A mimetic finite difference scheme for the transient heat equation under Robin’s conditions is presented. The scheme uses second order gradient and divergence mimetic operators, on a staggered grid, to approximate th...
原文出处SCHÜNEMANN H J,CUELLO C,AKL E A,et al.GRADE guidelines:18.How ROBINS⁃I and other tools to assess risk of bias in nonrandomized studies should be used to rate the certainty of a body of evidence.J Clin Epidemi...
We propose the following conjecture on(σ)n the sum-of-divisors function:log(e'nlog logn-σ(n))/log(e'nlog log n)will increase strictly and converge to1 when n runs from the colossally abundant numbers to infinity Thi...
Toxic insects advertise their defended state to potential predators using warning displays. Frequently these displays use cues through more than one sensory modality, and combine color, smell and sound to produce a mu...