منابع مشابه
Ages and stratigraphy of mare basalts in Oceanus Procellarum, Mare Nubium, Mare Cognitum, and Mare Insularum
[1] Accurate estimates of mare basalt ages are necessary to place constraints on the duration and the flux of lunar volcanism as well as on the petrogenesis of lunar mare basalts and their relationship to the thermal evolution of the Moon. We performed new crater size-frequency distribution measurements in order to investigate the stratigraphy of mare basalts in Oceanus Procellarum and related ...
متن کاملGray, Idiosyncratic, and Generative: Fathoming the New Old Workforce
We investigated the organizational implications of the relationship between the pro-social behavior of generativity and an aging workforce under assumptions of increasing mortality awareness. The study involved secondary analysis of data from an existing nationally representative random-digit-dial sample of non-institutionalized English-speaking adults, aged 25 to 74. The results provided empir...
متن کاملRestricted compositions and permutations: From old to new Gray codes
Any Gray code for a set of combinatorial objects defines a total order relation on this set: x is less than y if and only if y occurs after x in the Gray code list. Let ≺ denote the order relation induced by the classical Gray code for the product set (the natural extension of the Binary Reflected Gray Code to k-ary tuples). The restriction of ≺ to the set of compositions and bounded compositio...
متن کاملAn Apollo 15 mare basalt fragment and lunar mare provinces
Lunar sample 15474,4 is a tiny fragment of olivine-augite vitrophyre that is a mare basalt. Although petrographically distinct from all other Apollo 15 samples, it has been ignored since its first brief description. Our new petrographic and mineral chemical data show that the olivines and pyroxenes are distinct from those in other basalts. The basalt cooled and solidified extremely rapidly; som...
متن کاملPregnant Mare Serum Gonadotropin
Procedures have been developed for the purification of pregnant mare serum gonadotropin (PMSG) and its a and jl subunits. The procedure for the hormone purification involves three steps of column chromatography on Sephadex G-100, DEAE-Sephadex A-50, and hydroxyapatite. The preparation of subunits involves the dissociation of PMSG with 10 M urea followed by their separation by chromatography on ...
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ژورنال
عنوان ژورنال: Journal des traducteurs
سال: 1961
ISSN: 0316-3024,2562-2994
DOI: 10.7202/1061691ar