Non-abelian self-duality from self-interaction

The non-abelian self-dual action in three dimensions is derived using the self-interaction mechanism.Comment: Latex, 7 page

A New Approach to Axial Vector Model Calculations II

We further develop the new approach, proposed in part I (hep-th/9807072), to computing the heat kernel associated with a Fermion coupled to vector and axial vector fields. We first use the path integral representation obtained for the heat kernel trace in a vector-axialvector background to derive a Bern-Kosower type master formula for the one-loop amplitude with $M$ vectors and $N$ axialvectors, valid in any even spacetime dimension. For the massless case we then generalize this approach to the full off-diagonal heat kernel. In the D=4 case the SO(4) structure of the theory can be broken down to $SU(2) \times SU(2)$ by use of the 't Hooft symbols. Various techniques for explicitly evaluating the spin part of the path integral are developed and compared. We also extend the method to external fermions, and to the inclusion of isospin. On the field theory side, we obtain an extension of the second order formalism for fermion QED to an abelian vector-axialvector theory.Comment: Sequel to hep-th/9807072, references added, some clarifications and corrections, 29 pages, RevTex, 8 diagrams using epsfig.st

TRIO Programs and Beyond: Integrating Student-Centric Programs and Strategies

The Federal TRIO Programs are Federal outreach and student services programs designed to identify and provide services for individuals from disadvantaged backgrounds. TRIO Student Support Services (SSS) programs provide opportunities for academic development, assist students with basic college requirements, and motivate students toward the successful completion of their postsecondary education. Using a holistic approach to intrusive advising, SSS programs take participants from students to scholars to professionals, offering first-generation, income-eligible, and disabled students individualized pathways to success. This presentation explains the objectives of SSS programs, offering best practices that demonstrate how the program increases its cohorts\u27 retention, academic standing, and graduation rates. Collaboration with student affairs and academic affairs become key. It then gives higher education institutions without TRIO programs strategies to include and/or strengthen proactive intervention for students who need it most--first-generation college students and underrepresented students of color or of lower socioeconomic status

A normal coordinate expansion of the gauge potential

In this pedagogical note, I present a method for constructing a fully covariant normal coordinate expansion of the gauge potential on a curved space-time manifold. Although the content of this paper is elementary, the results may prove useful in some applications and have not, to the best of my knowledge, been discussed in the literature

Treatment of head and neck cancer with photodynamic therapy: results after one year

Photodynamic therapy (PDT) is a new and promising treatment modality for the treatment of malignant disease. This paper reports the preliminary experience of our group in the use of this therapy for the treatment of tumours arising in the head and neck. The majority of treatments in these cases have used a second generation systemic photosensitizer, meta-tetrahydroxyphenylchlorin (m-THPC). Two other cases were treated with either Photofrin 2 (a first generation systemic sensitizer) or with the topical photosensitizer, delta-aminolaevulinic acid (delta-ALA).The initial results have been encouraging with good clinical responses evident in patients presenting with a variety of differing tumour types. We feel there is now sufficient evidence of the efficacy of this treatment to warrant a multicentre prospective study into the treatment of early head and neck cancer with PDT

We need more silage—1. looking backward

If we are to achieve greater production in the dairying sphere— and the urgent need for such increases has been heavily emphasised in recent years—we must have more and better conserved fodder. Dairying is difficult in Western Australia, for we usually have only three to four months in which green feed is plentiful and this is followed by a prolonged lean period only alleviated by summer crops and irrigated pastures in very restricted areas

We need more silage—2. principles and processes involved

One of the reasons why silage-making is not as popular as it should be, is that few farmers have a clear understanding of the principles and processes involved in the conversion of green fodder into succulent silage. Without such understanding it is difficult to make good silage economically, so it should be worth while to spend a little time studying the theory of silage-making in order that a product of the highest possible feeding value can be obtained and waste kept to a minimum

We need more silage—3. nutritive qualities

The chief aim in making silage is to conserve green immature herbage of fodder crops in a condition most closely resembling that of the crop in its natural state. It is essentially a succulent food, and the succulence is one of its greatest attributes for it makes silage extremely palatable to stock at times when fresh green herbage is not available. In addition to its palatability, well-made silage contains a higher proportion of vitamin A than is found in hay or other dried conserved fodders, and this makes it particularly valuable for the promotion of health and fertility