Results 91 to 100 of about 3,160,245 (302)

On efficiency of the ratio estimator

Exact efficiency, Finite population, Midzuno Scheme, Ratio estimator, Simple random sampling without replacement,
Arijit Chaudhuri, Arun Adhikary
core   +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, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

A chain ratio exponential type estimator in two-phase sampling using auxiliary information

Statistica, 2014
This paper advocates the problem of estimating the population mean of the study variable y using the information on two auxiliary variables x and z. We have suggested the family of chain ratio exponential type estimators in two-phase (or double) sampling.
Rohini Yadav, Lakshmi N. Upadhyaya, Housila P. Singh, S. Chatterjee   +3 more
doaj   +1 more source

Gradient Estimation for Ratios [PDF]

1991 Winter Simulation Conference Proceedings., 1991
Peter W. Glynn, Pierre L'Ecuyer, Michel Adès   +2 more
openaire   +2 more sources

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, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

A Hybrid Estimator for the Population Mean in Stratified Two-Stage Sampling under Random Missing Values [PDF]

The Egyptian Statistical Journal
Accurate estimation of population parameters is central to survey sampling, especially under complex designs involving stratification and multistage selection.
P.I Iorlaha, T. Uba, S. C. Nwaosu, A. J. Ikughur   +3 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Approximating the Distribution of the Instrumental Variables Estimator when the Concentration Parameter is Small. [PDF]

This paper presents a new approximation to the exact sampling distribution of the instrumental variables estimator in simultaneous equations models. It differs from many of the approximations currently available, Edgeworth expansions for example, in that
C. L. Skeels, D. S. Poskitt
core  

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Randomised Pseudolikelihood Ratio Change Point Estimator in Garch Models

Journal of Mathematics, 2020
In this paper, a randomised pseudolikelihood ratio change point estimator for GARCH model is presented. Derivation of a randomised change point estimator for the GARCH model and its consistency are given.
George Awiakye-Marfo, Joseph Mung’atu, Patrick O. Weke   +2 more
doaj   +1 more source