Uma “Relação circunstanciada... de Porto Seguro”: memória e história dos índios em um manuscrito colonial.

The document transcribed here is a descriptive document of the settlements of the old captaincy of Porto Seguro. Deposited in the National Archive of Rio de Janeiro, the document was written by the interim ombudsman João de Almeida Freire and is dated 1817. Among the numerous information contained in the manuscript, the narratives, images and memories formulated on the presence and participation of indigenous peoples in the history of the present extreme south of Bahia. Keywords: Indigenous History; Historical Memory; Porto SeguroO documento aqui transcrito é uma memória descritiva das povoações da antiga capitania de Porto Seguro. Depositado no Arquivo Nacional do Rio de Janeiro, o documento foi escrito pelo ouvidor interino João de Almeida Freire e é datado de 1817. Dentre as inúmeras informações contidas no manuscrito, destacam-se as narrativas, as imagens e as memórias formuladas sobre a presença e participação dos povos indígenas na história do atual extremo sul da Bahia. Palavras-Chave: História Indígena; Memória Histórica; Porto SeguroEl documento transcrito aquí es una memoria descriptiva de los pueblos de la antigua capitanía de Porto Seguro. Depositado en los Archivos Nacionales de Río de Janeiro, el documento fue escrito por el defensor del pueblo interino João de Almeida Freire y tiene fecha de 1817. Entre la innumerable información contenida en el manuscrito, las narraciones, imágenes y recuerdos sobre la presencia y participación de los pueblos indígenas en la historia del extremo sur actual de Bahía. Palabras clave: historia indígena; Memoria histórica; Puerto segur

Historia del Pataxó en el Extremo Sur de Bahía: Temporalidades, Territorializaciones y Resistencias

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Spin-Polarized Tunable Photocurrents

Harnessing the unique features of topological materials for the development of a new generation of topological based devices is a challenge of paramount importance. Using Floquet scattering theory combined with atomistic models we study the interplay among laser illumination, spin, and topology in a two-dimensional material with spin-orbit coupling. Starting from a topological phase, we show how laser illumination can selectively disrupt the topological edge states depending on their spin. This is manifested by the generation of pure spin photocurrents and spin-polarized charge photocurrents under linearly and circularly polarized laser illumination, respectively. Our results open a path for the generation and control of spin-polarized photocurrents.Fil: Berdakin, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Teórica y Computacional; ArgentinaFil: Rodríguez Mena, Esteban A.. Universidad de Chile; ChileFil: Foa Torres, Luis Eduardo Francisco. Universidad de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Which one is your team? Supraordinate identity around the classic match

Objective The article analyzes up to what extent the supraordinate identity made up by the classic match, influences fans’ consumption intention of media and official merchandise, through a justifiability mediation, while assessing a moderation effect that an identity threat has on the proposed model. Method The phenomenon was tested through structural equation modeling on a 439 fanbase sample. Participants are fans from both of the clubs who play the Classic match of their league and were randomly allocated into a threat circumstance or a control situation in order to test the identity threat moderation effect. Results Findings suggest that this supraordinate identity has a positive impact on media and merchandise consumption intentions, while legitimacy and permeability forecast its existence. These results argue that fans from both teams experience an identity threat either when their club is under menace and when their rival is. Conclusion This is the first article examining a supraordinate identity fabricated by salient rivalries, which is counterintuitive, and how these individuals experience an identity threat when their rival is at risk. The Classic denotes an important marketing instrument, where leagues and clubs can develop stories and rivalries to attract broader audiences

The Implementation of Payroll Accounting System as an Effort to Improve the System of Internal Control (a Study at Pdam Kota Malang)

This research aims to determine the implementation of payroll accounting system in PDAM Kota Malang as an effort to improve the internal control system and to provide the alternative problem solving if obstacles related to the system exists. Using descriptive method, the researcher obtained relevant data by using interview and documentation. The result shows that the system is well-implemented and it supports the internal control. It is evidenced by the involvement of related functions in the processing the payroll effectively. Also, the authorization of every job is clear and following the procedure. This study suggests the company to add more specific information related to income tax discounted from the employees\u27 take home pays. This research also recommends the company to apply more complete flowchart of payroll system

Floquet chiral edge states in graphene

We report on the emergence of laser-induced chiral edge states in graphene ribbons. Insights on the nature of these Floquet states is provided by an analytical solution which is complemented with numerical simulations of the transport properties. Guided by these results we show that graphene can be used for realizing nonequilibrium topological states with striking tunability: while the laser intensity can be used to control their velocity and decay length, changing the laser polarization switches their propagation direction.publishedVersionFil: Pérez Piskunow, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Pérez Piskunow, Pablo Matías. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Usaj, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina.Fil: Usaj, Gonzalo. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina.Fil: Usaj, Gonzalo. Universidad Nacional de Cuyo. Instituto Balseiro; Argentina.Fil: Usaj, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Balseiro, Carlos A. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina.Fil: Balseiro, Carlos A. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina.Fil: Balseiro, Carlos A. Universidad Nacional de Cuyo. Instituto Balseiro; Argentina.Fil: Balseiro, Carlos A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Foa Torres, Luis Eduardo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Física de los Materiales Condensado

Modeling graphene-based nanoelectromechanical devices

We report on a theoretical study of charge transport properties of graphene nanoribbons under external mechanical stress. The influence of mechanical forces on the ribbon conductance is shown to be strongly dependent on the ribbon edge symmetry, i.e., zigzag versus armchair. In contrast to zigzag-edge nanoribbons which remain robust against high strain deformations, a stretching-induced metal-semiconductor transition is obtained for armchair-edge configurations. Our results point out that armchair edge ribbons are consequently much better suited for electromechanical applications.Fil: Poetschke, M.. Technische Universität Dresden; AlemaniaFil: Rocha, C. G.. Technische Universität Dresden; AlemaniaFil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Roche, Serge. Technische Universität Dresden; Alemania. Universite Grenoble Alpes. Institut Nanosciences et Cryogenie - Commissariat a L´Energie Atomique et Aux Energies Alternatives. Institut Nanosciences et Cryogenie; Francia. Centro de Investigación en Nanociencia y Nanotecnología (CIN2); EspañaFil: Cuniberti, G.. Technische Universität Dresden; Alemani

Robust edge states induced by electron-phonon interaction in graphene nanoribbons

The search of new means of generating and controlling topological states of matter is at the front of many joint efforts, including band-gap engineering by doping and light-induced topological states. Most of our understading, however, is based on a single particle picture. Topological states in systems including interaction effects, such as electron-electron and electron-phonon, remain less explored. By exploiting a nonperturbative and nonadiabatic picture, here we show how the interaction between electrons and a coherent phonon mode can lead to a band gap hosting edge states of topological origin. Further numerical simulations witness the robustness of these states against different types of disorder. Our results contribute to the search of topological states, in this case in a minimal Fock space.Fil: Calvo, Hernan Laureano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Universidad Nacional de Río Cuarto; ArgentinaFil: Luna, Javier Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Dal Lago, Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Foa Torres, Luis Eduardo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad de Chile. Facultad de Ciencias Físicas y Matemáticas; Chil

Irradiated graphene as a tunable Floquet topological insulator

In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in its quasienergy band structure and becomes a Floquet insulator. Here, we analyze how topologically protected edge states arise inside these gaps in the presence of an edge. Our results show that the gap appearing at hΩ/2, where hΩ is the photon energy, is bridged by two chiral edge states whose propagation direction is set by the direction of the polarization of the radiation field. Therefore, both the propagation direction and the energy window where the states appear can be controlled externally. We present both analytical and numerical calculations that fully characterize these states. This is complemented by simple topological arguments that account for them and by numerical calculations for the case of the semi-infinite sample, thereby eliminating finite-size effects.publishedVersionFil: Usaj, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina.Fil: Usaj, Gonzalo. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina.Fil: Usaj, Gonzalo. Universidad Nacional de Cuyo. Instituto Balseiro; Argentina.Fil: Usaj, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Pérez Piskunow, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Pérez Piskunow, Pablo Matías. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Foa Torres, Luis Eduardo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Foa Torres, Luis Eduardo Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Balseiro, Carlos A. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina.Fil: Balseiro, Carlos A. Comisión Nacional de Energía Atómica. Instituto Balseiro; Argentina.Fil: Balseiro, Carlos A. Universidad Nacional de Cuyo. Instituto Balseiro; Argentina.Fil: Balseiro, Carlos A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Física de los Materiales Condensado