Electromagnetism with Magnetic Charge and Two Photons

The Dirac approach to include magnetic charge in Maxwell's equations places the magnetic charge at the end of a string on which the the fields of the theory develop a singularity. In this paper an alternative formulation of classical electromagnetism with magnetic and electric charge is given by introducing a second pseudo four-vector potential, C_mu, in addition to the usual four- vector potential, A_mu. This avoids the use of singular, non-local variables (i.e. Dirac strings) in electrodynamics with magnetic charge, and it makes the treatment of electric and magentic charge more symmetric, since both charges are now gauge charges.Comment: 20 page, 0 figures. Published in AJP. Proposes the possiblity of an additional U(1) magnetic, gauge boso

The lure of texts and the discipline of praxis: cross-cultural history in a post-empirical world

The main aim of this paper is to tell stories about interactions between European voyagers and Aboriginal people in New Holland (mainland Australia) and Van Diemen's Land (Tasmania) at the end of the eighteenth century

Neural and Environmental Modulation of Motivation: What's the Moral Difference?

Interventions that modify a person’s motivations through chemically or physically influencing the brain seem morally objectionable, at least when they are performed nonconsensually. This chapter raises a puzzle for attempts to explain their objectionability. It first seeks to show that the objectionability of such interventions must be explained at least in part by reference to the sort of mental interference that they involve. It then argues that it is difficult to furnish an explanation of this sort. The difficulty is that these interventions seem no more objectionable, in terms of the kind of mental interference that they involve, than certain forms of environmental influence that many would regard as morally innocuous. The argument proceeds by comparing a particular neurointervention with a comparable environmental intervention. The author argues, first, that the two dominant explanations for the objectionability of the neurointervention apply equally to the environmental intervention, and second, that the descriptive difference between the environmental intervention and the neurointervention that most plausibly grounds the putative moral difference in fact fails to do so. The author concludes by presenting a trilemma that falls out of the argument

Antitrust in Food and Farming Under President Trump

Corporate powers are proposing mega mergers in almost every sector of agriculture. This essay explores how President Trump can keep his campaign promises to protect rural voters by strengthening the weakening enforcement of antitrust doctrines; specifically through the Grain Inspection, Packers and Stockyards Administration (GIPSA) and reinstating the Country of Origin Labeling (CoOL) of meat products

Fundamentalism and terrorism: The contemporary religious challenge

For nearly a century the term ‘fundamentalism’ has referred primarily to a set of specific Christian beliefs and an allied ultra-conservative attitude. However, usage of the term has broadened: ‘fundamentalism’, as a term indicating the position of a ‘closed mind’ coupled with a negative – even hostile – stance toward the status quo, has migrated into political discourse and the wider religious realm. Fundamentalism broadly names a religio-political perspective found in most, if not all, major religions. Most disturbingly, it is now associated with variant forms of religious extremism and thus religiously-oriented terrorism. And it is Islamic modalities of terrorism that, rightly or wrongly, have come to take centre-stage in current world affairs. This lecture will argue that the religious fundamentalism with which Islamist extremism is associated follows an identifiable paradigm that has wider applicability. Religious ‘fundamentalism’ denotes, among other things, a paradigm that paves the way from the relative harmlessness of an idiosyncratic and dogmatic belief system, to the harmful reality of religiously driven and fanatically followed pathways to terrorist activity. The lecture will attempt to describe and analyse this paradigm with reference to contemporary concerns

Enemy at the gate? Models of response to contemporary religious plurality

Ours is age of plurality in all things. Yet, plurality has always been the case: difference, diversity, multiplicity – that which tends to disconnectedness in whatever sphere of human life – has ever been the lot of humanity. Religion is no exception. Yet while most religions would hold that unity – the uniformity and coherence suggestive of an inherent connectedness – is a sine qua non, the lived reality of religious people everywhere is often the context of, and contention with, a disconnectedness which is consequent upon difference of viewpoint, variety of experience, clash of interpretation, and competing claims for religious allegiance and identity. This can be the case both within any one major religious tradition as well as between them. Given the ubiquitous nature of religion and the pressing need for improved interreligious relations in many parts of the world, the question of how the fact of religious plurality is apprehended from within the religions themselves is critical. Naturally every religion proffers its own hermeneutic of the religiously ‘other’. Typically, this has included variations on the themes of exclusivity and inclusiveness