نتایج جستجو برای: a intermedium
تعداد نتایج: 13431959 فیلتر نتایج به سال:
Power Factor Preregulators (PFP) have been used to improve input current waveform of off-line power supplies. There are two major approaches in implementing control circuits in PFP: the multiplier approach and the voltage-follower approach. The simplest one is the voltage-follower approach because the converter operates in discontinuous conduction mode (DCM), and only one loop control is requir...
Intermediate wheatgrass (Thinopyrum intermedium; IWG) is a perennial grass under development as grain and forage crop. Although IWG known for its ability to take up nitrate improve water quality, seasonal nitrogen (N) demand uptake by not well known. We measured shoot, root, production, tissue N concentration, soil mineral at multiple plant growth stages in 1- 2-year-old stands fertilized with ...
Title of Dissertation: IDENTIFICATION, LIFE HISTORY, AND ECOLOGY OF PERITRICH CILIATES AS EPIBIONTS ON CALANOID COPEPODS IN THE CHESAPEAKE BAY Laura Roberta Pinto Utz, Doctor of Philosophy, 2003 Dissertation Directed by: Professor Eugene B. Small Department of Biology Adjunct Professor D. Wayne Coats Department of Biology and Smithsonian Environmental Research Center Epibiotic relationships are...
D-Amino acid amidase (DAA) from Ochrobactrum anthropi SV3 catalyzes D-stereospecific hydrolysis of amino acid amides. DAA has attracted attention as a catalyst for the stereospecific production of D-amino acids, although the mechanism that drives the reaction has not been clear. Previously, the structure of DAA was classified into two types, a substrate-bound state with an ordered Omega loop, a...
The continuously growing rodent incisor is an emerging model for the study of renewal of mineralized tissues by adult stem cells. Although the Bmp, Fgf, Shh, and Wnt pathways have been studied in this organ previously, relatively little is known about the role of Notch signaling during incisor renewal. Notch signaling components are expressed in enamel-forming ameloblasts and the underlying str...
Nontuberculous mycobacteria (NTMs) are ubiquitous and are being increasingly reported as human opportunistic infection. Cutaneous infection caused by mixed NTM is extremely rare. We encountered the case of a 46-year-old female, who presented with multiple discharging sinuses over the lower anterior abdominal wall (over a previous appendectomy scar) for the past 2 years. Microscopy and culture o...
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