Results 91 to 100 of about 50,101 (256)

Spatial Resolution of Attenuation Imaging

Archives of Acoustics, 2014
The attenuating properties of biological tissue are of great importance in ultrasonic examination even though its anatomical variability limits diagnostics effectiveness.
Ziemowit KLIMONDA, Jerzy LITNIEWSKI, Andrzej NOWICKI   +2 more
doaj  

Finite-Sample Diagnostics for Random-Effects Misspecification in Poisson Generalized Linear Mixed Models

Mathematics
Poisson mixed-effects models are essential for analyzing repeated count data, relying on latent random effects to account for unobserved heterogeneity and longitudinal dependence.
Jairo A. Ángel, Jorge I. Vélez
doaj   +1 more source

Diagnostic and comparative analysis of dark energy models with q(z) parametrizations

The European Physical Journal Plus
This manuscript presents a diagnostic analysis of three dark energy models resulting from the parametrization of the deceleration parameter. These models exhibit intriguing features, including late-time acceleration and a cosmological phase transition from early deceleration to late acceleration.
Dhruv Arora, Himanshu Chaudhary, Shibesh Kumar Jas Pacif, G. Mustafa   +3 more
openaire   +2 more sources

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

STRUCTURAL AND PARAMETRIC IDENTIFICATION OF THE GAS FURNACE MODEL BASED ON MEASUREMENTS OF ITS INPUT AND OUTPUT PROCESSES

Вестник Кемеровского государственного университета, 2014
The paper describes buildinga gas furnace model basedon the method of structural and parametric identification by discrete measurements of accidental input and output processes. The method is based on the theory of continued fractions.
M. A. Novoseltseva
doaj  

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall, Kimberly Kwei, Rolando J. Acosta, Bharatkumar Koyani, Erin Robertson, Pratyush Rai, Roland Barge, Emily Timm, Nicollette L. Purcell, Natasha Desai, Dhanesh Patel, Ana‐Maria Visoiu‐Knapp, Samuel Stuart, Rinol Alaj, Matthew F. Wipperman, Oren Levy, Joan A. O'Keefe   +16 more
wiley   +1 more source

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown, Giulia Carli, Prabesh Kanel, Stiven Roytman, Jaimie Barr, Nicolaas I. Bohnen, Roger L. Albin   +6 more
wiley   +1 more source

Temperature changes and agricultural performance linkage: Evidence from Africa

Sustainable Futures
Temperature changes pose significant challenges for agriculture, influencing crop yields, resource use, and food security. Understanding these dynamics is essential for assessing risks and developing sustainable adaptation strategies.
Adéla Malinová, Michal Čermák, Vladimír Krepl, Zdeněk Vališ   +3 more
doaj   +1 more source

M-quantile regression: diagnostics and parametric representation of the model

, 2016
M-quantile regression generalizes both quantile and expectile regression using M-estimation ideas. This paper covers several topics related to estimation, model assessment and hypothesis testing that were so far neglected in the many articles about M-quantile regression methods that appeared in recent years.
BIANCHI, Annamaria, Fabrizi, Enrico, Salvati, Nicola, Tzavidis, Nikos   +3 more
openaire   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen, Ceren Tozlu, Tina Roostaei, Fatoumata Diallo, Kaho Onomichi, Jiyeon Son, Zongqi Xia, Philip L. De Jager   +7 more
wiley   +1 more source