16,569 research outputs found
Some Observations on the Nature of Insect Names
A recent study of dragonfly names (Montgomery, 1973) has led to a consideration of insect names, especially ancient and early English names. This interest was aroused, chiefly by the statement in Sarot\u27s study of the folklore of the dragonfly from A Linguistic Approach that no recognizable name for dragonflies has been found in Anglo-Saxon, classical Latin or ancient Greek. Any language is capable of supplying names for all objects, including insects, which are recognized by its community of speakers. As so many names for dragonflies have been found in modern languages, (95 in English, over 60 in German, about 40 in French and almost 200 in Italian) and names for other insects are fairly numerous in these languages (for example: at least 13 for grasshopper or locust, eight for beetles, and six each for moth, fly and cicada in ancient Greek) this is surprising if not incredible. However, in several years of search I must say that I have been as unsuccessful as Sarot. The search is made rather difficult because all of the comprehensive dictionaries and glossaries of these languages which I have found are one-way, that is from the other language into English. Search for an English word in them is comparable in difficulty to getting where you wish to go by traveling the wrong way on a lane of a super-highway! A great amount of data on insect names in general has been acquired
Dynamic simulations of water at constant chemical potential
The grand molecular dynamics (GMD) method has been extended and applied to examine the density dependence of the chemical potential of a three-site water model. The method couples a classical system to a chemical potential reservoir of particles via an ansatz Lagrangian. Equilibrium properties such as structure and thermodynamics, as well as dynamic properties such as time correlations and diffusion constants, in open systems at a constant chemical potential, are preserved with this method. The average number of molecules converges in a reasonable amount of computational effort and provides a way to estimate the chemical potential of a given model force field
Employment creation and destruction: an analytical review
A presentation of some new evidence on differences in the causes of high- and low-frequency movements in employment, focusing on whether the components of cyclical and secular (regional) variations in job growth follow similar patterns.Employment (Economic theory) ; Regional economics
Velocity field distributions due to ideal line vortices
We evaluate numerically the velocity field distributions produced by a
bounded, two-dimensional fluid model consisting of a collection of parallel
ideal line vortices. We sample at many spatial points inside a rigid circular
boundary. We focus on ``nearest neighbor'' contributions that result from
vortices that fall (randomly) very close to the spatial points where the
velocity is being sampled. We confirm that these events lead to a non-Gaussian
high-velocity ``tail'' on an otherwise Gaussian distribution function for the
Eulerian velocity field. We also investigate the behavior of distributions that
do not have equilibrium mean-field probability distributions that are uniform
inside the circle, but instead correspond to both higher and lower mean-field
energies than those associated with the uniform vorticity distribution. We find
substantial differences between these and the uniform case.Comment: 21 pages, 9 figures. To be published in Physical Review E
(http://pre.aps.org/) in May 200
Library Economic Metrics: Examples of the Comparison of Electronic and Print Journal Collections and Collection Services
published or submitted for publicatio
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