后使用快捷导航没有帐号？
虽然放眼望去一堆粗放派，不过诸如《投影寻真》、《像素魂斗罗2》、《羊群终结者》等...
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真正的低端，那就要真正的低价。
日本市场是一个有点奇怪的市场，因为在全世界正在抛弃翻盖手机的时候，日本用户依旧对...
推出时名声响亮，但好景不长。你还没开始用呢，它就结束了。
如果你不喜欢在 iPad 屏幕上进行四指滑动操作，那么你可以选择使用这款新的插件 Switc...
Com2uS 新作《龙族骑士（Dragon Knights）》近日新鲜上架，这款 RPG 再一次加入“龙族...
SQUARE ENIX 在手游平台上如果不炒冷饭的话，那多半就要坑一个大的，比如说日本区最近...
Cartoon Network 的《探险活宝》系列又出新作了，这款命名为《探险活宝：游戏巫师...
《僵尸防线》（Zombies: Line of Defense）是一部传统的塔防作品，它出自打造了《玩...
《Workflow》非常注重鼓励用户自己定制 Workflow，而不是打造成一个极客的玩具，随着...
如今手游平台发展迅猛，作品也从当初的贪吃蛇、拼图等简单休闲益智游戏开始往更多元化...
继续《时间之谜3：最终谜团》之后，Artifex Mundi sp. z o.o. 还是把《时间之谜》系列...
PowerLite是一款可以插入智能手机的外置闪光灯。除了能在黑暗场景当中提供足够的光亮...
通过 Citrix 的远程桌面应用，再加上 Citrix X1 鼠标和蓝牙外接键盘，iPad 就可以变身...
未来能插 Lightning 接口就好了。
去年，苹果悄悄地为其 iOS 设备的 Lightning 接口添加了一项新规范，允许第三方厂商生...
智能手机续航仍然是目前业界仍难解决的最大难题，应运而生的充电宝虽说能暂时的为智能...
目前围绕苹果移动设备而诞生的硬件生态系统越来越庞大，苹果也想出新的对策，在其中选...
拿手机出来看个信息而已，敢不敢再装 X 一点。
市面上大多数的车载支架大多比较庞大，安装和使用都有诸多不便，安装在挡风玻璃上还容...
可是gm还是打不开报刊杂志啊？
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版本号都是一样的，我这也是用不成啊，刷完了看最终版能不能用
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重启了倒是可以进报刊杂志了，但是谷歌地图现在为毛没有路线了！
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无需重启，重新登录你的app store ID就好了
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Powered by Discuz!路透社：产生抗性超级害虫嘲笑孟山都享用转基因Bt玉米
美国最近一期《转基因作物与食品》（GM Crops &
Food）发表了美国爱荷华州立大学学者们的一篇研究论文揭示，不断增长数量的食虫目前已经能够狼吞虎咽享用转基因Bt玉米，而这种转基因Bt玉米特定被孟山都设计转基因来杀灭的正是这种害虫。其他州的研究也揭示食虫群对转基因Bt玉米正在增长抗性。美国学者因此将这些昆虫称之为“超级害虫”这项项新的研究表明，尽管孟山都这个生物技术巨头最近在国会中或许取胜，它永远无法胜过自然界。
日发表中国研究发现转基因作物有益农业生态系统》，借中国农业科学院的吴孔明教授大肆吹嘘转基因Bt作物“作为防治害虫的一项举措，转基因农作物拥有巨大优势”。十天后，6月25日公布的美国爱荷华州学者该项研究，对吴孔明教授如同一记响亮的嘴巴！&&&
Superbug vs. Monsanto: Nature rebels
against biotech titan
路透社：超级害虫与孟山都对决：大自然抗逆生物技术巨头
翻译转载自《路透社》网站：
Published: 25 June,
2012年6月25日发表
TAGS: , , , ,
A growing number of rootworms are now able to devour genetically
modified corn specifically designed by Monsanto to kill those same
pests. A new study shows that while the biotech giant may triumph
in Congress, it will never be able to outsmart nature.
Western corn rootworms have been able to harmlessly consume the
genetically modified maize, a research paper published in the
latest issue of the journal
[1]. A 2010 sample of the rootworm population
had an elevenfold survival rate on the genetically modified corn
compared to a control population. That’s eight times more than the
year before, when the resistant population was first
identified.
GM Crops &
FoodBt[1]2010Bt1120098
Experts are also noting that this year’s resistant rootworm
populations are maturing earlier than expected. In fact, the time
the bug’s larvae hatched was the earliest in decades.
“The Western corn rootworm 'season' is underway at a pace
earlier than I have experienced since I began studying this
versatile insect as a graduate student in the late 1970s,”
entomologist Mike Gray wrote in The Bulletin, a periodical issued
by the University of Chicago’s Department of Crop
Studies in other states have also revealed that the rootworm
population is becoming increasingly resistant to genetically
modified corn. Last year, Iowa State University researcher Aaron
Gassmann noted that a number of farmers reported discovering, much
to their dismay, that a large number of rootworms survived after
the consumption of their GM crops. Gassmann branded these pests
“superbugs.”
Farmers and food companies have increasingly been dependent on GM
crops, and many have abandoned crop rotation, a practice that has
been used to stave off pest infestations for centuries. Some have
even gone as far as to ignore federal regulation, which require the
GM corn plantations be accompanied by a small “refuge” of
non-GM maize.
The recent findings have potentially devastating ramifications for
both farmers and consumers. Genetic maize plantation would easily
come under attack from the swelling number of “superbugs,”
resulting in dwindling harvest numbers for farmers. Ultimately,
consumers will pay the price not only for corn, an essential
product whose derivatives are used in a plethora of products
ranging from yogurts to baby powder, but for other crops sold in
the market. Rising corn prices would mean that more farmers would
plant corn, despite the risks, and the yield for other crops would
drop. That would drive prices for virtually all food items up,
hitting hard on a population already smitten by ongoing economic
difficulties.
Monsanto launched its anti-rootworm GM corm in 2003. The Cry3Bb1
protein, derived from the Bacillus thuringiensis (Bt.) bacterium,
was inserted into the corn’s genetic code. The embedded protein was
supposed to be fatal to all rootworms.
2003BtCry3Bb1Bt
The recent findings came days after Monsanto, along with other
biotech companies, , which okayed the manufacture of GM crops
despite pending legal challenges. Many of the lawsuits that
Monsanto faces include assessments that its crops are unsafe for
human consumption and affect the health of unborn
Monsanto has also been an active plaintiff itself. Its primary
targets include entities that seek to label GM foods, and small
farmers, whom the biotech behemoth accuses of using genetically
modified crops patented by Monsanto.
北京部分家长和志愿者致北京市食品安全办公室的信
.cn/s/blog_4bb17e9d.html
.cn/s/blog_4bb17e9d0102e0vh.html
.cn/s/blog_4bb17e9d0102e0ri.html
已投稿到：
以上网友发言只代表其个人观点，不代表新浪网的观点或立场。GM crops, the environment and sustainable food production.
- PubMed - NCBI
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):915-21. doi: 10.-013-9756-x. Epub
2013 Oct 23.GM crops, the environment and sustainable food production.1.1President Emeritus, Missouri Botanical Garden, P. O. Box 299, St. Louis, MO, , USA, peter.raven@mobot.org.AbstractToday, over 7.1 billion people rely on the earth's resources for sustenance, and nearly a billion people are malnourished, their minds and bodies unable to develop properly. Globally, population is expected to rise to more than 9 billion by 2050. Given the combined pressures of human population growth, the rapidly growing desire for increased levels of consumption, and the continued use of inappropriate technologies, it is not surprising that humans are driving organisms to extinction at an unprecedented rate. Many aspects of the sustainable functioning of the natural world are breaking down in the face of human-induced pressures including our individual and collective levels of consumption and our widespread and stubborn use of destructive technologies. Clearly, agriculture must undergo a redesign and be better and more effectively managed so as to contribute as well as possible to feeding people, while at the same time we strive to lessen the tragic loss of biodiversity and damage to all of its productive systems that the world is experiencing. For GM crops to be part of the solution, biosafety assessments should not be overly politically-driven or a burdensome impedance to delivering this technology broadly. Biosafety scientists and policy makers need to recognize the undeniable truth that inappropriate actions resulting in indecision also have negative consequences. It is no longer acceptable to delay the use of any strategy that is safe and will help us achieve the ability to feed the world's people. PMID:
[PubMed - in process]
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