990 resultados para Discépolo, Armando


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This study aimed to describe the spatial and temporal patterns of variation in trophic state and its relation with the structure and dynamics of planktonic community of a large reservoir located in semi-arid tropical region of Northeast Brazil. The reservoir Armando Ribeiro Gonçalves is the biggest reservoir of the Rio Grande do Norte State and is responsible for about 53% of all surface water accumulated in the State. The samples of water and plankton were taken monthly in 10 points distributed throughout the longitudinal axis of the reservoir and over a full hydrological cycle. The samples were collected to determine concentrations of total phosphorus, total nitrogen, chlorophyll a and suspended solids (fixed and volatile) and for determining the composition and abundance of phytoplanktonic and zooplanktonic species. During the study period, the reservoir was characterized as eutrophic and there was no trend of increasing the trophic state of the reservoir in the period of drought. The concentrations of total phosphorus and suspended fixed solids decreased towards the dam while the N:P ratios increased in the same direction due to the reduction in the phosphorus concentrations and relative constancy in the nitrogen concentrations. The N:P ratios observed were indicative of greater limitation by phosphorus than by nitrogen. However, as concentrations of both nutrients were high and the water transparency was very low, with secchi depth usually lower than one meter, it seems likely that the planktonic primary production of the reservoir is more limited by the availability of light than the availability of nutrients. High nutrient concentrations coupled with low availability of light may explain the continuing dominance of filamentous cyanobacteria such as Cylindrospermopsis raciborskii in the plankton of the reservoir.These cyanobacteria are potentially toxic and pose a serious environmental problem because it compromises the water quality for public supply, recreation and fishing when present in high densities as in this study. The mesozooplankton of the reservoir was dominated by the calanoid Notodiaptomus cearensis and the cladoceran Diaphanosoma spinulosum. In general, the structure of zooplankton community seems to be particularly influenced by the spatial variation of cyanobacteria. The results of the regression analyses show that both the chlorophyll a concentrations and the cyanobacteria biovolume were more strongly correlated with the nitrogen than with phosphorus and that the water transparency was more strongly correlated with algal biomass than with other sources of turbidity. The maximum load of phosphorus to attain the maximum permissible concentration of total P in the reservoir was estimated in 63.2 tonnes P/ year. The current external P load to the reservoir is estimated in 324 tonnes P / year and must be severely reduced to improve the water quality for water supply and allow the implementation of aquaculture projects that could contribute to the socio-economic development of the region

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The black communities, nowadays known as quilombolas, have long been segregated in social and cultural distances in relation to other groups in the country. Gradually, the establishment of public policy has enabled the inclusion of these social communities in new instances, favoring the improvement of standards of learning. In order to know the route of the school in relation to its surroundings, this paper presents a reflection on the educational history of the Municipal School Padre Armando de Paiva, inserted in the context of afrodescendência (African descendants), in the community called Sibaúma, municipality of Tibau do Sul - RN, characterized as the object of this study. Methodologically, this study is limited in a descriptive research of the historical reconstruction of the school, a case considered worthy of analysis. From a reflection on the presence of African descent in Brazil and in Rio Grande do Norte, the study also presents information on education in Brazil. Finally, it presents the trajectories directed to the analysis of physical conditions, the dynamics of registration, and avoidance of repetition of its students and the qualifications of its teaching staff. Survey selected for analysis five-year academic periods, a series which began in the year nineteen eighty and ends in the year two thousand and ten

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Piranhas-Açu basin is a Federal watershed with a drainage area of 43.681,5 km2, sited at Brazilian northeast semi arid, with 60% of your area in Paraiba State and 40% in Rio Grande do Norte State. The main river, Piranhas-Açu, has strategic importance for development of these states, because it s an essential source for many socio-economics activities developed along watercourse. The river s reach between Coremas-Mãe D`água Dam and Armando Ribeiro Gonçalves Dam has many irrigation projects, and supply many riverside cities. All this activities practiced in this river s reach consumes high water volumes. Due the importance of this stream and the necessity of an adequate management, this work aims for an impartial and detailed evaluation of real water supply conditions in this river s reach, by the application of hydrological modeling, including the arrangement of main dams in tributaries, and storage reservoir water balance. The rainfall-discharge model s applied in each sub-basins it was selected the model MODHISA- Hydrological Model of Semi Arid, that is a concentrated model with easy application. The simulation produced 50 years of inflows into the reservoirs, for which, were constructed the guaranties curves; and produced 50 years of synthetic discharge data in relevant points on the river and on its affluents; so it was constructed the permanence curves. Confronting the available discharge with the current and futures volumes of raw water captured in this river s reach, it was verified that de demands have high guaranties. This work concluded that the MODHISA Model is suitable to reproduce the hydrologic characteristics of Piranhas-Açu sub-basins, and showing good results

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Conselho Nacional de Desenvolvimento Científico e Tecnológico

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The knowledge of the phytoplankton community, as an integral and dynamic processes of eutrophication, provides information essential for proper management and handling. A growing problem of cyanobacteria in reservoirs around the world as a result of artificial eutrophication processes, generating a particular concern, because some species produce cyanotoxins, which can cause adverse effects on human health. The present work aims to characterize the spatial and temporal dynamics of phytoplankton, assessing their potential as ecological indicator of water quality in reservoirs semiarid region. The samples of water were collected monthly between 2009 and 2011, at three points along the dam Armando Ribeiro Gonçalves / RN. In each sample were measured physico - chemical analysis of water and biological components. We conducted a scientific dissemination activity, with distribution and reading primer on eutrophication, informative talk about water quality, questionnaires and performing a play in a public school in the city of Itajá / RN. The reservoir was considered eutrophic in three points, taking into account the values of chlorophyll -a and phosphorus, adopted to characterize eutrophic environments of semi-arid areas. High density of cyanobacteria, with a maximum value of 2.227.862 cél.ml- 1 and minimum of 43.456 cél.ml- 1 was recorded in lentic and semilêntico points throughout the study, exceeding the levels of drinking water (20.000 cél.ml- 1) established in 2.914/2011 Ordinance of the Ministry of Health of Brazil. All samples contained microcystin, and 44 % had values superiores1μg L- 1. The thermal pattern of the water column showed micro stratifications with differences of less than 1 ° C from five feet deep. The distribution pattern was the type profile clinogrado with oxygen deficit in the bottom of the reservoir. Oxiclina from 10 meters depth was observed during the rainy season (May-June) in the two years of study. The phytoplankton community was represented by 10 functional groups: S1, M, H1, Lo, P, F, Sn, P, W2 and R. The assessment of the ecological status of the system by the index Q showed poor water quality. The results of the study show that the vertical variations were less pronounced than the seasonal variations of cyanobacteria and phytoplankton community in general in the reservoir. The presence of cyanotoxins confirms the need for the monitoring of water quality and measures to reduce eutrophication in water supply reservoirs semiarid RN and demonstrates the challenge for water managers and health authorities to ensure water quality and consequently minimize risks to human health. Compared to the lecture, the primer was considered more efficient in sensitizing the participants, featuring a dynamic practice, differentiated learning, create opportunities for students to rethink attitudes of respect and care for the environment, and shall have the opportunity to learn the subject content from your reality and living environment. The knowledge generated from the activity of scientific were seen as essential for raising awareness of some of the region`s environmental problems , such as eutrophication

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La poesía de Armando Tejada Gómez (1929-1992) se destaca con perfiles nítidos en el desarrollo de las letras mendocínas correspondiente a la segunda mitad del siglo XX y constituye una faceta más de un interesante movimiento cultural no exclusivamente literario, que se conoce como la Generación del '50. En el presente artículos se analizan las fuerzas que juegan en el campo intelectual de mediados del siglo XX: el viraje a lo popular con la incorporación del coloquialismo y la asunción de los ritmos de la canción popular, la temática ciudadana, la preocupación social y el sentido americanista. Esta nueva estética, que ha recibido las denominaciones de realismo romántico (Freidemberg), de poesía existencial (César Fernández Moreno), de neohumanismo (José Isaacson), presenta además como rasgo saliente una gran libertad interior y exterior. Todas estas características se ponen de manifiesto en la poesía de Tejada Gómez. A ello hay que sumar también la libertad en el manejo de las convenciones literarias, la borradura de límites entre los géneros, por ejemplo, lírico y dramático, o la incorporación de las denominadas "formas populares" al registro de la lírica mal llamada "culta". En cuanto a la libertad métrica de la que también hace gala, viene a ser apenas una consecuencia técnica de aquella libertad de fondo ya aludida, que asume como objeto poético aun la trivialidad de lo cotidiano.

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Hace casi dos décadas atrás distintos autores manifestaban su preocupación respecto al surgimiento de nuevas formas de segregación, lo cual pondría en tensión el clásico modelo de ciudad compacta que habría caracterizado la ciudad hispanoamericana. Desde nuestro punto de vista esto no es del todo novedoso. Para fundamentar esta afirmación proponemos el análisis del caso de la ciudad de Córdoba durante el período colonial hasta el primer cuarto de siglo XX. El propósito que nos orienta es reflexionar sobre la significatividad de los procesos históricos al momento de pensar hoy políticas socio-habitacionales más inclusivas de los sectores desfavorecidos, entre ellos las migraciones extranjeras.

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Editor del Novecientos uruguayo pero, también, pionero en la edición del teatro argentino, el italiano Orsini M. Bertani realizó una labor cultural clave para las minorías de su tiempo (que no siempre lo respaldaron) y, sobre todo, para el futuro. En el sello editorial que llevó su nombre publicó básicamente a los contemporáneos del modernismo naciente (Julio Herrera y Reissig, Delmira Agustini) y del realismo criollo o urbano (Florencio Sánchez, Javier de Viana, tal vez las primeras piezas de Armando Discépolo), cerrando su carrera con el impulso de la revista La Pluma (1927-1931). Este artículo revisa su proyecto y sus líneas en el marco de los esfuerzos contemporáneos del Río de la Plata

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Editor del Novecientos uruguayo pero, también, pionero en la edición del teatro argentino, el italiano Orsini M. Bertani realizó una labor cultural clave para las minorías de su tiempo (que no siempre lo respaldaron) y, sobre todo, para el futuro. En el sello editorial que llevó su nombre publicó básicamente a los contemporáneos del modernismo naciente (Julio Herrera y Reissig, Delmira Agustini) y del realismo criollo o urbano (Florencio Sánchez, Javier de Viana, tal vez las primeras piezas de Armando Discépolo), cerrando su carrera con el impulso de la revista La Pluma (1927-1931). Este artículo revisa su proyecto y sus líneas en el marco de los esfuerzos contemporáneos del Río de la Plata

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Editor del Novecientos uruguayo pero, también, pionero en la edición del teatro argentino, el italiano Orsini M. Bertani realizó una labor cultural clave para las minorías de su tiempo (que no siempre lo respaldaron) y, sobre todo, para el futuro. En el sello editorial que llevó su nombre publicó básicamente a los contemporáneos del modernismo naciente (Julio Herrera y Reissig, Delmira Agustini) y del realismo criollo o urbano (Florencio Sánchez, Javier de Viana, tal vez las primeras piezas de Armando Discépolo), cerrando su carrera con el impulso de la revista La Pluma (1927-1931). Este artículo revisa su proyecto y sus líneas en el marco de los esfuerzos contemporáneos del Río de la Plata