Few-body approaches to one-dimensional many-body systems

This thesis presents results regarding one dimensional many-body quantum systems, obtained by considering the few-body physics of their constituent particles, and through use of traditional quantum mechanical techniques such as scattering theory and the variational principle. Choosing a perspective from which the connection between the microscopic behaviour of the systems’ constituents and its macroscopic properties is apparent, we investigate two one-dimensional many-body systems: a flat-banded optical lattice and a fermionic Luttinger liquid. Our choice of approach allows us to give a transparent description of the low-energy physics of both systems. For the former, we find that the low-energy eigenstates may be written down directly in terms of position space creation operators, and that they admit a simple and intuitive interpretation in terms of the position space behaviour of the atoms occupying the lattice. For the latter, we employ few-body scattering theory to investigate a long-held but (until now) untested belief about the parameters appearing in Luttinger’s model, a general effective low-energy description of one-dimensional quantum systems. We find this interpretation to be untenable, and give arguments as to how the parameters should correctly be regarded

The Sea Chart: An Illustrated History ofNautical Maps and Navigational Charts

Only on occasion will an author and publisher produce a work of remarkable beauty and excellence. John Blake’s il- lustrated history of nautical maps and navigational charts, now available in paperback, is one such delight. Commander Blake is a former Royal Navy officer and a fellow of the Royal Institute of Navigation. He not only knows what sea charts are about but has had privileged access to the treasure trove of British charting housed in the Hydrographic Office, which in journal- istic terms is a veritable scoop

Biological Assessments of Six Selected Fishes, Amphibians, and Mussels in Illinois

ID: 8758; issued November 1, 1996INHS Technical Report prepared for Illinois Department of Natural Resources, Division of Natural Heritag

Industrial life in a north Indian village

Thesis (M.A.)--Boston Universit

Fichte's theory of free will

Fichte’s account of free will is at the heart of his philosophy. However, there exists no full-length attempt to come to an understanding of what Fichte’s account is, and what it implies. I will therefore present Fichte’s views on freedom as they appear in his major work, the 1798 System of Ethics, supported by a variety of other important texts. I will give an exegesis of Fichte’s arguments, trying primarily to display the arguments clearly, but also offering some reconstructive remarks and defences of Fichte’s views against various challenges. I then move on to think about issues connected with free will, mainly the issues of how evil actions are possible, the connections between free will and time, and the causation at play in free will. I conclude that Fichte has a coherent account of strong libertarian freedom, that has significant relation to his views not only on self-consciousness but also on the realm of nature, as well as God

A Study of Twenty-Three County 4-H Council Organizations In Arkansas

Four-H Club work is that part of the Agricultural Extension Service program which serves rural youth. 1 Young people between the ages of 10 and 21, in a community or school, organized themselves into a 4-H Club with their own officers, adult leaders, and local program. The primary purpose of 4-H Club work is to develop in boys and girls leadership, initiative, citizenship, and character, and to teach them certain subject matter demonstrations in several phases of farming, homemaking, and related fields. They raise livestock, grow crops, make clothing, learn to cook, improve their personalities, and do many other things through their demonstrations. They have group activities such as camps, exhibits, tours, fairs, hikes, rallies, achievement banquets, and social meetings as a part of their club program. Similar activities conducted on a county basis are planned by county A-H councils. Members learn to cooperate by working and playing together. The county Extension agents help to organize clubs and supervise their activities. Young people join the club voluntary and they should have a desire to belong to a club. How well the club succeeds depends on many factors, some of which are beyond the members\u27 control. Parents, the adult leader, teachers, and county Extension agents may contribute much to the success of 4-H Club work. Four-H Club work is a specialized educational enterprise for rural youth. As such, it shares in the objectives common to all educational institutions and movements in its concern with the development of individual abilities and capacities for learning. Intellectual and moral character, qualities of effective citizenship, and the like—all having a definite relationship to the development of the heart H. Its distinctive educational objectives are: 1. To help rural boys and girls develop desirable ideals and standards for farming, homemaking, community life, and citizenship, and a sense of responsibility for their attainment. 2. To give rural boys and girls technical instructions in farming and homemaking, that they may acquire skill and understanding in these fields and a clearer vision of agriculture as a basic industry, and of homemaking as a worthy occupation. 3. To provide rural boys and girls an opportunity to learn by doing through conducting certain farm and home enterprises, and demonstrating to others what they have learned. 4. To instill in the minds of rural boys and girls an intelligent understanding and appreciation of nature and of their environment. 5. To teach rural boys and girls the value of research, and to develop in them a scientific attitude toward the problems of the farm and the home. 6. To train rural boys and girls in cooperative action, that they may increase their accomplishments, and, through associated efforts, may better assist in solving rural problems. 7. To develop in rural boys and girls habits of healthful living, to provide them with information and direction in the intelligent use of leisure, and to arouse in them worthy ambitions and a desire to continue to learn, that they may live fuller and richer lives. 8. To demonstrate to rural boys and girls methods designed to improve practices in agriculture and homemaking, to the end that farm incomes may be increased, standards of living improved, and the satisfaction of farm life enhanced

The Theological Philosophy of William Temple: A Desire Argument and a Compassionate Theodicy

In this paper, I will investigate the early work of William Temple (1881–1944). My contention is that Temple’s systematic philosophy contains resources for an interesting variant of a desire argument for God’s existence and for the truth of Christianity. This desire argument moves from claims about the nature of human reason to the conditions for its satisfaction and how that satisfaction might be achieved. In constructing this argument, Temple confronts the problem of evil, and so I will also outline his response to the problem here. Temple is often overlooked in histories of philosophy, though he was conversant with philosophical classics, including Plato, Aristotle, Kant, Hegel, and Lotze, and, to list a few of the contemporaries or near-contemporaries: Balfour, Haldane, F. H. Bradley, A. C. Bradley, Moore, Bosanquet, Joachim, and Croce. He also acknowledges, in the preface to his main philosophical work Mens Creatrix, a special debt to Bergson, but also signals distance from him in the same place. Temple presents an interesting case of a philosopher and theologian (most of his books are a mixture of the two, some being more predominantly one or the other) because of his commitment to philosophical system in the midst of early analytic philosophy

Martial\u27s and Juvenal\u27s attitudes toward women

The thesis offers a comparison between the views of Martial and Juvenal toward women based on selected Epigrams of the former and Satire VI of the latter. Such a comparison allows the reader to place in perspective the attitudes of both authors in regard to the fairer sex and reveals at least a portion of the psychological inclination of both writers