Um olhar sobre a lei Maria da Penha no Paraná: avanços e desafios

This study aims to analyze the process of implementation of Maria da Penha Law in Paraná from the perception of persons directly involved in combating violence against women in that state. To achieve this goal, the implementation in Curitiba was taken as the main reference, due to its status as capital, being the headquarter of the political powers and the place where are some feminist social movements. We have chosen qualitative approach of interpretative nature as research methodology, because it is a method that allows the analysis of the responses and as a data collection technique. We also have chosen the individual semi-structured interview as interview mode, because it gives greater freedom to the interviewee to discuss the matter, but it is delimited to the study objectives. The research included nine persons, including members of the Judiciary and Public Ministry, public servants and activists. The importance of the study stems from the relevance of the numbers of violence against women in Brazil, and more specifically by the significant occurrence of this kind of acts in the state of Paraná, which currently occupies the 3rd place in the ranking for the most violent states. The paper also discusses gender relations by understanding that violence against women is the result of an asymmetrical power relationship between men and women; human rights because violence is a blatant disregard of women's human rights; on public policies and technologies to confront this form of violence. Among the policies, the Maria da Penha Law is highlighted as one of the most striking examples of public policy for combating violence against women. The research found out which was the participation of Paraná in the discussion and implementation of Maria da Penha Law, identifying relevant facts and people and also what was the repercussion obtained by this law. As for the implementation in Paraná, it was possible to determine progresses, difficulties and challenges of the process. The greatest advances obtained so far are the facilities of: Court of Domestic and Family Violence against Women in Curitiba, Maria da Penha Patrol and Women's Special City Office of Curitiba. As for the difficulties, they are related, among others things, to the physical structure, training of agents, political will, and even cultural issues, which are directly linked to gender issues. Thus it was found that the law is implemented in the state, but there are still several challenges to be achieved, which consist, mainly, of the structure increment for combating violence; awareness and change of mentality of public officials; training of service agents and a greater social participation in combating violence. We concluded that the need for change in gender relations, which is an educational and social evolutionary process and therefore time consuming, is also a challenge.

Análise e proposição de estratégias de estimação e controle de velocidade para motores de indução trifásicos

This study presents a proposal of speed servomechanisms without the use of mechanical sensors (sensorless) using induction motors. A comparison is performed and propose techniques for pet rotor speed, analyzing performance in different conditions of speed and load. For the determination of control technique, initially, is performed an analysis of the technical literature of the main control and speed estimation used, with their characteristics and limitations. The proposed technique for servo sensorless speed induction motor uses indirect field-oriented control (IFOC), composed of four controllers of the proportional-integral type (PI): rotor flux controller, speed controller and current controllers in the direct and quadrature shaft. As the main focus of the work is in the speed control loop was implemented in Matlab the recursive least squares algorithm (RLS) for identification of mechanical parameters, such as moment of inertia and friction coefficient. Thus, the speed of outer loop controller gains can be self adjusted to compensate for any changes in the mechanical parameters. For speed estimation techniques are analyzed: MRAS by rotóricos fluxes MRAS by counter EMF, MRAS by instantaneous reactive power, slip, locked loop phase (PLL) and sliding mode. A proposition of estimation in sliding mode based on speed, which is performed a change in rotor flux observer structure is displayed. To evaluate the techniques are performed theoretical analyzes in Matlab simulation environment and experimental platform in electrical machinery drives. The DSP TMS320F28069 was used for experimental implementation of speed estimation techniques and check the performance of the same in a wide speed range, including load insertion. From this analysis is carried out to implement closed-loop control of sensorless speed IFOC structure. The results demonstrated the real possibility of replacing mechanical sensors for estimation techniques proposed and analyzed. Among these, the estimator based on PLL demonstrated the best performance in various conditions, while the technique based on sliding mode has good capacity estimation in steady state and robustness to parametric variations.

Desenvolvimento e caracterização de micropartículas de amido reticuladas com agente fosfatado e avaliação da adsorção do azul de metileno

Starch has properties that make it one of the most studied biopolymers today. It is biodegradable, biocompatible, stable and non-toxic. This work has synthesis of starch and tapioca microparticles, through chemical modification by crosslinking with sodium tripolyphosphate agent in concentrations 7.5 and 15% (m / m). The amylose content was measured for starch and commercial cassava starch at 21.8% and 28.6%, respectively. According to the solubility index, processing in basic medium does not change the solubility of the material, but the addition of crosslinking agent increases this index, which changed from 12.8% for the control unprocessed, to 22.4% for the A5R15 sample. Soluble starch-based materials had a significant increase in the crosslinking density by increasing the concentration of crosslinker, from 1.4 in A5R7,5 sample, to 1.9 in A5R15. The cassava starch-based materials exhibited an opposite behavior: to increase the concentration of crosslinker crosslinking density decreased significantly in F5R7.5 from 2.9, to 1.9 in F5R15 sample. The point of zero charge (PZC) shows that below pH 4 the surface is positively charged. The surface area data is between 3,04 and 1,15 m2.g-1. The pore volume between 2.94 and 1.33 cm3.g-1 and pore size around 1.5 nm. The SEM indicates uneven distribution of microparticles, which are smooth, with no ridges. The maximum adsorption capacity of the materials were tested at pH 7.7 and for A5R15 and CA sample, at pH 2, 5, 6 and 9. It is noted that the processing in basic medium reduces the adsorption capacity of CA and CF in respect fo A and F. The adsorption in A5R15 sample has great dependency on the pH, reaching a value of 587 μg.g-1 in pH 7.7. The samples A5R15 and F5R7,5 adsorbed similar amounts, according to the statistical analysis, and significantly higher than their respective controls and showed lower desorption, indicating that the modification process was effective to control the release of methylene blue. The infrared spectra not show the characteristic bands of the phosphate bonds to the material formed, however, developments in hydroxyl characteristic band suggest modification in the way this group was linked after the reaction. After adsorption, the infrared spectra show different format in the band of hydroxyl. PCA analysis shows that the greatest changes observed in the IR spectra are observed in the region of 3500 cm-1. Thermal analysis showed three thermal events related to dehydration and material degradation. It is observed that the processing increases the temperature to the first mass loss, fixed at 12%, but not observed increased stability due to the presence of crosslinker or process.