منابع مشابه
the evolution of spine surgery in greece in the second half of the 20th century
spine surgery began its evolution in the beginning of the 19th century in order to reach nowadays the point of being considered an important subspecialty of neurosurgery and orthopaedics. the purpose of this historical review is the search and evaluation of the progress in spine surgery in the second half of the 20th century. this review concerns the evolution of this field in greece. special r...
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the second half of the third hijri century, coinciding with the reign of three caliphs, al-mu’tamid (256-79 ah), al-mu’tadhid (279-89 ah), and al-muktafi (289-95 ah), abbasids restored their authority and renewed their organization. this reform process which was began by abu ahmad al-muwaffaq (d. 278 ah) and reached its climax at the time of abu al-abbas al-mu’tadhid stood between two decline p...
متن کاملislamic asceticism and the evolution to mysticism from second century to fourth century
the present article is an attempt to study the appearance of asceticism and it’s development to mysticism ofter coming islamic religion.there are a lot of different views about the priority of asceticism to sufism or the priority of sufism to asceticism.the historical guidances prove that this evolution is accomplished from fear of god and his hell in to asceticism and abandonment of the life a...
متن کاملarabic language spread in khorasan (from the second century to the fifth century)
arabic language spread in different parts ofpersiaafter arabic-islamic expansion in this territory. the iranians were interested in learning arabic, because it was the language of the qoran and islam and its injunctions which were based on monoism and unity of god; and equality and justice this is why one not find a book composed in scientific or historical or religious subjects or on etics dur...
متن کاملAI’s Half-Century
design of the first digital computer, in the hands of John Von Neumann, was strongly influenced by this work of 1943. Von Neumann himself rejected logic as the key to human thinking. Something much more like thermodynamics, he speculated, is needed. And in 1947—only just under half a century ago—Pitts and McCulloch published “How We Know Universals: The Perception of Auditory and Visual Forms.”...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1972
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v050n039.p001