O câncer de próstata é a segunda neoplasia maligna mais comum no mundo entre os homens e várias técnicas estão disponíveis para realização da prostatectomia. Objetivos: comparar prostatectomia radical laparoscópica transperitoneal comparada à extraperitoneal. Materiais métodos: Trata-se uma revisão integrativa, em que questão norteadora foi “A tem vantagens quando extraperitoneal?”. A busca pel...

A series of 3,4-dihydroisoquinoline-3-carboxylic acid derivatives were synthesised and tested for their free-radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH·), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical (ABTS·+), superoxide anion radical (O2·-) and nitric oxide radical (·NO) assays. We also studied d-amino acid oxidase (DAAO), acetylcholinestera...

Let  be a commutative ring and  be a unitary  module. We define a semi prime sub module of a module and consider various properties of it. Also we define semi-radical of a sub module of a module and give a number of its properties. We define modules which satisfy the semi-radical formula and present the existence of such a module.

high yield photolytic reduction of a series of thiaphosphoranes z p sr to give z p h with uv-light-induced tri-n-butyltin hydride through phosphoranyl radical z p is described. this reaction is inhibited by a-methylstyrene and initiated by a radical initiator such as azobisisobutyronitrile

Transition metal-catalyzed radical-radical cross-coupling reactions provide innovative methods for C-C and C-heteroatom bond construction. A theoretical study was performed to reveal the mechanism and selectivity of the copper-catalyzed C-N radical-radical cross-coupling reaction. The concerted coupling pathway, in which a C-N bond is formed through the direct nucleophilic addition of a carbon ...

Background: Free radicals and reactive oxygen species(ROS) are the most important factors in formation of oxidative stress reaction. Now, radical damage has been suggested to contribute to a wide variety of diseases such as Alzheimer, atherosclerosis and cancer. Transition metal ions in the presence of the various biomolecules produce these active compounds. The aim of this study is introducing...