Results 81 to 90 of about 791,940 (315)
Vertex method for computing functions of fuzzy variables
Fuzzy Sets and Systems, 1987 The calculation of (fuzzy) values of functions of fuzzy variables is considered. A so-called vertex method is proposed which is based on interval analysis, discretization, extension principle and alfa-cuts of the respective fuzzy sets. The method is easily implementable, and yields normal fuzzy sets, without widening of the resulting function value set.
Dong, Weimin, Shah, Haresh C.
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ESTIMATION OF A SEMIPARAMETRICIGARCH(1,1) MODEL [PDF]
We propose a semiparametric IGARCH model that allows for persistence invariance but also allows for more flexible functional form. We assume that thedifference of the squared process is weakly stationary.
Woocheol Kim, Oliver Linton
core
The mRMR variable selection method: a comparative study for functional data [PDF]
, 2015 The use of variable selection methods is particularly appealing in statistical problems with functional data. The obvious general criterion for variable selection is to choose the ‘most representative’ or ‘most relevant’ variables.
Torrecilla, J.L. +5 more
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FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Topological methods in the theory of functions of a complex variable [PDF]
Bulletin of the American Mathematical Society, 1947 The description for this book, Topological Methods in the Theory of Functions of a Complex Variable. (AM-15), will be forthcoming.
Morse, Marston, Heins, Maurice
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Robust forecasting of mortality and fertility rates: a functional data approach [PDF]
We propose a new method for forecasting age-specific mortality and fertility rates observed over time. Our approach allows for smooth functions of age, is robust for outlying years due to wars and epidemics, and provides a modelling framework that is ...
Rob J. Hyndman, Md. Shahid Ullah
core
A Multiscale Approach for Statistical Characterization of Functional Images [PDF]
, 2009 Increasingly, scientific studies yield functional image data, in which the observed data consist of sets of curves recorded on the pixels of the image.
Antoniadis, Anestis +2 more
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pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
A new concept of q-calculus with respect to another function
Journal of Innovative Applied Mathematics and Computational SciencesIn this paper, we present an approach to quantum calculus and its applications through a functional method. This approach enables the exploration of the number-theoretic properties of q-calculus in a functional framework, facilitating the modification ...
Shrinath Manjarekar, Hossein Jafari
doaj +1 more source
The human gut microbiome across the life course
FEBS Letters, EarlyView.Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero +4 more
wiley +1 more source