When Thomas Jefferson placed 'the pursuit of happiness' along with life and liberty in The Declaration of Independence he was most likely referring to Aristotle's concept of happiness, or eudaimonia. Eudaimonia is not about good feelings but rather the fulfilment of human potentials. Fulfilment is made possible by virtue; the moderation of desire and emotion by reason. The Psychology of Happiness was the first book to bring together psychological, philosophical, and physiological theory and research in support of Aristotle's view. It (...) examines the similarity between Aristotle's concept of virtue and modern cognitive theories of emotion. It discusses the discovery of human potentials, the development of virtue and its neurological basis, the mistaken idea that fulfilment is selfish, and several other issues related to the pursuit of a good human life. (shrink)

In this paper I have not, of course, presented all the embryological data that can be collected from the Talmudic and Midrashic literature. More details can be found in Julius Preuss' classical work on biblical and talmudic medicine, now available in Fred Rosner's English translation and in a French M.D. thesis by Martine Michel.75 I also did not present any data on teratology, and did not deal with the very rich Jewish mystical lore, the Cabbala. But a few comments are (...) in order here about the material on embryology.There are very few original ideas in the Talmudic corpus on embryology, but it is obvious that the Sages were well aware of the Greek and Roman theories on embryology.The fact that the Talmud is a compilation that was built up slowly, during several centuries, explains why the information recorded in it cannot be ascribed solely to one school of thought or one clear-cut influence.When a definite problem was difficult to solve because there were many different theories about it, the Sages based their opinion on a famous experiment that seemed to offer guarantees of validity. This was the case with the controversial problem of the formation of the embryo and its sexual differentiation, where the Sages made use of an experiment allegedly initiated by Cleopatra.The Sages were ready to discuss scientific problems with non-Jewish scholars and even to accept their arguments. This was the case with the important topic of the time of the entry of the soul into the embryo. But the legal conclusions drawn from the Sages' opinion were not consistent with those declared by Churth Fathers such as Tertullian. Embryotomy, for instance, was permitted by Jewish law.Wide interest, scholarly discussions, suggestive descriptions and readiness to inquire and to obtain detailed information characterized the Talmudic discussions of embryology.In conclusion, I quote a Talmudic text that reviews the whole process of embryological development through the sequence of prayers of a faithful Jew who learns that his wife is expecting a baby.The first three days, [he should pray to the Lord] that the seed should not putrefy.From the third to the fortieth day: that the child should be a male.From the fortieth day to the third month: that there should not occur any superfetation, which could lead the first embryo to be a fetus compressus.From the third to the sixth month: that an abortion should not occur.From the sixth to the ninth month: that the birth should be without problems.76. (shrink)

I Know There is a God explores the creation of the world and the role of the Designer God. The book refutes the arguments of neo-Darwinism and Punctuated Equilibrium; expounds upon Paley's imagery of the watch as evidence that both the watch and the world need a maker; and seeks to answer Nietzsche's question of whether or not the watchmaker is still alive.

Geckos have gained ecological access to novel microhabitats by exploiting intermolecular van der Waals forces, which allow them to climb smooth vertical surfaces. They use microscopic surface‐based phenomena to thrive in a macroscopic mass‐ and kinetic energy‐based world. Here we detail this as a premier example of integrative biology, spanning seven orders of magnitude and a lot of interesting biology. Emergent properties arising from molecular adhesion include several adaptive radiations that have produced a great diversity of geckos worldwide. BioEssays 27:647–652, (...) 2005. © 2005 Wiley Periodicals, Inc. (shrink)

Combinatorial operations on sets are almost never well defined on Turing degrees, a fact so obvious that counterexamples are worth exhibiting. The case we focus on is the symmetric-difference operator; there are pairs of degrees for which the symmetric-difference operation is well defined. Some examples can be extracted from the literature, e.g. from the existence of nonzero degrees with strong minimal covers. We focus on the case of incomparable r.e. degrees for which the symmetric-difference operation is well defined.

Written by researchers in their field, this book is about the skills beyond basic word recognition that are necessary for the processing and comprehension of spoken and written language. It offers topics such as: language and text analysis; cognitive processing and comprehension; development of literacy; literacy and schooling; and more.

Several stages can be identified in Darwin's effort to formulate natural selection. The first stage corresponded, roughly speaking, to the period up to 1844. It was characterized by Darwin's attempt to base his model of geographic speciation on an individualistic dynamics, with species understood as reproductively isolated populations. Toward the end of this period, Darwin's ignorance of the laws of variations and heredity led him to adopt varieties and species as the units of variations. This had the extremely important effect (...) of stimulating him to consider the process of speciation as involving populations. At the end of this period, Darwin also began to regard adaptation as being exclusively toward places in the economy of nature. Thus he faced the problem of integrating the process of natural selection with the process of speciation. Individual variants were the units that fueled the first process, whereas varieties produced new speices. There was no link between adaptation and speciation, except whatever could be supplied by a quasi-historical, developmental idea of optimizing the amount of life.In the second stage, I contend, Darwin's reading of Milne-Edwards crystallized his previous insights into a coherent whole. Milne-Edwards' comments on the advantage of functional specialization could readily be understood in terms of the advantage accruing to the individual, relative to other members of its species, from occupying a different niche. Milne-Edwards' discussion of the division of labor suggested that organisms which moved into unoccupied niches would enjoy reduced competition, and hence a differential advantage in survival and reproduction; thus they would induce the species to do likewise. Rather than base his explanation on an analogy with the artificial economy, Darwin chose the principle of the optimalization of the amount of life per unit area as the overall explanatory principle. The difficulties connected with integrating different levels of description were therefore circumvented, insofar as the problem of diversity and speciation was concerned. Although natural selection considered individuals as the units of selection, and the units of variations were varieties and species, the dynamics of the process understood in terms of natural selection, competition, division of labor and niches could give a plausible account of how individual advantage could be transferred to the species, and how diversity resulted from this mechanism. The problem of the different levels of descriptions was confined to how the properties of variations in individuals (in particular, the frequency of variations and their transmission) were responsible for the assumed variability characteristic of varieties and species. This problem Darwin never solved.A third stage occurred in 1858 with the amalgamation of the tree-of-life vizualization of the process of speciation. Speciation, geographic distribution, and systematics were all then embedded in a conceptual matrix with vast explanatory powers. (shrink)

ArgumentJ. Robert Oppenheimer was a complex person. His work in physics during the 1930s, at Los Alamos during the 1940s, and as governmental advisor in the immediate postwar period, gave him a deep sense of connection with communities that had distinctive purposes. But he found it difficult to conceive an overall creative vision for himself or to devise a compelling objective for the community he belonged to if one had not been formulated at the time he assumed its leadership. I (...) analyze the reasons for his successes: the vision and demands of physics during the 1930s, the make-up of Los Alamos, and the challenges of the postwar atomic world. In each of these enterprises he assumed a distinctive role and came to represent a distinctive persona – but he could not integrate his activities into a coherent whole that might be a model for the intellectual in the new world he had helped to shape. (shrink)

Contingencies of the early nuclear arms race Content Type Journal Article Pages 1-23 DOI 10.1007/s11016-010-9495-z Authors S. S. Schweber, Department of the History of Science, Harvard University, Science Center 371, Cambridge, MA 02138, USA Alex Wellerstein, Department of the History of Science, Harvard University, Science Center 371, Cambridge, MA 02138, USA Ethan Pollock, Department of History, Box N, Brown University, Providence, RI 02912, USA Barton J. Bernstein, History Department, Building 200, Stanford University, Stanford, CA 94305-2024, USA Michael D. Gordin, (...) History Department, 305 Dickinson Hall, Princeton University, Princeton, NJ 08544, USA Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796. (shrink)

Michael Eckert has written a remarkable biography of Arnold Sommerfeld , the “off-scale” theoretical physicist who made his Seminar at the University of Munich the outstanding school of theoretical physics of the first third of the twentieth century. Sommerfeld was the teacher and mentor of a large number of exceptional theoretical physicists who studied with him either as doctoral or post-doctoral studentsSee the Wikipedia entry for Arnold Sommerfeld for a complete listing of all his students by category.; and among these, (...) Peter Debye, Max von Laue, Wolfgang Pauli, Werner Heisenberg, Linus Pauling and Hans Bethe became Nobel laureates.In his prologue, Eckert noted that a scientific biography should serve not only as a vehicle to describe and explain scientific processes in a social and cultural context, but must also present “the ambitions, passions, and moral choices of a life in science”. Eckert was able to meet these demands by drawing on Sommerfeld’s personal and .. (shrink)

ArgumentThe paper is an exploration of the interactions between Einstein and Oppenheimer. It highlights the sharp differences in Einstein's and Oppenheimer's approach to physics, in their presentation of self as iconic figures, and in their relation to the communities they considered themselves part of. To understand their differing approaches to physics it briefly reviews the kinds of unifications that took place in physics during the first two-thirds of the twentieth century and points to the 1961 MIT centennial celebration to demonstrate (...) the potency of Einstein's vision that there might be a fundamental theory from which all known theories could be derived. It also briefly reviews various aspects of the development of theoretical physics and of general relativity in the first two-thirds of the twentieth century, to better understand the context of the sharp, negative remarks that Oppenheimer made about Einstein and about his theory of general relativity in 1965 on the occasion of the tenth anniversary of Einstein's death. To answer the question: “Why the antagonism on Oppenheimer's part?” it looks at Oppenheimer's and Einstein's relation to their Jewish roots, their stance regarding nationalism, and their philosophical commitments. (shrink)

The four authors present their speculations about the future developments of mathematical logic in the twenty-first century. The areas of recursion theory, proof theory and logic for computer science, model theory, and set theory are discussed independently.

This book explores the current state of Corporate Social Responsibility (CSR) in 24 European nations, examining the state of the development and practice of CSR and sustainability for organizations in these countries. The common denominator for all of the book's 25 chapters is a management perspective rather than an ethical discourse. The book therefore represents a comprehensive survey of initiatives and activities in the field of CSR and provides a wealth of complete cases and examples for different approaches to sustainable (...) and responsible management practice. The book also reviews the relevant political and governmental guidelines and frameworks for organizations, both on a national and a European level. Europe has taken a leading role in the promotion and implementation of CSR. This book showcases how, through CSR, enterprises can significantly contribute to achieving the European Union's treaty objectives of sustainable development and a highly competitive social market economy. (shrink)