Metacercárias de Diplostomum (Austrodiplostomum) compactum Lutz, 1928 (Digenea, Diplostomidae) em peixes do rio Paraná, Brasil. Prevalência, sazonalidade e intensidade de infecção

This paper aims at evaluating the occurrence of Diplostommn (Anstrodiplostomum compactum (Digenea: Diplostomatidae) in the eyeball of Plagioscion sqnamosissimus (corvina) and Cichla ocellaris (tucunaré), monthly captured in Paraná river, Presidente Epitácio, state of São Paulo, Brazil. From 61 corvinas under analysis, 56 of them contained parasites (92%) with intensity rate of 42.0 host parasites. From an amount of 81 tucunarés, 45 contained parasites (55%) with intensity rate of 9.3 parasites. Corvinas showed prevalence from 71 to 100% with the highest intensity rates (103.3 and 106.9) from February to March, 2001. Comparatively, the tucunaré showed the highest prevalence from November 2000 (90%) to February 2001 (80%). The tucunaré highest intensity rates occurred on September, 2000 (12.7), December, 2000 (12.2) and February, 2001 (16.1). Metacercariae showed a hollow womb body and a posterior region of a sinuous conic protuberance, an oral sucker smaller than the acetabulae, a simple acetabulae located in the pre-equatorial region of helminto. A short pre-pharynx followed by a muscular pharynx, genital pore next to acetubulae. Corvina metacercariae presents 1.434,0 μm (880 to 1.840) long by 611.2 ± 93.4 μm (400 to 792) wide. Tucunaré metacercariae, 1.462.4 μm (960 to 2.480) by 710.8 μm (560 to 960). Authors confirmed corvina great susceptibility to Diplomastum and the relationship between the parasitism and the aquatic and climatic parameters.

PLANINDEX: 92-001

Contiene resúmenes bibliográficos de documentos sobre planificación y desarrollo en América Latina, recogidos y procesados en el marco del Sistema de Información para la Planificación en América Latina y el Caribe (INFOPLAN).

DOCPAL resúmenes sobre población en América Latina: 92-001

Contiene resúmenes bibliográficos de documentos sobre población y temas relacionados que se producen en América Latina y el Caribe, publicados entre 1981-1985.

O papel das argininas alfa-92 e alfa-141 na regulação das propriedades funcionais de hemoglobinas por íons cloreto

The oxygenation of human Hb (HbA) demands a three state model: two deoxy states To and Tx, free and complexed with anions respectively, and an oxy R state. The regulation between these states is modulated by the presence of anions, such as chloride, that binds to T state. The b inding if chloride, however, remains controversial. The aim of this work is the study of arginines 92a (a1ß2 interface) and 141a (C-terminal) as chloride binding sites. To investigate that, we have studied 92 and 141 site directed mutant species: natural mutants Hb J-Cape-Town (R92Q), desArg (R141Δ), Chesapeake (R92L), and the constructed Chesapeake desArg (R92L,141Δ). We expressed Hbs in Escherichia coli and purified. Through oxygen binding curves we measured affinity and cooperativity, in function of water effect and Bohr effect in presence and absence of chloride. Structural features were obtained through 1H NMR spectroscopy Oxygen binding properties and Bohr effect measured indicated a higher affinity and lower cooperativity in absence and presence of chloride for all mutants. Structural changes represent functional aspects of mutant Hbs, such as a significant rise in affinity or a change in cooperativity. Water activity studies conducted as a function of chloride concentration showed that the only Hb desArg follows the thre state model. The other mutant Hbs do not exhibit the Tx state, a fact confirmed by the number of water molecules bound to each Hb during the deoxy-oxy transition. This behavior suggests that the Arginine 92 site could be responsible for chloride binding to Hb, since oxygenation of 92 mutant Hbs cannot be adjusted by the three state model. However, Bohr effect showed that all mutant Hbs released~1 proton in chloride presence, different from HbA that releases ~2, suggesting a role for 141 arginine in the tertiary and quaternary Bohr effect.

O projeto para o pavilhão brasileiro na expo' 92 em sevilha e a chamada arquitetura paulista

This article discusses the controversy surrounding the winning project of the competition organized by the Brazilian Ministry of Foreign Affairs for the Brazilian pavilion at the Expo'92 in Seville, Spain; the views of architecture critics made at the time of the results, and, their implications for Brazilian architecture. At the beginning of the 90s, this competition was a kind of confrontation of ideas, between the architects who were in favour of a renewal of architecture and those who defended the resumption of national architectural traditions, buildings with large spans, constructed in reinforced concrete. These architects were the heirs of the so called Paulista architecture, which was characterised by the work undertaken from the 60's by important architects such as Vilanova Artigas and Paulo Mendes da Rocha. The modern references adopted by the winning project, from the architects Angelo Bucci, Alvaro Puntoni and José Oswaldo Vilela, sparked controversies because of the difficulty of resuming the teachings of the old modern masters when faced with new times. These controversies were related to the end of the military dictatorship in Brazil and the process of opening markets, and by the relevance of a re-evaluation of the so-called Paulista architecture.

Europe 92 and the Latin American economy

Includes bibliography

Europa 92 y la economía latinoamericana

Incluye Bibliografía

Río-92 y la realidad latinoamericana: una mirada a la crisis ambiental desde el Sur

Incluye Bibliografía

A adesão do Brasil ao TNP: uma análise da trajetória da questão nuclear brasileira nos governos de Fernando Collor de Mello (1990-92) e Fernando Henrique Cardoso (1995-98)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Revista de la CEPAL no.92

Inversión extranjera directa y desarrollo: la experiencia del Mercosur / Daniel Chudnovsky y Andrés López. -- Desarrollo de ventajas competitivas: pymes exportadoras exitosas en Argentina, Chile y Colombia / Dario Milesi, Virginia Moori, Verónica Robert y Gabriel Yoguel. -- Efectos de la capacitación en la competitividad de la industria manufacturer / Ramón Padilla y Miriam Juárez. -- La inserción laboral de los jóvenes: características, tensiones y desafíos / Jürgen Weller. -- La globalización de la atención de la salud: oportunidades para el Caribe / Richard L. Bernal. -- La protección social en el Caribe de habla inglesa / Oliver Paddison. -- Reforzando un pilar fiscal: el impuesto a la renta dual a la uruguaya / Alberto Barreix y Jerónimo Roca. -- Migraciones internacionales y desarrollo: el impacto socioeconómico de las remesas en Colombia / David Khoudour-Castéras. -- Agentes extrasectoriales y transformaciones recientes en el agro argentine / Clara Craviotti. -- Jueces de la Revista de la CEPAL 2005-2006. -- Orientaciones para los colaboradores de la Revista de la CEPAL. -- La Revista de la CEPAL en Internet . -- Publicaciones recientes de la CEPAL.

CEPAL Review no.92

Foreign direct investment and development: the MERCOSUR experience / Daniel Chudnovsky and Andrés López. -- Developing competitive advantages: successful export SMES in Argentina, Chile and Colombia / Dario Milesi, Virginia Moori, Verónica Robert and Gabriel Yoguel. -- Effects of training on competitiveness in the manufacturing sector / Ramón Padilla and Miriam Juárez. -- Youth employment: characteristics, tensions and challenges / Jürgen Weller. -- The globalization of the health-care industry: opportunities for the Caribbean / Richard L. Bernal. -- Social protection in the English-speaking Caribbean / Oliver Paddison. -- Strengthening a fiscal pillar: the Uruguayan dual income tax / Alberto Barreix and Jerónimo Roca. -- International migration and development: the socioeconomic impact of remittances in Colombia / David Khoudour-Castéras. -- Non-sectoral agents and recent changes in Argentina’s agricultural sector / Clara Craviotti. -- Referees for CEPAL Review 2005-2006. -- Guidelines for contributors to the CEPAL Review. -- CEPAL Review on the Internet. -- Recent ECLAC publications.