Speleothems from continental North American caves have been dated by means of the (230)Th/(234)U method. Oxygen isotopic variations in the dated samples and phases of speleothem deposition can be interpreted in terms of climatic change. A glacial chronology constructed from the age and isotopic data lends support to the astronomical theory of climatic change.

kimia-ye sa'adat is the most important work of abu hamed mohammad ghazzali in persian which has been edited and published twice in iran: the first time in 1940/1319 š by ahmad aram, and the second time in 1982/1361 š by hossein khadiv jam who had already published the first half of the book in 1976/1355 š. this article seeks to study these two editions, especially the one by khadiv jam, and com...

Felipe IV restituyó la alcaidía de Alhambra a Casa Mondéjar en 1624 tras un breve periodo tiempo el que estuvo manos del duque Uceda. La se restauró cabeza Íñigo López Mendoza, V marqués Mondéjar, vivió desde entonces forma continuada acompañado algunos familiares y modesto servicio. En llevó cabo diversas iniciativas materia arte, arquitectura, jardines, según gusto barroco imperante Europa. R...