منابع مشابه
Shock fronts in the symbiotic system BI Crucis
We investigate the symbiotic star BI Crucis through a comprehensive and selfconsistent analysis of the spectra emitted in three different epochs: 60’s, 70’s, and late 80’s. In particular, we would like to find out the physical conditions in the shocked nebula and in the dust shells, as well as their location within the symbiotic system, by exploiting both photometric and spectroscopic data from...
متن کاملThe „experimentum Crucis”
1− v/c, where c is the speed of light in vacuo. In this case, the frequency of an atomic clock can vary depending on its velocity. The frequency of the clock can be influenced by other external factors as well. The Pound–Rebka experiments [2] demonstrated the gravitation potential effect of this variable. Therefore the conditions of the present experiment were chosen in such a way that except f...
متن کاملAn experimentum crucis in salt sensitivity.
ELUCIDATION OF THE GENETIC BASIS of essential hypertension is a challenging endeavor. Remarkable progress has been made studying families affected by rare Mendelian forms of high or low blood pressure. This approach has been successful because it identifies mutations with large effect sizes on single genes that regulate renal sodium (Na ) handling and Na balance. However, essential hypertension...
متن کاملBrown Algae Padina sanctae-crucis Børgesen: A Potential Nutraceutical
Padina sanctae-crucis Børgesen is distributed worldwide in tropical and subtropical seas; belongs to the Dictyotaceae family, and has proven to be an exceptional source of biologically active compounds. Four compounds were isolated and identified, namely: dolastane diterpene new for the genus Padina; phaeophytin and hidroxy-phaeophytin new for the family Dictyotaceae, and; mannitol first descri...
متن کاملInvestigating the Longitudinal Optical Conductivity in Three-Layer Graphene Systems with Composes Mono-Bi-Bi and Bi-Mono-Bi and Bi-Bi-Mono
The longitudinal optical conductivity is the most important property for graphene-baseddevices. So investigating this property for spatially separated few-layer graphene systems analytically and numerically is the main purpose of our study. Each layer can be mono- or bi-layer graphene. The density-density correlation function has been screened by the dielectric function using the random p...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1988
ISSN: 0252-9211
DOI: 10.1017/s0252921100103707