Influence of interface mixing on the magnetic properties of Ni/Pt multilayers

Motivated by existing experimental data, we study here the influence of interface mixing on the magnetic behavior of Ni-6/Pt-5(111) multilayers. In the present ab initio calculations the mixing, restricted to the interface layers, was simulated by ordered two-dimensional Ni-Pt lattices. Two different degrees of mixing of the components at the interface were considered-namely, 25% and 50%. The perfect interface was also calculated and for some of the systems orbital moments were obtained. We find that interface mixing explains rather well the observed magnetic moment profile for Ni sites. But even with the inclusion of orbital contributions, the theoretical results tend to underestimate the induced moment at the Pt sites found experimentally.661

Self-consistent electronic structure of Mo(001) and W(001) surfaces

We report results for the surface band structures of molybdenum and tungsten (001) surfaces by employing the surface version of the first-principles, self-consistent real-space linear muffin-tin orbital method in the atomic sphere approximation. The surface state dispersions as well as the spectral density of states were obtained employing the transfer matrix scheme. The resulting surface band structures are compared with recent experimental measurements at temperatures above the transition temperature, as well as theoretical self-consistent calculations.6115104171042

Brazilian practice guidelines for stroke rehabilitation: Part II

The Brazilian Practice Guidelines for Stroke Rehabilitation – Part II, developed by the Scientific Department of Neurological Rehabilitation of the Brazilian Academy of Neurology (Academia Brasileira de Neurologia, in Portuguese), focuses on specific rehabilitation techniques to aid recovery from impairment and disability after stroke. As in Part I, Part II is also based on recently available evidence from randomized controlled trials, systematic reviews, meta-analyses, and other guidelines. Part II covers disorders of communication, dysphagia, postural control and balance, ataxias, spasticity, upper limb rehabilitation, gait, cognition, unilateral spatial neglect, sensory impairments, home rehabilitation, medication adherence, palliative care, cerebrovascular events related to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, the future of stroke rehabilitation, and stroke websites to support patients and caregivers. Our goal is to provide health professionals with more recent knowledge and recommendations for better rehabilitation care after stroke