三聚氰胺是个明星分子了，不是因为它在Angew. Chem. Int. Ed.封面秀过，而是因为它引发了中国出口食口安全的全球性关注——那年，中国饲料毒死了美国猫猫，就是加了这玩意儿。
当时我厚脸无耻地以一个chemist自居地去看了好多报道，特别记得在有一篇报道中很多饲料厂的人都说多新鲜啊加这玩意儿有什么奇怪的——都加的啊！
三聚氰胺的最初牺牲者是美国猫猫而不是中国农民这一点我一直不知道应该引以为豪还是引以为耻……
加这虾米胺的动机好像没别的，都是为了提高产品的含氮量。这一点我非常困惑，是不是现在的生物化学和分析化学仍然处于这么落后的水平吗？测量产品的 蛋白质含量还是用古老的定氮法吗？蛋白质含量能跟含氮量等同吗？起码应该搞个screening或者生物芯片什么的啊。肽链能不能PCR的？PCR一下 label一下都比定氮要强吧？有没有做质检的人跟我讲一下呢？照我这个伪化学家的理解，这种方法土到无以复加的地步了。
不过也是，土就土呗，干嘛要改进？改进了好多人就没钱入口袋了。大把人希望它土下去，永远地土下去……
你们不随时准备下一秒进入求生不得求死不得的境界的咩？难怪小小事情就要宗教。宗教可以免去你人做任何思想准备的麻烦，反正明天车祸高位截瘫也是上天旨意，当然失恋都很高兴啦。真是应了一句话，少壮不努力，老大徒伤悲。
经过这几天我发现让太多人太了解自己真的很不好。一贯以来的收藏方针应该一如既往地贯彻下去。一下子就告别两人，马上就重新回到真正的一个人了。开学我是住哪儿来着？MSN没有聊天纪录，靠！不怕，我自己打电话去学院再问一次。然后找胡小波帮我问问研二楼下阿姨的电话。一切都自己解决，就可以免去“搭讪”或说难听点“犯贱”的嫌疑。做人光是问心无愧是没有用的，要做到连嫌疑都没有。
一可以入宿，我就第一时间收拾东西，第一时间call老爸，第一时间进去，第一时间交150块端口费，第一时间布置好我的小音响，第一时间播放勃一（钢协也好交响曲也好全部照杀）。为我重新回到一个人而庆祝！
想想可真有些兴奋！
This report appeared on the Science & Medicine section of LAT, which I appear to have subscribed. I love avoiding politics but, if sport is separated from politics, I might be allowed to talk about this a little.
The scientists cited in this report argued that ages can be easily pinpointed by forensic radiology:
Bones fuse together according to a well-documented schedule. For girls between the ages of 13 and 17, the best places to look are the knee, wrist, elbow and iliac crest on the pelvis, he said. The younger they are, the more obvious the evidence.
“A Caucasian girl is going to fuse her knee centers at about age 15; they’re going to fuse their iliac crest at about age 16; and part of the elbow will start fusing around 13 or 14,” he said. “That’s the way you do it.”
For the Chinese gymnasts, investigators would have to consult growth tables for Asian girls, Brogdon said.
Although confronted with some opposite opinion by other expert as
One complication with teenage girls is that strenuous exercise can suppress estrogen production, delaying bone development and making them appear to belong to a younger person, said Dr. Vicente Gilsanz, a professor of radiology and pediatrics at USC.
Brogdon still insisted that
But Brogdon said that by comparing multiple bones, “you could come pretty close” to distinguishing a 14-year-old from a 16-year-old.
More evidence can allegedly obtained from modern Odontology:
He [D. Senn] said he can pinpoint ages within 18 months using images of a person’s wisdom teeth, which start forming around age 9 and are not fully developed until around 19. For the Chinese gymnasts, Senn said, he would also look at their second molars, which grow until age 15 or so.
Finally, I think the most spicy sentence in this report is:
“If there is nothing to be afraid of, let their kids be X-rayed,” he said. “It’s almost incriminating if they don’t.”
Let’s reflect this issue with logic. IOC checks the gymnasts’ age by what shown from their passports, so China provided the ‘right’ passport for He Kexin. Therefore one should check the gymnasts’ age by what people can’t provide so easily, which is definitely not their passports, but others for example odontological evidences.
This suggestion should have been sent to IOC, and the latter should have revise its rules in the section of legal age of participants, and check all candidates of gymnastics with their teeth and bones for validity, rather than ages shown on their passports. Imaginably under the new rule some candidates may have been brushed off because of their bone condition even if their passports show 16-above ages.
Therefore China may then have chosen girls with the right teeth and bones instead of passports for a gold medal, if it is teeth and bones that concerns. And maybe another ‘He Kexin’ with perfect odontological condition but shown 14 only according to her passport may have been allowed on the uneven bars. Obviously this sounds more imaginable than feasible.
So why not both passports and bones should be checked together? Because letting the odontological perfect ‘He Kexin’ also be perfect in passport seems much less easier for China.
If China is deemed ‘always lying’, there is no hope that any kind of regulation could help it out of guilty. Sending He Kexin for X-ray study may not help much because the results may still be fabricated or manipulated by China. Even if it is not, new techniques besides forensic radiology/odontology that can ‘pinpoint ages’ within smaller range of error will keep being suggested by scientists like those in this LAT reports. And China should send He Kexin for all these up-coming tests successively. If not, it is still ‘almost incriminating’.
And I’m pretty sure the problem is not with the rule of IOC which is somewhat omissive, but the honesty of a nation which is deemed somewhat lacking. The problem is not whom the gold medal of female uneven bar should belong to – it belongs to China according to IOC and He Kexin’s passport – but whether China have manipulated, if not fabricated, the legal fact of her age, a problem of ethics, and, because of onus probandi and the infinitive suggestion of new sources of evidence possible, a problem that set China in an endless suspect. China may still reserve one of its 51 golds which it wants, but lose the ethical acknowledgment globally, which it wants more.