Search results for "Cone"
showing 10 items of 772 documents
Recent Developments in Calixarenes and Their Properties
1989
The increasing number of reports, monographs and patents dealing with the hemistry of inclusion compounds shows the growing interest of organic chemists in elaborating new chemical systems presenting novel physical and chemical properties. These properties are available for fundamental as well as applied research. On the one hand, basic studies on the structure and the nature of inclusion compounds provide information on the intermolecular forces implicated in organized systems and in enzyme processes. On the other hand, applications are in progress in laboratories and industries, for instance, in catalyzing chemical reactions, in transporting and extracting metallic cations, and in modifyi…
Special Calixarenes, Synthesis and Properties
1991
In the previous chapter the standard one step procedures for the synthesis of calixarenes from p-tert-butyl phenol and several p-alkyl phenols have been described. However, these procedures necessarily lead to calixarenes consisting of one single type of phenolic unit. This remains true even for those compounds in which all the terf-butyl groups are removed and replaced by other functional groups. The construction of more sophisticated, special calixarenes which could serve for instance as enzyme models, requires new synthetic approaches capable of producing molecules with selected functionalization.
$varphi$-pairs and common fixed points in cone metric spaces
2008
In this paper we introduce a contractive condition, called $\varphi \textrm{-}pair$, for two mappings in the framework of cone metric spaces and we prove a theorem which assures existence and uniqueness of common fixed points for $\varphi \textrm{-}pairs$. Also we obtain a result on points of coincidence. These results extend and generalize well-known comparable results in the literature.
Common fixed points in cone metric spaces for CJM-pairs
2011
Abstract In this paper we introduce some contractive conditions of Meir–Keeler type for two mappings, called f - M K -pair mappings and f - C J M -pair (from Ciric, Jachymski, and Matkowski) mappings, in the framework of regular cone metric spaces and we prove theorems which guarantee the existence and uniqueness of common fixed points. We give also a fixed point result for a multivalued mapping that satisfies a contractive condition of Meir–Keeler type. These results extend and generalize some recent results from the literature. To conclude the paper, we extend our main result to non-regular cone metric spaces by using the scalarization method of Du.
Moran on self-knowledge, agency and responsibility
2006
Este trabajo se ocupa de la concepción del autoconocimiento en el influyente libro de Richard Moran Authority and Estrangement (Princeton University Press, 2001). Tras presentar las líneas maestras de dicha concepción, sostengo que ésta, a pesar de su novedad e interés, adolece de defectos importantes. Así, con respecto a las creencias formadas mediante la deliberación, la propuesta de Moran parece enfrentarse, bien a problemas de circularidad, en el sentido de que presupone ya el autoconocimiento, es decir, el fenómeno mismo que se pretende explicar, bien a un problema de regreso infinito. En segundo lugar, sostengo que la propuesta de Moran parece también insatisfactoria acerca de creenci…
Más de medio siglo de problema Gettier
2016
After more than half a century, the debate on the Gettier problem is still alive and continues to produce proposals of solution (or dissolution) that, regardless of their success, constitute interesting contributions to epistemology and even to other philosophical areas. As is well known, the Gettier problem is the challenge to provide an analysis of knowledge free of counterexamples. In this paper, first I review and critically examine the main pro-posals to tackle the problem; then, I draw some conclusions and offer my own suggestions. Después de más de medio siglo, el debate en torno al conocido como problema Gettier continúa vivo y produciendo propuestas de solución (o disolución) que, …
First-person authority and Self-Knowledge as an Achievement
2009
There is much that I admire in Richard Moran¿s account of how first- person authority may be consistent with self-knowledge as an achievement. In this paper, I examine his attempt to characterize the goal of psychoanalytic treatment, which is surely that the patient should go beyond the mere theoretical acceptance of the analyst¿s interpretation, and requires instead a more intimate, first-personal, awareness by the patient of their psychological condition. I object, however, that the way in which Moran distinguishes between the deliberative and the theoretical attitudes is ultimately inconsistent with a satisfactory account of psychoanalytic practice; mainly because, despite Moran¿s claims…
The Mud of Experience and Modes of Awareness
2007
In *Authority and Estrangement* Richard Moran takes some rather illuminating steps towards getting rid of the Cartesian picture of self-knowledge. I argue, however, that Moran¿s crucial distinction between delib- erative and theoretical attitude is seriously contaminated by that traditional picture. More specifically, I will point out why some crucial aspects of the phenomena that Moran describes in terms of the interplay be- tween the theoretical and the deliberative attitude, should rather be interpreted as a process that takes place within the deliberative attitude itself. The theoretical attitude will, as a result, constitute a rather marginal at- titude towards one¿s own psychological …
Belief, Content and Cause
1997
In some important papers, and especially in his 'The Problem of the Essential Indexical', John Perry has argued that we should draw a clear distinction between two aspects of belief: its causal role in action, on the one hand, and its semantic content (the proposition that is believed), on the other. According to Perry, beliefs with the same semantic content (with the same truth conditions) may have a very different causal influence on the subject¿s action. In this paper, we show that Perry's arguments in favor of this thesis are not sound and defend, against him, the common sense intuition according to which what leads us to act as we do is what we believe (the semantic content of our beli…
Proper Beliefs and Quasi-Beliefs
2013
In this paper, we distinguish two ways in which someone can be said to believe a proposition. In the light of this distinction, we question the widely held equivalence between considering a proposition true and believing that proposition. In some cases, someone can consider a proposition true and not properly believe it. This leads to a distinction between the conventional meaning of the sentence by which a subject expresses a belief and the content of this belief. We also question some principles of belief ascription, suggest a solution to a famous puzzle about belief and defend the unity of the semantic and causal aspects of beliefs.