Variação da atividade locomotora do ermitão Clibanarius Vittatus (BOSC, 1802) em relação à dessecação, na praia dos pescadores, em São Vicente (SP), Brasil

The crustaceans activity of move about could alter in function of the environmental conditions. In the present study, this activity of the hermit crab Clibanarius vittatus was studied in dry and submerged areas of the intertidal region of Pescadores Beach in Sao Vicente (SP), Brazil. In both areas 110 animals (86 of dry and 24 of submerged area) were analyzed and C. vittatus show more activity in the submerged area than in the dry one. The low activity of locomotion presented when exposed to the air, can be due by the stress caused in function of the high temperature and desiccation.

Políticas públicas em educação ambiental no contexto da Conferência Nacional de Educação - CONAE 2010

n this paper I pose some questions that I systematized after taking part in a colloquium proposed by the National Conference on Education (CONAE 2010) to discuss the theme “Environmental Education and Curriculum Contextualization”. Regarding public environmental education policies, I try to indicate some perspectives that are both coherent with what Brazilian educators and environmentalists have been proposing and considered necessary for the consolidation of an Articulated National Education System. I present a synthesis of the environmental education proposals systematized in the CONAE Reference Document, which was designed as a guide to state and local conferences. I make an effort to carry out a preliminary analysis of both the process and the content of the public environmental education proposals systematized in the Essential Documents (Volumes I and II), Thematic Plenary Meeting Documents, and Final Document. Furthermore, I try to present a short synthesis of the prevailing tendencies of educational policies in Brazil in the last decades, pointing out the meaning and need of social activism for the construction of public policies for education, in general, and for environmental education, specifically.

Meio ambiente no ensino de Ciências: análise de livros didáticos para os anos finais do ensino fundamental

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Educação ambiental e formação de professores de biologia no município de piracicaba/speducação ambiental e formação de professores de biologia no município de Piracicaba/SP

Early this century, several crises are intertwined and the environmental crisis is the most global of them all. In this context, emerged as an environmental education learn to overcome the crisis. This article aims to discuss the ideas of biology teachers in the city of Piracicaba-SP on Environmental Education and from there to reflect on the theme of inclusion in the initial training of teachers. The methodology used a structured questionnaire-based instrument VOSTS (Views on Science-Technology-Society), produced by Aikenhead and Ryan (1992) and the data were analyzed qualitatively. The results indicate that the biology teachers surveyed still have a naive conception of environmental education and training courses need to commit to structural and curricular changes that make the effective insertion of the subject in teacher training in the region studied.

A educação ambiental nos projetos político-pedagógicos das escolas municipais de ensino fundamental da cidade de Araraquara/SP

In this paper, we aim at describing and assessing Environmental Education in Pedagogical Policy Projects (PPP) drawn by eight elementary schools belonging to the city school network of the city of Araraquara, in the State of São Paulo, Brazil. A framework was designed to detail references to topics and activities related to the environment contained in the respective PPP. Next, the information obtained was recorded under two categories: a) content and activities, and b) theoretical background. It was found that, although seven out of the eight PPP studied pointed to work towards environment-related topics, they do not enable the theoretical and methodological grounds behind their programmed actions be identified.

A inclusão de temas ambientais nos cursos de Ciências Biológicas de universidades públicas paulistas

Environmental education (EE) is considered an essential component in individual education and requires prepared professionals to deal with the issues it covers. Teacher’s education courses should include the environmental dimension in their curriculum. Nevertheless, studies show that the EE in degrees occurs in an incipient way. This research aimed to analyze the inclusion of environmental issues in Biological Science teacher formation courses, at public universities in São Paulo. We analyzed the summaries of the disciplines in the curriculum of the courses in relation to the number of threads that refer to environmental issues. We found that the courses analyzed include the environmental dimension in the summaries of some disciplines, but in most of them, in an insignificant way. We also found that, in most cases, the disciplines are restricted to ecological aspects of environmental issues. We conclude that the investigated courses do not meet the recommendations of the legislation as regards the inclusion of the environmental dimension in the curriculum of teacher’s education.

O jornal literário Dom Casmurro: nota de pesquisa

Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq)

A construção do conhecimento em crianças do período sensório-motor: relato de uma experiência com educadoras de creche

Cet article présente un rapport d'expérience qui visait à la formation continuée des enseignants du « Centro de Vivência Infantil » de l'Universidade Estadual Paulista. À partir des notions de l’Épistémologie Génétique comme: l’action, le scheme de l’action, l’adaptation, l’accommodation et l’assimilation, nous cherchons un fondement épistémologique pour le travail d’enseignant avec les enfants entre 0 et 24 mois. Nous présentons, comme résultat pratique de l’application de la connaissance des définitions en Épistémologie Génétique, le travail de formation continuée avec les enseignantes du « Centro de Convivência Infantil » de l’UNESP et la prise de conscience résultant pour adopter la perspective épistémologique piagetienne dans leur travail quotidien avec les enfants du période sensori-moteur.

A contribuição da história para educação ambiental em comunidades

The relationship between human beings and between them and nature are the result of a historical and social context in which they are inserted. The man is a natural living being who can only survive by the exchange with nature’s metabolism, but over time and human’s decisions this relation was interrupted, which strengthened by capitalism logic resulted as a civilization crisis. With these concerns, it’s necessary to overcome the context in which the crisis was generated, transforming the relationship between men and nature. This study, based on Critical Environmental Education and qualitative research methodology, occurred on a seashore community on Guarujá, investigated the the involvement of its population on social activities already developed on Prainha Branca: how they exercise their community citizenship, which factors limit these processes, and how responsible the residents feel about their own reality, in order to elucidate the aspects that involve that dynamics and population’s potential to build their own history.

1,3-Azoles from ortho-naphthoquinones: Synthesis of aryl substituted imidazoles and oxazoles and their potent activity against Mycobacterium tuberculosis

Twenty-three naphthoimidazoles and six naphthoxazoles were synthesised and evaluated against susceptible and rifampicin- and isoniazid-resistant strains of Mycobacterium tuberculosis. Among all the compounds evaluated, fourteen presented MIC values in the range of 0.78 to 6.25 mu g/mL against susceptible and resistant strains of M. tuberculosis, Five structures were solved by X-ray crystallographic analysis. These substances are promising antimycobacterial prototypes. (C) 2012 Elsevier Ltd. All rights reserved.

Chitosan scaffold as an alternative adsorbent for the removal of hazardous food dyes from aqueous solutions

Hypothesis: The dye adsorption with chitosan is considered an eco-friendly alternative technology in relation to the existing water treatment technologies. However, the application of chitosan for dyes removal is limited, due to its low surface area and porosity. Then we prepared a chitosan scaffold with a megaporous structure as an alternative adsorbent to remove food dyes from solutions. Experiments: The chitosan scaffold was characterized by infrared spectroscopy, scanning electron microscopy and structural characteristics. The potential of chitosan scaffold to remove five food dyes from solutions was investigated by equilibrium isotherms and thermodynamic study. The scaffold–dyes interactions were elucidated, and desorption studies were carried out. Findings: The chitosan scaffold presented pore sizes from 50 to 200 lm, porosity of 92.2 ± 1.2% and specific surface area of 1135 ± 2 m2 g 1. The two-step Langmuir model was suitable to represent the equilibrium data. The adsorption was spontaneous, favorable, exothermic and enthalpy-controlled process. Electrostatic interactions occurred between chitosan scaffold and dyes. Desorption was possible with NaOH solution (0.10 mol L 1). The chitosan megaporous scaffold showed good structural characteristics and high adsorption capacities (788–3316 mg g 1).

Drying kinetics, biochemical and functional properties of products in convective drying of anchovy (Engraulis Anchoita) fillets

The aim of this work was to study the convective drying of anchovy (Engraulis anchoita) fillets and to evaluate the final product characteristics through its biochemical and functional properties. The drying temperatures were of 50, 60 and 70°C, and the fillet samples were dried with the skins down (with air flow one or the two sides) and skins up (with air flow one side). The drying experimental data were analyzed by Henderson–Pabis model, which showed a good fit (R2 > 0.99 and REQM < 0.05). The moisture effective diffusivity values ranged from 4.1 10–10 to 8.6 10–10 m2 s−1 with the skin down and 2.2 10–10 to 5.5 10–10 m2 s−1 with the skin up, and the activation energy values were 32.2 and 38.4 kJ mol−1, respectively. The product characteristics were significantly affected (p < 0.05) by drying operation conditions. The lower change was in drying at 60°C with air flow for two sides of the samples and skin up. In this condition, the product showed solubility 22.3%; in vitro digestibility 87.4%; contents of available lysine and methionine 7.21 and 2.64 g 100 g−1, respectively; TBA value 1.16 mgMDA kg−1; specific antioxidant activity was 1.91 mMDPPH g−1 min−1, and variation total color was 10.72.

Desorption isotherms and thermodynamics properties of anchovy in natura and enzymatic modified paste

The thermodynamic properties of anchovy fillets and enzymatic modified pastes in two hydrolysis degrees (3% HD and 14% HD), at 50, 60 and 70 C were evaluated. The GAB model was used to calculate the values of the monolayer moisture content and the thermodynamic properties of the samples. The enzymatic modification led to the increases of the superficial area and differential enthalpies, and decrease of the differential entropies in relation the samples in natura. The enthalpy–entropy compensation showed that the process was controlled by the enthalpy, it was only spontaneous for the samples in natura. Pore size decreased with enzymatic modification, and all samples were in the limit of region between micropores and mesopores (<2 nm) for moisture content of 15%, and mesopores (from 2 to 50 nm) to moisture content above 15%.

Use of Spirulina platensis micro and nanoparticles for the removal synthetic dyes from aqueous solutions by biosorption

In this research, micro and nanoparticles of Spirulina platensis dead biomass were obtained, characterized and employed to removal FD&C red no. 40 and acid blue 9 synthetic dyes from aqueous solutions. The effects of particle size (micro and nano) and biosorbent dosage (from 50 to 750 mg) were studied. Pseudofirst order, pseudo-second order and Elovich models were used to evaluate the biosorption kinetics. The biosorption nature was verified using energy dispersive X-ray spectroscopy (EDS). The best results for both dyes were found using 250 mg of nanoparticles, in these conditions, the biosorption capacities were 295 mg g−1 and 1450 mg g−1, and the percentages of dye removal were 15.0 and 72.5% for the FD&C red no. 40 and acid blue 9, respectively. Pseudo-first order model was the more adequate to represent the biosorption of both dyes onto microparticles, and Elovich model was more appropriate to the biosorption onto nanoparticles. The EDS results suggested that the dyes biosorption onto microparticles occurred mainly by physical interactions, and for the nanoparticles, chemisorption was dominant.