Cellulose sulfuric acid as a bio-polymer based solid catalyst efficiently catalyzes the selectively oxidation of sulfides to sulfoxides and thiols to disulfides using hydrogen peroxide as a green oxidant with good yields at room temperature. The developed method offers a number of advantages such as high selectivity, mild reaction conditions, simple operation, cleaner reaction profiles, low...

ABSTRACT Objective: to estimate the cost of setting up and monthly operation a teleconsultation room. Method: descriptive study, carried out by means survey direct indirect costs for room in Niterói - RJ BR. The data analysis was based on discrimination type quantity equipment needed set room; budgets obtained through research public tenders commercial stores. To running costs, following were c...

introduction: post operative pain is an unpleasant experience following various stimuli resulting in a response by the body. this process causes physiological disturbances in all of the systems of the body. methods and materials: in this clinical trial , 60 upper abdominal surgery patients were selected post operatively and divided into two groups of 30 patients each. in one group, bupivacaine ...

this is a case presentation of a 26-year-old woman with a moderate-sized atrial septal secundum defect (17mm) who underwent catheterism, during which an amplatzer septal occluder number 26 was inserted successfully. on the second postoperative day, she deteriorated and a clinical examination showed a typical tamponade. after a percutaneous aspiration of the pericardial cavity and transient impr...

Surgical treatment of intracranial neurovascular diseases primarily comprises two approaches, craniotomy and endovascular intervention. However, one simple approach cannot resolve some complex vascular diseases, and combined operation is necessary. Previously, this type of combined operation was difficult due to an inadequate operating suite. Recently, with the construction of modern hybrid ope...

This paper investigates the impact of allowing patient recovery in the operating room when no recovery bed is available. Three types of identical resources are considered : transporters, operating rooms and recovery beds. A fixed number of patients must be planned over a term horizon, usually one or two weeks. The surgery process is modelled as follows : each patient is transported from the war...