Results 111 to 120 of about 12,326,596 (323)

Some R graphics for bivariate distributions [PDF]

There is no package in R to plot bivariate distributions for discrete variables or variables given by classes. Therefore, with the help of the already implemented R routine persp R functions will be proposed for 3-D plots of the bivariate distribution of
Klein, Ingo
core  

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

The Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban, Alberto Martín‐Serra, Alejandro Pérez‐Ramos, Borja Figueirido   +3 more
wiley   +1 more source

Comparative study on bivariate statistical characteristics of drought in Shandong using SPI and SPEI

Scientific Reports
With global environmental change, an in-depth understanding of the changing patterns in the frequency, duration and severity of drought events is of great significance to regional water resources management and agricultural production.
Jian Liu, Jun Xia, Mingsen Wang
doaj   +1 more source

Discrete Joint Random Variables in Fréchet-Weibull Distribution: A Comprehensive Mathematical Framework with Simulations, Goodness-of-Fit Analysis, and Informed Decision-Making

Mathematics
This paper introduces a novel four-parameter discrete bivariate distribution, termed the bivariate discretized Fréchet–Weibull distribution (BDFWD), with marginals derived from the discretized Fréchet–Weibull distribution.
Diksha Das, Tariq S. Alshammari, Khudhayr A. Rashedi, Bhanita Das, Partha Jyoti Hazarika, Mohamed S. Eliwa   +5 more
doaj   +1 more source

Pelvic morphology and body size in relation to the preauricular sulcus: Evidence from medieval to modern Iberia

The Anatomical Record, EarlyView.
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González, Julia Muñoz‐Guarinos, Nico Cirotto, Sonia Díaz‐Navarro, Laura Rodríguez, José Miguel Carretero   +5 more
wiley   +1 more source

Asymptotics of the Joint Distribution of Multivariate Extrema

Nonlinear Analysis, 2001
Let Wn and Zn be a bivariate extrema of independent identically distributed bivariate random variables with a distribution function F. in this paper the nonuniform estimate of convergence rate of the joint distribution of the normalized and centralized ...
A. Aksomaitis, A. Jokimaitis
doaj   +1 more source

Visual Hypersensitivity as a Transdiagnostic Marker of Surgical Pain Response in Arthritis and Chronic Pain Syndromes

Arthritis &Rheumatology, EarlyView.
Objective Nociplastic pain is pain primarily driven by the central nervous system and, unlike nociceptive pain conditions, is thought to be refractory to peripherally directed therapies. Nociplastic pain is also associated with hypersensitivity to painful and other sensory stimuli (such as visual stimuli). Nonpainful sensory measures have not been well
Noah Waller, Steven E. Harte, Richard E. Harris, Andrew Schrepf, Tristin Smith, Eric Ichesco, Chelsea Kaplan, Flavia Sunzini, Deeba Minhas, Wendy Marder, Sara R. Till, David A. Williams, Chad M. Brummett, Neil Basu, Sawsan As‐Sanie, Daniel J. Clauw   +15 more
wiley   +1 more source

Un frailty aditivo en modelos de supervivencia bivariante

Revista de Matemática: Teoría y Aplicaciones, 2009
Bivariate survival models based on the presence of an unobseved random covariate, grailty, tend to assume a proportional hazard hypothesis. A bivariate survival model is constructed.
Esteban Navarrete Álvarez, Julia García-Leal, Ana María Lara-Porras   +2 more
doaj   +1 more source

Development and Validation of a Short Version Eye‐Tracking Paradigm for the Screening and Diagnosis of Autism Spectrum Disorder in Qatar

Autism Research, EarlyView.
ABSTRACT Objective behavioral assessments for autism spectrum disorder (ASD) are often time‐intensive and require substantial clinical expertise. Eye‐tracking–based paradigms offer quantifiable measures of social attention that can complement traditional tools.
Fouad Al Shaban, Iman Ghazal, Fatema Al‐Faraj, Sarah Aqel, I. Richard Thompson   +4 more
wiley   +1 more source

Do drugs approved via expedited approval pathways have therapeutic advantages? A systematic review and meta‐analysis

British Journal of Clinical Pharmacology, EarlyView.
Regulators use expedited approval pathways to speed market approval and patient access to promising new drugs. However, there is uncertainty about whether these pathways are successful in approving drugs with significant therapeutic advantages. This systematic review aims to examine the safety, effectiveness and cost‐effectiveness of drugs approved via
Ashleigh Hooimeyer, Eliza J. McEwin, Zhicheng Wang, Joel Lexchin, Barbara Mintzes   +4 more
wiley   +1 more source