Fossil cytoplasm is a new research topic of interest in paleobotany. Atomic force microscope (AFM) is a new technology applied widely in physics and biology; ho
在STOC 2009上,Dodis,Kalai和Lovett研究了(静态的)带有指数级难以求逆辅助输入的LPN(Learning Parity with Noise)问题的困难性,他们通过引入一个新的假设(被称为带噪声的子空间学习问题,Learning Subspace with Noise)证明了LPN问题在高噪声条件下是准多项式(quasi-polynomial)困难的,然而他们的结果并未在L
Specimens of fossil wood preserved lignified in Pliocene brown coal and identified as Pinus armandii Francher come from an opencast coalmine at Longling in west