RESUMO O artigo se situa no âmbito das discussões contemporâneas que desafiam a sociologia econômica e a sociologia do trabalho a refletir sobre um novo fenômeno socioeconômico: a chegada de sindicalistas no mercado financeiro, via criação e, sobretudo, a gestão de fundos de pensão. Atores sociais da construção deste novo fenômeno financeiro, os sindicalistas passam a (re)significar não somente suas estratégias, mas também seus discursos, agregando questões morais e sociais aos interesses do mercado. O trabalho demonstra que o novo éthos do sindicalismo brasileiro busca utilizar a própria lógica do capital na resistência contra a financeirização da economia e a reestruturação produtiva.

ABSTRACT The article is part of contemporary discussions that challenge economic sociology and the sociology of work to reflect on a new socioeconomic phenomenon: the arrival of trade unionists in the financial market, through creation and, above all, the management of pension funds. Social actors of the construction of this new financial phenomenon, unionists come to (re)signify not only their strategies, but also their speeches, adding moral and social questions to the interests of the market. The work demonstrates that using the logic of capitalism itself in the fight against financialization of the economy and the productive restructuring would be the new ethos of Brazilian unionism.

ABSTRACT Currently, agricultural productivity and sustainable development are the desired bases for the creation of production systems. Farming for greater production and the efficient use of soil resources are at the core of modern systems. However, the way in which agricultural management and practices can change soil quality has become increasingly important. The aim of this study was to detect changes in soil biological properties caused by implementation of the integrated crop-livestock-forest system (iCLF) and to identify the properties suitable for detecting changes in soil biological quality. Soil samples were collected from the 0.00-0.10 m layer in Nova Canaã do Norte, MT, Brazil, and Cachoeira Dourada, GO, Brazil, in areas of the iCLF with 1 (iCLF1) or 3 (iCLF3) eucalyptus rows and in areas of recovered and degraded pasture. In Cachoeira Dourada, in the iCLF1, samples were taken in the tree row and at 2.5, 5.0, and 10.0 m from this row. In Nova Canaã in the iCLF3, samples were taken in the center row and at 3.0, 6.0, 9.0, and 12.0 m from this row. In Cachoeira Dourada, samples were taken in the center row and at 1.5, 3.0, 4.5, 6.0, and 9.0 m from this row. All samples had five replicates. In Nova Canaã, the iCLF1 caused less disturbance in the microbial population than the degraded pasture, which was evidenced by the lower metabolic quotient and basal respiration. The sampling position in relation to the tree row had little effect on comparison of the iCLF with the degraded pasture in regard to soil biological properties. Carbon and N of the microbial biomass and the microbial quotient were the best properties for differentiating the iCLF from the degraded pasture. ICLFs have not yet led to improvements in soil biological quality in relation to the degraded pasture.

Estradas não pavimentadas correspondem a aproximadamente 90% da malha rodoviária brasileira. Estas, na maioria das vezes, são construídas sem a realização de estudos prévios, estando sujeitas a vários tipos de problemas. Um dos principais fatores de deterioração dessas vias é a ineficiência do sistema de drenagem. Neste trabalho simulou-se o espaçamento entre desaguadouros em estradas não pavimentadas, utilizando-se um software desenvolvido com base num modelo matemático de dimensionamento de sistemas de drenagem em estradas não pavimentadas. Utilizaram-se valores de erodibilidade, tensão crítica de cisalhamento e massa específica para diferentes solos de estradas, localizadas no Estado de Goiás. Simularam-se cenários considerando alterações na declividade (1, 5, 10 e 15%) e na seção transversal do canal com relações entre altura e largura de 1:1, 1:2, 1:5 e 1:10. O modelo respondeu sensivelmente às alterações na declividade, na seção transversal do canal e nas de resistência do solo. Os espaçamentos obtidos indicaram que, estradas com declividades inferiores a 5%, mesmo com elevados valores de erodibilidade permitiram espaçamentos viáveis em aspectos construtivos. No entanto, para as declividades de 10 e 15%, os espaçamentos, na maioria dos casos, apresentaram dimensões reduzidas, tornando-se impraticáveis, sendo necessário, nestes casos, proteção do canal ou alteração de suas características hidráulicas.

Unpaved roads correspond to approximately 90% of Brazilian's highway. In most cases they are built without previous studies should be subject to a many problems. In this work was simulated unpaved roads ditch outlet spacing, using a software to design roads drainage system. It was used erodibility, critical shear stress and density values for different soils of roads located in the state of Goias, Brazil. Were simulated different scenarios considering changes in slope (1%, 5%, 10% and 15%) and in roads channel's cross section (1:1, 1:2, 1:5 and 1:10). The model answered favourably to slope and cross section of the channel and to soil resistance parameters. The spacing obtained indicated that roads with slopes of less than 5%, even high levels of erodibility allowed viable outlet spacing. However, 10% and 15% slopes presented reduced spacing turning them impractical, and so requiring channel protection or changes of the hydraulics features.