We examine a publication by Euler, De novo genere oscillationum, written in 1739 and published in 1750, in which he derived for the first time, the differential equation of the (undamped) simple harmonic oscillator under harmonic excitation, namely the motion of an object acted on by two forces, one proportional to the distance traveled, the other varying sinusoidally with time. He then developed a general solution, using two different methods of integration, making extensive use of direct and inverse sine and (...) cosine functions. After much manipulation of the resulting equations, he proceeded to an analysis of the periodicity of the solutions by varying the relation between two parameters, $$a$$ and $$b$$, eventually identifying the phenomenon of resonance in the case where $$2b=a$$. This is shown to be nothing more than the equality between the driving frequency and the natural frequency of the oscillator, which, indeed, characterizes the phenomenon of resonance. Graphical representations of the behavior of the oscillator for different relations between these parameters are given. Despite having been a brilliant discovery, Euler’s publication was not influential and has been neglected by scholars and by specialized publications alike. (shrink)

this article is based on a paper that I presented during the annual meeting of the Society for the Advancement of American Philosophy, as a keynote speaker in the Coss Dialogue sessions. I was pleasantly surprised to hear that most participants of SAAP use the term "American" in its continental, rather than in the US-centric sense. I am glad that many of the philosophers of this community of knowledge have opened their dialogues to the voices and experiences south of the (...) Río Bravo. We are living during very difficult times in which cultures and practices of violence, as well as aggressive exclusion and intolerance, are affecting our communities on both sides of the border. In this context of multiple... (shrink)

He then proceeds with an examination of the picture theory developed by Wittgenstein, Carnap, and Goodman, and concludes with an examination of Patricia Churchland, Ruth Millikan, Robert Cummins, and Mark Rollins. The use of the historical development of representationalism to pose a central problem in contemporary cognitive science is unique.

Scholars and practitioners across domains are increasingly concerned with algorithmic transparency and opacity, interrogating the values and assumptions embedded in automated, black-boxed systems, particularly in user-generated content platforms. I report from an ethnography of infrastructure in Wikipedia to discuss an often understudied aspect of this topic: the local, contextual, learned expertise involved in participating in a highly automated social–technical environment. Today, the organizational culture of Wikipedia is deeply intertwined with various data-driven algorithmic systems, which Wikipedians rely on to help manage (...) and govern the “anyone can edit” encyclopedia at a massive scale. These bots, scripts, tools, plugins, and dashboards make Wikipedia more efficient for those who know how to work with them, but like all organizational culture, newcomers must learn them if they want to fully participate. I illustrate how cultural and organizational expertise is enacted around algorithmic agents by discussing two autoethnographic vignettes, which relate my personal experience as a veteran in Wikipedia. I present thick descriptions of how governance and gatekeeping practices are articulated through and in alignment with these automated infrastructures. Over the past 15 years, Wikipedian veterans and administrators have made specific decisions to support administrative and editorial workflows with automation in particular ways and not others. I use these cases of Wikipedia’s bot-supported bureaucracy to discuss several issues in the fields of critical algorithms studies; critical data studies; and fairness, accountability, and transparency in machine learning—most principally arguing that scholarship and practice must go beyond trying to “open up the black box” of such systems and also examine sociocultural processes like newcomer socialization. (shrink)

In this paper, the Helmholtz equation with quadratic damping themes is used for modeling the dynamics of a simple prey-predator system also called a simple Lotka–Volterra system. From the Helmholtz equation with quadratic damping themes obtained after modeling, the equilibrium points have been found, and their stability has been analyzed. Subsequently, the harmonic oscillations have been studied by the harmonic balance method, and the phenomena of resonance and hysteresis are observed. The primary and secondary resonances have been researched by the (...) multiple-scale method, and the conditions of stability of the amplitudes of oscillations are determined. Chaos is detected analytically by the Melnikov method and numerically using the basin of attraction, the bifurcation diagram, the Lyapunov exponent, the phase portrait, and the Poincaré section. The effects of all the parameters of the system are analyzed in detail, and special emphasis is placed on the new parameters. Through this analysis, the complex phenomena such as hysteresis, bistability, amplitude jump, resonances, and chaos have been obtained. The control of the parameters and the necessary conditions to control the aforementioned phenomena have been found. (shrink)

The results generated by experimentalists in psychology and economics haveled to numerous advances in the study of human decision making under risk.Camerer (1995) and Rabin (1998) provide excellent reviews of the relevantliterature. These results clearly display the gap between normative theoriesof ideal behavior and descriptive theories of observed behavior. The mostprominent result is loss aversion – the observation that a loss is given greatervalue than a gain of an equal size – and the resulting S-shaped utility function.Rabin puts the key (...) point as follows: ``Researchers have identified a pervasive feature of reference dependence: In a wide variety of domains, people are significantly more averse to losses than they are attracted to same size gains''(Rabin 1998, 13–14). In what follows, I will show that the ``wide variety of domains'' is wide indeed. In particular, I will review the effects of the S-shaped utility function on the resolution of the decision to commit a crime, to decision to violate professional ethics, and the decision to participate in a rebellion. (shrink)

I argue that the conjunctive distribution of permissibility over or, which is a puzzling feature of free-choice permission is just one instance of a more general class of conjunctive occurrences of the word, and that these conjunctive uses are more directly explicable by the consideration that or is a descendant of oper than by reference to the disjunctive occurrences which logicalist prejudices may tempt us to regard as semantically more fundamental. I offer an account of how the disjunctive uses of (...) or may have come about through an intermediate discourse-adverbial use of or, drawing a parallel with but, which, etymologically, is disjunctive rather than conjunctive and whose conjunctive uses seem to represent just such a discourse-adverbial application. (shrink)

Of articles which are submitted for publication in Philosophy, a surprisingly large proportion are about the views of Richard Rorty. Some, indeed, we have published. They, along with pretty well all the articles we receive on Professor Rorty, are highly critical. On the perverse assumption that there must be something to be said for anyone who attracts widespread hostility, it is only right to see what can be said in favour of Rorty's latest collection of papers, entitled, Truth and Progress,.

Name der Zeitschrift: Nietzsche-Studien Jahrgang: 42 Heft: 1 Seiten: 298-298.

I shall understand physical determinism as the doctrine that every physical event has a physical event as its necessary and sufficient cause. This paper seeks to show that no one would be justified in holding this doctrine unless it could be shown to make successful predictions; and that such predictions could only be obtained if we assume the doctrine to be false.

The present comment on Solari and Natiello’s paper values their constructivist approach to Newtonian Mechanics. My critical point concerns only the link between the concept of force and phenomena. It will be shown that the idealised form of the law of inertia created by the authors avoids criticism of the law and that this law leads to the concept of force as the cause of acceleration. This concept appears in the authors’ reconstruction as an assumption. They add that this assumption (...) must be contrasted with experiments. Following this, I address an experiment, in which the force that is taken as the cause of acceleration, is not present in the phenomenon at stake. As it thus does not satisfy the property of locality, which any cause has to, force cannot be a cause. (shrink)

This chapter affirm a thinking of time as difference. It does not claim to figure time as such, because whatever time is, time remains essentially in excess of figuration. Instead this chapter elaborates instances of the effort to think time as difference in Aristotle, Henri Bergson, and Luce Irigaray. I suggest that each of these philosophers affirms the fundamentally elusive nature of time while also articulating valuable ideas for thinking time as difference.

In the coverage of the problems of war and peace in Catholicism, researchers sometimes omit the regional component of their manifestation. We are talking about local traditions in Catholicism, which have their own specific approach to solving this problem and sometimes may differ significantly from the "conventional" position. The study of this field is necessary because in the delineated field the position of those theologians who were on the "outskirts" of Catholicism in the intercultural dialogue, on the one hand, led (...) to a deviation from the humanistic orientation about Catholicism. the war. An example would be the concept of a "holy war" of the Crusades, which had the anti-Islamic rhetoric generated not only in the West but also in the East. (shrink)

Elsewhere I have argued that the notion of a normative agent-neutral reason is undermined by certain views on reasons; the existence of agent-neutral reasons can be questioned. Here I shall not repeat my doubts but rather address a way of expressing the distinction that I had not considered and which would, if correct, put an end to my worries about the soundness of this dichotomy. The idea, which was suggested to me by Douglas Portmore is that normative reasons are facts (...) of a peculiar kind: they are subjunctive facts of a certain kind. (shrink)

Invited talk at the so-called Thursday Lecture, Oct 25, at the Hoger Instituut voor Wijsbegeerte the International Programme at the Institute of Philosophy at the University of Leuven, Belgium. Focus was on the distinction between good and good-for.

An edited version of a talk between Urban and Toynbee on Radio Free Europe. The book concerns the nature of history as well as discussing Marxism and Christianity, the third world, and the effects of technology.

R. F. Atkinson; XIII*—Explanation in History, Proceedings of the Aristotelian Society, Volume 72, Issue 1, 1 June 1972, Pages 241–256, https://doi.org/10.1093/a.

Humans have been modifying plants and animals for millennia. The dawn of molecular genetics, however, has kindled intense public scrutiny and controversy. Crops, and the food products which include them, have dominated molecular modification in agriculture. Organisations have made unsubstantiated claims and scare mongering is common. In this textbook Paul Thompson presents a clear account of the significant issues - identifying harms and benefits, analysing and managing risk - which lie beneath the cacophony of public controversy. His comprehensive analysis looks (...) especially at genetically modified organisms, and includes an explanation of the scientific background, an analysis of ideological objections, a discussion of legal and ethical concerns, a suggested alternative - organic agriculture - and an examination of the controversy's impact on sub-Saharan African countries. His book will be of interest to students and other readers in philosophy, biology, biotechnology and public policy. (shrink)