The one dimensional Kondo lattice model at partial band filling

The Kondo lattice model introduced in 1977 describes a lattice of localized magnetic moments interacting with a sea of conduction electrons. It is one of the most important canonical models in the study of a class of rare earth compounds, called heavy fermion systems, and as such has been studied intensively by a wide variety of techniques for more than a quarter of a century. This review focuses on the one dimensional case at partial band filling, in which the number of conduction electrons is less than the number of localized moments. The theoretical understanding, based on the bosonized solution, of the conventional Kondo lattice model is presented in great detail. This review divides naturally into two parts, the first relating to the description of the formalism, and the second to its application. After an all-inclusive description of the bosonization technique, the bosonized form of the Kondo lattice hamiltonian is constructed in detail. Next the double-exchange ordering, Kondo singlet formation, the RKKY interaction and spin polaron formation are described comprehensively. An in-depth analysis of the phase diagram follows, with special emphasis on the destruction of the ferromagnetic phase by spin-flip disorder scattering, and of recent numerical results. The results are shown to hold for both antiferromagnetic and ferromagnetic Kondo lattice. The general exposition is pedagogic in tone.Comment: Review, 258 pages, 19 figure

COMPETENCY-BASED TRAINING IN NURSING: LIMITS AND POSSIBILITIES

Objective To analyze the possibilities and limits of competency-based training in nursing. Method An integrative review of the literature on the subject was carried out, and an analysis was made of the results of a survey evaluating a nursing course based on areas of competency. A dialog was then established between the review and the results of the research. Results On the question of which theoretical type of competency the articles from the literature relate to, there is a predominance of the constructivist perspective, followed by the functionalist approach and the dialog-based approach. In the dialog between the literature and the research, limits and possibilities were observed in the development of a training by areas of competency. Conclusion The dialog-based approach to competency is the proposition that most approximates to the profile defined by the National Curriculum Guidelines for training in nursing, and this was also identified in the evaluation survey that was studied. However, it is found that there are aspects on better work is needed, such as: partnership between school and the workplace, the role of the teacher, the role of the student, and the process of evaluation

Tecnologia na terapia intensiva e suas influências nas ações do enfermeiro

Objetivou-se identificar as representações sociais de enfermeiros sobre a tecnologia aplicada em cuidados intensivos, e relacioná-las aos seus modos de agir no cuidado do paciente. Pesquisa qualitativa, cujo referencial teórico-metodológico foi o das representações sociais. Realizou-se entrevistas com 24 enfermeiros, observação sistemática e análise de conteúdo temática. Os resultados se organizaram em três categorias sobre o desconhecimento da linguagem tecnológica, estratégias de aproximação, seu domínio e sua aplicação. O saber/conhecimento necessário para o manuseio da tecnologia, e o tempo de experiência do seu manejo orientam as representações sociais dos enfermeiros, incidindo nas suas ações de cuidado. Conclui-se que a política de contratação de pessoal para trabalhar em cenário de terapia intensiva deve considerar as experiências e a formação especializada dos enfermeiros

Projeto Político Pedagógico: concepção, construção e avaliação na enfermagem Proyecto político pedagógico: concepción, construcción y evaluación en enfermería Political pedagogical project: conception, construction and evaluation in nursing

A formação de enfermeiros e sua articulação com o mercado de trabalho pautam-se na premissa de que a qualidade do serviço de Enfermagem relaciona-se à formação do profissional como sujeito reflexivo. Este estudo teve como objetivo geral compreender a formação do enfermeiro com suporte nos atuais projetos políticos pedagógicos (PPPs) dos cursos de Enfermagem e, especificamente, verificar junto às coordenadoras e/ou ex-coordenadoras destes cursos a concepção, construção e avaliação do PPP e a inserção do sujeito reflexivo como proposta de formação. Foram analisados os PPPs dos Cursos de Enfermagem das Universidades Estadual (UECE) e Federal do Ceará (UFC), e realizadas entrevistas com nove coordenadoras e/ou ex-coordenadoras dos referidos cursos. Os dados revelaram que o PPP é considerado elemento norteador da ação educacional e que sua construção parte de iniciativas coletivas, mas não permanentes. Foram destacadas a preocupação com a formação crítico-reflexiva do enfermeiro, bem como relativa à avaliação do PPP.<br>La formación de enfermeros y su inserción en el mercado de trabajo se basan en la premisa de que la calidad del servicio de Enfermería se relaciona con la formación del profesional como sujeto reflexivo. Este estudio tuvo como objetivo general comprender la formación del enfermero con respaldo en los actuales proyectos políticos pedagógicos (PPPs) de los cursos de Enfermería y, específicamente, verificar junto con las coordinadoras y/o ex coordinadoras de estos cursos la concepción, construcción y evaluación del PPP y la inserción del sujeto reflexivo como propuesta de formación de tales PPPs. Fueron analizados los PPPs de los Cursos de Enfermería de las Universidades Estatal (UECE) y Federal de Ceará (UFC), y realizadas entrevistas con nueve coordinadoras y/o ex coordinadoras de los referidos cursos. Los datos revelaron que el PPP es considerado un elemento orientador de la acción educativa y que su construcción parte de iniciativas colectivas, pero no permanentes. Fue relevante la preocupación por la formación crítico-reflexiva del enfermero, así como relativa a la evaluación del PPP.<br>Nursing education and nurses' articulation with the working market are guided on the premise that the quality of nursing service is related to training workers to be reflexive subjects. The main object of the study was to understand nursing education based on the current political pedagogical projects (PPPs) of nursing courses and, more specifically, to verify with coordinators and / or former-coordinators of the referred nursing courses the conception, construction and evaluation of the PPPs and the inclusion of the reflective subject as a proposition when developing the PPPs. An analysis was performed on the PPP of nursing courses of the State (UECE) and Federal (UFC) Universities of Ceará, and interviews were performed with nine coordinators and / or former-coordinators of those courses. Data showed that the PPP is considered a guiding element of educational activities and that its construction results from collective but not permanent initiatives. There is much concern about the critical-reflexive character of nursing education, as well as the evaluation of the PPP