The Effect of Recency to Human Mobility

In recent years, we have seen scientists attempt to model and explain human dynamics and, in particular, human movement. Many aspects of our complex life are affected by human movements such as disease spread and epidemics modeling, city planning, wireless network development, and disaster relief, to name a few. Given the myriad of applications it is clear that a complete understanding of how people move in space can lead to huge benefits to our society. In most of the recent works, scientists have focused on the idea that people movements are biased towards frequently-visited locations. According to them, human movement is based on an exploration/exploitation dichotomy in which individuals choose new locations (exploration) or return to frequently-visited locations (exploitation). In this work, we focus on the concept of recency. We propose a model in which exploitation in human movement also considers recently-visited locations and not solely frequently-visited locations. We test our hypothesis against different empirical data of human mobility and show that our proposed model is able to better explain the human trajectories in these datasets

Manipulation of Magnetic Skyrmions by Superconducting Vortices in Ferromagnet-Superconductor Heterostructures

Dynamics of magnetic skyrmions in hybrid ferromagnetic films harbors novel physical phenomena and holds promise for technological applications. In this work, we discuss the behavior of magnetic skyrmions when coupled to superconducting vortices in a ferromagnet-superconductor heterostructure. We use numerical simulations and analytic arguments to reveal broader possibilities for manipulating the skyrmion-vortex dynamic correlations in the hybrid system, that are not possible in its separated constituents. We explore the thresholds of particular dynamic phases, and quantify the phase diagram as a function of the relevant material parameters, applied current and induced magnetic torques. Finally, we demonstrate the broad and precise tunability of the skyrmion Hall-angle in presence of vortices, with respect to currents applied to either or both the superconductor and the ferromagnet within the heterostructure

Prediction of wrinkling and springback in sheet metal forming

The finite element simulation is currently a powerful tool to optimize forming processes in order to produce defect-free products. Wrinkling and springback are main geometrical defects arising in sheet metal forming. Nevertheless, the prediction of such defects requires accurate numerical models. This study presents the experimental and numerical analysis of a rail with high tendency to develop both wrinkling (top surface of geometry) and springback (flange). The punch force evolution and the final geometry of the rail, evaluated in four different cross-sections, are the main variables analysed. Globally, the numerical results are in good agreement with the experimental measurements. However, the shape of the wrinkle is significantly influenced by the symmetry conditions considered in the model (1/4 of the blank). In fact, considering the full model of the blank, the numerical results are in better agreement with the experimental ones. On the other hand, the computational cost of the numerical simulation considering the full blank is approximately 12 times higher than using 1/4 of the blank.The authors gratefully acknowledge the financial support of the Portuguese Foundation for Science and Technology (FCT) under projects with reference UID/EMS/00285/2013, PTDC/EMS-TEC/0702/2014 (POCI-01-0145-FEDER-016779) and PTDC/EMS-TEC/6400/2014 (POCI-01-0145-FEDER-016876) by UE/FEDER through the program COMPETE2020. The first author is also grateful to the FCT for the Postdoctoral grant SFRH/BPD/101334/2014

O São João Também é Trans

Resenha do filme de Thiago de Castro sobre a experiência das mulheres trans nas quadrilhas juninas de Sobral-C

Multiple myeloma with cells typically seen in storage diseases

We report on a rare case of multiple myeloma with atypically large cells containing a great amount of azurophilic inclusions usually seen in storage diseases.Universidade Federal de São Paulo (UNIFESP) Hematology and Transfusion Medicine DepartmentHospital Alemão Oswaldo Cruz CICAP LaboratoryUNIFESP, Hematology and Transfusion Medicine DepartmentSciEL

A Igreja Católica e os Movimentos Sociais do Campo: A Teologia da Libertação e o MST

O Movimento dos Trabalhadores Rurais Sem Terra (MST) do Brasil tem origem vinculada às ações das Igrejas, principalmente da Igreja Católica, em sua vertente denominada Teologia da Libertação. Esse movimento teológico sempre esteve muito próximo das análises sociais socialistas, utilizando, muitas vezes, um referencial marxista. As relações da Igreja Católica com os movimentos sociais do campo foram muito presentes no Brasil, e este trabalho apresenta as relações sociais, políticas e teológicas presentes no MST, já que, desde as primeiras ocupações de terra realizadas por componentes do Movimento, a presença da Igreja Católica é constante. Assim, com foco na relação entre Igreja e MST, este artigo analisa como as mudanças políticas, com a crise do socialismo e o avanço do conservadorismo, impactam as ações do Movimento dos Sem Terra. PALAVRAS-CHAVE: Teologia da Libertação, MST, Igreja Católica, movimentos sociais, socialismo. THE CATHOLIC CHURCH AND THE RURAL SOCIAL MOVEMENTS: the Liberation Theology and the Movement of the Landless Rural Workers Antonio Julio Menezes Neto The Movement of the Landless Rural Workers (in portuguese, MST), of Brazil, has its origin linked to the actions of Churches, mainly of Catholic Church, in its tendency denominated Liberation Theology. This theological movement was always very close of the socialist social analyses, using, a lot of times, the marxist referencial. The relations of the Catholic Church with the rural social movements were very present in Brazil and this paper presents the social/political and theological relations present in the MST, since from the first land occupations accomplished by components of the Movement, the presence of the Catholic Church is constant. Thus, focused in the relation between Church and MST, this paper analyzes how political change, with the crisis of socialism and the progress of conservatism, alter the actions of the Movement of Landless Rural Workers. KEYWORDS: Liberation Theology, MST, Catholic Church, social movements, socialism. L’ÉGLISE CATHOLIQUE ET LES MOUVEMENTS SOCIAUX À LA CAMPAGNE: la Théologie de la Libération et le Mouvement des Travailleurs Ruraux Sans Terre Antonio Julio Menezes Neto L’origine du Mouvement des Travailleurs Ruraux Sans Terre – MST, au Brésil, est liée aux actions des Églises, et tout particulièrement à l’Eglise Catholique, dans sa ligne d’action appelée Théologie de la Libération. Ce mouvement théologique a toujours été très proche des analyses sociales socialistes et a souvent pris le marxisme comme référence. Les relations entre l’Église Catholique et les mouvements sociaux à la campagne ont été très intenses au Brésil. Ce travail présente les relations sociales/politiques et théologiques qui existent au sein du MST puisque la présence de l’Eglise Catholique a été constante dès les premières occupations de terres faites par des membres du Mouvement. C’est ainsi que, en se concentrant sur cette relation Eglise et MST, l’article analyse comment les changements politiques, avec la crise du socialisme et l’avancée du conservatisme, ont un impact sur les actions du Mouvement des Travailleurs Ruraux Sans Terre. MOTS-CLÉS: Théologie de la Libération, MST, Église Catholique, mouvements sociaux, socialisme. Publicação Online do Caderno CRH: http://www.cadernocrh.ufba.b

Estudo da satisfação de clientes internos com reporte dos serviços de sistemas de informação na SONAE MC

Estágio realizado na empresa SONAE MC e orientado pela Dr.ª Teresa Guedes OliveiraTese de mestrado. Engenharia de Serviços e Gestão. Faculdade de Engenharia. Universidade do Porto. 201

Seroprevalence of Bordetella pertussis in healthcare workers in a Portuguese tertiary referral hospital

info:eu-repo/semantics/publishedVersio