There are two problems Analytical Geometry with facing anyone who studies this discipline: define the nature of the locus represented by the general equation 2do degree in two or three variables: That curve represents the plane? What surface is in space? These two problems are posed and solved by applying the study of matrices and spectral theory.

There are two problems Analytical Geometry with facing anyone who studies this discipline: define the nature of the locus represented by the general equation 2do degree in two or three variables: That curve represents the plane? What surface is in space? These two problems are posed and solved by applying the study of matrices and spectral theory.

The purpose of this note consists of discrete rational reconstruction which took place during the years 1609-1630 and 1630-1666, ie, the year of the publication of their Astronomia Nova and the year of death of the great German astronomer Johannes Kepler, and the subsequent range from desperate to knowledge of these laws of planetary motion, by the English scientist Sir Isaac Newton.

There are two problems Analytical Geometry with facing anyone who studies this discipline: define the nature of the locus represented by the general equation 2do degree in two or three variables: That curve represents the plane? What surface is in space? These two problems are posed and solved by applying the study of matrices and spectral theory.

En las siguientes notas, se pretende realizar una pequeña digresión, relativa a los tópicos mencionados en el título de la misma; puesto que tales no fueron abordados en el pasado Homenaje realizado por el Instituto de Física, de la U de A. Consideramos más que perogrullo tratar de justificar la importancia y vigencia en el desarrollo de las Matemáticas y Física a lo largo del Siglo XVIII como en la actualidad de tales temas; por ende presentamos una breve descripción de (...) los métodos y problemas atacados por Euler y sus contemporáneos empleando dicha Heurística. De antemano señalamos que éstas, constituyen un intento vehementemente pauperrimo, para honrar lamemoria de quien es considerado el Shakespeare de lasMatemáticas:Universal, rico en detalles e inagotable. (shrink)

Timely and provocative essays on bioethical questions brought to the forefront by the bioterrorist threat.

Epistemology has for a long time focused on the concept of knowledge and tried to answer questions such as whether knowledge is possible and how much of it there is. Often missing from this inquiry, however, is a discussion on the value of knowledge. In The Value of Knowledge and the Pursuit of Understanding Jonathan Kvanvig argues that epistemology properly conceived cannot ignore the question of the value of knowledge. He also questions one of the most fundamental assumptions in (...) epistemology, namely that knowledge is always more valuable than the value of its subparts. Taking Platos' Meno as a starting point of his discussion, Kvanvig tackles the different arguments about the value of knowledge and comes to the conclusion that knowledge is less valuable than generally assumed. Clearly written and well argued, this 2003 book will appeal to students and professionals in epistemology. (shrink)

Humans often attribute the things that happen to one or another actual cause. In this chapter, we survey some recent philosophical and psychological research on causal attribution. We pay special attention to the relation between graphical causal modeling and theories of causal attribution. We think that the study of causal attribution is one place where formal and experimental techniques nicely complement one another.

This title presents a comprehensive guide to interpretative phenomenological analysis (IPA) which is an increasingly popular approach to qualitative inquiry taught to undergraduate and postgraduate students today.

" Here Jonathan Lear argues that irony is one of the tools we use to live seriously, to get the hang of becoming human.

In this paper I argue in favour of a new definition of presentism that I call ‘existence presentism’ (EP). Typically, presentism is defined as the thesis that ‘only present objects exist’, or ‘nothing exists that is non-present’.1 I assume these statements to be equivalent. I call these statements of presentism ‘conventional presentism’ (CP). First, in §2, I rehearse arguments due to Ulrich Meyer that purport to show that presentism is not adequately defined as CP. In §§2.1–2.4 I show that considerations (...) of the sort raised by Meyer infect attempts to define presentism, due to Thomas Crisp, Tom Stoneham, and Theodore Sider. Thus the first half of the paper is constituted by a negative project that looks to show how extant definitions of presentism fail. In the second half of the paper, I continue in the negative theme in §3, before laying out EP and demonstrating that it solves the problems faced by CP and offering explanations of how to make sense of certain key notions that lie at the heart of EP. I conclude that EP is preferable to CP. (shrink)

The authors consider the nature of explanatory models in the social sciences in order to suggest ways in which conceptual systems differ. They suggest that, in many cases, theorists, researchers and clinicians can utilize insights from rival models in building their own models, without sacrificing the integrity of their own work.

Aging and death -- Elimination -- Early death -- Drought -- Life cycles.

Much discussion about experimental philosophy and philosophical methodology has been framed in terms of the reliability of intuitions, and even when it has not been about reliability per se, it has been focused on whether intuitions meet whatever conditions they need to meet to be trustworthy as evidence. But really that question cannot be answered independently from the questions, evidence for what theories arrived at by what sorts of inferences? I will contend here that not just philosophy's sources of evidence, (...) but also its inferential resources, are in great need of closer examination. (shrink)

Evidentialism is the thesis that all reasons to believe p are evidence for p. Pragmatists hold that pragmatic considerations – incentives for believing – can also be reasons to believe. Nishi Shah, Thomas Kelly and others have argued for evidentialism on the grounds that incentives for belief fail a ‘reasoning constraint’ on reasons: roughly, reasons must be considerations we can reason from, but we cannot reason from incentives to belief. In the first half of the paper, I show that this (...) argument fails: the claim that we cannot reason from incentives is either false or does not combine with the reasoning constraint to support evidentialism. However, the failure of this argument suggests an alternative route to evidentialism. Roughly, reasons must be premises of good reasoning, but it is not good reasoning to reason from incentives to belief. The second half of the paper develops and defends this argument for evidentialism. (shrink)

This article gives an overview of some recent debates about the relationship between reasons and rational requirements of coherence - e.g. the requirements to be consistent in our beliefs and intentions, and to intend what we take to be the necessary means to our ends.

Research on the capacity to understand others' minds has tended to focus on representations ofbeliefs,which are widely taken to be among the most central and basic theory of mind representations. Representations ofknowledge, by contrast, have received comparatively little attention and have often been understood as depending on prior representations of belief. After all, how could one represent someone as knowing something if one does not even represent them as believing it? Drawing on a wide range of methods across cognitive science, (...) we ask whether belief or knowledge is the more basic kind of representation. The evidence indicates that nonhuman primates attribute knowledge but not belief, that knowledge representations arise earlier in human development than belief representations, that the capacity to represent knowledge may remain intact in patient populations even when belief representation is disrupted, that knowledge (but not belief) attributions are likely automatic, and that explicit knowledge attributions are made more quickly than equivalent belief attributions. Critically, the theory of mind representations uncovered by these various methods exhibits a set of signature features clearly indicative of knowledge: they are not modality-specific, they are factive, they are not just true belief, and they allow for representations of egocentric ignorance. We argue that these signature features elucidate the primary function of knowledge representation: facilitating learning from others about the external world. This suggests a new way of understanding theory of mind – one that is focused on understanding others' minds in relation to the actual world, rather than independent from it. (shrink)

Causal claims are context sensitive. According to the old orthodoxy (Mackie 1974, Lewis 1986, inter alia), the context sensitivity of causal claims is all due to conversational pragmatics. According to the new contextualists (Hitchcock 1996, Woodward 2003, Maslen 2004, Menzies 2004, Schaffer 2005, and Hall ms), at least some of the context sensitivity of causal claims is semantic in nature. I want to discuss the prospects for causal contextualism, by asking why causal claims are context sensitive, what they are sensitive (...) to, and where they are sensitive to it. (shrink)

The study of conscious experience per se has not kept pace with the dramatic advances in PET, fMRI and other brain-scanning technologies. If anything, the standard approaches to examining the 'view from within' involve little more than cataloguing its readily accessible components. Thus the study of lived subjective experience is still at the level of Aristotelian science, leading to a widespread scepticism over the possibility of a truly scientific study of conscious experience. Drawing on a wide range of approaches -- (...) from phenomenology to meditation -- The View From Within examines the possibility of a disciplined approach to the study of subjective states. The focus is on the practical issues involved. (shrink)

Many philosophers have been attracted to the view that reasons are premises of good reasoning – that reasons to φ are premises of good reasoning towards φ-ing. However, while this reasoning view is indeed attractive, it faces a problem accommodating outweighed reasons. In this article, I argue that the standard solution to this problem is unsuccessful and propose an alternative, which draws on the idea that good patterns of reasoning can be defeasible. I conclude by drawing out implications for the (...) debate over pragmatic reasons for belief and other attitudes and for one influential form of reductionism about the normative. (shrink)

According to the TDT, no singular propositions about an individual and no "thisnesses" of individuals exist prior to the existence of the indivi­dual in question, where a thisness "is the property of being x, or of being identical with x" and a "singular proposition about an individual x is a proposition that involves or refers to x directly, perhaps by having x or the thisness of x as a constituent, and not merely by way of x's qualitative properties or relations (...) to other individuals" (p. 315) The support for this position comes from two sources, according to Adams. (shrink)

This paper reconstructs Margaret Cavendish’s theory of the metaphysics of artifacts. It situates her anti-mechanist account of artifactual production and the art-nature distinction against a background of Aristotelian, Scholastic, and mechanist theories. Within this broad context, it considers what Cavendish thinks artisans can actually do, grounding her terminological stipulation that there is no genuine generation in nature in a commitment to natural and artistic production as the mere rearrangement of bodies. Bodies themselves are identified, in a conceptually Ockhamist manner, with (...) their figures, so that the resulting theory of mere rearrangement is Scholastically respectable. The paper also offers literal interpretations, focused narrowly on the philosophical content of her theories of art and artifacts, of her claims that art concerns only “nature’s sporting or playing actions”, that its products are “deformed and defective”, and that they are “at best …mixt or hermaphroditical.". (shrink)

A much discussed morpheme in Semitic historical linguistics is the suffix *-n. Its reflexes include the energic in Classical Arabic, the ventive in Akkadian, and many languages with a [V – n – object pronoun] reflex. Explanations of its origins fall broadly into two camps. One sees it originally as a proto-Semitic verbal suffix, while the other derives it from a grammaticalization of an originally independent [deictic/presentative + object pronoun] element. This paper argues for the correctness of the second explanation, (...) to which end a general reconstruction of the historical development of the morpheme in West Semitic is developed, with particular attention given to Arabic. Although a modest and unobtrusive morpheme, it is argued that the linguistics of *-n is of considerable significance for conceptualizations of Arabic and Semitic historical linguistics. (shrink)

How is reality really manufactured? The idea of social construction has become a commonplace part of much social research, yet precisely what is constructed, how it is constructed, and what constructionism means are often left unclear or taken for granted. In this major work, Jonathan Potter explores the central themes raised by these questions. Representing Reality explores the different traditions in constructivist thought--including sociology of scientific knowledge; conversation analysis and ethnomethodology; and semiotics, poststructuralism, and postmodernism--to provide a lucid introduction (...) to several key strands of work that have overturned the way we think about facts and descriptions. Potter illustrates his points throughout with varied and engaging examples taken from newspaper stories, relationship counseling sessions, accounts of paranormal events, social workers' assessments of violent parents, informal talk between program organizers, political arguments, and everyday conversations. Representing Reality offers the student and scholar in social psychology, rhetoric and discourse, and related fields a critical introduction to constructivism. (shrink)

Serena Olsaretti brings together new essays by leading moral and political philosophers on the nature of desert and justice, their relations with each other and with other values.

Cicero may be best known as a politician, but he was also one of the few significant Roman writers of philosophy. Powell presents a new and exciting selection of current scholarly work on this neglected side of him, establishing Cicero firmly as a serious philosophical writer of continuing importance and relevance.

Jonathan Y. Tsou examines and defends positions on central issues in philosophy of psychiatry. The positions defended assume a naturalistic and realist perspective and are framed against skeptical perspectives on biological psychiatry. Issues addressed include the reality of mental disorders; mechanistic and disease explanations of abnormal behavior; definitions of mental disorder; natural and artificial kinds in psychiatry; biological essentialism and the projectability of psychiatric categories; looping effects and the stability of mental disorders; psychiatric classification; and the validity of the (...) DSM's diagnostic categories. The main argument defended by Tsou is that genuine mental disorders are biological kinds with harmful effects. This argument opposes the dogma that mental disorders are necessarily diseases that result from biological dysfunction. Tsou contends that the broader ideal of biological kinds offers a more promising and empirically ascertainable naturalistic standard for assessing the reality of mental disorders and the validity of psychiatric categories. (shrink)

Integrity ought logically to be a particularly important concept within political science. If those acting within the political system do not have integrity, our ability to trust them, to have confidence in their actions, and perhaps even to consider them legitimate can be challenged. Indeed, the very concept of integrity goes some way towards underwriting positive views of political actors. Yet, despite this importance, political science as a discipline has perhaps focused too little on questions of integrity. Where political science (...) has looked at the subject of integrity, it has often done so without using the specific linguistic formulation “integrity”. Most commonly, the focus has instead been on “corruption”—a strand of research which has produced results that cannot always be translated into discussions of integrity, by virtue of its narrower focus upon the “negative pole” of public ethics. Other measures, such as “Quality of Government”, focus on positive attributes, notably impartiality, but this also fails fully to capture the notion of integrity: dishonesty can be impartial. Specific formal “codes” used within public life and among political practitioners can be much more nuanced than the most widely used measures, and can be much closer to what we understand—academically—as “integrity”. This paper argues that the hard conceptual and empirical work of elaborating integrity into a fully operationalizable concept offers the potential reward of an analytical concept that is more closely aligned with political reality. (shrink)

In this introduction we explore a number of puzzles that arise concerning epistemic autonomy, and introduce the sections and chapters of the book. There are four broad types of puzzles to be explored, corresponding to the four sections of the book. The first set of puzzles concerns the nature of epistemic autonomy. Here, questions arise such as what is epistemic autonomy? Is epistemic autonomy valuable? What are we epistemically autonomous about? The second set of puzzles concern epistemic paternalism. Paternalistic acts (...) interfere with an agent’s autonomy. Here, questions arise concerning the permissibility of epistemic paternalism as well the extension of epistemically paternalistic acts. The third set of puzzles concerns the relation of epistemic autonomy to epistemic value and to intellectual virtues and vices. Is there epistemic value to being epistemically autonomous? How does epistemic autonomy relate to different intellectual virtues and vices? Finally, the fourth set of puzzles concerns the role of epistemic autonomy within a social epistemology. How does epistemic autonomy square with a reliance on expertise? Does thinking about epistemic autonomy add to the debates about the epistemic significance of disagreement or epistemic injustice? (shrink)

According to a number of influential views in penal theory, 1 one of the primary goals of the criminal justice system is to rehabilitate offenders. Rehabilitativemeasures are commonly included as a part of a criminal sentence. For example, in some jurisdictions judges may order violent offenders to attend anger management classes or to undergo cognitive behavioural therapy as a part of their sentences. In a limited number of cases, neurointerventions — interventions that exert a direct biological effect on the brain (...) — have been used as aids to rehabilitation, typically being imposed as part of criminal sentences, separate treatment orders, or conditions of parole. Examples of such interventions include medications intended to attenuate addictive desires in substance-abusing offenders and agents intended to suppress libido in sex offenders.This chapter reviews some of the ethical issues raised by the use of neurointerventions as aids to rehabilitation. (shrink)

The revised edition of this highly successful text provides a clear and accessible introduction to some of the most important questions of political philosophy. Organized around major issues, Wolff provides the structure that beginners need, while also introducing some distinctive ideas of his own.

In this chapter I develop and motivate and account of epistemic autonomy as an intellectual character virtue. In Section one, I clarify the concept of an intellectual virtue and character intellectual virtues in particular. In Section two, I clear away some misconceptions about epistemic autonomy to better focus on our target. In Section three, I examine and evaluate several extant accounts of the virtue of epistemic autonomy, noting problems with each. In Section four, I provide my positive account of the (...) virtue of epistemic autonomy and explain how it meets the desiderata for such an account while avoiding the problems with extant accounts. Finally, in Section five, I fill the account out by digging into the factors that guide epistemically autonomous agents in having an appropriate reliance on their own thinking. (shrink)

This article argues that two words in line 8.612 of the Aeneid, promissa and perfecta, have been transposed since the poem's composition, and that the restoration of their correct order yields a preferable sense. This corruption would have happened at an early stage in the poem's transmission, but there is some reason to believe that Servius’ comment on the verse reflects its original state.