The virulence of Shigella flexneri var. Y (NTCC 4839), its lysogenic convertants characterized by antigens I, V, and 7, 8, and of a phage-free clone selected by means of antiphage serum was studied. The parent strain was avirulent in the guinea pig eye test and in the "mouse shigellosis" model, but chicken embryo tests indicated the presence of penetrating ability together with defective tissue...

Purpose. To describe the clinical characteristics, diagnosis, and treatment with intravitreal ampicillin sodium of a postoperative endophthalmitis case due to Streptococcus uberis; an environmental pathogen commonly seen in mastitis cases of lactating cows. Methods. Case Report. A 52-year-old, Hispanic diabetic patient who suddenly developed severe pain and severe loss of vision, following vitr...

State-average complete active space self-consistent field (SA-CASSCF) calculations are performed on the energetically lowest two electronic states of a novel alkyl-substituted 4-quinopyran twisted pi-system electro-optic chromophore. In the gas phase, the ground-state electronic configuration is diradicaloid (D), and the first excited state is zwitterionic (Z). When an external dipolar field is...

Little is known about the time when a malig nant growth may first release tumor emboli into the lymphatic system. The problem can be inves tigated by employing the technic of anterior cham ber inoculation, since the primary tumor may be readily destroyed by eye enucleation or x-radiation. Mouse tumor C-1300 appeared suitable for this purpose, since it metastasizes to the cervical lymph nodes of...

PURPOSE Primary blast injury (PBI) mostly affects air-filled organs, although it is sporadically reported in fluid-filled organs, including the eye. The purpose of the present paper is to explain orbit blast injury mechanisms through finite element modeling (FEM). METHODS FEM meshes of the eye, orbit, and skull were generated. Pressure, strain, and strain rates were calculated at the cornea, ...

purpose: to report the development of cataract after corneal damage by dungle beetle prongs. case report: a 28 year-old man, resident of the village chah setareh, sabzevar, presented complaining of trauma to the right eye with the dangle beetle while motorcycling. slit lamp examination revealed six corneal perforations, hyphema (50% of anterior chamber) percent, iris sphincter rupture, and rupt...