19,671 research outputs found
German Source Materials in American Libraries
https://epublications.marquette.edu/mupress-book/1003/thumbnail.jp
Electronic charge density in helium in the first order shielding approximation
Electronic charge density for ground state of helium as function of nuclear charg
Some Remarks on the Use of the Variational Principle for the Second Order Energy
Approximate ground state wave function used in variational principle for second order energ
Variational method 3 - Steady state time dependent perturbation theory
Steady state time dependent perturbation theory and variational principle
The variational method 2 - Perturbation theory
Variational method to approximate solutions of perturbation equations, perturbation analyses, and use of perturbation theory to infer variational principl
Redressing the Rural-Urban Imbalance
This paper focuses on rural poverty, its causes and effects, and suggests one of a number of possible measures to alleviate the problem. It examines why there exists an urban bias in development, and the impact it has on development patterns. The macroimplications derived from intensive longitudinal micro-studies of two South Indian villages are also examined. These studies throw into relief the key role income-generating opportunities play in rural societies. They show how the existence of such opportunities ensures the reduction of rural poverty and removes, or at least reduces, the need for ruralurban migration; whereas their absence has the reverse effect. As the growing rural population accompanied by increasing water shortages reduce the possibilities of continuing increases in agricultural productivity, there is an urgent need to urbanise rural life and to make it more attractive in terms of economy and infrastructure. Finally, an outline of a Three-Level Rural-Urban Business Linkages paradigm, which though putting emphasis on increased agricultural productivity, stresses the growing importance of establishing agro-based industries and the creation of other off-farm activities. It is presented as one option that may be pursued to redress the rural-urban imbalance and thereby reduce rural poverty. The paradigm involves a decentralisation of small goods productive processes in a setting of Growth Areas and Growth Centres that are linked with the nearest large towns and/or cities. As long as the political will exists and the necessary preconditions are met, the implementation of this paradigm constitutes a good chance of improving conditions in both rural and urban areas.
Variational methods and degenerate perturbation theory
Variational methods and degenerate perturbation theor
Theorems satisfied by variational wave functions in scattering theory
Various theorems in the theory of spinless particle scattering by a real central potential are derived directly from the Kohn variational principle
Sum rules for variational wave functions
Sum rules for variational wave function
Two notes on perturbation theory. 1 - Interchange theorems and the variation principle. 2 - PV in a different notation
Interchange theorems and variational principle in perturbation theor
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