Le but de cet article est double: 1° retrouver dans les descriptions faites par Newton des forces que l'on observe dans la nature, le caractère vectoriel qu'il leur avait supposé dans sa deuxième loi du mouvement et qui est donc à la base de l'édifice que constituent les Principia; 2° montrer à travers les manuscrits préparatoires aux Principia et à ses deux rééditions, qu'il est difficile de répondre à la question de savoir quels vecteurs Newton compose dans son corollaire 1 (...) que nous lisons habituellement comme la loi de composition des forces. Ne s'agit-il pas plutôt de déplacements ou de mouvements et Newton était-il bien convaincu de son applicabilité aux forces «accélératrices»? (shrink)

Cet article aborde la question de la confrontation à l’éventualité de la mort chez l’enfant en situation de maladie grave. Prenant comme exemple paradigmatique la clinique de l’onco-hématologie pédiatrique, ce travail explore les retentissements psychiques de cette question à partir d’une approche principalement psychanalytique, en dialogue avec des savoirs issus de la sociologie et de la médecine. La méthodologie propose une articulation entre littératures théorique et clinique sur cette problématique. L’article met en lumière les effets du risque de mort (...) à travers l’étude des logiques médicales de traitement, des figurations de la mort et de leurs retentissements dans la pensée et les affects de l’enfant malade, et enfin des sentiments de guérison chez les enfants et adolescents guéris. Ce travail souligne l’importance pour l’enfant d’établir un dialogue avec un autre sur ce qu’il vit, ainsi que de pouvoir inscrire sa vie et sa présence au monde dans une histoire familiale élargie et contenante. (shrink)

This article reviews the recent literature on idealization, specifically idealization in the course of scientific modeling. We argue that idealization is not a unified concept and that there are three different types of idealization: Galilean, minimalist, and multiple models, each with its own justification. We explore the extent to which idealization is a permanent feature of scientific representation and discuss its implications for debates about scientific realism.

Many phenomena in the natural world are complex, so scientists study them through simplified and idealised models. Philosophers of science have sought to explain how these models relate to the world. On most accounts, models do not represent the world directly, but through target systems. However, our knowledge of target systems is incomplete. First, what is the process by which target systems come about? Second, what types of entity are they? I argue that the basic conception of target systems, on (...) which other conceptions depend, is as parts of the world. I outline the process of target system specification and show that it is a crucial step in modelling. I also develop an account of target system evaluation, based on aptness. Paying close attention to target system specification and evaluation can help scientists minimise the frequency and extent of mistakes, when they are using models to investigate phenomena in complex real-world systems. (shrink)

How does the complex nature of ecological systems affect ecologists' ability to study them? This Element argues that ecological systems are complex in a rather special way: they are causally heterogeneous. The author presents an updated philosophical account with an optimistic outlook of the methods and status of ecological research.

A hallmark of ecological research is dealing with complexity in the systems under investigation. One strategy is to diminish this complexity by constructing models and theories that are general. Alternatively, ecologists can constrain the scope of their generalizations to particular phenomena or types of systems. However, research employing the second strategy is often met with scathing criticism. I offer a theoretical argument in support of moderate generalizations in ecological research, based on the notions of interdependence and causal heterogeneity and their (...) effect on the trade-off between generality and realism. (shrink)

Isma‘īl b. ‘Ali, who is referred to as Abū Sa‘d as-Sammān, was born in Ray, Iran, between 981 and 983 and he devoted most of his life to educational travels, especially for hadith and he returned to his city of birth towards the end of his life and died there in 1053. Isma‘īl b. ‘Ali is well-known with the name of as- Sammān, meaning butter trader, because of he was grew up in a family of butter traders. The movables and (...) real estates in his inheretence show that he belongs to a wealthy family. As-Sammān, who seems to be in the twelfth generation of Muʻtazilite tradition, approve the thoughts of Abū Hāshim al-Jubbā’ī (ö. 321/933) and Abu'l-Ḥusayn al-Baṣrī (ö. 436/1044) and he was accepted as the leader of the Muʻtazila in his own period. He had education from scholars such as Abū Tāhir al-Muḫallis, Ibn Abū Nasr at-Tamīmī and Abkasī (ö. 405/1014-15) in the discipline of hadith. As-Sammān, was an authoritative figure both in the fiqh of Hanafi and disagreements between thoughts of Hanafism and Shafi'ism as well as in the fiqh of Zaydism. In addition, he educated himself in the topic of Qur’anic recitation, scholars of narrators, genealogy, law of inheritence and arithmetic. Among the works of as-Sammān, who are stated as many, only one record seem to be extant until today: “Kitāb al-Muvāfaqa bayn ahl al-bayt wa's-sahāba wa mā ravāhu kullu farīqin fī haqq al-āḫar”, which was written to point out the fondness and respect between the first three caliphs and ‘Ali. Thus, it is not possible for us to have a detailed knowledge about his thoughts in kalam and fiqh. However, Ibn al-‘Adīm (ö. 660/1262) gives us some ideas about thoughts of al-Sammān through his will narrates in his “Bughyat aṭ-Ṭalab fī tārīḫi Ḥalab”. As-Sammān states that his thoughts of kalam and fiqh are formed on the school of Ahl al-‘adl wa't-tawḥīd, in particular parallel with Muʻtazila-Zaydiyya and he designed his will, which he gave about two years before his death, according to the Muʻtazilite theological paradigm. In this context, according to as-Sammān, Allah is one and eternal. Attributes of Allah such as Power, Knowledge, Life, Hearing, Sight and Wealth are by virtue of His essence. Allah does not resemble anything, nor a body or an accident. All actions of Allah are good, and He never do evil. Allah does not wish for a sin nor have any consent to sin. Allah does not test people with what they cannot afford. Allah does not oppress people nor punish anyone with no justice. Allah is faithful to his promise that he will reward people who are good and will punish people who do evil. Voluntarily actions are created by people themselves. Revelation regarding the doomsday and the hereafter are true. Also, worships performed by the living on behalf of the dead such as hajj, ‘umrah, charity, reciting the the Qur'an and visiting the graves of them are useful for the dead. Repentance which is the forgiveness of sins is the decisiveness of not to commit it again with regret. As-Sammān has been criticized because of his Muʻtazilite thoughts, but his credibility, his intellectual effort and his abilities have been appreciated even by his opponents. The combative and dynamic nature of his life was reflected in his will are analysed in this work and it is concluded that he expressed his thoughts on belief and deeds in his will as a true Mu‘tazilite manifesto. (shrink)

Invasion biology is a relatively young discipline which is important, interesting and currently in turmoil. Biological invaders can threaten native ecosystems and global biodiversity; they can incur massive economic costs and even introduce diseases. Invasion biologists generally agree that being able to predict when and where an invasion will occur is essential for progress in their field. However, successful predictions of this type remain elusive. This has caused a rift, as some researchers are pessimistic and believe that invasion biology has (...) no future, whereas others are more optimistic and believe that the key to successful prediction is the creation of a general, unified theoretical framework which encompasses all invasion events. Although I agree that there is a future for invasion biology, extensive synthesis is not the way to better predictions. I argue that the causes of invasion phenomena are exceedingly complex and heterogeneous, hence it is impossible to make generalizations over particular events without sacrificing causal detail. However, this causal detail is just what is needed for the specific predictions which the scientists wish to produce. Instead, I show that a limited type of synthesis is a more useful tool for generating successful predictions. An important implication of my view is that it points to a more pluralistic approach to invasion biology, where generalization and prediction are treated as important yet distinct research goals. (shrink)

Prediction is an important aspect of scientific practice, because it helps us to confirm theories and effectively intervene on the systems we are investigating. In ecology, prediction is a controversial topic: even though the number of papers focusing on prediction is constantly increasing, many ecologists believe that the quality of ecological predictions is unacceptably low, in the sense that they are not sufficiently accurate sufficiently often. Moreover, ecologists disagree on how predictions can be improved. On one side are the ‘theory-driven’ (...) ecologists, those who believe that ecology lacks a sufficiently strong theoretical framework. For them, more general theories will yield more accurate predictions. On the other are the ‘applied’ ecologists, whose research is focused on effective interventions on ecological systems. For them, deeper knowledge of the system in question is more important than background theory. The aim of this paper is to provide a philosophical examination of both sides of the debate: as there are strengths and weaknesses in both approaches to prediction, a pluralistic approach is best for the future of predictive ecology. (shrink)

The traditional philosophy of science approach to prediction leaves little room for appreciating the value and potential of imprecise predictions. At best, they are considered a stepping stone to more precise predictions, while at worst they are viewed as detracting from the scientific quality of a discipline. The aim of this paper is to show that imprecise predictions are undervalued in philosophy of science. I review the conceptions of imprecise predictions and the main criticisms levelled against them: (i) that they (...) cannot aid in model selection and improvement, and (ii) that they cannot support effective interventions in practical decision making. I will argue against both criticisms, showing that imprecise predictions have a circumscribed but important and legitimate place in the study of complex, heterogeneous systems. The argument is illustrated and supported by an example from conservation biology, where imprecise models were instrumental in saving the kōkako from extinction. (shrink)

Parmi les découvertes notables du site d’Hagios Vassileios, à l’Ouest de la cité antique de Thasos, figure la base d’un ambon appartenant à la plus septentrionale des deux basiliques protobyzantines mises au jour. Dans un état précédent, le bloc était mis en oeuvre dans un monument funéraire inscrit : cinq noms, trois d’hommes et deux de femmes, étaient gravés sur sa face antérieure. Ces noms apparaissent dans d’autres inscriptions thasiennes d’époque impériale : tous appartiennent à une famille importante, où les (...) noms d’Hérodès fils de Samos et de Samos fils d’Hérodès paraissent avoir alterné d’une génération à l’autre. La confrontation de ces textes permet une reconstitution du stemma de la famille, ainsi que l’étude de son insertion dans les sphères supérieures de la société thasienne. (shrink)

In this article I intend to show that the inference problem, one of the main objections raised against the anti-Humean theory of natural laws defended by Dretske, Tooley and Armstrong (“DTA theory” for short), can be successfully answered. First, I argue that a proper solution should meet two essential requirements that the proposals made by the DTA theorists do not satisfy. Then I state a solution to the inference problem that assumes a local immanentistic view of universals, a partial definition (...) of the nomic necessitation relation as a relation of existential dependence, and a principle constraining multiple occupancy. I also argue that my solution meets the two requirements. Finally, I deal with non-standard laws such as exclusion laws, causal laws and laws involving spatiotemporal parameters. (shrink)

Models provide scientists with knowledge about target systems. An important group of models are those that are called general. However, what exactly is meant by generality in this context is somewhat unclear. The aim of this paper is to draw out a distinction between two notions of generality that has implications for scientific practice. Some models are general in the sense that they apply to many systems in the world and have many particular targets. Another sense is captured by models (...) that are aimed at understanding the fundamental or underlying dynamics of a phenomenon, as opposed to how it manifests in each particular case. They have non-specific, i.e. generic targets. While both notions of generality and genericness are legitimate and correspond to different aspects of scientific practice, they must be distinguished. Failing to do so obscures the danger of overgeneralisation faced by general models and facilitates the illegitimate use of generic models as general models. This can lead to a reduction of the explanatory and predictive power of both. (shrink)

There are two notions of abstraction that are often confused. The material view implies that the products of abstraction are not concrete. It is vulnerable to the criticism that abstracting introduces misrepresentations to the system, hence abstraction is indistinguishable from idealization. The omission view fares better against this criticism because it does not entail that abstract objects are non-physical and because it asserts that the way scientists abstract is different to the way they idealize. Moreover, the omission view better captures (...) the way that abstraction is used in many parts of science. Disentangling the two notions is an important prerequisite for determining how to evaluate the use abstraction in science. (shrink)

We argue that Brandon and Carson's (1996) "The Indeterministic Character of Evolutionary Theory" fails to identify any indeterminism that would require evolutionary theory to be a statistical or probabilistic theory. Specifically, we argue that (1) their demonstration of a mechanism by which quantum indeterminism might "percolate up" to the biological level is irrelevant; (2) their argument that natural selection is indeterministic because it is inextricably connected with drift fails to join the issue with determinism; and (3) their view that experimental (...) methodology in botany assumes indeterminism is both false and incompatible with the commitment to discoverable causal mechanisms underlying biological processes. We remain convinced that the probabilism of the theory of evolution is epistemically, not ontologically, motivated. (shrink)

Examining AI spirituality can illuminate problematic assumptions about human spirituality and AI cognition, suggest possible directions for AI development, reduce uncertainty about future AI, and yield a methodological lens sufficient to investigate human-AI sociotechnical interaction and morality. Incompatible philosophical assumptions about human spirituality and AI limit investigations of both and suggest a vast gulf between them. An emergentist approach can replace dualist assumptions about human spirituality and identify emergent behavior in AI computation to overcome overly reductionist assumptions about computation. Using (...) general systems theory to organize models of human experience yields insight into human morality and spirituality, upon which AI modeling can also draw. In this context, the pragmatist Josiah Royce’s semiotic philosophy of spirituality identifies unanticipated overlap between symbolic AI and spirituality and suggests criteria for a human-AI community focused on modeling morality that would result in an emergent Interpreter-Spirit sufficient to influence the ongoing development of human and AI morality and spirituality. (shrink)

In a series of pre-registered studies, we explored (a) the difference between people’s intuitions about indeterministic scenarios and their intuitions about deterministic scenarios, (b) the difference between people’s intuitions about indeterministic scenarios and their intuitions about neurodeterministic scenarios (that is, scenarios where the determinism is described at the neurological level), (c) the difference between people’s intuitions about neutral scenarios (e.g., walking a dog in the park) and their intuitions about negatively valenced scenarios (e.g., murdering a stranger), and (d) the difference (...) between people’s intuitions about free will and responsibility in response to first-person scenarios and third-person scenarios. We predicted that once we focused participants’ attention on the two different abilities to do otherwise available to agents in indeterministic and deterministic scenarios, their intuitions would support natural incompatibilism—the view that laypersons judge that free will and moral responsibility are incompatible with determinism. This prediction was borne out by our findings. (shrink)

The central conceptual idea of the contemporary theory of general relativity--or geometrodynamics--is the identification of matter with the structure of space-time. No entities foreign to space-time, like masses, charges, or independent fields are needed, and physics thus becomes identical with the geometry of space-time. This idea implies a philosophical description of the universe that is monistic and organic, characterized by an all-encompassing interdependence of events. Moreover, it is an idea with deep roots in the history of philosophy. For these reasons, (...) the author of this important study strives to clarify these philosophical and historical issues before proceeding to the details of the physical theory of geometrodynamics. (shrink)

A set of six publications have introduced, commented, criticized and defended Amir Alexander’s book on infinitesimals published in 2014. The aim of the following article is to bring the various arguments together.

This article presents an integrative conceptual framework for linking corporate social performance, stakeholders, and quality of management, then tests this framework empirically. Results provide strong support for the hypothesis that perceived quality of management can be explained by the quality of performance with respect to specific primary stakeholders: owners, employees, customers, and (marginally) communities, but treatment of ecological environmental considera- tions is not a significant factor.

Norman tries to link the ecological and constructivist approaches to the dorsal and ventral pathways of the visual system. Such a link implies that the distinction is not only one of approach, but that different issues are studied. Norman identifies these issues as perception and action. The influence of contextual illusions is critical for Norman's arguments. We point out that fast (dorsal) actions can be fooled by contextual illusions while (ventral) perceptual judgements can be insensitive to them. We conclude that (...) both approaches can, in principle, be used to study visual information processing in both pathways. (shrink)

Mammals have an XX:XY system of chromosomal sex determination in which a small heterochromatic Y controls male development. The Y contains the testis determining factor SRY, as well as several genes important in spermatogenesis. Comparative studies show that the Y was once homologous with the X, but has been progressively degraded, and now consists largely of repeated sequences as well as degraded copies of X linked genes. The small original X and Y have been enlarged by cycles of autosomal addition (...) to one partner, recombination onto the other and continuing attrition of the compound Y. This addition–attrition hypothesis predicts that the pseudoautosomal region of the human X is merely the last relic of the latest addition. Genes (including SRY) on the conserved or added region of the Y evolved functions in male sex determination and differentiation distinct from the general functions of their X‐linked partners. Although the gonadogenesis pathway is highly conserved in vertebrates, its control has probably changed radically and rapidly in vertebrate – even mammalian – evolution. (shrink)