Recent studies have shown that self‐explanation is an effective metacognitive strategy, but how can it be leveraged to improve students' learning in actual classrooms? How do instructional treatments that emphasizes self‐explanation affect students' learning, as compared to other instructional treatments? We investigated whether self‐explanation can be scaffolded effectively in a classroom environment using a Cognitive Tutor, which is intelligent instructional software that supports guided learning by doing. In two classroom experiments, we found that students who explained their steps during problem‐solving (...) practice with a Cognitive Tutor learned with greater understanding compared to students who did not explain steps. The explainers better explained their solutions steps and were more successful on transfer problems. We interpret these results as follows: By engaging in explanation, students acquired better‐integrated visual and verbal declarative knowledge and acquired less shallow procedural knowledge. The research demonstrates that the benefits of self‐explanation can be achieved in a relatively simple computer‐based approach that scales well for classroom use. (shrink)

Este artículo es un acercamiento a la temática, construcción y recursos humorísticos de la obra Las miserables (2016) de la compañía Las Reinas Chulas, con el objeto de reconocer al cabaret y el humor como recursos de un artivismo que puede incidir en cambios culturales, políticos o sociales. Esta compañía es un referente obligado para comprender y valorar al teatro-cabaret contemporáneo mexicano que se ha caracterizado, desde sus orígenes en los años 80, por su crítica creativa y compromiso con los (...) feminismos y la comunidad LGTB+. Teniendo como telón de fondo la Revolución Francesa, la obra se refiere a los derechos de las mujeres, la diversidad sexual y la violencia de género. Su oportuno estreno en 2016, coincidió con las discusiones para la redacción de la actual Constitución de la Ciudad de México. (shrink)

The present work explores interspecies intersubjectivity, including its content and limitations, through the paradigmatic instances of such relationships that are present among companion species. I aim to defend the claim that meaningful relationships are possible and do in fact occur between humans and nonhuman animals by appealing to both philosophical and empirical literature. I will also begin to delineate the content and limitations of these interspecies relationships.

What did God mean to F.H. Bradley? Bradley’s style and subtle philosophical approach makes it difficult to ascertain precisely what his settled thoughts were on this issue. He does say, for example, quite a lot as to what God is not. This essay will initially follow out this negative reading. This latter enterprise entails comparisons, first, with philosophy, or more appropriately the ‘metaphysical impulse’, second, with morality, and third, with history. Having followed out the more negative arguments, the essay turns (...) to what religion is for Bradley. This is intrinsically more difficult. The discussion elicits here some help from the other idealist thinkers who were close readers of Bradley. Almost surprisingly, Bradley does comment substantively, if briefly, on issues of faith, miracle, atonement, prayer, church going, and clerics. The most significant theological point to arise in both Bradley is the significance of St. Paul’s writings. The Pauline ‘justification by faith’ becomes a repeated motif. However, there still remains an ambiguous relation of God and religion to ‘social life’ or ‘sociality’, which is explored more carefully at the conclusion of the essay. The essay finally argues that Bradley’s highly nuanced response to religion and God embodies paradoxical and unresolved elements which encapsulate, unwittingly, a dilemma at the heart of the Idealist conception of religion. (shrink)

The paper is premised on the well-recorded fact that R.B. Haldane, throughout his working life, remained fascinated with German idealist philosophy. The paper unravels Haldane’s own perception of the relation between his philosophical interests and his diverse policy-orientated work at the beginning of the twentieth century. Many commentators have noted this relation but often pass over it as a curious detail of his biography. The most basic tool his philosophy gave him was a way of analysing problems. This philosophical stance (...) was not an ex post facto rationalisation but conversely was always his first thought on encountering a problem. To solve a policy problem one has to identify the leading ideas of that particular mode of human experience. Haldane believed that finding such rational principles underlying all forms of experience was the first duty of a politician, lawyer or civil servant. He contended that this painstaking ideational analysis would ultimately lead to the most effective policy solutions. The paper focuses first on Haldane’s initial encounter with German philosophical culture in both Edinburgh and Göttingen, second, it unpacks the key philosophical themes which characterize his approach, derived largely from his reading of Hegel’s Science of Logic. Thirdly, it turns - in the light of his philosophical beliefs - to his overt commitments to policy developments in the Edwardian new liberalism, military reform, administrative and civil service policy reorganisation, and finally his extensive work in education policy, particularly in the university sector. (shrink)

That literary scholarship is experiencing an "ethical turn" has become something of a commonplace, and seminal to this "turn" is the use of literary works as examples in moral-philosophical arguments. So far, however, ethical criticism has dealt almost exclusively with narrative texts—little work has been done on poetry. I argue that considering poetry in this context not only expands the corpus of exemplary works but also reveals methodological caveats applicable to ethical critics of poetry and fiction alike. Poetic examples raise (...) new doubts about the moral authority of literature—doubts elided in the narrative-based discussions that currently prevail. (shrink)

This paper studies some model-theoretic properties of special groups of finite type. Special groups are a first-order axiomatization of the algebraic theory of quadratic forms, introduced by Dickmann and Miraglia, which is essentially equivalent to abstract Witt rings. More precisely, we consider elementary equivalence, saturation, elementary embeddings, quantifier elimination, stability and Morley rank.

Abstract.We use a model theoretic approach to investigate properties of local-global principles for positive primitive formulas in spaces of orderings, such as the existence of bounds and the axiomatizability of local-global principles. As a consequence we obtain various classes of special groups satisfying local-global principles for all positive primitive formulas, and we show that local-global principles are preserved by some natural constructions in special groups.

Le modèle d’Ising décrit les interactions locales entre des flèches fixées aux nœuds d’un réseau et orientées vers le haut ou vers le bas. Ce modèle mathématique, très abstrait, mais aussi très simple, est l’un des plus étudiés en physique moderne. Cet article s’intéresse à la nature de ce modèle et à ses fonctions épistémiques. Nous montrons qu’il a d’abord rempli une fonction représentationnelle en tant que « modèle approché » du magnétisme. Ensuite, comme « modèle-jouet » il a permis (...) la compréhension qualitative des transitions de phase. C’est enfin comme « modèle minimal » pour l’étude des phénomènes critiques qu’il remplit désormais une fonction explicative. (shrink)

This paper deals with predicate logics involving two truth values (here referred to as bivalent logics). Sequent calculi for these logics rely on a general notion of sequent that helps to make the principles of excluded middle and non-contradiction explicit. Several formulations of the redundancy of cut are possible in these sequent calculi. Indeed, four different forms of cut can be distinguished. I prove that only two of them hold for positive sequent calculus (which is both paraconsistent and paracomplete) while (...) all of them hold for classical sequent calculus. As for complete and consistent sequent calculi (which are respectively paraconsistent and paracomplete), I prove that they only admit one form of cut in addition to the two that hold for positive sequent calculus. (shrink)

In philosophical studies regarding mathematical models of dynamical systems, instability due to sensitive dependence on initial conditions, on the one side, and instability due to sensitive dependence on model structure, on the other, have by now been extensively discussed. Yet there is a third kind of instability, which by contrast has thus far been rather overlooked, that is also a challenge for model predictions about dynamical systems. This is the numerical instability due to the employment of numerical methods involving a (...) discretization process, where discretization is required to solve the differential equations of dynamical systems on a computer. We argue that the criteria for numerical stability, as usually provided by numerical analysis textbooks, are insufficient, and, after mentioning the promising development of backward analysis, we discuss to what extent, in practice, numerical instability can be controlled or avoided. (shrink)

We characterize elementary equivalences and inclusions between von Neumann regular real closed rings in terms of their boolean algebras of idempotents, and prove that their theories are always decidable. We then show that, under some hypotheses, the map sending an L-structure R to the L-structure of definable functions from R n to R preserves elementary inclusions and equivalences and gives a structure with a decidable theory whenever R is decidable. We briefly consider structures of definable functions satisfying an extra condition (...) such as continuity. (shrink)

Geoffrey Hill’s prose has prompted longstanding critical controversy, much of which turns on the perceived difficulty, intransigence and anachronism of his oeuvre as a whole. This paper proposes that new ways to navigate this controversy can be found in Hill’s preoccupation with the exemplary dimensions of writing – that is, in his interest in the poet’s capacity to offer examples (positive and negative) to a community of readers. The discussion pays particular attention to the connections Hill’s reviews establish between style (...) and ethical choice and between literary difficulty and democracy; connections which are intertwined with his ethics of exemplarity in fundamental ways. The paper also engages with those dimensions of literary exemple-use which emerge in new or unusual ways in his prose: his presentation of ‘models’ or ideals for the organisation of civil society; his treatment of certain literary works as exemplars or embodiments of philosophical ideas; and his procedural tic of ‘sampling’ regularly for the purpose of chastisement the ‘bad example’ set by some of the works he criticises. (shrink)