Results 51 to 60 of about 482,321 (300)

Un test de similitud entre dos secuencias dicotómicas ordenadas

Revista Colombiana de Estadística, 2010
Se propone una prueba para la hipótesis de similitud de dos secuencias dicotómicas ordenadas. Un estudio de potencia basado en simulación indica que la prueba propuesta mantiene su tamaño bajo la hipótesis nula y que su potencia crece adecuadamente con ...
RAMÓN GIRALDO HENAO, JIMMY CORZO SALAMANCA   +1 more
doaj  

Does raising type 1 error rate improve power to detect interactions in linear regression models? A simulation study. [PDF]

PLoS ONE, 2013
Statistical interactions are a common component of data analysis across a broad range of scientific disciplines. However, the statistical power to detect interactions is often undesirably low.
Casey P Durand
doaj   +1 more source

Parameter Estimation and Quantitative Parametric Linkage Analysis with GENEHUNTER-QMOD [PDF]

, 2012
Objective: We present a parametric method for linkage analysis of quantitative phenotypes. The method provides a test for linkage as well as an estimate of different phenotype parameters.
Abecasis GR, Almasy L, Birgin EG, Birgin EG, Chen WM, Dietter J, Dietter J, Dudbridge F, Elston RC, Franke D, Gudbjartsson DF, Haseman JK, Holmans P, Kleensang A, Knapp M, Kong A, Konstantin Strauch, Kruglyak L, Kurz T, Kurz T, Lander ES, Lathrop GM, Mattheisen M, Morris N, Pratt SC, Strauch K, Strauch K, Thomas Künzel, Ziegler A   +28 more
core   +1 more source

Characterization of Clinical Phenotype to Glial Fibrillary Acidic Protein Concentrations in Alexander Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the concentration of glial fibrillary acidic protein (GFAP) in cerebrospinal fluid (CSF) and plasma in Alexander disease (AxD) and whether GFAP levels are predictive of disease phenotypes. Methods CSF and plasma were collected (longitudinally when available) from AxD participants and non‐AxD controls.
Amy T. Waldman, Asako Takanohashi, Joshua Y. Joung, Geraldine W. Liu, Kaley Arnold, Amy Pizzino, Walter Faig, Sarah Woidill, Sona Narula, Adeline L. Vanderver   +9 more
wiley   +1 more source

A SIMILARITY TEST BETWEEN TWO DICHOTOMIC ORDERED SEQUENCES UN TEST DE SIMILITUD ENTRE DOS SECUENCIAS DICOTÓMICAS ORDENADAS

Revista Colombiana de Estadística, 2010
We propose a test for the hypothesis of similarity between dichotomic ordered sequences. A simulation study was carried out to estimate the power of the proposed test.
Giraldo Henao Ramón, Corzo Salamanca Jimmy   +1 more
doaj  

Dichotomous Proportional Hazard Regression Model: A Case Study on Students’ Dropout

Mathematics
In problems involving binary classification, researchers often encounter data suitable for modeling dichotomous responses. These scenarios include medical diagnostics, where outcomes are classified as “disease” or “no disease”, and credit scoring in ...
Guillermo Martínez-Flórez, Roger Tovar-Falón, Carlos Barrera-Causil   +2 more
doaj   +1 more source

Introducing WIW for Detecting the Presence of Water in Wetlands with Landsat and Sentinel Satellites

Remote Sensing, 2019
Many wetlands are characterized by a vegetation cover of variable height and density over time. Tracking spatio-temporal changes in inundation patterns of these wetlands remains a challenge for remote sensing.
Gaëtan Lefebvre, Aurélie Davranche, Loïc Willm, Julie Campagna, Lauren Redmond, Clément Merle, Anis Guelmami, Brigitte Poulin   +7 more
doaj   +1 more source

Semiparametric topographical mixture models with symmetric errors [PDF]

, 2014
Motivated by the analysis of a Positron Emission Tomography (PET) imaging data considered in Bowen et al. (2012), we introduce a semiparametric topographical mixture model able to capture the characteristics of dichotomous shifted response-type ...
Butucea, Cristina, Tzoumpe, Rodrigue Ngueyep, Vandekerkhove, Pierre   +2 more
core  

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai, Guanglin Zhu, Qiu He, Chen Luo, Lingyun Zhuo, Xingfu Wang, Yiming Chen, Xiaoyong Chen, Wendong You, Jiaheng Xu, Yuanxiang Lin, Dezhi Kang, Shuai Wu, Zanyi Wu   +13 more
wiley   +1 more source

A competing risk model for health and food insecurity in the West Bank [PDF]

, 2010
This paper explores the interactions between the risk of food insecurity and the decision to health insure in the Palestinian Territories. The risk of adverse health conditions is insurable; the risk of food insecurity is a background risk and no market ...
Cavatorta, Elisa, Pieroni, L.
core   +1 more source