Results 81 to 90 of about 2,151,663 (314)
A Second-Order Investigation of Asymptotic Ancillarity
The Annals of Statistics, 1985 The paper deals with approximate ancillarity as discussed by \textit{B. Efron} and \textit{D. V. Hinkley} [Biometrika 65, 457-487 (1978; Zbl 0401.62002)]. In the multivariate i.i.d. case the second-order Edgeworth expansion of the MLE given a normalized version of the second derivative of the log-likelihood at its maximum is derived, which is a ...
openaire +3 more sources
Polytomous Latent Scales for the Investigation of the Ordering of Items [PDF]
Psychometrika, 2011 AbstractWe propose three latent scales within the framework of nonparametric item response theory for polytomously scored items. Latent scales are models that imply an invariant item ordering, meaning that the order of the items is the same for each measurement value on the latent scale.
Ligtvoet, R. +3 more
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Reduced-order modelling for high-speed aerial weapon aerodynamics [PDF]
, 2008 In this work a high-fidelity low-cost surrogate of a computational fluid dynamics analysis tool was developed. This computational tool is composed of general and physics- based approximation methods by which three dimensional high-speed aerodynamic ...
Mifsud, Michael
core
What drives security issuance decisions: Market timing, pecking order, or both? [PDF]
, 2012 We study market timing and pecking order in a sample of debt and equity issues and share repurchases of Canadian firms from 1998 to 2007. We find that only when firms are not financially constrained is there evidence that firms issue (repurchase) equity ...
Dong, M. +5 more
core +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
Early Capture of Attention by Self-Face: Investigation Using a Temporal Order Judgment Task
i-Perception, 2021 Earlier work on self-face processing has reported a bias in the processing of self-face result in faster response to self-face in comparison to other familiar and unfamiliar faces (termed as self-face advantage or SFA).
Aditi Jublie, Devpriya Kumar
doaj +1 more source
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
Investigation of approximation order of invariant differential operators on movable irregular quadrangular grid [PDF]
Компьютерные исследования и моделирование, 2011 The a priori analysis of approximation of magnetohydrodynamic equations on irregular quadrangular analysis was performed. The values of coefficients wich determine the misalignment norm for difference analogs of operators gradient and divergence were ...
Natalia Alexandrovna Zavyalova
doaj +1 more source
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
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