Note on two-dimensional nonlinear gauge theories

A two-dimensional nonlinear gauge theory that can be proposed for generalization to higher dimensions is derived by means of cohomological arguments.Comment: 12 pages, LaTeX 2.

The Threebrane Soliton of the M-Fivebrane

We discuss the supersymmetry algebra of the M theory fivebrane and obtain a new threebrane soliton preserving half of the six-dimensional supersymmetry. This solution is dimensionally reduced to various D-p-branes.Comment: 10 pages, phyzz

The supermembrane revisited

The M2-brane is studied from the perspective of superembeddings. We review the derivation of the M2-brane dynamics and the supergravity constraints from the standard superembedding constraint and we discuss explicitly the induced d=3, N=8 superconformal geometry on the worldvolume. We show that the gauged supermembrane, for a target space with a U(1) isometry, is the standard D2-brane in a type IIA supergravity background. In particular, the D2-brane action, complete with the Dirac-Born-Infeld term, arises from the gauged Wess-Zumino worldvolume 4-form via the brane action principle. The discussion is extended to the massive D2-brane considered as a gauged supermembrane in a massive D=11 superspace background. Type IIA supergeometry is derived using Kaluza-Klein techniques in superspace.Comment: Latex, 46 pages, clarifying remarks and references adde

A New Massive Type IIA Supergravity From Compactification

We consider the most general form for eleven dimensional supersymmetry compatible with on-shell superfields. This allows for the introduction of a conformal Spin(1,10) connection. In eleven dimensional Minkowski space this modification is trivial and can be removed by a field redefinition, however, upon compactification on S^1 it is possible to introduce a non-trivial `Wilson line'. The resulting ten dimensional supergravity has massive 1-form and 3-form potentials and a cosmological constant. This theory does not possess a supersymmetric eightbrane soliton but it does admit a supersymmetric non-static cosmological solution.Comment: 13 pages, phyzzx. The introduction is clarifed and a reference adde

Pathways to One Water: A guide for institutional innovation

The primary audiences for this guide are urban water professionals and local government leaders. However, this guide is also targeted at urban planners, academics, developers, architects, regulators, funding agencies and nongovernmental organizations, as well as the building and infrastructure trades. All of these groups will need to be engaged to truly achieve a One Water outcome. The guide includes: ■ A description of how cities are moving into a new generation of infrastructure ■ An introduction to One Water and a summary of the key institutional challenges in moving to this approach ■ Key elements of institutions that have embraced a One Water approach ■ Case study snapshots of innovative initiatives taken by organizations ■ Examples of institutional change at the regional, city and utility level ■ Finally, how an individual, an organization or an association might take action or influence change toward a One Water approac

Path Integral Approach to Fermionic Vacuum Energy in Non-parallel D1-Branes

The fermionic one loop vacuum energy of the superstring theory in a system of non-parallel D1-branes is derived by applying the path integral formalism.Comment: 7 pages, no figur

BPS Solitons in M5-Brane Worldvolume Theory with Constant Three-Form Field

We study BPS solutions for a self-dual string and a neutral string in M5-brane worldvolume theory with constant three-form field. We further generalize such solitons to superpose with a calibrated surface. We also study a traveling wave on a calibrated surface in the constant three-form field background.Comment: 12 pages, LaTeX, minor correction, added referenc

What's getting in the way of a One Water approach to water services planning and management?

A range of factors prevents the development of institutional changes that would allow a shift to "One Water" systems. Foremost of these is the inertia associated with the dominant paradigm of centralised and siloed systems. This, together with the complex structure of regulations that currently exist for water supply, wastewater and storm water management, poses significant obstacles to a fully integrated approach. The regulatory patchwork environment, with overlapping responsibilities and jurisdictions, particularly with respect to the need for management of both public health and environmental risks, currently hinders system integration. This paper aims to understand what institutional challenges organisations engaged in the One Water approach have faced