IntroductionRheumatologists are the primary healthcare professionals responsible for patients with rheumatic diseases and should acquire medical ethical competencies, such as the informed consent process. The objective clinical structured examination is a valuable tool for assessing clinical competencies. We report the performance of 90 rheumatologist trainees participating in a station designed to evaluate the ICP during the 2018 and 2019 national accreditations.MethodsThe station was validated and represented a medical encounter in which the rheumatologist informed a patient with systemic lupus erythematosus with (...) clinically active nephritis about renal biopsy. A trained patient–actor and an evaluator were instructed to assess ICP skills in obtaining formal informed consent, delivering bad news and overall communication with patients. The evaluator used a tailored checklist and form.ResultsCandidate performance varied with ICP content and was superior for potential benefit information but significantly reduced for potential complications and biopsy description. Only 17.8% of the candidates mentioned the legal perspective of ICP. Death was omitted by the majority of the candidates ; after the patient–actor challenged candidates, only 57.1% of them gave a clear and positive answer. Evaluators frequently rated candidate communications skills as superior, but ≥1 negative aspect was identified in 69% of the candidates.ConclusionsEthical competencies are mandatory for professional rheumatologists. It seems necessary to include an ethics competency framework in the curriculum throughout the rheumatology residency. (shrink)

Resumen: En el presente ensayo se expone y discute la idea de que el lenguaje, más allá de ser un medio de comunicación, se manifiesta como poesía; esto en el sentido de que es en el lenguaje donde diariamente se configura el mundo con sentido humano. Poesía del lenguaje aparece como una expresión que busca dar cuenta de la energía creadora del lenguaje a la hora de instituir la realidad en la dimensión lingüística de esta. La discusión toma la forma (...) de comentarios y diálogo con tesis de pensadores como Heidegger, Saussure, Benjamin, Maturana, y de poetas como Novalis, Neruda, Huidobro, con el propósito de elucidar la dimensión poética del lenguaje y sus efectos prácticos y morales en la vida social.: In this essay we explain and discuss the idea that language, beyond its quality of being a means of communication, manifests itself as poetry; in the sense that it is in language where the daily configuration of a world with human meaning takes place. The poetry of language appears as an expression that thrives to explain the creative energy of language, as it institutes reality in its linguistic dimension. The discussion take shape in the form of comments on, and dialogue with, thinkers such as Heidegger, Saussure, Benjamin, Maturana, and with poets such as Novalis, Neruda, Huidobro, with the purpose of elucidating the poetic dimension of language and its practical and moral effects on social life. (shrink)

L’activité créatrice du design industriel est l’héritière directe du concept grec du τέχνη, et de la notion romaine d’ ars. Au contraire des Beaux-Arts, le design n’a jamais complètement renoncé à sa dimension fonctionnelle, et sa créativité s’est déployée au service des objets qui nous entourent. Victor Papaneck a lancé en 1971, dans son libre Design for the Real World, un appel à l’attention des designers en leur rappelant leur responsabilité sociale et en exigeant d’eux une attitude respectueuse envers l’environnement. (...) Cependant, aujourd’hui les choses ont beaucoup changé, tant à un niveau conceptuel que technologique. Pour cela il est nécessaire d’analyser, à partir des produits concrets des designers au xxi e siècle, la nouvelle orientation de l’ecodesign et d’approfondir les lignes d’action du design actuel qui maintiennent un engagement éthique avec la société : inclusive design/universal design et design pour la nécessité/ Design Takes of Risk. (shrink)

This article introduces Agentive Cognitive Construction Grammar, an emerging field that seeks to connect the linguistic system with speaker-meaning. The stated purpose is thus to tackle a pervasive disconnect in both cognitive linguistics and construction grammar, whereby the linguistic system and speaker selections are separated in the belief that language is essentially a mental process associated with the brain, and hence, separated from bodily experience. I contend this view by introducing a triadic model of construction in which form and function (...) are inextricably bound up with agency. This is possible because language is tethered to senses of movement and balance that connect experiences with the physical world with the mental. A major insight of the paper is that argument structure constructions partake of both linguistic and non-linguistic signs, which provides speakers with a means to verbalize their thoughts and distribute agency in specific events. (shrink)

Freire is one of the most powerful voices challenging the hegemony of bureaucratic and banking educational systems. His voice was particularly influential impacting revolutionary processes and progressive social movements while at the same time learning from their practices. However, some silences in his oeuvres requires further examination. In this article, we focus on the silences of Freire regarding education and its relationship with work and labor, gender issues, and citizenship building.

The aim of the present study was to determine statistical differences in a set of badminton competition matches in five different modalities with regard to competition level (Group Phase versus Eliminatory Phase). Data from 453 sets (125 in men’s singles; 108 sets in women’s singles; 77 sets in men’s doubles; 73 in women’s doubles and 70 in mixed doubles) from the RIO 2016 Olympics Games were recorded and classified in two groups of variables to analyse variables related to match (5) (...) and set (15). A descriptive analysis and univariate test (Mann Whitney U) for non-parametric data were conducted. The results show in men’s and women’s singles all the variables related to match were higher in the Elimination Phase than in the Group Phase (p<0.01). In Sets 1 and 3, the longest set duration, rally and average rally were found in the Elimination Phase than Group Stage (p<0.05). In women’s singles, these differences were also recorded in Set 2. For doubles, the results are more stable among groups. Men’s doubles had a longer duration of the match and set (set 1 and set 2) (p<0.01), and also scored highest for average rally strokes (set 1 and set 3) (p<0.05) and shuttles used in the Elimination Phase versus the Group Phase along the match (p<0.01). In women’s doubles, more shuttles were used in a match in the Elimination than in the Group Phase. Moreover, the same results are established for Set 2, including for average rally. Mixed doubles saw no match going to three sets. However, the greatest differences showed a longer rally and average rally being registered in the Elimination than in the Group Phase. In conclusion, the timing factors of the badminton singles and doubles games were different in the Elimination and Group Phases. This information may help players and coaches prepare and administer different types of workouts or, more specifically, competition schedules adapted to the characteristics of modern badminton. (shrink)

This paper offers a renewed construction grammar analysis of linguistic constructions in a diachronic perspective. The present theory, termedAgentive Cognitive Construction Grammar(AgCCxG), is informed byactive inference(AIF), a process theory for the comprehension of intelligent agency. AgCCxG defends the idea that language bear traces of non-linguistic, bodily-acquired information that reflects sémiotico-biological processes of energy exchange and conservation. One of the major claims of the paper is that embodied cognition has evolved to facilitate ontogenic mental alignment among humans. This is demonstrated by (...) the results of a corpus study in which the patterns of association between verbs, the particle UP and argument structure in Old and Middle English have been studied. The conclusion is that, similar to biological systems, the linguistic sign system displays patterns of equilibrium and non-equilibrium. In other words, while in Old English usage near equilibrium was reached through the use of a conservative set of constructional semiotic templates (attachment patterns), associated with motor modalities, Middle English displays high rates of randomness resulting in a less stable, yet distinct, system of constructional attachment. (shrink)

Anthropology of Consciousness, Volume 32, Issue 2, Page 124-128, Autumn 2021.

I argue for the view that the scientific model which Plato consistently had in mind when sharpening his main ethical theory was medicine. Moreover, I ascribe to Plato a “medical model of ethics”. A careful examination of this model reveals how Plato appropriates several medical concepts and ideas by employing two central methodological devices in his thought: dialectical transposition and analogical characterisation. In discussing them, I identify different kinds of medical references in the dialogues –not all medical references in Plato (...) have the same methodological status– and draw greater attention to the most recurrent medical analogies in them. More generally, the paper is also meant to provide a case study of the complex relationship between medicine and philosophy in Antiquity by examining in a new light the various ways in which the former served as an epistemological and ethical model for the latter. (shrink)

Anthropology of Consciousness, Volume 32, Issue 2, Page 124-128, Autumn 2021.

Name der Zeitschrift: Semiotica Jahrgang: 2018 Heft: 225 Seiten: 353-382.

The first goal of this paper is to reply to a number of criticisms levied by Gunnar Breivik and Robert L. Simon against an account of sporting skills I published almost 20 years ago in which I distinguished between constitutive and restorative skills and examined their normative significance. To accomplish this goal, I first summarize my characterization and classification of skills and then detail the criticisms. After responding to the latter, and thus reconsidering and hopefully strengthening my account of skill (...) in sport, I turn my attention to Scott Kretchmar and Tim Elcombe’s inquiry into the skills involved in competitive sport. These authors claim that contesting skills demand the same respect usually accorded to testing skills. The second goal of this paper is then to explore Kretchmar and Elcombe’s inquiry under the light of my reconsidered analysis of skill. I specifically advocate a plausible relationship, both in terms of their distinctive character and relative import, between testing and contesting skills and constitutive and restorative skills. In doing so, I seek to present a more comprehensive account of skill in non-competitive and competitive sport. (shrink)

Lethal Autonomous Weapons (LAWs) are robotic weapons systems, primarily of value to the military, that could engage in offensive or defensive actions without human intervention. This paper assesses and engages the current arguments for and against the use of LAWs through the lens of achieving more ethical warfare. Specific interest is given particularly to ethical LAWs, which are artificially intelligent weapons systems that make decisions within the bounds of their ethics-based code. To ensure that a wide, but not exhaustive, survey (...) of the implications of employing such ethical devices to replace humans in warfare is taken into account, this paper will engage on matters related to current scholarship on the rejection or acceptance of LAWs—including contemporary technological shortcomings of LAWs to differentiate between targets and the behavioral and psychological volatility of humans—and current and proposed regulatory infrastructures for developing and using such devices. After careful consideration of these factors, this paper will conclude that only ethical LAWs should be used to replace human involvement in war, and, by extension of their consistent abilities, should remove humans from war until a more formidable discovery is made in conducting ethical warfare. (shrink)

This paper provides a new interpretation of Plato’s account of justice as psychic health in Republic IV. It argues that what has traditionally been considered to be one single analogy is actually a more complex line of reasoning that contains various medical analogies. These medical analogies are not only different in number but also in kind. I discuss each of them separately, while providing a response to various objections.

In this article, I introduce a semiosic translation of Wittgenstein’s Tractatus Logico-Philosophicus. The theoretical framework is Semiosic Translation, a theory that combines Peirce’s interpretive semiotics and Wittgenstein’s notions of rule-following and complex-fact. I seek to show that this approach is particularly adroit at the task of making the sometimes cryptic philosophy of Ludwig Wittgenstein accessible to readers. To support this assertion, I compare and analyze several canonical translations of the Tractatus with possible semiosic translations. The results show that Wittgenstein’s work (...) throughout its different phases displays a continuity that reaches a genuine abductive peak in the Philosophical Investigations. This abductive, usage-based turn is, nonetheless, announced in the Tractatus in terms of a quest for semiotic accuracy. (shrink)

In a time imbued with civilisation crisis, José Manuel Naredo's work is of particular relevance. Naredo, one of the most prestigious economists in Spain and a pioneer of ecological economics, first published his most popular book ( La economía en evolución. Historia y perspectivas de las categorías básicas del pensamiento económico) in 1987. This article reviews its most recent and updated version released in 2015. Beyond a brilliant criticism of neoclassical economics, he discusses the underlying ideology and implications of the (...) notion of economic system uncritically endorsed by most schools of economic thought. Transcending the usual dichotomy between ‘orthodox’ and ‘heterodox’ economics, Naredo calls for an economic transition built on the integration of different kinds of scientific knowledge as well as other intuitive, metaphysical and ethical fields in favour of a truly inclusive economics. This is, he warns us, a sine qua non for a socioecological transformation to flourish. (shrink)

This chapter argues that dual-use emerging technologies are distributing unprecedented offensive capabilities to nonstate actors. To counteract this trend, some scholars have proposed that states become a little “less liberal” by implementing large-scale surveillance policies to monitor the actions of citizens. This is problematic, though, because the distribution of offensive capabilities is also undermining states’ capacity to enforce the rule of law. I will suggest that the only plausible escape from this conundrum, at least from our present vantage point, is (...) the creation of a “supersingleton” run by a friendly superintelligence, founded upon a “post-singularity social contract.” In making this argument, the present chapter offers a novel reason for prioritizing the “control problem,” i.e., the problem of ensuring that a greaterthan-human-level AI will positively enhance human well-being. (shrink)

This paper explores the commitment to corporate citizenship on the part of the largest U.S.-based multinationals in the emerging market region of Latin America. The websites of the largest U.S.-based firms - according to the 2007 Fortune 500 list - are reviewed and their CSR efforts in Latin America are noted. The firms' positions on corporate citizenship in Latin America are mapped onto a three-by-three matrix in which firms' commitment to corporate citizenship ranges from profitmaking motivations to a more holistic (...) approach where support for non-profit causes is embraced by the entire firm and implemented at all levels, 9-26, 2000). The largest U.S.-based multinationals were selected for this study because of their leadership role and the fact that other firms within their respective industries may seek to emulate the firms' level of commitment to corporate citizenship. While the matrix can be used to evaluate corporate citizenship efforts in any market - or globally - the emphasis in this study is on Latin America, a region of interest for two reasons: because of the paucity of research on this particular emerging market region as it relates to CSR, and because there is some evidence to suggest that philanthropic initiatives by the region's wealthy individuals lag behind individual philanthropic efforts in other world regions. If this is the case, this study aims to identify whether companies are picking up the slack. (shrink)

The current rise of neurodevelopmental disorders poses a critical need to detect risk early in order to rapidly intervene. One of the tools pediatricians use to track development is the standard growth chart. The growth charts are somewhat limited in predicting possible neurodevelopmental issues. They rely on linear models and assumptions of normality for physical growth data – obscuring key statistical information about possible neurodevelopmental risk in growth data that actually has accelerated, non-linear rates-of-change and variability encompassing skewed distributions. Here, (...) we use new analytics to profile growth data from 36 newborn babies that were tracked longitudinally for 5 months. By switching to incremental (velocity-based) growth charts and combining these dynamic changes with underlying fluctuations in motor performance – as the transition from spontaneous random noise to a systematic signal – we demonstrate a method to detect very early stunting in the development of voluntary neuromotor control and to flag risk of neurodevelopmental derail. (shrink)

Plato’s ideas on the value of nature and humankind are reconsidered. The traditional suggestion that his thought is ethically anthropocentric is rejected. Instead “Ethical Ratiocentrism” (ER) is the environmental worldview found in the dialogues. According to ER, human life is not intrinsically valuable, but only rational life is. ER is consistent with Plato’s holistic axiological outlook but incompatible with ethical anthropocentrism.

RésuméLa présente étude aborde la question de savoir comment l’œuvre du Marquis de Sade reste sur les développements des jeux du langage wittgensteniens, c’est-à-dire des pratiques langagières associées à la communication dans un contexte donné. Tout d’abord, une identification de la règle (en tant qu’élément organique d’une pratique langagière), et du rôle de l’abduction peircienne pour son application, montre que pour Sade « faire la même chose » (c’est-à-dire suivre la règle) lui permet de créer un système sémiotique pour justifier (...) une idéologie du privilège bourgeois. Ainsi conçue, la règle d’auteur devient expérience iconique d’hypervisibilité (fondée sur la frontalité de la sexualité) lorsqu’elle est appliquée par le lecteur (participant potentiel) à des nouveaux jeux du langage. En ce sens, les jeux du langage proposés par Sade visent à franchir les rets du livre pour justifier les illusions (im)morales de l’auteur, clés de voûte de toute son œuvre. (shrink)

Nosso objetivo é destacar algumas questões concernentes ao problema da matéria e domovimento na filosofia de Bergson. Questões presentes em seu segundo livro, Matéria e memória,as quais indicam uma nova orientação de sua filosofia: a passagem da psicologia à metafísica; mais precisamente, a introdução do tema do movimento e da duração "fora de nós". O primeiro capítulo do livro, ao caracterizar o universo material como um conjunto de imagens, desempenha um papel fundamental nessa passagem, a qual efetivamente se dá no (...) quarto capítulo, momento em que elabora uma metafísica da matéria. Para além desse contexto, é na direção de seu terceiro livro, A evolução criadora, que essa metafísica da matéria consequentemente aponta. (shrink)

Enhancement-line human genetic engineering has recurrently been targeted for bioethical discussion and is usually illustrated by examples alluding to a genetic technology that is far beyond our current possibilities. By discussing an ambitious project related to solid tumor cancers – multidrug resistance – the present paper places the question on a more realistic plane and draws bioethical conclusions to serve as guidelines in the field. The paper also establishes the inadequacy of the prevalent concept of genetic medicine as one of (...) substitution. (shrink)

This article aims to measure both the economic and social value of Tecnocampus, a Science and Technology Park in its region of influence. Our results show that the impact of Tecnocampus has a socioeconomic cost–benefit ratio of 2.39. Measuring the impact of this multifaceted centre requires a diverse approach. Although the methods used are not new, the combination of them presents a novel approach to measure the impact of an institution of this nature. We have measured the economic value with (...) the Input–Output model, including the Social Accounting Matrix. On the other hand, for social value calculations, we have used cost–benefit analysis adding measurements of firm localisation to estimate externality effects. Our main results present an economic value of more than 0.054% of the Catalan GDP, whereas the employment impact represents almost 0.37% of total employment in the region. The total economic multiplier of Tecnocampus activity is estimated to be 1.89. Social value generates an additional 0.50 euros to the multiplier according with our analysis. This additional social value represents an increase of productivity estimated in 20 million euros of operational income for Catalan firms and the creation of seven additional firms in the Maresme region as a result of knowledge spillovers. The social value also includes reduction of over-education caused by a better matching between graduates and enterprises, a more direct application of research, and an increase in consumer surplus. Finally, we discuss the policy implications of our findings to promote investments in this kind of infrastructures. (shrink)

Paul Gaffney has provided an excellent exploration of teamwork in athletic contexts, a topic that in spite of its prominence and relevance in the sporting world has been relatively neglected in the philosophy of sport literature. In this paper, I present and discuss three areas of Gaffney’s exploration of teamwork relevant to organized youth sport that might help stimulate reflection on the most auspicious conditions and responsible methodologies for young athletes to become themselves through organized sport.

Banking firms are becoming increasingly aware that their clients’ management of environmental and social risks may in term threaten their own business as lenders and investors. In addition, stakeholders are requiring banks to improve their social performance. As a result, some banks are developing corporate social responsibility (CSR) policies and management systems to reduce potential risks and improve their performance. In the Spanish financial system, half of the banking firms are savings banks, most of which have always used some Corporate (...) Social Responsibility (CSR) criteria in their management. Private Banks have only recently started to integrate social aspects in their performance. However, no formal analysis has been carried out on the impact of CSR strategies. Various initiatives have been launched nationally and internationally to include the social dimension in management systems. The purpose of this research is to analyse the social performance of the main Spanish financial companies through public data such as social or sustainability reports and media sources. In order to do this, we need to determine which CSR criteria most greatly affect banking firms and to choose the most accurate quantitative and qualitative indicators to measure social performance. (shrink)

It is common in contemporary sport to liken the notion of the team to that of the family. That is, the family is used to evoke team life. Portraying the team as a family usually implies a positive evaluation. Despite its prevalence, the team as a family equation has not been analyzed in the sport philosophy literature. Thus, the purpose of this article is twofold. First, it explores whether the team is to be equated with the family. To discuss the (...) nature of the family and the team, I draw together the work of several sport philosophers with that of Laura Wildemann Kane. Second, and considering what characterizes the team, this article investigates whether teammates have special responsibilities to one another by virtue of their relationship and the value attached to it. I propose that the team as a family equation does not align with the constitution of these two social groups and that teammates have special responsibilities to one another, but such responsibilities are different from those observed in the family. (shrink)

Banking firms are becoming increasingly aware that their clients’ management of environmental and social risks may in term threaten their own business as lenders and investors. In addition, stakeholders are requiring banks to improve their social performance. As a result, some banks are developing corporate social responsibility (CSR) policies and management systems to reduce potential risks and improve their performance. In the Spanish financial system, half of the banking firms are savings banks, most of which have always used some Corporate (...) Social Responsibility (CSR) criteria in their management. Private Banks have only recently started to integrate social aspects in their performance. However, no formal analysis has been carried out on the impact of CSR strategies. Various initiatives have been launched nationally and internationally to include the social dimension in management systems. The purpose of this research is to analyse the social performance of the main Spanish financial companies through public data such as social or sustainability reports and media sources. In order to do this, we need to determine which CSR criteria most greatly affect banking firms and to choose the most accurate quantitative and qualitative indicators to measure social performance. (shrink)

In this chapter I will present, in a general way, Millikan's biosemantic theory of the phenomenon of intentionality. For this purpose, the text will take the following path. First, I will present the problem of intentionality and an overview of the dominant theories of intentional content during the twentieth century and part of the twenty-first century. Then, I will present a general version of Millikan's biosemantic theory, appearing in 1984, which will allow us to see what the relevance and originality (...) of his proposal consists in. Finally, in keeping with one of the central purposes of Las filósofas que nos formaron, I will share a brief interview that Millikan very kindly agreed to give for this publication, in which she tells us some non-theoretical aspects of her history as a philosopher. (shrink)

Recent years have seen a heightened focus on the study of minimal forms of awareness during sleep to advance the study of consciousness and understand what makes a state conscious. This focus draws on an increased interest in anecdotical descriptions made by classic Indian philosophical traditions about unusual forms of awareness during sleep. For instance, in the so-called state of witnessing-sleep or luminosity sleep, one is said to reach a state that goes beyond ordinary dreaming and abide in a state (...) of just awareness, a state in which one is not aware of anything else other than one’s own awareness. Moreover, for these traditions, this state is taken to be the essence or background of consciousness. Reports on such a state opens the door to exciting new lines of research in the study of consciousness, such as inquiry into the so-called “objectless” awareness during sleep—states of awareness that lack an ordinary object of awareness. In this two-staged research project, we attempted to find the phenomenological blueprints of such forms of awareness during sleep in 18 participants by conducting phenomenological interviews, informed by a novel tool in qualitative research, the micro-phenomenological interview (MPI) method. Following a phenomenological analysis, we isolated a similar phase across 12 reported experiences labelled as ‘nothingness phase’ since it described what participants took to be an experience of ‘nothingness’. his common phase was characterised by minimal sense of self—a bodiless self, yet experienced as being ‘somewhere’—, the presence of non-modal sensations, relatively pleasant emotions, an absence of visual experience, wide and unfocused attention, and an awareness of the state as it unfolded. (shrink)

In Unfit for the Future, Ingmar Persson and Julian Savulescu argue that our collective existetial predicment is unprecedentedly dangerous due to climate change and terrorism. Given these global risks to human prosperity and survival, Persson and Savulescu argue that we should explore the radical possibility of moral bioenhancement in addition to cognitive enhancement. In this article, I argue that moral bioenhancements could nontrivially exacerbate the threat posed by certain kinds of malicious agents, while reducing the threat of other kinds. This (...) introduces a previously undiscussed complication to Persson and Savulescu's proposal. In the final section, I present a novel argument for why moral bioenhancement should either be compulsory or not be made available to the public at all. (shrink)

En esta era digital contemporánea, la constante creación y consumo de arte e imágenes visuales se ha vuelto predominante. Sin embargo, sigue existiendo la necesidad imperante de alfabetización visual. Esta investigación explora el impacto positivo de la educación artística en la vida de los estudiantes y aborda las desigualdades en la oferta de clases de arte en España y Estados Unidos. También enfatiza el rol fundamental de la integración de las artes de manera interdisciplinaria y transversal, instando a los encargados (...) de formular políticas educativas a priorizar la educación artística mejorando la legislación educativa y la asignación de recursos. El artículo examina las dificultades para garantizar el acceso equitativo a la educación artística y señala las oportunidades que se pierden cuando las habilidades de alfabetización visual no se desarrollan. Los resultados indican la necesidad de incorporar el arte en el plan de estudios de todas las asignaturas y así promover las habilidades de alfabetización visual. El artículo concluye ofreciendo sugerencias para integrar el arte en las clases obligatorias y promoviendo una educación artística equitativa en las escuelas. Esta investigación contribuye al discurso vigente sobre el potencial transformador de la educación artística en el panorama digital actual. (shrink)

Financial misconduct has come into the spotlight in recent years, causing market regulators to increase the reach and severity of interventions. We show that at times the economic benefits of illicit financial activity outweigh the costs of litigation. We illustrate our argument with data from the US Securities and Exchanges Commission and a case of investment misconduct. From the neoclassical economic paradigm, which follows utilitarian thinking, it is rational to engage in misconduct. Still, the majority of professionals refrain from misconduct, (...) foregoing economic rewards. We suggest financial activity could be reimagined taking into account intrinsic and prosocial motivations. A virtue ethics framework could also be applied, linking financial behavior to the quest for moral excellence and shared flourishing. By going beyond utilitarian thinking and considering alternative models, we offer a fuller account of financial behavior and a better perspective from which to design deterrence methods. (shrink)

The evolutionary implications of environmental change due to organismic action remain a controversial issue, after a decades—long debate on the subject. Much of this debate has been conducted in qualitative fashion, despite the availability of mathematical models for organism–environment interactions, and for gene frequencies when allele fitness can be related to exploitation of a particular environmental resource. In this article we focus on representative models dealing with niche construction, ecosystem engineering, the Gaia Hypothesis and community interactions of Lotka–Volterra type, and (...) show that their quantitative character helps bring into sharper focus the similarities and differences among their respective theoretical contexts. (shrink)