Understanding the causes of maize landrace loss in farmers’ field is essential to design effective conservation strategies. These strategies are necessary to ensure that genetic resources are available in the future. Previous studies have shown that this loss is caused by multiple factors. In this longitudinal study, we used a collection of 93 maize landrace accessions from Morelos, Mexico, and stored at the International Maize and Wheat Improvement Center (CIMMYT) Maize Germplasm Bank, to trace back to the original 66 donor (...) families after 50 years and explore the causes for why they abandoned or conserved their seed lots. We used an actor-centered approach, based on interviews and focus group discussions. We adopt a Multi-Level Perspective framework to examine loss as a process, accommodating multiple causes and the interactions among them. We found that the importance of maize landrace cultivation had diminished over the last 50 years in the study area. By 2017, 13 families had conserved a total of 14 seed lots directly descended from the 1967 collection. Focus group participants identified 60 accessions that could still be found in the surrounding municipalities. Our findings showed that multiple interconnected changes in maize cultivation technologies, as well as in maize markets, other crop markets, agricultural and land policies, cultural preferences, urbanization and climate change, have created an unfavorable environment for the conservation of maize landraces. Many of these processes were location- and landrace-specific, and often led to landrace abandonment during the shift from one farmer generation to the next. (shrink)

This unique volume will appeal to those interested in the philosophy of mind, cognitive science, and artificial intelligence as well as students of Castaneda and Latin American philosophy.

Understanding the causes of maize landrace loss in farmers’ field is essential to design effective conservation strategies. These strategies are necessary to ensure that genetic resources are available in the future. Previous studies have shown that this loss is caused by multiple factors. In this longitudinal study, we used a collection of 93 maize landrace accessions from Morelos, Mexico, and stored at the International Maize and Wheat Improvement Center Maize Germplasm Bank, to trace back to the original 66 donor families (...) after 50 years and explore the causes for why they abandoned or conserved their seed lots. We used an actor-centered approach, based on interviews and focus group discussions. We adopt a Multi-Level Perspective framework to examine loss as a process, accommodating multiple causes and the interactions among them. We found that the importance of maize landrace cultivation had diminished over the last 50 years in the study area. By 2017, 13 families had conserved a total of 14 seed lots directly descended from the 1967 collection. Focus group participants identified 60 accessions that could still be found in the surrounding municipalities. Our findings showed that multiple interconnected changes in maize cultivation technologies, as well as in maize markets, other crop markets, agricultural and land policies, cultural preferences, urbanization and climate change, have created an unfavorable environment for the conservation of maize landraces. Many of these processes were location- and landrace-specific, and often led to landrace abandonment during the shift from one farmer generation to the next. (shrink)

Este artículo presenta la cuestión de si las creencias religiosas son o no razonables, es decir, si tienen o no una evidencia razonable que las sustente. El interés no es comprobar la existencia de Dios, sino simplemente saber si el lenguaje religioso como tal tiene o no sentido. Para esto, primero veremos la concepción de la creencia en general. A continuación, trataremos las creencias religiosas bajo dos puntos de vistas totalmente opuestos: por un lado, se expondrá la posición de autores (...) que dicen que las creencias religiosas sí tienen una evidencia razonable que las sustenta y, por otro, nos encontraremos con autores que afirman que dichas creencias no pueden ser justificadas racionalmente porque lo espiritual refiere el ámbito de lo indecible, en el cual no es factible afirmar que los enunciados religiosos son apropiados a ser verdaderos o falsos. (shrink)

This article inquires whether or not religious beliefs are rational, that is to say, whether or not they can be rationally sustained. The point of the article is not to prove the existence of God, but rather simply to show whether or not religious language has real meaning. To do this, we shall examine the concept of belief in general. Then we shall look at religious beliefs in particular from two opposing points of view: on the one hand, from the (...) position of authors who claim that religious beliefs can in fact be sustained by rational evidence, and on the other hand, from the perspective of other authors who affirm that these beliefs cannot be rationally justified, because spiritual discourse refers to the ineffable, which deprives it of the means to verify or deny its propositions. (shrink)

El artículo presenta un examen de la relación entre la teología cristiana católica en México en el siglo XVII, específicamente en las ideas de autores pertenecientes a la Compañía de Jesús, y el estilo barroco de las obras que se crearon en dicho periodo, sobre todo en pintura, poesía y arquitectura. Se estudian especialmente las ideas expresadas por Tomás de Alfaro, S.J. (ca. 1667) y Luis de Villanueva, S.J. (1605-1659).

H´ector-Neri Casta˜neda-Calder´on (December 13, 1924–September 7, 1991) was born in San Vicente Zacapa, Guatemala. He attended the Normal School for Boys in Guatemala City, later called the Military Normal School for Boys, from which he was expelled for refusing to fight a bully; the dramatic story, worthy of being filmed, is told in the “De Re” section of his autobiography, “Self-Profile” (1986). He then attended a normal school in Costa Rica, followed by studies in philosophy at the University of San (...) Carlos, Guatemala. He won a scholarship to the University of Minnesota, where he received his B.A. (1950), M.A. (1952), and Ph.D. (1954), all in philosophy. His dissertation, “The Logical Structure of Moral Reasoning”, was written under the direction of Wilfrid Sellars. He returned to teach in Guatemala, and then received a scholarship to study at Oxford University (1955–1956), after which he took a sabbatical-replacement position in philosophy at Duke University (1956). His first full-time academic appointment was at Wayne State University (1957– 1969), where he founded the philosophy journal Noˆus (1967, a counter-offer made to him by Wayne State to encourage him to stay there rather than to take the chairmanship of philosophy at the University of Pennsylvania). In 1969, he moved (along with several of his Wayne colleagues) to Indiana University, where he eventually became the Mahlon Powell Professor of Philosophy and, later, its first Dean of Latino Affairs (1978–1981). He remained at Indiana until his death. He was also a visiting professor of philosophy at the University of Texas at Austin (1962–1963) and a fellow at the Center for Advanced Study in the Behavioral Sciences (1981–1982). He received grants and fellowships from the Guggenheim Foundation (1967–1968), the T. Andrew Mellon Foundation, the National Endowment for the Humanities, and the National Science Foundation. He was elected President of the American Philosophical Association Central Division (1979– 1980), named to the American Academy of Arts and Sciences (1990), and received the Presidential Medal of Honor from the Government of Guatemala (1991). Casta˜neda’s philosophical interests spanned virtually the entire spectrum of philosophy, and his theories form a highly interconnected whole.. (shrink)

Caracterización de un grupo de comités de ética en investigación en Colombia Caracterização de um grupo de comitês de ética em pesquisa na Colômbia In the last decades, controlled clinical trials sponsored by the pharmaceutical industry have increased considerably. This has led to the need for greater control and assistance by regulators and ethics committees to ensure appropriate compliance with established ethical standards and good clinical practices in general. In Colombia, the National Food and Drug Surveillance Institute, the regulator in (...) the country, controls and monitors the operation of clinical research with drugs. In 2008, this entity issued Resolution 2378, which provides and regulates research actors in Colombia, including ethics committees. After being in force for several years, it is necessary to know whether research ethics committees in Colombia operate in accordance with this regulation and to determine the status of implementation of the requirements therein. For this purpose, a survey was designed to be voluntarily answered and a response was obtained from 25 of the 69 certified committees in Colombia. Twenty-two of them could be analyzed because their information was complete. Compared with previous studies, favorable changes in development and organization were observed in accordance with the current proposed regulation. Para citar este artículo / To reference this article / Para citar este artigo Suárez-Obando F, Reynales H, Urina M, Camacho J, Viteri M. Caracterización de un grupo de comités de ética en investigación en Colombia. pers. bioét. 2018; 22: 303-318. DOI: 10.5294/pebi.2018.22.2.8. (shrink)

The late Hector-Neri Castañeda, the Mahlon Powell Professor of Philosophy at Indiana University, and founding editor of Noûs, has deeply influenced current analytic philosophy with diverse contributions, including guise theory, the theory of indicators and quasi-indicators, and the proposition/practition theory. This volume collects 15 papers--for the most part previously unpublished--in ontology, philosophy of language, cognitive science, and related areas by ex-students of Professor Castañeda, most of whom are now well-known researchers or even distinguished scholars. The authors share the conviction that (...) Castañeda's work must continue to be explored and that his philosophical methodology must continue to be applied in an effort to further illuminate all the issues that he so deeply investigated. The topics covered by the contributions include intensional contexts, possible worlds, quasi-indicators, guise theory, property theory, Russell's substitutional theory of propositions, event theory, the adverbial theory of mental attitudes, existentialist ontology, and Plato's, Leibniz's, Kant's, and Peirce's ontologies. An introduction by the editors relates all these themes to Castañeda's philosophical interests and methodology. (shrink)

On the 4th of December 1967, Hans Kamp sent his UCLA seminar notes on the logic of ‘now’ to Arthur N. Prior. Kamp’s two-dimensional analysis stimulated Prior to an intense burst of creativity in which he sought to integrate Kamp’s work into tense logic using a one-dimensional approach. Prior’s search led him through the work of Castañeda, and back to his own work on hybrid logic: the first made temporal reference philosophically respectable, the second made it technically feasible in a (...) modal framework. With the aid of hybrid logic, Prior built a bridge from a two-dimensional UT calculus to a one-dimensional tense logic containing the ‘now’ operator J. Drawing on material from the Prior archive, and the paper “‘Now”’ that detailed Prior’s findings, we retell this story. We focus on Prior’s completeness conjecture for the hybrid system and the role played by temporal reference. (shrink)

We present a computational analysis of de re, de dicto, and de se belief and knowledge reports. Our analysis solves a problem first observed by Hector-Neri Castañeda, namely, that the simple rule -/- `(A knows that P) implies P' -/- apparently does not hold if P contains a quasi-indexical. We present a single rule, in the context of a knowledge-representation and reasoning system, that holds for all P, including those containing quasi-indexicals. In so doing, we explore the difference between reasoning (...) in a public communication language and in a knowledge-representation language, we demonstrate the importance of representing proper names explicitly, and we provide support for the necessity of considering sentences in the context of extended discourse (for example, written narrative) in order to fully capture certain features of their semantics. (shrink)

Philosophy has been characterized (e.g., by Benson Mates) as a field whose problems are unsolvable. This has often been taken to mean that there can be no progress in philosophy as there is in mathematics or science. The nature of problems and solutions is considered, and it is argued that solutions are always parts of theories, hence that acceptance of a solution requires commitment to a theory (as suggested by William Perry's scheme of cognitive development). Progress can be had in (...) philosophy in the same way as in mathematics and science by knowing what commitments are needed for solutions. Similar views of Rescher and Castañeda are discussed. (shrink)

This essay re-examines Meinong's "Über Gegenstandstheorie" and undertakes a clarification and revision of it that is faithful to Meinong, overcomes the various objections to his theory, and is capable of offering solutions to various problems in philosophy of mind and philosophy of language. I then turn to a discussion of a historically and technically interesting Russell-style paradox (now known as "Clark's Paradox") that arises in the modified theory. I also examine the alternative Meinong-inspired theories of Hector-Neri Castañeda and Terence Parsons.

A brief introduction to Meinong, his theory of objects, and modern interpretations of it. Sections include: The Theory of Objects, Castañeda's Theory of Guises, Parsons,'s Theory of Nonexistent Objects, Rapaport's Theory of Meinongian Objects, Routley's Theory of Items.

According to the propositional view of belief, a belief situation involves a believer’s standing in the relation of belief to a proposition. It is argued that the propositional view has unacceptable implications concerning the identity conditions of belief situations involving beliefs with indexical contents, especially where such beliefs are held over a period of time during which background circumstances change. After a critical discussion of Perry’s alternative to the propositional view, a version of the adverbial theory of belief, which accounts (...) satisfactorily for the identity conditions of belief situations, is advanced. This theory, which avoids the standard objections to adverbialism, is defended against the charge that it cannot provide an account of the semantics of sentences attributing the same belief to two or more believers. In the course of this defense it is argued that the standard propositional account of such sentences is insensitive to everyday language. (shrink)

I argue that José Luis Bermúdez has not shown that there is a paradox in our concept of self-consciousness. The deflationary theory is not a plausible theory of self-consciousness, so its paradoxicality is irrelevant. A more plausible theory, 'the simple theory', is not paradoxical. However, I do think there is a puzzle about the connection between self-consciousness and 'I'-thoughts.

Natural languages differ from most formal languages in having a partial, rather than a total, semantic interpretation function; e.g., some noun phrases don't refer. The usual semantics for handling such noun phrases (e.g., Russell, Quine) require syntactic reform. The alternative presented here is semantic expansion, viz., enlarging the range of the interpretaion function to make it total. A specific ontology based on Meinong's Theory of Objects, which can serve as domain on interpretation, is suggested, and related to the work of (...) Castaneda, Frege, Katz and Fodor, Parsons, and Scott. (shrink)

Natural languages differ from most formal languages in having a partial, rather than a total, semantic interpretation function; e.g., some noun phrases don't refer. The usual semantics for handling such noun phrases (e.g., Russell, Quine) require syntactic reform. The alternative presented here is semantic expansion, viz., enlarging the range of the interpretaion function to make it total. A specific ontology based on Meinong's Theory of Objects, which can serve as domain on interpretation, is suggested, and related to the work of (...) Castaneda, Frege, Katz and Fodor, Parsons, and Scott. (shrink)

Deliberate contextual vocabulary acquisition (CVA) is a reader’s ability to figure out a (not the) meaning for an unknown word from its “context”, without external sources of help such as dictionaries or people. The appropriate context for such CVA is the “belief-revised integration” of the reader’s prior knowledge with the reader’s “internalization” of the text. We discuss unwarranted assumptions behind some classic objections to CVA, and present and defend a computational theory of CVA that we have adapted to a new (...) classroom curriculum designed to help students use CVA to improve their reading comprehension. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Freedom, Truth, and Human Dignity: The Second Vatican Council’s Declaration on Religious Freedom: A New Translation, Redaction History, and Interpretation of “Dignitatis humanae.” by David L. Schindler and Jr. Nicholas J. HealyBarrett H. TurnerFreedom, Truth, and Human Dignity: The Second Vatican Council’s Declaration on Religious Freedom: A New Translation, Redaction History, and Interpretation of “Dignitatis humanae.” By David L. Schindler and Nicholas J. Healy, Jr. Grand Rapids, Mich.: (...) Eerdmans, 2015. Pp. xiv + 477. $45.00 (paper). ISBN: 978-0-8028-7155-8.“I fear that you are going to give the inaccurate impression that this document was exclusively the work of the Americans at the Council, or nearly so,” wrote Ernest Primeau, an American bishop who helped revise Dignitatis humanae (DH) at Vatican II, to a priest-journalist. “The truth is... that many others from other nations played an important role in the writing and passage of the declaration.” Despite Primeau’s warning, popular and scholarly interpretations of DH have often hewed closely to John Courtney Murray’s juridical approach, usually in contrast to the integralism of Cardinal Alfredo [End Page 309] Ottaviani and the Spanish episcopate. Yet “many others” did not fit into those two groups, for a large contingent of bishops favorable to religious liberty nonetheless sought to undergird the juridical reasoning for the right with an ontological foundation.David L. Schindler and Nicholas Healy promote these other voices in Freedom, Truth, and Human Dignity. Indeed, they argue that the other voices—the “French” or “ontological” school comprised of bishops such as Alfred Ancel and Karol Wojtyła—provide the true key to DH’s meaning and significance. The book thus responds from the perspective of Communio theology to Murray-ite political theologies that are critical of John Paul II’s emphasis on truth as the basis for freedom. Accompanying Schindler’s and Healy’s essays are conciliar texts charting the origin and influence of this ontological school: the six conciliar drafts, the oral and written interventions of Wojtyła, and an oral intervention of Ancel. These texts, transcribed from the Acta Synodalia Sacrosancti Concilii Oecumenici Vaticani II (AS), have been translated by Patrick T. Brannon, S.J., and Michael Camacho. Also included is a side-by-side comparison of the third and sixth drafts that displays the changes made to the juridical position in response to the ontological school.Schindler’s 170-page essay, “Freedom, Truth, and Human Dignity: An Interpretation of Dignitatis Humanae on the Right to Religious Freedom,” is the heart of the work. Schindler recapitulates in a fresh way themes from his prior analyses of liberalism and Murray. In section 1, he summarizes how Wojtyła’s interventions influenced the evolution of DH such that Murray’s juridical approach became subordinated to an emphasis on truth as the foundation and telos of freedom. He conveys Wojtyła’s concern that DH not divide reason and revelation, but that reason be presented as capable of knowing that religion is “nature’s crown and summit” (50). Section 2 outlines Murray’s postconciliar objections to DH’s final version, namely, that it assumes that the American juridical approach leads to relativism and that its insistence on truth as religious liberty’s foundation undermines the universality of the right by degrading the liberty of those in error. To the first, Schindler replies (in section 3) that Murray’s juridical approach necessarily entails what Servais Pinckaers, O.P., called the “freedom of indifference,” Murray’s denials of relativism notwithstanding. The juridical approach leads to the conception of civil space as something neutral to truth-claims about God, but finally results in a state-enforced indifferentism that limits the religious liberty of those who hold that all of existence, prior to human freedom, is intrinsically ordered to God. “The human act, considered from the perspective of the juridical order, is first empty; and truth thus becomes, from that same juridical perspective, adventitious, something that, as such, cannot but logically burden the free-intelligent human act by arbitrarily limiting and closing what is considered by government, for legal purposes, to be simply open, or abstracted from all (metaphysical-religious) content... (shrink)

Studies in Wilfrid Sellars' philosophy: Aune, B. Sellars on practical reason.--Castañeda, H.-N. Some reflections on Wilfrid Sellars' theory of intentions.--Donagan, A. Determinism and freedom: Sellars and the reconciliationist thesis.--Robinson, W. S. The legend of the given.--Clark, R. The sensuous content of perception.--Grossmann, R. Perceptual objects, elementary particles, and emergent properties.--Rosenberg, J. F. The elusiveness of categories, the Archimedean dilemma, and the nature of man: a study in Sellarsian metaphysics.--Turnbull, R. G. Things, natures, and properties.--Wells, R. The indispensable word "now."--Van Fraassen, (...) B. C. Theories and counterfactuals.--Harman, G. H. Wilfrid Sellars' Theory of induction.--Sellarsiana: Sellars, W. Autobiographical reflections.--Sellars, W. The structure of knowledge. Lecture I, perception. Lecture II, minds. Lecture III, epistemic principles.--Wilfrid Sellars' Philosophical bibliography. (p. 349-353). (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)

Clark, R. L. Facts, fact-correlates, and fact-surrogates.--Heintz, J. The real subject-predicate asymmetry.--Stenius, E. All men are mortal.--Wilson, N. L. Notes on the form of certain elementary facts.--Binkley, R. The ultimate justification of moral rules.--Castañeda, H. Goodness, intentions, and propositions.--Patterson, R. L. An analysis of faith.--Simpson, E. Discrimination as an example of moral irrationality.--Welsh, P. Osborne on the art of appreciation.--Lachs, J. The omnicolored sky: Baylis on perception.--Strawson, P. F. Causation in perception.--Reid, C. L. Charles A. Baylis: a bibliography.

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 ...

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.