نتایج جستجو برای: fcs
تعداد نتایج: 2518 فیلتر نتایج به سال:
In this paper, an efficient short-time Fourier analysis method for the quasi-periodic signals is proposed via an optimal fixed-lag finite impulse response (FIR) smoother approach using a receding horizon scheme. In order to deal with time-varying Fourier coefficients (FCs) of quasi-periodic signals, a state space model including FCs as state variables is augmented with the variants of FCs. Thro...
The mathematical concept of fluorescence correlation spectroscopy (FCS)1 (1) emerged from quasi-elastic light scattering (QELS) spectroscopy (2) in the early 1970s. Compared to light scattering, the enhanced sensitivity of fluorescence to changes in molecular structure, chemistry, and local environment makes FCS a superior analytical tool for chemical kinetics studies (1, 3-5). The primary moti...
Lindqvist, Anders, Ina Nordström, Ulf Malmqvist, Patrik Nordenfelt, and Per Hellstrand. Long-term effects of Ca21 on structure and contractility of vascular smooth muscle. Am. J. Physiol. 277 (Cell Physiol. 46): C64–C73, 1999.—Culture of dispersed smooth muscle cells is known to cause rapid modulation from the contractile to the synthetic cellular phenotype. However, organ culture of smooth mus...
A method for extracting force constants FCs from first principles is introduced. In principle, provided that forces are accurate enough, it can extract harmonic as well as anharmonic FCs up to any neighbor shell. Symmetries of the FCs as well as those of the lattice are used to reduce the number of parameters to be calculated. The results are illustrated for the case of the Lennard-Jones potent...
Background: Simplified and reliable tools for individual and household diet quality assessment have been found helpful to reduce cost of the dietary survey. The main objective of this study was to determine the household’s diet profile in the Centre-West Region of Burkina Faso. Methods: A cross-sectional study was conducted on household food consumption using the last seven days recall. Food co...
The effects of heat treatment and concentration of fish serum (FS) on cell growth and human granulocyte-macrophage colony-stimulating factor (hGM-CSF) production in an adhesion culture of recombinant Chinese hamster ovary (CHO) cells, DR1000L4N, were investigated. The addition of heat treated FS instead of non-heat-treated FS improved cell growth in terms of cell density, which reached 60% that...
The flow cytometry data file standard provides the specifications needed to completely describe flow cytometry data sets within the confines of the file containing the experimental data. In 1984, the first Flow Cytometry Standard format for data files was adopted as FCS 1.0. This standard was modified in 1990 as FCS 2.0 and again in 1997 as FCS 3.0. We report here on the next generation flow cy...
The classical concept that amyotrophic lateral sclerosis (ALS) is a degenerative disorder characterized by the loss of upper and lower motor neurons is agreed. However, more and more studies have suggested the involvement of some extra-motor regions. The aim of this study is to investigate the frequency-related alteration pattern of intrinsic functional connectivity strength (FCS) at the voxel-...
PURPOSE Fibrocytes (FC) are bone marrow-derived progenitor cells that are more abundant and infiltrate the thyroid and orbit in Graves orbitopathy (GO). FCs express high levels of thyrotropin receptor (TSHR) and insulin-like growth factor-1 receptor (IGF-1R). These receptors are physically and functionally associated, but their role in GO pathogenesis is not fully delineated. Treatment of FCs w...
Single plane illumination microscopy based fluorescence correlation spectroscopy (SPIM-FCS) is a new method for imaging FCS in 3D samples, providing diffusion coefficients, transport, flow velocities and concentrations in an imaging mode. SPIM-FCS records correlation functions over a whole plane in a sample, which requires array detectors for recording the fluorescence signal. Several types of ...
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