The stimuli-responsive nanocomposites were designed as drug delivery nanocarriers. Thanks to promising properties such as large surface area and easy chemical functionalization, the graphene derivatives can be used for the drug delivery applications. For this purpose, in the current work, the poly(L,D-lactide)-block-poly(N-isopropylacrylamide-rand-acrylic acid) grafted from reduced graphene oxi...

A 38-year-old man, originally from Moldavia, presented at our Emergency Department with edema of the penis, paraphimosis with necrosis of the phimotic ring, glandular ulcer and multinodular hard semimoble penile masses associated with multiple sites of penile and glandular injection (Figs. 1 and 2). The patient reported having undergone penile subcutaneous and glandular paraffin injections 48 h...

let r be an associative ring with unity. an element a in r is said to be r-clean if a = e+r, where e is an idempotent and r is a regular (von neumann) element in r. if every element of r is r-clean, then r is called an r-clean ring. in this paper, we prove that the concepts of clean ring and r-clean ring are equivalent for abelian rings. further we prove that if 0 and 1 are the only idempotents...

let r be an associative ring with unity. an element a in r is said to be r-clean if a = e+r, where e is an idempotent and r is a regular (von neumann) element in r. if every element of r is r-clean, then r is called an r-clean ring. in this paper, we prove that the concepts of clean ring and r-clean ring are equivalent for abelian rings. further we prove that if 0 and 1 are the only idempotents...

Abstract Let ℛ be a semiprime ring with unity e and ϕ , φ automorphisms of ℛ. In this paper it is shown that if satisfies 2

in this work, we investigate the transfer of some homological properties from a ring $r$ to its amalgamated duplication along some ideal $i$ of $r$ $rbowtie i$, and then generate new and original families of rings with these properties.