This essay examines several competing accounts of what makes life go well for non-human animals, including prominent subjective and objective theories of animal well-being.

This essay gives an account of thee exchanges between Jacques Derrida and Hans-Georg Gadamer at the Goethe Institute in Paris in April 1981. Many commentators perceive of this encounter as an "improbable debate," citing Derrida's marginalization, or, in deconstructive terms, deconcentration of Gadamer's opening text as the main reason for its "improbabliity." An analysis of the questions that Derrida poses concerning "communication" as an axiom from which we derive decidable truth brings us to the central feature of this discussion: How (...) does one engage the "other" in conversation in the light of the problems reptaining to meaningful communication? The essay suggests that the first round of exchanges between Derrida and Gadamer is a good example of the violence that is prevalent (and perhaps inevitable) in all academic discussions. Finally a more "ethical" approach to discussion, based on Derrida's postulation of a friendship," is suggested. It challenges the hermeneutic search for consensus, whereby the "other" is contracted into fraternity, but cannot eliminate elements of violence completely. (shrink)

When Gilles Deleuze, in his book on Michel Foucault, asks, ‘who would think of looking for life among the archives?’, he uncovers something particular to Foucault's philosophy, but also to his own: a commitment to the question of what it means to think, and think politically. Although Foucault and Deleuze, who first met in 1952, immediately felt fondness for each other, a growing animosity had settled into the friendship by the end of the 1970s – a rift deepened by theoretical (...) differences. Notwithstanding these difficulties, Foucault and Deleuze shared a love for Nietzsche, as well as a curious fascination with Kant. Kant's influence, which was met with more opposition, is precisely the tension I tease out in this article, showing how Foucault critiques Kant's a priori through his own concept of the historical a priori, along with regularity and resistance, while Deleuze and Guattari, if more obliquely, critique Kant's a priori by further developing Foucault's notion of the historical a priori through their own method of pragmatics, particularly in three chapters of A Thousand Plateaus, namely ‘The Geology of Morals’, ‘Postulates of Linguistics’ and ‘On Several Regimes of Signs’. What I am interested in, then, is Deleuze and Guattari's treatment of redundancy, a concept mentioned seventy times in A Thousand Plateaus. Although not one of their main or most developed concepts, redundancy is a thread that can be traced back to Deleuze's first book, Empiricism and Subjectivity. Moreover, their more developed concepts, for example the diagram, the abstract machine, becoming, micro-politics and the ritornello, as well as their political philosophy, are grounded in their understanding of redundancy, which moves their philosophy beyond mapping out the conditions of possibility and demonstrating that the historical a priori emerges as a contingent function of its own expression to the genesis of thought. (shrink)

Kojève’s lectures on Phenomenology of Spirit generated two ideas – otherness is something threatening that must be overcome and one’s relationships with others are inexorably violent – that fundamentally shaped the way many exponents of early French phenomenology regarded intersubjectivity. This essay shows how Beauvoir’s appropriation of Hegel in The Ethics of Ambiguity offers a perspective on intersubjectivity that defies the other-conquering Cartesian hero implied by Kojève and celebrated in Sartre’s Being and Nothingness. Beauvoir appreciates the degree to which Hegel (...) makes subjectivity indebted to otherness. Like Hegel, she defines oppression as the failure to recognise the otherness of the other. Beauvoir shares Hegel’s optimism that individuals can sublate their naïve solipsism. She associates reciprocal recognition between subjects with ethical freedom, which she distinguishes from Sartre’s concept of freedom. From the analysis of ethical freedom it is concluded that both conflict and friendship are side-effects of the essential bond between subjects and their mutual need for one another. The Hegel-inspired hopefulness at the core of The Ethics of Ambiguity is further demonstrated by Beauvoir’s rejection of the absurd in favour of ambiguity, her positive rendering of failure, her appeal to outrageousness, and focus on the joy of existence. (shrink)

In his 2018 AJP paper, Shlomo Cohen hints that deception could be a distinct subset of manipulation. We pursue this thought further, but by arguing that Cohen’s accounts of deception and manipulation are incorrect. Deception under uncertainty need not involve adding false premises to the victim’s reasoning but it must involve manipulating her response, and cases of manipulation that do not interfere with the victim’s reasoning, but rather utilize it, also exist. Therefore, deception under uncertainty must be constituted by covert (...) manipulation. (shrink)

This intra-view explores a number of productive junctions between contemporary Deleuzoguattarian and new materialist praxes via a series of questions and provocations. Productive tensions are explored via questions of epistemological, ontological, ethical, and political intra-sections as well as notions of difference, transversal contamination, ecosophical practices, diffraction, and, lastly, schizoanalysis. Various irruptions around biophilosophy, transduction, becomology, cartography, power relations, hyperobjects as events, individuation, as well as dyschronia and disorientation, take the discussion further into the wild pedagogical spaces that both praxes have (...) in common. -/- . (shrink)

A growing body of empirical research suggests many animal species are capable of social learning and even have cultural behavioral traditions. Social learning has implications for community ecology; changes in behavior can lead to changes in inter- and intra-specific interactions. The paper explores possible implications of social learning for ecological community dynamics. Four arguments are made: social learning can result in locally-specific ecological relationships; socially-mediated, locally-specific ecological relationships can have localized indirect interspecific population effects; the involvement of multiple co-existing species (...) in socially learned, locally-specific behavior has the potential to create community-wide effects, including varying levels of stability and instability; and social learning can create new intra- and inter-specific selection pressures on local taxa, potentially resulting in rapid evolution. Implications of all four arguments are discussed in relation to community ecology research and modeling. (shrink)

In this article we expand upon the conceptual framework of Félix Guattari’s 1989 essay, The Three Ecologies. Here Guattari examines changes in subjectivity that have come about due to scientific and technological advances which, as he sees it, brought about an “ecological disequilibrium” ([1989]2000, 27) and deteriorated individual and collective modes of being. In response to this Guattari proposes a kind of holistic therapy or ‘ecosophy’ between three ecological registers: “the environment, social relations and human subjectivity” (ibid., 28). Guattari cautions (...) that we not only take note of these macro determinations, but also heed the libidinal impulses of desire – what captures it, what directs it, and what shuts it down. Since the publication of The Three Ecologies, the rise of digital technologies has dramatically influenced the ways in which people think, live and communicate. Technological infrastructures, for instance, are used to spread disinformation at a vast speed and scale, and because social networks are often homophile many people infrequently encounter critical disagreement and debate. The increase in media and digital communications usage has also led to new forms of social inclusion and exclusion, the most exacerbated form of which is probably the phenomenon known as hikikomori – acute, prolonged social withdrawal. Taking hikikomori as our focus, we describe what we see as a general set of symptoms of society and trace its myriad intersections with an ever-increasing algorithmic ubiquity, which we posit as the new form of hyper-modulation following from Foucault’s disciplinary societies and Deleuze’s control societies. (shrink)

Cet article s’intéresse à la masculinité dans deux romans historiques du vingtième siècle, dont l’intrigue se déroule au dix-huitième : Ingenious Pain d’Andrew Miller (1997) et The Giant, O’Brien d’Hilary Mantel (1998). Les deux romanciers inventent des protagonistes qui incarnent des attributs considérés comme typiquement masculins, tels que la résistance à la douleur, la force physique et la masse corporelle, ces attributs étant par ailleurs liés à la possibilité de gagner de l’argent. Dans ces textes, cependant, l’exagération des caractéristiques masculines (...) stéréotypées complexifie le portrait des deux personnages, les faisant paraître à différents moments comme des non-hommes ou des hommes inférieurs : ils ressemblent tantôt à des monstres, tantôt à des victimes pitoyablement faibles – comparés à des enfants, voire à des femmes. Paradoxalement, les qualités associées à la virilité dans ces récits dépouillent les hommes de leur autonomie plutôt que de la leur conférer, de sorte qu’ils se trouvent dépossédés de l’idéal masculin et deviennent la propriété d’autres hommes. (shrink)

I ARGUE THAT SPINOZA’S DEVELOPMENT OF THE CONCEPT OF ’CONATION’ IS A CONSISTENT ANALYSIS BASED UPON HIS CLAIM THAT TELEOLOGICAL OR FUNCTIONAL EXPLANATION IS EITHER REDUCIBLE TO CAUSAL EXPLANATION (IN TERMS OF DRIVES) OR IS NOT GENUINELY EXPLANATORY. SEVERAL IMPORTANT CONSEQUENCES OF THIS FOR SPINOZA’S ACCOUNT OF HUMAN APPETITION ARE PURSUED, AND SOME CONSEQUENCES FOR HIS POLITICAL THEORY ARE MENTIONED IN CLOSING.

A Guide to Plato's Republic provides an integral interpretation of the Republic that is accessible even to readers approaching Plato's masterwork for the first time. Written at a level understandable to undergraduates, it is ideal for students and other readers who have little or no background in philosophy or political theory. Rice anticipates their inevitable reactions to the Republic and treats them seriously, opening the way to an appreciation of the complexities of the text without oversimplifying it. While many (...) books on the Republic never stray far from explicating Plato's text, this work contrasts Plato's responses to perennial issues in philosophy and political theory with those of several key subsequent thinkers. It uses engaging examples to show the continuing relevance of Plato's arguments and introduces some basic vocabulary of philosophy and political theory, going beyond terse dictionary definitions by illustrating what technical terms mean in the context of Plato's work. The author's interpretative posture is appreciative but respectfully critical of Plato's vision. Stressing the relationship between Plato's politics and metaphysics, Rice argues that Plato's reluctance to accept the reality and consequences of finitude accounts for much of what many readers find objectionable in his politics. Lively, relatively brief, and designed to provoke discussion in the classroom, A Guide to Plato's Republic is ideal for political theory and introduction to philosophy courses as well as other courses that assign the Republic as a primary text. (shrink)

This article discusses minimal model explanations, which we argue are distinct from various causal, mechanical, difference-making, and so on, strategies prominent in the philosophical literature. We contend that what accounts for the explanatory power of these models is not that they have certain features in common with real systems. Rather, the models are explanatory because of a story about why a class of systems will all display the same large-scale behavior because the details that distinguish them are irrelevant. This story (...) explains patterns across extremely diverse systems and shows how minimal models can be used to understand real systems. (shrink)

New materialist frameworks have increasingly repudiated dualistic thinking and challenged representationalist views, which hold that discursive practices mediate our access to the material world. As it has become clear that the material cannot be considered inert, important questions concerning agency, politics and subjectivity have been raised. But while the significance of corporeality has been emphasised, Elizabeth Grosz, in an interview on her most recent book, The Incorporeal, notes that: ‘If materialism cannot account for the immaterial events we experience and articulate, (...) then it has a clear limit that it needs to address.’ An important question this raises in terms of the mutual conditionings of love and one I will address is: How can we account for the immaterial space and time tracings of love without negating the material in the process? To answer this, I turn to Deleuze's The Logic of Sense. (shrink)

The number of studies examining visual perspective during retrieval has recently grown. However, the way in which perspective has been conceptualized differs across studies. Some studies have suggested perspective is experienced as either a first-person or a third-person perspective, whereas others have suggested both perspectives can be experienced during a single retrieval attempt. This aspect of perspective was examined across three studies, which used different measurement techniques commonly used in studies of perspective. Results suggest that individuals can experience more than (...) one perspective when recalling events. Furthermore, the experience of the two perspectives correlated differentially with ratings of vividness, suggesting that the two perspectives should not be considered in opposition of one another. We also found evidence of a gender effect in the experience of perspective, with females experiencing third-person perspectives more often than males. Future studies should allow for the experience of more than one perspective during retrieval. (shrink)

For Ivor Grattan-Guinness on the occasion of his retirement. The work of Augustus De Morgan on symbolic logic in the mid-nineteenth century is familiar to historians of logic and mathematics alike. What is less well known is his work on probability and, more specifically, the use of probabilistic ideas and methods in his logic. The majority of De Morgan's work on probability was undertaken around 1837???1838, with his earliest publications on logic appearing from 1839, a period which culminated with the (...) publication of his Formal Logic in 1847. This article examines the overlap between his work on probability theory and logic during the earliest period of his interest in both. (shrink)

Magnetic resonance imaging (MRI) can provide a number of measurements relevant to sport-related concussion (SRC) symptoms; however, most studies to date have used a single MRI modality and whole-brain exploratory analyses in attempts to localize concussion injury. This has resulted in highly variable findings across studies due to wide ranging symptomology, severity and nature of injury within studies. A multimodal MRI, symptom-guided region-of-interest (ROI) approach is likely to yield more consistent results. The functions of the cerebellum and basal ganglia transcend (...) many common concussion symptoms, and thus these regions, plus the white matter tracts that connect or project from them, constitute plausible ROIs for MRI analysis. We performed diffusion tensor imaging (DTI), resting-state functional MRI, quantitative susceptibility mapping (QSM), and cerebral blood flow (CBF) imaging using arterial spin labeling (ASL), in youth aged 12-18 years following SRC, with a focus on the cerebellum, basal ganglia and white matter tracts. Compared to controls similar in age, sex and sport (N = 20), recent SRC youth (N = 29; MRI at 8 ± 3 days post injury) exhibited increased susceptibility in the cerebellum (p = 0.032), decreased functional connectivity between the caudate and each of the pallidum (p = 0.035) and thalamus (p = 0.021), and decreased diffusivity in the mid-posterior corpus callosum (p < 0.038); no changes were observed in recovered asymptomatic youth (N = 16; 41 ± 16 days post injury). For recent symptomatic-only SRC youth (N = 24), symptom severity was associated with increased susceptibility in the superior cerebellar peduncles (p = 0.011) and reduced activity in the cerebellum (p = 0.013). Fewer days between injury and MRI were associated with reduced cerebellar-parietal functional connectivity (p < 0.014), reduced activity of the pallidum (p = 0.002), increased CBF in the caudate (p = 0.005), and reduced diffusivity in the central corpus callosum (p < 0.05). Youth SRC is associated with acute cerebellar inflammation accompanied by reduced cerebellar activity and cerebellar-parietal connectivity, as well as structural changes of the middle regions of the corpus callosum accompanied by functional changes of the caudate, all of which resolve with recovery. Early MRI post-injury is important to establish objective MRI-based indicators for concussion diagnosis, recovery assessment and prediction of outcome. (shrink)

In Coldness and Cruelty, Deleuze remarks that masochism may be reflected on from three perspectives: as a pleasure–pain alliance, as an enactment of humiliation and slavery, and as a consideration of the enslavement of contractual relations. Later Deleuze and Guattari consider masochism in terms of an ontology of desire – in terms of virtuality rather than extensity. I argue that while the actualisation of pain might be considered secondary, and is oftentimes portrayed as incidental in popular depictions, it also constitutes (...) the exhaustive/exhausted and refrain functions of masochism so that the masochist might be thought of as the figure of exhaustion. (shrink)

In this follow-up to the book 'God's Not Dead' (that inspired the movie), 'Man, Myth, Messiah' looks at the evidence for the historical Jesus and exposes the notions of skeptics that Jesus was a contrived figure of ancient mythology. It also looks at the reliability of the Gospel records as well as the evidence for the resurrection that validates His identity as the promised Messiah."--Amazon.com.

In 1975 the exhibition New Topographics: Photographs of a Man-Altered Landscape crystallized a new view of the American West: the sublime “American” vistas of Ansel Adams were replaced and subverted by images of a landscape inundated with banal symbols of humanity. Organized by William Jenkins for the George Eastman House in Rochester, New York, New Topographics showcased such photographers as Robert Adams, Lewis Baltz, Joe Deal, Frank Gohlke. Their pictures, illustrating the vernacular, human-made world of contemporary America, punctured the myth (...) of the pristine, wild American landscape—and definitively changed the course of landscape photography. Reframing the New Topographics offers the first substantive analysis of this shift and the continuing influence of an exhibition that not only reshaped the look and subject matter of landscape photography, but also foreshadowed environmentalism’s expansion beyond the mere preservation of wilderness. The essays in this anthology will add an important new dimension to the studies of art history and visual culture. (shrink)

Explores "the questions surrounding faith, skepticism, and the meaning of life... as well as... evidence for the existence of God and the truths of Christianity"--Dust jacket flap.

Highly idealized models, such as the Hawk-Dove game, are pervasive in biological theorizing. We argue that the process and motivation that leads to the introduction of various idealizations into these models is not adequately captured by Michael Weisberg’s taxonomy of three kinds of idealization. Consequently, a fourth kind of idealization is required, which we call hypothetical pattern idealization. This kind of idealization is used to construct models that aim to be explanatory but do not aim to be explanations.

This article examines the ethical basis for government involvement in health care. It first provides the case for individual autonomy, focusing on the justifications–particularly ethical ones–for allowing individuals to make their own choices in health care, and to control more of their own resources in doing so. Next, it provides the opposite case–for abridging individual autonomy, and in particular, for redistributing resources from those who are well off to those who are not. The overriding reason for favouring the latter case, (...) which trumps the notion of individual autonomy, is to ensure that individuals who are at a disadvantage have an equal probability of attaining good health. (shrink)

Shapiro and Sober claim that Walsh, Ariew, Lewens, and Matthen give a mistaken, a priori defense of natural selection and drift as epiphenomenal. Contrary to Shapiro and Sober’s claims, we first argue that WALM’s explanatory doctrine does not require a defense of epiphenomenalism. We then defend WALM’s explanatory doctrine by arguing that the explanations provided by the modern genetical theory of natural selection are ‘autonomous-statistical explanations’ analogous to Galton’s explanation of reversion to mediocrity and an explanation of the diffusion ofgases. (...) We then argue that whereas Sober’s theory of forces is an adequate description of Darwin’s theory, WALM’s explanatory doctrine is required to understand how themodern genetical theory of natural selection explains large-scale statistical regularities. 1 Introduction2 Shapiro and Sober’s ‘Epiphenomenalism Do’s and Don’ts’3 WALM’s Explanatory Doctrine4 Galton’s Autonomous-Statistical Explanation5 A Second Example: The Statistical Explanation of the Diffusion of Gases6 Distinguishing Two Theories of Evolution by Natural Selection7 A Possible Objection: Are Statistical Laws Sufficient for Explanation?8 Conclusion. (shrink)

Important variations in access to health care and health outcomes are associated with geography, giving rise to profound ethical concerns. This paper discusses the consequences of such concerns for the allocation of health care finance to geographical regions. Specifically, it examines the ethical drivers underlying capitation systems, which have become the principal method of allocating health care finance to regions in most countries. Although most capitation systems are based on empirical models of health care expenditure, there is much debate about (...) which needs factors to include in such models. This concern with legitimate and illegitimate drivers of health care expenditure reflects the ethical concerns underlying the geographical distribution of health care finance. (shrink)

Highly idealized models, such as the Hawk-Dove game, are pervasive in biological theorizing. We argue that the process and motivation that leads to the introduction of various idealizations into these models is not adequately captured by Michael Weisberg’s taxonomy of three kinds of idealization. Consequently, a fourth kind of idealization is required, which we call hypothetical pattern idealization. This kind of idealization is used to construct models that aim to be explanatory but do not aim to be explanations.

ABSTRACTRemembering to perform a behaviour in the future, prospective memory, is essential to ensuring that people fulfil their intentions. Prospective memory involves committing to memory a cue to action, and later recognising and acting upon the cue in the environment. Prospective memory performance is believed to be influenced by the emotionality of the cues, however the literature is fragmented and inconsistent. We conducted a systematic search to synthesise research on the influence of emotion on prospective memory. Sixty-seven effect sizes were (...) extracted from 17 articles and hypothesised effects tested using three meta-analyses. Overall, prospective memory was enhanced when positively-valenced rather than neutral cues were presented. In contrast, negatively-valenced cues did not enhance prospective memory overall, but this effect was moderated by the timing of the emotional manipulation. Prospective memory performance was improved when negatively-valenced... (shrink)

Electroencephalographic monitoring provides critical diagnostic and management information about patients with epilepsy and seizure mimics. Admission to an epilepsy monitoring unit (EMU) is the gold standard for such monitoring in major medical facilities worldwide. In many countries, access can be challenged by limited resources compared to need. Today, triaging admission to such units is generally approached by unwritten protocols that vary by institution. In the absence of explicit guidance, decisions can be ethically taxing and are easy to challenge. In an (...) effort to address this gap, we propose a two-component approach to EMU triage that takes into account the unique landscape of epilepsy monitoring informed by triage literature from other areas of medicine. Through the strategic component, we focus on the EMU wait list management infrastructure at the institutional level. Through the principled component, we apply a combination of the ethical principles of prioritarianism, utilitarianism and justice to triage; and we use individual case examples to illustrate how they apply. The effective implementation of this approach to specific epilepsy centres will need to be customised to the nuances of different settings, including diverse practice patterns, patient populations and constraints on resource distribution, but the conceptual consolidation of its components can alleviate some of the pressures imposed by the complex decisions involved in EMU triage. (shrink)

The ability to reason and problem‐solve in novel situations, as measured by the Raven's Advanced Progressive Matrices (RAPM), is highly predictive of both cognitive task performance and real‐world outcomes. Here we provide evidence that RAPM performance depends on the ability to reallocate attention in response to self‐generated feedback about progress. We propose that such an ability is underpinned by the basal ganglia nuclei, which are critically tied to both reward processing and cognitive control. This hypothesis was implemented in a neurocomputational (...) model of the RAPM task, which was used to derive novel predictions at the behavioral and neural levels. These predictions were then verified in one neuroimaging and two behavioral experiments. Furthermore, an effective connectivity analysis of the neuroimaging data confirmed a role for the basal ganglia in modulating attention. Taken together, these results suggest that individual differences in a neural circuit related to reward processing underpin human fluid reasoning abilities. (shrink)

The South African government’s COVID-19 pandemic risk mitigation strategies significantly limited social contact, which necessitated a novel approach to existing face-to-face career guidance practices. The Grade 9 Career Guidance Project, originally developed as a group-based career development intervention, required radical adaptation into a self-directed, manualized format to offer career guidance to Grade 9 learners from low-income communities amid a global pandemic. The adaptation and continuation of the project was deemed essential as secondary school learners in low-income communities have limited career (...) guidance support. Furthermore, a close collaboration with the teachers at eight resource-constrained South African secondary schools was vital for successful implementation. To assess the success of the adaptation to a self-directed format, a mixed-methods design was employed, and Life Orientation teachers’ evaluative feedback was solicited. Favorable quantitative results were obtained; majority of teachers agreed that learners enjoyed the booklet and that it was deemed an adequate substitute to the previous contact-based format of the Career Guidance Project. This was also confirmed by the qualitative findings revealing teachers’ satisfaction with the booklet’s content, specifically that the booklet is complementary to the Life Orientation curriculum. Qualitative findings identified specific contextual barriers that contributed to some learners struggling to use the booklet optimally. The results suggest that it is feasible and acceptable to implement a self-directed career guidance intervention among secondary school learners amid a global pandemic. Teachers recommended ways to integrate the booklet, resources, and contact sessions as a preferred way forward. These findings have important implications for similar resource-constrained settings that may not have readily access to in-person career guidance and counseling human development. (shrink)

A Guide to Plato's Republic provides an integral interpretation of the Republic which is accessible even to readers approaching Plato's masterwork for the first time. Written at a level understandable to undergraduates, it is ideal for students and other readers who have little or no background in philosophy or political theory. Rice anticipates their inevitable reactions to the Republic and treats them seriously, opening the way to an appreciation of the complexities of the text without oversimplifying it. While many (...) books on the Republic never stray far from explicating Plato's text, this work contrasts Plato's responses to perennial issues in philosophy and political theory with those of several key subsequent thinkers. It uses engaging examples to show the continuing relevance of Plato's arguments and introduces some basic vocabulary of philosophy and political theory, going beyond terse dictionary definitions by illustrating what technical terms mean in the context of Plato's work. The author's interpretative posture is appreciative but respectfully critical of Plato's vision. Stressing the relationship between Plato's politics and metaphysics, Rice argues that Plato's reluctance to accept the reality and consequences of finitude accounts for much of what many readers find objectionable in his politics. Lively, relatively brief, and designed to provoke discussion in the classroom, A Guide to Plato's Republic is ideal for political theory and introduction to philosophy courses as well as other courses that assign the Republic as a primary text. (shrink)

(2011). Korn and Freidlin's Misunderstanding of the Null Hypothesis Significance Testing Procedure. The American Journal of Bioethics: Vol. 11, No. 3, pp. 15-16.

Within the modeling literature, there is often an implicit assumption about the relationship between a given model and a scientific explanation. The goal of this article is to provide a unified framework with which to analyze the myriad relationships between a model and an explanation. Our framework distinguishes two fundamental kinds of relationships. The first is metaphysical, where the model is identified as an explanation or as a partial explanation. The second is epistemological, where the model produces understanding that is (...) related to the explanation of interest. Our analysis reveals that the epistemological relationships are not always dependent on the metaphysical relationships, contrary to what has been assumed by many philosophers of science. Moreover, we identify several importantly different ways that scientific models instantiate these relationships. We argue that our framework provides novel insights concerning the nature of models, explanation, idealization, and understanding. (shrink)