First British baby born using transplanted womb from dead donor
The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
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But they failed to invest in maintaining oil production levels, which have plummeted in recent years – partly, but not solely, because of US sanctions, which could now be revised.
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