نتایج جستجو برای: homogenizing method
تعداد نتایج: 1630721 فیلتر نتایج به سال:
Long-term bacterial endosymbionts typically exhibit reduced genomes, lack genes encoding recombination functions and transposable elements, such as insertion sequences (ISs). In sharp contrast, I found that ISs constitute 2.4% of the genome of the obligate mutualistic endosymbiont Wolbachia wBm. Although no IS copy is transpositionally functional, I show that ISs persist in wBm because of frequ...
A modification of the technique of Minasian and Jabara (1) is described for obtaining a higher yield of virgin rat mammary epithelial cell nuclei of greater purity. Modifications include the introduction of 0.32 M sucrose into the mammary epithelial cell-homogenizing medium and the addition of 0.05% Triton X-100 for 30 min to the crude nuclear pellet. The isolated nuclei were judged to be of ac...
In this study, the residual strain was evaluated for human saphenous vein. Rings of the vein from four donors (two male and two female; age 62±5 years) were radially cut to obtain the opening angle (α) of the tissue. It was found that the average opening angle is 45°±18° (mean±SD). Then, the intraluminal distribution of circumferential stress was computed for one donor in order to verify the un...
Proper preparation and stability evaluation of the nanolubricant shall be established when applying nanoparticle dispersion technique in a two-phase system. The ensures maximum benefit gained from nanoparticles specified Polyvinyl ether (PVE). In this study, TiO2/PVE was prepared using two methods physical homogenization: high-speed homogenizer (HSH) ultrasonication bath. HSH used time up to 30...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
abstract objectives gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this type of treatment is very precise and controlled that is done in 54 steps in 3 speech situations consisted of monologue, reading and conversation. this study aimed to examine the effects of gilcu treatment method on reduction of speech dysfluency of school-age...
We consider the problem of homogenizing the Maxwell equations for periodic composites. The analysis is based on Bloch-Floquet theory. We calculate explicitly the reflection coefficient for a half space and derive and implement a computationally efficient continued-fraction expansion for the effective permittivity. Our results are illustrated by numerical computations for the case of two-dimensi...
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