Results 251 to 260 of about 38,249,777 (279)

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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STUDIES ON VARIABILITY IN CHILLI

Madras Agricultural Journal, 1993
Genetic variability for yield and certain fruit characters of chilli was studied. The variances and coefficients of variation indicated the influence of environment on the characters. The estimates of genotypic coefficient of variation, heritability and genetic advance revealed that the length of fruit, weight of dry fruit and number of seeds per fruit
NATARAJAN S, GOMATHINAYAGAM P, DAVID P.M.M   +2 more
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A Study of Coder Variability

Applied Statistics, 1979
Survey questionnaires often contain open‐ended questions, for which interviewers are required to record respondents' replies verbatim. Errors can arise in coding these replies in preparation for statistical analysis. The paper reports the results of an experiment examining the levels of reliability attained by six professional coders in making ...
Graham Kalton, Richard Stowell
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