Estimativas mensais da formação bruta de capital fixo pública no Brasil (2002-2010)

This article presents new monthly estimates of the gross fixed capital formation of the Brazilian general government for the 2002-2010 years. A significant research effort was made to carry out the estimations. First, the many differences between the concepts of "public investment" (as used in the Brazilian public accounting manuals) and "gross fixed capital formation of the general government" (as used in the United Nations System of National Accounts) were carefully identified, and so were the peculiarities of the Brazilian budget process that distort official estimates of the annual gross fixed capital formation of the Brazilian general government and affect the precision of naive estimates of the same variable in higher frequencies. Second, several procedures were developed to correct or mitigate these problems. Finally, additional information was obtained from 20 out of 26 Brazilian states, the federal district, and tens of (large) municipalities in order to allow us to circumvent the relative scarcity of information on the finances of Brazilian state and local governments.Este artigo apresenta estimativas inéditas de séries mensais da formação bruta de capital fixo (FBCF) das administrações públicas no Brasil de 2002 a 2010. A estimação exigiu um esforço significativo de pesquisa. Em primeiro lugar, realizou-se uma análise criteriosa dos conceitos da contabilidade pública e da contabilidade nacional, enfatizando-se as peculiaridades do processo orçamentário brasileiro que enviesam as estimativas anuais dos investimentos públicos divulgadas nas estatísticas oficiais e que afetam a precisão das informações de alta frequência. Em segundo lugar, desenvolveram-se procedimentos para mitigar estes problemas. Por fim, buscou-se contornar a escassez de informações dos governos subnacionais solicitando-se informações adicionais de centenas de contadores públicos, técnicos ou secretários de Fazenda/Planejamento de todos os estados da Federação, do Distrito Federal (DF) e dos maiores municípios

A circular economy virtuous example-use of a stabilized waste material instead of calcite to produce sustainable composites

This work reports and analyzes the mechanical properties of some composites obtained using stabilized waste with epoxy resins E-227. For comparison, correspondent composite samples were realized using calcite as a filler. The recovered stabilized waste was obtained by means of a new method to stabilize municipal solid waste incineration (MSWI) fly ash (FA), based on the use of bottom ash (BA). The aim of this paper is to show that the stabilization process, which can be considered a zero-waste treatment, produces inert materials, that can be reused as a filler. The production of new filler was made on a pilot plant, designed to verify the transferability of the proposed stabilization technology. Mechanical analysis revealed that flexural modulus raises by increasing the filler content around 30% wt, independently of filler type, stabilized sample or calcium carbonate. Mechanical properties are lower in the samples with the high amount of filler due to the crowding effect. The morphology of composite materials showed a non-homogeneous dispersion of particles in stabilized sample filler, characterized by large particle agglomerates. Finally, according to the ESCAPE simplified method, the obtained composites result more sustainable in comparison with the corresponding ones produced by using natural resources (like calcite). These findings open new possibilities for the reuse of the stabilized material, in frame of circular economy principles, with environmental and economic advantage

Compositional, microbiological, biochemical and volatile profile characterisation of Italian non-conventionally ripened cheese varieties

International audienc

Speed choice by drivers: The issue of driving too slowly

Quite correctly, the majority of road safety speeding initiatives focus on drivers travelling at excessive speeds. This study, however, focused on the potential problem of driving too slowly. Six thousand, four hundred and eighty vehicles from around the Perth metropolitan area in Western Australia had their speeds recorded; observations were also made of these vehicles to identify characteristics of the driver and vehicle. In addition, a community survey with 240 members of the public was conducted to examine their attitudes towards slow drivers. As expected, results showed that older drivers drove more slowly than the other age brackets, women drove more slowly than men. and that heavily laden vehicles drove more slowly than other types of vehicles. Additionally, the slowest days were weekdays and the quickest were Saturdays. Community attitudes, generally mirrored the observational findings, and indicated that the public believed that slow driving was sometimes a safety problem causing some accidents. These data are discussed, and some possible countermeasures are briefly introduced to address the problem