We have studied in rabbits the effect of subconjunctivally injected hydrocortisone on the polymorphonuclear leucocyte invasion of corneal wounds at different times after an injury. One group of rabbits was treated with the steroid (hydrocortisone group) and the other not (control group). After making nonpenetrating trephine incisions on the cornea we obtained cellular samples by the impression ...

Canaloplasty is a nonpenetrating blebless surgical technique for open-angle glaucoma, in which a flexible microcatheter is inserted within Schlemm's canal for the entire 360 degrees. When the microcatheter exits the opposite end, a 10-0 prolene suture is tied and it is then withdrawn, by pulling microcatheter back through the canal in the opposite direction. Ligation of prolene suture provides ...

We present a new hybrid CPU/GPU collision detection technique for rigid and deformable objects based on spatial subdivision. Our approach efficiently exploits the massive computational capabilities of modern CPUs and GPUs commonly found in off-the-shelf computer systems. The algorithm is specifically tailored to be highly scalable on both the CPU and the GPU sides. We can compute discrete and c...

Several cases of transmural myocardial infarction and ventricular aneurysm caused by a blunt trauma of the chest have been reported. Nevertheless, the cases documented with coronary and ventricular angiography are very few. There has always been a debate over the etiological mechanism of such lesions. Since in some cases there was no evidence of coronary lesions, it was postulated that they wer...

Four cases are presented of patients who sustained blunt trauma to the epigastrium in a train crash. Two patients sustained a transected pancreas. The mechanism of injury is discussed.

Channel access resistance has been measured to estimate the characteristic size of a single ion channel. We compare channel conductance in the presence of nonpenetrating water-soluble polymers with that obtained for polymer-free electrolyte solution. The contribution of the access resistance to the total alamethicin channel resistance is 10% for first three open channel levels. The open alameth...

The advantages of the nonpenetrating deep sclerectomy (NPDS) compared with the trabeculectomy are based on faster recovery and lower incidence of complications. The incarceration of the iris at the trabeculo-Descemet's membrane is one complication of NPDS and leads frequently to the reoperation of the patient. We report one case operated of NPDS with iris incarceration post-Nd:YAG goniopuncture...

The lactoperoxidase-catalyzed iodination technique was utilized to incorporate radioactive iodine into membrane proteins which lie on the outer surface of the myelin sheath. An intact, myelinated nerve bundle, the dorsal column of the cat spinal cord, was employed. The enzymatically iodinated proteins were identified by polyacrylamide gel electrophoresis, and the specific radioactivity was det...

Rydberg states of the NO molecule have been probed by two-color resonantly enhanced multiphoton ionization in a magnetic field of 0.93 T. Penetrating s and d states show strong interactions with the intramolecular field while nonpenetrating f states show stronger interactions with the extemal magnetic field. Competition between the molecular core anisotropy and the extemal field anisotropy lead...