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Since the 1990s, growing interest in the relationship between clusters and economic growth has highlighted the importance of understanding their internal structures and life cycles. Still, the mechanisms underlying cluster emergence remain largely unknown, especially regarding the influence of public policies in this initial stage. This paper examines the emergence of a metalworking cluster in the Spanish steelmaking pole of Asturias, focusing on Francoist industrial policy and the regime’s relationship with regional firms.
Findings indicate that Asturias presented favorable conditions for cluster formation since the late eighteenth century. However, only the establishment of the national steelmaking champion Ensidesa in 1950 triggered the appearance of self-reinforcing dynamics, finally boosting the cluster’s emergence. This process resulted from the indirect externalities generated by the steel industry and was never part of the Francoist industrial agenda. Despite the recognized sector’s potential, the regime prioritized strategic base industries and systematically ignored calls for direct support for metalworking firms.
We investigate the convective stability of a thin, infinite fluid layer with a rectangular cross-section, subject to imposed heat fluxes at the top and bottom and fixed temperature along the vertical sides. The instability threshold depends on the Prandtl number as well as the normalized flux difference ($f$) and decreases with the aspect ratio ($\epsilon$), following a $\epsilon f^{-1}$ power law. Using a three-dimensional (3-D) initial value and two-dimensional eigenvalue calculations, we identify a dominant 3-D mode characterized by two transverse standing waves attached to the domain edges. We characterize the dominant mode’s frequency and transverse wavenumber as functions of the Rayleigh number and aspect ratio. An analytical asymptotic solution for the base state in the bulk is obtained, valid over most of the domain and increasingly accurate for lower aspect ratios. A local stability analysis, based on the analytical base state, reveals oscillatory transverse instabilities consistent with the global instability characteristics. The source term for this most unstable mode appears to be interactions between vertical shear and horizontal temperature gradients.
The dynamic nature and vast distances of exchange networks in the European Bronze Age are gradually being revealed through an increasing array of provenance studies. Here, the authors report the results of elemental and lead and copper isotope analyses of eight copper-based artefacts from a Middle to early Late Bronze Age settlement in Möriken-Wildegg (Switzerland’s Canton of Aargau). Diverse origins for the copper are identified, including the eastern and southern Alps and, potentially, Cyprus. Given their inconspicuous archaeological context, the authors argue that the objects from Möriken could suggest an influx of Cypriot copper into Central Europe around 1400 BC.
In July 2023, drag artist Pura Luka Vega’s Ama Namin (Our Father) performance in “Jesus drag” went viral across the Philippine archipelago. Many deemed Luka’s performance blasphemous, and they were declared persona non grata and imprisoned twice. This kanalization is a process where Christian fundamentalists, conservative publics, and state officials tag bakla (often conflated with being gay or transfeminine) as kanal (canal or sewer), deserving imprisonment and even death. By queering worship, bakla communities challenge anti-bakla regimes.
The employment of people with disabilities lags significantly behind the employment of people without disabilities. This article addresses the traditional means for increasing the employment of people with significant disabilities, primarily through anti-discrimination law and affirmative action efforts. It then argues that another effective means for increasing such employment is to expand and modernize an existing federal program that designates certain federal procurement contracts to employers that hire a required percentage of people with significant disabilities.
Akira Takayama’s McDonald’s Radio University (2017) transforms McDonald’s fast-food restaurants into auditory and affective performance spaces for collective reflection and sociopolitical engagement. Migrant “professors,” seated inside, deliver lectures via portable radios. Drawing from Brechtian radio theatre, Takayama foregrounds the ethics of listening, urging audiences to confront vulnerability and marginalization within noisy, unpredictable public spaces devoid of theatre’s protective distance.
The use of large Charonia seashells as labial vibration aerophones is documented in various cultures around the world. In Catalonia, north-eastern Iberia, 12 such instruments have been recovered from Neolithic contexts, dating from the second half of the fifth and the first half of the fourth millennia BC, yet they have received little attention in academia. Given that some examples retain the ability to produce sounds, their archaeoacoustic study offers insight into possible uses and meanings for Neolithic communities. While not all can still produce sounds, the high sound intensity of those that do may indicate a primary function as signalling devices that facilitated communication in Neolithic communities.
The use of ultrafiltration remains a subject of ongoing debate among pretreatment methods employed in radiocarbon dating of mammalian archaeological bone. However, such discourse had not previously extended to the archaeology of the Canary Islands (Spain), where detailed descriptions of laboratory processing methods for collagen purification often remain absent. Our study presents a case study involving a new set of radiocarbon dates obtained from the remains of ancient natives of Tenerife Island. For the first time in this region, we compared the results of ultrafiltered with non-ultrafiltered collagen from the same individuals, focusing on the method’s implications for dating accuracy in the Canaries. Through an examination of the cleaning protocols of ultrafilters and an assessment of the reliability of radiocarbon dating outcomes, we have found that ultrafiltration may influence the accuracy of results. However, given the additional handling required and the potential risk of contaminating the samples, its application should be carefully considered. In the context of the Canary Islands, ultrafiltration may be most relevant for samples associated with early human occupation, though further research is needed to assess its necessity across different biogeographical contexts. This communication further contributes to a broader understanding of preparation methods for radiocarbon dating bone from various environmental contexts, emphasizing the uniqueness of each case. Furthermore, we discuss the implications of our findings for archaeological research in the Canary Islands, highlighting the methodological gaps that persist in the region and underscoring the importance of ensuring the accuracy and reliability of chronological interpretations in archaeological investigations.
One possible strategy in dealing with the so-called “Adam Smith Problem” is to probe the architectural unity of his two major works, The Theory of Moral Sentiments and the Wealth of Nations. The architectural elements of a theory consist of premises and perspectives chosen, processes and mechanisms described, and results obtained. In this essay, I trace in the Wealth of Nations the architectural building blocks as known from The Theory of Moral Sentiments, by analogy, all the way up to the Impartial Spectator. The key challenge of this thought exercise is to not simply carry over the ethical categories of The Theory of Moral Sentiments to the Wealth of Nations, but to remain entirely within its economic framework. There is no explicit mention of the Impartial Spectator in the Wealth of Nations, but one can find his counterpart in connection with prudence, the dimmed-down self-regarding virtue that connects the two books and drives much of the action in the economic realm. Specifically, it is the long-sightedness of prudence, that is, the consideration of the consequences of one’s economic actions on oneself and others over a longer time-horizon, that allows for an analogy to the Impartial Spectator procedure. Just as the Impartial Spectator from The Theory of Moral Sentiments is the result of spinning off from one’s person an imagined disinterested, more objective judge of one’s conduct, the unnamed Long-sighted Spectator of the Wealth of Nations would be conjured up by the economic agent to ensure better judgment and sustainable economic behavior over time.
Periviable births, occurring between 20 and 25 weeks of gestation, present significant challenges due to varying survival rates and potential morbidities for survivors. Medical decision-making in this context raises ethical and legal questions, including considerations of sanctity of life versus quality of life and challenges in the clinician-parent relationship. This article outlines the complex ethical and legal landscape surrounding parental medical decision-making for periviable infants in the United States, discussing the evolution of federal and state laws. Existing laws highlight a vitalist approach that prioritizes life preservation despite potential harm and overlook non-heteronormative and non-traditional family structures, complicating decision-making. The impact of post-Dobbs state abortion bans on parental and clinician autonomy have exacerbated these challenges. We advocate for legislative support for inclusive definitions of legal parenthood to facilitate evidence-based decision-making centered on patients and families. Also needed are legal frameworks that accommodate the intricacies of periviable birth decisions while respecting patient autonomy and medical expertise, especially amidst the evolving legislative environment.