منابع مشابه
Comparison of the NIST and ENEA Air Kerma Standards
A comparison was made between the National Institute of Standards and Technology (NIST) and Ente per le Nuove Tecnologie l'Energia e l'Ambiente (ENEA) air kerma standards for medium energy x rays and 60Co gamma rays. The comparison took place at ENEA in June 1994. Two different transfer chambers from NIST were used for the comparison. The measurements were made at radiation qualities similar to...
متن کاملEl Cerebelo En El Autismo
Autism is considered as a neurodevelopmental disorder which affects boys more than girls, in a proportion 4:1 respectively. Autism presents neuroanatomical abnormalities located in the frontal cortex, the amygdala and the cerebellum. Autistic cerebellar postmortem studies have revealed a reduced number of Purkinje cells as well as a reduced Purkinje cell size when compared with non-autistic sub...
متن کامل4 a Deposit of " Domestic " Pottery at Kerma
A recurrent problem in the study of Egyptian ceramics is the distinction between the everyday types of vessels used by the living and the pots chosen as grave goods. Since most of our standard typologies are composed of examples from tomb groups, utilitarian wares are often not represented (Bourriau 1986/87). This distinction is even greater for the cultures of Nubia where we have far fewer cor...
متن کاملInfluence of cutting height and plant spacing on Sesbania (Sesbania aegyptiaca [Poir]) productivity under hyper-arid conditions in El-kharga Oasis, El-Wadi El-Gaded, Egypt
Search for an adapted forage species for feed production under existing marginal lands and harsh conditions is needed to overcome sever feed shortage in Egypt. Sesbania, Sesbania aegyptiaca (Sesbania sesban, L) has shown potential for forage production and being included in grazing systems, especially on marginal lands and salt–affected soils. An experiment was conducted in the summer of 2004 a...
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ژورنال
عنوان ژورنال: Encyclopédie berbère
سال: 2005
ISSN: 1015-7344,2262-7197
DOI: 10.4000/encyclopedieberbere.1329