Changing attitude toward high school composition

This item was digitized by the Internet Archive. Thesis (Ed.M.)--Boston Universityhttps://archive.org/details/changingattitude00bli

Wildlife Food Habits And Habitat Use On Revegetated Stripmine Land In Alaska

Thesis (Ph.D.) University of Alaska Fairbanks, 1984Food habits and habitat utilization of wildlife species on revegetated stripmine spoils in interior Alaska were studied from 1980 through 1982. Current reclamation techniques were beneficial for tundra voles, short-eared owls and marsh hawks. Caribou, Dall sheep, red fox, coyote, wolf, arctic ground squirrel, waterfowl, and various raptorial birds derived partial benefit from the reclaimed areas. The seeded grasses functioned as minor items in the diets of herbivores while reclaimed sites served as hunting areas for the various carnivores and raptors. Moose, showshoe hare, red-backed voles, willow ptarmigan and most nongame birds were adversely impacted by the reclaimed areas. Woody vegetation and its associated attributes such as cover and food were the essential habitat component missing from the reclaimed areas. Stripmining and reclamation procedures currently practiced in interior Alaska result in the formation of 'islands' of grassland interspersed throughout the natural habitat. The availability of undisturbed habitat adjacent to small sized, seeded areas, has made it possible for wildlife to take advantage of the reclaimed sites and still have sufficient amount of natural food and cover available with which to meet the nutritional and habitat needs of the animal. The detrimental effects of current reclamation procedures increase as the amounts of land disturbed by mining become very large. Present reclamation procedures create grasslands on disturbed sites. As the size of the disturbed area and subsequent areas of revegetation increases, the resulting loss of native forage and habitat will be very detrimental to the local wildlife. This adverse effect could be ameliorated if reseeded areas are interspersed with trees and shrubs. If recreating wildlife habitat is the major goal of reclamation, it is recommended that the creation of a diverse vegetative structure should be considered as important as the establishment of a ground cover

The Emotional Economy of Unemployment: A Re-Analysis of Testimony From a Sheppey Family, 1978-1983

This is the final version of the article. Available from SAGE Publications via the DOI in this record.Between May 1978 and December 1983, the sociologist Ray Pahl conducted seven extensive interviews with a couple from Sheppey that he called “Linda” and “Jim.” These not only informed a key chapter in Pahl’s classic book Divisions of Labour but also evolved into a uniquely intimate account of how a family used to “getting by” (though never “affluent”) coped with the hardships and indignities of long-term reliance on welfare benefits. Perhaps inevitably, fascinating aspects of Linda and Jim’s testimony were left unused in Divisions of Labour, primarily because they were marginal to Pahl’s principal aim of demonstrating how the state welfare system could trap a family in poverty. We deliberately retain the narrative, case study approach of Pahl’s treatment, but shift our focus to the strategies that Linda and Jim adopted to cope with the emotional and psychological challenges of life at the sharp end of the early 1980s recession. How they retained a strong orientation toward the future, how they resisted internalizing the stigmatization associated with welfare dependency in 1980s Britain, and how their determination to fight “the system” ultimately led them to make choices in harmony with the logic of the New Right’s free market agenda.The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: Jon Lawrence was supported by a Leverhulme Major Research Fellowship while conducting research for this article

Stability and Absence of Binding for Multi-Polaron Systems

We resolve several longstanding problems concerning the stability and the absence of multi-particle binding for N\geq 2 polarons. Fr\"ohlich's 1937 polaron model describes non-relativistic particles interacting with a scalar quantized field with coupling \sqrt\alpha, and with each other by Coulomb repulsion of strength U. We prove the following: (i) While there is a known thermodynamic instability for U<2\alpha, stability of matter does hold for U>2\alpha, that is, the ground state energy per particle has a finite limit as N\to\infty. (ii) There is no binding of any kind if U exceeds a critical value that depends on \alpha but not on N. The same results are shown to hold for the Pekar-Tomasevich model.Comment: 23 page

Ground state properties of multi-polaron systems

We summarize our recent results on the ground state energy of multi-polaron systems. In particular, we discuss stability and existence of the thermodynamic limit, and we discuss the absence of binding in the case of large Coulomb repulsion and the corresponding binding-unbinding transition. We also consider the Pekar-Tomasevich approximation to the ground state energy and we study radial symmetry of the ground state density.Comment: Contribution to the proceedings of ICMP12, Aalborg, Denmark, August 6--11, 2012; 8 page

Binding, Stability, and Non-binding of Multi-polaron Systems

The binding of polarons, or its absence, is an old and subtle topic. After defining the model we state some recent theorems of ours. First, the transition from many-body collapse to the existence of a thermodynamic limit for N polarons occurs precisely at U=2\alpha, where U is the electronic Coulomb repulsion and \alpha is the polaron coupling constant. Second, if U is large enough, there is no multi-polaron binding of any kind. We also discuss the Pekar-Tomasevich approximation to the ground state energy, which is valid for large \alpha. Finally, we derive exact results, not reported before, about the one-dimensional toy model introduced by E. P. Gross.Comment: 12 pages; contribution to the proceedings of the conference QMath 11 (Hradec Kralove, September 2010); clarification added after Theorem 4.

ADA to silicon transformations: the outline of a method

technical reportThis report explores the contention that a high-order language specification of a machine (such as an Ada program) can be methodically transformed into a hardware representation of that machine. One series of well-defined steps through which such transformations can take place is presented in this initial study

File Early, Then Free Ride: How Delaware Law (Mis)Shapes Shareholder Class Actions

Delaware courts have largely privatized enforcement of fiduciary duties in public corporations. In In re Fuqua Industries, Inc. Shareholder Litigation, Chancellor Chandler expressly acknowledged this judicial policy. He noted that Delaware courts implement it partly by allowing private attorneys, working on a contingent fee basis, to initiate and maintain derivative and class actions in the names of nominal shareholder plaintiffs. Attorneys are subject only to the relatively weak constraints that they must inform their clients and receive their consent before they file shareholder suits. Further, Delaware courts use cost and fee shifting mechanisms to economically incentivize those attorneys to initiate such suits. Chancellor Chandler also explained that Delaware courts have adopted this policy because they believe that the plaintiffs\u27 bar is capable of performing a valuable service on behalf of shareholders. Plaintiffs\u27 attorneys understand abstruse issues of corporate governance and fiduciary duties far better than do most shareholders. Consequently, they are uniquely qualified to identify situations in which principles of corporate governance have been violated or fiduciary duties have been breached and then to initiate lawsuits seeking corrective action