9,462 research outputs found
Will Liam save us? : an analysis of Apple's zero-waste goals and waste networks associated with the MacBook : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Media Studies at Massey University, Manawatū, New Zealand
As popular awareness of global environmental crises rises, the circular economy model is
increasingly heralded as a means to address the environmental impact of traditional extractive
economies. Technology provider Apple has been among high-profile corporations quick to
adopt a circular model, announcing their plans to both end mining and become zero-waste. In
this thesis, I analyse Apple’s zero-waste plans using my own notebook as a case study. A
discourse analysis of the company’s 2017 Environmental Responsibility Report reveals that the
zero-waste approach is (at least in part) a marketing strategy. It works to increase Apple’s
power and consumer base. The zero-waste strategy is presented as distinct from their social
responsibility, echoing the way that waste is conceptualised within the circular economy. Both
Apple’s zero-waste plan and the circular economy rely heavily on technological innovation to
offer solutions to waste. Waste is understood as something distinct from, and entirely
controllable by, human intention.
Individual case studies of my notebooks aluminium casing and hard disk drive
demonstrate that vast waste networks of human and nonhuman actors enable Apple to function
as they do, and are in fact integral to any economy organised around the pursuit of profit.
Within this context, attempts to circumvent the worst harms associated with the extraction,
production, consumption, and disposal contexts of ICT equipment will end up reinscribing or
reinforcing wasteful practices. Through an auto-ethnographic description of dealing with the
notebooks possibly failing battery, I argue that understanding ourselves as separate from waste
networks (as zero-waste discourses encourage us to do) similarly forecloses the possibility of
disrupting the most negative impacts of waste. Repair tentatively emerges as one way of
destabilising the power of large corporations that benefit from capital such as Apple.
Ultimately, the case studies presented here raise serious doubts about both Apple’s zero-waste
strategy and the circular economy in general
Resurgence and Topological Strings
The mathematical idea of resurgence allows one to obtain nonperturbative
information from the large-order behavior of perturbative expansions. This idea
can be very fruitful in physics applications, in particular if one does not
have access to such nonperturbative information from first principles. An
important example is topological string theory, which is a priori only defined
as an asymptotic perturbative expansion in the coupling constant g_s. We show
how the idea of resurgence can be combined with the holomorphic anomaly
equation to extend the perturbative definition of the topological string and
obtain, in a model-independent way, a large amount of information about its
nonperturbative structure.Comment: 11 pages, 7 figures. Pedestrian introduction to 1308.1695 and
1407.4821, based on my talk at String Math 2014. Submitted for the
proceedings of that conferenc
Neural Network Applications
Artificial neural networks, also called neural networks, have been used successfully in many fields including engineering, science and business. This paper presents the implementation of several neural network simulators and their applications in character recognition and other engineering area
Eastern Taranaki Basin field guide.
Linking the onshore and offshore parts of Eastern Taranaki Basin: Insights to stratigraphic architecture, sedimentary facies, sequence stratigraphy, paleogeography and hydrocarbon exploration from the on land record
On the partition sum of the NS five-brane
We study the Type IIA NS five-brane wrapped on a Calabi-Yau manifold X in a
double-scaled decoupling limit. We calculate the euclidean partition function
in the presence of a flat RR 3-form field. The classical contribution is given
by a sum over fluxes of the self-dual tensor field which reduces to a
theta-function. The quantum contributions are computed using a T-dual IIB
background where the five-branes are replaced by an ALE singularity. Using the
supergravity effective action we find that the loop corrections to the free
energy are given by B-model topological string amplitudes. This seems to
provide a direct link between the double-scaled little strings on the
five-brane worldvolume and topological strings. Both the classical and quantum
contributions to the partition function satisfy (conjugate) holomorphic anomaly
equations, which explains an observation of Witten relating topological string
theory to the quantization of three-form fields.Comment: 35 page
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