© 2017. The American Astronomical Society. All rights reserved.We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J and H bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au orbit with a 68% confidence interval between 14 and 28 au, an eccentricity (...) of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119°with a 68% confidence interval between 114°and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ±1.5 spectral type with a corresponding temperature of K. Photometry of the companion yields a luminosity of log=2.88 ± 0.07 dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ±1 to 95 ±4 M Jup. These results are consistent with previous measurements of the object. (shrink)

The thesis of this book is that Herbert Marcuse is "indispensable to the theory and practice of the New Left." The one-dimensional quality of contemporary everyday life is to be disrupted by a critical theory of society based upon the works of Karl Marx as interpreted and brought to bear upon the 20th Century. Hence, this collection of six New Left studies on Herbert Marcuse is called Critical Interruptions. The contributors are former students of Marcuse and all are younger than (...) thirty-five. The work is dedicated to Theodor W. Adorno and Ho Chi-Minh. The book is poorly edited; not only does the heavy Marcusean terminology make intelligibility slow; but poor rhetoric, grammar and punctuation also add to the slowness of the pace. The content of the essays, however, is uniformly very worthwhile and the book deserves a careful reading. The Marcuse Festschrift of 1967, edited by Kurt H. Wolff and Barrington Moore, Jr., entitled The Critical Spirit, was a collection of essays "in honor of Herbert Marcuse." This 1970 book, Critical Interruptions, is addressed to the exposition, up-dating and critique of Marcuse himself. Therefore, this present work is of immediate help to all readers and students of Marcuse. Paul Breines, the editor, wrote the first essay, "From Guru to Spectre: Marcuse and the Implosion of the Movement"; this is a history of Marcuse's relation to the New Left over the past few years. The second essay, "Individuation as Praxis," by Shierry M. Weber, is an incisive and insightful critique of the New Left while studying the meaning of praxis, the personal dimensions of individuality and exploring realistic alternatives for a viable counter culture. "Reversals and Lost Meanings" by Russell Jacoby is a short attempt at dialectics. William Leiss' study, "The Critical Theory of Society: Present Situation and Future Tasks," is a fine review of the major representatives of the Frankfurt School of social philosophers. "On Sexuality and Politics in the Work of Herbert Marcuse" by John David Ober, explains the continuity and development in Marcuse's thought on sexuality from Eros and Civilization through One-Dimensional Man. Finally, the last essay, "One-Dimensionality: The Universal Semiotic of Technological Experience" by Jeremy J. Shapiro is an extended commentary on Marcuse's most recent thought as applied to the advancing technology of the age. The editor openly disclaims any inner unity to the six essays. The studies, however, reveal that at least these six students of Marcuse from the New Left understand the Master very well and are able to extend his thought successfully to key contemporary issues. At the end, there is a greater unity to the book than the editor anticipated.--E. W. R. (shrink)

Effort is then well-nigh indescribable. Not wholly so, else it would be meaningless. Description is a matter of degree: who can fully describe red or wet? To be sure, description comes down in the end to the pointing to certain given qualities or relations or events which are just there. All connotation rests on denotation, though it may be something more. But the unique positive thing about effort is its originality; to which indeed we can point, since every one experiences (...) it in himself. Yet common to all men though it is, it is so intangible! more spirit than body, more force than substance. We should perhaps best call it not a datum but a factum, or better still, a fiat, a doing rather than a deed, yet not merely a becoming, for we see things coming to be, we hear a melody progressing and touch a moving object. Effort, dynamic as it is, is not just the process, rather it is--we must re-iterate--the start, the initiative of the process. Nor is the experience of it properly called mystical. Even if mystical experience were indescribable, as has been wrongly alleged, these would be two quite different indescribables, the one receptive, the other originative. All we can say perhaps is that effort is analogous to the push that starts the ball rolling, not the motion of the ball, not the acceleration, but the enforcement of these. Its witness does not lie in its value as explanation of the motion; the witness is direct, the immediate experience which every man has. It seems to be no object of scientific investigation in the technical sense. It cannot be measured by itself, as acceleration and motion are measured. That is why physics has abandoned the old notion of force, the physical analogue of effort, replacing it by mass-acceleration. That is why the rationalists in modern philosophy look askance at this direct experience of man, so intangible that we can draw from it no logical implications. For it has no structure. Its characteristic is not clearness nor distinctness. We might be tempted to say it is like a point in space, too small to be envisaged, yet not a zero; but it is more like a dot or spark, so small as to be just seen, so small as to have no visible spread, no content that we can analyze to draw out rational consequences connecting it with other things. Here too we see why the contemplative thinker seldom believes in free choice, which the natural man naturally accepts. Free choice is the kind of thing that might well belong to this experience; free choice is origination. Not necessarily that all effort is freely made. The baby exercises no free choice when he sucks hard at the nipple, nor the adult when he wrestles for his life with an enemy. But they want, need, desire; that is the point. Desire--that is the essence of effort. Desire has the originative quality; it comes as it were out of one's self and from no other source, it is what we want, our self insisting on its own. But the business is so deep within that it is easily overlooked, or deliberately excluded from the gaze, and without a qualm. We might say it is too near to be noticed, or too deep down to obtrude itself, as the water in the well is easy to see, but not the spring at the bottom of the well. Effort disappears from the scene when the thinker is calmly gazing; but when he acts it is felt, and strongly felt. It is in fact the very essence of the self, the well-spring of its worth and its growth. A man is what he does. His worth lies in what he makes. All that he is responsible for, all that he earns, is credited with, or guilty of, comes from this innermost source. So thinks the practical man, so we all believe when we are conducting our lives in intercourse with one another and with nature. But for the contemplative attitude there is here too little of clear articulation, of object-matter for analysis; no use can be made of it in a deductive system. So the system-builders discard it. (shrink)

This paper considers the relationship between G. H. von Wright's solution to the paradoxes of confirmation and his "Principal Theorem of Confirmation". The former utilizes the order of our knowledge of the qualities of confirming instances of an hypothesis; the latter states the way in which an instance contributes to the probability of an hypothesis. It is shown that these two, as stated by von Wright, are logically incompatible. Then the most thorough possible emendation of the paradoxes solution is considered, (...) and it is shown that this still prohibits use of the "Principal Theorem" to confirm hypotheses stating necessary causal conditions, and to confirm by deliberate experiment hypotheses stating sufficient causal conditions. It is concluded that any solution of the paradoxes must rest solely upon the relation of the data to the hypothesis involved. (shrink)

Common eigenfunctions of nontrivial projectors of x and p are constructed.

L'A. soutient, contre Germain Grisez, Joseph Boyle, John Finnis et William May, que le contrôle naturel des naissances pratiqué avec une intention mauvaise n'est pas contraception. Il montre que les auteurs identifient de façon incorrecte la fin prochaine de la contraception comme choix qu'il n'y ait pas d'enfant, alors que la fin prochaine véritable est d'empêcher un enfant de venir au monde . Ainsi donc, puisque en NFP un couple ne cherche pas à empêcher la venue au monde d'un enfant, (...) NFP n'implique pas d'action contraceptive. L'A. soutient aussi qu'identifier la fin prochaine comme choix qu'il n'y ait pas d'enfant ne spécifie pas de façon adéquate une classe homogène d'actes objectifs, bien que cela spécifie une classe homogène d'actes moraux. (shrink)

The recent discussions about alternative sources of human embryonic stem cells , while stirring new interest in the developmental potential of the various abnormal embryos or constructs proposed as such sources, also raise questions about the potential of the derived embryonic stem cells. The data on the developmental potential of embryonic stem cells that seem relevant for ethical considerations and aspects of patentability are discussed. Particular attention is paid to the meaning of “totipotency, omnipotency and pluripotency” as illustrated by a (...) comparison of the developmental potential of three-dimensional clusters of blastomeres , embryonic stem cells, somatic or stem cells or other somatic cells. This paper focuses on embryoid bodies and on direct cloning by tetraploid complementation. Usage and patenting of these cells cannot be considered to be ethically sound as long as totipotency and tetraploid complementability of embryonic stem cells are not excluded for the specific cell line in question. Testing this poses an ethical problem in itself and needs to be discussed in the future. (shrink)

For two hundred years, Americans have believed that they have an obligation to improve the lot of humanity, a belief that has consistently shaped U.S. foreign policy. Yet within this consensus, there are two competing schools of thought: the "exemplarist" school (Brands' term) which holds that what America chiefly owes the world is the benign example of a well-functioning democracy, and the "vindicationist" school which argues that force must sometimes supplement a good example. In this book, H.W. Brands traces the (...) evolution of these two schools as they emerged in the thinking and writing of the most important public thinkers of the past two centuries. (shrink)

In One Priest argues for the contradictoriness of Unity. The argument is that the unity of complex things is contradictory. It is contradictory that there are complex wholes composed of many parts. But there are. Thus, the explanation of unity has to be a contradictory entity, a gluon, which both is and is not an object. The book then develops and utilises a theory of gluons. The argument for the contradictoriness of Unity is crucial; without it there is no motivation (...) for the theory of gluons. It fails. It does so because ‘because’ is a sentential connective. So what follows it must be a sentence, not a list. So Priest is wrong to say that in a complex whole there must be something, an entity, which binds the parts together. (shrink)