The role of evolutionary theory at the origin of life is an extensively debated topic. The origin and early development of life is usually separated into a prebiotic phase and a protocellular phase, ultimately leading to the Last Universal Common Ancestor. Most likely, the Last Universal Common Ancestor was subject to Darwinian evolution, but the question remains to what extent Darwinian evolution applies to the prebiotic and protocellular phases. In this review, we reflect on the current status of evolutionary theory (...) in origins of life research by bringing together philosophy of science, evolutionary biology, and empirical research in the origins field. We explore the various ways in which evolutionary theory has been extended beyond biology; we look at how these extensions apply to the prebiotic development of (proto)metabolism; and we investigate how the terminology from evolutionary theory is currently being employed in state-of-the-art origins of life research. In doing so, we identify some of the current obstacles to an evolutionary account of the origins of life, as well as open up new avenues of research. (shrink)

Inleidend overzicht van de hoofdstromingen van de westerse filosofie van de presocratici tot heden.

To Aristotle, spoken words are symbols, not of objects in the world, but of our mental experiences related to these objects. Presently there are two major strands of interpretation of Aristotle’s concept of the linguistic sign. First, there is the structuralist account offered by Coseriu (Geschichte der Sprachphilosophie. Von den Anfängen bis Rousseau, 2003 [1969], pp. 65–108) whose interpretation is reminiscent of the Saussurean sign concept. A second interpretation, offered by Lieb (in: Geckeler (Ed.) Logos Semantikos: Studia Linguistica in Honorem (...) Eugenio Coseriu 1921–1981, 1981) and Weidemann (in: Schmitter (Ed.) Geschichte der Sprachtheorie 2. Sprachtheorien der abendländischen Antike, 1991), says that Aristotle’s concept of the linguistic sign is similar to the one presented in Ogden and Richard’s (The meaning of meaning: A study of the influence of language upon thought and of the science of symbolism, 1970 [1923]) semiotic triangle. This paper starts off with an introductory outline of the so-called phýsei-thései discussion which started during presocratic times and culminated in Plato’s Cratylus. Aristotle’s concept of the linguistic sign is to be regarded as a solution to the stalemate position reached in the Cratylus. Next, a discussion is offered of both Coseriu’s and Lieb’s analysis. We submit that Aristotle’s concept of the linguistic sign shows features of both Saussure’s and Ogden and Richards’s sign concept but that it does not exclusively predict one of the two. We argue that Aristotle’s concept of the linguistic sign is based on three different relations which together evince his teleological as well empiricist point of view: one internal (symbolic) relation and two external relations, i.e. a likeness relation and a relation katà synthéken. (shrink)

THE NATURE OF THINKING HAS PERSISTED in eluding attempts at definition. This, I will suggest, is because thinking is heterogeneous: there is no one thing that is called thinking. In this paper, I will describe five forms of thinking that are basic, in the sense that they are episodes of thinking that do not have as parts other episodes of thinking. My aim is not to suggest that every process or activity of thinking can be analyzed, without remainder, as a (...) compound of these five basic forms of thinking, plus perhaps a few other ones. The reason for turning to episodes of thinking that are not composed of further episodes of thinking is to show that thinking is heterogeneous in a nontrivial sense. Although all five basic forms of thinking are episodes that are in some sense "about" or "directed toward" something, it will become clear that beyond this property of intentionality they do not share a single further property. (shrink)

Discussions on the status of definitions of life have long been dominated by a position known as definitional pessimism. Per the definitional pessimist, there is no point in trying to define life. This claim is defended in different ways, but one of the shared assumptions of all definitional pessimists is that our attempts to define life are attempts to provide a list of all necessary and sufficient conditions for something to count as alive. In other words, a definition of life (...) is a strict, descriptive definition. Against this, several pragmatic alternatives have been put forward. On these pragmatic accounts, definitions of life are not strictly, but rather loosely descriptive. Their purpose is not to be true, but to be useful to scientists by guiding scientific practice. More recently, this position has come under attack for not being able to explain how our attempts to define life are connected to scientific progress within the biological sciences. Here, I argue to the contrary by showing how pragmatic definitions of life can be, and in fact are, conducive to scientific progress. Additionally, I show how the pragmatic account of definitions of life can be brought to bear upon our normative discussions involving definitions of life. (shrink)

Cet article traite du rapport de l’engagement et de la connaissance sociologique, en prenant pour terrain la problématique des rapports sociaux de sexe et le féminisme. Plus exactement, c’est la question de l’utopie et de sa fonction heuristique et cognitive éventuelle pour la recherche qui fait l’objet de l’étude. Après avoir rappelé et présenté certains des travaux les plus importants sur la question, il est procédé à une tentative d’élucidation des vertus cognitives de l’utopie féministe matérialiste pour les recherches sur (...) le genre, la différence des sexes et la domination masculine. La conclusion revient sur les implications épistémologiques et méthodologiques de cette étude.This article is devoted to the study of the relationship between engagement and sociological knowledge, in the field of research relevant to gender and feminism. More exactly, the question concerns the heuristic and cognitive functions of utopia. Firstly, the author introduces some of the most significant works on the subject. Then, he tries to clarify the cognitive virtues of the feminist utopia for a better understanding of gender, sex difference and male domination. The conclusion reconsiders the epistemological and methodological implications of the study. (shrink)

The key to this study lies in my own identity as a researcher who specializes in the fifteenth century and Franciscan reforms, especially the confrontation in eastern Central Europe between the theory of the via media based on a return to the Martianian Constitutions, and the Observance sub vicariis brought by Giovanni of Capistrano when he crossed the Alps in 1451.2 The major aspect of this is a view on the “pre-history” of the Libellus ad Leonem, which was written in (...) 1513 by Paolo Giustiniani and Pietro Quirini in preparation of the Fifth Lateran Council. This “pre-history” concerns a century of transformations of the links between the Observant reforms, humanist culture and the.. (shrink)

: Catholic teaching has no moral difficulties with research on stem cells derived from adult stem cells or fetal cord blood. The ethical problem comes with embryonic stem cells since their genesis involves the destruction of a human embryo. However, there seems to be significant promise of health benefits from such research. Although Catholic teaching does not permit any destruction of human embryos, the question remains whether researchers in a Catholic institution, or any researchers opposed to destruction of human embryos, (...) could participate in research on cultured embryonic stem cells, or whether a Catholic institution could use any therapy that ultimately results from such research. This position paper examines how such research could be conducted legitimately in a Catholic institution by using an ethical analysis involving a narrative context, the nature of the moral act, and the principle of material cooperation, along with references to significant ethical assessments. It also offers tentative guidelines that could be used by a Catholic institution in implementing such research. (shrink)

Ramsey’s theorem asserts that every k-coloring of $[\omega ]^n$ admits an infinite monochromatic set. Whenever $n \geq 3$, there exists a computable k-coloring of $[\omega ]^n$ whose solutions compute the halting set. On the other hand, for every computable k-coloring of $[\omega ]^2$ and every noncomputable set C, there is an infinite monochromatic set H such that $C \not \leq _T H$. The latter property is known as cone avoidance.In this article, we design a natural class of Ramsey-like theorems encompassing (...) many statements studied in reverse mathematics. We prove that this class admits a maximal statement satisfying cone avoidance and use it as a criterion to re-obtain many existing proofs of cone avoidance. This maximal statement asserts the existence, for every k-coloring of $[\omega ]^n$, of an infinite subdomain $H \subseteq \omega $ over which the coloring depends only on the sparsity of its elements. This confirms the intuition that Ramsey-like theorems compute Turing degrees only through the sparsity of its solutions. (shrink)

The ‘right to be forgotten’ has been labelled censorship and disastrous for the freedom of expression. In this paper, we explain that effecting the ‘right to be forgotten’ with regard to search results is ‘censorship’ at the level of information retrieval. We however claim it is the least heavy yet most effective means to get the minimum amount of censorship overall, while enabling people to evolve beyond their past opinions. We argue that applying the ‘right to be forgotten’ to search (...) results is not a question of just ‘censoring’ search engines, but that seen from a broader perspective we—as society—will inevitably have to deal with developments in information technologies and choose between three types of ‘censorship’: censorship of original sources, that is on the level of information storage; censorship on the level of the initial encoding of that information or censorship on the level of information retrieval. These three levels at which ‘censorship’ can take place are the three basic elements of the memory process; whether biological, technological or hybrid with the use of mnemonic technologies. Applying censorship as a means of ‘forgetting’ in the collective hybrid memory of the Web enables us to counter—at least partially—the functioning of the Web as a ‘Panopticon over Time’. (shrink)

The question of the Hegelian heritage within the Marxian dialectic is a classic one that is still an open one, after more than a century of fruitful and various inquiry. In order to tackle the issue from a new perspective, we must first distinguish between, on the one hand, the subjective dialectic, or logic of Marxian thought, which is clearly inherited from Hegel, and, on the other hand, the objective dialectic, or logic of reality itself, which Marx arrived at by (...) way of a frontal opposition to his master, even as he took up the latter’s “rational kernel” in order to invert it, substituting for Hegel’s idealist philosophy of creation a materialist conception of production and replacing the logic of negativity by a logic of produ-activity. Thus conceptualized by Marx, the gnoseological dialectic and dialectical materialism interact rationally. This enables us to renew the foundations of a dialectical materialism. Unrelated to stalinist « diamat », such a conception is well equipped to demonstrate its effectiveness for the knowledge and understanding of realities, both in terms of their irreducible material singularity, apprehended according to their constitutive historicity, and as elements of a certain real totality which is in process. (shrink)

The purpose of this study was to describe the variations in literacy achievement among native and non-native upper primary school children (grades three to six) in the Netherlands. Various measures of word decoding, reading literacy and writing skill were collected from 1091 native Dutch children, 753 children with a former Dutch colonial background and 580 children with a Mediterranean background. The results showed the non-native children to lag behind their native peers on all of the tasks, although the differences on (...) the decoding and writing tasks were fairly small. The Mediterranean children scored significantly lower than the ex-colonial children on all of the reading literacy tasks but equally high on the decoding and writing tasks. For both the native and non-native children, the same underlying factor structure was found to characterise their literacy achievement. Grade and ethnic status consistently predicted the factor scores for Word Decoding, Reading Literacy and Text Writing. In addition, socio-economic status (SES) predicted Reading Literacy and the variable sex predicted Writing Skills. (shrink)

Although robots can contribute to the understanding of biological behavior, they fail to model the processes by which humans cope with their environment. Both development and learning are characterized by complex relationships that require constant modification. Given present technology, robots can only model behaviors in specific situations and during discrete stages. Robots cannot master the complex relationships that are the hallmark of human behavior.

A function is diagonally non-computable if it diagonalizes against the universal partial computable function. D.n.c. functions play a central role in algorithmic randomness and reverse mathematics. Flood and Towsner asked for which functions h, the principle stating the existence of an h-bounded d.n.c. function implies Ramsey-type weak König’s lemma. In this paper, we prove that for every computable order h, there exists an ω\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\omega}$$\end{document} -model of h-DNR which is not a not (...) model of the Ramsey-type graph coloring principle for two colors and therefore not a model of RWKL. The proof combines bushy tree forcing and a technique introduced by Lerman, Solomon and Towsner to transform a computable non-reducibility into a separation over ω\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\omega}$$\end{document} -models. (shrink)

A better understanding of media effects on immigration attitudes is crucial for policy development and innovation. While many studies have focused on immigration discourses or the salience of this issue in print media and broadcast TV, few have looked at how different “media diets” influence immigration attitudes. Using two-wave panel data composed of 14,480 observations (7,240 individuals) from nine EU countries, this article specifically analyses the role of online and social media news consumption as well as media diet diversity on (...) Europeans’ perceptions of the economic and cultural impact of immigration. The results show that relying primarily on online or social media (compared to print newspapers) to get news, consuming news less frequently, or having a less diverse media diet all significantly and negatively influence people’s perceptions of the impact of immigration. Results and implications are discussed in light of today’s changing media landscape and news consumption habits. (shrink)

The horse was essential to past human societies but became a recreational animal during the twentieth century as the world became increasingly mechanized. As the author reviews here, recent studies of ancient genomes have revisited the understanding of horse domestication, from the very early stages to the most modern developments. They have uncovered several extinct lineages roaming the far ends of Eurasia some 4000 years ago. They have shown that the domestic horse has been significantly reshaped during the last millennium (...) and experienced a sharp decline in genetic diversity within the last two centuries. At a time when no truly wild horses exist any longer, this calls for enhanced conservation in all endangered populations. These include the Przewalski's horse native to Mongolia, and the many local breeds side‐lined by the modern agenda, but yet representing the living heritage of over five millennia of horse breeding. (shrink)

Nous présentons une étude fondée sur un corpus de transcriptions de consultations médicales, dans le cadre d’un projet interdisciplinaire qui explore la question des inégalités sociales de santé. L’objet de cet article est de montrer comment, en tant que linguistes familiers du traitement outillé des corpus, nous avons choisi d’aborder ce matériau qui fait l’objet de questionnements disciplinaires complémentaires, et quels éléments de caractérisation spécifiques nous sommes en mesure d’apporter en réponse à une demande émanant de la sphère médicale.

Nous présentons une étude fondée sur un corpus de transcriptions de consultations médicales, dans le cadre d’un projet interdisciplinaire qui explore la question des inégalités sociales de santé. L’objet de cet article est de montrer comment, en tant que linguistes familiers du traitement outillé des corpus, nous avons choisi d’aborder ce matériau qui fait l’objet de questionnements disciplinaires complémentaires, et quels éléments de caractérisation spécifiques nous sommes en mesure d’apporter en réponse à une demande émanant de la sphère médicale.

Découverte en remploi dans l’angle du mur d’un bâtiment monumental d’époque impériale, au Sud‑Ouest de l’agora d’Amathonte, cette dédicace inédite en l’honneur des souverains lagides Ptolémée X et Bérénice III, désignés comme « dieux sauveurs », est un cas unique à Chypre. D’abord en raison de la rareté des attestations épigraphiques de ce couple royal qui gouverna depuis Alexandrie l’Empire lagide entre 101 et 88 ; ensuite, parce que l’épithète θεῶν Σωτήρων ne leur est que très rarement attribuée dans la (...) documentation, y compris dans les sources papyrologiques. Enfin, une étude de l’autel et de sa fonction comme élément de remplissage d’un mur à double pare­ment met aussi en lumière certaines caractéristiques de construction du monument où fut trouvé le document. (shrink)

Conformément au protocole défini avec les autorités chypriotes, une opération d’étude et de fouille de la zone du bassin naturel, à l’emplacement supposé du port interne d’Amathonte, a débuté en 2014. Une première campagne de fouilles s’est tenue du 15 septembre au 10 octobre 2014. Elle fut précédée d’une enquête géomorphologique au printemps de la même année. La seconde fouille a eu lieu du 31 août au 25 septembre 2015. Des campagnes intermédiaires d’étude du matériel, essentiellement sur le...