Discutindo relações de gênero

Anais do II Seminário Seminário Estadual PIBID do Paraná: tecendo saberes / organizado por Dulcyene Maria Ribeiro e Catarina Costa Fernandes — Foz do Iguaçu: Unioeste; Unila, 2014Este trabalho tem por objetivo apresentar os resultados parciais das intervenções do PIBID português/francês. A temática engloba as discussões de gênero na escola, orientados pelos documentos oficias (Diretrizes curriculares da educação básica e Parâmetros Curriculares nacionais). O projeto desenvolve-se em uma turma de 7o ano, no colégio Arnaldo Jansen. A fim de realizar as discussões, os acadêmicos pibidianos exploram inicialmente o ponto de vista dos alunos e após obtê-los, inicia-se uma séria de atividades com o tema, realizadas durante as intervenções do projeto na sala de aula. Cabe aos acadêmicos pibidianos construírem pontes que relacionem o ensino da língua portuguesa com a língua francesa. Temos por objetivo a formação de opinião crítica do aluno da educação fundamental, para que ele seja apto a extrapolar as noções estereotipadas de gênero e com isso possa questionar as normas ditadas pela sociedade, além de superar qualquer noção preconceituosa dos gênero

Design and characterization of programmable DNA nanotubes

DNA self-assembly provides a programmable bottom-up approach for the synthesis of complex structures from nanoscale components. Although nanotubes are a fundamental form encountered in tile-based DNA self-assembly, the factors governing tube structure remain poorly understood. Here we report and characterize a new type of nanotube made from DNA double-crossover molecules (DAE-E tiles). Unmodified tubes range from 7 to 20 nm in diameter (4 to 10 tiles in circumference), grow as long as 50 μm with a persistence length of ~4 μm, and can be programmed to display a variety of patterns. A survey of modifications (1) confirms the importance of sticky-end stacking, (2) confirms the identity of the inside and outside faces of the tubes, and (3) identifies features of the tiles that profoundly affect the size and morphology of the tubes. Supported by these results, nanotube structure is explained by a simple model based on the geometry and energetics of B-form DNA

Precise wide range heatmeters for 1.5 K up to 80 K

Two heatmeters were designed at CERN for applications below 20 K with the option to work also at temperatures up to 80 K. The new calibration principle and design permits the construction of wide rang e heatmeters with precision in the range of milliwatts. The calibration function takes into account the temperature dependence of the thermal conductivity of the heatmeter material. The heat flow meas urement is, therefore, independent of the base temperature, i.e. it is also independent on the temperature drop across thermal contact between heatmeter and the cold source. The simple calibration fun ction makes the heatmeter a user-friendly portable diagnostic device. It is possible to quantify parasitic heat flow without a previous calibration, or to calibrate the heatmeter during a measurement with a specimen

Stochastic Cooling Overview

The status of stochastic cooling and developments over the years are reviewed with reference to much of the original work. Both theoretical and technological subjects are considered.Comment: 10 pages. Includes an extensive bibliograph

Deuteron photo-disintegration with polarised photons in the energy range 30 - 50 MeV

The reaction d(\vec\gamma,np) has been studied using the tagged and polarised LADON gamma ray beam at an energy 30 - 50 MeV to investigate the existence of narrow dibaryonic resonances recently suggested from the experimental measurements in a different laboratory. The beam was obtained by Compton back-scattering of laser light on the electrons of the storage ring ADONE. Photo-neutron yields were measured at five neutron angle \vartheta_n = 22, 55.5, 90, 125 and 157 degrees in the center of mass system.Our results do not support the existence of such resonances.Comment: 16 pages, Latex, 22 figures, 1 table. Nucl. Phys. A to appea

Third Coast Housing Solutions: The Case for Bringing YIMBY Legal Activist Strategies to Chicago

An insufficient supply of suitable housing stock is the root cause of issues like homelessness, overcrowding, and a cost burden on renters throughout the United States. A loose collective of activists and stakeholders comprise the YIMBY movement, an acronym for Yes In My Backyard. YIMBY advocates advance the perspective that additional housing stock is a necessary stratagem to improve housing availability and affordability, and they have used litigation as a tool towards developing new and diverse housing. This Comment examines the strategies currently used by legal activists in California, where impact litigation on this issue has been most prevalent. It also investigates whether these strategies could serve to improve the housing landscape in Chicago and, if so, how they could be most effectively adapted to the unique political and legal circumstances of the Chicago region

Modeling Micro-Porous Surfaces for Secondary Electron Emission Control to Suppress Multipactor

This work seeks to understand how the topography of a surface can be engineered to control secondary electron emission (SEE) for multipactor suppression. Two unique, semi-empirical models for the secondary electron yield (SEY) of a micro-porous surface are derived and compared. The first model is based on a two-dimensional (2D) pore geometry. The second model is based on a three-dimensional (3D) pore geometry. The SEY of both models is shown to depend on two categories of surface parameters: chemistry and topography. An important parameter in these models is the probability of electron emissions to escape the surface pores. This probability is shown by both models to depend exclusively on the aspect ratio of the pore (the ratio of the pore height to the pore diameter). The increased accuracy of the 3D model (compared to the 2D model) results in lower electron escape probabilities with the greatest reductions occurring for aspect ratios less than two. In order to validate these models, a variety of micro-porous gold surfaces were designed and fabricated using photolithography and electroplating processes. The use of an additive metal-deposition process (instead of the more commonly used subtractive metal-etch process) provided geometrically ideal pores which were necessary to accurately assess the 2D and 3D models. Comparison of the experimentally measured SEY data with model predictions from both the 2D and 3D models illustrates the improved accuracy of the 3D model. For a micro-porous gold surface consisting of pores with aspect ratios of two and a 50% pore density, the 3D model predicts that the maximum total SEY will be one. This provides optimal engineered surface design objectives to pursue for multipactor suppression using gold surfaces