Results 71 to 80 of about 22,013 (249)

Intermittent Control in Man and Machine [PDF]

open access: yesarXiv, 2014
Intermittent control has a long history in the physiological literature and there is strong experimental evidence that some human control systems are intermittent. Intermittent control has also appeared in various forms in the engineering literature.
arxiv  

Koopman Spectral Analysis of Intermittent Dynamics in Complex Systems: A Case Study in Pathophysiological Processes of Obstructive Sleep Apnea [PDF]

open access: yesarXiv, 2022
Complex systems, such as pathophysiological processes, commonly exhibit chaotic, nonlinear, and intermittent phenomena. Koopman operator theory and Hankel alternative view of Koopman (HAVOK) model have been widely used to decompose the chaos of the complex system dynamics into an intermittent forced linear system.
arxiv  

Surgical Outcomes of Full‐Endoscopic Degenerative Lumbar Lateral Recess Stenosis Decompression Through an Interlaminar Approach

open access: yesOrthopaedic Surgery, Volume 17, Issue 4, Page 1181-1189, April 2025.
Surgical procedure images. Image annotations: (A, B) Insertion of the working cannula with C‐arm fluoroscopy, confirming the correct surgical segment. (C) Under endoscopic visualization, removal of posterior soft tissues from the ligamentum flavum, exposing the dorsal surface of the ligamentum flavum, the inferior edge of the lamina, and the medial ...
Chengqian Huang   +14 more
wiley   +1 more source

Risk of cardiovascular disease in elderly subjects with obesity and liver fibrosis and the potential benefit of statin treatment

open access: yesEuropean Journal of Clinical Investigation, Volume 55, Issue 3, March 2025.
MASLD affects over 80%–90% of people with obesity, causing severe health risks. Elderly individuals with obesity and liver fibrosis are at increased risk of stroke. Pravastatin reduces the risk of (non‐)fatal stroke in these high‐risk individuals. Statin lower all‐cause mortality in elderly with a healthy weight and liver fibrosis.
Willy B. Theel   +5 more
wiley   +1 more source

A Case of Polyarteritis Nodosa Presenting as Rapidly Progressing Intermittent Claudication of Right Leg

open access: yesCase Reports in Medicine, 2017
Background. Polyarteritis nodosa (PAN) is a medium vessel vasculitis which causes significant morbidity and mortality. Usually, it presents with constitutional symptoms with angiographic evidence of aneurysms or segmental stenosis of arteries of ...
Chathuranga Lakmal Fonseka   +4 more
doaj   +1 more source

Intermittency of Superpositions of Ornstein-Uhlenbeck Type Processes [PDF]

open access: yes, 2015
The phenomenon of intermittency has been widely discussed in physics literature. This paper provides a model of intermittency based on L\'evy driven Ornstein-Uhlenbeck (OU) type processes. Discrete superpositions of these processes can be constructed to incorporate non-Gaussian marginal distributions and long or short range dependence.
arxiv   +1 more source

A CASE OF INTERMITTENT CLAUDICATION [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1907
n ...
openaire   +3 more sources

Hypoxia‐induced increase in sphingomyelin synthase 2 aggravates ischemic skeletal muscle inflammation

open access: yesThe FEBS Journal, Volume 292, Issue 5, Page 1086-1105, March 2025.
Critical limb ischemia (CLI) enhances sphingomyelin synthase 2 (SMS2) production, which increases sphingomyelin concentrations in ischemic skeletal muscles, promoting inflammation via the NFκB pathway. Hypoxia induces this process, which hampers muscle inflammation post‐CLI.
Hinano Mizugaki   +14 more
wiley   +1 more source

Balloon-expandable stent graft for coral reef aorta

open access: yesJournal of Vascular Surgery Cases and Innovative Techniques, 2020
Coral reef aorta (CRA) is a rare aortic occlusive disease with calcified intraluminal lesions. We report the case of a patient with CRA who underwent endovascular treatment (EVT). A 78-year-old woman presented with intermittent claudication.
Ryutaro Isoda, MD   +3 more
doaj  

Identification of the Causative Disease of Intermittent Claudication through Walking Motion Analysis: Feature Analysis and Differentiation

open access: yesThe Scientific World Journal, 2014
Intermittent claudication is a walking symptom. Patients with intermittent claudication experience lower limb pain after walking for a short time. However, rest relieves the pain and allows the patient to walk again.
Tetsuyou Watanabe   +3 more
doaj   +1 more source

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