Results 121 to 130 of about 379,670 (274)
Bimodal and Multimodal Extensions of the Normal and Skew Normal Distributions
Revstat Statistical JournalA transformation of a density function is introduced to derive two families of continuous densities, the first symmetric and the second not-necessarily symmetric, exhibiting both unimodality and bimodality.
Emilio Gómez-Déniz +2 more
doaj +1 more source
Moment characterization of higher-order risk preferences [PDF]
It is often said that prudence and temperance play key roles in aversion to negative skewness and kurtosis, respectively. This paper puts a new perspective on these relationships and presents a characterization of higher-order risk preferences in terms ...
Sebastian Ebert
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Advanced Science, EarlyView.The authors employed widely targeted metabolomics, microbial amplicon sequencing, and fermentation assays to investigate the microbiome 's influence on PCRC 's (pericarp of Citrus reticulata ' Chachi ') flavonoid profile over 0–19 years of storage. Based on the correlation analysis, solid‐state and liquid‐state fermentation, and catalytic activity ...
Jianmu Su +10 more
wiley +1 more source
Skewness and Location of Distributions of Wage Change Rates in the Presence of Downward Nominal Wage Rigidity [PDF]
The skewness-location approach to the analysis of downward nominal wage rigidity in micro data judges the existence of rigidity on the basis of estimated functional relationships between measures of location and of skewness of the distributions of ...
Knoppik, Christoph
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Advanced Science, EarlyView.Aldosterone‐producing adenomas (APAs) develop via two distinct paths: directly from adrenal zona glomerulosa (zG) cells, or stepwise from zG cells through aldosterone‐producing micronodules (APMs) before progressing to APAs. Advanced single‐cell and spatial analyses identified distinct cell states linked to oxidative stress and cell–cell interactions ...
Zhuolun Sun +7 more
wiley +1 more source
An Alternative Conditional Asymmetry Specification for Stock Returns [PDF]
The paper advances the log-generalized gamma distribution as a suitable generator of conditional skewness. Based on the NYSE composite daily returns an asMA-asQGARCH model along with skewness dynamics is estimated.
Kurt Brännäs, Niklas Nordman
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Advanced Science, EarlyView.ABSTRACT Cancer‐associated fibroblasts (CAFs) are the predominant stromal components within the tumor microenvironment (TME), playing multifaceted roles in cancer progression through dynamic interactions with neoplastic and immune cells. Emerging evidence has revealed remarkable heterogeneity and plasticity of CAFs, which originate from diverse ...
Rujiao Liu +4 more
wiley +1 more source
Kimball's prudence and two-fund separation as determinants of mutual fund performance evaluation [PDF]
We consider investors with mean-variance-skewness preferences who aim at selecting one out of F different funds and combining it optimally with the riskless asset and direct stock holdings.
Breuer, Wolfgang, Gürtler, Marc
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Advanced Science, EarlyView.Dry soft Ti3C2Tx MXene electroencephalography (EEG) electrodes provide low impedance (2.1 ± 1.8 kΩ at 10 Hz), long‐term stability, and enable safe simultaneous EEG and transcranial magnetic stimulation (TMS). Across scalp sites, hair types, and recording paradigms, including steady state visual evoked potentials (SSVEP), clinical EEG, and mobile EEG ...
Sneha Shankar +17 more
wiley +1 more source
Skewness by splitting the scale parameter [PDF]
There are several possibilities to introduce skewness into a symmetric distribution. One of these procedures applies two dfferent parameters of scale - with possibly different weights - to the positive and the negative part of a symmetric density. Within
Fischer, Matthias J., Klein, Ingo
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