Results 71 to 80 of about 356,978 (308)

Hemopneumothorax due to subacute right ventricular perforation by a pacemaker lead with subtle clinical presentation

open access: yesJournal of Family Medicine and Primary Care, 2022
Subacute right ventricular perforation by a pacemaker lead is a rare complication. Although occasionally asymptomatic, complicated cases are usually evidently symptomatic.
Parminder S Otaal   +3 more
doaj   +1 more source

Transpiration and moisture evolution in packaged fresh horticultural produce and the role of integrated mathematical models: A review [PDF]

open access: yes, 2016
Transpiration has various adverse effects on postharvest quality and the shelf-life of fresh fruit and vegetables (FFV). If not controlled, the water released through this process results in direct mass loss and moisture condensation inside packaged FFV.
Bovi, Graziele G.   +4 more
core   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

open access: yesAdvanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash   +10 more
wiley   +1 more source

Multi‐Responsive Dendrimer‐Hyaluronic Acid Hydrogel With Lubricating and Immunoregulatory Functions for Synergistic Osteoarthritis Therapy

open access: yesAdvanced Functional Materials, EarlyView.
A hydrogel with dynamic cross‐links was formed by cross‐linking hyaluronic acid with curcumin‐preloaded, phenylboronic acid‐modified poly(amidoamine) dendrimers. This hydrogel exhibited excellent injectability and self‐healing ability, enabling controlled Cur release in response to low pH, high reactive oxygen species (ROS) generation, or mechanical ...
Junjie Liu   +9 more
wiley   +1 more source

Ultra-Low Contrast Percutaneous Coronary Intervention Guided by Optical Coherence Tomography Complicated by Coronary Perforation

open access: yesJACC: Case Reports, 2020
Percutaneous coronary intervention (PCI) in patients with chronic kidney disease is associated with a high-risk of contrast-induced nephropathy. We describe a case of ultra-low contrast PCI guided using optical coherence tomography using normal saline ...
Scott A. Harding, MB, ChB   +2 more
doaj   +1 more source

Model predictive control for current balancing in a four-phase buck converter [PDF]

open access: yes, 2016
Multiphase buck topology offers smaller ripple current and lower component ratings. This, however, compromises unbalanced output current between each phase of an inductor which leads to over-current and inductor saturation issues.
A. F. Yahaya, Jabbar, Mansor, Muhamad
core  

Upper Lumbar Pedicle Screw Insertion Using Three-Dimensional Fluoroscopy Navigation:Assessment of Clinical Accuracy [PDF]

open access: yes, 2010
We used a navigation system to insert 128 pedicle screws into 69 vertebrae (L1 to L3) of 49 consecutive patients. We assessed the pedicle isthmic width and the permission angle for pedicle screw insertion. The permission angle is the angle defined by the
Ito, Yasuo   +6 more
core   +1 more source

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

open access: yesAdvanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert   +10 more
wiley   +1 more source

Gas actuated bolt disconnect Patent [PDF]

open access: yes, 1965
Patent data on gas actuated bolt disconnect ...
Kinard, W. H.
core   +1 more source

A Novel Decellularized Fibrocartilage Graft Promotes Tympanic Membrane Repair

open access: yesAdvanced Healthcare Materials, EarlyView.
An off‐the‐shelf decellularized porcine meniscus fibrocartilage graft (MEND) is engineered for pediatric tympanoplasty. Featuring a microchannel architecture that promotes host cell invasion, MEND rapidly closes tympanic membrane perforations and fully remodels in vivo, outperforming fascia and matching cartilage grafts while avoiding donor‐site ...
Paul M. Gehret   +6 more
wiley   +1 more source

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