A56-year-old man presented with sudden severe chest and back pain. His chest x-ray showed a slight prominence on the upper descending thoracic aorta. Aortic dissection (type B) was visible on transesophageal echocardiography and CT. Coronary angiography showed normal coronary arteries. MRI and contrast-enhanced magnetic resonance angiography (CE-MRA) confirmed the diagnosis of type B aortic dis...

Semiconductor nanowire (NW) devices that can address intracellular electrophysiological events with high sensitivity and spatial resolution are emerging as key tools in nanobioelectronics. Intracellular delivery of NWs without compromising cellular integrity and metabolic activity has, however, proven difficult without external mechanical forces or electrical pulses. Here, we introduce a biomim...

We retrospectively studied the postoperative results in nine patients with corneal scarring due to herpes zoster ophthalmicus who underwent penetrating keratoplasty. This was a highly selected group that satisfied all of the following criteria: (a) absence of active disease of the ocular surface and eyelids, (b) intraocular pressure under control, and (c) absence of active keratouveitis. Penetr...

The effect of corneal edema and the effect of penetrating keratoplasty upon the accuracy of electronic applanation tonometry were studied in rabbits. Pressure readings made directly from cannulas in the anterior chamber correlated well with those made by electronic applanation tonometry both in severe corneal edema and 24 hours after penetrating keratoplasty. The advantages of electronic applan...

Introduction: Penetrating cardiac injuries generally occur secondary to gunshot or stab wounds and have a high mortality rate. They are rare and often fatal in children. When a foreign object penetrates the myocardium, it is dangerous to remove it, suddenly, and should be removed gradually to prevent excessive bleeding. Case report: We report a case of an unusual penetrating cardiac injury in a...

UNLABELLED The exposing of dental implant into the maxillary sinus combined with membrane perforation might increase risks of implant failure and sinus complications. OBJECTIVE The purpose of this study was to investigate the effects of the dental implant penetration into the maxillary sinus cavity in different depths on osseointegration and sinus health in a dog model. MATERIAL AND METHODS...

Although cell-penetrating peptides are able to deliver cargo into cells, their uptake mechanism is still not fully understood and needs to be elucidated to improve their delivery efficiency. Herein, we present evidence of a new mechanism involved in uptake, the membrane repair response. Recent studies have suggested that there might be a direct penetration of peptides in parallel with different...

In this paper, modeling of high speed projectiles with different nose shapes, penetrating into steel fiber reinforced concrete is investigated. This is a novel study because it considers the length to diameter ratio of steel fiber as well as projectile length to diameter ratio and volume fraction of fiber used in concrete matrix on the impact resistance of steel fiber reinforced concrete fibers...

The effects of four cryoprotectants (dimethylformamide (DMF), ethylene glycol (EG), glycerol and dimethyl sulfoxide (DMSO)) on monolayers phospholipids were investigated at high cryoprotectant concentration (10% v/v) relevant to cryoprotection, compared with previous work lower concentrations (5% v/v). results show that the interactions between cryoprotective agents (CPAs) lipids are complex, s...