منابع مشابه
Secondary Reduction of Immunity
Deficiences imunitaire acquises Les , deficits nnmumtaires pathologiques af systeme des phagocytes, l'immunite a mechation_ cellulare :t la synthese des im Illfnoglobulmes so1t separement, soit conJom temen t. La manifestation .clinique de ces deficits est la ,frequence _des mfections bacterielles, virales et mycotiques. Le triteJent s deficits immunitaire a part la therap1e antnnfectieu...
متن کاملSelective Catalytic Reduction of CuO/SiO2 Nano-composites towards NO Reduction in Gas-phase
The xerogel samples were prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS) by the sol-gel method. In this investigation, a new molar ratio of H2O/TEOS was determined to be 11.7. Also, the necessary amounts of tri-hydrated copper nitrate and penta-hydrated copper sulfate were added to the solution in such a manner that the concentration of the copper oxide in final solut...
متن کاملRe-evaluation of Scrapers Reduction Model Using Geometric Index of Reduction (Mar-Tarik Middle Paleolithic Assemblages)
Paleolithic lithic assemblages are traditionally described on the bases of presence of a variety of tool types(typology) and of different knapping technologies. In this study we tried to investigate whether the presence ofdifferent groups of scrapers in the Mar-Tarik site assigned to the Middle Paleolithic represent specific function orjust different stages of the reduction process and constant...
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ژورنال
عنوان ژورنال: Communications of the ACM
سال: 1975
ISSN: 0001-0782,1557-7317
DOI: 10.1145/361227.361234