Adubação fosfatada no crescimento inicial e na nutrição de mudas de pinhão-manso

Physic nut (Jatropha curcas L.) is a perennial oilseed species that has aroused economic interest for biodiesel production. Among other factors, it is essential to determine the nutritional demands of this species to facilitate raising it as a crop. This study aimed to evaluate the early growth and mineral nutrition of physic nut, as well as soil fertility, as affected by phosphorus fertilization. The study was carried out in a plastic greenhouse in a completely randomized block experimental design with four replicates. The plants were grown in plastic pots filled with 50 dm³ of Latossolo Vermelho (Rhodic Hapludox). Application rates of 0, 50, 100, 150 and 200 mg dm-3 of P were tested, plus a control. Evaluations of plant height and root collar diameter were performed monthly. The experiment was ended 150 days after transplant of the seedlings, at which time leaf area, dry weight, leaf contents and total accumulation of macro- (N, P, K, Ca, Mg and S) and micronutrients (B, Cu, Fe, Mn and Zn) were performed, and soil chemical properties were analyzed. We concluded that absence of P fertilization alone is as limiting to early growth of physic nut as simultaneous absence of soil amendment and fertilization. The rate of 57 mg dm-3 of P may be recommended for initial growth of physic nut. The total accumulation of nutrients in physic nut seedlings exhibited the following order: K>N>Mg>Ca>P>S>Fe>Mn>B>Zn>Cu. Phosphorus fertilization resulted in increased soil cation exchange capacity (CEC).

Degradação do corante comercial disperse red1 por processo foto-Feton e avaliação ecotoxicológica

Pós-graduação em Química - IQ

Nanopartículas magnéticas de 'FE''CO'@'AU': preparação, caracterização e funcionalização com complexo de 'RU'(II) luminescente

Pós-graduação em Química - IQ

Structural, electronic and optical properties of Fe(III) complex with pyridine-2,6-dicarboxylic acid: A combined experimental and theoretical study

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

Photochemical transformation of antibiotics by excitation of Fe(III)-complexes in aqueous medium

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Insight into the Effects of Fe Addition on the Local Structure and Electronic Properties of SrTiO3

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise documental das imagens fotográficas de romarias no Nordeste do Brasil

A discussion, through a literature review, on the use of photographic documents and Documentary Analysis (DA) for the preservation, description and retrieval of images of pilgrimages in northeastern Brazil, which are archived at the Laboratory of Information Science and Memory (LACIM). The photograph acts as an expression of faith and devotion; it is a witnesses and documents, through images, the records of the day-to-day folk religion in its multiple meanings and situations, linked to the sacred. The DA —as a set of procedures performed after the reading of documents— facilitates the analysed collection location or query through the documentary language. This paper tries to show that the particular form of the information contained in a photographic archive echoes submerged memories of the pilgrims, authenticating a social fact in the country, capturing the sacredness from specific moments of celebration.

O trabalho associado como princípio educativo e a educação escolar: notas a partir das fábricas recuperadas brasileiras e argentinas

This article aims to discuss the school education and other forms of education at Recovered Factories (RFs) in Latin America, especially in Brazil and Argentina. To achieve our goal, we made a brief assessment of the current historical moment, and then we try to differentiate the anti-capital struggles from the punctual struggles. In the third and fourth sections, we observed RF’s positive aspects (Associated Labor as an educational principle) and the negative ones: the cooptation by the State or the degeneration at the capitalist market. The projects of professional education in RFs, the demands of school contents and form flagged by FRs were exposed in the fifth section.

Cooperação Técnica Internacional e Financiamento Externo: Aportes Teóricos

The main objective of this article is to suggest a conceptual taxonomy of thegenerically called International Technical Cooperation (ITC) and Foreign Financial Aid (FFA) phenomena, which will have the pretension to ease their comprehension and their practical consequences for the Brazilian society and for the national State. Insofar, wheninduced by a dynamical structural change in the international society, some Brazilianfederated sectors, specially, municipalities, by the exercise of so-called paradiplomacy or federated diplomacy, are developing public management instruments to acquire resources through ITC and FFA experiences, without making a reflexive thought about their benefits and their consequences.

Formação, função e formas de provimento do cargo do gestor escolar: as diretrizes da política educacional e o desenvolvimento teórico da administração escolar

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

Desenhos sobre aprendizagem e não aprendizagem: a construção do conhecimento social sob o enfoque piagetiano

The article presents preliminary data of a survey that aimed to investigate the beliefs of children and adolescents about not learning. A total of 80 students, aged 6 to 16 years participated of the study. Among the participants, 20 are 6 years old, 20 are 9, 20 are 12 and 20 are 16 years old. As methodological tool, it was asked the participants to draw a person that learns and another one that doesn’t learn. Data was analyzed according to the Piagetian perspective for the construction of social knowledge. The main results indicate that a significant part of the participants tend to blame the students for the result of no learning. This indicates that students are able to consider the amplitude of different dimensions of social phenomena only partially. When considering the level of understanding of social reality, it was observed that, even at older ages, participants have a very basic notion of the social world.

Repensando o lugar da representação, da transmissão e da experiência no ensino da Filosofia

The question that we develop in this study can be proposed as follows: can knowledge be transmitted in a representational way through an explanation in such a way that the one who is learning does not have an experience itself of what he is learning? Grounded on Hume, Deleuze, Rancière and Gallo, we aim to show that only the experience with the object can promote effective learning, for violating the thought to search by itself for its meaning and for its own understanding, and not for the mere repetition of contents that have been shared and taken as important, as we have seen in schools.

Das virtualidades do cuidado da infância em Rousseau ao seu pleno governo na arte pedagógica

This article discusses the genesis and development of the relationship between art education and childhood. To address this issue, we highlight the virtualities of the care with childhood postulated by Rousseau and Kant, also in its genesis, as opposed to an extreme government or to the domain that has on it or from it, in its subsequent development in contemporary times. Discussed, in this way, how these virtues have been abandoned by the practices included by art pedagogical, in order to find a place for thought of Rousseau and think it in its actuality.

Structural, morphological and magnetic characterization of electrodeposited Co-Fe-W alloys

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Effect of Fe-doping on the structural, microstructural, optical, and ferroeletric properties of Pb1/2Sr1/2Ti1-xFexO3 oxide prepared by spin coating technique

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