O problema da causação descendente é um ponto central na formulação do fisicalismo não-redutivo e na compreensão da emergência de propriedades. Duas interpretações possíveis da causação descendente, nas quais a contribuição do pensamento aristotélico é importante, são examinadas. Os requisitos do programa de matematização da natureza na mecanica clássica, que levaram ao abandono de três dos modos causais aristotélicos, nao parecem igualmente importantes nas ciencias especiais. Isto sugere que a contribuição de Aristóteles pode ser, de certa maneira, retomada. Uma definição (...) de propriedade emergente é apresentada, sendo a causação descendente interprerada de acordo com os modos causais formal e funcional.The problem of downward causation is a key subject in the formulation of nonreductive physicalism as well as in the understanding of property emergence. Two possible interpretations of downward causation, to which Aristotelian thought is relevant, are examined. In the mathematical understanding of nature in classical mechanics, the principle of causality should meet requirements that entailed the rejection of three among the four Aristotelian causal modes. Those requirements do not seem equally important in the special sciences and one may suggest, then, that Aristotle’s contribution may be taken into account. A definition of an emergent property is proposed, in which downward causation is interpreted according to the formal and functional causal modes. (shrink)

O problema da causação descendente é um ponto central na formulação do fisicalismo não-redutivo e na compreensão da emergência de propriedades. Duas interpretações possíveis da causação descendente, nas quais a contribuição do pensamento aristotélico é importante, são examinadas. Os requisitos do programa de matematização da natureza na mecanica clássica, que levaram ao abandono de três dos modos causais aristotélicos, nao parecem igualmente importantes nas ciencias especiais. Isto sugere que a contribuição de Aristóteles pode ser, de certa maneira, retomada. Uma definição (...) de propriedade emergente é apresentada, sendo a causação descendente interprerada de acordo com os modos causais formal e funcional.The problem of downward causation is a key subject in the formulation of nonreductive physicalism as well as in the understanding of property emergence. Two possible interpretations of downward causation, to which Aristotelian thought is relevant, are examined. In the mathematical understanding of nature in classical mechanics, the principle of causality should meet requirements that entailed the rejection of three among the four Aristotelian causal modes. Those requirements do not seem equally important in the special sciences and one may suggest, then, that Aristotle’s contribution may be taken into account. A definition of an emergent property is proposed, in which downward causation is interpreted according to the formal and functional causal modes. (shrink)

Mimicry and deception are two important issues in studies about animal communication. The reliability of animal signs and the problem of the benefits of deceiving in sign exchanges are interesting topics in the evolution of communication. In this paper, we intend to contribute to an understanding of deception by studying the case of aggressive signal mimicry in fireflies, investigated by James Lloyd. Firefly femmes fatales are specialized in mimicking the mating signals of other species of fireflies with the purpose of (...) attracting responding males to become their prey. These aggressive mimics are a major factor in the survival and reproduction of both prey and predator. It is a case of deception through active falsification of information that leads to efficient predation by femmes fatales fireflies and triggered evolutionary processes in their preys’ communicative behaviors. There are even nested coevolutionary interactions between these fireflies, leading to a remarkable system of deceptive and counterdeceptive signaling behaviors. We develop here a semiotic model of firefly deception and also consider ideas advanced by Lloyd about the evolution of communication, acknowledging that deception can be part of the explanation of why communication evolves towards increasing complexity. Increasingly complex sign exchanges between fireflies evolve in an extremely slow pace. Even if deceptive maneuvers are played out time and time again between particular firefly individuals, the evolution of the next level of complexity—and thus the next utterance in the dialogue between species—is likely to take an immense amount of generations. (shrink)

The tradition of pragmatism has, especially since Dewey, been characterized by a commitment to nonreductive naturalism. The notion of emergence, popular in the early decades of the twentieth century and currently re-emerging as a central concept in metaphysics and the philosophy of mind, may be useful in explicating that commitment. The present paper discusses the issue of the reality of emergent properties, drawing particular attention to a pragmatic way of approaching this issue. The reality of emergents can be defended as (...) a pragmatically-useful ontological commitment; hence, pragmatism can be employed as a tool in the debate over the structure and reality of emergence. This strategy of justifying ontological commitments is examined through historical and systematic discussions of the pragmatist tradition. It turns out, among other things, that while classical pragmatists did not specify any technical notion of emergence in the contemporary sense, their non-reductively naturalist views are relevant to the more recent emergence discussions -- especially because they rejected the metaphysical realism typical of today’s ontologically-oriented emergence theories. (shrink)

The Peircean semiotic approach to information that we developed in previous papers raises several new questions, and shows both similarities and differenceswith regard to other accounts of information. We do not intend to present here any exhaustive discussion about the relationships between our account and otherapproaches to information. Rather, our interest is mainly to address its relationship to ideas about information put forward by Gregory Bateson and Eva Jablonka. We conclude that all these authors offer quite broad concepts of information, (...) but we argue that they are just as broad as they should be, since information is in itself a sweeping concept. Furthermore, all of them suggest a processual approach to information, which departs from the treatment of information as something that is contained in some structure (e.g., in sequences of nucleotides) and moves towards an understanding of information as a process — in terms of our account, a semiotic process, i.e., semiosis. (shrink)

Terms loaded with informational connotations are often employed to refer to genes and their dynamics. Indeed, genes are usually perceived by biologists as basically ‘the carriers of hereditary information.’ Nevertheless, a number of researchers consider such talk as inadequate and ‘just metaphorical,’ thus expressing a skepticism about the use of the term ‘information’ and its derivatives in biology as a natural science. First, because the meaning of that term in biology is not as precise as it is, for instance, in (...) the mathematical theory of communication. Second, because it seems to refer to a purported semantic property of genes without theoretically clarifying if any genuinely intrinsic semantics is involved. Biosemiotics, a field that attempts to analyze biological systems as semiotic systems, makes it possible to advance in the understanding of the concept of information in biology. From the perspective of Peircean biosemiotics, we develop here an account of genes as signs, including a detailed analysis of two fundamental processes in the genetic information system (transcription and protein synthesis) that have not been made so far in this field of research. Furthermore, we propose here an account of information based on Peircean semiotics and apply it to our analysis of transcription and protein synthesis. (shrink)

Transdisciplinary research challenges the divide between Indigenous and academic knowledge by bringing together epistemic resources of heterogeneous stakeholders. The aim of this article is to explore causal explanations in a traditional fishing community in Brazil that provide resources for transdisciplinary collaboration, without neglecting differences between Indigenous and academic experts. Semi-structured interviews were carried out in a fishing village in the North shore of Bahia and our findings show that community members often rely on causal explanations for local ecological phenomena with (...) different degrees of complexity. While these results demonstrate the ecological expertise of local community members, we also argue that recognition of local expertise needs to reflect on differences between epistemic communities by developing a culturally sensitive model of transdisciplinary knowledge negotiation. (shrink)

In this chapter, we will address criticisms to the theory of ecological functions introduced by Nunes-Neto et al. (2014). In doing so, we intend to further develop the theory, as a possible basis for naturalizing the teleological and normative dimensions of ecological functions. We will also take the first steps in the construction of an integrated scientific and ethical approach to sustainability that is intended to avoid an anthropocentric perspective.

The controversy over the notion of emergence has recently re-emerged But a rigorous debate concerning how it might be explained or defined often lacking Emergence is discussed heir under two strict conditions (I) emergents can be predictable from the knowledge about a system's parts, (11) emergents can be regarded as dependent on, and determined by, the system's micro-structure O’Connor’s definition of an emergent property is taken as a starting-point for a new definition, incorporating Emmeche and colleagues’ analysis of downward causation (...) and Baas' treatment of emergence It is not necessary to assume that das definition might provide die solution to the problem of emergence Rather, theoretical pluralism regarding different pragmatically-workable notions of emergence is welcome The reality of emergents is discussed here from the standpoint of Dennet’s mild realism. (shrink)

Poliseli, L. & El-Hani, C.N. Imagination in Science. In L. Tateo, A theory of Imagining, Knowing and Understanding, SpringerBriefs in Psychology. -/- This chapter comments on the book from the perspective of the developments in philosophy of science and intercultural communication. It raises a number of issues to be further discussed in order to continue inquiry into Tateo’s approach. It discusses how imaginative processes are engaged in modeling work in science. It also shows how, facing the environmental challenges that (...) require an innovative thinking, relational empathy can play a rather important role in co-construction of knowledge and understanding through transdisciplinary processes. (shrink)

This paper offers a contribution to debates around integrative aspects of systems biology and engages with issues related to the circumstances under which physicists look at biological problems. We use oral history as one of the methodological tools to gather the empirical material, conducting interviews with physicists working in systems biology. The interviews were conducted at several institutions in Brazil, Germany, Israel and the U.S. Biological research has been increasingly dependent on computational methods, high-throughput technologies, and multidisciplinary skills. Quantitative scientists (...) are joining biological departments and collaborations between physicists and biologists are particularly vigorous. This state of affairs raises a number of questions, such as: What are the circumstances under which physicists approach biological problems in systems biology? What kind of interdisciplinary challenges must be tackled? The paper suggests that, concerning physicists’ move to work on biological systems, there are common reasons to move, the transition must be understood in terms of degrees, physicists have a rationale for simplifying systems, and distinct conceptions of model and modeling strategies are recurrent. We identified problems regarding linguistic clarity and integration of epistemological aims. We conclude that cultural unconformities within the systems biology community have important consequences to the flow of scientific knowledge. (shrink)

Ethnobiology has become increasingly concerned with applied and normative issues such as climate change adaptation, forest management, and sustainable agriculture. Applied ethnobiology emphasizes the practical importance of local and traditional knowledge in tackling these issues but thereby also raises complex theoretical questions about the integration of heterogeneous knowledge systems. The aim of this article is to develop a framework for addressing questions of integration through four core domains of philosophy - epistemology, ontology, value theory, and political theory. In each of (...) these dimensions, we argue for a model of “partial overlaps” that acknowledges both substantial similarities and differences between knowledge systems. While overlaps can ground successful collaboration, their partiality requires reflectivity about the limitations of collaboration and co-creation. By outlining such a general and programmatic framework, the article aims to contribute to developing “philosophy of ethnobiology” as a field of interdisciplinary exchange that provides new resources for addressing foundational issues in ethnobiology and also expands the agenda of philosophy of biology. (shrink)

The controversy over the notion of emergence has recently re-emerged But a rigorous debate concerning how it might be explained or defined is often lacking Emergence is discussed here under two strict conditions (l) emergents can be predictable from the knowledge about a system's parts, (ll) emergents can be regarded as dependent on, and deternuned by, the system's micro-structure O'Connor's definmon of an emergent property is taken as a starting-point for a new definmon, incorporating Emmeche and colleagues' analysis of dounward (...) causation and Baas' treatment of emergence It is not necessary to assume that this defintaon might provide the solution to the problem of emergence Rather, theoretical pluralism regarding different pragmatically-workable notions of emergence is welcome The reality of emergents is discussed here from the standpoint of Dennet's mild realism. (shrink)

Take part... and you will bear witness to the semiotic nature of human animals. This event, commented by Charbel Niño El-Hani (Federal University of Bahia) and chaired by Elma Berisha (Lyceum Institute), is part of the activities of the 2022 International Open Seminar on Semiotics: a Tribute to John Deely on the Fifth Anniversary of His Passing, cooperatively organized by the Institute for Philosophical Studies of the Faculty of Arts and Humanities of the University of Coimbra, the (...) Lyceum Institute, the Deely Project, Saint Vincent College, the Iranian Society for Phenomenology at the Iranian Political Science Association, the International Association for Semiotics of Space and Time, the Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences, the Semiotic Society of America, the American Maritain Association, the International Association for Semiotic Studies, the International Society for Biosemiotic Studies, the International Center for Semiotics and Intercultural Dialogue, Moscow State Academic University for the Humanities and the Mansarda Acesa with the support of the FCT - Foundation for Science and Technology, I.P., of the Ministry of Science, Technology and Higher Education of the Government of Portugal under the UID/FIL/00010/2020 project. *** Jamin Pelkey is Associate Professor and Program Director in the Department of Languages, Literatures and Cultures at Ryerson University, Toronto, where he is also an active faculty member in the Ryerson-York graduate program in Communication & Culture. He serves as Co-Editor of Semiotica, Vice President of the International Association for Cognitive Semiotics, and executive board member for the International Cognitive Linguistics Association, the International Society for Biosemiotic Studies, and the Semiotic Society of America. Jamin’s research explores semiotic dimensions of language evolution and embodied cognition. He is the recipient of the 2017 Mouton d’Or Award for best article in Semiotica and has edited or co-edited twelve collections in linguistics, anthropology, and semiotics, including Tropological Thought and Action (2022), Cognitive Semiotics (2019), Applied Brand Semiotics (2018), Archaeology of Concepts (2018), Sociohistorical Linguistics in Southeast Asia (2017), Virtual Identities (2016), and The Semiotics of Paradox (2015). His authored books include Dialectology as Dialectic (2011) and The Semiotics of X (2017). He is currently editing Bloomsbury Semiotics, a major reference work in four volumes. *** Charbel N. El-Hani is full professor in the Institute of Biology, Federal University of Bahia, Brazil. Coordinator of the LEFHBio - History, Philosophy, and Biology Teaching Lab and the INCT IN-TREE - National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution. Between January 2020 and July 2021, he was visiting researcher at the CES - Centre for Social Studies of the University of Coimbra, Portugal. He works in the areas of philosophy of biology, ecology, ethnobiology and science education research. *** Homepage: https://www.uc.pt/fluc/uidief/io2s Auditorium: https://www.uc.pt/fluc/uidief/io2s/auditorium *** Technical support assured by Robert Junqueira. The cover image for the video was designed by Zahra Soltani. (shrink)

Transdisciplinary research knits together knowledge from diverse epistemic communities in addressing social-environmental challenges, such as biodiversity loss, climate crises, food insecurity, and public health. This paper reflects on the roles of philosophy of science in transdisciplinary research while focusing on Indigenous and other subaltern forms of knowledge. We offer a critical assessment of demarcationist approaches in philosophy of science and outline a constructive alternative of transdisciplinary philosophy of science. While a demarcationist focus obscures the complex relations between epistemic communities, transdisciplinary (...) philosophy of science provides resources for meeting epistemic and political challenges of collaborative knowledge production. (shrink)

This article intends to show that the defense of “understanding” as one of the major goals of science education can be grounded on an anti-reductionist perspective on testimony as a source of knowledge. To do so, we critically revisit the discussion between Harvey Siegel and Alvin Goldman about the goals of science education, especially where it involves arguments based on the epistemology of testimony. Subsequently, we come back to a discussion between Charbel N. El-Hani and Eduardo Mortimer, on (...) the one hand, and Michael Hoffmann, on the other, striving to strengthen the claim that rather than students’ belief change, understanding should have epistemic priority as a goal of science education. Based on these two lines of discussion, we conclude that the reliance on testimony as a source of knowledge is necessary to the development of a more large and comprehensive scientific understanding by science students. (shrink)

This paper examines the notion of emergence from the perspective of pragmatism, drawing special attention to Donald Davidson’s recent account of the emergence of thought and to Hilary Putnam’s pragmatic realism, which, we argue, can be applied to the question of the reality of emergent properties. Our overall conclusion is that the debate over the concept of emergence actively going on in contemporary metaphysics, philosophy of mind, and philosophy of science should be focused more strongly on the realism issue, even (...) though most emergentists tend to assume a rather straightforward metaphysical realism – a view that ought to be called into question on pragmatist grounds. (shrink)

In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this work (...) is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

An Introcution to a Special Number of Principia.

: In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this (...) work is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

A recent idea of “ecosystem health” was introduced in the 1970s and 1980s to draws attention to the fact that ecosystems can become ill because of a reduction of properties such as primary productivity, functions and diversity of interactions among system components. Starting from the 1990s, this idea has been deeply criticized by authors who argued that, insofar as ecosystems show many differences with respect to organismic features, these two kinds of systems cannot share a typical organismic property such as (...) health. In recent years, an organisational approach in philosophy of biology and ecology argued that both organisms and ecosystems may share a fundamental characteristic despite their differences, namely, organisational closure. Based on this kind of closure, scholars have also discussed health and malfunctional states in organisms. In this paper, we examine the possibility of expanding such an organisational approach to health and malfunctions to the ecological domain. Firstly, we will see that a malfunction is related to a lower effectiveness in the functional behaviour of some biotic components with respect to other systemic components. We will then show how some introduced species do not satisfactorily interact in an organisational closure with other ecosystem components, thus posing a threat to the self-maintenance of the ecosystem in which they are found. Accordingly, we will argue that an ecosystem can be said to be healthy when it is a vital environment organisationally grounded on its intrinsic capacity to ensure, under favourable conditions, appropriate functional behaviours for ecosystem components and ecosystem self-maintenance. (shrink)

The controversy over the notion of emergence has recently re-emerged But a rigorous debate concerning how it might be explained or defined often lacking Emergence is discussed heir under two strict conditions emergents can be predictable from the knowledge about a system's parts, emergents can be regarded as dependent on, and determined by, the system's micro-structure O’Connor’s definition of an emergent property is taken as a starting-point for a new definition, incorporating Emmeche and colleagues’ analysis of downward causation and Baas' (...) treatment of emergence It is not necessary to assume that das definition might provide die solution to the problem of emergence Rather, theoretical pluralism regarding different pragmatically-workable notions of emergence is welcome The reality of emergents is discussed here from the standpoint of Dennet’s mild realism. (shrink)

This special issue of the journal Cybernetics & Human Knowing brings together contributions to the debate on emergence and related topics from a variety of perspectives, especially the sciences of complexity and cybernetics.The book is organised around four "position papers", each of which is discussed by other contributors to whom the original author then responds.

Currently there are persistent doubts about the meaning and contributions of the gene concept, mostly related to its interpretation as a stretch of DNA encoding a single functional product, i.e., the classical molecular gene concept. There is, however, much conceptual variation around genes, leading to important difficulties in genetics teaching. We investigated whether and how conceptual variation related to the gene concept and gene function models is present in school science and what potential problems it may bring to genetics teaching (...) and learning. Here, we report results on how ideas about genes and gene function are treated in textbooks and appear in students’ views and, also, about a teaching strategy for improving higher education students’ understanding of scientific models and conceptual variation around genes and their functions. (shrink)

Any description of the emergence and evolution of different types of meaning processes (semiosis, sensu C.S.Peirce) in living systems must be supported by a theoretical framework which makes it possible to understand the nature and dynamics of such processes. Here we propose that the emergence of semiosis of different kinds can be understood as resulting from fundamental interactions in a triadically-organized hierarchical process. To grasp these interactions, we develop a model grounded on Stanley Salthe's hierarchical structuralism. This model can be (...) applied to establish, in a general sense, a set of theoretical constraints for explaining the instantiation of different kinds of meaning processes (iconic, indexical, symbolic) in semiotic systems. We use it to model a semiotic process in the immune system, namely, B-cell activation, in order to offer insights into the heuristic role it can play in the development of explanations for specific semiotic processes. (shrink)

Ethnobiology has become increasingly concerned with applied and normative issues such as climate change adaptation, forest management, and sustainable agriculture. Applied ethnobiology emphasizes the practical importance of local and traditional knowledge in tackling these issues but thereby also raises complex theoretical questions about the integration of heterogeneous knowledge systems. The aim of this article is to develop a framework for addressing questions of integration through four core domains of philosophy -epistemology, ontology, value theory, and political theory. In each of these (...) dimensions, we argue for a model of “partial overlaps” that acknowledges both substantial similarities and differences between knowledge systems. While overlaps can ground successful collaboration, their partiality requires reflectivity about the limitations of collaboration and co-creation. By outlining such a general and programmatic framework, the article aims to contribute to developing “philosophy of ethnobiology” as a field of interdisciplinary exchange that provides new resources for addressing foundational issues in ethnobiology and also expands the agenda of philosophy of biology. (shrink)

When is conceptual change so significant that we should talk about a new theory, not a new version of the same theory? We address this problem here, starting from Gould’s discussion of the individuation of the Darwinian theory. He locates his position between two extremes: ‘minimalist’—a theory should be individuated merely by its insertion in a historical lineage—and ‘maximalist’—exhaustive lists of necessary and sufficient conditions are required for individuation. He imputes the minimalist position to Hull and attempts a reductio : (...) this position leads us to give the same ‘name’ to contradictory theories. Gould’s ‘structuralist’ position requires both ‘conceptual continuity’ and descent for individuation. Hull’s attempt to assimilate into his general selectionist framework Kuhn’s notion of ‘exemplar’ and the ‘semantic’ view of the structure of scientific theories can be used to counter Gould’s reductio , and also to integrate structuralist and population thinking about conceptual change. (shrink)

Peirce's pragmatic notion of semiosis can be described in terms of a multi-level system of constraints involving chance, efficient, formal and final causation. According to the model proposed here, law-like regularities, which work as boundary conditions or organizational principles, have a downward effect on the spatiotemporal distribution of lower-level semiotic items. We treat this downward determinative influence as a propensity relation: if some lower-level entities a,b,c,-n are under the influence of a general organizational principle, W, they will show a tendency (...) to behave in certain specific ways, and, thus, to instantiate a set of specific processes. Our goal in this paper is to examine the role of downward determination in semiotic systems, conceived as multi-level hierarchical systems. (shrink)

Cualquier descripción de la emergencia de significado en sistemas biológicos y artificiales debe apoyarse en un marco teórico que haga posible entender la naturaleza y la dinámica de tales procesos. En este artículo se toma la filosofía pragmática del signo de Charles S. Peirce, que asociamos aquí con el estructuralismo jerárquico de Stanley Salthe, como la base correcta para desarrollar ese marco conceptual. Se formulan algunas preguntas que consideramos fundamentales para asegurar una aplicación precisa de la noción de emergencia en (...) el contexto de las investigaciones acerca de sistemas semióticos. (shrink)

This article addresses the contributions of the literature on the new mechanistic philosophy of science for the scientific practice of model building in ecology. This is reflected in a one-to-one interdisciplinary collaboration between an ecologist and a philosopher of science during science-in-the-making. We argue that the identification, reconstruction and understanding of mechanisms is context-sensitive, and for this case study mechanistic modeling did not present a normative role but a heuristic one. We expect our study to provides useful epistemic tools for (...) the improvement of empirically-riven work in the debates about mechanistic explanation of ecological phenomena. (shrink)

In many experimental sciences, like particle physics or molecular biology, the proper place for establishing facts is the laboratory. In the sciences of population biology, however, the laboratory is often seen as a poor approximation of what occurs in nature. Results obtained in the field are usually more convincing. This raises special problems: it is much more difficult to obtain stable, repeatable results in the field, where environmental conditions vary out of the experimenter’s control, than in the laboratory. We examine (...) here how this problem affected an influential experimental research tradition in community ecology, the study of the ecology of the rocky seashores. In the 1960s, a handful of North-American ecologists, most notably Joseph Connell, Robert Paine and Paul Dayton, made the rocky seashores a model study system for experimenting in the field. Their experiments were deceptively simple: they removed species living on the seashore and described the resulting effects on the local ecology. These experiments exerted a deep influence on community ecology. They provided evidence for speculative developments concerning the theory of interspecific competition, the factors responsible for species richness and the ecology of food webs. They also stimulated novel conceptual developments. In particular, Paine developed the predation hypothesis, which states that the presence of predators can favour species richness, before introducing the keystone species concept, according to which some species exert disproportionate effects on ecological systems. More broadly, these experiments gave support to a methodological trend in favour of field experimentation. Only controlled perturbations in the field, it seemed, provided a reliable method to get insights into the structure of ecological communities. However, as experiments were continued in time and repeated in different sites, divergent results appeared. We analyse here how intertidal researchers coped with the variability of environmental conditions and tried to stabilize their results. In the process, they reconsidered not only their early conclusions, but also the exclusive status given to field experiments. Expanding on this case study, we discuss some significant differences between laboratory and field experiments. (shrink)

Genetic determinism can be described as the attribution of the formation of traits to genes, where genes are ascribed more causal power than what scientific consensus suggests. Belief in genetic determinism is an educational problem because it contradicts scientific knowledge, and is a societal problem because it has the potential to foster intolerant attitudes such as racism and prejudice against sexual orientation. In this article, we begin by investigating the very nature of belief in genetic determinism. Then, we investigate whether (...) knowledge of genetics and genomics is associated with beliefs in genetic determinism. Finally, we explore the extent to which social factors such as gender, education, and religiosity are associated with genetic determinism. Methodologically, we gathered and analyzed data on beliefs in genetic determinism, knowledge of genetics and genomics, and social variables using the “Public Understanding and Attitudes towards Genetics and Genomics” instrument. Our analyses of PUGGS responses from a sample of Brazilian university freshmen undergraduates indicated that belief in genetic determinism was best characterized as a construct built up by two dimensions or belief systems: beliefs concerning social traits and beliefs concerning biological traits; levels of belief in genetic determination of social traits were low, which contradicts prior work; associations between knowledge of genetics and genomics and levels of belief in genetic determinism were low; and social factors such as age and religiosity had stronger associations with beliefs in genetic determinism than knowledge. Although our study design precludes causal inferences, our results raise questions about whether enhancing genetic literacy will decrease or prevent beliefs in genetic determinism. (shrink)

Functional language is ubiquitous in ecology, mainly in the researches about biodiversity and ecosystem function. However, it has not been adequately investigated by ecologists or philosophers of ecology. In the contemporary philosophy of ecology we can recognize a kind of implicit consensus about this issue: while the etiological approaches cannot offer a good concept of function in ecology, Cummins’ systemic approach can. Here we propose to go beyond this implicit consensus, because we think these approaches are not adequate for ecology. (...) We argue that a sound epistemological framework to function in ecology is to be found in organizational approaches. In this line, we define function in ecology as a precise effect of a given constraint on the ecosystem flow of matter and energy performed by a given item of biodiversity, within a closure of constraints. We elaborate on this definition by developing a case study of a bromeliad ecosystem. (shrink)

This article discusses how to deal with the relations between different cultural perspectives in classrooms, based on a proposal for considering understanding and knowledge as goals of science education, inspired by Dewey’s naturalistic humanism. It thus combines educational and philosophical interests. In educational terms, our concerns relate to how science teachers position themselves in multicultural classrooms. In philosophical terms, we are interested in discussing the relations between belief, understanding, and knowledge under the light of Dewey’s philosophy. We present a synthesis (...) of Dewey’s theory of inquiry through his naturalistic humanism and discuss its implications for the concepts of belief, understanding, and knowledge, as well as for the goals of science teaching. In particular, we highlight problems arising in the context of possible conflicts between scientific and religious claims in the school environment that result from totalitarian positions. We characterize an individual’s position as totalitarian if he or she takes some way of thinking as the only one capable of expressing the truth about all that exists in the world, lacks open-mindedness to understand different interpretative perspectives, and attempts to impose her or his interpretation about the facts to others by violent means or not. From this stance, any other perspective is taken to be false a priori and, accordingly, as a putative target to be suppressed or adapted to the privileged way of thinking. We argue, instead, for a more fallibilist evaluation of our own beliefs and a more respectful appraisal of the diversity of students’ beliefs by both students and teachers. (shrink)

RESUMOO presente artigo analisa processos de alterização na biologia humana e na biomedicina. A alterização é entendida aqui como o processo cultural de produção de alteridades por meio da delimitação, rotulação e categorização das formas possíveis de ser outro, desde um determinado marco de referência sócio-histórico. Ainda que a alterização faça parte de qualquer processo de delimitação de categorias de identidade no seio de uma cultura - e, nesse sentido, possa apresentar visões do outro tanto positivas quanto negativas -, aqui (...) nos interessamos especificamente na alterização como fator de marginalização e exclusão social de diferentes grupos humanos. São analisados diversos processos de alterização operantes nos discursos e nas práticas das ciências biomédicas ao longo de sua história recente, os quais têm conduzido à exclusão social de diferentes categorias de outros, ou a tratá-los como inferiores, em pretendidas bases científicas, ou em função de determinadas práticas institucionalizadas dentro da comunidade científica. Exemplos típicos de grupos marginalizados pelas ciências ocidentais ao longo de sua história incluem as raças não europeias, as mulheres, os homossexuais e os "pobres". O principal objetivo do presente artigo é analisar, na história recente das ciências biomédicas, esses processos de alterização que têm conduzido à marginalização de tais grupos e a considerá-los como inferiores. ABSTRACTThis article analyzes processes of "othering" in human biology and biomedicine. Othering is understood here as the cultural process of production of otherness by means of the delimitation, tagging, and categorization of the possible ways of being "other" within a given socio-historical context. Although othering can be considered as a constitutive aspect of any process of delimitation of identities within a given culture - and in this sense it can present both positive and negative views of the "other" -, in the present article we are specifically interested in processes of othering that lead to the marginalization and social exclusion of different human groups. We will analyze processes of othering, which have operated in the discourses and practices of biomedical sciences throughout their recent history, that have led to the social exclusion of different categories of "others", or to treating them as inferior, and that have supposedly scientific bases or as a consequence of the institutionalization of certain practices within the scientific community. Typical examples of these "others", marginalized by the Western sciences throughout their history, are the non-European "races", women, gay and lesbian people, and the "poor". The main objective of this article is to analyze, in the recent history of the biomedical technosciences, these different processes of othering that have led to the marginalization of such "others" and to treating them as inferior. (shrink)

We argue that living systems process information such that functionality emerges in them on a continuous basis. We then provide a framework that can explain and model the normativity of biological functionality. In addition we offer an explanation of the anticipatory nature of functionality within our overall approach. We adopt a Peircean approach to Biosemiotics, and a dynamical approach to Digital-Analog relations and to the interplay between different levels of functionality in autonomous systems, taking an integrative approach. We then apply (...) the underlying biosemiotic logic to a particular biological system, giving a model of the B-Cell Receptor signaling system, in order to demonstrate how biosemiotic concepts can be used to build an account of biological information and functionality. Next we show how this framework can be used to explain and model more complex aspects of biological normativity, for example, how cross-talk between different signaling pathways can be avoided. Overall, we describe an integrated theoretical framework for the emergence of normative functions and, consequently, for the way information is transduced across several interconnected organizational levels in an autonomous system, and we demonstrate how this can be applied in real biological phenomena. Our aim is to open the way towards realistic tools for the modeling of information and normativity in autonomous biological agents. (shrink)

This article intends to show that the defense of ‘‘understanding’’ as one of the major goals of science education can be grounded on an anti-reductionist perspective on testimony as a source of knowledge. To do so, we critically revisit the discussion between Harvey Siegel and Alvin Goldman about the goals of science education, especially where it involves arguments based on the epistemology of testimony. Subsequently, we come back to a discussion between Charbel N. El-Hani and Eduardo Mortimer, on (...) the one hand, and Michael Hoffmann, on the other, striving to strengthen the claim that rather than students’ belief change, understanding should have epistemic priority as a goal of science education. Based on these two lines of discussion, we conclude that the reliance on testimony as a source of knowledge is necessary to the development of a more large and comprehensive scientific understanding by science students. (shrink)