Spectral Analysis
نویسندگان
چکیده
منابع مشابه
Cloning, expression, and spectral analysis of mouse betatrophin
Background: Betatrophin, a novel secretory protein from liver and fatty tissues, is believed to be involved in lipid and glucose metabolism. However, its precise physiological role remains unclear. Here, we report the cloning, expression, and purification steps of mouse betatrophin in a prokaryotic system, followed by its structural analysis. Methods: Specific cloning primers were...
متن کاملSpectral analysis
cov(Xi, Xj) := E(Xi − E(Xi))(Xj − E(Xj)), and cov(X) is the d×d symmetric positive semi-definite (psd) matrix whose (i, j)-th entry is cov(Xi, Xj). For now, we’ll define quantities and procedures with respect to cov(X), even though typically in practice, cov(X) can only be estimated (and we’ll come back to estimation issues later). One may also view X as being uniformly distributed over the dat...
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Spectral imaging requires rapid analysis of spectra associated with each pixel. A rapid algorithm has been developed that uses iterative matrix inversions to solve for the absorption spectra of a tissue using a lookup table for photon pathlength based on numerical simulations. The algorithm uses tissue water content as an internal standard to specify the strength of optical scattering. An exper...
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Conventional spectrum estimates of both the smoothedperiodogram and autoregressive variety lack robustness toward outliers in the original data. Outliers and other local perturbations are modeled by non-Gaussian additive noise, which is zero most of the time. Correspondingly, the lack of robustness of the conventional estimates of the spectrum manifest not only inflated variances but also damag...
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In neuropsychiatric disorders such as schizophrenia or depression, there is often a disruption in the way that regions of the brain communicate with one another. To facilitate understanding of network-level communication between brain regions, we introduce a novel model of multisite low-frequency neural recordings, such as local field potentials (LFPs) and electroencephalograms (EEGs). The prop...
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ژورنال
عنوان ژورنال: Impact
سال: 2019
ISSN: 2058-802X,2058-8038
DOI: 10.1080/2058802x.2019.1589771