Strain tuned topology in the Haldane and the modified Haldane models.

We study the interplay between a uniaxial strain and the topology of the Haldane and the modified Haldane models which, respectively, exhibit chiral and antichiral edge modes. The latter were, recently, predicted by Colomés and Franz (2018 Phys. Rev. Lett. 120 086603) and expected to take place in the transition metal dichalcogenides. Using the continuum approximation and a tight-binding approach, we investigate the effect of the strain on the topological phases and the corresponding edge modes. We show that the strain could induce transitions between topological phases with opposite Chern numbers or tune a topological phase into a trivial one. As a consequence, the dispersions of the chiral and antichiral edge modes are found to be strain dependent. The strain may reverse the direction of propagation of these modes and eventually destroy them. This effect may be used for strain-tunable edge currents in topological insulators and two-dimensional transition metal dichalcogenides.

Sequelas invisíveis dos acidentes de trânsito: o transtorno de estresse pós-traumático como problema de saúde pública / Invisible sequels of traffic accident: the post-traumatic stress disorder as a public health problem

Este documento consolida os resultados obtidos no Seminário "Sequelas invisíveis dos acidentes de trânsito", realizado no contexto do projeto "Impactos sociais e econômicos dos acidentes de trânsito nas rodovias brasileiras". São identificadas características do transtorno de estresse pós-traumático decorrente de acidentes de trânsito, vítimas potenciais, sintomas, diagnóstico e fatores de risco e de proteção para o desenvolvimento do transtorno. Em seguida, são apresentados projetos e pesquisas realizadas no Brasil e no exterior sobre o tema. Finalmente, aborda-se o problema do transtorno de estresse pós-traumático sob a ótica da saúde pública e apresentam-se recomendações para políticas públicas voltadas para a redução dos impactos psicossociais da violência dos acidentes de trânsito.

This document consolidates the results of the Seminar "Invisible Squeals of Traffic Accidents" carried out as part of the Project "Social and Economic Impacts of Traffic Accidents in Brazilian Highways". To begin with, the characteristics of post-traumatic stress disorder related to traffic accidents are identified, as well as its potential victims, symptoms, diagnosis, as well as risk and protection factors for the development of the disease. Next, follows a brief description of projects and research developed in Brazil and abroad in the field. Finally, post-traumatic stress disorder is analyzed as a matter of Public Health and policy recommendations are presented as a suggestion to reduce the sociopsychological consequences of traffic accidents violence.

[Invisible sequels of traffic accident: the post-traumatic stress disorder as a public health problem]. / Sequelas invisíveis dos acidentes de trânsito: o transtorno de estresse pós-traumático como problema de saúde pública.

This document consolidates the results of the Seminar 'Invisible Squeals of Traffic Accidents' carried out as part of the Project 'Social and Economic Impacts of Traffic Accidents in Brazilian Highways'. To begin with, the characteristics of post-traumatic stress disorder related to traffic accidents are identified, as well as its potential victims, symptoms, diagnosis, as well as risk and protection factors for the development of the disease. Next, follows a brief description of projects and research developed in Brazil and abroad in the field. Finally, post-traumatic stress disorder is analyzed as a matter of Public Health and policy recommendations are presented as a suggestion to reduce the sociopsychological consequences of traffic accidents violence.

Sequelas invisíveis dos acidentes de trânsito: o transtorno de estresse pós-traumático como problema de saúde pública / Sequelas invisíveis dos acidentes de trânsito: o transtorno de estresse pós-traumático como problema de saúde pública

Identifica características do Transtorno de Estresse Pós-Traumático (TEPT) decorrente de acidentes de trânsito, vítimas potenciais, sintomas, diagnóstico e fatores de risco e de proteção para o desenvolvimento do transtorno. Apresenta projetos e pesquisas realizados no Brasil e no exterior sobre o tema. Aborda o problema do TEPT sob a ótica da Saúde Pública e apresenta recomendações para políticas públicas voltadas para a redução dos impactos psicossociais da violência dos acidentes de trânsito.