Dilation occurs when an interval probability estimate of some event E is properly included in the interval probability estimate of E conditional on every event F of some partition, which means that one’s initial estimate of E becomes less precise no matter how an experiment turns out. Critics maintain that dilation is a pathological feature of imprecise probability models, while others have thought the problem is with Bayesian updating. However, two points are often overlooked: (1) knowing that E is stochastically (...) independent of F (for all F in a partition of the underlying state space) is sufficient to avoid dilation, but (2) stochastic independence is not the only independence concept at play within imprecise probability models. In this paper we give a simple characterization of dilation formulated in terms of deviation from stochastic independence, propose a measure of dilation, and distinguish between proper and improper dilation. Through this we revisit the most sensational examples of dilation, which play up independence between dilator and dilatee, and find the sensationalism undermined by either fallacious reasoning with imprecise probabilities or improperly constructed imprecise probability models. (shrink)

Traditionally, species have been treated as classes or kinds in philosophical discussions of systematics and evolutionary biology. Recently a number of biologists and philosophers have proposed a drastic revision of this traditional ontological categorization. They have argued that species ought be viewed as individuals rather than as classes or natural kinds. In this paper an attempt is made to show that (a) the reasons advanced in support of this new view of species are not persuasive, (b) a reasonable explication can (...) be given of the treatment of species as classes that is consistent with current theory and practice in evolutionary biology and systematics, and (c) that once certain confusions concerning the species concept have been clarified, there are good theoretical grounds for maintaining that species are best viewed as classes or kinds. (shrink)

Last year marked the fiftieth anniversary of the inauguration of Brazil’s capital Brasilia. Designed by architects Lúcio Costa and Oscar Niemeyer, it has since become one of the most famous and widely studied urban planning projects. Niemeyer’s cathedral, Catedral Metropolitana Nossa Senhora Aparecida; his building for the national parliament, the Congresso Nacional; and the city’s 707-foot television tower have become icons of twentieth-century architecture. The entire city, marked by its cross-shaped layout and vast open spaces, was named a UNESO World (...) Heritage site in 1987. René Burri, an internationally celebrated Swiss-born photographer and member of the legendary Magnum agency, visited the city for the first time on a long journey around South America in 1958, when most of Brasilia was a vast building site. He returned many times over more than thirty years, documenting the growth and development of this urban utopia. Besides documenting the buildings in various stages of completion, Burri took portraits of Niemeyer and his workers and photographed Brasilia’s street scenes and people: workers with their tools, machinery and building materials, pedestrians on the newly finished streets and squares, and aerial views from the air of the city’s first slums abutting brand-new blocks of residential buildings. His images capture the strong sense of a new era and a vibrant atmosphere of hard work and strain; they reflect the huge dimensions of the landscape and the great scale of this project and its ambition to design and build a new capital—and fill it with life. Complete with an essay by eminent architect and scholar of architectural history Arthur Rüegg, René Burri. Brasilia marks the city’s fiftieth anniversary and allows readers to look at an extraordinary city through the eyes of an exceptional photographer. (shrink)

La campagne 2012 – qui a vu pratiquement l’achèvement des travaux de sélection et le catalogage des terres cuites figurées, des monnaies et des autres objets recueillis en 1970‑1971 dans le sanctuaire de la colline de Dautë – était la dernière réunissant toute l’équipe au musée de Durrës. Les 11e et 12e campagnes d’étude étaient donc d’importance bien réduite par rapport aux années précédentes : seuls les céramologues, lesquels n’ont commencé leurs travaux qu’en 2006 sur un mobilier surabonda...

Lewis was not, and is not, very popular in the academy. I think there are three reasons.First, he did not stick to his subject, which was medieval and Renaissance literature. He wrote highly successful children's books, theological works, and articles accessible to nonspecialists, and was an acclaimed broadcaster. All this allowed his critics to suggest that he was not a proper academic, because proper academics do not throw their nets so wide.Second, he was good at everything he did (except perhaps (...) some areas of philosophy: he was famously bested by Elizabeth Anscombe when he ventured onto her home ground). This was perhaps the most infuriating thing about him. The justification for academic superspecialization is that one cannot do more than one thing really well. But Lewis did. He was a better Renaissance scholar than those who criticized him, moaned about him in the Oxford cloisters, and blackballed him for appointments. He is relentlessly readable; therefore (said his detractors) his scholarship must be shoddy.Lewis infuriates me too. Often, when I think I have had an original thought in some domain a million miles from Renaissance literature, I discover not only that Lewis had had that thought already, but had explicated it, seeing angles I never noticed, and more often than not he had exploded it, using a tenth of the words I used, and all in devastatingly simple prose that would entertain and illuminate the most uninterested plumber.And third, of course, he was a Christian, which was then becoming an unforgivable sin, as it remains now in the humanities (though not the physical sciences or mathematics). The usual (stated) objection to academic Christians is that their theological commitment precludes objectivity, but Lewis's academic writing (notably his English Literature in the Sixteenth Century: Excluding Drama [1954]) was so good that that indictment could not stick, and his opponents descended into incoherent fulmination about superannuated paradigms.These reasons help to explain the chilly reception (or, more often, nonreception) by self-billed “serious thinkers” of Lewis's “space trilogy”: Out of the Silent Planet, Perelandra, and That Hideous Strength (hereafter THS). In relation to THS there is another reason: the novel is about them. No, about us. Lewis's view of us is just too keen, his diagnosis too alarming.The main concerns of THS are dehumanization, the role of institutions in that dehumanization, and the desire of individuals to be part of an esoteric circle. More broadly, it concerns the nature of evil. Its debt to the Divine Comedy and to Charles Williams, Lewis's fellow Inkling, are clear.The central character is a young academic, Mark Studdock. We all know him. His education had been “neither scientific nor classical—merely ‘Modern.’ That left him pathetically manipulable. The severities both of abstraction and of high human tradition had passed him by: and he had neither peasant shrewdness nor aristocratic honour.” Studdock was “a man of straw, a glib examinee in subjects that require no exact knowledge.” He stood for nothing; he weighed nothing.Humans are not supposed to be weightless. We will do anything to convince ourselves that we have mass. Many of our strategies are counterproductive. Some are disastrous and lead to dissolution. Studdock's strategy is one of the commonest and most catastrophic: he tries to get to the center of things—to the “Inner Ring” whose geography is described by Lewis in his 1944 lecture (and later essay) of that name. At some level, at least occasionally, Studdock knows the stupidity of this ambition, but he closes his eyes and his mind. And he begins to be used by forces far greater than any he had dreamed of.The book opens with a merciless (and horribly entertaining) account of academic politics. Read it and cringe in recognition: the mechanics of toadyism; the devices for getting your own way with a committee (put the real business in coded form at the end of an agenda, to be dealt with on a hot day after lunch); infuse everything with an appeal to self-interest, but never put it quite like that, for fear of awakening long-dormant altruism. Obfuscate: do not call the sale of an ancient woodland in which Merlin's body lies “the sale of Bragdon Wood” but the sale of “the area coloured pink on the plan.” Learn to talk like the bursar of Studdock's college, for each of his sentences was “a model of lucidity: and if his hearers found the gist of his whole statement less clear than the parts, that may have been their fault.” As a manual for getting your own way in institutions, The Prince is artless and benign beside THS.Studdock becomes a pawn in a big and diabolical game. A vast organization, the National Institute for Coordinated Experiments, known, of course, as “NICE” (never underestimate the importance of an acronym), which turns out to be the instrument of dark supernatural forces, is becoming a state within a state. It is unaccountable. That is its tagline, indeed: it will be free of the red tape that inhibits the research of more conventional institutions. And who can define with sufficient exactitude the difference in principle between tedious administrative red tape and moral stricture? If you are in with the NICE, anything goes.The NICE's project is the unmaking of everything that is quintessentially human and, eventually, everything that is biological. Life itself is just too unhygienic. Beauty is a joke. Sentiment a delusion. Love merely a result of chemical interactions in the brain. Nothing signifies.The NICE has a handful of opponents—a raggedy bunch (including a bear) under the direction of Ransom, who has traveled outside planet Earth in the previous two books in the trilogy. The company, it turns out, is the remnant of the old Arthurian kingdom of Logres, which has always been in tension, if not war, with the modern kingdom of Britain: “Haven't you noticed that we are two countries? After every Arthur, a Mordred; behind every Milton, a Cromwell: a nation of poets, a nation of shopkeepers: the home of Sidney—and of Cecil Rhodes.” They recruit Studdock's wife, Jane, who can spy clairvoyantly on the NICE, and then a revived Merlin comes from his tomb to their aid.THS is strong meat. Many will balk at its supernaturalism, and perhaps in particular its complementarian view of the relationship between the sexes. But hear Lewis out: you might not agree with him, but he is always interesting. When I read THS thirty years ago, I thought it a ripping yarn. It still is. But now I see it as prescient, prophetic, and profoundly important. It should be on every university reading list, for every subject, and no one should be allowed to hold any kind of public office until they have shown that they have assimilated its lessons. (shrink)

We prove two theorems which in a certain sense show that the number of normal measures a measurable cardinal κ can carry is independent of a given fixed behavior of the continuum function on any set having measure 1 with respect to every normal measure over κ . First, starting with a model V ⊨ “ZFC + GCH + o = δ*” for δ* ≤ κ+ any finite or infinite cardinal, we force and construct an inner model N ⊆ V (...) [G] so thatN ⊨ “ZF + [DCδ] + ¬ACκ + κ carries exactly δ* normal measures + 2δ = δ++ on a set having measure 1 with respect to every normal measure over κ”.There is nothing special about 2δ = δ here, and other stated values for the continuum function will be possible as well. Then, starting with a modelV ⊨ “ZFC + GCH + κis supercompact”,we force and construct models of AC in which, roughly speaking, regardless of the specified behavior of the continuum function below κ on any set having measure 1 with respect to every normal measure over κ, κ can in essence carry any number of normal measures δ* ≥ κ++. (shrink)

Procuro explorar uma possível base biológica que tenha relevância explicativa entre elementos da ética e o comportamento humano.

This review of Jay Baruch's Tornado of Life: A Doctor's Journey through Constraints and Creativity in the ER considers the book's contributions, including its explorations of the clinical dilemma of working with patients’ stories that are fragmented, how easily clinicians can miss crucial parts of patients’ stories and how that affects care, and the “agonizing compromises” between what patients need and what institutions can provide. Baruch acknowledges, without any self‐indulgence, the shame that his work causes him, given the limitations of (...) what he can do. (shrink)

Bacteria can grow rapidly, yet there are some that grow slowly under apparent optimal conditions. These organisms are usually present in environments with low levels of nutrients, and are not found in conditions of more plentiful nutrients. They are known as “oligotrophs”in contrast to “copiotrophs”, which are common in environments with greater nutritional opportunities. This essay asks why do the oligotrophs not occupy richer environments, and why are copiotrophs not more prevalent in chronic starvation environments? BioEssays 23:657–661, 2001. © 2001 (...) John Wiley & Sons, Inc. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in (...) the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Interpretation strives, for one thing, toward unification. One means of unifying is the category I call "repetition"; and reflection is one of its types. In order to identify the concept of reflection, I shall outline the various types of repetition and add some comments on this type in particular. I shall then consider several of the philosophical problems raised by the supposition that the reflective relationships do exist in the materials interpreted.

‘Ik vind het idee van het sterven vreselijk, want ik houd van het leven zolang ik het werkelijk kan leven. Maar de dood is een gift van de goden, een manier om aan het leven te ontsnappen als het werkelijk ondraaglijk is. Hoewel ik een filosofisch systeem heb ontworpen, bevat dat geen levensfilosofie. Ik heb een levensfilosofie, namelijk blijven leven tot ik omval.’.