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This chapter presents an overview of the Brazilian regional media groups that are characterized by cross-ownership of media outlets in the four main reference platforms for news coverage: daily print, radio, broadcast television, and Web.

The research uses institutional documents to explore the history and operating mode of the groups that own the 50 best-selling newspapers in the country. The theoretical approach is guided by the notion of “spatialization” applied to business communication by Vincent Mosco, and by the concepts of “region,” “regionality,” and “regionalization” based upon authors aligned with the critical thinking approach in the field of geography.

The study identifies the multiple geographical scales at which these groups operate, as well as their dominant business models and the sources of their owners’ capital. Based on this analysis, it argues that the variables which are applied to the large-circulation media at a national level cannot be automatically transferred to the regional and local levels.

The study of regional media reveals a landscape that has not received adequate attention from communications researchers worldwide. It also points to problems which deserve more investigation and elaboration. This represents a new challenge for media studies, for the political economy of communication, and for the nascent field of geography of communication.

This chapter provides a distinctive and nuanced approach to the Brazilian media system. It can inspire other studies on regional communication which take into account the specificities of their geographic scales.

How do European policymakers and media companies react to the AOL‐TimeWarner merger? In this short provocation, Marsden asks whether the successful coupling of the world’s largest ISP and media content creator signal le defi americain in communications, for Europe and the rest of the world? In particular, he questions whether market actors should be permitted a similar role in Europe. In competition policy terms, the question is whether creation of economies of scale and scope, particularly through vertical integration between carriers and content providers, now causes increasing redundancy of media‐specific ownership laws at a national level in favour of European industrial policy? The outflanking policy trend is demonstrated specifically in the merger of Vodafone‐Mannesmann, and the content alliances formed with Vivendi, and between Vodafone, Vivendi and variously BSkyB and Manchester United. Even if symbolic debate continues to give primacy to democratic principle, European public policy may switch poles, from denying concentration of media on democratic principle of pluralism of ownership, to encouraging European champions to compete with the Americans. This convergence debate will centrally occupy policymakers, with new national legislation and Commission Directives in all probability preceded by critical merger decisions by the Competition Directorate.

An indirect electrochemical reduction and dyeing with indigo were carried out here to solve problems of low dye reduction rate and poor dyeing depth in the current electrochemical dyeing process.

Response surface analysis tests were performed to evaluate the effects of ferrous sulfate concentration, medium concentration, sodium hydroxide concentration and reduction time on the reduction efficiency of indirect electrochemical reduction of indigo.

The conditions obtained by design-expert optimization showed that the concentration of FeSO₄·7H₂O has the most significant effect on the reduction performance of dye liquor. Under the optimized electrochemical reduction dyeing process, the rate of dye reduction could be reached 91.21 per cent and the K/S value of indirect electrochemical dyeing of indigo can be achieved to 12.96, which is increased by about 9.56 per cent compared with that of Na₂S₂O₄ dyeing with the same color fastness basically.

The recyclability and biodegradability of the dye remain to be explored.

The strategy presented here can be developed to replace a substantial part of electrochemical dyeing with optimized product quality and reduced environmental pollution in denim production.

The strategy presented here can be developed to replace a substantial part of electrochemical dyeing with optimized product quality and reduced environmental pollution in denim production.

Application of the Fe(II)-DGS-Abal B complex media system in the indirect electrochemical reduction of indigo.

The purpose of this paper is to study the effects of chemical reaction on mixed convection flow along a sphere in non‐Darcian porous media.

The sphere surface is maintained at uniform temperature and species concentration for both cases of heated (assisting flow) and cooled (opposing flow) sphere. An appropriate transformation is employed and the transformed equations are solved numerically using an efficient implicit iterative tri‐diagonal finite difference method.

It is found that chemical reactions have significant effect on heat and mass transfer. Comparisons with previously published work are performed and the results are found to be in excellent agreement.

The paper is original and describes how a parametric study of the physical parameters was conducted and illustrates graphically a representative set of numerical results for the velocity, temperature, and concentration profiles, as well as the local skin‐friction coefficient, local wall temperature, and local wall concentration, to show interesting features of the solutions.

The surface roughness of additively manufactured parts is usually found to be high. This limits their use in industrial and biomedical applications. Therefore, these parts required post-processing to improve their surface quality. The purpose of this study is to finish three-dimensional (3D) printed acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) parts using abrasive flow machining (AFM).

A hydrogel-based abrasive media has been developed to finish 3D printed parts. The developed abrasive media has been characterized for its rheology and thermal stability using sweep tests, thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The ABS and PLA cylindrical parts have been prepared using fused deposition modeling (FDM) and finished using AFM. The experiments were designed using Taguchi (L9 OA) method. The effect of process parameters such as extrusion pressure (EP), layer thickness (LT) and abrasive concentration (AC) was investigated on the amount of material removed (MR) and percentage improvement in surface roughness (%ΔR_a).

The developed abrasive media was found to be effective for finishing FDM printed parts using AFM. The microscope images of unfinished and finished showed a significant improvement in surface topography of additively manufactures parts after AFM. The results reveal that AC is the most significant parameter during the finishing of ABS parts. However, EP and AC are the most significant parameters for MR and %ΔR_a, respectively, during the finishing of PLA parts.

The FDM technology has applications in the biomedical, electronics, aeronautics and defense sectors. PLA has good biodegradable and biocompatible properties, so widely used in biomedical applications. The ventilator splitters fabricated using FDM have a profile similar to the shape used in the present study.

The present study is focused on finishing FDM printed cylindrical parts using AFM. Future research may be done on the AFM of complex shapes and freeform surfaces printed using different additive manufacturing (AM) techniques.

An abrasive media consists of xanthan gum, locust bean gum and fumed silica has been developed and characterized. An experimental study has been performed by combining printing parameters of FDM and finishing parameters of AFM. A comparative analysis in MR and %ΔR_a has been reported between 3D printed ABS and PLA parts.

The purpose of this study is to investigate starch mucor (SM) in potassium iodide (KI) as corrosion inhibitor of aluminium in hydrochloric acid (HCl) medium.

The SM in KI was characterized by gravimetric, scanning electron microscopy, electrochemical impedance spectroscopy measurements, potentiodynamic polarization and gas chromatography-mass spectrometer techniques. The inhibition efficiency was optimized using response surface methodology.

The result revealed that the inhibitor inhibited corrosion at a low concentration with the rate of inhibition increasing as the concentration of the inhibitor increased. The inhibition efficiency increases as the temperature was increased with slight incorporation of the inhibitor (SM in KI). This indicates that the corrosion control is both inhibitor (SM in KI) and temperature dependent.

The research results can provide the basis for using SM in KI as corrosion inhibitor of aluminium in HCL medium. Mixed-type inhibitor nature of SM was proved by cathodic and anodic nature of the polarization curves.

The chapter addresses the unique aspects of Brazil’s news agencies and the Brazilian news syndication market. It reveals the pattern of Brazil’s two prevailing business models regarding the wire services industry: that of the State, particularly the federal government, which invested little in a nationwide distributor to peripheral and alternative media; and that of major media conglomerates, which set out their syndication services labeled as “news agencies” in order to multiply profits with no extra labor. In the latter case, an asymmetrical relationship of dependency and circularity ensues between these major conglomerates and regional media groups, who rely on these “news agencies” to perpetuate their dominance in local markets. The chapter also assesses a few causes for this unique model and describes the main players in Brazil’s news agency sector. A concise historical background is presented (Molina, Morais, Saroldi & Moreira) and provides context for the present-day players in the news agency business in Brazil, including the institutional framework they form with their customers, predominantly smaller newspapers. The chapter analyzes attributes of the Brazilian news agency ecology, including the parallel reach of distribution networks belonging to the private and state-owned agencies; the adaptation of conglomerate agencies to challenges entailed by the digital convergence (shrinking newsrooms, multitasking staff); and the prevalence of the interconglomerate model within the Brazilian news syndication industry.

Purpose – It may be time to reformulate the rejection of censorship. Freedom is not the only opposite of, strategic resource against, or antidote to, censorship. Methodology/Approach – This chapter argues against censorship with a Kantian-normative approach (the deontological position of the categorical imperative), using conceptual analysis, constructivism, and international legal scholarship, from the standpoint of a humanity-wide duty to safeguard and promote cultural diversity and biodiversity. Increasingly visible weaknesses of the argument against censorship from the utilitarian standpoint of freedom, a negative argument, can be avoided in this way. Findings – Especially the neoliberal approach to freedom has no provisions against corporate and only little against copyright censorship, which are both becoming increasingly acute. Diversity, on the other hand, both biological and cultural, is argued to be instrumentally good, and intrinsically good, but the latter only if balanced by equality of basic rights. Originality/Value – The resulting moral and legal imperatives are to support, safeguard, and promote diversity, and thus to minimize both censorship in culture and selection/elimination in nature, but only to minimize them, simply because they cannot themselves be eliminated. It is impossible to eliminate elimination. This becomes clear when one considers self- and soft censorship. At least in the wide sense, censorship is inevitable – but sustainable development is impossible without strict minimization of censorship.