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1941por O’Neill, R. A., Maxwell, A. P., Paterson, E. N., Kee, F., Young, I., Hogg, R. E., Cruise, S., Murphy, S., McGuinness, B., McKay, G. J.“…CONCLUSION: Previous studies have reported both increased retinal venular calibre and reduced fractal dimension in association with mild cognitive impairment. …”
Publicado 2021
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1942por Ternifi, Redouane, Wang, Yinong, Gu, Juanjuan, Polley, Eric C., Carter, Jodi M., Pruthi, Sandhya, Boughey, Judy C., Fazzio, Robert T., Fatemi, Mostafa, Alizad, Azra“…Four new morphological features of tumor microvessels, microvessel fractal dimension (mvFD), Murray’s deviation (MD), bifurcation angle (BA), and spatial vascularity pattern (SVP) as well as initial biomarkers were extracted and analyzed, and the results correlated with pathology. …”
Publicado 2022
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1943por García Martínez, Constantino Antonio, Otero Quintana, Abraham, Vila, Xosé A, Lado Touriño, María José, Rodríguez-Liñares, Leandro, Rodríguez Presedo, Jesús María, Méndez Penín, Arturo José“…The book discusses all the basic HRV topics, including the physiological contributions to HRV, clinical applications, HRV data acquisition, HRV data manipulation and HRV analysis using time-domain, frequency-domain, time-frequency, nonlinear and fractal techniques. Detailed examples based on real data sets are provided throughout the book to illustrate the algorithms and discuss the physiological implications of the results. …”
Publicado 2017
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1944“…The larger the loading area, the higher the crack fractal dimension, the crack entropy, and the penetration rate. …”
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1945“…Third, it gives more extractable network-level (density, connectivity, fractal dimension) and segment-level (length, diameter, tortuosity) 3D morphometric descriptors and how to statistically analyze them. …”
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1946“…This review highlights the means by which we scientifically measure variation, including analyses of overall variation (time domain analysis, frequency distribution, spectral power), frequency contribution (spectral analysis), scale invariant (fractal) behaviour (detrended fluctuation and power law analysis) and regularity (approximate and multiscale entropy). …”
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1947por Gao, Yuan, Xu, Lijun, He, Ning, Ding, Yuchuan, Zhao, Wenbo, Meng, Tingting, Li, Ming, Wu, Jiaqi, Haddad, Yazeed, Zhang, Xuxiang, Ji, Xunming“…Caliber, tortuosity, and fractal dimension, as three commonly used retinal vascular parameters, are not only the reflection of structural changes in the retinal microcirculation but also capture the branching pattern or density changes of the retinal microvascular network. …”
Publicado 2023
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1948“…Electron microscopy, moisture content analysis, and fractal dimensional analysis were employed to characterize the microspheres. …”
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1949“…Digital images showing pit-and-fissure discoloration in 100 teeth of 19 patients were analyzed to obtain the fractal dimension (FD) and the proportion of the area of pit-and-fissure discoloration to the area of occlusal surface (PA). …”
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1950“…Human observers viewed highly distinguishable, fractal objects and learned to choose for each object the one motor response (of four) that was rewarded. …”
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1951“…This analysis retrieves the characteristics of the time series and its associated measures with an adequate methodology followed by an appropriate statistical assessment of these measures (e.g., spectral power or fractal dimension). As a step towards such a statistical assessment, we present a data resampling approach. …”
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1952“…We note that the exponent is associated with the fractal-like scaling in cumulative mortality rate. …”
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1953“…Finally, a noise-free, spatial resolution-enhanced image is generated by a fractal coding-based denoising and downscaling method. …”
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1954“…A technique for determining three measureable parameters (the fractal dimension, the vessel length fraction, and the vessel area density) is proposed and validated. …”
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1955“…A target, consisting of a Gabor patch, was preceded by a cue that was either a novel or a familiar fractal image. Participants had to indicate whether the Gabor stimulus was vertically oriented or slightly tilted. …”
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1956“…We use the technique of random coefficients, which forcefully adjusts the coefficients with −1 and 1. The fractal dimension is used to determine the order of the CA-AR model. …”
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1957por Stradner, Jürgen, Thenius, Ronald, Zahadat, Payam, Hamann, Heiko, Crailsheim, Karl, Schmickl, Thomas“…In this paper we demonstrate and compare a set of bio-inspired algorithms that are used to control the collective behavior of swarms and modular systems: BEECLUST, AHHS (hormone controllers), FGRN (fractal genetic regulatory networks), and VE (virtual embryogenesis). …”
Publicado 2013
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1958“…Due to a complete absence of bulk nucleation in this system, crystal growth is resumed upon reheating to 970°C and fractal growth with the c-axis tilted by about 45° from the main growth direction is observed. …”
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1959“…They have a well-defined dendrite fractal structure with a pronounced trunk and highly ordered branches. …”
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1960“…It is possible to differentiate and clearly quantify the SCM shape, size, scalloped border, and variegated pigmentation using computerized morphometry as well as fractal and multifractal methods.…”
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