8,068 research outputs found
Does the Future of Product Liability Actions Change after \u3ci\u3eHawkins v. Leslie\u27s Pool Mart, Inc.\u3c/i\u3e?
The Cannibal Cop: Why the Federal Courts Should Allow for a Free-Speech Defense in Conspiracy Cases
Some investigations into the numerical solution of initial value problems in ordinary differential equations
PhD ThesisIn this thesis several topics in the numerical solution
of the initial value problem in first-order ordinary diff'erentlal
equations are investigated,
Consideration is given initially to stiff differential
equations and their solution by stiffly-stable linear multistep
methods which incorporate second derivative terms. Attempts are
made to increase the size of the stability regions for these
methods both by particular choices for the third characteristic
polynomial and by the use of optimization techniques while
investigations are carried out regarding the capabilities of a
high order method.
Subsequent work is concerned with the development of
Runge-Kutta methods which include second-derivative terms and
are implicit with respect to y rather than k. Methods of
order three and four are proposed which are L-stable.
The major part of the thesis is devoted to the establishment
of recurrence relations for operators associated with linear
multistep methods which are based on a non-polynomial
representation of the theoretical solution. A complete set of
recurrence relations is developed for both implicit and
explicit multistep methods which are based on a representation
involving a polynomial part and any number of arbitrary functions.
The amount of work involved in obtaining mulc iste, :ne::l'lJds by this
technique is considered and criteria are proposed to Jecide when
this particular method of derivation should be em~loyed.
The thesis is conclud~d by using Prony's method to develop
one-step methods and multistep methods which are exponentially
adaptive and as such can be useful in obtaining solutions to
problems which are exponential in nature
Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation
© 2015 AIP Publishing LLC. The bi-modal nature of charge integrated ion kinetic energy distributions, which result from ultrafast laser produced plasmas, is discussed in this paper. A negatively biased Faraday cup was used as a charge collector to measure ion distributions from three different solid targets that had been irradiated with an ultrafast laser in the fluence range 0.1-1 J/cm2. A bi-modal time of flight distribution is found for all three targets (C, Al, and Cu). In the case of the metallic targets (Al and Cu), high- and low-kinetic energy peaks exhibit quite different dependencies on laser fluence, whereas for the semi-metallic target (C), both peaks scale similarly with ultrafast laser fluence. The results are discussed within the framework of a one dimensional capacitor model resulting in ion acceleration
Plan of the Southerly and Westerly Part of the Town of Edmunds
Plan of the south-westerly part of the town of Edmunds, particularly the land in dispute between Aaron and Benjamin Hobart. The Hobart dispute encompassed a total of 134 1/4 acres along the length of the 6th Range. The disputed lines are labeled J-E and G-F. The map scale is 1:15,840 or 80 rods per inch.https://digitalcommons.library.umaine.edu/mainebicentennial/1042/thumbnail.jp
Structure and Composition of Pollen Grains of Vernal Plants
Among the first morphological studies of pollen were those of Malpighi (1686) and of Grew (1675). While numerous articles on their structure and composition of pollen have been contributed, the amount of data available in application to several problems involved in such study is yet somewhat fragmentar
Body Composition and Perceived Stress through a Calendar Year in NCAA I Female Volleyball Players
International Journal of Exercise Science 12(5): 433-443, 2019. The aim of the study was to track changes of perceived stress and body composition across an entire calendar year in National Collegiate Athletic Association (NCAA) division I female volleyball players. We hypothesized that perceived stress and body composition would vary between the competitive season and off-season, with the largest changes occurring during time points prior to the onset and after the end of the competitive season. Eight female volleyball players participated in a longitudinal study. Body mass, body mass index (BMI), percent body fat, fat mass, and fat free mass were obtained during the early, mid, late, and off season and during the pre, early, mid, and late competitive season. The perceived stress scale-10 was used to appraise stress levels. BMI and body mass were significantly higher in pre-season compared to early-offseason. Changes in BMI between these points were due to increase in fat mass. Fat mass and percent body fat were significantly higher in pre-season compared to late off-season, mid-season, and late season. Perceived stress was significantly higher at the mid-season compared to early offseason. A significant positive correlation existed between BMI and body fat (p\u3c0.05, r=0.69), while a significant negative correlation existed between percent body fat and perceived stress (p\u3c0.05, r=0.34). Tracking body composition and perceived stress in collegiate female volleyball players can provide informative feedback on the training status and well-being of female collegiate athletes. Interestingly, it appears stress in these athletes may be more dependent upon the school session rather than participation in competitive sports
Information Flow in Entangled Quantum Systems
All information in quantum systems is, notwithstanding Bell's theorem,
localised. Measuring or otherwise interacting with a quantum system S has no
effect on distant systems from which S is dynamically isolated, even if they
are entangled with S. Using the Heisenberg picture to analyse quantum
information processing makes this locality explicit, and reveals that under
some circumstances (in particular, in Einstein-Podolski-Rosen experiments and
in quantum teleportation) quantum information is transmitted through
'classical' (i.e. decoherent) information channels.Comment: PostScript version now available:
http://www.qubit.org/people/patrickh/Papers/InformationFlow.p
No Evidence for Orbital Loop Currents in Charge Ordered YBaCuO from Polarized Neutron Diffraction
It has been proposed that the pseudogap state of underdoped cuprate
superconductors may be due to a transition to a phase which has circulating
currents within each unit cell. Here, we use polarized neutron diffraction to
search for the corresponding orbital moments in two samples of underdoped
YBaCuO with doping levels and 0.123. In contrast to
some other reports using polarized neutrons, but in agreement with nuclear
magnetic resonance and muon spin rotation measurements, we find no evidence for
the appearance of magnetic order below 300 K. Thus, our experiment suggests
that such order is not an intrinsic property of high-quality cuprate
superconductor single crystals. Our results provide an upper bound for a
possible orbital loop moment which depends on the pattern of currents within
the unit cell. For example, for the CC- pattern proposed by Varma,
we find that the ordered moment per current loop is less than 0.013 for
.Comment: Comments in arXiv:1710.08173v1 fully addresse
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