Results 211 to 220 of about 30,626 (312)

Heart rate variability changes in adolescents following surgical correction of aortic coarctation: Persistent autonomic alterations

open access: yesPhysiological Reports, Volume 14, Issue 3, February 2026.
Abstract Heart rate variability (HRV) is a sensitive marker of autonomic regulation. This study examined adolescents in the long‐term postoperative period after early surgical correction of aortic coarctation (CoA) compared with age‐matched healthy peers. Seventy adolescents (35 CoA, 35 controls; 12–17 years) underwent 5‐min resting ECG and respiratory
O. V. Shevaldova   +5 more
wiley   +1 more source

Vertebral trabecular microarchitecture changes in the normally ageing population. [PDF]

open access: yesQuant Imaging Med Surg
Chan CH   +7 more
europepmc   +1 more source

Fractal Compression of Medical Images

open access: yes, 2008
Medical images, like any other digital data, require compression in order to reduce disk space needed for storage and time needed for transmission. The lossless compression methods of still images can shorten the file only to a very limited degree. The application of fractal compression to medical images would allow obtaining much higher compression ...
openaire   +1 more source

Fractionated Anionic PAM Dosing Under High Salinity: Controlling Floc Growth and Stability. [PDF]

open access: yesPolymers (Basel)
Ramos J   +6 more
europepmc   +1 more source

Intelligent fuzzy approach for fast fractal image compression [PDF]

open access: gold, 2014
Ali Nodehi   +5 more
openalex   +1 more source

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