Let S be a topological semigroup acting on a topological space X. We develop the theory of (weakly) almost periodic functions on X, with respect to S, and form the (weakly) almost periodic compactifications of X and S, with respect to each other. We then consider the notion of an action of Son a Banach space, and on its dual, and after defining S-invariant means for such a space, we give a...

schwannoma of the hypoglossal nerve is an uncommon benign neoplasm. we present a 49-year-old female patient with hypoglossal schwannoma presenting as a painless mass in the submandibular area.

security is one of the most critical factors affecting the quality of urban spaces. nowadays, most of these spaces have become merely pathways with neither social life nor sense of belonging to it. insufficiency of public surveillance along with weak sense of control and surveillance results in spaces with high crime rate. in the late 60s and early 70s, high crime statistics in open urban space...

in the present paper, we give a new approach to caristi's fixed pointtheorem on non-archimedean fuzzy metric spaces. for this we define anordinary metric $d$ using the non-archimedean fuzzy metric $m$ on a nonemptyset $x$ and we establish some relationship between $(x,d)$ and $(x,m,ast )$%. hence, we prove our result by considering the original caristi's fixedpoint theorem.

introduction hemangiopericytomas (hpcs) are rare neoplasms which account for approximately 1% of primary vascular tumors. case presentation we report a 73 years old woman with vague abdominal pain who did not have further significant symptoms and was diagnosed to have retroperitoneal hemangiopericytoma. discussion the tumor was initially diagnosed by ultrasound evaluation. mri showed a lobulate...

no abstract