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y*******i
发帖数: 110 | 2 我的车是2005 年VW Passat 90k 要换timing belt 和一些service 总共1000 dollars
Sh是买新车好呢还是继续用旧车 一般 vw 的 lifespan 是多少 |
|
gr
发帖数: 2958 | 3 lifespan 平常就买999
pro 2000经常打折到999 |
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j******l
发帖数: 459 | 4 看了一下文章没理解根据活人是如何推算出来shorten lifespan的，难道是有人挂了么
，还
是有个什么方法衡量这个人还能活多久的…… |
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s********l
发帖数: 439 | 5 这个shorter lifespan是怎么算出来的？难道等到这些人全部死掉？呵呵
当然了，每个人都有个身体能够承受的上限，跑的太多肯定对健康是有影响的。以前看
过文章，说给“百马俱乐部”的runner们做心脏MRI，发现一半左右的人心脏里面有
scar tissue。具体多少算“太多”我觉得还是因人而异，不能简单地说每周不要超过
三小时或者每周不要超过六小时，这几天新闻上跑半马跑死的恐怕每周还跑不到3个小
时呢。 |
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w*******y
发帖数: 60932 | 6 LifeSpan Fitness S2 Indoor Cycling Bike @ Amazon is $555.98, but there is an
instant $200 rebate making it $355.98 and ships with prime. It says it may
take 1-2 days of extra processing, but mine already shipped.
This spin bike has good reviews on Amazon.
Indoor training bike mimics the natural feel of cycling outdoors
Heavy-gauge steel frame, 40-pound balanced flywheel, and Poly-V drive belt
Fully adjustable seat and handlebars make it easy to ride in proper position
Seat and pedals are int |
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w*********s
发帖数: 2136 | 7 Vaccine vs. Autism, 2009:
United States:
Vaccinations before age 5: 36
Death per 1000 under 5 yrs old: 7.8
Autism rate: 1/91
Lifespan ranking: 34
Norway:
Vaccinations before age 5: 13
Death per 1000 under 5 yrs old: 4.4
Autism rate: 1/2000
Lifespan ranking: 5
Denmark:
Vaccinations before age 5: 12
Death per 1000 under 5 yrs old: 5.8
Autism rat... 阅读全帖 |
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z***9
发帖数: 1052 | 8 I just started thinking to buy furniture for my house, and did some research
. I came across this great site www.myfurnitureforum.com with a lot of
information and knowledge in the furniture industry.
Here is an article on leather furniture, I think it's great.
A primer in selecting leather
It just occurred to me I may not have ever made a post about some leather
tips you need to know when you buy leather. Here's a few, and they apply to
every maker for the most part:
Leather Grade: This is a P... 阅读全帖 |
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n*********b
发帖数: 140 | 9 The notion of CR extends life span is ill-defined and misleading.
The first report on the effect of resveratrol in mice took the advantage.
In the experiment, the control cohort fed high fat diet and display a
shorten lifespan. The experiment group show normal lifespan, which was
interpreted as the effect of resveratrol on extending lifespan. But the
very fact is that the lifespan of the experimental group was not improved.
CR is simply cutting the chemical exposure in the form of food to th... 阅读全帖 |
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h*****6
发帖数: 28 | 10 【 以下文字转载自 PDA 讨论区 】
发信人: hdy0616 (好多鱼), 信区: PDA
标 题: Comcast 自己在staples买的modem有life span？
发信站: BBS 未名空间站 (Thu Mar 3 23:06:09 2016, 美东)
今晚回家突然不能上网，打电话给comcast. 经过一番周折，阿三说是我的modem end
of lifespan了。我说我买的modem不都是你网站上贴的certify了的型号么，咋突然就
挂了呢。他说的是我的device out of lifespan了.我还可以去买个这个型号一模一样
的，能work。但这个device已经out了。
这说法靠谱嘛？怎么知道买的（新的）设备还剩多少lifespan呢？从出场算还是从
register算？设备lifespan一般是多久？
当初嫌每月租有点贵，所以自己买个想一劳永逸。看样子这cable公司也不是省油的...
...我问他所有cable公司都这样么？他说是...
btw 现用的是moto sb6121。多谢了。 |
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y***i
发帖数: 11639 | 11
OK，你说的对，我负面的理解了你的意思。回头看看原文，你算是努力做的比较公平。
我这些话收回。
但你得明白，经历了长时间痛苦的人，你不能期望他们迅速回归原态。就象你可以在大
街上看别人邋遢不满，但别人是矿井底下呆了10天被挖出来，你指责别人怎么站没站相
东倒西歪张嘴不干不净，这是你的问题。
本来lifespan的反应，从他经历的事件不难理解。你的评价却只针对他---对他骂别人标
子不瞒，认为他戾气太重不能平平淡淡。
明明问题的起因是另一方是恶人，你所有的指责都是lifespan没当圣人，别人反驳你，
你的建议是lifespan不要总去回忆痛苦云云，总之你下的所有药都给是lifespan吃
的----在我们看到的双方的责任而言，你的做法显然是不公平，虽然你自称反感以恶
制恶，但这不是你无视起因之恶，只指责反应之恶的理由。
他气
苦，
虽然 |
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n*********b
发帖数: 140 | 12 Very nice discussion.
Regarding the method of CR, there are standards. There is also one or
several methods of dietary restriction.
Single diet may not be an accurate term here, but it was meant to express
the same composition of CR for cohort analysis. In almost all experiments,
researchers start CR at a very young age and maintain the same diet for the
lifespan. But there are only a few studies comparing the lifespan of lab
animals and their counterpart in wild. It is almost certain that t... 阅读全帖 |
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s****s
发帖数: 42 | 13 List the serial number of the car which has the shortest life span.
My code like this:
select serialno, min(lifespan)
from
(select d.serialno as serialno,
(d.ddate - c.pyear) as lifespan
from destruction d, car c
where d.serialno = c.serialno)
result
group by serialno;
It displayed the following table, but the query required to only display the
third row. How to make it?
SERIALNO MIN(LIFESPAN) |
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D*a
发帖数: 6830 | 14 c elegans 出结果快，做lifespan三周一条曲线，敲基因RNAi一喂就行了，所以一般c
elegans的paper都是十条二十好几条lifespan
做老鼠的lifespan一般就是一个KO，交配等model半年多很正常，然后公的一个图母的
一个图，完了。
不过我是做老鼠的
我也很讨厌果蝇飞来飞去，这辈子估计不会碰。。。 |
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n*********b
发帖数: 140 | 15 CR extends the chronological lifespan, as compared to the lifespan of mice
feed single diet. There is few organism on the earth who lives on diet of
fixed composition. This fact itself raises the issue of potential undefined
toxicity to the animal.
That people do not discuss this does mean there is no problem. When she has
an answer, she will tell you there is a long debating question/controversy
with this "established" conclusion in the field...
Practicing CR negatively affects the quality ... 阅读全帖 |
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D*a
发帖数: 6830 | 16 酵母有两种寿命，replicative lifespan 和 chronological lifespan，不能分裂了表
示replicative lifespan 终止，但是酵母在不能分裂了之后还能活一段时间，有点类
似人的衰老和生殖。
对单个cell来说端粒很重要，但是很多生物，老年体的细胞提取出来还能分裂十几次还
是几十次，说明细胞分裂能力并不是最终诱因，包括干细胞的保持，不光跟本身分裂能
力有关，跟其所处的niche也有很大关系。
包括c elegans里面如果过表达telomere-binding protein HRP-1可以延长端粒和寿命
，但是因为线虫体细胞不再分裂，所以端粒酶很可能确实是对衰老有影响，但是应该是
通过其他途径（比如oxidative stress神马的，paper没有细看）而不是通过维持细胞
的正常分裂能力来影响衰老。如果承认衰老是进化上普遍存在的现象，c elegans这个
例子就很有说服力。
老鼠里面有两篇关于telomerase改善老鼠衰老的症状等等的文章一篇在cancer
resistant的模型里面（否则telomerase让老鼠得各种癌症早... 阅读全帖 |
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D*a
发帖数: 6830 | 17 自己恬不知耻重新粘贴复制一遍吧，哈哈
酵母有两种寿命，replicative lifespan 和 chronological lifespan，不能分裂了表
示replicative lifespan 终止，但是酵母在不能分裂了之后还能活一段时间，有点类
似人的衰老和生殖。
对单个细胞来说端粒很重要，但是很多生物，老年体的细胞提取出来还能分裂十几次还
是几十次，说明细胞分裂能力并不是最终诱因，包括干细胞的保持，不光跟本身分裂能
力有关，跟其所处的niche也有很大关系。
包括c elegans里面如果过表达telomere-binding protein HRP-1可以延长端粒和寿命
，但是因为线虫体细胞不再分裂，所以端粒酶很可能确实是对衰老有影响，但是应该是
通过其他途径（比如oxidative stress神马的，paper没有细看）而不是通过维持细胞
的正常分裂能力来影响衰老。如果承认衰老是进化上普遍存在的现象，c elegans这个
例子就很有说服力。
老鼠里面有两篇关于telomerase改善老鼠衰老的症状等等的文章一篇在cancer
resistant的模型里面（否则te... 阅读全帖 |
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z****a
发帖数: 150 | 18 SUNY at Stony Brook Program
Stony Brook, New York 141-35-21-014 5/yr, H1B?? The institution does not
sponsor H visas and we cannot accept applicants with 'pending permanent
residency' status.
SUNY Upstate Medical University Program
Syracuse, New York 141-35-21-128 xx 2/yr, H1B . We are unable to accept H-1
visas.
Person to contact for more information about the program: Lisa Schirtz
New York Medical College at Westchester Medical Center Program
Valhalla, New York 141-35-11-015 no website, H1... 阅读全帖 |
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h***y
发帖数: 834 | 19 ☆─────────────────────────────────────☆
zhzhaa (麦地) 于 (Fri Jun 24 16:27:52 2011, 美东) 提到:
没有绿卡，怎么办？用H1。网站信息不全？自己努力！
每一个我都打电话或者 email确定过，
如果写的含糊，说明这个pregram电话没有接通，email也不回。
信可以写的很简单：
Dear Dr. Scorpion,
I am interested in the general cardiology fellowship in your institution
starting 2012. Could you please let me know if your institution sponsors H1B
visa?
记得 检查拼写正确就是了。
这个没有包括阿拉私家。
心脏科依然挣钱多，但是lifestyle不好。任何一个call 都是要命的。
但是，生活方式都是自己选的。祝愿 各位心想事成。
----
刚刚发现 没办法添加word附件，只好 后面慢慢贴上来：
☆─────────────... 阅读全帖 |
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m***f
发帖数: 1622 | 20 http://www.pnas.org/content/early/2011/03/22/1019140108.
abstract?sid=99d16095-73c3-4bfd-8878-6f8a2ae325db
Maternal investment, life histories, and the costs of brain growth in
mammals
Robert A. Barton1 and Isabella Capellini2
+ Author Affiliations
Evolutionary Anthropology Research Group, Department of Anthropology,
Durham University, Durham DH1 3LE, United Kingdom
Edited by Charles F. Stevens, Salk Institute for Biological Studies,
La Jolla, CA, and approved February 28, 2011 (received for rev... 阅读全帖 |
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s**d
发帖数: 190 | 21 转一篇文章。
Ten Things Everyone Should Know About Time
by Sean
“Time” is the most used noun in the English language, yet it remains a
mystery. We’ve just completed an amazingly intense and rewarding
multidisciplinary conference on the nature of time, and my brain is swimming
with ideas and new questions. Rather than trying a summary (the talks will
be online soon), here’s my stab at a top ten list partly inspired by our
discussions: the things everyone should know about time. [Update: all of
these ar... 阅读全帖 |
|
b****r
发帖数: 2555 | 22 ☆─────────────────────────────────────☆
voidness (先有没有) 于 (Thu Sep 1 20:10:49 2011, 美东) 提到:
这个问题有点闹心。
什么叫一秒？是一小时的1/3600，一天24小时，一年365天。
可见时间是由地球绕日头决定的。
那我要问：外星球呢？年和天一定不同于地球，因此会有不同
的时间概念。
这也解释了为什么天上一天地上一年的神话，根本就不是同一
时间系统，不一定是什么相对论的问题。
还有，在蚂蚁看来，人的一秒像它们的一分钟，你认为蚂蚁活得短，
那乌龟还认为人活得太短了呢。动作越慢的动物，相对时间活得更长。
时间不是绝对的，是你的感觉而已。
再往深了说，时间是不存在的，是因为你感知了周围变化才有时间
的概念，一旦什么都不变了，时间就停止了，呵呵，但愿你能理解。
总之，干什么事慢点，长寿，但别停干事，至少要喘气，好让时间走。
☆─────────────────────────────────────☆
Wanerbei (玩儿呗) 于 (Thu Sep 1 20:13:11 2011, ... 阅读全帖 |
|
a**********2
发帖数: 3726 | 23 if your only aim is to blame doctors, you can always make associations. it
is not doctors' fault that the lifespan of american people is shorter than
that of french people on average. As a doctor, they treat diseases and
advocate healthy lifestyles, but ultimately it's the people who choose
whether they want to live a healthy lifestyle. However, if you talk with
healthy professionals, you will know many patients will continue their
lifestyle, smoking, drinking, using drugs, regardless of how the... 阅读全帖 |
|
d**z
发帖数: 3577 | 24 Silicon Valley hedge fund Joon Yun last year offered the Palo Alto Longevity
Prize
http://paloaltoprize.com/
offering two prizes, totaling $1 million to challenge scientists to "hack
the code of life" while pushing the human lifespan past 122 years, the
longest anyone has been recorded to live.
Fifteen scientific teams have entered the contest, which ends on Dec. 31,
2019, but will award the money for the first instance where restoring
vitality and extending the lifespan in mice by 50 percent is... 阅读全帖 |
|
发帖数: 1 | 25 【Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH D005368
[edit on Wikidata]
Filariasis is a parasitic disease caused by an infection with roundworms of
the Filarioidea type.[1] These are spread by blood-feeding black flies and
mosquitoes. This disease belongs to the group of d... 阅读全帖 |
|
发帖数: 1 | 26 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
|
发帖数: 1 | 27 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
|
发帖数: 1 | 28 12月28日 仔细阅读以下文章
或许这些文章可以告诉你们孩子被伤害病毒的答案。
Astellas Pharma 应该和这些人体实验有莫大的关系！
Founded 2005; 11 years ago
Headquarters 2-5-1, Nihonbashi-Honcho, Chūō-ku, Tokyo 103-8411, Japan
Key people Yoshihiko Katakana
(President and CEO)
Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH ... 阅读全帖 |
|
|
m****n
发帖数: 23 | 30 事故story：上个月租车在加州一条State route上行驶，快到一路口（无红绿灯）时一
辆车忽然从垂直的那条路上左拐进来，我前面的A车急刹车停住，而我来不及刹住还是
撞到A的后面，我的前面bumper和他的后面bumper损坏。警察过来后觉得没大事，没有
留下report。
关于保险：没有买租车公司的保险，而是第三方Allianz公司的Collision/Loss Damage
Insurance，用来cover所租的车。
现在问题来了，租车公司给我和保险公司的账单显示：
4k: Physical Damage
200: Loss of Use (5.16 days at $41.57)*
150: Administrative Fee
1.5k: Diminution of Value
40: DV Appraisal Fee
Total Claim Amount接近6k
但保险公司给租车公司说他们不cover其中diminiution of value那部分，就是车的价
值折损费。租车公司委托一家Hybrid Claimg Group公司做的diminiution value... 阅读全帖 |
|
F***Q
发帖数: 6599 | 31
nobody wants to drive the same car for the lifetime anyways. in 50 years,
maybe we don't even need a car around ...
of course everything has a lifespan, but AC induction motor has nearly no
physical wearing and only one moving part, comparing to ICE with hundreds of
moving parts, the much longer lifespan of AC motors is not so hard to see. |
|
F***Q
发帖数: 6599 | 32
this is also not exactly accurate.
to extend lifespan of batteries, most plugin hybrid use only a portion of
the full battery pack for charging/discharging.
in the case of XC90 T8, the battery pack has 9.2kWh full capacity, but only
6.7kWh is usable. Therefore, the charging level is maintained between 14% to
86%. the car will never have 100% charging/discharging, resulting in a much
longer battery lifespan.
similarly, Gen1 volt has a more conservative depth of charge (10.6kWh usable
over 17.1kW... 阅读全帖 |
|
F***Q
发帖数: 6599 | 33
there are no officially published data, but this is the general speculation:
sleeping cells will be wakeup when the full capacity shrinks due to Li-ion
dendrite formation. so, the lower the depth-of-charge, the more buffer for
maintaining the usable capacity.
regarding different models, only tesla owners had crowdsourced the battery
lifespan data for Model S
http://insideevs.com/tesla-model-s-battery-degradation-data/
it does not look bad at all. for other makers, only case studies
from high-mi... 阅读全帖 |
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d**z
发帖数: 3577 | 34 【 以下文字转载自 Military 讨论区 】
发信人: dmjz (东门虎西门豹), 信区: Military
标 题: Palo Alto Longevity Prize
发信站: BBS 未名空间站 (Sun Jan 3 05:44:52 2016, 美东)
Silicon Valley hedge fund Joon Yun last year offered the Palo Alto Longevity
Prize
http://paloaltoprize.com/
offering two prizes, totaling $1 million to challenge scientists to "hack
the code of life" while pushing the human lifespan past 122 years, the
longest anyone has been recorded to live.
Fifteen scientific teams have entered the contest, which ends on Dec... 阅读全帖 |
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发帖数: 1 | 35 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
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d**z
发帖数: 3577 | 36 【 以下文字转载自 Military 讨论区 】
发信人: dmjz (东门虎西门豹), 信区: Military
标 题: Palo Alto Longevity Prize
发信站: BBS 未名空间站 (Sun Jan 3 05:44:52 2016, 美东)
Silicon Valley hedge fund Joon Yun last year offered the Palo Alto Longevity
Prize
http://paloaltoprize.com/
offering two prizes, totaling $1 million to challenge scientists to "hack
the code of life" while pushing the human lifespan past 122 years, the
longest anyone has been recorded to live.
Fifteen scientific teams have entered the contest, which ends on Dec... 阅读全帖 |
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c****8
发帖数: 407 | 37 LED - Comparing with LCD, it is lighter (weight), thinner, saving a bit more
energy, and the picture may be better when you view from angle. However, it
has the shortest life comparing with LCD or Plasma. I remember some
articles claiming LED is 40k hours, LCD is 60k hours and Plasma is 90k hours
. Some people claim LED light may got darker after only 25k hours. (This
lifespan are only talking about the "Light source" they used, your TV can be
death for other reasons.)
LCD - From picture quality... 阅读全帖 |
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t******g
发帖数: 17520 | 40 继续他们的故事， average lifespan 2分钟22秒。。。。。@@
Vault of Glass contains two hard-as-nails boss fights set across four
encounters. Primeguard was a six-person team made up of three Titans, two
Hunters and one Warlock. They died a combined total of 1606 times, but
scored 5733 kills during the clear, making for a kill/death ratio average of
3.59.
Their average lifespan was 2 minutes, 22 seconds. Thanks to Destinydb for
the stats.
Bungie acknowledged Primeguard's achievement in a tweet |
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a***t
发帖数: 333 | 41 Hope everybody here isn't just easily believe what a program says or what
others say. Do your homework and search proof to what you hear.
It is widely accepted in science world that, at least in animal tests, (1)
high metabolic rate is linked to shortened lifespan (2)food restriction has
been shown to extend lifespan.
It is more complicated in human world than that in animal tests. I am still
doing my work on understanding how these conclusions can help me adjust my
diet and exercise... |
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r****z
发帖数: 12020 | 42 google Samoyed lifespan
得到结果：
12 – 13 y
Samoyed, Lifespan
上当只上一回。 |
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T******e
发帖数: 18290 | 43 1，婴儿也是人
2， 你看你引文里说了什么：
The fact is that the maximum human lifespan — a concept often confused with
"life expectancy" — has remained more or less the same for thousands of
years.
这篇文章说的2000年没变的是 maximum human lifespan |
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i*****i
发帖数: 2734 | 45 The average lifespan of strictly outdoor cats is estimated to be
approximately 1 year of age; indoor-outdoor cats about 3-6 years and indoor
only cats have an average lifespan closer to 13-15 years.
-- this is why。 |
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J*****3
发帖数: 4298 | 46 The Centers for Disease Control and Prevention, often the harbinger of bad
news about e. coli outbreaks and swine flu, recently had some good news: The
life expectancy of Americans is higher than ever, at almost 78.
Discussions about life expectancy often involve how it has improved over
time. According to the National Center for Health Statistics, life
expectancy for men in 1907 was 45.6 years; by 1957 it rose to 66.4; in 2007
it reached 75.5. Unlike the most recent increase in life expectancy ... 阅读全帖 |
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发帖数: 1 | 47 太阳 10 billion years.
红矮星 trillions of years.是太阳的1000 倍
https://en.wikipedia.org/wiki/Red_dwarf
It is believed that the lifespan of these stars exceeds the expected 10-
billion-year lifespan of our Sun by the third or fourth power of the ratio
of the solar mass to their masses; thus, a 0.1 M☉ red dwarf may
continue burning for 10 trillion years
Stellar models indicate that red dwarfs less than 0.35 M☉ are fully
convective.[3] Hence the helium produced by the thermonuclear fusion of
hydrogen is c... 阅读全帖 |
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j*****j
发帖数: 39 | 48 我在一个烂校。我老板一点不push，可是已经第三年，我一篇文章还没有发。我们实验
室之前毕业的两个博士也一篇没发。我真是欲哭无泪！我能理解lifespan的痛苦，我也
希望能发篇文章。我要是碰见lifespan的老板，我估计我就卢钢第二。 |
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D*a
发帖数: 6830 | 49 为什么说小鼠的diet是single diet？里面也有蛋白质糖什么的啊。
而且欧洲和美国的diet成分差别很大，不同公司的diet差别也不小。CR不光是在某一个
实验室成功的吧。
而且CR相关的pathway也被证明control lifespan了
有文章证明如果不CR，只限制某几种特定的氨基酸，比如methionine ，有没有别的忘
了，也可以延长lifespan，这方面，richard miller做的老鼠，Linda Partridge做的
fly。
还有一篇证明线虫CR也可以延长寿命，作者忘了
其实我没看明白，你是想讨论CR延长寿命这个结论对不对？还是想讨论如何研究它的
mechanism？
undefined
has
controversy
there |
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