purpose: to report a case of recurrent keratoconus after penetrating keratoplasty (pk). patient and findings: a 31-year-old male patient who had undergone pk in his right eye for keratoconus 10 years ago presented with gradually decreased vision in the right eye. clinical, topographic, and histopathologic features of the cornea including irregular myopic astigmatism, central and paracentral cor...

the process of globalization entails the acquisition of a construct, cultural intelligence, with which efl students can function appropriately in intercultural situations. this study was, first, intended to find the relationship between cultural intelligence and the use of expressions of gratitude by iranian efl learners. second, it sought to determine whether there were any significant differe...

abstract background and objective: to assess the diagnostic value of hysterosalpingography (hsg) in the evaluation of the uterine cavity in recurrent aborters in comparison to hysteroscopy as the gold standard of diagnosis. methods: 58 reproductive age women, all with habitual abortion (3 consecutive abortions), were examined by both hsg and hysteroscopy. results: the overall sensitivity and sp...

let $(m^{2n},g)$ be a real hypersurface with recurrent shapeoperator and tangent to the structure vector field $xi$ of the sasakian space form$widetilde{m}(c)$. we show that if the shape operator $a$ of $m$ isrecurrent then it is parallel. moreover, we show that $m$is locally a product of two constant $phi-$sectional curvaturespaces.

in recent decades artificial neural networks (anns) have shown great ability in modeling and forecasting non-linear and non-stationary time series and in most of the cases especially in prediction of phenomena have showed very good performance. this paper presents the application of artificial neural networks to predict drought in yazd meteorological station. in this research, different archite...

OBJECTIVE To investigate the immunohistochemical expressions of p53, ki67, CK20 in superficial papillary urothelial neoplasms of the bladder and correlate them with histological grade, tumor progression and recurrence. METHODS We selected samples of 43 patients with superficial transitional cell carcinoma of the bladder. They were divided into two groups, one called Recurrent (R), with 18 ind...