Una imagen sobre la educación artística en la actualidad

Es innegable la importancia de la Expresión Plástica en el crecimiento global del niño, con todo, intervinientes en el proceso didáctico y muchos teóricos consideran que el arte en la educación se encuentra en una posición menospreciada (BARBOSA, 2001, 2002; EFLAND, 2002, 2004; HERNÁNDEZ, 2000; MARTINS, 2002; LÓPEZ GARCÍA, 2003; OLIVEIRA et al., 2004; WAGNER, 2001). Estas consideraciones llevan a cuestionar las prácticas pedagógicas de los educadores infantiles, la forma como desarrollan su currículo, las oportunidades educativas que ofrecen a los niños, o sea, importa percibir si la Expresión Plástica se desenvuelve con calidad pedagógica en contextos de Educación Infantil. En este sentido, el problema planteado conduce a la necesidad de conocer nuestra realidad y a presentar caminos congruentes con el tiempo en el que vivimos, donde el concepto de arte e imagen invaden y amplían nuestras experiencias cotidianas que necesitan ser descodificadas para que sean entendidas. Así, este trabajo pretende exponer un diagnóstico de las prácticas educativas ejecutadas por educadores infantiles del distrito de Oporto (Portugal) en el dominio de la Expresión Plástica.The importance of the Plastic Expression in the global development of the child is undeniable, nevertheless, participants in the didactic process and theoretical people think that art in education is in a despised position (BARBOSA, 2001, 2002; EFLAND, 2002, 2004; HERNÁNDEZ, 2000; MARTINS, 2002; LÓPEZ GARCÍA, 2003; OLIVEIRA et al., 2004; WAGNER, 2001). These perspectives lead to questioning the pedagogical practices of early childhood educators, the way in which they develop the curriculum, the educational opportunities that they offer children, thus attempting to understand if the domain of Plastic Expression develops with pedagogical quality within the context of early childhood education. In this sense, the problem raised leads to the need to comprehend our reality and present ways that are coherent with the times in which we live, where the concept of art and image invade and extend our daily experiences and for them to be understood they need to be deciphered. This article intends to present a diagnosis of the educational practices of early childhood educators of the district of Oporto (Portugal) in the domain of the Plastic Expression.

A relação entre o direito e a teoria econômica na jurisprudência do cade sobre tabelas médicas

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Direito, Programa de Pós-Graduação em Direito, 2015.

V ENCUENTRO INTERNACIONAL DE ECONOMISTAS SOBRE GLOBALIZACIÓN Y PROBLEMAS DEL DESARROLLO

Este año se conmemora el 150 Aniversario del natalicio de uno de los grandes pensadores que ha trascendido sus tiempos, José Martí. En justo honor a él iniciamos nuestra relatoría del V Encuentro Internacional sobre Globalización y Problemas del Desarrollo con dos de sus bellos aforismos: Patria es Humanidad. Y decía también: “el AMOR a la Patria no es el amor ridículo a la tierra, ni a las yerbas que pisan nuestras plantas, es el odio invencible a quien la oprime, es el rencor eterno a quien la ataca."”Entre el 10 y el 14 de febrero, los más de 1500 participantes en este evento, procedentes de 41 países, han enaltecido el AMOR que les inspira la Patria Grande, participando en intensas jornadas de análisis y reflexión que fortalecen las convicciones y compromisos colectivos a favor de una Globalización alternativa, porque la actual, oprime y ataca a la Humanidad.

Competição larval em Chrysomya megacephala (F.) (Diptera: Calliphoridae): efeitos de diferentes níveis de agregação larval sobre estimativas de peso, fecundidade e investimento reprodutivo

In insects that utilize patchy and ephemeral resources for feeding and egg laying, the outcome of larval competition for food resources depends on the amount of resources and the spatial distribution of immatures among patches of food. In the present study, the results of larval competition for food in Chrysomya megacephala, in traits such as female weight, fecundity and reproductive investment, were different in situations where the level of larval aggregation (proportion of competitors per amount of food) was the same, but with densities of competitors and amounts of food proportionally different. These results are indicative that the larval competition may depend both on the larval density and the amount of food, in different situations with the same proportion of larvae per gram of food.

Reflexão sobre alguns desafios do ensino médio no Brasil hoje

The purpose of this article is to develop some ideas that may contribute to the debate about the secondary education in Brazil, giving emphasis to the conditions existing in the educational institutions, the ongoing educational policies and the challenges posed by the social, economic and political reality of the country. It is also discussed the political, social and economic importance of the expansion and the compulsory character of secondary education as well as the school's culture dimension, in its relationship to the so-called knowledge society. Finally, the role of secondary education for the youth and the new demands it poses for teachers are presented, among some others aspects.

Novos sorventes baseados em poli (metiloctilsiloxano) sobre sílica para uso em extração em fase sólida

This paper presents an easy and practical procedure to obtain silica-based C-8 type sorbents for use in solid-phase extraction. The materials are prepared by depositing poly(methyloctylsiloxane), PMOS, on the silica support. Two different treatments for immobilization were used: thermal treatment or gamma irradiation. Suitable recoveries were obtained after pre-concentration of dilute solutions, at the ng/L level, of a mixture of pesticides, indicating the good performance of the materials.

Refletindo sobre o caso celobar®

By mid 2003, the Brazilian people accompanied astonished, in the press, the news about the death of more than 20 persons due to ingestion of a pharmaceutical product containing a suspension of barium sulfate (Celobar®) commonly used as a radiological contrast. Analysis of the product indicated the presence of barium carbonate (about 13% weight/weight) which reacts easily with the hydrochloric acid in the stomach liberating barium ions, a severe poison. In this article, we briefly discuss the possible economic, personal and technical causes that led to this disaster.

Sobre a força de ácidos e bases: algumas considerações

This article intends to answer the question: what is the best way to evaluate the strength of acids and bases? The meaning of the word strength, the main acid-base theories (ionotropic and electron pair), the neutralization reactions and the thermodynamical formalism are considered. Some cases are presented and discussed. In conclusion, evaluating acid-base strength is dependent on the theory (formalism) as well as on the system and measuring techniques.

Alteração da atividade enzimática em organismos aquáticos por poluentes de origem agrícola: uma abordagem geral e sobre a suscetibilidade da fosfatase ácida

The input of agrochemicals in the aquatic compartment can results in biochemical injuries for living organisms. In this context, the knowledge of alterations of enzymatic activities due the presence of agriculture pollutants contributes for the elucidation of the mechanisms of toxicity, implementation of economic methods for monitoring purposes and establishment of maximum allowed concentrations. In the present work, the above considerations are discussed, and data concerning changes in enzymatic function by pesticides and fertilizer contaminants are reviewed. Also, we focused on the acid phosphatase due its susceptibility to several pollutants and diversity in cellular functions.

Curiosidades sobre a reação aldólica utilizada como etapa chave na síntese Brasileira dos ácidos pterídicos A e B

This work describes an overview of our synthesis of pteridic acids A and B and discloses some interesting results related to the lithium enolate-mediated aldol reaction used as key step to set up the C5-C15 fragment of these natural products. This first example, as far we know, of an aldol reaction between a chiral enolate of a (Z) enone and a chiral aldehyde has driven us to a series of experiments showing the remarkable relation between enolization selectivity and reaction conditions.

Uma revisão sobre o efeito Toms: o fenômeno onde macromoléculas atenuam a turbulência em um líquido

It is very well known that the addition of polymers to a liquid increases the shear viscosity of the solution. In other words, the polymer increases the dissipation of the flow energy. Contrarily, in turbulent flow, some particular macromolecules in very low concentration are able to produce large attenuation in the turbulence and thus, decreasing the dissipation of the energy. This article present a brief revision about macroscopic and molecular models used to explain this dynamic effect. Some of the experimental techniques used to quantify the attenuation of the turbulence and the main active substances are also discussed.

Química forense: perspectivas sobre novos métodos analíticos aplicados à documentoscopia, balística e drogas de abuso

In this review recent methods developed and applied to solve criminal occurences related to documentoscopy, ballistic and drugs of abuse are discussed. In documentoscopy, aging of ink writings, the sequence of line crossings and counterfeiting of documents are aspects to be solved with reproducible, fast and non-destructive methods. In ballistic, the industries are currently producing ''lead-free'' or ''nontoxic'' handgun ammunitions, so new methods of gunshot residues characterization are being presented. For drugs analysis, easy ambient sonic-spray ionization mass spectrometry (EASI-MS) is shown to provide a relatively simple and selective screening tool to distinguish m-CPP and amphetamines (MDMA) tablets, cocaine and LSD.

Atividade de extratos de Arrabidaea chica (Humb. & Bonpl.) Verlot obtidos por processos biotecnológicos sobre a proliferação de fibroblastos e células tumorais humanas

Arrabidaea chica (H&B) Verlot is a plant popularly known as Pariri and this species is a known source of anthocyanins, flavonoids and tannins. This report describes an approach involving enzymatic treatment prior to extraction procedures to enhance A chica crude extract anticancer activity. Anticancer activity in human cancer cell lines in vitro using a 48 h SRB cell viability assay was performed to determine growth inhibition and cytotoxic properties. The final extraction yield without enzyme treatment was higher (24.28%) compared to the enzyme-treated material (19.03%), with an enhanced aglycones anthocyanin ratio as determined by HPLC- DAD and LC-MS with direct infusion.

Notas sobre duas espécies de Thelypteris Schmidel (Thelypteridaceae - Pterophyta) do Brasil

During the taxonomic study of the Thelypteridaceae from southeastern Brazil was founded Thelypteris polypodioides (Raddi) C. F. Reed and Thelypteris villosa (Link) C. F. Reed, two rare and poorly known species. The taxonomic position of these species is uncertain. This study presents key, descriptions, illustrations, data on geographical distribution, and comments for both species, as well as comments on taxonomic affinity between the two species and Thelypteris subgenera.

SEMELHANÇAS ENTRE UPTAKE E TRACE: CONSIDERAÇÕES SOBRE TRADUÇÃO

This study is a reflection about the similarities between uptake and trace, and translation taken as an event - at once possible and impossible - which deflagrates and constitutes meaning through the language game played by the subjects of communication: text-translator. Both Austin and Derrida, each one on his own way, show that meaning is part of the human language process. The uptake, in Austin s point of view, guarantees the existence of human language, assured by a process of recognition between the subjects of communication, process through which the production of meaning takes place. The trace, according to Derrida, deflagrates, through the human language, the crashing of meaning and destroys the possibility of someone reaching the origin. In this study, taking into consideration the similarities between uptake and trace, I try to disclose translation taken as an event which at once contaminates the languages and is contaminated by them.