Short communication. The effect of freeze-thaw cycles on soil aggregate stability in different salinity and sodicity conditions
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the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
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The effect of freeze/thaw cycles on the stability of compounds in DMSO.
A diverse set of 320 compounds from the Procter & Gamble Pharmaceuticals organic compound repository was prepared as 20-mM DMSO solutions and stored at 4 degrees C under argon in pressurized canisters to simulate a low-humidity environment. The plates were subjected to 25 freeze/thaw cycles while being exposed to ambient atmospheric conditions after each thaw to simulate the time and manner by ...
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INTRODUCTION Optimal storage of serum specimens in central laboratories for a long period for multicenter reference interval studies, or epidemiologic studies remains to be determined. We aimed to examine the analytical stability of chemistry analytes following numerous freeze-thaw and long-term storage. MATERIALS AND METHODS Serum samples were obtained from 15 patients. Following baseline me...
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15 صفحه اولthe effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill
this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...
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ژورنال
عنوان ژورنال: Spanish Journal of Agricultural Research
سال: 2007
ISSN: 2171-9292,1695-971X
DOI: 10.5424/sjar/2007053-267