Commercial yerba mate (Ilex paraguariensis) produced in South America: Determination of dithiocarbamate residues by gas chromatography-mass spectrometry.

This work presents an easy and quick miniaturized procedure for the analysis of dithiocarbamates fungicides (DTC), by GC-MS, in yerba mate, an important product in South America. The sample amount, the volume of extracting solvent and acid solution, and the time of hot bath shaking were minimized. A clean-up procedure based on PSA, GCB and MgSO4 was studied in order to improve analytical signal and reduce GC-MS system damage.

[Is professional recognition in plastic surgery related to activity in research].

Objective: To evaluate the relation of medical research, with the participation of prominent plastic surgeon in Congress.

Methods: We reviewed the scientific programs of the last 3 Brazilian Congress of Surgery, were selected 21 Brazilian plástic surgeons invited to serve as panelists or speakers in roundtable sessions in the last 3 congresses (Group 1). We randomly selected and paired by other members (associates) of the Brazilian Society of Plastic Surgery, with no participation in congress as speaker (Group 2).

Acute abdomen after abdominoplasty: differential diagnosis.

Unlabelled: Abdominoplasty is a very common elective procedure in plastic surgery. Surgical accidents can lead to serious complications that result in an acute surgical abdomen, but in rare cases, an acute surgical abdomen not related to the procedure develops. This report discusses the diagnostic approach for patients with an acute abdomen after abdominoplasty and presents a case of appendicitis in the immediate postoperative period.