Estudo comparado do pensamento de Joan Robinson e Milton Friedman

É objetivo deste trabalho a ánalise comparada do pensamento de dois economista: Milton Frideman que acredita no capitalismo como um sistema que garante a maximização do desenvolvimento e Joan Robinson cujos são diferentes e que propõe o socialismo como solução mais plausível para os problemas econômicos que atingem a maioria dos povos. Esta análise nos permitirá compreender melhor como são tratados e explicados os problemas sócio-econômicos partindo de premissas diferentes sobre suas causas.

Relationship between antioxidant capacity and total phenolic content of red, rosé and white wines

Phenolic compounds are one of the most important quality parameters of wines, since they contribute to wine organoleptic characteristics such as colour, astringency, and bitterness. Furthermore, several studies have pointed out that many show biological properties of interest, related to their antioxidant capacity. This antioxidant activity has been thoroughly studied and a wide variety of methods have been developed to evaluate it. In this study, the antioxidant activity of commercial Terras Madeirenses Portuguese wines (Madeira Island) was measured by three different analytical methods: [1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay, 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTSradical dot+)) radical cation decolourisation, and ferric reducing/antioxidant power (FRAP) for the evaluation of reducing power (PR) and correlate them with the total phenolic content determined with the Folin–Ciocalteu’s reagent using gallic acid as a standard. The total polyphenol concentration was found to vary from 252 to 1936 mg/l gallic acid equivalents (GAE). The antiradical activity varied from 0.042 to 0.715 mM Trolox equivalents and the antioxidant capacity varied from 344 to 1105 mg/l gallic acid equivalents (GAE). For the reduction power we obtained 3.45–3.86 mM quercetin equivalents.

Triiodothyronine (T3) does not induce RANKL expression in rat ROS 17/2.8 cells

Osteoclastogenesis may be regulated via activation of the RANK/RANKL (receptor activator of nuclear factor-kappa B/ receptor activator of nuclear factor-kappa B ligand) system, which is mediated by osteoblasts. However, the bone loss mechanism induced by T3 (triiodothyronine) is still controversial. In this study, osteoblastic lineage rat cells (ROS 17/2.8) were treated with T3 (10(-8) M 10(-9) 10 M, and 10(-10) M), and RANKL mRNA (messenger RNA) expression was measured by semiquantitative RT-PCR. Our results show that T3 concentrations used did not significantly enhance RANKL expression compared to controls without hormone treatment. This data suggests that other mechanisms, unrelated to the RANK/RANKL system, might be to activate osteoclast differentiation in these cells.

Le progrès technique chez Joan Robinson : un essai de systématisation et de formalisation

This paper deals with Joan Robinson's contributions to the issue of technical progress and her attempts of treating this subject in accordance to the Keynesian theory of employment and income distribution, mainly in the long run. This paper aims to review this aspect of her work and to establish a systematisation and a formalisation of her approach. At the same time the paper exposes the problems she faced - and did not always solve. Looking through her main contributions, the paper concludes that she used different criteria for the classification of innovations and that they depended on the specific situations described by the models in which she used the classification.

Technical Progress in Joan Robinson's View: An attempt at systematisation and formalisation

This paper deals with Joan Robinson's contributions to the issue of technical progress and her attempts at treating this subject in accordance with the Keynesian theory of employment and income distribution, mainly in the long run. The paper aims to review this aspect of her work and to establish a systematisation and a formalisation of her approach. At the same time, the paper exposes the problems she faced - but did not always solve. Looking through her main contributions, the paper concludes that she used different criteria for the classification of innovations and that they depended on the specific situations described by the models in which she used the classification.

La contaminación de los ríos y sus efectos en las áreas costeras y el mar

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Aprovechamiento de ríos y lagos: proyecto de resolución aprobado por el Comité II el 25 de mayo de 1957

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Antecedentes para el estudio de prefactibilidad acerca de la contaminación de la refinería de Esmeraldas en los ríos Teaone y Esmeraldas

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Informe del Seminario-Taller sobre el Análisis de la Contaminación de la Refinería Estatal Esmeraldas en los Ríos Esmeraldas y Teaone = Report of the Seminar-Workshop on the Analysis of the Pollution from the Esmeraldas State Refinery in the Esmeraldas and Teaone Rivers

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Daños ocasionados por el huracán Joan en Nicaragua: sus efectos sobre el desarrollo económico y las condiciones de vida, y requerimientos para la rehabilitación y reconstrucción: nota de la Secretaría = Damage caused by hurricane Joan in Nicaragua: its effects on economic development and living conditions, and requirements for rehabilitation and reconstruction: note by the Secretariat

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Daños ocasionados por el huracán Joan en Nicaragua: sus efectos sobre el desarrollo económico y las condiciones de vida, y requerimientos para la rehabilitación y reconstrucción: perfiles de proyecto de rehabilitación y reconstrucción = Damage caused by hurricane Joan in Nicaragua: its effects on economic development and living conditions, and rehabilitation and reconstruction needs: rehabilitation and reconstruction project outlines

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