Processamento sonoquímico de materiais mesoestruturados de óxido de zinco dopados com terras-raras

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A indeterminação pragmática e semântica do sujeito

Pós-graduação em Estudos Linguísticos - IBILCE

Treatment of polycarbonate by dielectric barrier discharge (DBD) at atmospheric pressure

Generally most plastic materials are intrinsically hydrophobic, low surface energy materials, and thus do not adhere well to other substances. Surface treatment of polymers by discharge plasmas is of great and increasing industrial application because it can uniformly modify the surface of sample without changing the material bulk properties and is environmentally friendly. The plasma processes that can be conducted under ambient pressure and temperature conditions have attracted special attention because of their easy implementation in industrial processing. Present work deals with surface modification of polycarbonate (PC) by a dielectric barrier discharge (DBD) at atmospheric pressure. The treatment was performed in a parallel plate reactor driven by a 60Hz power supply. The DBD plasmas at atmospheric pressure were generated in air and nitrogen. Material characterization was carried out by contact angle measurements, and X-ray photoelectron spectroscopy (XPS). The surface energy of the polymer surface was calculated from contact angle data by Owens-Wendt method using distilled water and diiodomethane as test liquids. The plasma-induced chemical modifications are associated with incorporation of polar oxygen and nitrogen containing groups on the polymer surface. Due to these surface modifications the DBD-treated polymers become more hydrophilic. Aging behavior of the treated samples revealed that the polymer surfaces were prone to hydrophobic recovery although they did not completely recover their original wetting properties.

Elucidating Redox-Level Dispersion and Local Dielectric Effects within Electroactive Molecular Films

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

The plant ionome revisited by the nutrient balance concept

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Functional and Topological Studies with Trp-Containing Analogs of the Peptide StII(1-30) Derived From the N-Terminus of the Pore Forming Toxin Sticholysin II: Contribution to Understand its Orientation in Membrane

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Selective DMSO-induced conformational changes in proteins from Raman optical activity

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Safety assessment of oral photodynamic therapy in rats

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Scattering and bound states of fermions in a mixed vector-scalar smooth step potential

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

O egocentrismo infantil na perspectiva de Piaget e representações de professoras

This text comes up a clipping from an applied research, qualitative approach, which sought to understand both the egocentric second Piaget, through a literature search, furthermore, from a study that was conducted with teachers from kindergarten and the first years of elementary school, we sought to delineate the representations of such teachers in this regard and its proximity to the theory in question. Therefore, the trajectory traveled consisted of explaining aspects the Vygotsky's critique to Piaget, with respect to egocentric thought; subsequently show how as Piaget responded to criticism of Vygotsky, and expound upon the egocentric thought present in your perspective. Were addressed, we sought to delineate the representations of fifteen educators about the phenomenon of egocentrism in children and its proximity with the theory of Piaget. It might thus as regards the literature, and bring the importance of recognizing and understanding the thought egocentric in Piaget, as a phenomenon is intrinsically linked to the development of the child and that we can approach your understanding. For representations of teachers, approached more subjectively common sense than the concepts found in psychological theory focused. Thus, this study allows us to understand the limits and scope of training courses for teachers, with regard to the dimension in focus.

Formação continuada de professores na educação inclusiva: a motivação em questão

Since 1990, in Brazil, the paradigm of inclusive education has influenced public policies and educational systems. Continuing education courses for teachers are spreading with the intention of preparing them to face the challenge of working with students with disabilities. But what factor has motivated teachers to participate in these courses? This study sought to answer this question by identifying and mapping the aspects that led to 105 regular education teachers from municipal schools in São Paulo to participate during the year 2010/2011, the third edition of the specialization course called "Teacher Education in Special Education." Data was collected through a questionnaire applied to teachers who attend the course. The results revealed that motivation is intrinsically related to the characteristics of the teachers’ age and where they stand in the cycle of teaching career, as well as aspects related to professional activities. Moreover, from this research were pointed reflections on the importance of training teachers for the improvement of the educational system in order to effectively meet the principles of inclusive education, as suggested by the legislation in our country.

Egocentric speech in the works of Vygotsky and Piaget: educational implications and representations by teachers

This paper presents an applied qualitative and quantitative study and seeks to understand egocentric speech according to Vygotsky and Piaget and, through a literature review, the educational implications of Vygotsky and Piaget’s ideas. Additionally, the representations of these ideas by fifteen teachers of basic education are investigated. It is important to understand egocentric speech in Vygotsky and Piaget. Despite the differences in how they conceive its nature, functions and implications, for both, egocentric speech is intrinsically linked to and facilitates our understanding of child development. Regarding the representation of teachers who criticized children who used egocentric language, when teachers established any negative consequences of such language, they attributed it to the affective and moral aspects as well as to cognition. However, their approach was more practically oriented than those found in the psychological theories addressed. Therefore, this study aids in understanding the limits and scope of teacher-training courses.

Campos espinoriais ELKO

Pós-graduação em Física - FEG

Increasing Doxycycline Hyclate Photostability by Complexation with beta-Cyclodextrin

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo da fotoisomerização em filmes de polímero triacrilato dopado com azocorante disperse red 1

Triacrylate resins are widely used to fabricate 3D microstructures, photonic crystals and optical devices. These resins can be doped with photosensitive materials like Disperse Red 1 (DR1), an Azo dye that changes its molecular configuration from trans to cis (photoisomerisation) with variations in their optical absorption spectrum when irradiated with ultraviolet or visible light. The reversibility of this process is thermally activated and occurs when the molecule remains at dark. In this work was prepared a 1:1 mixture of ethoxylated-6-trimethylolpropane (SR499) and tris-2-hydroxyethyl-isocyanurate (SR368) triacrylate resins, plus photoinitiator Lucirin TPOL, forming a UV curable polymeric matrix doped with DR1. Thin films were deposited onto glass slides by spin-coating technique. The films showed photochromic effect when illuminated with a low power diode laser (450 nm and 50mW/cm2). This effect is reversible after sample is left in dark. Thermochromic effect was evaluated by optical absorption measurements in the range of 40 to 140oC, heating the samples in-situ