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全部话题 - 话题: brain
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c**i
发帖数: 6973
1
来自主题: Biology版 - Map of Fruit Fly's Brain
Nicholas Wade, Decoding the Human Brain, With Help From a Fly. New York
Times, Dec. 14, 2010.
http://www.nytimes.com/2010/12/14/science/14neuron.html?_r=1&scp=1&sq=taiwanese%20fly&st=cse
Note:
(a) Ann-Shyn CHIANG 江 安世
Professor, Brain Research Center, National Tsing Hua University
清華大學 腦科學研究中心
http://brc.life.nthu.edu.tw/html/about.html
g****1
发帖数: 261
2
Good job!
http://www.futureoftech.msnbc.msn.com/technology/futureoftech/1
An artificial “brain” built by a 17-year-old whiz kid from Florida is able
to accurately assess tissue samples for signs of breast cancer, providing
more confidence to a minimally invasive procedure.
The cloud-based neural network took top prize in this year’s Google Science
Fair.
“I taught the computer how to diagnose breast cancer,” Brittany Wenger,
the Lakewood Ranch resident, told me today.
“And this is really importan... 阅读全帖
c****x
发帖数: 17
3
Dear Colleagues,
We are inviting applications for 2 new tenure track faculty positions in the
Brain Science Institute at the Johns Hopkins University (see http://www.brainscienceinstitute.org/). The applicants should have interests in synapses and circuits in normal brain function or in cognitive disorders such as autism, schizophrenia and Alzheimer's disease. Applicants should be using molecular, cellular, developmental, systems or behavioral methods, have a Ph.D. or M.D., and a strong record o... 阅读全帖
s******y
发帖数: 28562
4
来自主题: Biology版 - Obama unveils brain mapping project
Obama 今天正式提出brain mapping project,第一年为之拨发的专门资金将是
100Million.
不过貌似这笔资金是给大牛们专用的。。。
http://www.usatoday.com/story/news/2013/04/02/obama-brain-mappi
d*****r
发帖数: 2583
5
来自主题: Biology版 - Obama unveils brain mapping project
The money should be divided up into small seeding funds and promote start-up
companies to run. It should be used as the competition award for the best
team who come up with the fastest algorithm, the most innovative imaging
tools, and the new chemicals designed to trace the connections. Small scale
competitions should be held to find the teams and then the work distributed
to several best teams who will deploy the new data into a centralized
database. A small biology team will conduct the funct... 阅读全帖
d*****r
发帖数: 2583
6
来自主题: Biology版 - Obama unveils brain mapping project
He was not at that stage yet...and he doesn't care (I feel)
He was only focusing on acquiring the anatomical data first. He thinks even
that will take his whole life span to finished. So all the algorithms he
was talking about was just to get the image data...
I think he knows very well that our generation is still too far from the "
functions" and "principles" of brain. So those exciting talks he gave were
only used to get enough money for him to get the anatomical data.
I know this sounds cra... 阅读全帖
b******k
发帖数: 2321
7
来自主题: Biology版 - Obama unveils brain mapping project
老实说我对生物学家有一点共性非常不感冒,那就是没事就把自己的研究往现实意义上
扯淡。我很怀疑别的基础科学家,数学家物理学家化学家,如果就是研究基础理论和现
象的,会不会没事发paper的时候要写上证明了XXX定理能帮助卫星上天;发现了XXX粒
子能帮助农业增产,或者发现了XXX化学键的某特性能帮助改良医疗器械?
从HGP到ENCODE到BRAIN initiative,这些自上而下组织起来的大工程,public image
都是要对解决人类健康问题有直接贡献。连这么基础的,甚至连具体目标都还需要论证
研究的BRAIN,居然也说我们的首要任务是解决PD。。。
也许生物学家们说的口滑已经不在乎了,或者他们发现不这么写首先自己的peer就不支
持不欣赏。但是这么做对这个学科没什么好处。我还记得当年北大有个教授发了篇某农
作物突变体的plant cell,里面号称这个能帮助该农作物增产云云。结果真的有不少农
民兄弟千里迢迢来询问怎么具体使用这个发现。从autism到cancer,从PD/AD到肝炎病
毒,我亲眼看到亲耳听到被忽悠的老百姓,中国的美国的,都不少。也许普通人被忽悠
了发现上当了就是... 阅读全帖
h****y
发帖数: 77
8
It's about aging. Any comment?
Turns out that the elusive Fountain of Youth may exist after all … in our
heads.
Scientists at the Albert Einstein School of Medicine say they’ve discovered
a brain region that may control aging throughout the entire body. By
manipulating that region, they were able to extend the lives of mice by 20
percent. The finding, detailed in a paper published in Nature on May 1, may
lead to new ways of warding off age-related diseases and increasing life
spans.
The hypothal... 阅读全帖
r******g
发帖数: 600
9
不是一般都是 brain的某一类细胞吗? 一般不会 brain cre吧
r******g
发帖数: 600
10
不是一般都是 brain的某一类细胞吗? 一般不会 brain cre吧
D*a
发帖数: 6830
11
其实绝大部分cre都不是完全特异性的,总会在其他某些地方有点表达。比如brain的,
如果要神经marker,周围神经系统很可能少不了。
如果没有这方面的数据,那就只能看运气。如果有这方面的数据,那就要看你的课题,
会不会冲突。比如你研究brain 跟糖尿病 那么leak到胰腺去了肯定不行,但是如果
leak到肺什么的,那也无所谓。然后还有就是运气,如果你做knockin(就是把一条
allele替换成cre),那么大概是没啥意外,如果你是弄bac后面接cre做随机插入,那
么它自己从哪里leak,你还真控制不了,只能多做几个line挑一挑。
n*********n
发帖数: 1534
12
来自主题: ChineseMed版 - Chinese med for brain tumor
buddy, you are still talking about chemical therapy
or at least you mistake TCm with chemical therapy

sorry I can not input Chinese. I am doing some research for brain tumor,
actually, we have mice model now. However, I hate using chemical therapy or
radiation etc methods to treat the tumor. I want to find some Chinese med
which can treat brain tumor so that we can find new drugs and figure out the
new pathway of tumor genesis.
I don't have much Chinese medicine knowledge, so I beg some informa
c**a
发帖数: 214
13
I saw someone post a website for brain teaser questions on this board some
time, but can't find it anymore. Can someone recommend any website that
has good brain teaser questions? Thanks a lot!
m******1
发帖数: 95
14
来自主题: Neuroscience版 - 谈谈对IBM Blue Brain Project看法吧
connectivity指的是神经元之间的拓扑关系,这种复杂的拓扑关系可能是神经网络能完成复杂功能的根本原因,也可能只是要素之一。所以一部分人包括我们认为,connectivity虽然重要,但可能并不是脑运算能力如此强大的最根本原因。有过一系列的实验证据表明,皮层这一级别的神经结构类似于通用计算机,连到visual input上就能做视觉处理,连到auditory input上就能做声音处理。这就好比说只要某块脑有足够数量的神经元,和足够多的互联,它就有了足够的信息表征能力(信息熵),至于具体怎么连接,未必重要。
不过这种观点仅仅限于皮层这种“通用结构”,一旦考虑到不同级别的神经结构譬如basal ganglia, cerebellum, spinal cord的互联,那connectivity就变得非常重要了。你说的计算机主板的例子很恰当,主板正是cpu、内存、板卡这些不同结构的互联,所以线打乱了就别玩了。通用结构不是主板,而是更类似于可编程的通用芯片,把互联的能力预留好就行,至于具体怎么连等用的时候再说。但类似Blue Brain的项目看上去不是在重建整个神经系统,而恰恰是在重建脑... 阅读全帖
m******1
发帖数: 95
15
来自主题: Neuroscience版 - 谈谈对IBM Blue Brain Project看法吧
部分同意,尤其你后面讲的这个理论框架很适合用来研究movement disorder的问题。
关于你列出的几点,还是有必要继续说说的。第一我给的两篇理论paper并不是fit数据,也不是解释现象,所以这条线上的理论研究并没有trivialize实验工作的意思。这个理论框架的要点在于,从数学上讲一个spiking network应该具备文中提到的特性,因此神经元组成的网络也具备这些特性。所以从工程角度来说,如果利用spiking network的特性造个分布式计算网络出来,可能会有很多意想不到的好处,好处包括做一些明显计算机比人差很多的事,如dealing with uncertainty,compliant movement control等等。另外的一个“好处”是这条理论延伸下去,如果连AI都能显著提升,那可能就很接近神经计算的本质了。不过这个“好处”尚属空中楼阁,目前可作茶余笑谈.
第二就有点涉及哲学了,这帖讲的是reverse engineering the brain,一般来说就算能在硅片上重建出来一个功能上和人脑完全一样的东西,仍然不能解释How the brain work... 阅读全帖
f**d
发帖数: 768
16
来自主题: Neuroscience版 - Brain Activity Map: 一群人联合起来了
我很奇怪一帮蠢人总是在持反对意见
对神经科学的发展,政府和老百姓一直希望专业神经科学人士能够找个努力发展的理由,
以好增加资助,做神经科学的不争气,一直闭门造车
终于有人站出来,搞个登月计划,
那帮不争气的人马上站出来不停地反对
猪头!

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movements
and
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Human
applications.
role
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training
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extraordinary
w*******y
发帖数: 60932
17
来自主题: _DealGroup版 - 【$】Brain Age 2 DS $4.99 FS @ Best Buy
Best Buy has Brain Age 2 for Nintendo DS for $4.99 with free shipping.
http://www.bestbuy.com/site/Brain+Age+2%3A+More+ Training+in+Minutes+ a+Day+-+Nintendo+DS/8402935.p?skuId=8402 935&productCategoryI d=abcat0707002&id=11 80742577635
It's $15.95 at Amazon.
w*******y
发帖数: 60932
18
Improve Your Memory, Improve Your Brain - Experience The Advantages That
Come With An Amazing Memory:
http://www.amazon.com/Improve-Your-Memory-Brain-ebook/dp/B004OA
j******3
发帖数: 18319
19
来自主题: _BaoziPlace版 - 两道brain teaser 题目 (转载)
【 以下文字转载自 BrainTeaser 讨论区 】
发信人: rungriffin (tobe,nottobe), 信区: BrainTeaser
标 题: 两道brain teaser 题目
发信站: BBS 未名空间站 (Wed Mar 3 23:52:34 2010, 美东)
发信人: csdfg (谁是东方郭), 信区: JobHunting
标 题: 两道brain teaser 题目
发信站: BBS 未名空间站 (Wed Mar 3 22:17:07 2010, 美东)
1 99个人,两两比赛, 需要多少次才能比出冠军
2 9个球, 有一个是坏的, 但是不知道是重还是轻, 给一个天平, 称多少次得出结果?
i**e
发帖数: 19242
20
Brain Rules by Dr. John Median
http://www.amazon.com/Brain-Rules-Principles-Surviving-Thriving/dp/0979777747/ref=sr_1_1?ie=UTF8&s=books&qid=1270070707&sr=1-1
很容易读也很有趣的一本书。推荐大家有空翻翻。
i**e
发帖数: 19242
21
第2章 Survival:The human brain evolved, too
人的大脑到底是怎么developed?大脑是拿来干什么用的呢?
看看作者的定义
Performance envelope: The brain appears to be designed to solve problems
related to surviving in an unstable outdoor environment, and to do so in
nearly constant motion.
脑子是用来解决生存问题的;当然是在不停的运动状态下,在外界多边的环境里来解决
跟生存相关的问题地;
人脑有抽象思维(运用字符思维)的能力,我们看到一个字符,可以由很多种联想;
人脑像一台机器,它可以像一个数据库一样储存很多知识信息;同时还有能力利用这个数据库来创造实践应用;(一个好的学校,要能平衡发展学生大脑的这俩个方面;基础知识雄厚,同时也要培养良好的创造创新运用能力);
如果外界条件不断恶化,人类想生存下去,要么变得更强壮要么变得更聪明;聪明,那就得脑子好使。一个好使的脑袋,需要一定的s
a**********l
发帖数: 268
22
来自主题: ChinaNews版 - 中国惨遭米帝吸脑 brain drain
中国惨遭米帝吸脑 brain drain
S*********4
发帖数: 5125
23
Even in the World War II, people knew they must turn off their lights during
night to stay away from bombs. So does anyone really think Chinese don't
know to dump the water inside the Dam, making the waterlevel the same with
that outside the dam, before the war?
The guy who's thinking bombing Three Gorge Dam can frighten Chinese did not
use his brain.
S*********4
发帖数: 5125
24
Before building the Three Gorge Dam, the warfare issue has been considered
thouroughly. I just ask anyone who's thinking bombing 3-Gorge-Dam to open
your eyes and use your brains: there is no chance at all.
l*m
发帖数: 1048
s*****V
发帖数: 21731
26
来自主题: Military版 - no brain 和 no heart
老将No brain,
小将No heart.

发帖数: 1
27
【 以下文字转载自 USANews 讨论区 】
发信人: rihai (海桑虎桑柱桑等倭杂之克星), 信区: USANews
标 题: Prenatal exposure to cannabis affects the developing brain
发信站: BBS 未名空间站 (Sun Jul 7 21:35:02 2019, 美东)
Children born to moms who smoked marijuana suffer higher rates of
depression,hyperactivity and inattention.
恭喜鸦片国, 贺喜鸦片国!
x******g
发帖数: 33885
28
来自主题: Military版 - 产党看不到中国面临brain drain
brain drain个屁,鸦片国花了几万亿连5G都搞不出,好意思说人家
k*******3
发帖数: 918
29
With the myth of the believers to the brain. "Eating and drinking myth" is
the "Almighty God" cult organization used to give believers the most
important means of. "Eat, drink, and myth" is the "Almighty God" the cult of
the internal language, meaning that believers are reading the book inside,
myth and poetry singing, listening to the recording, and on this basis will
be "myth" daily life as a criterion, "myth" to with other believers party "
traffic" to complete the brainwashing of entering th... 阅读全帖
l****z
发帖数: 29846
30
【 以下文字转载自 EB23 讨论区 】
发信人: roygreat (roy), 信区: EB23
标 题: “Brain” act纯属捣乱吗?
发信站: BBS 未名空间站 (Thu Sep 20 23:18:56 2012, 美东)
全盘照抄共和党的提案,就改了个绿卡来源。还是这周二匆匆提出的。根本就是给自己
投反对票找借口。
l*******i
发帖数: 2334
31
一直这么说的
You happened to come from Asia, you are number one in Harvard, you can't
get
in. You can go to Wharton School of Finance, which is the best business 
school. You can go and be a great genius and they throw you out of the 
country. Four years you stay, you do, you're number one in your class
you 
really smart, you want to stay in this country, you want to do a great job,&
#160;
you want to employ people, they say get out of here. It is unbelievable. So&
#160;
they go back to... 阅读全帖
l*********o
发帖数: 3091
32
【 以下文字转载自 Military 讨论区 】
发信人: liangmaomao (Amy Bishop 拿不到tenure就杀人的生物AP), 信区: Military
标 题: Trump演讲:为什么真正能做事的人没有留下来
发信站: BBS 未名空间站 (Wed Jan 20 23:05:01 2016, 美东)
9分45秒
你碰巧来自亚洲,你在哈佛拿第一名,你留不下来。你可以去沃顿商学院学金融,这是
最好的商学院。你可以是一个伟大的天才,他们叫你离开这个国家。你待了四年,你在
你们班第一,你很聪明,你想留在这个国家,你想要做的非常出色,你要创业要雇人,
他们说,离开这里。这是令人难以置信的。 所以这些人回到中国,回到韩国,回到他
们的国家。他们非常出色,击败了我们的大脑。他们是非常棒的。为什么我们要继续这
样做?为什么真正能做事的人没有留下来,而留下来的是那些越过边境的非法移民。我
有天晚上看新闻,边境执法者站在那里不动,看着数百人,大概上千人,走过美墨边境
,进入我们的国家。(掌声)
You happened to come from Asia, you are numb... 阅读全帖
g********2
发帖数: 6571
33
Oops! Hillary Suffers Brain Glitch During Opening Remarks (VIDEO)
Jim Hoft Sep 27th, 2016 7:43 am 33 Comments
Guest post by Joe Hoft
In her opening remarks in the biggest US Presidential debate in history,
Hillary Clinton had a glitch similar to a record skip. This was not
unexpected with all of the recent news about her health. At the 3:37 minute
into the debate, Hillary short circuited.
Hillary: …We also have to make the economy fairer. That starts with
raising the national minimum wage an... 阅读全帖
I*****d
发帖数: 90
34
来自主题: Faculty版 - Brain initiative R01
刚刚看到去年申请的Brain Initiative R01 的分数是34. 没有percentile。我是ESI.
NIMH 是primary institute. 各位有经验的前辈,怎么看这个分数。
l********n
发帖数: 804
35
来自主题: Faculty版 - Brain initiative R01
我觉得在boderline
可以问问pm

:刚刚看到去年申请的Brain Initiative R01 的分数是34. 没有percentile。我是ESI
. NIMH 是primary institute. 各位有经验的前辈,怎么看这个分数。
i******u
发帖数: 937
36
来自主题: Faculty版 - Brain initiative R01
不懂brain initiative, R01没percentile不知道怎么评价。问问PO看。

.
p*f
发帖数: 1
37
100个著名初等数学问题
以下100个问题大部分不需要复杂计算和高等数学知识,更不需要了解太多的
数学公式。如果建模正确,通常可以很快解答,非常适合面试的brain test,事实
上CS和Finance行业的很多面试问题都和他们大同小异。
有空的兄弟没事做做,可以锻炼思路。祝大家offer 多多。
第01题 阿基米德分牛问题Archimedes' Problema Bovinum
太阳神有一牛群,由白、黑、花、棕四种颜色的公、母牛组成.
在公牛中,白牛数多于棕牛数,多出之数相当于黑牛数的1/2+1/3;黑牛数多于棕
牛数,多出之
数相当于花牛数的1/4+1/5;花牛数多于棕牛数,多出之数相当于白牛数的1/6+1/7.
在母牛中,白牛数是全体黑牛数的1/3+1/4;黑牛数是全体花牛数1/4+1/5;花牛数
是全体棕牛
数的1/5+1/6;棕牛数是全体白牛数的1/6+1/7.
问这牛群是怎样组成的?
第02题 德·梅齐里亚克的法码问题The Weight Problem of Bachet de Meziriac
一位商人有一个
c******7
发帖数: 2586
38
来自主题: JobHunting版 - 贡献一个alarm.com的面经 brain teaser
一家小公司,做的类似x9 防盗系统什么的, software engineer position,问了一个
brain teaser如下:
问题:一共30个人在海岛上度假,来了两个有枪的海盗强迫30人前后排队站好,都带好
帽子(黑/白两色,数目任意),后面的只能看见前面的所有人,但是无法往回看,也看
不到自己帽子的颜色。从最后一个人开始,每个人喊出(猜自己帽子的颜色是黑还是白
),答对的活下,答错的仍下岛喂鲨鱼。其中一个海盗心眼好,在前一天内告诉了所有
被关起来的30人第二天会发生的事情,30个游客在一晚上内要决定好如何推出一个策略
去最大化的让最多的人活下来,问:策略是什么,最多可以保证有多少可以活下来?
G*******s
发帖数: 10605
39
来自主题: JobHunting版 - Brain Teasers
准备收集一些brain teasers and interview questions, 目前搞了几个,放在
http://www.mathriddles.info
这个是偏数学的(本人非计算机出身,不大懂算法和CS) 建议大家也弄个类似的CS的和
career cup类似的方便交流
f****r
发帖数: 1140
40
来自主题: JobHunting版 - 精华区的一道brain teaser..
我也这么想。。
另外,精华区好多brain teaser都没有答案啊。。。
e**c
发帖数: 195
41
来自主题: JobHunting版 - 问一道飞机加油的brain teasers题目
面试中被问到一道brain teaser,给了十分钟时间,没有做出来。Interviewer告诉我,十分钟做不出来很正常,他只是想看一下我做题的思路。回来之后,在网上搜了很久,没有找到,想和诸位大侠讨论一下:
背景:地球的北极点有一个空军基地,有无穷架飞机。所有飞机的配置一模一样。每一架飞机携带的汽油恰好能供飞机沿一条经线从北极点飞到南极点。如果两架飞机相遇,每一架飞机都可以在空中把自己的一部分或者全部汽油给另外一架飞机。
要求:设计一个策略,使一架飞机能够从北极点沿西经90度经线飞至南极点,然后沿东经90度经线返回北极点。也就是说,这架飞机的轨迹是一个完整的大圆。此策略必须满足以下条件:
(1)所有加油的飞机也必须返回北极点;
(2)要求用到的飞机最少。
K******g
发帖数: 1870
42
来自主题: JobHunting版 - 问个brain teaser的问题
凭直觉,如果对方是两个red,第三个答blue;对方是两个blue,第三个答red;如果一
个blue,一个red,第三个答“i do not know"。但是需要证明。我感觉这题不是什么
brain teaser,完全是道概率题。
c****l
发帖数: 1280
43
来自主题: JobHunting版 - a brain teaser question
I remembered that someone post a brain teaster question, but cannot find it
now. Based on my memoery, here is it:
a dice with all black surfaces and white inside. cut the dice into 27 small
cubes with 6 cuts. and take one to roll, what is the probabability that a
black surface is on the top?
=> is the question correct?
=> 6/(12+6 ) = 1/3 is the correct answer?
l*********r
发帖数: 674
44
来自主题: JobHunting版 - startup怎么尽问些brain teaser的题
面了个湾区的startup,没想到问了一堆brain teaser,分特阿.
都是经典题:
第一题是3个开关3个灯那个,
第二题是60mile的圈子,第一圈均速30,问第二圈多少才能均速60。
第三题是100盏灯,开始全灭,第一个人switch 1的倍数的灯,第二个人switch 2的倍
数,第3个人switch 3的倍数。。。第100个人switch 第100盏灯,问最后几盏亮的(就
是看约数的奇偶性)。
第四题,一杯牛奶一杯咖啡,牛奶舀一勺倒进咖啡,然后咖啡杯舀一勺倒进牛奶,问牛
奶里的咖啡多还是咖啡里的牛奶多(一样多)。
最后才问了个技术的:一个data storage file system,用什么数据结构比较好,容易
扩展,比如在存储不够的情况下,我都没太明白他说的什么意思,既然提到storage
data structure, 那就随便提一下B+ Tree,没想到他说就是等我说这个notion看我知
不知道,ft
j**w
发帖数: 382
45
来自主题: JobHunting版 - startup怎么尽问些brain teaser的题
Because lots American know those brain teasers before entering colleges, if
they think they are smart.
If they are really good in technology, or know how to make $$ from
technology, they can easily impress interviewees by asking serious questions
, but if not, they could only choose the ones they knew long time ago to
show their superior.
Personally I would pass those companies, even offers are on hands. That is
my wild guess and 0.02.
g*l
发帖数: 385
46
来自主题: JobHunting版 - startup怎么尽问些brain teaser的题
是不常见. 我面的 startup题都不难, 没有 brain teaser.
g*********e
发帖数: 14401
47
来自主题: JobHunting版 - brain teasing
这种也叫brain tease?
j*****s
发帖数: 189
48
刚刚结束M家电面,问了一些general question,然后brain teaser是50个红球,50个
白球,放入两个罐子中,问怎么放取得红球的概率最大。之前见过这道题,但是没细想
,没想到竟然真遇到了,正确答案是一个放1个红球,剩下的全放第二个。没答对会跪
么?求安慰。
r*******6
发帖数: 99
49
请问他家的onsite对CS专业的也会问brain teaser吗?还有就是貌似他们的design题不
多啊。。是不是主要也就是C++和coding的问题。希望这次能好运
D*********Y
发帖数: 3382
50
来自主题: JobHunting版 - brain teaser 做不出来怎么办?
问了俩teaser。居然都没figure out。但是面试官说我的思路是对的,不需要再做下去
了,按照这样的思路一定会做出来的。面试时间也超了。就结束了。是不是brain
teaser主要看过程不看结果啊?
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