numArray[2] = static_cast<_Tp>(111);
};
};
template
class Deriv: public Base<_Tp> {
public:
Deriv() {
/* Why the followi
l**********o
发帖数: 22
21
来自主题: Programming版 - 请教一个class design的问题
我现在有一个比较大的class structure大致是这样的
A (abc)
|
B
/ \
C D
/ \ |
E F G
/ \ |
H I J
现在要做一个新的class,从project的概念上讲是和class B大概是类似eclipse和
circle的关系,但是就具体内容而言,也就是里面的一小部分function不一样,但是
new class其他大部分function和B 一样,它的derive结构也一样,只是它的相对应的
derived class也和B 的每一个derived class几乎一样只有少部分function不同。 在
这种情况下,我该怎么设计这个new class呢?我也不想把大段的code直接copy,但又
想不出怎么安排这个new class和现有class,有经验的请指点一下,谢谢!
m**********8
发帖数: 103
22
来自主题: Programming版 - 请教C++问题
class base{
~base();
};
class derived: public base{
};
int main(int argc, char **argv)
{
derived *d = new derived;
}
为什么给base手动加上一个public的default ctor之后编译会出错,说base::~base()
is private? thanks!
b******g
发帖数: 81
23
来自主题: Programming版 - C# 访问数据库的问题
How about inheriting class? I have sub/derived classes to persist. e.g.
People(base) -> Student(derived). I have People table, I want the derived
class be saved to People table as well.
Would any of these tools be able to handle that?

key
c**********e
发帖数: 2007
24
【 以下文字转载自 JobHunting 讨论区 】
发信人: careerchange (Stupid), 信区: JobHunting
标 题: C++ Q98: Call member function in virtual function
发信站: BBS 未名空间站 (Fri Oct 21 20:04:02 2011, 美东)
What is the output of the following code? Why?
#include
using namespace std;
class base {
public:
void pay() { cout << "Base::pay" << endl; }
virtual void eat() { pay(); }
};
class derived: public base {
public:
void pay() { cout << "Derived::pay" << endl; }
};
void main() {
base* p = new derived;
... 阅读全帖
B****S
发帖数: 597
25
A derived object may access the protected members of its base class only
through a derived object. The derived class has no special access to the
protected members of base type objects.
真是你妹啊。
Y**G
发帖数: 1089
26
目测结果。很奇怪,我碰到不少5年经验的Java程序员都会做错。
public class Base {
public int x = 1;
public void showX1() {
System.out.printf("%dn", x);
}
public void showX2() {
System.out.printf("%dn", x);
}
}
public class Derived extends Base {
public int x = 3;
@Override public void showX2() {
System.out.printf("%dn", x);
}
}
public class Main {
public static void main(String[] args) {
Derived a = new Derived();
a.showX1();
a.showX2();
... 阅读全帖
p*********r
发帖数: 40
27
假设有个base class叫Animal
derived class包括Cat,Dog等等
class Cat: public Animal {
...
};
现在希望在Animal里定义一个成员函数,比如叫processData
其作用是处理一些各种动物共通的数据,比如身高体重之类的
其输入是AnimalData这个class的object,当然身高体重什么的都是AnimalData这个
class的member variable
而在Cat这个class里,希望有一个overriden的processData函数,处理身高体重加上其
他一些cat特有的数据,比如胡须长度,这些数据都是CatData这个class的member
variable,当然,CatData是AnimalData的 derived class
现在问题是一般怎么设计这个base class Animal和derived class Cat?
假如把processData的输入参数设为AnimalData类型的reference,那么Cat的
processData就不能用CatData类型的referenc... 阅读全帖
s*******g
发帖数: 243
28
来自主题: Programming版 - 国内的编程论坛很不自由
死鸭子嘴硬。“static_cast不会让你做静态无法保证安全性的转换,比如基类指针转
派生类”,你确定static_cast不能基类指针转派生类,下面的代码会出错?
void Foo(Base* base)
{
Derived* d = static_cast(base);
//do something with d
}
Base* ptr = new Derived();
Foo(ptr);
错就错了,谁没个错的时候,还死要面子不承认。
i*****e
发帖数: 218
29
来自主题: Programming版 - 请教一个python OOP 实现的问题
向大家请教一个python OOP 实现的问题。
我是从C++背景转用python 的。 关于python, 有一点我一直没搞明白。
In C++, object oriented的核心是, 可以用base class的 pointer 调用 derived
class 的methods。 这样 基本的框架可以用base class实现, 通过derived class
method实现”polymorphism“。
这个的设计在python里, 是如何实现的 ?
python 里怎么用 base class object call derived class method ?
多谢大家。
s*******0
发帖数: 3461
30
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
E***t
发帖数: 11
31
各位大家好,最近才开始上这个板块。
今年5月本科就要毕业了, 统计和金融专业的。 所以在本科的时候我考过了P和FM.
准备这两个考试的时候,都是照着soa的推荐的书来准备的。
第一个p是学校学过的一本Probability的书,第二个FM是看学校图书馆的mathematical
interest theory和derivatives markets. 两门都比较顺了比较幸运的过了。
前阵子报名了mfe,然后打算沿derivatives markets看下来。
在版里才知道有ASM这个复习的材料。
麻烦各位指点一下, 是走ASM的材料好还是就把derivatives markets的看下来比较好
呢?
对了, 另外下半年去哥大的精算~不知道大家有什么意见和建议给我不?
谢谢先了~
l**********1
发帖数: 5204
32
来自主题: Biology版 - 2012年诺贝尔生物医学奖
En
one aspect:
To keep stability and safety of Somatic cell Reprogramming to iPS cell
pls refer
Hamada M. et al. (2012)
Reprogramming to Pluripotency Can Conceal Somatic Cell Chromosomal
Instability.
PLoS Genet. 8: e1002913.
Abstract
ignored
These findings suggest that aneuploid cells can be selected for or against
during reprogramming depending on the W-CIN gene defect and present the
novel concept that somatic cell W-CIN can be concealed in the pluripotent
state. Thus, karyotypic analysis of s... 阅读全帖
h******y
发帖数: 351
33
来自主题: Biology版 - Finally, Human ESC from SCNT
终于克隆人了。
Human Embryonic Stem Cells Derived by Somatic Cell Nuclear Transfer
Cell, 15 May 2013
doi:10.1016/j.cell.2013.05.006
Reprogramming somatic cells into pluripotent embryonic stem cells (ESCs) by
somatic cell nuclear transfer (SCNT) has been envisioned as an approach for
generating patient-matched nuclear transfer (NT)-ESCs for studies of disease
mechanisms and for developing specific therapies. Past attempts to produce
human NT-ESCs have failed secondary to early embryonic arrest of SCNT e... 阅读全帖
r*****m
发帖数: 3619
34
来自主题: Biology版 - Wang Jun这么狠了吗?
Results: 46
Select item 25597018
1.
Exome-wide Sequencing Shows Low Mutation Rates and Identifies Novel Mutated
Genes in Seminomas.
Cutcutache I, Suzuki Y, Tan IB, Ramgopal S, Zhang S, Ramnarayanan K, Gan A,
Lee HH, Tay ST, Ooi A, Ong CK, Bolthouse JT, Lane BR, Anema JG, Kahnoski RJ,
Tan P, Teh BT, Rozen SG.
Eur Urol. 2015 Jan 14. pii: S0302-2838(14)01396-7. doi: 10.1016/j.eururo.
2014.12.040. [Epub ahead of print]
PMID: 25597018 [PubMed - as supplied by publisher] Free Article
Related citations... 阅读全帖
t******a
发帖数: 118
35
来自主题: Business版 - Re: 请问这里有没有finance的phd啊
roughly speaking, modeling of assets for derivative pricing, pricing and hedging
of derivative securities, including exotic options and other structured
securities, risk management and analysis of portfolios with derivative
securities, "Greek" analysis and analytic and numerical Value at
Risk computation for static and dynamic portfolios.
g***i
发帖数: 90
36
来自主题: Computation版 - 有人用过FORM做符号计算吗?
Maple, derive, maxima, and also matlab(for symbolic comp),
they are similar in that u input some expression and
get the corresponding results, and so on. they may differ
in some functions, or the user interface. presently
the newest maple7 provides some nice and convenient
interfaces.
For derive, maxima, they r very small
Derive has convenient menu-driven user interface and the i
ntuitive operation.
this may be too simple to explain to u.
f********n
发帖数: 9
37
来自主题: Economics版 - 期望值关于概率参数的性质
I googled a paper that might help:
Pierre L'Ecuyer (1995). Note: on the interchange of derivative and
expectation for likelihood ratio derivative estimators. Management Science
Vol. 41 No.4. pp. 738-748.
If analytic expression for E[f(x)|theta] is not available, I think it is
hard to obtain general results. However, you can always use Mathematica to
numerically integrate f(x) and study the pattern of its numerical derivative.
G****n
发帖数: 145
38
来自主题: Economics版 - top full time finance scholars in China
Zhou Chunsheng 100+ papers
The term structure of credit spreads with jump risk[PDF] from psu.eduC Zhou
- Journal of Banking & Finance, 2001 - Elsevier
Default risk analysis is important for valuing corporate bonds, swaps, and
credit derivatives and
plays a critical role in managing the credit risk of bank loan portfolios.
This paper offers a theory
to explain the observed empirical regularities on default probabilities,
recovery rates, and ...
Cited by 330 - Related articles - All 15 versions
An... 阅读全帖
kx
发帖数: 16384
39
☆─────────────────────────────────────☆
Gaojun (Gaojun) 于 (Mon Nov 14 12:04:02 2011, 美东) 提到:
Between trust and control: Developing confidence in partner cooperation in
alliancescuny.edu 中的 [PDF]…, BS Teng - Academy of management Review, 1998
- JSTOR
Strategic alliances have been recognized as arenas with potential for
opportunistic behavior
by partners. Hence, a firm needs to have an adequate level of confidence in
its partner's
cooperative behavior. In this article we examine the notion of... 阅读全帖
x*********6
发帖数: 3610
40
再看看(b), "evidencing the title of such proprietor not being a purchaser
for valuable consideration or deriving from or through
such a purchaser"
这个句式or...or...怎么个意思?第一种是说,他不能是个volunteer, 这个好理解。
但"or deriving from or through such a purchaser"什么意思?是不是说,比如这块
地是我妈妈花钱买的,送给我,那么我是个volunteer, 但我的title deriving from
or through 我妈,因为她BFPV, 所以我也得到absolutely free title?
w****g
发帖数: 44
41
来自主题: Mathematics版 - cubic spline interpolation
Hello:
any one know how to obtain the derivative of the cubic spline interpolation
results using a program ?
I am thinking about using a program to find the cubic spline interpolation
and the
derivative of the cubic spline interpolation results based on the input. the
example input file is listed below: a list of potential energies of a pair
particles as a function of the distance
r1 E1
r2 E2
r3 E3
r4 E4
r5 E5
The goal is to find the interpolated potential and force (negative
derivative of the c
m****n
发帖数: 142
42

老大,不要来这些虚的,还是没有回答问题嘛,俺再问一遍---到底derived
algebraic geometry 是已经解决了一些长久以来用别的方法都解决不了的问题呢?如
果是,请列举是什么问题。
还是目前只是期待它解决。
当年老毛子VLADIMIR VOEVODSKY 的东西也极度抽象,但是解决了 Milnor conjecture,
现在derived algebraic geometry 解决了这种级别的问题没有?这个才是要问的问题。
不要把参考资料告诉我们,就你来回答,回答得具体一点:derived algebraic
geometry 解决了什么别的方法解决不了的问题?
a*********3
发帖数: 660
43
定义 definition变量 variable面积 area直径 diameter半径 radius公式 formula
单价 unit price范围 range/scope/extent集合 set法则 principle本金 principal利
率 interest rate利息 interest单利 simple interest复利 compound interest正数
positive number负数 negative number解析式 analytic expression分类讨论
classified discussion性质 nature (不是很确定)奇函数 odd function偶函数
even function对称 symmetric坐标原点 origin单调性 monotonicity(不是很确定)
任意 random周期性 periodic 有界性 boundedness 数学 mathematics, maths(BrE)
, math(AmE) 公理 axiom 定理 theorem 计算 calculation 运算 operat... 阅读全帖
D**o
发帖数: 2653
44
来自主题: Mathematics版 - 关于煙花不堪剪
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: 811
45
来自主题: Physics版 - ion source
multipole expansion
Derive the explicit form in x-y coordinates for the potential contribution
due to the fourth s-derivative T of the octupole strength, for octupole
phase equal to zero, and factor out the fourth derivative of the multipole
strength. What is the value of the coefficient of Tx^8 and Tx^4y^4 ?
Give the answers with 6 digit precision.
a***r
发帖数: 594
46
from what you said, you have no understanding in the big picture of quant
finance. you do not appear to have studied physics in any depth AT ALL either.
many separate the finance world into buy side and sell side. I happen to
have worked on both sides.
the training a physicist receives makes him/her a very good fit for sell
side quant roles.
In this part of the world, one does not try to forecast the future returns
on financial instruments. Instead one focuses on understanding the behavior
of th... 阅读全帖
m********e
发帖数: 1156
47
来自主题: Physics版 - 据说老爱发表了300多篇论文
我还算有知的,无论深度还是广度,奈何世界上的知识太多。
有人贴出老爱的几百篇论文,我一看大多数是德文,不知道,无法判断。
您瞅一眼,看看有多少是真正的科研论文?
1913 Einige Argumente für die Annahme einer molekular Agitation beim
absoluten Nullpunkt Annalen der Physik(ser. 4), 40, 551–560, link
Some Arguments for the Assumption of Molecular Agitation at Absolute
Zero
1913 Déduction thermodynamique de la loi de l'équivalence
photochimique Journal de physique (ser. 5), 3, 277–282
Thermodynamic Deduction of the Law of Photoche... 阅读全帖
z**********g
发帖数: 16
48
来自主题: Physics版 - 斥力子理论
前言:中国大陆的庄一龙先生独创了斥力子理论,可以用来解释爱因斯坦未能解释的疑
难问题,目前已经得到国内科学界某些人的关注,有兴趣的科学界人士可以了解一下斥
力子的基本理论。
我是庄一龙的朋友,目前暂时在美国居住,受其委托,在本站发表他的文章,因为未名
网站在国内是被屏蔽的。
如果想进一步了解该理论,请在网上留言,我会和您联系的。
下面我把对这个理论的大致介绍发表在这里。
2010年12月)中国科学院《科技促进发展》杂志文章:
斥力子理论
撰文 张宇
上海科技管理干部学院庄一龙副教授所创立的“斥力子理论”是一种物理哲学理论,该
理论认为,地面的物体一旦动起来,不管方向如何,都具有一种挣脱地球引力的能力,
就好象物体吸收了一种对抗万有引力的物质。
该理论把普朗克能量子看作是一种具有对抗万有引力能力的实物粒子,称它为“斥力子
”,并认为物体运动状态的改变,就是由于吸收或释放斥力子造成的,作用力的过程是
实实在在的物质转移过程,通过斥力子的转移,斥力子所具有的质量、能量、动量就会
叠加到速度增加的物体上去,造成运动物体的相对性效应。反引力实物能量粒子的引入
,打破了物理学理论的“引力论”框架,... 阅读全帖
s**a
发帖数: 178
49
来自主题: Quant版 - [NYC JOB]IRD Quant-Top IB
Title: VP
Location NYC
Requirements:
Ph.D. in physics, math, quantitative finance or related quantitative field. 3
years or more of experience in Interest Rate Derivatives Modeling and a good
track record of productivity.
Responsibilities:
Work with the trading desk to produce analytics in support of the Global
Exotic Rate Derivatives business. Analytics work covers Interest Rates
Derivatives, FX options and more. Activities include: researching,
implementing and testing new, cutting-edge model
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