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36 results on '"Lawrence, Christopher J."'

13. Informal Debt Relationships among Millennials.

Author

Lawrence, Christopher J. and Iafolla, Teresa

Subjects
DEBT, MILLENNIALS, OPEN-ended questions, TEMPORAL databases
Abstract

Debt is a renewed topic of interest in sociology, particularly as a relational phenomenon. Dwyer has provided a recent model that identifies debt along an institutional axis (spanning the poles of state and market) and a temporal axis (spanning the poles of prospective credit offer and retrospective debt obligation). We extend this conceptualization and broader effort by providing a qualitative exploration of informal debt relationships--that is, debt obligations between individuals and their family members, friends, and romantic partners. The data come from a survey, consisting of several open-ended questions, on how debt has affected the relationships of Millennials, a generation that is struggling financially. Our sample consists of 123 Americans between the ages of 30 and 37 and from a variety of financial situations. [ABSTRACT FROM AUTHOR]

Published
2019

29. Evaluation of Drop Size Distribution from Chord Length Measurements.

Author

Bin Hu, Angeli, Panagiota, Matar, Omar K., Lawrence, Christopher J., and Hewitt, Geoffrey F.

Subjects
DROPLETS, DISPERSION (Chemistry), PROBABILITY theory, DENSITY functionals, ALGORITHMS
Abstract

The relationship between the chord length distribution (CLD) obtained by a point sensor and the drop size distribution (DSD) in a liquid-liquid dispersion is investigated. Based on analysis of the frequency of drop-cuttings by the sensor, a physical model is built to derive the probability density function of chord lengths for a given DSD, and vice versa. The effect of biased sampling towards larger drops relevant to point sensors, which is often ignored by investigators, is included in this relationship. A new algorithm is introduced to solve the problem of noisy or even negative DSD values by adding smoothing equations while performing the backward conversion. The effects of parameters, such as the number of drop size groups used, the noise level, and the smoothing factor value, on the backward transform are further studied. Both forward and backward transforms are shown to be in good agreement with ideal data when using continuous (e.g., log-normal, uniform) distributions and with data obtained from Monte-Carlo simulations. Good agreement is also found between the DSD obtained from chord length measurements and drop size data determined by direct observation. [ABSTRACT FROM AUTHOR]

Published
2006
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36. Book reviews.

Author

Lawrence, Christopher J.

Subjects
APPROACHING Hysteria (Book)
Abstract

Reviews the book `Approaching Hysteria: Disease and Its Interpretations,' by Mark S. Micale.

Published
1996

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