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This work presents a topology optimization methodology for designing microarchitectures of phononic crystals. The objective is to get microstructures having, as a consequence of wave propagation phenomena in these media, bandgaps between two specified bands. An additional target is to enlarge the range of frequencies of these bandgaps.

The resulting optimization problem is solved employing an augmented Lagrangian technique based on the proximal point methods. The main primal variable of the Lagrangian function is the characteristic function determining the spatial geometrical arrangement of different phases within the unit cell of the phononic crystal. This characteristic function is defined in terms of a level-set function. Descent directions of the Lagrangian function are evaluated by using the topological derivatives of the eigenvalues obtained through the dispersion relation of the phononic crystal.

The description of the optimization algorithm is emphasized, and its intrinsic properties to attain adequate phononic crystal topologies are discussed. Particular attention is addressed to validate the analytical expressions of the topological derivative. Application examples for several cases are presented, and the numerical performance of the optimization algorithm for attaining the corresponding solutions is discussed.

The original contribution results in the description and numerical assessment of a topology optimization algorithm using the joint concepts of the level-set function and topological derivative to design phononic crystals.

This chapter is about an analysis and reflection on the actions, programs, and regulatory frameworks of the Mexican government for the promotion of entrepreneurial activity during the twentieth century. A documentary review is presented based mainly on the presidential reports available in the virtual legal library of the National Autonomous University of Mexico, the Center for Documentation, Information, and Analysis of the Chamber of Deputies (Cámara de Diputados), and various publications of experts on economic history, considering the twentieth century: from the year 1900 with the end of the Porfiriato until the six-year term of Ernesto Zedillo that ended in 2000. The public policies of these 100 years were reviewed and based on this, was analyzed the importance assigned to the creation, development, and consolidation of companies and their importance in public policies. Special emphasis is given to instruments for the creation of new businesses or the development and strengthening of small- and medium-sized enterprises.

This paper aims to examine the relationship between research and development (R&D) intensity and innovative performance and R&D intensity as a moderating variable in the relationship between sources of information and innovative performance.

This is a quantitative, nonexperimental, cross-sectional study of the data collected from national surveys of innovation activities from Ecuador, Peru and Chile where the investigation was carried out. A bivariate probit regression was applied.

The results of the investigation pinpoint that R&D intensity is positively related to the innovation of products and processes in Ecuador and Peru. However, no relationship was found in Chile. As a moderating variable of the information sources (customers, suppliers and competitors), and the innovation of products and processes, it shows different results in the three countries examined.

This study contributes to the literature with evidence in countries with low rates of investment in R&D in the countries examined, this relationship does not always exist; this relationship is considered to be dependent on the complexity of the knowledge and internal capabilities of the company required to achieve innovation, and this complexity could vary according to the type of manufacturing and technology level of the companies. Thus, in manufacturing companies of less complexity to achieve the necessary knowledge for innovation, low rates of investment in R&D are sufficient for the relationship to exist.

By increasing their R&D intensity, companies acquire technology and develop internal skills and capabilities that boost their innovative potential. Nevertheless, it is not enough to increase R&D intensity to take advantage of external sources of information, it is also necessary to boost the absorptive capacity to assimilate and take advantage of external knowledge.

This study contributes to the scarce evidence that exists, on the literature in developing countries, on the effect of R&D intensity on innovative performance and provides evidence of R&D intensity as a moderating variable of the relationship between sources of information and innovative performance.

Taking as reference a sample of around a hundred biographical materials on entrepreneurs in Mexico and Colombia, the purpose of this chapter is dual. Both to show the relevance and varied modalities that the biographical approach has enjoyed in business history research since the 1990s, and to display the intrinsic potential this modality of scholarship entails for entrepreneurship endeavors. In particular, it discusses the prospects to incorporate this body of empirical works into the large Latin American audience attending undergraduate, graduate and executive education programs in business, economic history and related fields. The chapter is organized into three sections. The first two are devoted to illustrate relevant patterns in the entrepreneurial trajectory of individuals and entrepreneurial families studied in each of the two countries under consideration. The last section identifies some conceptual issues that may impact current debates on Latin American business development as exemplified in recent business and economic history journal venues and scholarly conferences.

This chapter's objective is to analyze, with a long-term perspective, the formation of an entrepreneurial culture in Mexico's Midwest, specifically in the state of Jalisco, in terms of the geographical environment, the culture in general, and the local economic institutions that, when viewed interconnectedly, will globally impact the practices, representations, and imaginaries of persons who at a given time have made the decision to undertake profitable economic activities – individual and collective entrepreneurs, in other words. To this end, we have divided the text into two sections. In the first, we conceptually review what we understand as entrepreneurial culture; in principle, we deconstruct its terms and then conjugate them from a social science perspective. We also emphasize the importance of studying the milieu as a scenario of action with different arenas, where a variety of agents have been involved. In the second part, without sidelining conceptual analysis, we present concrete empirical evidence of the role played by culture and local economic institutions that shape entrepreneurial culture in Midwestern Mexico over time, specifically in Jalisco. The text ends with some final considerations.

This paper presents a comparative analysis of artwork produced in the context of social movements waged by Mexicans and Chicanos (U.S. inhabitants of Mexican descent) during the two decades between the mid-1960s and the mid-1980s. Despite the fact that activists in these movements shared many elements of Mexican culture and history, were part of the same generation of radical social movements born in the 1960s, and experienced some significant interchange among movement participants from each side of the U.S.-Mexico border, an examination of movement art reveals significant differences in key elements of the movements’ collective identity and expression of political citizenship. Analysis of the artwork also highlights different aesthetic choices made by movement artists, particularly with regard to the deployment of formal elements associated with the “Mexican School” of art made famous by artists associated with the Mexican Revolution of the early 20th century. Variations in the representational strategies developed by movement artists reflect the distinct relationship of movement constituents in Mexico and the U.S. to each nation's prevailing regimes of accumulation and modes of regulation. The analysis is based on an examination of 374 pieces of art.

The purpose of this paper is to examine the role played by the visual arts in expressing and shaping the nation brand. In doing so, it establishes the centrality of visual discourse in nation branding; illustrating that discursive strategies can directly alter the nation brand’s perception.

This single case study drawing on in-depth interviews, field observation and secondary/historical material, applies mediated discourse analysis and critical discourse analysis to capture a transitional period in the cultural policies and nation branding rhetoric across a time frame of 60 years.

This study establishes the visual arts as a significant carrier of meaning, thus reflecting changes in the national discourse. This analysis illustrates that publicly supported visual arts can articulate policy aspirations and provide insight into the power of competing national discourse which co-exists, thereby shaping the internal and external nation brand.

The study focuses on the visual arts and the context of Venezuela. Future research could expand this to look at the visual arts in other national or regional contexts.

The paper establishes visual art as central to expressing national identity and policy, and a tool for examination of national identity and policy. More broadly, the paper establishes public support for the (visual) arts as central to nation-branding projects providing insight for those engaged in such campaigns to prioritize arts funding.

The authors’ study indicates the marketing relevance of visualization of the nation through the arts and establishes the visual arts as a central tenant of the nation brand.

The Revolution is 50, Raúl has succeeded Fidel, and many dissidents who participated in the 2002 Varela Project initiative are in jail. What hope for “cambio” (change) in Cuba? Legal dissent – constitutional proposals, a legislative agenda, and grassroots civil rights organizing – may be the key. The Movimiento Cristiano Liberación (MCL), led by the Nobel Peace Prize-nominated Oswaldo Payá, presents the strongest challenge to the power of Cuba's 50-year-old Revolutionary government. This dissident group is at the heart of the development of the 2002 Varela Project and forms the core of the leaders arrested in the 2003 Cuban Spring crackdown. This paper traces the history of MCL's “legal dissent” strategy, from the evolution of the Varela Project to their development of an entire legislative agenda, crafted with nation-wide grassroots participation over the last six years since the crackdown. Using data from international NGO surveys conducted within Cuba, we analyze the strengths and weaknesses of the MCL's proposal vis-à-vis the political and economic concerns and interests of the broader population. Cuba's government seeks to consolidate its rule through its institutions, specifically, through the Cuban Communist Party. It remains to be seen whether the MCL's legal dissent strategy can successfully mobilize a broad segment of the Cuban population, and channel the political aspirations of reformers whose interests are not served under one-party rule.

This paper aims to evaluate how Argentina’s Financial Information Unit (Unidad de Información Financiera, FIU) has responded after detecting noncompliance with money laundering regulations. Specifically, it identifies the main lessons that can be drawn from analyzing the sanctions that the FIU imposed between 2016 and 2019.

The issues that this article outlines suggest the need for a substantial rethinking of Argentina’s anti-money laundering regulations. Based on an analysis of the size of sanctions and the time taken to impose them, the study suggests that the regulatory framework in Argentina fails to comply with the international standards that require the imposition of effective, proportionate and dissuasive sanctions.

This analysis suggests that there are serious issues regarding the regulation of the sanctions that Argentina’s FIU is responsible for imposing. Specifically, the way the exact amount of each fine is determined urgently needs to be redesigned. In other words, the system for establishing fines needs to take the fluctuations that are typical of Argentina’s economy into account.

This paper has demonstrated that it is vital for the country to review its regulatory framework for the prevention of money laundering and to effectively apply sanctions when noncompliance is detected. A successful approach to both objectives will contribute to generate and align incentives to improve compliance levels and to fulfill international standards.