Results 21 to 30 of about 544,979 (256)

Continuity correction of Pearson’s chi-square test in 2x2 Contingency Tables: A mini-review on recent development

open access: yesEpidemiology, Biostatistics and Public Health, 2019
The Pearson’s chi-square test represents a nonparametric test more used in Biomedicine and Social Sciences, but it introduces an error for 2x2 contingency tables, when a discrete probability distribution is approximated with a continuous distribution ...
Nicola Serra   +3 more
doaj   +1 more source

Chebyshev–Edgeworth-Type Approximations for Statistics Based on Samples with Random Sizes

open access: yesMathematics, 2021
Second-order Chebyshev–Edgeworth expansions are derived for various statistics from samples with random sample sizes, where the asymptotic laws are scale mixtures of the standard normal or chi-square distributions with scale mixing gamma or inverse ...
Gerd Christoph, Vladimir V. Ulyanov
doaj   +1 more source

On Corrections to the Chi-Squared Distribution

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1958
Summary The method of characteristic functions is used to obtain a correction to the usual approximation to the distribution of the chi-squared goodness of fit criterion for a multinomial distribution.
openaire   +2 more sources

Continuity correction of Pearson’s chi-square test in 2x2 Contingency Tables: A mini-review on recent development

open access: yesEpidemiology, Biostatistics and Public Health, 2022
The Pearson’s chi-square test represents a nonparametric test more used in Biomedicine and Social Sciences, but it introduces an error for 2x2 contingency tables, when a discrete probability distribution is approximated with a continuous distribution ...
Nicola Serra   +3 more
doaj  

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

Compedium model using frequency / cumulative distribution function for receptors of survival proteins: Epidermal growth factor and insulin [PDF]

open access: yesNetwork Biology, 2016
In this paper I used the frequency and cumulative distribution functions to make a best model of the receptors of the survival proteins i.e. Epidermal Growth Factor Receptor (EGFR) and Insulin Receptor (IRS) using ten concentrations combination of TNF ...
Shruti Jain
doaj  

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

Statistical distribution of rainfall in Uttarakhand, India

open access: yesApplied Water Science, 2017
Understanding of rainfall is an important issue for Uttarakhand, India which having varied topography and due to that extreme rainfall causes quick runoff which warns structural and functional safety of large structures and other natural resources.
Vikram Kumar, Shanu, Jahangeer
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

On a Logistic Approximation to the Normal and Other Cumulative Distribution Functions

open access: yesRecoletos Multidisciplinary Research Journal, 2014
This paper proposes an approach that maintains the simplicity of various approximations as well as having a closed- form algebraic inverse yet easily generalizable to the approximation of other cumulative distribution functions.
Roberto N. Padua   +2 more
doaj   +1 more source

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