Results 171 to 180 of about 3,864,284 (197)

PCA in studying coordination and variability: a tutorial

Clinical Biomechanics, 2004
To explain and underscore the use of principal component analysis in clinical biomechanics as an expedient, unbiased means for reducing high-dimensional data sets to a small number of modes or structures, as well as for teasing apart structural (invariant) and variable components in such data sets.The method is explained formally and then applied to ...
Daffertshofer, A, Lamoth, CJC, Meijer, OG, Beek, PJ   +3 more
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Study of variability effect on decoding

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
Trellis codes (including convolutional codes and turbo codes) have been widely used in DS-CDMA systems for their good performance. In this paper we study the performance of convolutional codes and turbo codes in an environment where E/sub b//N/sub 0/ changes sinusoidally. We study four cases of both scenarios.
Jian Gu, Dacheng Yang
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Global study of variability in olfactory sensitivity.

Behavioral Neuroscience, 2020
Variability in human olfactory sensitivity has been attributed to individual-level factors such as genetics, age, sex, medical history of infections and trauma, neurogenerative diseases, and emotional disorders. Scarce evidence exists on the cross-cultural variation in olfactory sensitivity.
Anna Oleszkiewicz, Rafieh Alizadeh, Aytug Altundag, Ben Chen, Alessandra Corrai, Rachele Fanari, Mohammad Farhadi, Neelima Gupta, Rebecca Habel, Robyn Hudson, Jessica L. Hughes, Akshita Joshi, Seyed Kamran Kamrava, Curtis Luckett, Mehmet K. Mahmut, Carla Masala, Eri Mori, Robert Pellegrino, Raffaella Piras, Katarzyna Resler, Alejandro Rivas-Castro, Supreet Saluja, Sanskriti Sharma, Hajime Shimmura, Graciela M. Soler, Michał Mikołaj Stefańczyk, Zhifu Sun, Divesh Thaploo, Yongxiang Wei, Xiaoguang Yan, Thomas Hummel   +30 more
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Studies on Tumor Variability

Oncology, 2009
Morphological and cytogenetical studies of H₁₀Z tumor in various periods of growth in animals emphasize its heterogenous constitution formed by two groups of cell types, i.e. (1) ‘primary cell types’, the main constituents of tumor structure, well defined morphologically and genetically, which are gradually selected during tumor ...
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Effects of Censored Variables on Family Studies

Behavior Genetics, 1997
In the present paper effects of censored variables on estimates of genetic and environmental influences were studied. Analytic results showed with 50% censoring, about 15-20% of the variance may be attributed to the wrong source and that this amount increases rapidly with more than 70% censoring.
van den Oord, E.J.C.G., Rowe, D.C.
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A Study of Climatic Variability

Monthly Weather Review, 1980
Abstract An analysis of variance of the 1000-500 mb thickness field is performed to investigate climatic variability from 1949 to 1975. The thickness field and its variance, averaged over the Northern Hemispheric cap from 25°N latitude to the pole, are obtained and the resulting time series are analyzed for their trends and interrelationships. Analysis
G. J. Boer, K. Higuchi
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A study of the variability of precipitation

Eos, Transactions American Geophysical Union, 1938
A knowledge of the variability of precipitation‐averages for periods of various lengths is essential for the correct use of rainfall‐data. First, it must be known what length of record is needed to yield an average which may be projected into the future within tolerable limits of error. Second, the magnitude and frequency of departures from the average—
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The Need to Reduce Variability in the Study of Blood Pressure Variability

American Journal of Kidney Diseases, 2023
Mario Funes, Hernandez, Tara I, Chang
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