Results 331 to 340 of about 922,585 (380)

The Hardness of Hard Treatment [PDF]

open access: possible, 1998
Abstract In February, 1996, Rosemary West was convicted of ten murders of young women, including a daughter and stepdaughter. The British public were shocked by the gruesome details as they gradually unfolded. West (whose co-defendant husband committed suicide in custody) was sentenced to life imprisonment on each count.
openaire   +1 more source

A model of hardness and fracture toughness of solids

Journal of Applied Physics, 2019
Hardness and fracture toughness are some of the most important mechanical properties. Here, we propose a simple model that uses only the elastic properties to calculate the hardness and fracture toughness. Its accuracy is checked by comparison with other
E. Mazhnik, A. Oganov
semanticscholar   +1 more source

Randomness is hard

Proceedings. Thirteenth Annual IEEE Conference on Computational Complexity (Formerly: Structure in Complexity Theory Conference) (Cat. No.98CB36247), 2000
We study the set of incompressible strings for various resource bounded versions of Kolmogorov complexity. The resource bounded versions of Kolmogorov complexity we study are polynomial time CD complexity defined by Sipser, the nondeterministic variant CND due to Buhrman and Fortnow, and the polynomial space bounded Kolmogorov complexity CS introduced ...
Buhrman, H.M., Torenvliet, L.
openaire   +6 more sources

Conditional Hardness Results for Massively Parallel Computation from Distributed Lower Bounds

IEEE Annual Symposium on Foundations of Computer Science, 2019
We present the first conditional hardness results for massively parallel algorithms for some central graph problems including (approximating) maximum matching, vertex cover, maximal independent set, and coloring.
M. Ghaffari, F. Kuhn, Jara Uitto
semanticscholar   +1 more source

Thermodynamic hardness and the maximum hardness principle

The Journal of Chemical Physics, 2017
An alternative definition of hardness (called the thermodynamic hardness) within the grand canonical ensemble formalism is proposed in terms of the partial derivative of the electronic chemical potential with respect to the thermodynamic chemical potential of the reservoir, keeping the temperature and the external potential constant.
Alberto Vela   +4 more
openaire   +3 more sources

Hard facts for hard science [PDF]

open access: possiblePhysics World, 1998
Here are two related problems. First, the number of applicants to UK university courses in the physical sciences has fallen by 26% over the last three years. Second, there is an increasing tide of opinion – not only among opinion-formers, but also among those who set research priorities – that the future of physics in the 21st century lies in its role ...
John Hassard, Colling, Dick Learner
openaire   +1 more source

Work hard and play hard

Practice Nursing, 1998
Some evenings ago there was a TV programme on the problems of substance abuse amongst doctors. It highlighted the manner in which their addictions had been hidden from colleagues and the horrendous dangers their patients were exposed to. Nurses also have amongst their number those who use addictive and performance diminishing drugs.
openaire   +1 more source

Alkalinity and Hardness: Critical but Elusive Concepts in Aquaculture

, 2016
Total alkalinity and total hardness are familiar variables in aquatic animal production. Aquaculturists—both scientists and practitioners alike—have some understanding of the two variables and of methods for adjusting their concentrations.
C. Boyd, C. Tucker, B. Somridhivej
semanticscholar   +1 more source

Hard Instances of Hard Problems

2000
This paper investigates the instance complexities of problems that are hard or weakly hard for exponential time under polynomial time, many-one reductions. It is shown that almost every instance of almost every problem in exponential time has essentially maximal instance complexity.
Vikram Shantveer Mhetre   +2 more
openaire   +2 more sources

Hard Cases and Hard Law

JAMA: The Journal of the American Medical Association, 1974
To the Editor.— The medical profession is under attack—hard cases—and unless it cleans its own house, the public will do so for it—bad law. I want to clarify, if possible, the scrambling of the use of the aphorism, in which "hard cases" means hard because of judicial sympathy for one of the parties, and in which "bad law" means a precedent that, if ...
openaire   +2 more sources

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