In this paper, we propose a new and simple method for image encryption. It uses an external secret key of 128 bits long and an internal secret key. The novelties of the proposed encryption process are the methods used to extract an internal key to apply the zigzag process, affine transformation, and substitution-diffusion process. Initially, an original gray-scale image is converted into binary images. An internal secret key is extracted from binary images. The two keys are combined to compute the (...) substitution-diffusion keys. The zigzag process is firstly applied on each binary image. Using an external key, every zigzag binary image is reflected or rotated and a new gray-scale image is reconstructed. The new image is divided into many nonoverlapping subblocks, and each subblock uses its own key to take out a substitution-diffusion process. We tested our algorithms on many biomedical and nonmedical images. It is seen from evaluation metrics that the proposed image encryption scheme provides good statistical and diffusion properties and can resist many kinds of attacks. It is an efficient and secure scheme for real-time encryption and transmission of biomedical images in telemedicine. (shrink)

Les monstres sont des objets inamicaux qui contestent le pouvoir de la raison à dire l'ordre de la nature. La tératologie des Geoffroy Saint-Hilaire est l'une des grandes tentatives rationnelles qui pacifie la figure du monstre en montrant comment ce qui s'apparente au désordre le plus irréductible administre la plus claire des leçons sur l'ordre et l'agencement de la nature dans les êtres vivants. Mais quelque chose du monstre résiste : son apparaître comme monstre. Quelle est la leçon philosophique (...) de cette perception de l'écart monstrueux? Ne pourrait-il pas être un modèle adéquat de compréhension des vivants et de la vie en permettant de faire l'épochè de l'idée d'adaptation? Il faudrait alors penser une errance propre à la vie."--Page 4 of cover. (shrink)

Albert Einstein.--Bertrand Russell.--John Dewey.--R.A. Millikan.--Theodore Dreiser.--H.G. Wells.--Fridtjof Nansen.--Sir James Jeans.--Irving Babbitt.--Sir Arthur Keith.--J.T. Adams.--H.L. Mencken.--Julia Peterkin.--Lewis Mumford.--G.J. Nathan.--Hu Shih.--J.W. Krutch.--Irwin Edman.--Hilaire Belloc.--Beatrice Webb.--W.R. Inge.--J.B.S. Haldane.--Biographical notes. Note: This book was re-published by AMS Press, 1979.

In lieu of an abstract, here is a brief excerpt of the content:84 Reviews THE WAYS OF THE WITTGENSTEINS ACCORDING TO A WAUGH Richard Henry Schmitt U. of Chicago Chicago, il 60637, usa [email protected] AlexanderWaugh. TheHouseofWittgenstein:aFamilyatWar. London: Bloomsbury, 2008. Pp. 366. isbn: 0-7475-9185-7. £20.00 (hb). New York: Doubleday, 2009. Pp. 333. isbn: 0-385-52060-3. us$28.95 (hb). Ezach family is happy and unhappy in its own ways. This is hardly surprising zgiven that the family lies at the crossroad of so much human (...) experience. It is the scene for playing out genetics and for working through the rearing and civilizing of children, both nature and nurture. In economic life it constitutes the primary unit, the household. Despite Tolstoy’s ideal, none can ever be com­ pletely happy for every member all the time. And, there is no reason to think that basically happy families are any more the same than unhappy ones. But then none can ever be completely unhappy; or rather, when a family is com­ pletely unhappy it is unlikely that it will remain one. One other factor, however, intrudes on this picture: we tend to be more interested in bad or scandalous news than good. Vicarious experience brings catharsis, possibly helpful in a way. Yet, as the German language recognizes with the word “Schadenfreudez”, we can experience joy at someone else’s sorrow, despite the questions it raises about our empathy. Alexander Waugh is himself the member of a famous family. He has written December 2, 2009 (5:28 pm) E:\CPBR\RUSSJOUR\TYPE2901\russell 29,1 060 red.wpd E:\CPBR\RUSSJOUR\TYPE2901\russell 29,1 060 red.wpd Reviews 85 its “autobiography” in Fathers and Sons,1 where he is principally concerned with his father Auberon (“Bron”), his grandfather Evelyn, his great-uncle Alec, and his great-grandfather Arthur. Given the family documentation at his disposal and the span of generations, that book covers enough territory, in enough detail, to give us some sense of Waugh family character. You learn what it was like to grow up in the family, down to the odour of Uncle Auberon Herbert’s cologne, “smelling like Cleopatra in her barge on her way to meet Antony for the Wrst time” according to Bron (p. 370, paperback ed.), and the family suspicion that this uncle may have been the illegitimate son of Hilaire Belloc (p. 276). The fathers and sons, from Arthur down to Alexander, all wrote for a living, witty, stylish prose, and sometimes poetry. They especially liked writing about each other in letters, essays, and novels, often to each other in public letters and dedications; and as a consequence Alexander’s book is rich, amusing, intimate, and a bit indiscrete. Arthur’s turn-of-the-century avoidance of emotion in sentimentality grew outmoded, but it was replaced in the family business with newer models, with more Xash and cynicism. When it came to Alexander’s fa­ ther Bron, he was known for his talent at vituperation, and got into verbal and legal scrapes with C. P. Snow and Bertrand Russell among others (p. 407), which led to his getting sacked but only made his journalism more widely read and more valuable to publishers. In Alexander’s disclosure of his family history, there is a sureness of touch that comes from working within his ken. Waugh studied music, and worked as a music critic. In his easy, self-depreci­ ating way, he told an interviewer for The Wall Street Journalz that he got the idea to write this book because of “the most appalling boil on my right index Wnger”. This curtailed his routine enjoyment at the piano, “But then as I sat down and pressed a chord with my left hand I thought of Paul Wittgenstein. I knew about the concerto that Ravel composed for him and I knew that he was Ludwig’s brother. He was bound to have an interesting story.”2 With access to some Witt­ genstein family papers through one of Paul Wittgenstein’s daughters, he began. But a biography of the one-armed pianist soon turned into this “family history”, in part because of the author’s previous success with his own family, but also... (shrink)

Science in the Changing World, first published in 1933, contains a series of broadcasted presentations on the relationship between science and the development of European civilisation in the first half of the 20th century. Specifically, each talk attempts to reflect the crisis through which the world seemed to be passing at the time, and to make an analysis of those forces of transformation in science, art, economics, and social life which were associated most closely with the advent of the 'scientific' (...) century. Included among the presenters are such eminent and diverse thinkers as Julian Huxley, Bertrand Russell and Hilaire Belloc. Science at Your Service: First published in 1945, this collection of twelve BBC broadcasts focuses on the influence of science in everyday life, and demonstrates that not all science is remote and theoretical. Each speaker deals with some aspect of mid-20th century scientific advance as it related to subjects of practical importance, from textiles and tunnels to fishing and ship design. Offering a glimpse into the attitudes towards science current in the middle of the Second World War, this brief and accessible collection will be of interest to cultural historians as well as to the general science enthusiast. (shrink)

Pleasure and Desire The Case of Hedonism Reviewed.

No online description is currently available. If you would like to receive information about this title, please email Routledge at [email protected].

_Marriage and Morals_ is a compelling cross-cultural examination of individual, familial and societal attitudes towards sex and marriage. By exploring the codes by which we live our sexual lives and conventional morality, Russell daringly sets out a new morality, shaped and influenced by dramatic changes in society such as the emancipation of women and the wide-spread use of contraceptives. From the origin of marriage to the influence of religion, Russell explores the changing role of marriage and codes of sexual ethics. (...) The influence of this great work has turned it into a worthy classic. (shrink)

Weakness of the Will gives an excellent historical survey of philosophers' puzzles about the possibility of deliberately taking the worse course. Plato, Aristotle, the Stoics, a selection of medieval philosophers, and more contemporary philosophers are explored to illustrate why and how they avoid discussing the problem.

First published in 1984. Routledge is an imprint of Taylor & Francis, an informa company.

Background The first COVID-19 wave started in February 2020 in France. The influx of patients requiring emergency care and high-level technicity led healthcare professionals to fear saturation of available care. In that context, the multidisciplinary Ethics- Support Cell (EST) was created to help medical teams consider the decisions that could potentially be sources of ethical dilemmas. Objectives The primary objective was to prospectively collect information on requests for EST assistance from 23 March to 9 May 2020. The secondary aim was (...) to describe the Cell’s functions during that period. Research design This observational, real-time study of requests for Cell consultations concerned ethical dilemmas arising during a public health crisis. The EST created a grid to collect relevant information (clinical, patient’s/designated representative’s preferences and ethical principles strained by the situation), thereby assuring that each EST asked the same questions, in the same order. Participants and research context Only our university hospital’s clinicians could request EST intervention. Ethical considerations The hospital Research Ethics Committee approved this study (no. CER-2020-107). The patient, his/her family, or designated representative was informed of this ethics consultation and most met with EST members, which enabled them to express their preferences and/or opposition. Findings/results 33 requests (patients’ mean age: 80.8 years; 29 had COVID-19: 24 with dyspnea, 30 with comorbidities). 17 Emergency Department solicitations concerned ICU admission, without reference to resource constraints; others addressed therapeutic proportionality dilemmas. Discussion Intervention-request motives concerned limited resources and treatment intensity. Management revolved around three axes: the treatment option most appropriate for the patient, the feasibility of implementation, and dignified care for the patient. Conclusions COVID-19 crisis forced hospitals to envisage prioritization of ICU access. Established decision-making criteria and protocols do not enable healthcare professionals to escape ethical dilemmas. That acknowledgement highlights ethical risks, enhances the added-value of nursing and encourages all players to be vigilant to pursue collective deliberations to achieve clear and transparent decisions. (shrink)

Huit conférences du philosophe prix Nobel, et une question : la philosophie peut-elle être une science? Pour assurer la validité de ses recherches, la philosophie doit s'appuyer sur une méthode, "quelque chose de parfaitement défini, susceptible de se ramasser en formules, et capable de fournir toute la connaissance scientifique objective qu'il est possible d'atteindre". Tel est l'objectif de ce recueil consacré aux notions de logique, d'infini, de connaissance du monde extérieur, et de liberté, qui comprend notamment une conférence devenue célèbre, (...) "L'essence de la philosophie : la logique", dont Wittgenstein, qui était l'un des disciples de Russell, s'inspirera pour écrire son Tractatus logico-philosophicus. (shrink)

The aim of this paper is to question the objectivist conception of photography by confronting it with the history – and epistemology – of the painted image. I suggest that the idea of photography as an objective testimony seems to rest upon a phenomenon already described by ancient rhetoric – enargeia, which Cicero latinized into evidentia. Thus the question is raised whether the objectivity of the photographic image is not the mere continuation of an old rhetorical and pictorial tradition about (...) the epistemic-rhetoric evidentia of testimony. Moreover, through the detailed analysis of two paintings by Jan Van Eyck – The Arnolfini Portrait and Léal Souvenir –, I argue that what guarantees an image’s objectivity to the point of its being accepted as evidence ultimately is not the non-subjective mechanical process or the automatic indexical device used to make the photographic image but the image’s built-in pledge of faithfulness which was at the heart of painters’ thoughts long before the invention of photography. (shrink)