نتایج جستجو برای: pl
تعداد نتایج: 13159 فیلتر نتایج به سال:
Phospholipid (PL) scramblase is a plasma membrane protein that mediates accelerated transbilayer migration of PLs upon binding Ca2+, facilitating rapid mobilization of phosphatidylserine to the cell surface upon elevation of internal Ca2+. In patients with Scott syndrome, a congenital bleeding disorder related to defective expression of membrane coagulant activity, circulating blood cells show ...
Recent research has shown that learning technology combining adaptive and perceptual learning (PL) methods can improve pattern recognition, transfer, and fluency in complex learning domains (e.g., Mettler & Kellman, 2014). Both classic research and recent work suggest the benefit of paired comparisons in PL, but no previous work has used adaptive techniques to trigger comparisons. We asked whet...
Oral squamous cell carcinoma (OSCC), an aggressive cancer originating in the oral cavity, is one of the leading causes of cancer deaths in males worldwide. This study investigated the antitumor activity and mechanisms of piperlongumine (PL), a natural compound isolated from Piper longum L., in human OSCC cells. The effects of PL on cell proliferation, the cell cycle, apoptosis, senescence and r...
An enzymatic reaction rate of glucose oxidase (GOD) using ferricyanide ion ([Fe(CN)(6)](3-)) as an oxidant significantly increased by the addition of ε-poly-L-lysine (ε-PL). The bimolecular rate constant between GOD and [Fe(CN)(6)](3-) in the presence of ε-PL reached about 10000-fold relative to what it was measured without the ε-PL, and the Michaelis constant decreased. The reaction rate reach...
Here we report two types of defect-induced photoluminescence (PL) blinking behaviors observed in single epitaxial InGaAs quantum dots (QDs). In the first type of PL blinking, the "off" period is caused by the trapping of hot electrons from the higher-lying excited state (absorption state) to the defect site so that its PL rise lifetime is shorter than that of the "on" period. For the "off" peri...
macrocyclops albidus and cyclops vicinus are the two important copepods living in hazar lake.for this study, 50 females for each species were collected. samples were taken between december 1999 andmarch 2000. length (pl), width (pw), and height (ph) of prosome and length (ul) and width (uw) ofurosome were measured in each female and subsequently, the following ratios pl/pw, pl/ph, pw/ph,pl/ul a...
We experimentally investigate the dynamics of spins in GaAs quantum wells under applied electric bias by photoluminescence (PL) measurements excited with circularly polarized light. The bias-dependent circular polarization of PL (P(PL)) with and without magnetic field is studied. The P(PL) without magnetic field is found to be decayed with an enhancement of increasing the strength of the negati...
We wish to obtain information about BP̃LF ; in fact we can study BGF (which is purely homotopy theoretic) and the fibre GF /P̃LF of χ. In Chapter III we construct a map θ : GF /P̃LF−−→(G/PL) , where G/PL is the space studied in Sullivan’s thesis under the name F/PL, and (G/PL) is the space of all unbased maps from F to G/PL. Theorems 5,6 show that, under suitable conditions, θ is almost a homotopy...
Introduction Palmaris longus (PL) is phylogenetically classified as a retrogressive muscle with a long tendon. The length and location of the PL tendon makes it very useful in reconstructive surgery. Agenesis of PL tendon shows strong racial variations. Past studies show absence of 2.8% to 25% depending on ethnicity. Chinese have a low absence rate of 6.0% whilst Caucasian subjects had a high a...
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