Results 51 to 60 of about 2,544,987 (248)

Surgical management for upper urinary tract transitional cell carcinoma [PDF]

open access: yes, 2011
Background Upper tract transitional cell carcinomas (TCC) are uncommon and aggressive tumours. There are a number of surgical approaches to manage this condition including open radical nephroureterectomy and laparoscopic procedures.
El-Mokadem, Ismail   +11 more
core   +1 more source

Three-Year Follow-Up of Results of Intraocular Lens Fixation in Patients with Retinitis Pigmentosa

open access: yesCase Reports in Ophthalmology, 2023
This is a retrospective, consecutive, noncomparative case series of 6 eyes of 5 retinitis pigmentosa (RP) patients who had undergone pars plana vitrectomy (PPV) and intraocular lens (IOL) implantation.
Gen Miura, Takayuki Baba
doaj   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

open access: yesAdvanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Procedures in emergency medicine: surgical cricothyroidotomy

open access: yes, 2013
This video is part of a series of videos demonstrating common procedures performed in the Emergency Medicine setting. It was prepared by Cape Town Emergency Medicine's consultants and registrars.
Oosthuizen, Almero   +1 more
core   +1 more source

Awareness, Attitudes and Perceptions of Medical Students Towards Refractive Surgery

open access: yesTNOA Journal of Ophthalmic Science and Research
Purpose: To assess undergraduate medical students’ understanding of refractive surgery. Materials and Methods: A cross-sectional questionnaire-based study was conducted among undergraduate medical students at a medical college in central India.
Divya Trivedi   +2 more
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

open access: yesAdvanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan   +5 more
wiley   +1 more source

Unexpectedly high corneal flap thickness and ectasia after mechanical LASIK

open access: yesRevista Brasileira de Oftalmologia, 2023
LASIK is a refractive surgical procedure in which a corneal flap is created to expose the corneal stromal bed. Preoperative estimation of corneal flap thickness is necessary to calculate the percentage tissue altered in LASIK, an important quantitative ...
José Belucio Neto   +3 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Interruption of anticoagulation in patients undergoing elective surgical procedures

open access: yes, 2020
Interruption of long-term therapy with oral anticoagulants in patients undergoing elective surgical procedures is a common problem in clinical practice.
Agnieszka Łętek   +3 more
core   +1 more source

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