Relational time for systems of oscillators

Using an elementary example based on two simple harmonic oscillators, we show how a relational time may be defined that leads to an approximate Schrodinger dynamics for subsystems, with corrections leading to an intrinsic decoherence in the energy eigenstates of the subsystem.

Toy model for a relational formulation of quantum theory

In the absence of an external frame of reference-i.e., in background independent theories such as general relativity-physical degrees of freedom must describe relations between systems. Using a simple model, we investigate how such a relational quantum theory naturally arises by promoting reference systems to the status of dynamical entities. Our goal is twofold. First, we demonstrate using elementary quantum theory how any quantum mechanical experiment admits a purely relational description at a fundamental. Second, we describe how the original non-relational theory approximately emerges from the fully relational theory when reference systems become semi-classical. Our technique is motivated by a Bayesian approach to quantum mechanics, and relies on the noiseless subsystem method of quantum information science used to protect quantum states against undesired noise. The relational theory naturally predicts a fundamental decoherence mechanism, so an arrow of time emerges from a time-symmetric theory. Moreover, our model circumvents the problem of the collapse of the wave packet as the probability interpretation is only ever applied to diagonal density operators. Finally, the physical states of the relational theory can be described in terms of spin networks introduced by Penrose as a combinatorial description of geometry, and widely studied in the loop formulation of quantum gravity. Thus, our simple bottom-up approach (starting from the semiclassical limit to derive the fully relational quantum theory) may offer interesting insights on the low energy limit of quantum gravity.

Semiologia neurológica numa população de escolares da primeira série do ensino fundamental

We evaluated children in the first grade of a elementary school using neurological examination. With no previous knowledgement of their educational performance, were invited all children attending five classes of the first grade of an elementary public school chosen randomly, in Itatiba / Sao Paulo / Brazil, whose parents assigned a Commitment Term for participation in this research. Children who missed three evaluations in different days or whose parents did not assigned the Commitment Term were excluded. The Traditional Neurological Examination (ENT) (Lefevre, 1972) was applied. It was considered for normal the measurement of the skull circumference, proposed by Diament & Rodrigues (1976), and the application of all ENT items. The data were stored in a database of the Epi6 Program (Epidemiologic Information), and analyzed by percentage calculation and by the c2 test. The significance level was 0.05. Children evaluated were 124. The ENT results were normal in 87 (70.16%) and altered in 37 (29.83%). Among the alterations, there were observed: light tremor, light muscular hypotonia, speech acquisition delay, macrocephaly, microcephaly, hyperactivity, cranial nerve syndrome, central facial paralysis. One child presented corticospinal tract impairment syndrome of the distal lower extremities.

A construção de uma escala de estratégias de aprendizagem para alunos do ensino fundamental

Although learning strategies are important tools for schooling process, there is a lack of national instruments to evaluate their knowledge by brazilian students. Therefore, the objectives of this paper are to describe the steps necessary for the construction of a scale to evaluate the learning strategies for basic education students and to present the preliminary study of its psychometric properties. It is also discussed the utility of this instrument for diagnosis, intervention and prevention in school and educational psychology.

As dimensões da linguagem em livros didáticos de inglês para o Ensino Fundamental I

This article aims at discussing and articulating views of language under sociocultural, dialogic and discourse perspectives, in order to present a theoretical framework as far as the analysis of textbooks of English as a foreign language for the Brazilian Ensino Fundamental I is concerned. Due to the limited number of studies in this field, to the still considerably structural approach of the English language teaching and learning in our country nowadays and to the important mediation role textbooks play in language education, we believe our work can contribute positively to the construction of critical and multiple literacies, which, in turn, can support an active and transformative educacional process in the present times.

A Educação Física no contexto da nova estrutura do ensino fundamental : uma proposta para o primeiro ano

Universidade Estadual de Campinas . Faculdade de Educação Física

Metodos de avaliação em Educação Fisica no ensino fundamental

Universidade Estadual de Campinas . Faculdade de Educação Física

Atividade fisica e saude : estudo do conhecimento de professores de educação fisica do ensino fundamental atraves da educação a distancia

Universidade Estadual de Campinas . Faculdade de Educação Física

A utilização de apoio bibliografico como recurso metodologico para o ensino da Educação Fisica nos niveis fundamental e medio de escolarização na cidade de Catalão-GO

Universidade Estadual de Campinas . Faculdade de Educação Física

Estudo da postura corporal e aspectos nutricionais em escolares do ensino fundamental da rede publica

Universidade Estadual de Campinas. Faculdade de Educação Física

Avaliação do crescimento físico e maturação somática de escolares da rede de ensino fundamental de Campinas, SP

Universidade Estadual de Campinas . Faculdade de Educação Física

Bem-vinda à escola : o ingresso da criança no primeiro ano do ensino fundamental sob o olhar docente e a perspectiva do brincar

Universidade Estadual de Campinas . Faculdade de Educação Física

Vivencias corporais na escola : uma experiencia com professores de educação infantil e das quatro series iniciais do ensino fundamental

Universidade Estadual de Campinas . Faculdade de Educação Física

Educação fisica no ensino fundamental : uma experiencia com base na educação fisica plural

Universidade Estadual de Campinas . Faculdade de Educação Física

Habilidade motora fundamental : analise comparativa entre situação laboratorial e "natural"

Universidade Estadual de Campinas. Faculdade de Educação Física