منابع مشابه
Transcoronary concentration gradients of circulating microRNAs.
BACKGROUND Circulating levels of microRNA (miR) have been proposed as biomarkers for cardiovascular disease. To identify the heart as a potential source for miRs released into the circulation, we measured concentration gradients across the coronary circulation for muscle-enriched (miR-133a, miR-499, miR-208a), vascular (miR-126, miR-92a), leukocyte-related (miR-155), and platelet-enriched (miR-...
متن کاملthe effects of error correction methods on pronunciation accuracy
هدف از انجام این تحقیق مشخص کردن موثرترین متد اصلاح خطا بر روی دقت آهنگ و تاکید تلفظ کلمه در زبان انگلیسی بود. این تحقیق با پیاده کردن چهار متد ارائه اصلاح خطا در چهار گروه، سه گروه آزمایشی و یک گروه تحت کنترل، انجام شد که گروه های فوق الذکر شامل دانشجویان سطح بالای متوسط کتاب اول passages بودند. گروه اول شامل 15، دوم 14، سوم 15 و آخرین 16 دانشجو بودند. دوره مربوطه به مدت 10 هفته ادامه یافت و د...
15 صفحه اولElevated CO 2 concentration has independent effects on expansion rates and thickness of soybean leaves across light and nitrogen gradients
Introduction The rate and extent of leaf thickness and area Leaves which develop at elevated CO2 concentrations are development are important determinants of whole often thicker than those on ambient 2 plants. In a plant photosynthetic capacity. The interactive effects study of four Populus clones, Radoglou and Jarvis (1990) of photon flux density (PFD), nitrogen supply and CO 2 found increases...
متن کاملCell adhesion and focal contact formation on linear RGD molecular gradients: study of non-linear concentration dependence effects.
UNLABELLED Cell adhesion onto bioengineered surfaces is affected by a number of variables, including the former substrate derivatization process. In this investigation, we studied the correlation between cell adhesion and cell-adhesive ligand surface concentration and organization due to substrate modification. For this purpose, Arg-Gly-Asp (RGD) gradient surfaces were created on poly(methyl me...
متن کاملComments on Sonic Cannons
Three types of sonic cannons: Sonic cannons have had three incarnations over the years. The first implementation uses very low frequency sounds (essentially in the octave below the lower note on a piano keyboard) that have a significant vibro-tactile, or " whole body " response. This has been well studied in the literature and can result in nausea, a feeling of fullness in the chest and even he...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1957
ISSN: 0001-4966
DOI: 10.1121/1.1918799