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紫牛荐书|力压东野圭吾,今年最火的推理小说来了!
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专访泷井一博:作为日本式立宪国家之父的伊藤博文_研究
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Kyoto University Naïve and primed PSCs (iPS cells and embryonic stem cells) represent different periods in development (before and after the embryo implants itself into the uterus). Naïve PSCs can become all the major cell components that make up the villi, which goes on to become the placenta. Primed PSCs cannot and instead form cells that lead to the amnion. The Yasuhiro Takashima lab shows that naïve iPS cells can be induced to form all the stages that mimic early placenta development in humans. Gynecologist Shingo Io knows that during birth there will not only be a baby leaving the mother’s body. Joining the cries that bring joy to the room will be a silent entity, the placenta. Like the baby, this tissue only began to grow upon conception, but little is known about how the placenta develops inside the mother. A new study by Io, CiRA Junior Associate Professor Yasuhiro Takashima and colleagues reports how iPS cells can be used to study this development. The
BBC News
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An estimated 160 million Covid-19 vaccinations have been administered so far globally, but most of that has been in the US and Europe.
In the Asian region, vaccination programmes are steadily progressing in places like India which says it has administered around 14 million doses since January.
In others countries however, vaccine programmes are either yet to begin or are still at a very early stage. The reasons for this have been varied - ranging from an abundance of caution to high levels of vaccine scepticism.
We looked at some of the countries in this situation and the different reasons behind it.
What s causing vaccine delays in some Asian countries?
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