Results 31 to 40 of about 23,119,930 (306)

Height to Crown Base Modelling for the Main Tree Species in an Even-Aged Pedunculate Oak Forest: A Case Study from Central Croatia

open access: yesSouth-East European Forestry, 2021
The height to crown base (hcb) is a critical measure used in many investigations as an input variable to investigate the vigour of the stands, the social position of the trees, and to evaluate the behaviour of forest fires, among other uses.
Saray Martín-García   +5 more
doaj   +1 more source

Delayed logistic population models revisited [PDF]

open access: yes, 2014
We discuss the global dynamics of some logistic models governed by delay-differential equations. We focus on models of exploited populations, and study the changes in the dynamics as the harvesting effort is increased.
Liz, Eduardo
core   +1 more source

Testing Nonlinearity: Decision Rules for Selecting between Logistic and Exponential STAR Models [PDF]

open access: yes, 2001
A new LM specification procedure to choose between Logistic and Exponential Smooth Transition Autoregressive (STAR) models is introduced. The new decision rule has better properties than those previously available in the literature when the model is ...
Escribano, Álvaro, Jordá, Óscar
core   +2 more sources

Study on related risk factors of pain in de novo Parkinson's disease patients

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2022
Objective To explore the risk factors of pain in de novo Parkinson's disease (PD) patients. Methods A total of 129 de novo PD patients collected from The Affiliated Brain Hospital of Nanjing Medical University from October 2018 to September 2021 were ...
GUO Zhi⁃ying   +5 more
doaj   +1 more source

Logistic regression analysis of populations of electrophysiological models to assess proarrythmic risk. [PDF]

open access: yes, 2016
Population-based computational approaches have been developed in recent years and helped to gain insight into arrhythmia mechanisms, and intra- and inter-patient variability (e.g., in drug responses). Here, we illustrate the use of multivariable logistic
Grandi, Eleonora, Morotti, Stefano
core   +2 more sources

Incidence of locally invasive prostate cancer in patients with intermediate values of prostate-specific antigen [PDF]

open access: yesVojnosanitetski Pregled, 2007
Background/Aim. Feasibility of radical prostatectomy (RP) in patients with locally invasive prostate cancer (PC) is assessed by the standard parameters such as the stage of the disease, serum prostate-specific antigen (PSA) and bioptic Gleason grade (GG).
Cerović Snežana   +4 more
doaj   +1 more source

Approaches for Quantifying the ICC in Multilevel Logistic Models: A Didactic Demonstration

open access: yesCollabra: Psychology
Multilevel modeling techniques have gained traction among experimental psychologists for their ability to account for dependencies in nested data structures.
S. Devine   +3 more
semanticscholar   +1 more source

Uncertain logistic regression models

open access: yesAIMS Mathematics
Logistic regression is a generalized nonlinear regression analysis model and is often used for data mining, automatic disease diagnosis, economic prediction, and other fields.
Jinling Gao , Zengtai Gong
doaj   +1 more source

Soft Computing Ensemble Models Based on Logistic Regression for Groundwater Potential Mapping

open access: yesApplied Sciences, 2020
Groundwater potential maps are one of the most important tools for the management of groundwater storage resources. In this study, we proposed four ensemble soft computing models based on logistic regression (LR) combined with the dagging (DLR), bagging (
Phong T. Nguyen   +12 more
semanticscholar   +1 more source

Logistic response models with item interactions [PDF]

open access: yes, 2011
Items that are clustered according to shared content may violate the principle of conditional independence commonly used in item response theory.
Revuelta Menéndez, Javier
core   +2 more sources

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