10,402 research outputs found

    Circulating Subbeam Systems and the Physics of Pulsar Emission

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    The purpose of this paper is to suggest how detailed single-pulse observations of ``slow'' radio pulsars may be utilized to construct an empirical model for their emission. It links the observational synthesis developed in a series of papers by Rankin starting in the 1980s to the more recent empirical feedback model of Wright (2003a) by regarding the entire pulsar magnetosphere as a non-steady, non-linear interactive system with a natural built-in delay. It is argued that the enhanced role of the outer gap in such a system indicates an evolutionary link to younger pulsars, in which this region is thought to be highly active, and that pulsar magnetospheres should no longer be seen as being ``driven'' by events on the neutron star's polar cap, but as having more in common with planetary magnetospheres and auroral phenomena.Comment: 15 pages, 3 figure

    An Analytic Comparative Study of Certain Biology Textbooks Used At Secondary School Level

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    The specific problem of this the sis is An Analytic Comparative Study of Certain Biology Textbooks Used at the Secondary School Level

    Experiencing Nothing: Anxiety and the Philosophy of Alain Badiou

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    This thesis proposes to supplement the philosophy of Alain Badiou with an existentialist account of anxiety. After identifying a “phenomenological deficit” in Badiou’s thought, I argue that Kierkegaard, Heidegger, and Sartre provide the conceptual resources for theorizing the affective emergence of subjectivity from within the confines of a determinant situation. My contention, simply, is that anxiety is a rare and unsettling experience of nothing that makes apparent the underlying contingency of all situations, thereby prompting new modes of subjective behavior. In this sense, I treat anxiety as the in-situation experience of an event that may occasion the transition from a determined-individual to a determining-subject

    Sustainability Strategies in U.S. Agribusiness: Understanding Key Drivers, Objectives, and Actions

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    sustainability, triple bottom line, strategy, stakeholders, supply chain, Agribusiness, Demand and Price Analysis, Environmental Economics and Policy, Production Economics, Productivity Analysis, Risk and Uncertainty,
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