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全部话题 - 话题: acids
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s**l
发帖数: 11983
1
来自主题: NorthEast版 - avoid GMO, and 非转基因产品
strongly recommend this project and its website:
http://www.nongmoproject.org/
GMOs, or “genetically modified organisms,” are plants or animals created
through the gene splicing techniques of biotechnology (also called genetic
engineering, or GE). This experimental technology merges DNA from different
species, creating unstable combinations of plant, animal, bacterial and
viral genes that cannot occur in nature or in traditional crossbreeding.
For consumers, it can be difficult to stay up-to-dat... 阅读全帖
s****2
发帖数: 4569
2
【 以下文字转载自 NewJersey 讨论区 】
发信人: dw54 (纯爷们), 信区: NewJersey
标 题: 別再吃了! 你家有芥花油 (Canola oil) 嗎?--Very urgent
发信站: BBS 未名空间站 (Mon Sep 19 15:06:27 2011, 美东)
disclaimer发这个帖子不代表我endorse之
今天收到的Chain E-mail。有没有懂行的评论一下?
——————————————————————————————————————
——————
Canola 油的迷思與真相
大約是十幾年前,市面上突然出現了一種新的烹飪油,英文叫做 Canola Oil。起先只
有在專賣 ”健康自然產品” 的店裡才能看到,但是因為政府及私人公司都廣為宣傳這
種油的好處:純植物提煉、不飽和性脂肪、低膽固醇、 比別的植物油還理想…云云。
既然連政府都這麼說,大概是不會錯 了;於是乎關心自己和家人健康的朋友,都紛紛
買回去做菜。它在北美洲的銷路直線上升,沒多久也引進了台灣。
但是,Canola 油 到底是什麼東西做的呢?其他的油都可以從名字望文生義:... 阅读全帖
g*****g
发帖数: 34805
3
来自主题: DotNet版 - 要不要跳ASP.net and C# 坑?
You lack the fundamentals in data modeling. Most likely you never had to do
high scalability design. That's OK, most programmers didn't. Bing, like
Google search, doesn't demand ACID. If a user sees a different result from
another user for the same query, it's not much an issue. This is the
opposite of a system like Ebay, where ACID requirement is high.
MSN mail, live, requires higher ACID than Bing but it doesn't need Ebay like
transaction requirement. And when ACID is not required, it's genera... 阅读全帖
g*****g
发帖数: 34805
4
来自主题: DotNet版 - 要不要跳ASP.net and C# 坑?
You lack the fundamentals in data modeling. Most likely you never had to do
high scalability design. That's OK, most programmers didn't. Bing, like
Google search, doesn't demand ACID. If a user sees a different result from
another user for the same query, it's not much an issue. This is the
opposite of a system like Ebay, where ACID requirement is high.
MSN mail, live, requires higher ACID than Bing but it doesn't need Ebay like
transaction requirement. And when ACID is not required, it's genera... 阅读全帖
T********i
发帖数: 2416
5
来自主题: Programming版 - 简单介绍一下老魏的结构
其实这种majority voting的现成的轮子很多。
热备份其实也不定要串联。但是主节点和次级之间一定要有一个ACID MQ。这个是必须
的。
为了保证partition resilience这个ACID MQ甚至可以跨DC。
我说了热备份其实也不定要串联。也可以用基于multicast的架构。
这个设计有其特殊性,就是上行和下行的流量可能差几个数量级。每天票就那么多张,
几千万的量级。但是查询和抢票请求可能有几十上百亿。但是只有抢到的票才会影响状
态。
ACID MQ保证了抢到的票的durability。MQ两端任何一端挂掉,都能按照顺序完全恢复
。hotstandby转换成primary也是借助ACID MQ恢复状态。
问题是,机器挂掉,是百八十年不遇的。真挂了,短暂几秒钟不能提供服务,没啥大不
了的。关键是,状态确实能够完全恢复。而且前端后端也能恢复。
再次强调。这个case有其特殊性。更像股票市场。每天qoute比真正的trade多成百上千
倍。
T********i
发帖数: 2416
6
我说过几次,一个人,能把自己做的东西分析明白,就不错了。
成天把分布容错挂在嘴边的你知道你的脑子里都是屎么?
成天搞卡三爪之类的,动不动就durability,你懂flush和sync的差别么?你知道你做
的那东西的目的就是garbage in么?
你这么牛逼,咋不用卡三爪做一个网购下单或者支付数据库给我瞧瞧?
还有那些动不动就分布ACID数据库的。你咋不chaosmonkey那些数据库看看?ACID和
client不能保持一致性你造不?除非client也要有ACID的journal log。即使有journal
log谁也不想扒硬盘,还要有ACID的MQ你懂不?
你们谁做过这种critical的系统?没吃过猪肉,连猪跑都没见过。来扯淡掐架我不愿意
掺和。反反复复这单就是故意误导了。就属于人品下作无耻了。
我的几百行程序不到1000行,再加几百行无限hot standby,无限scalable你说
不会维护。你那个玩意儿上百倍成本,慢上百倍,机器多上百倍,光他妈的
deployment script就比我代码还多好多倍就好维护?
关键是,你能证明你那垃圾可靠么?任何两台机器之间,你证明... 阅读全帖
h******y
发帖数: 351
7
I asked the same question before on Histonet and other forum but never got a
satisfactory answer. :-(
I was doing in situ hybridization using TBS or PBS and came across another
protocol using Maleic acid. Then I went back and checked the data sheet
coming with the anti-DIG-AP antibody (Roche), and found that they suggested
using Maleic acid based buffer for "membrane application" and Tris-based
buffer for "other application".
Maleic acid has less buffering capacity than Tris in the pH range of 7... 阅读全帖
z*t
发帖数: 863
8
Beutler得奖,Medzhitov会不会有意见?
http://www.sciencedirect.com/science/article/pii/S1074761309002
Ruslan Medzhitov
This year marks the 20th anniversary of a publication (Janeway, 1989) that
in many ways revolutionized our understanding of the immune system. As part
of the proceedings of the Cold Spring Harbor Symposium on Immune Recognition
, the paper authored by the late Charles A. Janeway, Jr. was not a standard
peer-reviewed publication. In fact, Charlie used to refer to it as “the
best paper I've ... 阅读全帖
s******a
发帖数: 252
9
The golden age of metabolism is coming again.
The signaling roles of metabolites have been unappreciated for too long,
even prominent examples like cAMP are everywhere.
Stability and low concentration limit the study of many of them. We may know
less than half of metabolites in our body right now.
High resolution mass spectrometers and systems biology will power the next
wave of discoveries. The fist half of 20th century was the first golden age.
Pasted below are Nobel prizes related to metaboli... 阅读全帖
s******a
发帖数: 252
10
The golden age of metabolism is coming again.
The signaling roles of metabolites have been unappreciated for too long,
even prominent examples like cAMP are everywhere.
Stability and low concentration limit the study of many of them. We may know
less than half of metabolites in our body right now.
High resolution mass spectrometers and systems biology will power the next
wave of discoveries. The fist half of 20th century was the first golden age.
Pasted below are Nobel prizes related to metaboli... 阅读全帖
x********e
发帖数: 2275
11
来自主题: Biology版 - 包子,求一篇文章
请发到:h******[email protected]
先谢过了!
Curr Med Chem. 2012 Dec 1;19(35):6065-71.
Characterisation of a Neural Teratogenicity Assay Based on Human ESCs
Differentiation Following Exposure to Valproic Acid.
Colleoni S, Galli C, Gaspar JA, Meganathan K, Jagtap S, Hescheler J,
Sachinidis A, Lazzari G.
SourceAvantea, Via Porcellasco 7/f, 26100 Cremona, Italy. silviacolleoni@
avantea.it.
Abstract
The development of in vitro testing strategies for chemical and drug
screening is a priority need in order to protect... 阅读全帖
T****u
发帖数: 424
12
不是医生,只能提些建议。最好还是多咨询医生。
1. 保护孩子首先。
2. 从你描述的症状来看。应该是不能代谢长链脂肪酸, 没法beta-oxidation
LCHAD=Long-chain 3-hydroxyacyl-coenzyme A dehydrogenase deficiency
VLCAD=Very long-chain acyl-coenzyme A dehydrogenase deficiency
最后导致长链脂肪酸堆积,导致肝损伤,直至肝硬化。
3.避免长链脂肪酸。这类的疾病用Carnitine or MCT (medium chain triglycerides)
oil supplement.跳过长链脂肪酸代谢那一步(请尊医嘱)
4.我想应该是long chain FA氧化通路上的基因的mutation导致的。
Arnold W. Strauss, MD
是做这方面研究的。你可以试着跟他联系,也许他会感兴趣,可能会帮你检测这些
mutation.
http://www.cincinnatichildrens.org/research/divisions/d/dhc/... 阅读全帖
e*****n
发帖数: 139
13
来自主题: Biology版 - Nature: 一针FGF1治疗糖尿病
Oh, No.
Insulin sensitization would result in increase in RER, which shows the
elevation of carbohydrate oxidation and the concomitant reduction of fat
oxidation. Therefore, the overall energy expenditure would not be altered.
If food intake is not affected, adiposity and body weight will then be
maintained. The increased glucose taken into cells will get burned,
replacing the elevated fatty acid oxidation in diabetic state. The
biochemical mechanism underlying glucose/fatty acid fuel selection ... 阅读全帖
a******n
发帖数: 8
14
仅统计生命科学学院发表的文章,不包括其它院系发表的生命科学文章。
通讯作者单位。
时间段2009-2014.7五年内。
序号
list
1 SCIENCE, 325(5938): 332-336, 2009
2 SCIENCE, 336(6080): 477-481, 2012
3 LANCET, 376(9744):895-902, 2010
4 NATURE CELL BIOLOGY, 11(9): 1128-U184, 2009
5 NATURE CELL BIOLOGY, 13(3):263-U425,2011
6 NATURE CHEMICAL BIOLOGY. 2013 Dec 8. doi: 10.1038/nchembio.1406....
7 NATURE COMMUNICATIONS.2013 Jun 3;4:1937. doi: 10.1038/ncomms2924.....
8 NATURE IMMUNOLOGY, 12, 1143-1149, 2011
9 NATURE CHEMICAL BIOLOGY 8 (11) : 897-904,20... 阅读全帖

发帖数: 1
15
无意中看到一个老外写的,用了下面这篇文章里边介绍的使用荧光标签检控mitophagy。
Tools and techniques to measure mitophagy using fluorescence microscopy
DOI: 10.4161/auto.24001
FP-based biosensors for mitophagy
The field of FP engineering is accelerating with a plethora of new variants
described each year. These proteins show differen- tial properties, many of
which may provide useful tools to study mitophagy. For example, FP-based
biosensors such as a pH- sensitive mitochondrial-targeted FP chimera has
been recently developed to m... 阅读全帖

发帖数: 1
16
无意中看到一个老外写的,用了下面这篇文章里边介绍的使用荧光标签检控mitophagy。
Tools and techniques to measure mitophagy using fluorescence microscopy
DOI: 10.4161/auto.24001
FP-based biosensors for mitophagy
The field of FP engineering is accelerating with a plethora of new variants
described each year. These proteins show differen- tial properties, many of
which may provide useful tools to study mitophagy. For example, FP-based
biosensors such as a pH- sensitive mitochondrial-targeted FP chimera has
been recently developed to m... 阅读全帖
x*******6
发帖数: 994
17
来自主题: ChemEng版 - 请教一个碳材料的键和问题
碳材料经过酸处理后会形成carboxylic acid基。在硼酸,水和酸处理后会形成
carboxylic acid基的碳混合体系里,硼酸是先跟水键和还是跟carboxylic acid基键和
?理论上,应该取决于什么物理参数来决定以上键合可能性?是否也取决于在酸处理后
的炭材料上的acidic site多少?如果有任何推荐的文献,也请给与帮助。 本人不是化
学专业,多谢帮助。
p***7
发帖数: 535
18
来自主题: Chemistry版 - 生物学生 HPLC 再次请教
大家好。再来请教HPLC,真是没有想到已经规范化的流程又会出错。
我的目的是:定量植物中的Salicylic acid (SA)。用的 extraction internal
standard 是o-anisic acid. 流动相可以把o-anisic acid 和SA 分开。前几天一直很
好,可是最近不知什么原因,原本单一漂亮的SA的峰变成了两个:一个大的,一个很小
的。昨天换了个柱子注射同样的样品,发现SA的峰好了,但是o-anisic acid 又成了2
个,一个大的和一个很小的。为什么会这么不稳定呢?如果是柱子的原因,那如何改良
柱子呢?我中间没有做什么来改变柱子啊!真是奇怪。谢谢大家了。
d********O
发帖数: 1196
19
来自主题: Chemistry版 - Paper help, Thanks {Inorg. Chem}
Title: Nitrilotri(methylenephosphonic acid), ethyliminodi-(
methylenephosphonic acid), and diethylaminomethylphosphonic acid: acidity
and calcium(II) and magnesium(II) complexing
1967, 6 (5), pp 939–942
DOI: 10.1021/ic50051a018
Please send to D********[email protected] , if this is more convenient for you.
Thanks again!
c******m
发帖数: 884
20
来自主题: Chemistry版 - pKa 问题,请教各位大牛
Thank you for the reply. Do you mean triethylamine for TEA? If so, I didnot
use any TEA in the previous wash.
The ion exchange (IX) solid phase (SP) contains a linker-piperazine with pKa
of 6, so I load the orotic acid (ORA, pKa1=2.8) with a pH 4.4 (half of 2.8+
6) solution to make sure both SP and ORA are ionized. Then I use 2%Formic
Acid/water (pH=2) to wash (should not elute any ORA out), and then use NH4OH
in MeOH/ACN to elute ORA. But the result shows the acidic wash step elute a
lot ORA. S... 阅读全帖
p*i
发帖数: 1481
21
来自主题: Chemistry版 - 16个包子求wiley的四本books
Amino Acids, Peptides and Proteins in Organic Chemistry: Modified Amino
Acids, Organocatalysis and Enzyme, Volume 2
http://onlinelibrary.wiley.com/book/10.1002/9783527631780
Amino Acids, Peptides and Proteins in Organic Chemistry: Building Blocks,
Catalysis and Coupling Chemistry, Volume 3
http://onlinelibrary.wiley.com/book/10.1002/9783527631803
Amino Acids, Peptides and Proteins in Organic Chemistry: Protection
Reactions, Medicinal Chemistry, Combinatorial Synthesis, Volume 4
http://onlinelibr... 阅读全帖
d********y
发帖数: 176
22
来自主题: Chemistry版 - FT-IR spectrum analysis help; You baozi
typically C-H stretch occurs there.
however, in cystine, there is only 1 C-H and there is no way for that one C-
H bond to contribute to that signal. plus that 3003 cm-1 feature is very
broad. I believe there are actually multiple peaks there from the O-H
stretch of the acid. although normally you expect O-H stretch to be higher,
for carboxylic acid its position is highly sensitive to the association
state of the acid (i.e. H-bonding) and often carboxylic acid has very broad
features between 340... 阅读全帖
x*******6
发帖数: 994
23
来自主题: Chemistry版 - 请教一个碳材料的键和问题
碳材料经过酸处理后会形成carboxylic acid基。在硼酸,水和酸处理后会形成
carboxylic acid基的碳混合体系里,硼酸是先跟水键和还是跟carboxylic acid基键和
?理论上,应该取决于什么物理参数来决定以上键合可能性?是否也取决于在酸处理后
的炭材料上的acidic site多少?如果有任何推荐的文献,也请给与帮助。 本人不是化
学专业,多谢帮助。
e**d
发帖数: 42
24
来自主题: Chemistry版 - patend help please
哪位大侠能帮忙找到这篇中国专利?先拜谢了。
Patent Information
Sep 16, 2015
CN 104910001
A
Faming Zhuanli Shenqing
7pp.
Patent
2015
CODEN:CNXXEV
Method for synthesizing 5-chloro-1-indanone
By: Xu, Wei; Wang, Yi; Zhan, Changjuan; Wang, Hua; Yang, Xiao
Assignee: Peop. Rep. China
Abstract:
The invention discloses a method for synthesizing 5-chloro-1-indanone, and
belongs to the field of org. synthesis. The method comprises the steps of:
carrying out a reaction between 3-chlorobenzaldehyde as raw material and
malonic a... 阅读全帖
ik
发帖数: 167
25
来自主题: Chemistry版 - 审稿机会
This is the abstract:
The authors describe a highly sensitive colorimetric method for the
determination of ascorbic acid. It is based on the finding that nanosheets
of reduced graphene oxide that were functionalized with poly(sodium styrene
sulfonate) (PSS-rGO) possess peroxidase-like activity that catalyzes the
oxidization of the substrate 3,3',5,5'-tetramethylbenzidine (TMB) by H2O2 to
form a blue product that can be quantified by photometry or visually. If
ascorbic acid is present, a fraction... 阅读全帖

发帖数: 1
26
您好,不知道这个职位是否找到合适的人选,我的背景还是比较符合的,PhD期间做了
大量活性炭的工作,之间还在膜分离公司工作过四年有丰富的工程经验,请看我的简历
,如果您觉得还可以的话请与我联系,非常感谢!
Yuhe Cao
North Campus Drive 1400,
Agricultural and Biosystems Engineering,
South Dakota State University,
Brookings, SD 57007
(605) 592-0789
[email protected]/* */
Objective
Challenging research position in membrane science in a pharmaceutical, gas
adsorption, gas purification and separation, water treatment or biotech
company or university
Qualifications
• How fiber membrane fabr... 阅读全帖

发帖数: 1
27
来自主题: Chemistry版 - 招会用LCMs/ms的scientist
您好,不知道这个职位是否找到合适的人选,我的背景还是比较符合的,PhD期间做了
活性物分离提取的工作,之间还在膜分离公司工作过四年有丰富的工程经验,请看我的
简历,如果您觉得还可以的话请与我联系,非常感谢!
Yuhe Cao
North Campus Drive 1400,
Agricultural and Biosystems Engineering,
South Dakota State University,
Brookings, SD 57007
(605) 592-0789
[email protected]/* */
Objective
Challenging research position in membrane science in a pharmaceutical, gas
adsorption, gas purification and separation, water treatment or biotech
company or university
Qualifications
• How fiber membrane fa... 阅读全帖

发帖数: 1
28
来自主题: Chemistry版 - 招会用LCMs/ms的scientist
您好,不知道这个职位是否找到合适的人选,我的背景还是比较符合的,PhD期间做了
活性物分离提取的工作,之间还在膜分离公司工作过四年有丰富的工程经验,请看我的
简历,如果您觉得还可以的话请与我联系,非常感谢!
Yuhe Cao
North Campus Drive 1400,
Agricultural and Biosystems Engineering,
South Dakota State University,
Brookings, SD 57007
(605) 592-0789
[email protected]/* */
Objective
Challenging research position in membrane science in a pharmaceutical, gas
adsorption, gas purification and separation, water treatment or biotech
company or university
Qualifications
• How fiber membrane fa... 阅读全帖
d********y
发帖数: 176
29
http://onlinelibrary.wiley.com/doi/10.1002/masy.19910420119/pdf
Article
Inhibiting or cocatalytic effect of water and other additives on cationic
polymerization of cyclodimethylsiloxanes
Authors
P. Sigwalt,
C. Gobin,
P. Nicol,
M. Moreau,
M. Masure
First published: March 1991Full publication history
DOI: 10.1002/masy.19910420119View/save citation
Cited by: 14 articlesCitation tools
Funding Information
Abstract
Cyclodimethylsiloxanes such as hexamethylcyclotrisiloxane (D3) and
octamethyl-cyclotetr... 阅读全帖
g****g
发帖数: 1828
30
来自主题: ChineseMed版 - 板蓝根
板蓝根(常用别名:靛青根、蓝靛根、大青根)是一种中药材。中国各地均产。板蓝根
分为北板蓝根和南板蓝根,北板蓝根来源为十字花科植物菘蓝(Isatis tinctoria L.
)和草大青(I. indigotica Fort.)的根;南板蓝根为爵床科植物马蓝(
Baphicacanthus cusia (Nees) Brem.)的根茎及根。具有清热解毒、凉血消肿、利咽
之功效。可到大有恒中药材库查询购买。
目录
基本特征
1. 物种名称
2. 药材基源
3. 药物应用鉴别
4. 中药化学成分
5. 药理作用
药理学
1. 药代动力学
2. 药(毒)理学
医学药理作用
药用特征
1. 药性论述
2. 药方选录
3. 临床应用
4. 用药注意事项
现代研究
1. 主要成分:
2. 药理作用:
其他资料
1. 药用植物栽培
2. 板蓝根的食... 阅读全帖
x*******6
发帖数: 994
31
来自主题: Engineering版 - 请教一个碳材料的键和问题
碳材料经过酸处理后会形成carboxylic acid基。在硼酸,水和酸处理后会形成
carboxylic acid基的碳混合体系里,硼酸是先跟水键和还是跟carboxylic acid基键和
?理论上,应该取决于什么物理参数来决定以上键合可能性?是否也取决于在酸处理后
的炭材料上的acidic site多少?如果有任何推荐的文献,也请给与帮助。 本人不是化
学专业,多谢帮助。
x*******6
发帖数: 994
32
来自主题: Macromolecules版 - 请教一个碳材料的键和问题
碳材料经过酸处理后会形成carboxylic acid基。在硼酸,水和酸处理后会形成
carboxylic acid基的碳混合体系里,硼酸是先跟水键和还是跟carboxylic acid基键和
?理论上,应该取决于什么物理参数来决定以上键合可能性?是否也取决于在酸处理后
的炭材料上的acidic site多少?如果有任何推荐的文献,也请给与帮助。 本人不是化
学专业,多谢帮助。
i**********d
发帖数: 853
33
首先声明:我的分数很普通,所以这个帖子也没有任何炫耀的意思,只是我在考前
,每天都来看看有没有考经,也经常拿自己的模考成绩和考经中的对照一下,看看自己
复习的效果,从前辈的考经中学到很多。所以,本贴得唯一目的是:希望能给还在准备
step1的朋友们一点提示,吸取我的教训,都考出一个好成绩。
正文:
我是8/06/2012考的Step1,昨天(8/29/2012)早上9:19am拿到成绩---242/85,还
好,和自己估计的成绩240 +/- 5基本一致。万分感谢我的家人的理解和支持,十分感
谢曾经一起学习的战友们和校友们的鼓励和帮助,感谢麦地版的前辈们的考经和经验介
绍。曾经许诺一旦成绩上了230,就写一篇考经,下面就把我的备考经历和一点心得体
会向麦地版的战友们作一汇报,也算是对自己这段人生的一个总结:
一、题库、模考及考试成绩+时间:
UW qBank: 正确率最早25%,考前80-90%
Kaplan qBank: 只做了解剖、遗传,没有统计正确率
Dec 18, 2011, Form3 --- 350
Feb 25, 2012, F... 阅读全帖
i**********d
发帖数: 853
34
Jeff的75条口诀:
1).
Chloramphenicol inhibits 50S peptidyltransferase.
喷着氯气的ram(羊)拦住(抑制) 50岁的亚裔太太搬家(转移)(50S亚基肽键转移酶)
Clindamycin & chloramphenicol block peptide bond formation.
克林顿用氯气 吓唬老婆 --> 防止太太贱(肽键)形成
Aminoglycosides bind 30S and inhibit formation of the initiation complex and
cause misreading of mRNA.
Amigo绑架了30S亚裔,抑制了她婚姻的起始,造成她男友的误读
Macrolides block translocation.
带着大沿帽子的人(城管?)挡道--> 不让别人换地方translocation
2).
下肢淋巴回流:
小隐隐于城外蝈蝈窝棚,大隐隐于城内富人水沟
(小隐收集小腿外侧淋巴液,注入腘窝;
大隐收集下肢内侧淋巴液,注入腹股沟;)
3)
imprinting diseas... 阅读全帖
i**********d
发帖数: 853
35
首先声明:我的分数很普通,所以这个帖子也没有任何炫耀的意思,只是我在考前
,每天都来看看有没有考经,也经常拿自己的模考成绩和考经中的对照一下,看看自己
复习的效果,从前辈的考经中学到很多。所以,本贴得唯一目的是:希望能给还在准备
step1的朋友们一点提示,吸取我的教训,都考出一个好成绩。
正文:
我是8/06/2012考的Step1,昨天(8/29/2012)早上9:19am拿到成绩---242/85,还
好,和自己估计的成绩240 +/- 5基本一致。万分感谢我的家人的理解和支持,十分感
谢曾经一起学习的战友们和校友们的鼓励和帮助,感谢麦地版的前辈们的考经和经验介
绍。曾经许诺一旦成绩上了230,就写一篇考经,下面就把我的备考经历和一点心得体
会向麦地版的战友们作一汇报,也算是对自己这段人生的一个总结:
一、题库、模考及考试成绩+时间:
UW qBank: 正确率最早25%,考前80-90%
Kaplan qBank: 只做了解剖、遗传,没有统计正确率
Dec 18, 2011, Form3 --- 350
Feb 25, 2012, F... 阅读全帖
i**********d
发帖数: 853
36
Jeff的75条口诀:
1).
Chloramphenicol inhibits 50S peptidyltransferase.
喷着氯气的ram(羊)拦住(抑制) 50岁的亚裔太太搬家(转移)(50S亚基肽键转移酶)
Clindamycin & chloramphenicol block peptide bond formation.
克林顿用氯气 吓唬老婆 --> 防止太太贱(肽键)形成
Aminoglycosides bind 30S and inhibit formation of the initiation complex and
cause misreading of mRNA.
Amigo绑架了30S亚裔,抑制了她婚姻的起始,造成她男友的误读
Macrolides block translocation.
带着大沿帽子的人(城管?)挡道--> 不让别人换地方translocation
2).
下肢淋巴回流:
小隐隐于城外蝈蝈窝棚,大隐隐于城内富人水沟
(小隐收集小腿外侧淋巴液,注入腘窝;
大隐收集下肢内侧淋巴液,注入腹股沟;)
3)
imprinting diseas... 阅读全帖
i**********d
发帖数: 853
37
来自主题: MedicalCareer版 - Steps口诀总结帖-2014
75条口诀:
1).
Chloramphenicol inhibits 50S peptidyltransferase.
喷着氯气的ram(羊)拦住(抑制) 50岁的亚裔太太搬家(转移)(50S亚基肽键转移酶)
Clindamycin & chloramphenicol block peptide bond formation.
克林顿用氯气 吓唬老婆 --> 防止太太贱(肽键)形成
Aminoglycosides bind 30S and inhibit formation of the initiation complex and
cause misreading of mRNA.
Amigo绑架了30S亚裔,抑制了她婚姻的起始,造成她男友的误读
Macrolides block translocation.
带着大沿帽子的人(城管?)挡道--> 不让别人换地方translocation
2).
下肢淋巴回流:
小隐隐于城外蝈蝈窝棚,大隐隐于城内富人水沟
(小隐收集小腿外侧淋巴液,注入腘窝;
大隐收集下肢内侧淋巴液,注入腹股沟;)
3)
imprinting disease: ch... 阅读全帖
i**********d
发帖数: 853
38
来自主题: MedicalCareer版 - Steps口诀总结帖-2014
75条口诀:
1).
Chloramphenicol inhibits 50S peptidyltransferase.
喷着氯气的ram(羊)拦住(抑制) 50岁的亚裔太太搬家(转移)(50S亚基肽键转移酶)
Clindamycin & chloramphenicol block peptide bond formation.
克林顿用氯气 吓唬老婆 --> 防止太太贱(肽键)形成
Aminoglycosides bind 30S and inhibit formation of the initiation complex and
cause misreading of mRNA.
Amigo绑架了30S亚裔,抑制了她婚姻的起始,造成她男友的误读
Macrolides block translocation.
带着大沿帽子的人(城管?)挡道--> 不让别人换地方translocation
2).
下肢淋巴回流:
小隐隐于城外蝈蝈窝棚,大隐隐于城内富人水沟
(小隐收集小腿外侧淋巴液,注入腘窝;
大隐收集下肢内侧淋巴液,注入腹股沟;)
3)
imprinting disease: ch... 阅读全帖
x*******6
发帖数: 994
39
来自主题: NanoST版 - 请教一个碳材料的键和问题
碳材料经过酸处理后会形成carboxylic acid基。在硼酸,水和酸处理后会形成
carboxylic acid基的碳混合体系里,硼酸是先跟水键和还是跟carboxylic acid基键和
?理论上,应该取决于什么物理参数来决定以上键合可能性?是否也取决于在酸处理后
的炭材料上的acidic site多少?如果有任何推荐的文献,也请给与帮助。 本人不是化
学专业,多谢帮助。
j******o
发帖数: 383
40
昨天ER护士给report时说到 Banana bag, 我完全不知道是什么东东就马上问她,发现
在工作中很多时候有些简称什么的让人摸不着头脑,在这希望和大家交流一下,要如何
学习这些"slang" ,在哪里能找到医院里常有的简称呢?
A banana bag is an intravenous nutritional supplement that commonly is
prescribed to hospital patients who have nutritional deficiencies or
chemical imbalances. It contains a liter of saline solution that includes a
10 milliliter ampoule of multivitamin injection (MVI); one milligram of
folic acid, which is vitamin B9; 100 milligrams of thiamine, which is
vitamin B1; and sometime... 阅读全帖
d**********0
发帖数: 13081
41
这里讲到一些在珠江流域的研究。
http://www.sciencedirect.com/science/article/pii/S0026265X12002
Abstract
Organoarsenic compounds, such as roxarsone (3-nitro-4-hydroxyphenylarsonic
acid, ROX) and p-arsanilic acid (ASA), are widely used as animal feed
additives, while animal wastes bearing these compounds are often used to
fertilize agricultural land, which can cause arsenic pollution of soil,
surface water, and groundwater. Determination of a number of inorganic and
organic arsenic species in a variety of enviro... 阅读全帖
p********r
发帖数: 3799
42
http://www.beginnertriathlete.com/cms/article-detail.asp?articl
Confused about how much protein you need, when you need it, and the best
kinds of protein? The following article answers some of the questions active
people commonly ask about protein.
Protein is a popular topic among both casual exercisers and competitive
athletes, many of whom are confused about how much protein they need, when
they should eat it, and the best kinds of protein to choose. The following
article answers some of the q... 阅读全帖
y*****l
发帖数: 5997
43
来自主题: _pennystock版 - 想喊sppi,可惜mittbbs坏了
sppi 最近要炒FDA吗?
Spectrum Pharmaceuticals Responds to FDA's Complete Response Letter for
Fusilev
Sunday 11/07/2010 1:04 AM ET - Close-up Media
Spectrum Pharmaceuticals, a biotechnology company with fully integrated
commercial and drug development operations with a primary focus in oncology,
announced that on Friday, October 29, it submitted a complete response to
the "Complete Response" letter issued by the U.S. Food and Drug
Administration (FDA), regarding its supplemental New Drug Application (s... 阅读全帖
s*******l
发帖数: 4870
44
来自主题: _PerfectMoms版 - canola oil
my sister told me not to use it anymore
REALLY? for REAL?
大家千萬别吃 Canola 油
大約是十幾年前,市面上突然出現了一種新的烹飪油,英文叫做Canola Oil。起先只有
在專賣”健康自然產品”的店裡才能看到,但是因為政府及私人公司都廣為宣傳這種油
的好處:純植物提煉、不飽和性脂肪、低膽固醇、比別的植物油還理想…云云。既然連
政府都這麼說,大概是不會錯了;於是乎關心自己和家人健康的朋友,都紛紛買回去做
菜。它在北美洲的銷路直線上升,沒多久也引進了台灣。
但是,Canola油到底是什麼東西做的呢?其他的油都可以從名字望文生義:如橄欖油,
當然是橄欖的油;花生油是花生仁的油;椰子油是椰子果實的油…等等。筆者心生疑惑
,查了極詳備的東華大辭典,竟然沒有這個字。
去年某日,筆者重聽雷博士在四、五年前演講的錄音帶,赫然得到了答案。正巧又有一
位琉璃光的朋友轉來一篇網上有關此油的文章,恰印證了雷博士所言。筆者知道有不少
朋友還在用這種油,當即轉發此文給一些能看英文的朋友。數天之後,有一位本地朋友
很急切的告訴我說:”好可怕啊!我們家這... 阅读全帖
y***d
发帖数: 2330
45
关于氢化油和 GM 的,
http://en.wikipedia.org/wiki/Soybean_oil
Soybean oil has a relatively high proportion, 7–10%, of oxidation-prone
linolenic acid, which is an undesirable property for continuous service,
such as in a restaurant. In the early nineties, Iowa State University
developed soybean oil with 1% linolenic acid in the oil. Three companies,
Monsanto Company, DuPont/Bunge, and Asoyia in 2004 introduced low linolenic,
(C18:3; cis-9, cis-12, cis-15 octadecatrienoic acid) Roundup Ready soybeans
. In
g**********n
发帖数: 12
46
你的理解不对。
linolenic fatty acid is a healthy contributor for your hearts because it is
unsaturated,but it is not stable in a high temperature such as frying.
linolenic fatty acid 在高温下(油炸)会容易降解,和转化为trans-fatty acid,so
linolenic is not good for a frying oil in restaurants and food industries.
high linolenic soy oil was reduced to a low concentration by hydrogenation
to improve the quality for frying purpose. but this processing produced
saturated trans-fat. GM soybean frying oil contains low lin and
C********g
发帖数: 9656
47
转基因玉米的神话
http://www.rainbowplan.org/bbs/topic.php?topic=107689
送交者: 六指 于 2010-03-25 12:25:45
转基因现在是网上的热门话题,这其中自然少不了在转基因食品上市前就已试吃过的方
老师的身影。学习完他的科普熊文“转基因玉米更有益健康”后,再做延伸阅读,稍加
搜索就看到一篇2004年的洋文”Bt corn reduces serious birth defects”【http://westernfarmpress.com/news/10-27-04-Bt-corn-birth-defects/ 】。方老师的文章基本观点,数据,内容编排都和这篇雷同,不少句子更是原文照译。这进一步验证了一条世人皆知的谣言“方老师写的东西,也有成段的引文献或者直接是英语文章翻过来的”。方老师打开门辟谣,关上门立马就造谣,此等大无畏的勇气和人格力量实在是让我等折服。
方老师涉嫌抄袭早已不是什么新鲜话题,这里说说转基因。这篇洋文的两位作者实际上
是做”二阶科学传播“,主要介绍了当年在“营养学杂志”发表的一篇综述【http://jn... 阅读全帖
c**i
发帖数: 6973
48
来自主题: History版 - China As Origins of Historical Plagues
Nicholas Wade, Black Death's Origins Traced to China; Three great waves of
disease share a family tree of bacterium. New York Times, Nov. 1, 2010.
http://www.nytimes.com/2010/11/01/health/01plague.html?scp=1&sq=black%20death&st=cse
My comment:
(1) Yersinia pestis
http://en.wikipedia.org/wiki/Yersinia_pestis
(However, [compared with Kitasato, see below] it was Yersin who actually
linked plague with Yersinia pestis. Originally named Pasteurella pestis, the
organism was renamed in 1967)
(a) Alexand... 阅读全帖
d******a
发帖数: 32122
49
☆─────────────────────────────────────☆
guike (龟壳) 于 (Sat Feb 18 12:49:08 2012, 美东) 提到:
活熊取胆迷思。
最近因为归真堂要IPO,之前沉寂了很久的归真堂活熊取胆的老底又被人翻了出来。动
物保护组织,爱护动物的人士,各种评论专家纷纷跳出来居高临下地抨击活熊取胆,从
各个方面证明活熊取胆不“熊”道。那么,事实真的如人们所说的一样吗?
第一、 这些抨击活熊取胆的人士一个最重要的论点是熊胆的主要成分是牛磺熊去氧
胆酸,而现在合成的纯品熊去氧胆酸很便宜,因此活熊取胆没有意义且很不人道。这个
观点看似正确,其实大谬。为什么这么说呢?我们从牛磺熊去氧胆酸的结构说起。牛磺
熊去氧胆酸是熊胆汁中一种特有的有效成分,有非常重要的药用作用,不仅能溶解胆结
石,有研究表明还能治疗帕金森氏症以及亨廷顿舞蹈症,以及保护中枢神经的作用。根
据熊种的不同,熊胆干粉含有47%-76%的牛磺熊去氧胆酸,少量的鹅去氧胆酸以及微量
的胆色素。下图左侧就是牛磺熊去氧胆酸( tauroursodeoxycholic acid T... 阅读全帖
y**********g
发帖数: 2285
50
来自主题: Military版 - 板蓝根到底有用没
菘蓝根含靛蓝(indigotin,indigo),靛玉红(indirubin),蒽醌类、β-谷甾醇(
β-sitosterol),γ-谷甾醇(γ-sitosterol)以及多种氨基酸:精氨酸(arginine
),谷氨酸(glutamic acid),酪氨酸(tyrosine),脯氨酸(proline),缬氨酸(
valine),γ-氨基丁酸(γ-aminobu-tyric acid)。还含黑芥子甙(sinigrin),靛
甙(indoxyl-β-
hlucoside),色胺酮(trptanthrin),1-硫氰酸-2-羟基丁-3-烯(l-thiocyano-2-
hydroxy-3-butene),表告伊春(epigoitrin),腺甙(adenosine),棕榈酸(
palmitic acid),蔗糖(sucrose)和含有12%氨基酸的蛋白多糖。
还含有抗革兰氏阳性和阴性细菌的抑菌物质及动力精。
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