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New variational approach to the periodic Anderson model
Physical Review B, 1987A new variational method is proposed for the ground state of the periodic Anderson model with infinitely large Coulomb repulsion. A wave function is the Gutzwiller type function which is an extension of the Varma and Yafet's wave function for the single impurity problem to the lattice case.
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Period variations in SZ Arietis
Astrophysics and Space Science, 1990A new period (P=1d.7175405) of the eclipsing binary system SZ Arietis has been presented. Period changes in different portions of the O-C diagram, with new period, have been estimated. The total change in period (ΔP) ranges from 3.64×10−5 d to 4.24×10−4 d, which is appreciably large.
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Periodic weather and climate variations
Uspekhi Fizicheskih Nauk, 2002Variations in meteorological parameters are largely due to periodic processes and can be forecast for several years. Many such processes are related to astronomical factors such as the gravitational influences of the Moon and the Sun, and the modulation of solar irradiance by lunar and planetary motion.
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Geographic Variation in Breast Cancer Mortality for White and Black Women: 1986–1995†
Ca-A Cancer Journal for Clinicians, 2001William F Anderson, W F Anderson
exaly
Worldwide Variations in Colorectal Cancer†‡
Ca-A Cancer Journal for Clinicians, 2009Ahmedin Jemal, Robert A Smith, E Ward
exaly
Variations of Periodization of Strength
STRENGTH AND CONDITIONING JOURNAL, 1996openaire +1 more source