Abstract:Water lilies flourish in clusters and hormonally communicate together within their community. They can self-reproduce and have mobility across the water surface, being both earthed and waterborne. The capacities of water lilies are further evidence that plants require critical and cultural examination, as companion species, and that plants require an accompanying shift in human perception of their vegetal status. This paper addresses the feminist nature of the water lily and develops a connection between plant biology and the creation of models (...) for cultural practice, ethical living and a better understanding of plants. (shrink)

This book assembles recent research on memory and learning in plants. Organisms that share a capability to store information about experiences in the past have an actively generated background resource on which they can compare and evaluate coming experiences in order to react faster or even better. This is an essential tool for all adaptation purposes. Such memory/learning skills can be found from bacteria up to fungi, animals and plants, although until recently it had been mentioned only as capabilities of (...) higher animals. With the rise of epigenetics the context dependent marking of experiences on the genetic level is an essential perspective to understand memory and learning in organisms. -/- Plants are highly sensitive organisms that actively compete for environmental resources. They assess their surroundings, estimate how much energy they need for particular goals, and then realize the optimum variant. They take measures to control certain environmental resources. They perceive themselves and can distinguish between ‘self’ and ‘non-self’. They process and evaluate information and then modify their behavior accordingly. -/- The book will guide scientists in further investigations on these skills of plant behavior and on how plants mediate signaling processes between themselves and the environment in memory and learning processes. (shrink)

In this article, I will explore how the underlying research values of ‘openness’ and ‘mutual responsiveness’, which are central to open science practices, can be integrated into a new ethos of science. Firstly, I will revisit Robert Merton's early contribution to this issue, examining whether the ethos of science should be understood as a set of norms for scientists to practice ‘good’ science or as a set of research values as a functional requirement of the scientific system to produce knowledge, (...) irrespective of individual adherence to these norms. Secondly, I will analyse the recent codification of scientific practice in terms of ‘scientific integrity’, a framework that Merton did not pursue. Based on this analysis, and illustrated on the case of COVID-19 as a case in which the institution of science was challenged to deliver urgently on societal desirable outcomes, I will argue that promoting open science and its core norms of collaboration and openness requires broader governance of the institution of science in its relationship with society at large, rather than relying solely on self-governance within the scientific community through a new ethos of science. This conclusion has implications for re-evaluating research assessments, suggesting that the evaluation of the scientific system should take precedence over evaluating individual researchers, and that incentives should be provided to encourage specific research behaviour rather than solely focusing on individual research outputs. This article is followed up by Commentaries of Carl Mitcham, Alfred Nordmann, Sabina Leonelli, Lukas Fuchs, Monica Edwards-Schachter. (shrink)

The promotion of conservation agriculture for smallholders in sub-Saharan Africa is subject to ongoing scholarly and public debate regarding the evidence-base and the agenda-setting power of involved stakeholders. We undertake a political analysis of CA in Zambia that combines a qualitative case study of a flagship CA initiative with a quantitative analysis of a nationally representative dataset on agricultural practices. This analysis moves from an investigation of the knowledge politics to a study of how the political agendas of the actors (...) involved are shaping agrarian practices. From its initial focus on CA as soil conservation and sustainable agriculture, the framing of the initiative has evolved to accommodate shifting trends in the policy arena. In tandem with the increased focus on climate adaptation, we see an increased emphasis on private sector-led modernisation. The initiative has shifted its target group from the poorest smallholders to prospective commercial farmers, and has forged connections between its farmer-to-farmer extension network and private input suppliers and service providers. The link between CA and input intensification is reflected in national statistics as a significantly higher usage of herbicides, pesticides and mineral fertilizer on fields under CA tillage compared to other fields. We argue that the environmental and participation agendas are used to buttress CA as an environmentally and socially sustainable agricultural development strategy, while the prevailing practice is the result of a common vision for a private sector-led agricultural development shared between the implementing organisation, the donor and international organisations promoting a new green revolution in Africa. (shrink)

Purpose The purpose of this paper is to report on empirical work conducted to open up algorithmic interpretability and transparency. In recent years, significant concerns have arisen regarding the increasing pervasiveness of algorithms and the impact of automated decision-making in our lives. Particularly problematic is the lack of transparency surrounding the development of these algorithmic systems and their use. It is often suggested that to make algorithms more fair, they should be made more transparent, but exactly how this can be (...) achieved remains unclear. Design/methodology/approach An empirical study was conducted to begin unpacking issues around algorithmic interpretability and transparency. The study involved discussion-based experiments centred around a limited resource allocation scenario which required participants to select their most and least preferred algorithms in a particular context. In addition to collecting quantitative data about preferences, qualitative data captured participants’ expressed reasoning behind their selections. Findings Even when provided with the same information about the scenario, participants made different algorithm preference selections and rationalised their selections differently. The study results revealed diversity in participant responses but consistency in the emphasis they placed on normative concerns and the importance of context when accounting for their selections. The issues raised by participants as important to their selections resonate closely with values that have come to the fore in current debates over algorithm prevalence. Originality/value This work developed a novel empirical approach that demonstrates the value in pursuing algorithmic interpretability and transparency while also highlighting the complexities surrounding their accomplishment. (shrink)

The way Leibniz applied his philosophy to mathematics has been the subject of longstanding debates. A key piece of evidence is his letter to Masson on bodies. We offer an interpretation of this often misunderstood text, dealing with the status of infinite divisibility innature, rather than inmathematics. In line with this distinction, we offer a reading of the fictionality of infinitesimals. The letter has been claimed to support a reading of infinitesimals according to which they are logical fictions, contradictory in (...) their definition, and thus absolutely impossible. The advocates of such a reading have lumped infinitesimals with infinite wholes, which are rejected by Leibniz as contradicting the part–whole principle. Far from supporting this reading, the letter is arguably consistent with the view that infinitesimals, as inassignable quantities, arementis fictiones, i.e., (well-founded) fictions usable in mathematics, but possibly contrary to the Leibnizian principle of the harmony of things and not necessarily idealizing anything inrerum natura. Unlike infinite wholes, infinitesimals—as well as imaginary roots and other well-founded fictions—may involve accidental (as opposed to absolute) impossibilities, in accordance with the Leibnizian theories of knowledge and modality. (shrink)

Objective: Quality of Life is an important predictor of patient's recovery and survival in lung cancer patients. The aim of the present study is to identify 1-year trends of lung cancer patients' QoL after robot-assisted or traditional lobectomy and investigate whether clinical and sociodemographic variables may predict these trends.Methods: An Italian sample of 176 lung cancer patients undergoing lobectomy completed the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire—Core 30 at the pre-hospitalization, 30 days, 4 months, (...) 8 months, and 12 months after surgery. Sociodemographic and clinical characteristics were also collected. The individual change over time of the 15 dimensions of the EORTC QLQ-C30 and the effects of pre-surgery scores of QoL dimensions, type of surgery, perioperative complications, and age on patients' QoL after surgery were studied with the individual growth curve models.Results: Patients had a good recovery after lobectomy: functioning subscales improved over time, while most of the symptoms became less severe over the care process. Perioperative complications, type of surgery, pre-surgery status, and age significantly affected these trends, thus becoming predictors of patients' QoL.Conclusion: This study highlights different 1-year trends of lung cancer patients' QoL. The measurement of pre- and post-surgery QoL and its clinical and sociodemographic covariables would be necessary to better investigate patients' care process and implement personalized medicine in lung cancer hospital divisions. (shrink)

RESUMOO presente artigo tem como objetivo analisar os meandros da composição e suas intertextualidades na polêmica do samba entre Noel Rosa e Wilson Batista, observando o dialogismo na interação verbal e musical entre os autores e os diversos textos da década de 1930. Ao apurar os ouvidos sobre a "polêmica do samba" observa-se que as composições revelam tensões inexoráveis entre um mundo festivo do "malandro" e os limites da realidade da época. Desse modo, com suporte em estudos que tratam deste (...) tema, busca-se trazer à tona um insight sobre este "duelo" musical que está, certamente, muito mais disseminado na sociedade que restrito a questões puramente estéticas.ABSTRACTThe purpose of this paper is to analyze the meanders of composition and their intertextuality in the samba controversy between Noel Rosa and Wilson Batista. We observe dialogism in the verbal and musical interaction between the samba writers and several texts of the 1930s. When ears are in tune with the "samba controversy," one observes that the compositions reveal inexorable tensions between the festive world of the "malandro" and the limits of the reality of the time. Accordingly, based on studies that address this theme, we aim to present an insight into this musical "duel," which is not restricted to purely aesthetics issues, but certainly disseminated in society. (shrink)

Human language has the characteristic of being open and in some cases polysemic. The word “infinite” is used often in common speech and more frequently in literary language, but rarely with its precise meaning. In this way the concepts can be used in a vague way but an argument can still be structured so that the central idea is understood and is shared with to the partners. At the same time no precise definition is given to the concepts used and (...) each partner makes his own reading of the text based on previous experience and cultural background. In a language dictionary the first meaning of “infinite” agrees with the etymology: what has no end. We apply the word infinite most often and incorrectly as a synonym for “very large” or something that we do not perceive its completion. In this context, the infinite mentioned in dictionaries refers to the idea or notion of the “immeasurably large” although this is open to what the individual’s means by “immeasurably great.” Based on this linguistic imprecision, the authors present a non Cantorian theory of the potential and actual infinite. For this we have introduced a new concept: the homogon that is the whole set that does not fall within the definition of sets established by Cantor. (shrink)

Normal 0 21 false false false PT-BR X-NONE X-NONE Este texto apresenta partes de um projeto de longa duração, desenvolvido pelas autoras, que trata da cultura e identidade, memória e nomadismo através da música e, em particular do fado. Este gênero fixou-se no Brasil, através dos imigrantes portugueses e luso-descendentes, a transmissão sendo feita pelo rádio. Após um período de esmaecimento, o fado reaparece na paisagem sonora do final do século XX, com importantes mudanças no processo de assimilação e transmissão (...) do gênero. (shrink)

This paper is about syllogistic reasoning, i.e., reasoning from such pairs of premises as, All the chefs are musicians; some of the musicians are painters. We present a computer model that implements the latest account of syllogisms, which is based on the theory of mental models. We also report four experiments that were designed to test this account. Experiments 1 and 2 examined the strategies revealed by the participants' use of paper and pencil as aids to reasoning. Experiment 3 used (...) a new technique to externalize thinking. The participants had to refute, if possible, putative conclusions by constructing external models that were examples of the premises but counterexamples of the conclusions. Experiment 4 used the same techniques to examine the participants' strategies as they drew their own conclusions from syllogistic premises. The results of the experiments showed that individuals not trained in logic can construct counterexamples, that they use similar operations to those implemented in the computer model, but that they rely on a much greater variety of interpretations of premises and of search strategies than the computer model does. We re‐evaluates current theories of syllogistic reasoning in the light of these results. (shrink)

Il volume analizza il pensiero politico di Kant a partire da quell’insieme di opere, composte tra il 1784 e il 1793, nelle quali il filosofo tedesco ha posto le basi per la sua riflessione in materia di diritto, di Stato, di storia e di cosmopolitismo. L’analisi prosegue con lo studio dello scritto kantiano più notevole, dal punto di vista dell’Autore, Per la pace perpetua: un progetto filosofico (1795), completato dall’approfondimento di alcuni concetti elaborate nella Metafisica dei costumi (1797). Infine, nell’ultima (...) parte del lavoro, l’Autore si sofferma su un aspetto particolarmente problematico dell’ermeneutica di Kant, ovvero il confronto con il realismo politico, confronto dal quale emergerà con maggiore nitidezza il profilo teorico dell’impostazione kantiana. (shrink)

This paper examines folk theories of algorithmic recommendations on Spotify in order to make visible the cultural specificities of data assemblages in the global South. The study was conducted in Costa Rica and draws on triangulated data from 30 interviews, 4 focus groups with 22 users, and the study of “rich pictures” made by individuals to graphically represent their understanding of algorithmic recommendations. We found two main folk theories: one that personifies Spotify and another one that envisions it as a (...) system full of resources. Whereas the first theory emphasizes local conceptions of social relations to make sense of algorithms, the second one stresses the role of algorithms in providing a global experience of music and technology. We analyze why people espouse either one of these theories and how these theories provide users with resources to enact different modalities of power and resistance in relation to recommendation algorithms. We argue that folk theories thus offer a productive way to broaden understanding of what agency means in relation to algorithms. (shrink)

In this article I reconsider the issue of ?transfer? in education. Received views of learning transfer tend to rely upon a version of representation in which the world and the learner are held apart. The focus falls on how this gap can be closed; how learning can be transferred. A sociomaterial perspective, by contrast, puts learner and world back together, making each available to the other. Bringing the materialist sensibility of actor-network theory to bear and drawing on empirical data collected (...) as part of a small-scale qualitative study of the experience of graduate teachers when moving from education into work, it is argued that transfer, and by implication, learning, primarily concerns the practical and takes multiple forms: contingently composed of social, textual and material practices of knowledge production, learning transfer is a relational effect of the intersection of these practices. Empirical analyses point to the practice of two broad patterns of learning transfer, termed here the representational and the relational. Thinking learning transfer as performed through disparate agencies and practices challenges the self-evidences of perspectives on learning which characterize contemporary education. Here, learning is primarily seen in terms of the intrinsic capabilities of people, regardless of the object-dependent qualities of their learning and lives. This human-centricity raises significant epistemological and ethical issues which are addressed by way of a discussion of the embedded normativities and politics of the practices of representational and relational transfer. (shrink)

O artigo analisa a ideologia da equipe econômica do governo Fernando Henrique Cardoso, que orientou sua ação por uma racionalidade instrumental. Foi feita uma análise comparativa com as equipes econômicas dos governos anteriores, mostrando que a equipe do governo Cardoso abandonou o modelo desenvolvimentista para retomar o modelo clássico liberal. No entanto, o neoliberalismo da equipe de Cardoso não entende o mercado como um meio para se promover o desenvolvimento econômico e social. Herdeiros da geração pós Consenso de Washington, vêem (...) o mercado como um fim em si. A relação que esses economistas estabeleceram com o mercado é quase religiosa, porque nele depositaram total confiança. Para estes economistas, era como se o mercado fosse uma entidade superior que naturalmente resolveria os problemas econômicos e sociais. Sob esse pretexto, colocaram em prática no país políticas típicas do neoliberalismo, que prevêem o desmantelamento do Estado e das grandes conquistas políticas e sociais. Na verdade, essa idolatria em relação mercado configura a irracionalidade desses economistas que defendem explicitamente os interesses de um segmento da classe dominante, a saber, a burguesia financeira internacional. O que leva à conclusão de que não houve autonomia da equipe para elaborar as políticas econômicas do governo, porque seguem as receitas dos organismos internacionais. A autonomia só se estabeleceu em relação às classes trabalhadoras, que não participaram de qualquer negociação que lhes dizem respeito. (shrink)

There is a variety of way to organize and manage spatially knowledge in literature. In this present inquire only a few type relating to the context of education will be analyzed: two of the most widespread and oft-used in the field of didactic pedagogy and one that has recently been scientifically affirmed—though its study dates back twenty years. The parallel—and sometimes intertwining—analysis of these three interpretive perspectives could serve as an epistemological scaffolding allowing us to look out on a holistic (...) experimental paradigm on the topic of spatialization in/of cognitive processes. (shrink)

The present study explores the idea that human linguistic communication co-opted a pre-existing population-wide behavioural system that was shared among social group members and whose structure reflected the structure of the environment. This system is hypothesized to have emerged from interactions among individuals who had evolved the capacity to imitate arbitrary, functionless behaviour. A series of agent-based computer simulations test the separate and joint effects of imitation, pattern completion behaviour, environment structure and level of social interaction on such a population-wide (...) behavioural system. The results support the view that a system that could be co-opted for linguistic communication might arise in a population of agents equipped with arbitrary imitation for the purposes of pattern completion interacting in certain kinds of structured environments. Such pre-linguistic behavioural system could have bootstrapped communication and paved the way for biological capacities widely believed to be necessary for communication, such as shared intentionality and symbolicity, to evolve. (shrink)

The promise of genomic medicine lies in the opportunity to improve health outcomes via a personalized approach to management, grounded in genetic and genomic variation unique to an individual. However, disparities and inequities mar this remarkable landscape of genomic innovation. Prior efforts to understand these inequities have focused on populations for which genetic testing is relatively protocolized or where test utility varies greatly by ancestry groups, where equitable outcomes are more clearly defined. We therefore consider the current landscape of rare (...) disease genomics, in which diagnostic approaches vary widely and utility remains to be fully understood, and suggest a path forward: how ecosocial theory may be used to guide novel equity‐focused initiatives that incorporate illness narratives to improve population health. We present examples of narrative medicine in rare disease and reimagine the role this discipline may play in genomic sequencing studies, toward incorporation of the unique illness narrative into clinical genetics and genomics practice. Approaches that broaden the definitions of disease and of outcomes of interest will force the field to grapple with its racist history and begin to advance health equity and promote justice so that genomic medicine may truly deliver on its promise. (shrink)

Discussions of the framework and terminology associated with the right to health tend to treat the indeterminacy of ‘health’ as conceptual noise that the construction of effective policy must not focus on, but find ways of bracketing out. On this basis, the right to health is broadly regarded as a social and economic, rather than a civil and political right. This article draws critically on literature about the implications of developments in medical biotechnologies, to argue that a positive acknowledgement of (...) the indeterminate character of health should transform, rather than simply hinder, the quality of debate over what is to be understood and expected in connection with a right to health. A focus on indeterminacy allows for the perception and the formulation of health-related demands that may not stem from the scarcity of material resources or technical means, but from the misplaced authority of particular voices in defining what possibilities are to be seriously envisaged. This proposition only becomes politically effective, it is argued, when ‘indeterminacy’ (and the capacity for normativity) is referred to life itself and not merely to social and moral judgements about life. Although more immediately pertinent to the concerns of relatively privileged populations, the focus on indeterminacy provides a key to generating a certain symmetry and complementarity of interest, across the privileged/underprivileged divide, in promoting health as a (human) right. (shrink)

ArgumentUsing the notion of styles of knowledge we refer to the ways diverse scientific communities claim to produce true knowledge, their understandings regarding the attitudes and values that scientists should have in order to grasp natural and social reality, and the practices and technologies developed within such styles. This paper analyzes scientific and medical enterprises that explored the relationship between environment, population, and society in Colombia between 1850 and 1920. We argue that similar styles of knowledge production were shared in (...) human geography, medical geography, and climatic physiology at the mid-nineteenth century; and that some physicians working in bacteriology and physiology since the 1880s established epistemic boundaries between their work and earlier scientific activities, while others found these distinctions irrelevant. However, the historical actors committed to any of the styles of knowledge production explored in this article agreed on the local specificity of their objects of inquiry, therefore questioning European science. These styles of knowledge production also shaped different ways of perceiving and addressing national problems. Hence, this article is a contribution to the recent literature on both historical epistemology and social and cultural history of science and medicine. (shrink)

Gregory Conti’s Parliament the Mirror of the Nation: Representation, Deliberation, and Democracy in Victorian England offers a carefully researched, fine-grained historical reconstruction of ninete...

Biennials – periodic, independent and international exhibitions surveying trends in visual art – have with startling speed become key nodes in linking production, distribution and consumption of contemporary art. Cultural production and consumption have been typically separated in research, neglecting phenomena, like biennials, sitting in between. Biennials have become, however, key sites of both the production of art’s discourse and where that discourse translates into practices of display and contexts of appreciation. They are, this article argues, key sites of art’s (...) symbolic production. Symbolic production is what makes a work, an artist, or even a genre visible and relevant, providing its sense in a system of classifications and, in an exhibition like a biennial, literally giving it a place in the scene. This article proposes a cultural analysis of biennials, focusing on the Venice Biennale, founded in 1895 and the first of the genre, through which we can trace biennials’ rise and transformations. (shrink)

To date, COVID-19 has spread across the world, changing our way of life and forcing us to wear face masks. This report demonstrates that face masks influence the human ability to infer emotions by observing facial configurations. Specifically, a mask obstructing a face limits the ability of people of all ages to infer emotions expressed by facial features, but the difficulties associated with the mask’s use are significantly pronounced in children aged between 3 and 5 years old. These findings are (...) of essential importance, as they suggest that we live in a time that may potentially affect the development of social and emotion reasoning, and young children’s future social abilities should be monitored to assess the true impact of the use of masks. (shrink)

Georg Simmel’s final work, The View of Life, concludes his lifelong engagement with Immanuel Kant by ‘inverting’ Kant’s Categorical Imperative to produce an ethics of authentic individuality. While Kant’s moral imperative is universal to all individuals but particular to their discrete acts, Simmel’s Law of the Individual is particular to each individual but universal to all the individual’s acts. We assess the significance of Simmel’s formulation of the Law of the Individual in three steps: First, as an articulation of an (...) ethical moment consonant with his relational approach to formal sociology, hinted at earlier in Sociology but not developed as such. Second, as a completion of the framework for Simmel’s formal sociology: the Law of the Individual conceptualizes a decisive but under-theorized relationship in Simmel’s vision of ‘society’ that is a woven fabric of social relationships, namely one’s relationship with oneself. We follow with a third proposal about how Simmel might have continued the line of thought he opens in The View of Life, suggesting that we can take the Law of the Individual as an invitation to fold the self-relation back into analysis of social relations, and to theorize how forms of association are shaped by forms of self-relation. We thus narrow the theoretical gulf between Simmel’s vitalism and his sociology, which commentators usually hold apart. And in so doing, we sketch a distinctively Simmelian approach to an ethics of individuality in sociological inquiry. (shrink)

This text, touching on the problem of the ontology of the image from a political-theological perspective, focuses on Reiner Schürmann’s philosophical reading of the pictorial art of Louis Comtois. While placing it in the context of post-World War II modernism, he nevertheless underlines its special spiritual quality that, far from any theorization of messianic abstractionism or any affirmation of artistic sovereignty, shows all the anarchic simplicity of painting. It is a form of modernity still to be imagined but one that (...) is already in some way active in the unpredictable meeting of matter and light, which Comtois’s pictorial act and Schürmann’s thought contemplate in the inseparable connection between history and immortality. (shrink)

We investigate the emergence of iconicity, specifically a bouba-kiki effect in miniature artificial languages under different functional constraints: when the languages are reproduced and when they are used communicatively. We ran transmission chains of participant dyads who played an interactive communicative game and individual participants who played a matched learning game. An analysis of the languages over six generations in an iterated learning experiment revealed that in the Communication condition, but not in the Reproduction condition, words for spiky shapes tend (...) to be rated by naive judges as more spiky than the words for round shapes. This suggests that iconicity may not only be the outcome of innovations introduced by individuals, but, crucially, the result of interlocutor negotiation of new communicative conventions. We interpret our results as an illustration of cultural evolution by random mutation and selection. (shrink)

Cet article vise à situer les notions de sujet, de corps et de vie chez Foucault à partir du passage d’un cadre conceptuel basé sur les notions de corps-pouvoir à un centré sur celles de vie-gouvernement. Mon hypothèse est que ce mouvement caractérise le développement de ses recherches entre les années 1970 et les années 1980. Le problème central est la difficulté de penser le statut ontologique des rapports de pouvoir (au sens physique) sans attribuer au corps une sorte de (...) qualité ontologique du même type (comme dans tous les formes de vitalisme), ce qui conduit Foucault à privilégier la thèmatique de la vie à celle du corps dans le développement de sa « question du sujet ». (shrink)

This essay examines how early moderns used birth horoscopes (genitures) to assess the compatibility of prospective spouses before marriage. Astrologers could probe the horoscope of an individual to investigate his or her present and future physical and moral qualities or compare charts to reveal the personal compatibility of a couple and help establish the best time to consummate their marriage. These practices aimed at ensuring a fruitful marriage and the harmony and happiness of the couple and their families. Focusing on (...) a few key examples, the essay outlines both the astrological theories and the social politics that propelled astrological matching, suggesting that its appeal lay in the promise of informed choice while also preserving free will. Finally, the author suggests ways in which astrological practices and the use of vast amounts of astronomical data share affinities with data-driven matching in our own time. (shrink)

En el texto se exponen algunas reflexiones sobre la importancia que tiene el rescatar los conocimientos tradicionales de las comunidades rurales, indígenas y campesinas sobre las prácticas agrícolas y alimenticias como recurso y mecanismo para favorecer la seguridad alimnetaria y de esta manera la sustentabilidad comunitaria. Se parte de una revisión bibliográfica sobre el tema, y se exponen casos específicos, como ejemplo, donde la experiencia se ha convertido en una oportunidad de algunas comunidades para hacer valer sus derechos de manejo (...) de la tierra, los procesos que se requieren para la diversidad de cultivos, de su propio sistema de producción y de esta forma mitigar los efectos de la pobreza y consolidad una propuesta alterna para el ejercicio de la soberanía y seguridad alimentaria de las comunidades. (shrink)