Keratocystic odontogenic tumor (KCOT) is a benign intraosseous neoplasm of the jaw occurring most commonly in mandibular ramus molar area with male predilection. Peripheral KCOTs are very uncommon. Here we report a case of keratocyst in buccal mucosa in a 55 years old female patient, the diagnosis of which was based on subjective histological evaluation and further confirmed by immunohistochemi...

this paper presents the petrographic examination results on the thirteen pottery sherds from the first season of excavation of tepe gratziani in sistan plain. in order to specify whether the pottery were local or imported, conducted experiments have been performed by polarizing microscope of jame swift model in the petrographic lab of the institute of cultural heritage which based on the review...

A new crystalline protein of low molecular weight, ribonuclease, has been isolated and described by Kunitz (1, 2). A preliminary study of this protein has now been made with x-rays and with the polarizing microscope. The material studied was crystaUized from an ethanol-water solution. The crystals were dried in air without appreciable deterioration and the measurements here described were made ...

The polarizing region of the developing limb bud is one of the best known examples of a cell-cell signalling centre that mediates patterning in vertebrate embryos. This article traces some highlights in the history of the polarizing region from its discovery by John Saunders and early work that defined polarizing activity through a period in which modelling was pre-eminent, right up to the disc...