y****i
发帖数: 2194 | 1 神棍请自动绕道，只是和搞生物的同学分享一篇好文
转载：原文链接：http://www.douban.com/group/topic/33656795/?r=1
在以前本小组的讨论中，我曾提到 “比如你如果不理解所有生物共有的膜渗透能量供
应化学原理，你就根本无从评价任何生命起源的理论。”
**********************
一 直觉与反直觉
直觉（intuitive）和反直觉（counterintuitive）是科学讨论在描述一个科学理论或
者发现的时候，经常使用的二分法。这个叫法本身并不那么科学和严谨，但是其中的意
味却是无限深长的。
既然不严谨，我也不去定义它，只看范例：
最简单清楚的直觉理论，在古希腊科学有很多范例。比如“物体排开的水量等于它的体
积”。比如欧几里得平面几何中的公设和简单定理。“凡直角都相等”，“两点之间直
线最短”，初学几何的人，都会想这不是废话吗。等到用这些废话为基础武器，逐步分
解，证明了其他复杂得可怕的理论，我们才知道废话的精辟之处。这就是直觉理论最原
始的特征：不言而喻。然而，即使在这种萌芽时代的智慧中，也埋下了“反直觉”理论
的种子，比如仅仅... 阅读全帖 |
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x********a
发帖数: 230 | 2 已拷贝复制整理以增加其可读性.欢迎大家不定期更新,帖子变长，但可通过查找方式找
一下自己感兴趣的老板在不在其中。
[转载]美国部分变态导师列表 按学校整理
此贴包含在美PHD STUDENT 和POSTDOC的各种杯具，转自MITBBS，原帖链接如下，
http://www.mitbbs.com/article_t/Biology/31350357.html
有人总结，四种PI不能碰，AP(assistant professor),F(female),C/T(Chinese/
Taiwanese), Unmarried.
当然这些都是一家之言，个人对这些说法持保留态度，细节需要继续探究。有一个标准
可以用于大家加入某lab之前的预先判断，就是PI的变态程度和lab里中国大陆人加上印
度人占总人数的比例成正比，因为大陆人和印度人都是典型的吃苦耐劳又老实（聪明与
否另说），所以要不是对这方面有特殊需求的PI，是不会故意招很多中国人和印度人的
，具体来说，这个比例在三分之一以内的，正常；三分之一到三分之二的，仍属正常，
只是人比较tough，可能订立了一些关于工作时间、进度的严格的规定；三分... 阅读全帖 |
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j***x
发帖数: 1469 | 3 No.1
============================================
http://onlinelibrary.wiley.com/doi/10.1111/j.1749-6632.2000.tb0
Annals of the New York Academy of Sciences
Volume 908, MOLECULAR AND CELLULAR GERONTOLOGY pages 244–254, June 2000
Inflamm-aging: An Evolutionary Perspective on Immunosenescence
Article first published online: 25 JAN 2006
DOI: 10.1111/j.1749-6632.2000.tb06651.x
No.2
==============================================
Vaccine
Volume 18, Issue 16, 25 February 2000, Pages 1717–1720
Human imm... 阅读全帖 |
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l*******i
发帖数: 153 | 4 专利已经被法国人申请了：
Title： ENGINEERING MAMMALIAN GENOME USING DNA-GUIDED ARGONAUTE INTERFERENCE
SYSTEMS
Pub. No.: WO/2015/140347 International Application No.
: PCT/EP2015/056113
Publication Date: 24.09.2015 International Filing Date: 23.03.
2015
IPC:
C12N 15/113 (2010.01), C12N 15/90 (2006.01)
Applicants: CELLECTIS [FR/FR]; 8 Rue de la Croix Jarry F-75013 Paris (FR)
Inventors: VALTON, Julien; (US).
DUCHATEAU, Philippe; (FR)
Agent: ZACCO ... 阅读全帖 |
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x********e
发帖数: 1064 | 6 Incomplete Fmoc deprotection in solid-phase synthesis of peptides
BJARNE DUE LARSEN, ARNE HOLM
International Journal of Peptide and Protein Research
Volume 43, Issue 1 , Pages1 - 9
1994 Munksgaard
please sent to x**********[email protected]
Thanks. |
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h***o
发帖数: 350 | 8 Understanding the fast lithium storage performance of hydrogenated TiO2
nanoparticles
Yong Yan, Bo Hao, Dong Wang, Ge Chen, Eric Markweg, Arne Albrechtd and
Peter Schaaf
J. Mater. Chem. A, 2013,1, 14507-14513
DOI: 10.1039/C3TA13491A
http://pubs.rsc.org/en/content/articlelanding/2013/ta/c3ta13491
Thank you very much. |
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x****h
发帖数: 300 | 9 1. H. Miyata, T. Mukai, T. Ono, T. Ohno, F. Hatayama, J. Chem.Soc., Faraday
Trans. 1 84 (1988) 2465.
2. G. Busca, F. Cavani, F. Trifiro, J. Catal. 106 (1987) 471.
3. A.J. van Hengstum, J. Pranger, S.M. van Hengstum-Nijhuis,J.G. van Ommen,
P.J. Gellings, J. Catal. 101 (1986) 323.
4. Mehri Sanati, Arne Andersson, Journal of Molecular Catalysis, Volume
81, Issue 1, 22 April 1993, Pages 51-62
Thank you very much! |
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j***h
发帖数: 4412 | 10 美国房地产市场:原本固若金汤 如今濒临崩溃 2011年2月14日 21:56
[世华财讯]房地产市场的衰退已经从美国西南部蔓延到了整个国家。原本具有房价下跌
“免疫力”的西雅图等地区也出现了严重衰退。
综合媒体2月14日报道，很少有人相信美国的房产市场会崩溃，现在这一趋势愈演愈烈
。房地产市场的衰退已经从美国西南部蔓延到了整个国家。
肆虐佛罗里达州和美国西南的房地产衰退使被认为是具有免疫力的众多社区陷入悲伤。
去年，西雅图的房价下跌幅度比拉斯维加斯还要大，明尼阿波利斯的跌幅比迈阿密要大
，亚特兰大的情况也比菲尼克斯要糟糕。
经济学家称，房地产泡沫崩溃是由建筑工人，买家和银行开始的。而这些人只是房地产
链条的其中一环，房地产衰退还远没结束。房地产网站Zillow的首席经济学家Stan
Humphries也表示，房地产低迷将会持续一段时间。
Zillow的数据显示，西雅图的房价已经从2007年中期的顶峰下跌了31%，并且还有10个
百分点的下跌空间。Stan Humphries预测美国其他地区的房价也将下跌5到7个百分点。
在西雅图这种房地产市场相对繁荣的地区出现房地产的衰退，说明房地... 阅读全帖 |
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j***h
发帖数: 4412 | 11 美国房地产市场:原本固若金汤 如今濒临崩溃 2011年2月14日 21:56
[世华财讯]房地产市场的衰退已经从美国西南部蔓延到了整个国家。原本具有房价下跌
“免疫力”的西雅图等地区也出现了严重衰退。
综合媒体2月14日报道，很少有人相信美国的房产市场会崩溃，现在这一趋势愈演愈烈
。房地产市场的衰退已经从美国西南部蔓延到了整个国家。
肆虐佛罗里达州和美国西南的房地产衰退使被认为是具有免疫力的众多社区陷入悲伤。
去年，西雅图的房价下跌幅度比拉斯维加斯还要大，明尼阿波利斯的跌幅比迈阿密要大
，亚特兰大的情况也比菲尼克斯要糟糕。
经济学家称，房地产泡沫崩溃是由建筑工人，买家和银行开始的。而这些人只是房地产
链条的其中一环，房地产衰退还远没结束。房地产网站Zillow的首席经济学家Stan
Humphries也表示，房地产低迷将会持续一段时间。
Zillow的数据显示，西雅图的房价已经从2007年中期的顶峰下跌了31%，并且还有10个
百分点的下跌空间。Stan Humphries预测美国其他地区的房价也将下跌5到7个百分点。
在西雅图这种房地产市场相对繁荣的地区出现房地产的衰退，说明房地... 阅读全帖 |
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a*****g
发帖数: 19398 | 12 GOP Senators: No More Money for Common Core
By Alyson Klein on April 7, 2014 3:48 PM
http://blogs.edweek.org/edweek/campaign-k-12/2014/04/gop_senato
Ten Republican senators don't want to see another dime of federal money
going to states in exchange for adopting certain academic standards. That
includes the Common Core State Standards, now embraced by 45 states and the
District of Columbia. The senators also don't want any more federal funding
going to develop assessments that go along with the c... 阅读全帖 |
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a*****g
发帖数: 19398 | 13 The year 2015 was one of exciting developments in the area of K-12 public
education in America. Unfortunately, most of the excitement was of the type
felt while witnessing a multi-car pile-up on the freeway. [See website]
Several of the worst crashes are detailed below.
January
Record-breaking snow fall in New England prompt school officials to order
snow shoes for all elementary school pupils so as not to miss a single day
of learning, which would render the children unready for career and coll... 阅读全帖 |
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a*****g
发帖数: 19398 | 14 By Diane Ravitch
A reader of the blog left this comment. I invite you to add your own
thoughts to the list.
One of the many utter FAILURES:
NO CHILD LEFT BEHIND: FAIL
ADEQUATE YEARLY PROGRESS: FAIL
RACE TO THE TOP: FAIL
COMMON CORE: FAIL
PARCC: FAIL
SBAC: FAIL
VALUE ADDED MEASUREMENT: FAIL
EdTPA: FAIL
TEACH FOR AMERICA: FAIL
COMPETENCY BASED EDUCATION: FAIL
USDOE: FAIL
JOHN KING: FAIL
ARNE DUNCAN: FAIL
DAVID COLEMAN: FAIL
ANDREW CUOMO: FAIL
MICHELLE RHEE: FAIL
BILL GATES: FAIL
A track record of ... 阅读全帖 |
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a********e
发帖数: 16 | 15 哈佛数学系150年 从三流学系到世界中心
丘成桐
哈佛大学 香港中文大学
最近我与我的朋友Steve Nadis写了一本关于哈佛大学数学系历史的书， 由哈佛大学出
版社出版。
这个写作计划开始时，我还是哈佛数学系主任。我对于这个系伟大先驱者的人生颇感好
奇。因为其中有些人藉着他个人的研究甚或透过他们的学生，改变了整个世界数学发展
的路径。
如果其他地方的人，能懂得欣赏这些数学家如何做研究，如何建立起这个优秀的学系，
而且在这段过程裡，还协助建立了哈佛大学的地位，我认为这会是很棒的事。更何况，
这些伟大哈佛数学家的个人轶事，读来也饶有兴味。
我喜欢阅读数学史，认为好数学家需要知道数学的重要概念如何演进。这些概念的演进
充满了生命力，就像从初生婴儿慢慢长大成人的过 程，这段路可能很戏剧化，而且充
满了兴奋与刺激。一旦我们了解数学发展的根源，就更能理解当今数学的发展。我相信
，哈佛数学系从 一个三流学系成长为世界级领导中心的过程， 提供了很值得参考的个
案，或许可以协助许多想建立世界级数学系的大学做为借鑑。我非常感谢我的合着者
Nadis，他做了十分广泛的研究，并採访了许多哈佛的教师与校友。... 阅读全帖 |
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a*****g
发帖数: 19398 | 16 GOP Senators: No More Money for Common Core
By Alyson Klein on April 7, 2014 3:48 PM
http://blogs.edweek.org/edweek/campaign-k-12/2014/04/gop_senato
Ten Republican senators don't want to see another dime of federal money
going to states in exchange for adopting certain academic standards. That
includes the Common Core State Standards, now embraced by 45 states and the
District of Columbia. The senators also don't want any more federal funding
going to develop assessments that go along with the c... 阅读全帖 |
|
c**t
发帖数: 316 | 17 【为保学生睡眠，美国中学推迟上课】
密苏里州哥伦比亚市——为了按时到校，吉莉·多斯桑托斯(Jilly Dos Santos)已经使
尽了浑身解数。她在手机上连着设了三个闹钟，早餐也顾不上吃，在父亲气冲冲驾车的
途中匆匆化妆。但即使这样，去年她几乎也从未成功在早上7:50预备铃响之前冲进石桥
高中(Rock Bridge High School)大门口蜂拥的学生群中。
然后她听说，学校董事会正准备将上课时间提前到7:20。
“我想要真这样我就死定了，”17岁的吉莉回忆道。“我会辍学的！”
就是从这时候起，这名总是睡眠不足的少女变身为睡眠捍卫者。她决心要说服学校董事
会，使他们也认识到她那疲惫、瘦高的身体一再告诉她的真相：青少年正处在生长发育
阶段，这注定了他们就是要晚睡晚起。学校董事会能不能根据这个生物学上的事实重新
调整预备铃的时间？
近20年来，试图推迟高中上课时间的运动一直进展得不温不火。但近来，日积月累的青
少年生物钟研究逐渐得到全美各地几十个学区中的数百所学校的普遍认同，就像吉莉所
在的社区这样，该活动的发展势头也随之改善。
仅仅在刚刚... 阅读全帖 |
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w******e
发帖数: 142 | 18 水木上看见的推荐列表，小多，呵呵。
入门：
Pattern Recognition And Machine Learning
Christopher M. Bishop
Machine Learning : A Probabilistic Perspective
Kevin P. Murphy
The Elements of Statistical Learning : Data Mining, Inference, and Predictio
n
Trevor Hastie, Robert Tibshirani, Jerome Friedman
Information Theory, Inference and Learning Algorithms
David J. C. MacKay
All of Statistics : A Concise Course in Statistical Inference
Larry Wasserman
优化：
Convex Optimization
Stephen Boyd, Lieven Vandenberghe
Numerical Opti... 阅读全帖 |
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y****d
发帖数: 432 | 19 【7】【Springer】GTM美国研究生数学书籍全集
LIST：
1 Introduction to Axiomatic Set Theory, Gaisi Takeuti, W. M. Zaring
2 Measure and Category, John C. Oxtoby
3 Topological Vector Spaces, H.H. Schaefer, M.P. Wolff
4 A Course in Homological Algebra, Peter Hilton, Urs Stammbach
5 Categories for the Working Mathematician, Saunders Mac Lane
6 Projective Planes, Hughes, Piper
7 A Course in Arithmetic, Jean-Pierre Serre
8 Axiomatic Set Theory, Gaisi Takeuti, Zaring
9 Introduction to Lie Algebras and Representation The... 阅读全帖 |
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L****n
发帖数: 12932 | 20 Hehe, maybe a stretch, as least after his NBA career. He's got my vote
======================
New York Knick sensation Jeremy Lin and U.S. Education Secretary Arne Duncan
, both former Harvard standout basketball players -- Duncan got a degree in
sociology, Lin in economics -- have known each other for a while. Lin was
once asked if any celebrities ever came to his Harvard games, and mentioned
only Duncan. The pair shot around together with Duncan's son at the 2011 All
-Star game. "Definitely co... 阅读全帖 |
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p*********y
发帖数: 2741 | 21 【 以下文字转载自 USANews 讨论区 】
发信人: lczlcz (lcz), 信区: USANews
标 题: WSJ:美国的大学泡沫终将破裂
发信站: BBS 未名空间站 (Fri Jan 10 14:39:38 2014, 美东)
RICHARD VEDDER / CHRISTOPHER DENHART
长期以来，美国的政治阶层都坚持认为高等教育是个人和国家迈向成功的必经之路。奥
巴马政府将大学称作“中产阶级门票”，包括教育部部长邓肯(Arne Duncan)和美国联
邦储备委员会(Federal Reserve, 简称：美联储)前主席贝南克(Ben Bernanke)在内的
诸多政治领导人，也都把高等教育视作为改善经济境遇的最好办法。家长们和高中辅导
员也比较认同这一观点。
然而尽管有着上述言论的规劝，美国高校新生人数自2012年以来还是下降了1.5%。是什
么因素导致了这一数量的减少？虽然人口方面的变化（尤其是上世纪90年代中期出生率
下降）部分地解释了这一转变，但它被外国学生数量的强劲增长所抵消。其实问题的答
案很简单——攻读大学学位的收益在减少，而成本却在增加。
... 阅读全帖 |
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C******g
发帖数: 2930 | 22 Naughty Dog's Arne Meyer recently announced on Playstation.Blog that the
half-tucked title would receive an update which addresses a number of
multiplayer issues today. On top of that, anyone who plays the game online
during this Halloween weekend will receive a treat infinitely more sweet
than a fistful of Necco Wafers: Loads and loads of (in-game) cash money.
Yes, the next few days will be a "Double Cash Weekend" for Uncharted 2
multiplayer matches. As you can probably suss out from the title, |
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B*Z
发帖数: 7062 | 23 来自主题: _Auto_Fans版 - 新款MDX Refreshed 2017 Acura MDX Makes World Debut in New York with Bold New Styling
, Upgraded Features and Sport Hybrid Powertrain
? 2017 MDX showcases new diamond pentagon grille first seen on the Acura Pre
cision Concept
? New Sport Hybrid powertrain delivers the ultimate in power and control whi
le gaining 35 horsepower and anticipated to add 7 mpg to city fuel economy r
ating
? AcuraWatch? safety and driver assist technology to be offered as standard
equipment on all 2017 MDX models
NEW YORK (Mar.... 阅读全帖 |
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w*******y
发帖数: 60932 | 24 For those of you who arn't trying to ship to an APO and can actually take
advantage of this deal... Regular price is $80
Link:
http://www.amazon.com/gp/product/...PDKIKX0DER
Technical Details
Wave-design ergonomic keyboard with cushioned palm rest for exceptional
typing comfort
Contoured laser mouse with rubber grips gives you smooth, precise cursor
control
Virtually no battery changes ? up to three years of battery life for the
keyboard and two years for the mouse* (* Keyboard and mouse battery... 阅读全帖 |
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p****i
发帖数: 6135 | 25 cmft， give yourself a break.
you weren't , arn't, will never be a loser. |
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h*****e
发帖数: 1330 | 26 最后10分钟貌似，domerdomain上说的：“I watched the O-line mostly:Pass
protection looked solid to me. Run blocking not good at all. Over all if
they play like they did the last 10 minutes we can win 8 and a bowl. If they
keep playing scared I don't know if we can win 6. You can blame Weis as
much as you want, but I do think the team as a whole need to get their heads
out of their asses and play up to their potential. They just arn't playing
fired up. In the grand scheme of things we played a game a lot like |
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p****s
发帖数: 32405 | 27 来自主题: _FantaSoccer版 - 意假2.0 订正了一下,决定把挪威人弄进来,即使是对那不勒斯
直接copy/paste, 方便glow等同学观看
GK:
Christian Abbiati MIL
D:
Francesco Pratali TOR
John Arne Riise ROM
Marco Di Loreto TOR
M:
Amantino Mancini INT
Sulley Ali Muntari INT
Esteban Cambiasso INT
Francesco Matuzalem LAZ
Alessandro Rosina TOR
F:
Mario Balotelli INT
Ronaldinho MIL |
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H****s
发帖数: 1130 | 28 Citrus medica L.
SYNONYM(S): Citrus medica L. var. cedrata Risso, Citrus medica L. var. medica
CHINESE : 枸橼Gou yuan, 香橼Xiang yuan, 枳壳Zhi qiao (fruit)
ENGLISH : Citron.
Citrus medica L. var. sarcodactylis (Hoola van Nooten) Swingle
SYNONYM(S): Citrus medica L. var. digitata (Lour.) Risso.
CHINESE : 佛手Fo shou, 佛手柑Fo shou gan.
ENGLISH : Fingered citron.
Citrus aurantium L. ssp. bergamia (Risso et Poit.) Wight et Arn. ex Engl.
SYNONYM(S): Citrus aurantium L. var. bergamia Loisel.,
Citrus bergam |
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s*****t
发帖数: 1994 | 29 Iridescent Clouds
Credit & Copyright: Arne Danielsen
Explanation: Why would clouds appear to be different colors? A relatively rare phenomenon
known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors
simultaneously. These clouds are formed of small water droplets of nearly uniform size.
When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds
significantly diffract sunlight in a nearly coherent manner, with d |
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s*****t
发帖数: 1994 | 30 A Gamma Ray Burst - Supernova Connection
Credit: Al Kelly (JSCAS/NASA) & Arne Henden (Flagstaff/USNO)
Explanation: New evidence has emerged that a mysterious type of explosion known as a
gamma ray burst is indeed connected to a supernova of the type visible in the above image.
Two weeks ago, the orbiting HETE satellite detected gamma-ray burst GRB030329. The
extremely bright burst was found hours later to have an extremely bright afterglow in visible
light, and soon set the record for th |
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