Results 51 to 60 of about 134,576 (312)

Investigating a domain adaptation approach for integrating different measurement instruments in a longitudinal clinical registry [PDF]

open access: yesarXiv, 2023
In a longitudinal clinical registry, different measurement instruments might have been used for assessing individuals at different time points. To combine them, we investigate deep learning techniques for obtaining a joint latent representation, to which the items of different measurement instruments are mapped.
arxiv  

Control of the Extension-Flexion Cycle of Human Knees During Bicycle Riding by a Synergy of Solitary Muscular Excitations and Contractions [PDF]

open access: yesNonlinear Dynamics, (2016), 1-11, 2016
A Hill-type model is proposed for the extension-flexion cycle of human knees during bicycle riding. The extension-flexion cycle is controlled by a synergy of muscular excitations and contractions of the knee musculature. Muscular action potentials are modeled by Sine-Gordon kinks, while titin-influenced actomyosin contractionsare modeled by Korteweg-de
arxiv   +1 more source

Aberrant Autophagic Response in The Muscle of A Knock-in Mouse Model of Spinal and Bulbar Muscular Atrophy [PDF]

open access: yes, 2015
Spinal and bulbar muscular atrophy (SBMA) is characterized by loss of motoneurons and sensory neurons, accompanied by atrophy of muscle cells. SBMA is due to an androgen receptor containing a polyglutamine tract (ARpolyQ) that misfolds and aggregates ...
Aggarwal, Tanya   +15 more
core   +2 more sources

An autopsy study of a familial oculopharyngeal muscular dystrophy (OPMD) with distal spread and neurogenic involvement [PDF]

open access: yes, 1981
An 81-year-old man from a family with a history of oculopharyngeal muscular dystrophy (OPMD) involving 6 members over 4 generations is described. The patient first noted drooping of his eyelids at the age of 65.
Aarli   +49 more
core   +1 more source

Simultaneous column-based deep learning progression analysis of atrophy associated with AMD in longitudinal OCT studies [PDF]

open access: yesarXiv, 2023
Purpose: Disease progression of retinal atrophy associated with AMD requires the accurate quantification of the retinal atrophy changes on longitudinal OCT studies. It is based on finding, comparing, and delineating subtle atrophy changes on consecutive pairs (prior and current) of unregistered OCT scans.
arxiv  

Increased Adenine Nucleotide Degradation in Skeletal Muscle Atrophy [PDF]

open access: yes, 2019
Adenine nucleotides (AdNs: ATP, ADP, AMP) are essential biological compounds that facilitate many necessary cellular processes by providing chemical energy, mediating intracellular signaling, and regulating protein metabolism and solubilization.
Brault, Jeffrey J.   +2 more
core   +1 more source

A statistical approach to latent dynamic modeling with differential equations [PDF]

open access: yesarXiv, 2023
Ordinary differential equations (ODEs) can provide mechanistic models of temporally local changes of processes, where parameters are often informed by external knowledge. While ODEs are popular in systems modeling, they are less established for statistical modeling of longitudinal cohort data, e.g., in a clinical setting. Yet, modeling of local changes
arxiv  

Postural control during quiet standing following cervical muscular fatigue: effects of changes in sensory inputs [PDF]

open access: yesNeuroscience Letters 378, 3 (2005) 135-9, 2008
The purpose of the present experiment was to investigate the effects of cervical muscular fatigue on postural control during quiet standing under different conditions of reliability and/or availability of somatosensory inputs from the plantar soles and the ankles and visual information.
arxiv   +1 more source

Morphological characteristics of motor neurons do not determine their relative susceptibility to degeneration in a mouse model of severe spinal muscular atrophy [PDF]

open access: yes, 2012
Spinal muscular atrophy (SMA) is a leading genetic cause of infant mortality, resulting primarily from the degeneration and loss of lower motor neurons.
A Lionikas   +48 more
core   +2 more sources

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

open access: yesFEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik   +3 more
wiley   +1 more source

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