Class inequality and capital accumulation in Brazil, 1992-2013

Abstract This article explores the patterns of class inequality and capital accumulation in Brazil, showing the drivers and limits of the decline in inequality that occurred during the Workers’ Party governments. It proposes that minimum wage hikes and greater social security changed the demand pattern and kick-started a cumulative causation process. Growth and redistribution thus reinforced each other for a period, and then spelled their own limits. As growth accelerated in the 2000s, a Gini decomposition indicates that class inequality decreased, but confined to changes between workers—capitalist income and social stratification were preserved. This also endogenously led to a regressive structural change, as low-productivity, labour-intensive services grew and international trade patterns worsened. This created a medium-term dependence on commodity prices for balance-of-trade solvency, and heightened cost-push inflation, which could not be overcome under the limited policy framework in place. The constrained basis for reducing inequality and the regressive structural change underscore that developmental strategies requires broad, multi-dimensional inequality-reducing measures and an encompassing catching-up project.CAPES, grant BEX 0840/14-

Profits and Fractal Properties: Notes on Marx, Countertendencies and Simulation Models

© 2017 Informa UK Limited, trading as Taylor & Francis Group. There are new reasons for revisiting Marx’s elaboration on the rate of profit because contemporary debates provide findings from the MEGA Project, long-term data on the rate of profit, and tools for dealing with complexity and non-equilibrium systems. This article proposes that the interplay between the tendency and the countertendencies of the rate of profit to fall can be translated into a simple system of equations, one based on each chapter of Section Three of Capital—as if Marx sought to mathematically formalise his insights. This article reviews previous debates, presents data and runs a simulation model, showing that the rate of profit behaves as fractals.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil), grant (BEX 0840/14-9

The Limits of Pragmatism: The Rise and Fall of the Brazilian Workers’ Party (2002–2016)

Under favorable external circumstances, the pragmatic political and economic strategy of Brazil’s Partido dos Trabalhadores (Workers’ Party—PT) helped to secure short-term political stability, boosted growth, and supported an unprecedented distribution of income. However, it also meant that the PT had to accommodate to rather than transform the constraints on growth in Brazil and that stability would involve unwieldy political alliances preventing deeper reforms. When it was confronted with deteriorating global economic conditions and increasingly ineffectual economic policies, the PT’s strategy immobilized the party, facilitated the dissolution of its base of support, and expedited its ouster from power. The Brazilian experience suggests that political pragmatism can, within limits, support progressive economic change but that the outcomes depend heavily on external circumstances and the stability of the political coalitions supporting the administration. Em circunstâncias externas favoráveis, a pragmática estratégia política e econômica do Partido dos Trabalhadores (PT) ajudou a assegurar a estabilidade política no curto prazo, impulsionou o crescimento e apoiou uma distribuição de renda sem precedentes. No entanto, isso também significou que o PT teve que se acomodar a, em vez de transformar, as restrições ao crescimento no Brasil, e que a estabilidade envolveria alianças políticas comprometedoras, impedindo reformas mais profundas. Quando foi confrontada com a deterioração das condições econômicas globais e apresentando políticas econômicas cada vez mais ineficazes, a estratégia do PT imobilizou o partido, facilitou a dissolução de sua base de apoio e acelerou sua saída do poder. A experiência brasileira sugere que o pragmatismo político pode, dentro de certos limites, apoiar a mudança econômica progressista, mas que os resultados dependem muito das circunstâncias externas e da estabilidade das coalizões políticas que apóiam a administração. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil), grant (BEX 0840/14-9

A network model for the complex behavior of the rate of profit: Exploring a simulation model with overlapping technological revolutions

This article proposes a network model to replicate the behaviour of the profit rate in the long run. Specifically, it accounts for the results of an empirical investigation of the profit rate in the US, which show that it has fractal properties and its complexity changes over time. The starting point of the model is Marx’s insights on the interplay between the tendency of the rate to fall and its countertendencies. It combines these insights with the persistent generation of new commodities – inventions – and a specific set of new branches of production that triggers technological revolutions. A simulation running this network model successfully replicates historical features of the system.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil), grant (BEX 0840/14-9

Black coal, thin ice: the discursive legitimisation of Australian coal in the age of climate change

AbstractDespite mounting urgency to mitigate climate change, new coal mines have recently been approved in various countries, including in Southeast Asia and Australia. Adani’s Carmichael coal mine project in the Galilee Basin, Queensland (Australia), was approved in June 2019 after 9 years of political contestation. Counteracting global efforts to decarbonise energy systems, this mine will substantially increase Australia’s per capita CO2 emissions, which are already among the highest in the world. Australia’s deepening carbon lock-in can be attributed to the essential economic role played by the coal industry, which gives it structural power to dominate political dynamics. Furthermore, tenacious networks among the traditional mass media, mining companies, and their shareholders have reinforced the politico-economic influence of the industry, allowing the mass media to provide a venue for the industry’s outside lobbying strategies as well as ample backing for its discursive legitimisation with pro-coal narratives. To investigate the enduring symbiosis between the coal industry, business interests, the Australian state, and mainstream media, we draw on natural language processing techniques and systematically study discourses about the coal mine in traditional and social media between 2017 and 2020. Our results indicate that while the mine’s approval was aided by the pro-coal narratives of Queensland’s main daily newspaper, the Courier-Mail, collective public sentiment on Twitter has diverged significantly from the newspaper’s stance. The rationale for the mine’s approval, notwithstanding increasing public contestation, lies in the enduring symbiosis between the traditional economic actors and the state; and yet, our results highlight a potential corner of the discursive battlefield favourable for hosting more diverse arguments.</jats:p

Simultaneous sleep study and nasoendoscopic investigation in a patient with obstructive sleep apnoea syndrome refractory to continuous positive airway pressure: a case report

<p>Abstract</p> <p>Introduction</p> <p>The standard treatment for obstructive sleep apnoea syndrome is nasal continuous positive airway pressure. In most cases the obstruction is located at the oropharyngeal level, and nasal continuous positive airway pressure is usually effective. In cases of non-response to nasal continuous positive airway pressure other treatments like mandibular advancement devices or upper airway surgery (especially bi-maxillary advancement) may also be considered.</p> <p>Case presentation</p> <p>We report the case of a 38-year-old Caucasian man with severe obstructive sleep apnoea syndrome, initially refractory to nasal continuous positive airway pressure (and subsequently also to a mandibular advancement devices), in which the visualization of the upper airway with sleep endoscopy and the concomitant titration of positive pressure were useful in the investigation and resolution of sleep disordered breathing. In fact, there was a marked reduction in the size of his nasopharynx, and a paresis of his left aryepiglotic fold with hypertrophy of the right aryepiglotic fold. The application of bi-level positive airway pressure and an oral interface successfully managed his obstructive sleep apnoea.</p> <p>Conclusion</p> <p>This is a rare case of obstructive sleep apnoea syndrome refractory to treatment with nocturnal ventilatory support. Visualization of the endoscopic changes, during sleep and under positive pressure, was of great value to understanding the mechanisms of refractoriness. It also oriented the therapeutic option. Refractoriness to obstructive sleep apnoea therapy with continuous positive airway pressure is rare, and each case should be approached individually.</p

Probabilistic fire spread forecast as a management tool in an operational setting

Background: An approach to predict fire growth in an operational setting, with the potential to be used as a decision-support tool for fire management, is described and evaluated. The operational use of fire behaviour models has mostly followed a deterministic approach, however, the uncertainty associated with model predictions needs to be quantified and included in wildfire planning and decision-making process during fire suppression activities. We use FARSITE to simulate the growth of a large wildfire. Probabilistic simulations of fire spread are performed, accounting for the uncertainty of some model inputs and parameters. Deterministic simulations were performed for comparison. We also assess the degree to which fire spread modelling and satellite active fire data can be combined, to forecast fire spread during large wildfires events. Results: Uncertainty was propagated through the FARSITE fire spread modelling system by randomly defining 100 different combinations of the independent input variables and parameters, and running the correspondent fire spread simulations in order to produce fire spread probability maps. Simulations were initialized with the reported ignition location and with satellite active fires. The probabilistic fire spread predictions show great potential to be used as a fire management tool in an operational setting, providing valuable information regarding the spatial–temporal distribution of burn probabilities. The advantage of probabilistic over deterministic simulations is clear when both are compared. Re-initializing simulations with satellite active fires did not improve simulations as expected. Conclusion: This information can be useful to anticipate the growth of wildfires through the landscape with an associated probability of occurrence. The additional information regarding when, where and with what probability the fire might be in the next few hours can ultimately help minimize the negative environmental, social and economic impacts of these firesinfo:eu-repo/semantics/publishedVersio

Periodontitis and diabetes: a two-way relationship

Periodontitis is a common chronic inflammatory disease characterised by destruction of the supporting structures of the teeth (the periodontal ligament and alveolar bone). It is highly prevalent (severe periodontitis affects 10–15% of adults) and has multiple negative impacts on quality of life. Epidemiological data confirm that diabetes is a major risk factor for periodontitis; susceptibility to periodontitis is increased by approximately threefold in people with diabetes. There is a clear relationship between degree of hyperglycaemia and severity of periodontitis. The mechanisms that underpin the links between these two conditions are not completely understood, but involve aspects of immune functioning, neutrophil activity, and cytokine biology. There is emerging evidence to support the existence of a two-way relationship between diabetes and periodontitis, with diabetes increasing the risk for periodontitis, and periodontal inflammation negatively affecting glycaemic control. Incidences of macroalbuminuria and end-stage renal disease are increased twofold and threefold, respectively, in diabetic individuals who also have severe periodontitis compared to diabetic individuals without severe periodontitis. Furthermore, the risk of cardiorenal mortality (ischaemic heart disease and diabetic nephropathy combined) is three times higher in diabetic people with severe periodontitis than in diabetic people without severe periodontitis. Treatment of periodontitis is associated with HbA1c reductions of approximately 0.4%. Oral and periodontal health should be promoted as integral components of diabetes management