Approximately three decades ago the question was first answered whether parasitoids are able to assess the number or origin of eggs in a host for a solitary parasitoid, Leptopilina heterotoma, by fitting theoretically derived distributions to empirical ones. We extend the set of different theoretically postulated distributions of eggs among hosts by combining searching modes and abilities in assessing host quality. In the models, parasitoids search either randomly (Poisson) (1) or by vibrotaxis (Negative Binomial) (2). Parasitoids are: (a) assumed to (...) treat all hosts equally, (b) able to distinguish them in unparasitised and parasitised hosts only, (c) able to distinguish them by the number of eggs they contained, or (d) able to recognise their own eggs. Mathematically tractable combinations of searching mode (1 and 2) and abilities (a,b,c,d) result in seven different models (M1a, M1b, M1c, M1d, M2a, M2b and M2c). These models have been simulated for a varying number of searching parasitoids and various mean numbers of eggs per host. Each resulting distribution is fitted to all theoretical models. The model with the minimum Akaike's information criterion (AIC) is chosen as the best fitting for each simulated distribution. We thus investigate the power of the AIC and for each distribution with a specified mean number of eggs per host we derive a frequency distribution for classification.Firstly, we discuss the simulations of models including random search (M1a, M1b, M1c and M1d). For M1a, M1c and M1d the simulated distributions are correctly classified in at least 70% of all cases. However, in a few cases model M1b is only properly classified for intermediate mean values of eggs per host. The models including vibrotaxis as searching behaviour (M2a, M2b and M2c) cannot be distinguished from those with random search if the mean number of eggs per host is low. Among the models incorporating vibrotaxis the three abilities are detected analogously as in models with random search. (shrink)

Este artigo prolonga a análise do argumento apresentado por Descartes em favor da primeira certeza no início da Segunda Meditação, iniciada em um artigo anterior. É examinada a passagem subsequente ao referido argumento com vistas a estabelecer que sua compreensão aponta para um debate velado entre Descartes e seus leitores versa- dos na doutrina escolástica, mais particularmente nas concepções da definição como estruturada pela composição do gênero e da diferença e de específica e de conceito universal abstrato. Procuro mostrar que (...) as razões que Des- cartes dispõe para recusar essas concepções podem ser extraídas de certa interpretação do argumento em favor da certeza da proposição eu existo e que essa recusa é imprescindível para a compreensão adequada do penso, logo existo e, portanto, de seu argumento em favor do dualismo. -/- RESUMÉE: Cet article prolonge l´analyse, publiée dans un article précédent, sur l'argumentation cartésienne qui le conduit à la première certitude au début de la Seconde Méditation. Je propose une interprétation du passage, qui vient juste après cet argument, où Descartes décline la réponse « animal rational » à la question sur sa nature. Ce passage, comme j'essaierai de le montrer, cache un dialogue masqué entre l'auteur et ses lecteurs ayant une formation scolastique. Plus particulièrement, il s'agit de montrer que la critique de Descartes vise de façon plus générale la conception de la définition par genre et différence spécifique, ainsi que la notion de concept en tant qu’universal abstrait. Les raisons qui peuvent justifier cette critique et la rendre plus qu’un simple préjugé de la part de Descartes sont ici puisées dans l'interprétation de l'argumentation cartésienne en faveur de la première certitude, proposée auparavant. On verra alors que la compréhension correcte de ce qui est en question dans ce texte révèle une condition capitale et pour l' acceptation du je pense, donc j'existe et donc pour son raisonnement en faveur du dualisme. (shrink)

Ce texte propose une justification de la critique que Spinoza adresse à Descartes, par l’intermédiaire de Louis Meyer, dans la Préface des Principes de la Philosophie de Descartes ; plus particulièrement, il s’agit de reconstruire ses raisons pour affirmer qu’il n’a pas été prouvé, dans la Seconde Méditation, que la chose qui est désignée par le terme ‘je’ puisse être une substance. L’argument qui doit soutenir cette affirma- tion peut être schématisé de la façon suivante : Descartes ne peut introduire (...) un indice temporel dans la certitude de la proposition Je suis, j’existe que s’il accepte que la compréhension de cette proposition enveloppe la possibilité de l’existence d’autres choses pensantes finies, ce qui contredit l’unes des conditions de la conception d’une chose comme substance, telles que lui-même les a définies dans l’article 60 de la première partie des Principes de la Philosophie. (shrink)

Theory and history combine in this book to form a coherent narrative of the debates on language and languages in the Western world, from ancient classic philosophy to the present, with a final glance at on-going discussions on language as a cognitive tool, on its bodily roots and philogenetic role.An introductory chapter reviews the epistemological areas that converge into, or contribute to, language philosophy, and discusses their methods, relations, and goals. In this context, the status of language philosophy is discussed (...) in its relation to the sciences and the arts of language. Each chapter is followed by a list of suggested readings that refer the reader to the final bibliography."About the author" Lia Formigari, Professor Emeritus at University of Rome, La Sapienza. Her publications include: "Language and Experience in XVIIth-century British Philosophy." Amsterdam & Philadelphia: J. Benjamins, 1988; "Signs, Science and Politics. Philosophies of Language in Europe 1700 1830." Amsterdam & Philadelphia: J. Benjamins, 1993; "La semiotique empiriste face au kantisme." Liege: Mardaga, 1994. (shrink)

A tono con esta afortunada relevancia de las mujeres (hay un gran estallido en todo el mundo del arte y la literatura de magníficas calidades, hechos por mujeres), vienen aquí cinco artistas argentinas: Carla Rey, Silvana Blasbalg, Romina Linder, Gabriela Juárez y Ana Lía Werthein, de entre muchas otras artistas plásticas que pertenecen al colectivo Instantes Gráficos, presidido y fundado en la ciudadbonaerense desde 1999 por la también artista Carla Rey.

For more than a century, Harlem has been the epicenter of black America, the celebrated heart of African American life and culture—but it has also been a byword for the problems that have long plagued inner-city neighborhoods: poverty, crime, violence, disinvestment, and decay. Photographer Camilo José Vergara has been chronicling the neighborhood for forty-three years, and Harlem: The Unmaking of a Ghetto is an unprecedented record of urban change. Vergara began his documentation of Harlem in the tradition of such masters (...) as Helen Levitt and Aaron Siskind, and he later turned his focus on the neighborhood’s urban fabric, both the buildings that compose it and the life and culture embedded in them. By repeatedly returning to the same locations over the course of decades, Vergara is able to show us a community that is constantly changing—some areas declining, as longtime businesses give way to empty storefronts, graffiti, and garbage, while other areas gentrify, with corporate chain stores coming in to compete with the mom-and-pops. He also captures the ever-present street life of this densely populated neighborhood, from stoop gatherings to graffiti murals memorializing dead rappers to impersonators honoring Michael Jackson in front of the Apollo, as well as the growth of tourism and racial integration. Woven throughout the images is Vergara’s own account of his project and his experience of living and working in Harlem. Taken together, his unforgettable words and images tell the story of how Harlem and its residents navigated the segregation, dereliction and slow recovery of the closing years of the twentieth century and the boom and racial integration of the twenty-first century. A deeply personal investigation, Harlem will take its place with the best portrayals of urban life. (shrink)

Of all the developments in twentieth century physics, none has given rise to more heated debates than the changes in our understanding of science precipitated by the quantum revolution''. In this revolution, Niels Bohr's dramatically non-classical theory of the atom proved to be the springboard from which the new atomic physics drew it's momentum. Furthermore, Bohr's contribution was crucial not only because his interpretation of quantum mechanics became the most widely accepted view but also because in his role as educator (...) and spokesman for atomic physics Bohr was very much the patron spirit of the entire quantum revolution. The conceptual framework which he proposed to provide a new viewpoint for understanding the quantum theoretical description of atomic systems became for most of this century the dominant outlook of countless productive experimental and theoretical physicists. He called this new framework complementarity''. (shrink)

Trope theory is a leading metaphysical theory in analytic ontology. One of its classic statements is found in the work of Donald C. Williams who argued that tropes qua abstract particulars are the very alphabet of being. The concept of an abstract particular has been repeatedly attacked in the literature. Opponents and proponents of trope theory alike have levelled their criticisms at the abstractness of tropes and the associated act of abstraction. In this paper I defend the concept of a (...) trope qua abstract particular by rejecting arguments that purport to show that tropes should not be understood as abstract and by arguing that the abstractness of tropes plays an indispensable role in one of our more promising trope-theoretic analyses of universals and of concrete objects. (shrink)

In Working Virtue: Virtue Ethics and Contemporary Moral Problems, leading figures in the fields of virtue ethics and ethics come together to present the first ...

v. 1. Nicomachean ethics. Politics. The Athenian Constitution. Rhetoric. On Poetics.--v. 2. Logic.--v. 3. Physics. Metaphysics. On the soul. Short physical treaties.--v. 4. On the heavens. On generation and corruption. Meteorology. Biological treatises.

17 essays discussing the role of language in the history of western thought. Since Adam before the Fall named the animals by true insight into their essences, language has never ceased to be the pivot of efforts to understand human nature and our capacity to feel at home in the twin worlds of nature and society. This volume brings together seventeen essays that have appeared in the Journal of the History of Ideasover the last thirty years. Their common theme is (...) the role of language in aspects of the history of western thought from the Renaissance to the nineteenth century. The essays cover questions in epistemology, religion, anthropology, lexicography, evolution, the theory of signs, and the origin of language. Contributors: FRANK L. BORCHARDT, MARGRETA DE GRAZIA, SIDONIE CLAUSS, JAN MIEL, THOMAS C.SINGER, VICTOR ANTHONY RUDOWSKI, JULES PAUL SEIGEL, JAMES McLAVERTY, J.R. KNOWLSON, STEPHEN K. LAND, LIA FORMIGARI, H.J. JACKSON, W. JAY REEDY, V.P. BYNACK, CYMBRE QUINCYRAUB, MICHAEL SPRINKER, S. MORRIS ENGEL. (shrink)

The concept of instantiation is realized differently across a variety of metaphysical theories. A certain realization of the concept in a given theory depends on what roles are specified and associated with the concept and its corresponding term as well as what entities are suited to fill those roles. In this paper, the classic realization of the concept of instantiation in a one-category ontology of abstract particulars or tropes is articulated in a novel way and defended against unaddressed objections.

Tens of thousands of students have learned to be more discerning at constructing and evaluating arguments with the help of Patrick J. Hurley. Hurley’s lucid, friendly, yet thorough presentation has made A CONCISE INTRODUCTION TO LOGIC the most widely used logic text in North America. In addition, the book’s accompanying technological resources, such as CengageNOW and Learning Logic, include interactive exercises as well as video and audio clips to reinforce what you read in the book and hear in class. In (...) short, you’ll have all the assistance you need to become a more logical thinker and communicator. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. (shrink)

Fifteen essays addressing conceptions of individualism and holism as they emerged in Chinese literature and philosophy from the time of Confucius and Chuang-tzu to the present.

Human languages vary in many ways but also show striking cross-linguistic universals. Why do these universals exist? Recent theoretical results demonstrate that Bayesian learners transmitting language to each other through iterated learning will converge on a distribution of languages that depends only on their prior biases about language and the quantity of data transmitted at each point; the structure of the world being communicated about plays no role (Griffiths & Kalish, , ). We revisit these findings and show that when (...) certain assumptions about the relationship between language and the world are abandoned, learners will converge to languages that depend on the structure of the world as well as their prior biases. These theoretical results are supported with a series of experiments showing that when human learners acquire language through iterated learning, the ultimate structure of those languages is shaped by the structure of the meanings to be communicated. (shrink)

For over 40 years, J. I. Packer's classic has been an important tool to help Christians around the world discover the wonder, the glory and the joy of knowing God. Explaining both who God is and how we can relate to him, this thought-provoking work seeks to transform and enrich the Christian understanding of God.

In management research, theory testing confronts a paradox described by Meehl in which designing studies with greater methodological rigor puts theories at less risk of falsification. This paradox exists because most management theories make predictions that are merely directional, such as stating that two variables will be positively or negatively related. As methodological rigor increases, the probability that an estimated effect will differ from zero likewise increases, and the likelihood of finding support for a directional prediction boils down to a (...) coin toss. This paradox can be resolved by developing theories with greater precision, such that their propositions predict something more meaningful than deviations from zero. This article evaluates the precision of theories in management research, offers guidelines for making theories more precise, and discusses ways to overcome barriers to the pursuit of theoretical precision. (shrink)

Rooted in the field of cathedral studies, this paper draws into dialogue three bodies of knowledge: Edward Bailey’s notion of implicit religion that, among other things, highlights the continuing traction of the Christian tradition and Christian practice within secular societies; David Walker’s notion of the multiple ways through which in secular societies people may relate to the Christian tradition as embodied within the Anglican Church and John Fisher’s notion of spiritual wellbeing as conceptualised in relational terms. Against this conceptual background, (...) this paper draws on data provided by 1234 participants attending one of the Christmas Eve carol services in Liverpool Cathedral to explore the perceived impact of attendance on the spiritual health of people who do not believe in God and yet feel that Liverpool Cathedral is their cathedral, and it is this sense of belonging that brings them back at Christmas time.Contribution: Situated within the science of cathedral studies, this paper links in an original way three fields of discourse: Edward Bailey’s notion of implicit religion, David Walker’s notion of the four ways of belonging to God facilitated by the Anglican Church and John Fisher’s conceptualisation and operationalisation of the notion of spiritual wellbeing. The hypothesis developed from this original integration of theoretical perspectives is then tested empirically on data provided by 404 participants at carol services who do not believe in God. (shrink)

J.L. Ackrill's work on Plato and Aristotle has had a considerable influence upon ancient philosophical studies in the late twentieth century. This volume collects the best of Ackrill's essays on the two greatest philosophers of antiquity. With philosophical acuity and philological expertise he examines a wide range of texts and topics--from ethics and logic to epistemology and metaphysics--that continue to be in the focus of debate.

Semantic Scholar extracted view of "Animal Welfare and Rights: V. Zoos and Zoological Parks" by J. Dunlap et al.

This article has two objectives. First, and in particular, it seeks to reinterpret the ostracism procedure of early democratic Athens. Since Aristotle, this has been understood as a rational, political weapon of collective defense, intended to expel from Athens a disproportionately powerful individual. In this article, by putting emphasis on themateriality, gestures, and location of ostraka-casting, I propose instead that the institution can more fruitfully be understood as a ritual enactment of civic unity. Second, and more generally, I hope to (...) explore the frames within which early Athenian democracy is placed: while Greek kingship and tyranny (i.e. “primitive” polities) have been very successfully explored through anthropological and cross-cultural comparison, Greek democracy for the most part has remained in the domains of the institutional historian and political theorist. Taking a phenomenological and comparative approach, this article asks how the citizens of early democratic Athens experienced and comprehended their new sovereignty and the invented procedures of mass decision-making through which it was expressed. (shrink)

I INTRODUCTION: RESPECT, EQUALITY AND THE AUTONOMY OF MORALITY We often invoke a notion of respect to express our sense of human equality. ...

Michigan is a critical agricultural state, and small family farms are a crucial component of the state’s food sector. This paper examines how the race/ethnicity of the family farm owners/operators is related to farm characteristics, financing, and impacts of the pandemic. It compares 75 farms owned/operated solely by Whites and 15 with People of Color owners/operators. The essay examines how farmers finance their farm operations and the challenges they face doing so. The article also explores how the Coronavirus-19 pandemic affected (...) farming operations, the financial viability of farms, and how farmers responded to the challenges posed by the pandemic. The study found that People of Color farm owners/operators were younger than White farm owners/operators. The People of Color farm owners/operators tended to manage smaller farms for shorter periods than White farm owners/operators. Though two-thirds of the Farmers of Color owned their farms, they were more financially vulnerable than White farm owners/operators. The farmers studied had difficulty obtaining loans to finance their farms. Farmers reported increasing requests from people for food assistance during the pandemic. Farmers responded to the pandemic by participating in government programs such as the Farm to Families Food Box Program that purchased their produce. It allowed farmers to supply emergency food assistance programs with products from their farms. The products went to families receiving food assistance from soup kitchens, food banks, and other community-based nonprofits. (shrink)

The mechanistic theory of life.--Criticism of the mechanistic theory.--Biology and the physical sciences.--Personality.

This book is unified by three broad concerns: the rationality of belief in God, the relation between religion and morality, and the explication of the concept of God. The essays are, however, marked by diversity. Some focus on historical figures, such as Aquinas and Locke; others bring recent epistemological and metaphysical developments to bear on problems of religious belief. Some of the papers explore neglected issues central to religious practice, such as the question of how total devotion to God can (...) permit other deep commitments; others apply philosophical distinctions from within a religious tradition, for example, in setting out a Christian approach to the problem of evil. (shrink)

The continuing power of racist ideology threatens liberal democracy, for racism is more than a personal bias or a social construction. It is an ideological framework that reduces human beings to an existence along a color-coded spectrum, with people designated as “white” at the top of the hierarchy and people designated as “black” at the bottom. One has to see this ideology clearly in order to choose a proper response and then act accordingly. First, the reality of “race” has been (...) exposed as unscientific and illusory, and as based not on biology or genetics, but on a legacy of empowerment for some and enslavement for others. Second, this racist ideology, part of our disenchanted, secular age, is exposed as a continuing form of enchantment in its manner of seeing the world, opening the possibility for a spiritual response. Third, dismantling this racist ideology requires a reimagining of “blackness” as a source of life and spirituality, as a way of countering and rewriting the dominant racist narrative. Fourth, a postsecular spiritualty, based on the work of Pope Francis—that emphasizes the importance of protecting our common human dignity, of caring for each other, and of “walking together”—can be engaged as a path for action in the battle against racism. (shrink)