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全部话题 - 话题: exposure
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s*****t
发帖数: 1994
1
11 Hour Star Trails
Credit & Copyright: Josch Hambsch
Explanation: Fix your camera to a tripod, lock the shutter open, and you can
make an image of star trails - graceful concentric arcs traced by the stars
as planet Earth rotates on its axis. Of course, the length of the star
trails will depend on the exposure time. While exposures lasting just five
minutes produce a significant arc, in about 12 hours a given star would
trace out half a circle. But in any long exposure, the background glow from
s*****t
发帖数: 1994
2
Eclipsed Moon and Stars
Credit & Copyright: Johannes Schedler (Panther Observatory)
Explanation: This dramatic image features a dark red Moon during a total
lunar eclipse -- celestial shadow play enjoyed by many denizens of planet
Earth last Saturday. Recorded near Wildon, Austria, the picture is a
composite of two exposures; a relatively short exposure to feature the lunar
surface and a longer exposure to capture background stars in the
constellation Leo. Completely immersed in Earth's cone-sha
s******y
发帖数: 28562
3
谢谢你贴出这个文章。非常有用的一个资料。比这个系列里很多空对空的争执
有用。
我得指出的一点是: EPA的这个资料里明确说了:他们只测了短期的毒性,
但是他们认为长期的毒性应该是由短期的毒性积累后引起的。所以在短期没有毒性
的情况下就没有测长期毒性的必要。
The acute oral toxicity data submitted support the determination that the
Cry1Ab protein is non-toxic to humans. When proteins are toxic, they are
known to act via acute mechanisms and at very low dose levels (Sjoblad, et
al.1992). Since no effects were shown to be caused by the plant-incorporated
protectants, even at relatively high dose levels, the Cry1Ab delta-
endo... 阅读全帖
f*******e
发帖数: 628
4
"In contrast to the widely reported toxicity of acute intoxication, reports
of effect following chronic exposure are infrequently reported".
10 ml 的一次性口服摄入叫 acute exposure。但是短暂吸入用来清洁实验台含有少量
甲醇的乙醇挥发产生的 vapor,要在短时间达到同样量的 exposure, 几乎不可能。日
积月累?你自己算算,每次你喷了多少,挥发产生的气体真正被你吸入了多少,你是不
是一直站在那里吸味儿。甲醇是小分子,很难想象在体内会积存而产生日积月累的效果。
实在不放心的话,乙醇可以算作甲醇的解毒品,在吸收代谢过程和甲醇竞争。

10ml
g****1
发帖数: 261
5
http://worldtruth.tv/monsanto-found-guilty-of-chemical-poisonin
A French farmer who can no longer perform his routine farming duties because
of permanent pesticide injuries has had his day in court, literally, and
the perpetrator of his injuries found guilty of chemical poisoning. The
French court in Lyon ruled that Monsanto’s Lasso weedkiller formula, which
contains the active ingredient alachlor, caused Paul Francois to develop
lifelong neurological damage that manifests as persistent memory l... 阅读全帖
l**********1
发帖数: 5204
6
>发信人: sunnyday (胖头鱼。按斤卖就赚了), 信区: Biology
标 题: Re: sunnyday,你再讲讲BT转基因粮食的看法吧
发信站: BBS 未名空间站 (Sun Oct 20 19:48:54 2013, 美东)
ignored stuff
如果中国的转Bt蛋白水稻被批
准的话,将是世界上第一个被广泛食用转Bt蛋白的作物
-----
哪国人都能用Bt 水稻或小麦, 但以三聚氰氨为代表的 '一切向钱看, 摸着石头过河'
的土鳖用了的话
有再来一次 <<寂静的春天>> 的 可能 范围是横跨整个欧亚大陆
http://zh.wikipedia.org/wiki/寂静的春天
n.b.
Cry1F Bt 不是对脊椎动物的 而是对非对象的有益无脊椎动物 比如蜜蜂等
土鳖可以做到致死率 不是以下论文的No. 4 的<1% 而是 No.3 >50% 吧
pls refer
3. The greatest source of variability in estimated mortality was species
sensitivity. Before... 阅读全帖
s*****o
发帖数: 2490
7
我是做杀虫剂毒理的,本版关于bt toxin在epa的风险评估是我最早提供的。关于对bt
toxin的毒理数据和风险评估的解读想和你探讨一下。
第一,bt toxin的acute toxicity的试验用到的剂量上限相当相当的高,EPA的risk
assessment里用到的是3.2mg/g,有的文献里是超过10mg/g,注意这是试验用到的最大
剂量,不是LD50,在这个剂量之下没有一只老鼠死亡。如果你做过oral toxicity就知
道,对小鼠或者大鼠来说这几乎是可以被撑死的剂量了(水的ld50是18mg/g,10mg/g的
水可能都会杀死一定比例的老鼠),这么大的量即使在胃内被降解大部分,也会有相当
多的剂量进入肠道,可是这么大的量没有产生mortality (epa的RA提到没有一只老鼠死
掉),这说明第一种可能,在鼠体内的蛋白酶对bt protoxin的切割是non specific的,
如果有切割的话,产生的active toxin的量相当低;第二种可能,active toxin与受体
的结合是non specific的,如果有的话;第三种可能,酶切和受体结合都是non-s... 阅读全帖
s******y
发帖数: 17729
8
来自主题: Biology版 - 诺委会太不像话了 (转载)
【 以下文字转载自 Military 讨论区 】
发信人: rbs (jay), 信区: Military
标 题: 诺委会太不像话了 (转载)
发信站: BBS 未名空间站 (Wed Oct 4 10:58:51 2017, 美东)
发信人: rbs (jay), 信区: Joke
标 题: 诺委会太不像话了
发信站: BBS 未名空间站 (Wed Oct 4 10:23:52 2017, 美东)
尼玛87篇参考文献就不能加一篇施教授或能教授的CNS?
References
1. Ruska, E., Nobel Lectures, Physics 1981-1990, Tore Frängsmyr and
Gösta Ekspong, Eds. (1993) World Scientific Publishing, Singapore
2. Marton, L. (1934) Electron microscopy of biological objects. Nature
133, 911-911
3. Althoff, T., Mi... 阅读全帖
y******m
发帖数: 143
9
来自主题: Biology版 - 马兜铃酸致肝癌 问题的严重性
首先nature Genetics这篇文章并不是特意去查AA signature,但是可以看出有非常高
的突变率,有文章The effects of HBV integration into the genomes of HCC
patients报道发现高somatic mutation 8957/sample,2.89/megabase。如果以概率1/
64(G*C or C*G),你在HBV患者中也能查到大概140/sample和AA signature类似突变
。而在这篇文章中,只有160/sample的signature。在他们图2中大概有30个病人是高表
达signature的。其它病人非常的少。如果HBV能引起类似变化,那么其它病毒,酒精,
黄曲霉素为什么不能引起相同的变异?而且AAsignature 当时只是在UTUC这个细胞系总
结出来的,并没有和其它致癌物引起的变异进行丛向和横向的比较。所以我个人觉得他
们推断是由AA引
起不可靠。
我同意你说的也许短期和长期不一样。但是在他们的另一个引文Selective toxicity
of aristolochic acids... 阅读全帖
y******m
发帖数: 143
10
来自主题: Biology版 - 马兜铃酸致肝癌 问题的严重性
这是发表在STM2013年的文章,实际上发现了HBV引起的突变和AA signature类似,但是
他们把它归为可能由AA引起的。最精彩的是最后一段,因为这些病人的AA exposure的
信息没法获取,所以推测是由AA引起的。这个还能没牙齿点嘛!!!仔细看了下,2017
年的样本也许就是2013年的样本,这个HBV样本AA signature分布和2017年的图2是基本
一样的。
We detected 11 cases exhibiting strong AA (or AA-like) mutational signatures
using the following criteria: (i) A > T is the most frequent mutation
category or there are ≥10 exonic A:T to T:A transversions; (ii) ≥33% of
the A:T to T:A transversions are associated with a C|TAG sequence context;
and (iii) a s... 阅读全帖
y******m
发帖数: 143
11
来自主题: Biology版 - 马兜铃酸致肝癌 问题的严重性
首先nature Genetics这篇文章并不是特意去查AA signature,但是可以看出有非常高
的突变率,有文章The effects of HBV integration into the genomes of HCC
patients报道发现高somatic mutation 8957/sample,2.89/megabase。如果以概率1/
64(G*C or C*G),你在HBV患者中也能查到大概140/sample和AA signature类似突变
。而在这篇文章中,只有160/sample的signature。在他们图2中大概有30个病人是高表
达signature的。其它病人非常的少。如果HBV能引起类似变化,那么其它病毒,酒精,
黄曲霉素为什么不能引起相同的变异?而且AAsignature 当时只是在UTUC这个细胞系总
结出来的,并没有和其它致癌物引起的变异进行丛向和横向的比较。所以我个人觉得他
们推断是由AA引
起不可靠。
我同意你说的也许短期和长期不一样。但是在他们的另一个引文Selective toxicity
of aristolochic acids... 阅读全帖
y******m
发帖数: 143
12
来自主题: Biology版 - 马兜铃酸致肝癌 问题的严重性
这是发表在STM2013年的文章,实际上发现了HBV引起的突变和AA signature类似,但是
他们把它归为可能由AA引起的。最精彩的是最后一段,因为这些病人的AA exposure的
信息没法获取,所以推测是由AA引起的。这个还能没牙齿点嘛!!!仔细看了下,2017
年的样本也许就是2013年的样本,这个HBV样本AA signature分布和2017年的图2是基本
一样的。
We detected 11 cases exhibiting strong AA (or AA-like) mutational signatures
using the following criteria: (i) A > T is the most frequent mutation
category or there are ≥10 exonic A:T to T:A transversions; (ii) ≥33% of
the A:T to T:A transversions are associated with a C|TAG sequence context;
and (iii) a s... 阅读全帖
d****i
发帖数: 360
13
来自主题: Chemistry版 - dioxane is toxic to the liver and kidney.
Dioxane is an irritant of the eyes and mucous membranes. Prolonged exposure
to dioxane is toxic to the liver and kidney. Exposure to concentrations of
300 ppm for 15 minutes caused transient eye, nose and throat irritation [
Hathaway et al. 1991]. At 1,600 ppm, subjects reported burning of the eyes,
and tearing after 10 minutes. Five workers died after an exposure to dioxane
described as "heavy"; signs and symptoms included stomach pain, vomiting,
anorexia, scanty urine, and coma. Autopsy reveal
f****y
发帖数: 33
14
本公司是位于上海附近的一家从事高速网络集成电路开发设计的初创公司,主要产品是
高端网络交换机芯片.我们迫切寻找在该领域工作多年,有丰富经验的海外优秀人才加盟
我公司.
我们现特招聘交换机芯片高级系统架构师,交换机芯片高级ASIC设计和验证主管,软件设
计和测试主管.我们的待遇优厚.如有兴趣,或要了解更多详情, 可以站内联系我.
职位详细介绍:
1) Ethernet Switch System Senior Architect
Job Description:
Responsible for defining ASIC SOC chip & system architecture for Ethernet
communications switch devices. The candidate must have eight or more years
experience with silicon device architectures, with at least five years
experience with Ethernet communications devices... 阅读全帖
f****e
发帖数: 923
15
【 以下文字转载自 JobMarket 讨论区 】
发信人: rexrliu (Rex), 信区: JobMarket
标 题: Research Associate/Postdoctoral Positions Available at UCLA
关键字: Postdoctoral,Research Associate,data mining,risk analysis,nanomaterial
发信站: BBS 未名空间站 (Tue Apr 16 16:56:33 2013, 美东)
Associate/Postdoctoral positions are available at the UCLA/National Science
Foundation (NSF) Center for the Environmental Implications of Nanomaterials
(CEIN) in the Environmental Decision Analysis (EDA) team focusing on the
development of approaches a... 阅读全帖
w*******4
发帖数: 17
16
FOUND THIS SOMEWHERE, MAYBE USEFUL.
ENJOY.
WARNING: I COPIED THIS FROM AN INDIA FORUM, MAYBE THERE ARE MISTAKES, CHECK
IT BEFORE REMEMBER IT.
SYNDROMES
ENVIRONMENTAL CAUSES
• ACUTE RADIATION SYNDROME: Radiation
exposure.
o 12 hours post-exposure: Vomiting
o 24 hours post-exposure: Prostration (extreme
exhaustion), fever, diarrhea
o Later: Petechial hemorrhage, hypotension,
tachycardia, profuse bloody diarrhea, maybe
death.
• CHINESE RESTAURANT SYNDROME: MSG
reaction ------> Chest P
w***0
发帖数: 222
17
来自主题: MedicalCareer版 - 我好难过,会被传染上结核吗
two things I will discuss---your exposure to "active TB" and the BCG.
First of all, I don't believe your post. However, It might be a good
chance
to talk about BCG and TB exposure.
I don't know where you are practicing or if you are a dentist, or
assistant.
the tuberculosis, especially active, is a affirmative reportable
disease
to the State; and the patient has been documented and been regulated for
his
/her activities. If the patient is in the US, it is very strange to see.
if you did have cl... 阅读全帖
w***0
发帖数: 222
18
来自主题: MedicalCareer版 - 我好难过,会被传染上结核吗
two things I will discuss---your exposure to "active TB" and the BCG.
First of all, I don't believe your post. However, It might be a good
chance
to talk about BCG and TB exposure.
I don't know where you are practicing or if you are a dentist, or
assistant.
the tuberculosis, especially active, is a affirmative reportable
disease
to the State; and the patient has been documented and been regulated for
his
/her activities. If the patient is in the US, it is very strange to see.
if you did have cl... 阅读全帖
D**********r
发帖数: 17
19
本人情况:10年前医学院毕业,三年后又拿了一个内科临床master。 现在美国在读ph.
d.,刚刚submit第二篇作为一作的文章。以前一直是单打独斗的准备step1和ck,本来
想加把油考完cs去参加今年的match,但由于准备确实是不够,实在不敢冒险去考,决
定要去上个培训班,所以不得不改期,而且由于考场都满了,只能改到明年年初考。那
么今年的match肯定没戏。突然这样停下来,有种四顾何茫然的失落,而且听说往后
match会越来越难,所以心里的那种悬空感真是 。。。所以想征求大家的看法,希望能
听到有建设性的真诚的声音。
算是优势吧:1。 本人性格开朗,喜欢和别人打交道,虽然过去三年中因为要拼命准备
考试,而且要和出名tough的老板周旋,性格变得有点沉闷的说 。。。 但是本质还是
比较阳光的。2。 语言能力还不错。3。 名校ph.d., 因为老板很push,所以文章质量
还凑合, 目前一作两篇,二作或三作两篇。
劣势 (很多):1。 毕业年限长。2。 还在跟LD等绿卡,估计要个两三年,所以肯定
是要在这段时间内把step3 拿下。 3。 临床exposure不是没有,但只限于... 阅读全帖
j****c
发帖数: 19908
20
【 以下文字转载自 Quant 讨论区 】
发信人: jjjstc (买买提就是一个垃圾处理站), 信区: Quant
标 题: 猎头公司发给我的关于高盛五个quant职位的email
发信站: BBS 未名空间站 (Tue Feb 15 14:09:32 2011, 美东)
两星期前发的,估计这人喜欢没事在各大学校物理系网站瞎逛,看到要毕业的就发
email,我第一次直接拖到垃圾箱里了,过了五天又发了一次。我对这个行业没兴趣,
今天刚知道这个版,转贴到这里,不知道这些信息是否有用
From: Clint Tankersley [mailto:c***[email protected]]
Sent: Monday, January 31, 2011 9:16 AM
To: 'j****[email protected]'
Subject: Clint / Ignited
jjjstc:
We’ve not spoken, so my name won’t be familiar. I visited your mitbbs Web
page, however, so I know you’re... 阅读全帖
m*******e
发帖数: 13
21
来自主题: Quant版 - 如何解 conditional PD
问个很弱的问题,不过很头疼,明天要给老板交差。。。。
Basel 2 的计算credit valuation adjustment (CVA),
公式是:
CVA = sum of (expected exposure * DF * Conditional PD * LGD);
expect exposure 是每个时间段的positive cash flow,
请问,我知道从现在开始到1年的 absolute PD is .01 (从internal rating ),
我只有1个 expected exposure,在30天之后,请问如何求 conditional PD,
谢谢,说白了就是通过 absolute PD, 如何求 conditioanl PD 的问题。
j****c
发帖数: 19908
22
两星期前发的,估计这人喜欢没事在各大学校物理系网站瞎逛,看到要毕业的就发
email,我第一次直接拖到垃圾箱里了,过了五天又发了一次。我对这个行业没兴趣,
今天刚知道这个版,转贴到这里,不知道这些信息是否有用
From: Clint Tankersley [mailto:c***[email protected]]
Sent: Monday, January 31, 2011 9:16 AM
To: 'j****[email protected]'
Subject: Clint / Ignited
jjjstc:
We’ve not spoken, so my name won’t be familiar. I visited your mitbbs Web
page, however, so I know you’re a physics Ph.D. student there. I’m a
headhunter with 12 years of experience recruiting technologists, technology/
project managers, busines... 阅读全帖
n****3
发帖数: 23
23
来自主题: Quant版 - Junior Risk Quant Opening (Shanghai)
The group mentioned below is looking to add more positions. Please contact
me with in-site mail if you are interested. Please also indicate when you
will be available to be on-board in Shanghai.
----------------------------------------------------------------
Our firm is opening an “Advanced Analytics Center” for Risk Methodologies
in Shanghai’s Financial District. If you are interested and also match
the requirements, please contact me with in-site mail.
(Note these are local positions and ... 阅读全帖
I****k
发帖数: 35
24
Title: Quantitative Risk Analyst
Level: Entry-level
Employer: Major US Bank
Location: Shanghai, China
Job Descriptions
- Utilize statistical/quantitative techniques to analyze market data;
develop and improve algorithms of time-series analysis.
- Responsible for the construction of covariance matrices that are used in
the simulations of Value-at-Risk (VaR) and counterparty risk exposure
calculations.
- Perform profit attribution analysis and hypothetical backtesting on
tradable products.
- R... 阅读全帖
j*******4
发帖数: 5
25

/* */谢谢!!!
不好意思,我忘了把简历贴上。谢谢大家的帮忙!!!
Fei Jiang
PROFILE
Master of Public Health candidate concentrating in Biostatistics.
Experienced in study design, data collection, database management, the
methods and techniques of statistical analysis such as linear regression,
logistic regression, survival data analysis and correlated data analysis.
Over 5 years’ experience utilizing statistical analysis software SAS and
SPSS. Efficient in both a team environment and working independently.
Exceptional wri... 阅读全帖
z*******2
发帖数: 2643
26
来自主题: Medicalpractice版 - 统计教授, help please
A third variable can be confounding Only when it is associated with BOTH the
exposure AND the outcome. Association only with exposure or only with
outcome is not sufficient for a factor to be confounding. In other words,
when the Association between an exposure and an outcome is distorted by a
third variable, you got a confounding bias.
b******a
发帖数: 704
27
Common Causes of Pneumonia
In a young patient without coexisting illnesses, there are many potential
infectious causes of pneumonia.1 The patient's history gives us several
clues that help in reducing the list of possible pathogens. This patient
underwent bronchoscopy and bronchoalveolar lavage. Negative bacterial
cultures argue against common, easy-to-culture bacterial pathogens.
Furthermore, the patient did not have a response to multiple, broad-spectrum
antibacterial therapy including erythro... 阅读全帖
z*******n
发帖数: 1034
28
来自主题: MobileDevelopment版 - 分享使用ASO提升App Store排名的技巧
http://gamerboom.com/archives/83850
发布时间:2014-05-19 12:31:16 Tags:ASO,IAP名称,下载量,应用名称,应用描述
作者:Fernando Vaquero
曝光度,是所有资金短缺的开发者让自己的游戏进入市场的一大短板。
那么你该如何在App Store获得曝光度?如果你认为ASO是一个选择,那么你就走对路了!
更多用户主要是通过检索来发现应用。通过这一途径获得曝光度的应用数量远甚于口头
传播,以及浏览热门榜单等途径。
关于如何使用(ASO)应用商店优化策略,大家已经形成了不少共识。我们将与你分享
利用检索“Ludo”这个字段推动我们自己的游戏进入美国App Store榜单第二名的一些
最佳做法和经验。
A - ASO new app discovery methods(from Forrester Research)
A – ASO new app discovery methods(from Forrester Research)
令你的游戏进入App Store榜单前十名可能是项棘手事务,但如果参照一些指导建议并
付出... 阅读全帖
w*******y
发帖数: 60932
29
Canon A2200 Black 14.1 MP 2.7" 230k LCD 28mm Wide Angle Digital Camera
+ Free 4GB SD card & case w/ purchase, limited offer
after using Promo Code
EMCYTZT662
Limite 1 per customer
Also Available in
White- Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16830120481
Blue - Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16830120480
Red - Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16830120482
General
Brand
Canon
Series
PowerShot A Series
Model
A2200
Di... 阅读全帖
t******g
发帖数: 462
30
来自主题: _Stockcafeteria版 - Where Is All That Corporate Cash, Anyway?
American corporations are sitting on record amounts of cash, but that doesn'
t mean their greenbacks are safely tucked away at a bank down the block from
headquarters. To the contrary, billions of dollars worth of corporate cash
and short-term securities sit in foreign subsidiaries located in undisclosed
countries. A lot of this money might not even be in dollars.
In a serene world with healthy financial markets, the whereabouts of all
this cash might give few people pause. But Europe's sovereig... 阅读全帖
t******g
发帖数: 462
31
来自主题: _Stockcafeteria版 - Where Is All That Corporate Cash, Anyway?
American corporations are sitting on record amounts of cash, but that doesn'
t mean their greenbacks are safely tucked away at a bank down the block from
headquarters. To the contrary, billions of dollars worth of corporate cash
and short-term securities sit in foreign subsidiaries located in undisclosed
countries. A lot of this money might not even be in dollars.
In a serene world with healthy financial markets, the whereabouts of all
this cash might give few people pause. But Europe's sovereig... 阅读全帖
m**x
发帖数: 75
32
来自主题: _pennystock版 - 肥牛,BAC跌破12可不可以进?
Too much risk involved for now
http://finance.yahoo.com/news/Is-Bank-Of-America-The-Most-siliconalley-1979657808.html?x=0&.v=1
Is Bank Of America The Most Exposed If There's A Brand New Mortgage-Bond
Scandal?

Gregory White, On Wednesday October 13, 2010, 2:57 pm EDT
Earlier, we wrote about Felix Salmon's contention that there's a new
mortgage fraud scandal that has the potential to dwarf Goldman's ABACUS
dealings. In this fraud scenario, banks took advantage of their information
advantage and ... 阅读全帖
g********n
发帖数: 2314
33
来自主题: _GoldenrainClub版 - 一个关于stress test 的未经证实的谣言。
http://messages.finance.yahoo.com/Stocks_(A_to_Z)/Stocks_D/thre
LEAKED INFO.. JUST OUT POSTED FORM BAC BOARD 48 minutes ago
Found this just posted on BAC board thought FAZ board would find it
interesting.....
The Turner Radio Network has obtained "stress test" results for the top 19
Banks in the USA.
The stress tests were conducted to determine how well, if at all, the top 19
banks in the USA could withstand further or future economic hardship.
When the tests were completed, regulators w... 阅读全帖
M*****h
发帖数: 890
34
来自主题: _PerfectMoms版 - 是不是non-organic的祸?
那看看这篇吧:
GMOs in Food: Genetically Modified Food & Our KidsHarmVille: Part 31 of our
award-winning series "Our Children's Health"
By Jaclyn Gallucci on August 12th, 2010
She calls it Franken-food, genocide.
Strawberries grown from seeds injected with DNA from arctic flounder fish to
make them frost resistant. Seeds pumped with suicide genes that yield an
infertile harvest so corporations can profit from a patent placed on the
plant’s genetic code. Rice injected with traits that make it more
nutri... 阅读全帖
s*****t
发帖数: 1994
35
来自主题: _Astronomy版 - Astronomy Picture of Day: 11 Hour Star Trails
11 Hour Star Trails
Credit & Copyright: Josch Hambsch
Explanation: Fix your camera to a tripod, lock the shutter open, and you can
make an image of star trails - graceful concentric arcs traced by the stars
as planet Earth rotates on its axis. Of course, the length of the star
trails will depend on the exposure time. While exposures lasting just five
minutes produce a significant arc, in about 12 hours a given star would
trace out half a circle. But in any long exposure, the background glow from
s*****t
发帖数: 1994
36
Eclipsed Moon and Stars
Credit & Copyright: Johannes Schedler (Panther Observatory)
Explanation: This dramatic image features a dark red Moon during a total
lunar eclipse -- celestial shadow play enjoyed by many denizens of planet
Earth last Saturday. Recorded near Wildon, Austria, the picture is a
composite of two exposures; a relatively short exposure to feature the lunar
surface and a longer exposure to capture background stars in the
constellation Leo. Completely immersed in Earth's cone-sha
p**********t
发帖数: 2636
37
来自主题: _Climbing版 - 在看Red Rocks的supertopo
其实leading的时候我从来不觉得exposure是个问题。反倒ledge是要留心的。exposure
只是看上去很爽让人想爬而已。离开地以后exposure与安全性就没有什么关系了
c**i
发帖数: 6973
38
来自主题: ChinaNews版 - Is China the Next Japan or the Next Mexico?
(1) Tom Orlik, China Risks a Mexican Standoff. Wall Street Journal, Sept 13,
2011 (title in print).
http://online.wsj.com/article/SB100014240531
11904353504576566521762785388.html?KEYWORDS=Tom+Orlik
My comment: The analysis talks about Mexico, "China took export share and
growth stalled." That is, China took export share of mexico and Mexico's
growth stalled.
(2) Lingling Wei, China's New Lenders of Last Resort. Wall Street Journal,
Sept 13, 2011
http://online.wsj.com/article/SB100014240
5311190... 阅读全帖
n**e
发帖数: 2026
39
网络世界一直在关注朱令案,对于投毒方式作出各种猜想完全是正常的。不正常的是有
这么一些人,专门以伪造事实杜撰科学理论为手段,造成一个只有与朱令朝夕相处才能
下毒的假象,处心积虑把投毒的罪名安在最接近朱令的人身上。还要编出一个经过专家
鉴定的故事,甚至直接伪装成专业人员用虚假信息误导公众。《朱令铊中毒案真相调查
分析报告》造成的就是这种效果。
《朱令铊中毒案真相调查 分析报告》一度在网络引起轰动。报告自称逐一寻访已分散
在世界各地的重要证人,获得了中、美、法、加等国十余位医学、药理、化学、法律、
犯罪心理学等专业人士的帮助。核实澄清上百个重要问题,堪称世界历史上最强大的犯
罪调查。调查结论,朱令铊中毒的第一渠道:隐型眼镜盒。专门研究铊的毒理学家证实
:由于铊是一种强烈神经毒物,可以损害人的视觉神经,如果人的眼睛接触了铊,就会
出现视力模煳、甚至失明的症状。
尼罗河的专业不是眼科,眼科的知识只有大学本科水平。但是也决不会闹出在隐形眼镜
盒里下毒的笑话来。简单做一个角色扮演。如果我想用铊盐使一个人失明,应该把毒药
下在眼睛里还是鼻子里。当然不是眼睛里。下面就告诉你为什么。
首先,铊盐的毒性是... 阅读全帖
n**e
发帖数: 2026
40
【 以下文字转载自 WaterWorld 讨论区 】
发信人: nile (nile), 信区: WaterWorld
标 题: 清华投毒案——眼科问题,科学求证。
发信站: BBS 未名空间站 (Mon Feb 15 17:13:09 2016, 美东)
《朱令铊中毒案真相调查分析报告》自称逐一寻访已分散在世界各地的重要证人,获得
了中、美、法、加等国十余位医学、药理、化学、法律、犯罪心理学等专业人士的帮助
。核实澄清上百个重要问题,堪称世界历史上最强大的犯罪调查。调查结论,朱令铊中
毒的第一渠道:隐型眼镜盒。专门研究铊的毒理学家证实:由于铊是一种强烈神经毒物
,可以损害人的视觉神经,如果人的眼睛接触了铊,就会出现视力模煳、甚至失明的症
状。
尼罗河的专业不是眼科,眼科的知识只有大学本科水平。但是也决不会闹出在隐形眼镜
盒里下毒的笑话来。简单做一个角色扮演。如果我想用铊盐使一个人失明,应该把毒药
下在眼睛里还是鼻子里。当然不是眼睛里。下面就告诉你为什么。
首先,铊盐的毒性是针对视网膜和视神经而非眼睛的光学系统(角膜、晶状体和玻璃体
)。铊盐需要通过血流才能与视网膜接触。而外眼除了结... 阅读全帖
o***s
发帖数: 42149
41
TA 们不是都市传说中道德败坏的陌生人,也不是让人闻风丧胆的犯罪者,而就是我们身边的友人,你某个亲切又能干的同事,或是一个曾经和你目光交汇火花四溅却没了下文的暧昧对象。
艾滋病日将至,我们做了这个名叫 “你好,HIV” 的专题,向 HIV 说你好,向艾滋病说你好,向 “因艾而异” 的普通人们说你好。
“我有 HIV”,身边有两个人跟我说过这句话。
小东是我六年前做一个学术研究时找的受访者。他二十出头,是个学生,来这个城市不久。正式访谈之前,我们见过几次面,不时网上聊天。有一次我带他出去,想介绍几个朋友给他认识。小东的傻萌气质让聊天进行得非常轻松愉快,一个朋友恨不得当场认他做弟弟,“这傻小子太好玩了”。
如果必须绝对诚实,我心里知道,至少当时我没拿他当严格意义上的朋友。如果不是为了访谈,我们几乎毫无交集,甚至不会认识。但我感激他给我机会去探究和呈现他的生活,所以在研究者跟受访者这层关系之外,我觉得应该回馈他。
这些伪善的心理角落在他告诉我他是艾滋病毒感染者的时候彻底浮上水面。因为自己当时的反应太差劲了,我至今耻于和任何人说起 —— “我和他吃了几顿饭?有没有共用餐具?我当时口腔里有没有伤... 阅读全帖
h****o
发帖数: 2455
s********n
发帖数: 26222
43
你们自己看一下。 这个网站貌似是香港人或者台湾人搞的网站。
http://multipletext.com/2010/9_deputy_sheriff.htm
The following is the main point of an article penned by the chief Beijing
correspondent for Morning News (新闻晨报驻京首席记者):
There was a time when I began to wonder from where Fang got money to support
himself and his family. Later Professor Xiao Chuanguo (肖传国教授) launched
defamation case against Fang in a US court and asked his US lawyer to
investigate Fang's website that is largely used to publically smear anyone
and anyt... 阅读全帖
P*****t
发帖数: 4978
44
来自主题: Military版 - 已经有人被查出辐射过量了
来源cnn
On Saturday night, three patients at a hospital tested positive for
radiation exposure, according to the Japanese public broadcasting station
NHK, citing a statement from Fukushima Prefecture.
The three were randomly selected from a group of 90 hospital workers and
patients who were already at the medical facility -- about three kilometers
from the Daiichi plant -- before Friday's massive quake. The patients were
outside of the hospital awaiting evacuation at the time of the explosion.
Whi... 阅读全帖
D*****r
发帖数: 6791
45
http://www.reuters.com/article/2011/03/15/us-japan-quake-idUSTR
By Taiga Uranaka and Ki Joon Kwon
FUKUSHIMA, Japan | Tue Mar 15, 2011 4:01am EDT
(Reuters) - Japan faced potential catastrophe on Tuesday after a quake-
crippled nuclear power plant exploded and sent low levels of radiation
floating toward Tokyo, prompting some people to flee the capital and others
to stock up on essential supplies.
Prime Minister Naoto Kan urged people within 30 km (18 miles) of the
facility north of Tokyo to remai... 阅读全帖
h****i
发帖数: 302
46
http://www.smh.com.au/environment/japan-on-maximum-alert-over-n
Japan's Prime Minister Naoto Kan says his government is in a "state of
maximum alert" over the crisis at the stricken Fukushima nuclear plant.
Jiji Press reports that Kan has told a lower house budget committee meeting
that the situation "continues to be unpredictable" and that the government "
will tackle the problem while in a state of maximum alert", Jiji reported.
Mr Kan's comments came as the operator of the stricken plant said... 阅读全帖
b*******y
发帖数: 4304
47
摘自 WIKI:
Conspiracists devote much of their efforts to examining NASA photos.
They point to oddities in photographs and films purportedly taken on
the Moon. Photography experts (even those unrelated to NASA) answer
that the oddities are what one would expect from a real Moon landing,
and not what would happen with tweaked or studio imagery.
Conspiracists also argue that whistleblowers may have knowingly
tweaked photos in hope of uncovering NASA. Some of the main arguments
and counter-arguments ... 阅读全帖
d********a
发帖数: 3698
48
http://www.ncbi.nlm.nih.gov/pubmed/21338670
我上面转的这个文章2011年5月发表于Reproductive Toxicology,
是第一篇关于杀虫剂改基因植物的毒性文章,发表1个多月就有3个引用。
引发了很多同行讨论,这个说明就是欧美专业人士也不是很清楚改基因食物的毒性。
Dear Friends and colleagues,
RE: Maternal and Fetal Exposure to Pesticides Associated with GM Foods
An article in press in Reproductive Toxicology is the first to highlight the
presence of pesticides associated with foods genetically engineered to
tolerate various herbicides and insecticides in pregnant and non-pregnant
women. The study i... 阅读全帖
s*********8
发帖数: 901
49
来自主题: Military版 - HSBC to cut 10,000 jobs, after Cisco
And billionaire hedge-fund manager John Paulson thinks it's going lower…
Paulson, whose fund recently lost on financials and Chinese reverse merger
Sino Forest, admitted he was "too aggressive" in his positions. Currently,
his net long exposure is around 60%, down from 81%. "Eighty-one percent was
way too high. We cannot operate the fund at that level," Paulson said on a
call to investors. "I'd like to bring the risk down further to about 50%."
In addition to diversifying his financial holdings ... 阅读全帖
s********n
发帖数: 26222
50
人工甜味剂:另一种用以消减第三世界国家人口的利器
除了转基因食品外,人工甜味剂也是向第三世界国家大加推广,可以有效降低人群生育
力的西方发明。
Reproductive toxicity -- Saccharin: Introduction
Reproductive toxicity -- Saccharin: Saccharin is a suspected reproductive
toxicant and exposure to it has the potential to negatively affect the human
reproductive system. Saccharin is used as an artificial sweetener. The
severity and nature of the adverse effect is variable and can be influenced
by factors such as sex, level of exposure and individual sensitivity to the
chemi... 阅读全帖
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