Hidden Materials

Emancipatory knowing: Hidden necessity

Background & Aim: Knowledge patterns in nursing are key foundation elements for the development of knowledge and practice. Carper identified four fundamental knowledge patterns; empirical, personal, ethical and aesthetic. Chain and Kramer added the pattern of emancipatory knowledge to Carperchr('39')s patterns. The pattern of emancipatory knowledge in nursing has been neglected. The aim of this...

Hidden orbital polarization in diamond, silicon, germanium, gallium arsenide and layered materials: Supplementary information

Supplemental Materials for: Stochastic Gradient MCMC Methods for Hidden Markov Models

t=1 p(yt|xt), where y = (y1, · · · yT ) denotes the data as real valued vector, and x = (x1, · · ·xT ) as discrete valued vector with xt ∈ {1, · · ·K},∀t. We can directly marginalize out the hidden variables, x, with matrix multiplication as p(y|θ) = 1T P (yT )A · · ·P (y1)A π0, where P (yT ) is a diagonal matrix and Pi,j(yt) = p(yt|xt = i)δi,j; 1T = (1, · · · , 1) is a row vector of k ones ( d...

Hidden orbital polarization in diamond, silicon, germanium, gallium arsenide and layered materials

It was previously believed that the Bloch electronic states of non-magnetic materials with inversion symmetry cannot have finite spin polarizations. However, since the seminal work by Zhang et al. (Nat. Phys. 10, 387–393 (2014)) on local spin polarizations of Bloch states in non-magnetic, centrosymmetric materials, the scope of spintronics has been significantly broadened. Here, we show, using ...

Uncovering Hidden Structure through Parallel Problem Decomposition for the Set Basis Problem: Application to Materials Discovery

Exploiting parallelism is a key strategy for speeding up computation. However, on hard combinatorial problems, such a strategy has been surprisingly challenging due to the intricate variable interactions. We introduce a novel way in which parallelism can be used to exploit hidden structure of hard combinatorial problems. Our approach complements divide-and-conquer and portfolio approaches. We e...