Madrepora

Exploring materiality and how we’re inextricably entangled with it, this thesis dive into bodily, aqueous, and political engagements for dissolving the human project of separating nature from culture and bodies from environments. This dematerialization practice driven by discursive means has served as an excuse for the industrial exploitation and abuse of the less seen. Infused by the material turn in feminist theory, I propose to think with materiality in all its wet, slimy, and dusty ongoingness as a way to craft from the living and dying processes that we embody as current wanderers among contamination, scarcity, and ruins. Proposing a conceptual move, from the surface to the muddy bottom, I embark a submersion between folds of biological and historical depth. Recalling our common bacterial past, I start with Lynn Margulis\u27s symbiotic theory of cell evolution and the porous dynamics of interaction among bodies, species, and environments through the concept of “transcorporeality” developed by Stacy Alaimo. Descending from the microbial perspective of evolution, I extend my analysis into the vastness of the modern sea and the scattered sources of freshwater of the planet. By casting the ocean as the water’s depth, and freshwater as the commodification of this medium/material, I point out in how ignoring the agency of watery assemblages -and of nonhuman subjects in general- has been a major obstacle for creating a common ecological awareness and sensibility that allows us to coexists in more sustainable and ethical ways. Being drifted by transformative and non-hierarchical flows, I channel my stream of thoughts and pour them into a vessel for microbial, chemical, decorative, and multi-species collaboration. This artificial and biotic environment is an aquarium, my particular aquarium tank located in my studio at Rhode Island School of Design, and which I argue is not just a miniature representation of the sea, but a reflection of our daily interaction as porous beings embedded within an environment that bathes on the impacts of our material actions

THE HIGH CADENCE TRANSIENT SURVEY (HITS). I. SURVEY DESIGN AND SUPERNOVA SHOCK BREAKOUT CONSTRAINTS

Indexación: Web of Science; Scopus.We present the first results of the High Cadence Transient Survey (HiTS), a survey for which the objective is to detect and follow-up optical transients with characteristic timescales from hours to days, especially the earliest hours of supernova (SN) explosions. HiTS uses the Dark Energy Camera and a custom pipeline for image subtraction, candidate filtering and candidate visualization, which runs in real-time to be able to react rapidly to the new transients. We discuss the survey design, the technical challenges associated with the real-time analysis of these large volumes of data and our first results. In our 2013, 2014, and 2015 campaigns, we detected more than 120 young SN candidates, but we did not find a clear signature from the short-lived SN shock breakouts (SBOs) originating after the core collapse of red supergiant stars, which was the initial science aim of this survey. Using the empirical distribution of limiting magnitudes from our observational campaigns, we measured the expected recovery fraction of randomly injected SN light curves, which included SBO optical peaks produced with models from Tominaga et al. (2011) and Nakar & Sari (2010). From this analysis, we cannot rule out the models from Tominaga et al. (2011) under any reasonable distributions of progenitor masses, but we can marginally rule out the brighter and longer-lived SBO models from Nakar & Sari (2010) under our best-guess distribution of progenitor masses. Finally, we highlight the implications of this work for future massive data sets produced by astronomical observatories, such as LSST.http://iopscience.iop.org/article/10.3847/0004-637X/832/2/155/meta;jsessionid=76BDFFFE378003616F6DBA56A9225673.c4.iopscience.cld.iop.or

One-sided versus two-sided stochastic descriptions

It is well-known that discrete-time finite-state Markov Chains, which are described by one-sided conditional probabilities which describe a dependence on the past as only dependent on the present, can also be described as one-dimensional Markov Fields, that is, nearest-neighbour Gibbs measures for finite-spin models, which are described by two-sided conditional probabilities. In such Markov Fields the time interpretation of past and future is being replaced by the space interpretation of an interior volume, surrounded by an exterior to the left and to the right. If we relax the Markov requirement to weak dependence, that is, continuous dependence, either on the past (generalising the Markov-Chain description) or on the external configuration (generalising the Markov-Field description), it turns out this equivalence breaks down, and neither class contains the other. In one direction this result has been known for a few years, in the opposite direction a counterexample was found recently. Our counterexample is based on the phenomenon of entropic repulsion in long-range Ising (or "Dyson") models.Comment: 13 pages, Contribution for "Statistical Mechanics of Classical and Disordered Systems

Compassion as a practical and evolved ethic for conservation

© The Author(s) 2015. Published by Oxford University Press on behalf of the American Institute of Biological Sciences. The ethical position underpinning decisionmaking is an important concern for conservation biologists when setting priorities for interventions. The recent debate on how best to protect nature has centered on contrasting intrinsic and aesthetic values against utilitarian and economic values, driven by an inevitable global rise in conservation conflicts. These discussions have primarily been targeted at species and ecosystems for success, without explicitly expressing concern for the intrinsic value and welfare of individual animals. In part, this is because animal welfare has historically been thought of as an impediment to conservation. However, practical implementations of conservation that provide good welfare outcomes for individuals are no longer conceptually challenging; they have become reality. This reality, included under the auspices of "compassionate conservation," reflects an evolved ethic for sharing space with nature and is a major step forward for conservation

Pulseq: A rapid and hardwareâ independent pulse sequence prototyping framework

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/136354/1/mrm26235.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/136354/2/mrm26235_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/136354/3/mrm26235-sup-0001-suppinfo.pd