5,764 research outputs found
History of the Strike-Lockout Distinction of Pennsylvania\u27s Unemployment Compensation Law
This article provides an analysis of the legislative changes to the labor dispute disqualification of the Pennsylvania Unemployment Compensation Law since its enactment in 1936, culminating in the lockout exception in 1949. This article attempts to provide a historical analysis while at the same time focusing on areas of controversy and litigation pertaining to labor dispute disqualification, particularly the judicially created concepts of status quo and reasonable time. Each area is discussed and specific changes in the interpretation of the law are suggested where warranted in the hope of fostering uniformity and consistency, thereby reducing the number of labor disputes in Pennsylvania while at the same time forming a body of law upon which interested parties may rely
The Proper Use of the Declaration of Public Policy Section of the Pennsylvania Unemployment Compensation Law
Exact Dynamics of Multicomponent Bose-Einstein Condensates in Optical Lattices in One, Two and Three Dimensions
Numerous exact solutions to the nonlinear mean-field equations of motion are
constructed for multicomponent Bose-Einstein condensates on one, two, and three
dimensional optical lattices. We find both stationary and nonstationary
solutions, which are given in closed form. Among these solutions are a
vortex-anti-vortex array on the square optical lattice and modes in which two
or more components slosh back and forth between neighboring potential wells. We
obtain a variety of solutions for multicomponent condensates on the simple
cubic lattice, including a solution in which one condensate is at rest and the
other flows in a complex three-dimensional array of intersecting vortex lines.
A number of physically important solutions are stable for a range of parameter
values, as we show by direct numerical integration of the equations of motion.Comment: 22 pages, 9 figure
Anomaly Detection in Paleoclimate Records using Permutation Entropy
Permutation entropy techniques can be useful in identifying anomalies in
paleoclimate data records, including noise, outliers, and post-processing
issues. We demonstrate this using weighted and unweighted permutation entropy
of water-isotope records in a deep polar ice core. In one region of these
isotope records, our previous calculations revealed an abrupt change in the
complexity of the traces: specifically, in the amount of new information that
appeared at every time step. We conjectured that this effect was due to noise
introduced by an older laboratory instrument. In this paper, we validate that
conjecture by re-analyzing a section of the ice core using a more-advanced
version of the laboratory instrument. The anomalous noise levels are absent
from the permutation entropy traces of the new data. In other sections of the
core, we show that permutation entropy techniques can be used to identify
anomalies in the raw data that are not associated with climatic or
glaciological processes, but rather effects occurring during field work,
laboratory analysis, or data post-processing. These examples make it clear that
permutation entropy is a useful forensic tool for identifying sections of data
that require targeted re-analysis---and can even be useful in guiding that
analysis.Comment: 15 pages, 7 figure
Hierarchical Linear Modeling of Drinking to Cope with Anxiety among College Students
Previous research has assumed that drinking motives (reasons for drinking) remain fairly stable over time (traits). The current study examines how drinking motives of college students may vary over time (states). Weekly measures were completed by 125 undergraduates at Old Dominion University, which examined how average levels of anxiety interacted with anxiety coping motives to influence drinking. Using Hierarchical Linear Modeling, it was found that anxiety coping motives were less predictive for participants with elevated average anxiety levels, as opposed to participants with normal to low anxiety levels. Implications and possible explanations are discussed.
Research Mentor: Dr. James Henson, Department of Psycholog
Health hints for your horse (1993)
One of the real disappointments of horse ownership is planning a number of horse activities, then finding that your animal is physically incapable or mentally unwilling to engage in them. Horse owners who don't practice "preventive maintenance" may find themselves in this situation. This publication describes illnesses and injuries that horse owners should mindful of
Mass transfer from smooth alabaster surfaces in turbulent flows
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94735/1/grl3757.pd
Optical/UV-to-X-Ray Echoes from the Tidal Disruption Flare ASASSN-14li
We carried out the first multi-wavelength (optical/UV and X-ray) photometric
reverberation mapping of a tidal disruption flare (TDF) ASASSN-14li. We find
that its X-ray variations are correlated with and lag the optical/UV
fluctuations by 324 days. Based on the direction and the magnitude of the
X-ray time lag, we rule out X-ray reprocessing and direct emission from a
standard circular thin disk as the dominant source of its optical/UV emission.
The lag magnitude also rules out an AGN disk-driven instability as the origin
of ASASSN-14li and thus strongly supports the tidal disruption picture for this
event and similar objects. We suggest that the majority of the optical/UV
emission likely originates from debris stream self-interactions. Perturbations
at the self-interaction sites produce optical/UV variability and travel down to
the black hole where they modulate the X-rays. The time lag between the
optical/UV and the X-rays variations thus correspond to the time taken by these
fluctuations to travel from the self-interaction site to close to the black
hole. We further discuss these time lags within the context of the three
variants of the self-interaction model. High-cadence monitoring observations of
future TDFs will be sensitive enough to detect these echoes and would allow us
to establish the origin of optical/UV emission in TDFs in general.Comment: Publish in ApJ Letter
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