O PROEJA ensino médio no ifrn, campus Caicó: causas da desistência e motivos da permanência

This dissertation deals about the theme of National Integration Program of the Professional Education to the Basic Education in the form of Youth and Adults Education - PROEJA, which was developed at the Federal Institute of Education Science and Technology of Rio Grande do Norte - IFRN - Campus Caicó. It aims to analyze the causes of the abandonment and the reasons for the permanence of students within the mentioned program. To substantiate this research, we used methodologically, some procedures such as bibliographical research, documentary analysis, semi-structured interviews and focus group. To analyze the data, we discussed the contradiction that involves duality and educational compensation based in the struggles and achievements of rights at the core of public policies for high schools, for vocational education and the education of youth and adults in the 2000s. We analyze the integrated high school under PROEJA, having as reference the conception of the total human formation; the inseparability of the primary education system and vocational education and the integration of knowledge and expertise as a whole, discussing the specificities of the modality EJA, discussing the causes of abandonment and the reasons for the permanence of the students of education for youth and adults (EJA) in the primary education system. As for the results, we found that although the PROEJA be a program that aims to provide a complete human formation to contribute to the full citizenship of their graduate members, what is announced in the document that guides its creation has not been materialized in Caicó Campus. The curriculum of the course was not designed for the students of EJA, nor teachers have had an adequate training to work with these specific individuals, and its specificities of being workers with differentiated learning times have not been considered. In addition, the courses are predominantly of instrumentalist characteristics. This indicates that the material and institutional conditions to achieve the promised total and complete training have not being fully materialized at the researched school. Associated with the difficulties concerning the intra-school and extra-school conditions, personal and socioeconomic conditions which are related to the obligation to work that implies in limitations to balance work, school and family, they influenced in the interruption of the school trajectory of these subjects. Through research, we confirmed that the motives of students who remain have to do also with intraescolares conditions the quality of education (qualification of technical staff and teachers) involved in the educational process, as well as socioeconomic and personal issues represented by the support of colleagues and family.Then it is concluded that the causes of abandonment and the reasons of the permanence are of institutional, socioeconomic and personal origins. Finally, it is observed that capitalist society demands as much as possible high levels of educated workers, and at the same time makes difficult the access to that education for much of the population, and it is not randomly. The objects of that exclusion are the popular worker classes and their children

Undersampled Critical Branching Processes on Small-World and Random Networks Fail to Reproduce the Statistics of Spike Avalanches

The power-law size distributions obtained experimentally for neuronal avalanches are an important evidence of criticality in the brain. This evidence is supported by the fact that a critical branching process exhibits the same exponent t~3=2. Models at criticality have been employed to mimic avalanche propagation and explain the statistics observed experimentally. However, a crucial aspect of neuronal recordings has been almost completely neglected in the models: undersampling. While in a typical multielectrode array hundreds of neurons are recorded, in the same area of neuronal tissue tens of thousands of neurons can be found. Here we investigate the consequences of undersampling in models with three different topologies (two-dimensional, small-world and random network) and three different dynamical regimes (subcritical, critical and supercritical). We found that undersampling modifies avalanche size distributions, extinguishing the power laws observed in critical systems. Distributions from subcritical systems are also modified, but the shape of the undersampled distributions is more similar to that of a fully sampled system. Undersampled supercritical systems can recover the general characteristics of the fully sampled version, provided that enough neurons are measured. Undersampling in two-dimensional and small-world networks leads to similar effects, while the random network is insensitive to sampling density due to the lack of a well-defined neighborhood. We conjecture that neuronal avalanches recorded from local field potentials avoid undersampling effects due to the nature of this signal, but the same does not hold for spike avalanches. We conclude that undersampled branching-process-like models in these topologies fail to reproduce the statistics of spike avalanches.

Características dos programas de residência médica em cardiologia do estado do Rio Grande do Norte

The present study had as goal to evaluate Rio Grande do Norte state’s medical residency programs (MRP) in Cardiology. It’s a descriptive study, including a documental analysis of the program’s accreditation processes (PAP) of cardiology’s medical residency in Rio Grande do Norte state in 2014 and the analysis of the resident’s perception about his professional education as a specialist in Cardiology. Beside the documental analysis of the PAPs, it was applied a semi-structured questionnaire with closed questions Likert style and open questions to all the current and former residents of the MRPs analyzed. Two MRPs in Cardiology were identified in Rio Grande do Norte state, one hosted in a public institution and the other in a private institution. The documental analysis showed a greater amount of preceptors with a good level of ownership on the public institution in comparison with the private one, as well as a bigger number of publications, participation in congresses and in book’s publications. The private institution presents a better Urgency’s infrastructure, with emergency room and cardiologic ICU. It IS clear that the residents are aware of how a good residency must work, as well as the strengths and fragilities of their own residences. Most of Onofre Lopes Universitary Hospital’s residents point out as a strength the organization, participation and quality of the preceptors, practice activities and scientific debates, great amount of patients and the visits and debates with the preceptors on the sickrooms. As the greatest fragilities, they emphasize the lack of a urgency service of their own and a specialized ICU. In Coração Hospital of Natal (HCor), it is listed as weak points the theoretic scheduling and the few ambulatory practices. As positive aspects, they report the preceptors, the agility on the execution of exams, a good number of serious patients and procedures. In both residences, it is seen a certain difficulty in accepting the important and mandatory items imposed by the rules of the Medical Residences’ National Committee, such as: biostatistics, bioethics, medical ethic, epidemiology and research methodology. Besides that, the residents recognize that both hospitals have a good infrastructure and technological support, especially in imaging methods. The evaluation of PRMCs identifies the strengths of each program and the aspects to be improved in both programs. It also allowed the observation of difficulties in accepting some regulations contained in the CNRM resolution by the resident, such as participation in activities such as biostatistics, epidemiology and research methodology as well as the improvement needs of specific technical training, such as in emergency care. Thus, our results make possible to develop strategies for continued improvement of PRMC in RN state. In addition, it enabled the preparation of the resident’s manual in cardiology, containing even a breakdown of resident evaluation system, which could serve as a model for other residency programs.

Undersampled Critical Branching Processes on Small-World and Random Networks Fail to Reproduce the Statistics of Spike Avalanches

The power-law size distributions obtained experimentally for neuronal avalanches are an important evidence of criticality in the brain. This evidence is supported by the fact that a critical branching process exhibits the same exponent t~3=2. Models at criticality have been employed to mimic avalanche propagation and explain the statistics observed experimentally. However, a crucial aspect of neuronal recordings has been almost completely neglected in the models: undersampling. While in a typical multielectrode array hundreds of neurons are recorded, in the same area of neuronal tissue tens of thousands of neurons can be found. Here we investigate the consequences of undersampling in models with three different topologies (two-dimensional, small-world and random network) and three different dynamical regimes (subcritical, critical and supercritical). We found that undersampling modifies avalanche size distributions, extinguishing the power laws observed in critical systems. Distributions from subcritical systems are also modified, but the shape of the undersampled distributions is more similar to that of a fully sampled system. Undersampled supercritical systems can recover the general characteristics of the fully sampled version, provided that enough neurons are measured. Undersampling in two-dimensional and small-world networks leads to similar effects, while the random network is insensitive to sampling density due to the lack of a well-defined neighborhood. We conjecture that neuronal avalanches recorded from local field potentials avoid undersampling effects due to the nature of this signal, but the same does not hold for spike avalanches. We conclude that undersampled branching-process-like models in these topologies fail to reproduce the statistics of spike avalanches.