Results 71 to 80 of about 7,963,480 (325)

MULTIVARIATE ANALYSIS IN VECTOR TIME SERIES [PDF]

This paper reviews the applications of classical multivariate techniques for discrimination, clustering and dimension reduction for time series data. It is shown that the discrimination problem can be seen as a model selection problem.
Daniel Peña, Pedro Galeano
core  

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Complexity Analysis of Environmental Time Series

Entropy
Small, forested catchments are prototypes of terrestrial ecosystems and have been studied in several disciplines of environmental science over several decades.
Holger Lange, Michael Hauhs
doaj   +1 more source

Liquid biopsy epigenetics: establishing a molecular profile based on cell‐free DNA

Molecular Oncology, EarlyView.
Cell‐free DNA (cfDNA) fragments in plasma from cancer patients carry epigenetic signatures reflecting their cells of origin. These epigenetic features include DNA methylation, nucleosome modifications, and variations in fragmentation. This review describes the biological properties of each feature and explores optimal strategies for harnessing cfDNA ...
Christoffer Trier Maansson, Anders Lade Nielsen, Boe Sandahl Sorensen   +2 more
wiley   +1 more source

Univariant time series analysis applied to ozone forecasting in the city of Cali, Colombia

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
The modelling results of tropospheric ozone concentration in the urban area of Cali, Colombia, suitable for short term forecasting, are presented. Results were obtained by using an univariate time series analysis.
Mauricio Jaramillo Ayerbe, Daniel Enrique González Gómez, María Eugenia Núñez Cabrera, Gloria Esperanza Portilla, Jesús Heriberto Lucio García   +4 more
doaj   +1 more source

Wavelet analysis and scaling properties of time series

, 2005
We propose a wavelet based method for the characterization of the scaling behavior of non-stationary time series. It makes use of the built-in ability of the wavelets for capturing the trends in a data set, in variable window sizes.
Manimaran, P., Panigrahi, Prasanta K., Parikh, Jitendra C.   +2 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Time Series Analysis Using Composite Multiscale Entropy

Entropy, 2013
Multiscale entropy (MSE) was recently developed to evaluate the complexity of time series over different time scales. Although the MSE algorithm has been successfully applied in a number of different fields, it encounters a problem in that the ...
Kung-Yen Lee, Chun-Chieh Wang, Shiou-Gwo Lin, Chiu-Wen Wu, Shuen-De Wu   +4 more
doaj   +1 more source

Behavioural Study of Market Arrivals and Prices of Tomato in Major Markets of Tamil Nadu - A Time Series Analysis [PDF]

, 2020
C. Tamilselvi, G. Mohan Naidu, B. Ramana Murthy, S. Rajeswari   +3 more
openalex   +1 more source

Bayesian time series analysis of terrestrial impact cratering

, 2011
Giant impacts by comets and asteroids have probably had an important influence on terrestrial biological evolution. We know of around 180 high velocity impact craters on the Earth with ages up to 2400Myr and diameters up to 300km.
Alvarez, Alvarez, Alvarez, Bahcall, Bailer-Jones, Berger, Berger, Broadbent, C. A. L. Bailer-Jones, Chang, Christensen, Davis, Deutsch, Gardner, Gregory, Grieve, Grieve, Grieve, Grieve, Hallam, Heisler, Jaynes, Jeffreys, Jetsu, Kass, Le Feuvre, Lyytinen, Mackay, Marden, Matsumoto, McEwen, Montanari, Napier, Napier, Rampino, Shoemaker, Shuter, Stigler, Stigler, Stothers, Torbett, Wickramasinghe, Yabushita, Yabushita, Yabushita   +44 more
core   +1 more source