3,680 research outputs found

    Who Loses: An examination of losses in housing net worth, non-housing assets, and total savings from 2007 to 2008 among American families

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    This study models the loss in non-housing assets, increase in non-housing liabilities, and net change in housing value across people by education, ethnic, and occupational categories in the 2007-2008 collapse of Wall Street financial markets. Hypotheses of plausible loci of loss include the usual social categories. Findings do not confirm all of the common presuppositions—managerial class workers have among the largest losses, retirees somewhat limited losses, and losses by educational group decline with advancing education, with the possible exception of Ph.D. holders. The group which had the most severe losses in all asset categories was the armed forces. The magnitude of the suggested effects would indicate that additional policy attention should be targeted on military family outcomes under economic stress.housing net worth; non-household liabilities; non-household assets; occupational group; education level;

    Search for Eccentric Binary Neutron Star Mergers in the first and second observing runs of Advanced LIGO

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    We present a search for gravitational waves from merging binary neutron stars which have non-negligible eccentricity as they enter the LIGO observing band. We use the public Advanced LIGO data which covers the period from 2015 through 2017 and contains 164\sim164 days of LIGO-Hanford and LIGO-Livingston coincident observing time. The search was conducted using matched-filtering using the PyCBC toolkit. We find no significant binary neutron star candidates beyond GW170817, which has previously been reported by searches for binaries in circular orbits. We place a 90% upper limit of 1700\sim1700 mergers Gpc3Yr1\textrm{Gpc}^{-3} \textrm{Yr}^{-1} for eccentricities 0.43\lesssim 0.43 at a dominant-mode gravitational-wave frequency of 10 Hz. The absence of a detection with these data is consistent with theoretical predictions of eccentric binary neutron star merger rates. Using our measured rate we estimate the sensitive volume of future gravitational-wave detectors and compare this to theoretical rate predictions. We find that, in the absence of a prior detection, the rate limits set by six months of Cosmic Explorer observations would constrain all current plausible models of eccentric binary neutron star formation

    Some Factors Which Influence the Rigidity and Durability of Waxed Paperboard Cartons for Packaging Liquid Food Products

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    Introduction A. Paperboard There are many types of heavy papers and paperboards manufactured today from various pulps. The paperboard which has grown the fastest in consumption in the past ten years is that intended for packaging foods. (1) The most common food board is that manufactured on either a cylinder or fourdrinier machine, is nearly all consumed by manufacturers of varied milk cartons, and fruit juice cartons. These cartons are fabricated from the afore mentioned paperboard for many reasons

    Gnosticism and its Conflict with Christianity

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    The study of such a movement as Gnosticism is doubly important to the student of\u27 theology. This is a phase of history which greatly influenced the church in its infancy. It has left marks upon the church which will never be erased. Moreover, a study of this heresy is essential for the proper understanding of the New Testament. Again, the influence of Gnosticism, as will be pointed out later continued for many centuries. Such a deeply rooted, powerful, paganistic tendency cannot be lightly passed by

    Conscious visions

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    My goal in creating this body of work is to investigate narrative painting using images which are personally relevant. I have labeled my paintings as representations of personal allegories derived from memories and dreams, and in doing so I am referring to the transference of memory, and its inherently subjective and ambiguous visual images, into a concrete visual form. I also attach symbolic importance to the memories I have chosen to paint, not because the events they describe are hallmarks of my life, but rather for their random nature. These images all describe moments when I have consciously thought I should remember this. I avoided choosing memories for which I have photographic references because I wanted to fully embrace the process of working from memory. My interest lies not in replication, but rather in the process of constructing a narrative setting which captures a brief moment in time. The joy of working from memory is the ability to select, distort and edit at will within the transition from three to two dimensions. To acknowledge the subjectivity of this process I like to refer to my paintings as visual constructions. Acknowledging the subjective nature of memory and of composition, I feel free to approach representation, color, perspective and composition in a non-traditional manner

    PyCBC Live: Rapid Detection of Gravitational Waves from Compact Binary Mergers

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    We introduce an efficient and straightforward technique for rapidly detecting gravitational waves from compact binary mergers. We show that this method achieves the low latencies required to alert electromagnetic partners of candidate binary mergers, aids in data monitoring, and makes use of multidetector networks for sky localization. This approach was instrumental to the analysis of gravitational-wave candidates during the second observing run of Advanced LIGO, including the period of coincident operation with Advanced Virgo, and in particular the analysis of the first observed binary neutron star merger GW170817, where it led to the first tightly localized sky map (31 deg231~\mathrm{deg}^2) used to identify AT 2017gfo. Operation of this analysis also enabled the initial discovery of GW170104 and GW170608 despite non-nominal observing of the instrument.Comment: 10 pages, 5 figures, submitted to Physical Review

    Integrative systematics and biogeography of Limax (Gastropoda:Stylommatophora)

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