Results 91 to 100 of about 7,988,337 (297)

Positively skewed data: revisiting the box-cox power transformation.

open access: yesInternational Journal of Psychological Research, 2010
Although the normal probability distribution is the cornerstone of applying statistical methodology; data do not always meet the necessary normal distribution assumptions. In these cases, researchers often transform non-normal data to a distribution that
Jake Olivier, Melissa M. Norberg
doaj   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Total score distribution of the 16 items on normal and log-normal scales.

open access: yes, 2018
Total score distribution of the 16 items along a normal scale (A) and a log-normal scale (B). (A) The total score distribution of the 16 items was right-skewed.
Kazuki Ide (565523)   +5 more
core   +1 more source

IGF2 knockout reduces but does not abolish osteosarcoma growth in vitro and in vivo

open access: yesFEBS Open Bio, EarlyView.
To test whether endogenous IGF2 promotes osteosarcoma growth, IGF2 was knocked out in Saos2 cells via CRISPR‐Cas9. KO cells showed reduced proliferation in vitro, and knockout xenografts in mice reached only ~25% of wild‐type tumor volume. Insulin‐like growth factor 2 (IGF2) is implicated in osteosarcoma, but direct functional evidence of its role is ...
Shun Yao, Marco Archetti
wiley   +1 more source

FITTING A THREE-PARAMETER LOG-NORMAL DISTRIBUTION BY LEAST SQUARES

open access: yes, 1974
A three-parameter log-normal distribution is derived as an exact functional transform of an embedded normal distribution. The parameters of this function are evaluated by fitting to histograms of natural hydrologic data. The practice of transformation of
WILLARD M. SNYDER, JAMES R. WALLACE
core   +1 more source

Determination of substrate log-normal distribution in the AZ91/SICP composite

open access: yesMetalurgija, 2015
The aim in this work is to develop a log-normal distribution of heterogeneous nucleation substrates for the composite based on AZ91 alloy reinforced by SiC particles.
J. Lelito   +7 more
doaj  

Use of Hazard Functions for Determining Power-Law Behaviour in Data

open access: yesAnalytics
Determining the ‘best-fitting’ distribution for data is an important problem in data analysis. Specifically, observing how the distribution of data changes as values below (or above) a threshold are omitted from analyses can be of use in various ...
Joseph D. Bailey
doaj   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

open access: yesAging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi   +3 more
wiley   +1 more source

Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons   +33 more
wiley   +1 more source

(Supplement 02) Log-normal particle size distribution measurements at Paphos, Cyprus, during March-April 2017

open access: yes, 2019
(Supplement 02) Log-normal particle size distribution measurements at Paphos, Cyprus, during March-April ...
Frank Stratmann (6886343)   +21 more
core   +1 more source

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