Electronic Voting: the Devil is in the Details

Observing electronic voting from an international point of view gives some perspective about its genesis and evolution. An analysis of the voting process through its cultural, ontological, legal and political dimensions explains the difficulty to normalize this process. It appears that international organizations are not capable to properly defend the fundamental rights of the citizens. The approach that was taken when DRE voting computers appeared seems to have reoccured with VVAT voting computers and the european e-poll project.Comment: 9 page

Weaknesses in the fundamental processes among secondary school general mathematics pupils.

Thesis (M.A.)--Boston Universit

Enrichment of the r-process Element Europium in the Galactic Halo

We investigate the enrichment of europium, as a representative of r-process elements, in the Galactic halo. In present chemical evolution models, stars are assumed to be formed through shock processes by supernovae (SNe). The enrichment of the interstellar medium is calculated by a one-zone approach. The observed large dispersions in [Eu/Fe] for halo stars, converging with increasing metallicity, can be explained with our models. In addition, the mass range of SNe for the {\it r}-process site is constrained to be either stars of $8-10 M_\odot$ or $\gtrsim 30 M_\odot$.Comment: 5 pages (including 4 figures), LaTeX, uses aas2pp4.sty, accepted to ApJ

O DNA da dominação masculina : pornografia e violência contra as mulheres

Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Comunicação, Departamento de Jornalismo, 2019.O presente trabalho investiga a temática da misoginia na pornografia, especificamente como violência contra as mulheres, o incesto, a pedofilia e o consentimento são representados nestes materiais. Para tanto, é feita uma análise de 20 vídeos da categoria “Mais vistos” do site PornHub, utilizando as teorias e conceitos das teóricas feministas Andrea Dworkin, Catharine MacKinnon, Gail Dines e Raisa Ribeiro. Busca-se analisar os aspectos da pornografia que a fazem ser considerada por muitas feministas como um produto prejudicial para as mulheres e para a promoção da igualdade de gênero. A análise demonstra que a pornografia apresenta narrativas nas quais diversos tipos de violências contra as mulheres são erotizadas, contribuindo para a banalização e a naturalização da violência contra as mulheres.This paper investigates the issue of misogyny in pornography, specifically how violence against women, incest, pedophilia and consent are represented in these materials. To this end, 20 videos from the PornHub “Most Watched” category were analyzed, using the theories and concepts of feminist theorists Andrea Dworkin, Catharine MacKinnon, Gail Dines and Raisa Ribeiro. We seek to analyze the aspects of pornography that make many feminists consider it to be a harmful product for women and for the promotion of gender equality. The analysis shows that pornography presents narratives in which various types of violence against women are eroticized, contributing to the trivialization and naturalization of violence against women

Abençoado seja o fruto : a representação da maternidade na série The Handmaid's Tale

Orientadora: Valquíria Michela John.Monografia (graduação) - Universidade Federal do Paraná, Setor de Artes, Comunicação e Design, Curso de Graduação em Comunicação Social, habilitação em Publicidade e Propaganda.Inclui referênciasO trabalho utiliza a análise de conteúdo para verificar como a série de ficção distópica The Handmaid’s Tale faz uma crítica à opressão patriarcal sofrida por mulheres na atualidade através da representação do papel social da mãe. Para isso, através dos estudos da autora americana E. Ann Kaplan foram criadas 8 categorias de análise sobre maternidade: dever biológico, justificativa para violência, dever sagrado, esperança, união feminina, força feminina, poder social e escolha. O objetivo, ao escolher esse recorte, é compreender como essa representação em uma produção audiovisual distópica consegue levantar questões pertinentes sobre a sociedade atual, como a autonomia corporal feminina, a violência sexual e a opressão religiosa, se tornando um símbolo de luta pelo direito das mulheres ao redor do mundo

Cassava, flour, tucupi and people: mutual becomings in a casa de farinha

Este artigo explora a relação humano-mandioca que se forma em uma casa de farinha localizada na comunidade quilombola do Espírito Santo do Itá (Pará). Embasado em um trabalho de campo etnográfico, este texto descreve a forma como a mandioca é transformada em farinha e tucupi, abordando o conhecimento multisensorial e corporificado que emerge nessas atividades. Inspirado na teoria semiótica material feminista, mais notavelmente no trabalho de Haraway sobre "espécies companheiras", sugiro que a mandioca e as pessoas emergem de forma relacional neste espaço. Tal devir mutual se desdobra de múltiplas formas, constituindo identidades coletivas, individuais e de gênero. Argumenta-se ainda que as performances identificadas são instáveis e são, portanto, afetadas pela introdução ou remoção de artefatos na casa de farinha

New insights on the molecular recognition of imidacloprid with Aplysia californica AChBP: a computational study

The binding of imidacloprid (IMI), the forerunner of neonicotinoid insecticides, with the acetylcholine binding protein (AChBP) from Aplysia californica, the established model for the extracellular domain of insects nicotinic acetylcholine receptors, has been studied with a two-layer ONIOM partition approach (M06-2X/6-311G(d):PM6). Our calculations allow delineating the contributions of the key residues of AChBP for IMI binding. In particular, the importance of Trp147 and Cys190-191, through weak CH...pi interactions and both van der Waals and hydrogen-bond (H-bond) interactions, respectively, are highlighted. Furthermore, H-bonds between hydroxyl groups of both Ser189 and Tyr55 and the IMI nitro group are pointed out. The participation of Ile118, whose main chain NH and carbonyl group are hydrogen-bonded with the IMI pyridinic nitrogen through a water molecule, is characterized. Our simulations also indicate the presence of a significant contribution of this residue through van der Waals interactions. The various trends obtained by the calculations of the pairwise interaction energies are confirmed through a complementary noncovalent interaction (NCI) analysis of selected IMI-AChBP amino acid pairs. Indeed, the contribution of a halogen-bond interaction between IMI and AChBP, recently proposed in the literature, is corroborated by our NCI analysis

Trajectory tracking and time delay management of 4-mecanum wheeled mobile robots (4-MWMR)

International audienceNowadays, wheeled mobile robots have a very important role in industrial applications, namely in transportation tasks thanks to their accuracy and rapidity. However, meeting obstacles while executing a mission can cause an important time delay, which is not appreciable in industry where production must be optimal. This paper deals with the time delay management, the trajectory generation and the tracking problem applied on four wheeled omnidirectional mobile robots. A strategy is proposed to minimize or compensate the time delay caused by obstacles. The approach is done by updating the reference trajectory. This update helps to track the trajectory in real time, a new control law based on the feedback linearization control theory is synthesized to track perfectly generated or updated trajectories

Detection & isolation of sensor and actuator additive faults in a 4-mecanum wheeled mobile robot (4-MWMR)

International audienceIn this paper, the fault detection and isolation problem regarding actuation and sensing of a 4-mecanum wheeled mobile robot (4-MWMR) is studied. The challenge with respect to the current state of the art lies in detecting and distinguishing wheel sensor from wheel actuator additive faults for this kind of robots. An approach based on generating residuals is proposed. Sensor faults isolation is based on simply analyzing residual signatures which are different under each sensor fault. Due to omni-move properties, actuator faults are, however, more difficult to be isolated. More residual characteristics must be taken into consideration to achieve the isolation