Low-dose zinc oxide nanoparticles trigger the growth and biofilm formation of Pseudomonas aeruginosa: a hormetic response.

Introduction: Hormesis describes an inverse dose-response relationship, whereby a high dose of a toxic compound is inhibitory, and a low dose is stimulatory. This study explores the hormetic response of low concentrations of zinc oxide nanoparticles (ZnO NPs) toward Pseudomonas aeruginosa.

Method: Samples of P.

Ultrasonography of the uterus after normal vaginal delivery.

Objective: To define the appearance of the uterus and the uterine cavity, as revealed by ultrasound in normal women following a vaginal delivery.

Methods: This prospective, longitudinal study took place at the Prince Hashem and Prince Ali Military Hospitals, Amman, Jordan from December 2002 to March 2003. Fifty-four women were scanned on postpartum days 1, 7, 14, 28, and 56.

Short report: outbreak of cutaneous leishmaniasis in a nonimmune population of soldiers in Wadi Araba, Jordan.

An outbreak of zoonotic cutaneous leishmaniasis (ZCL) occurred in a battalion of 80 soldiers posted at Qurayqira camp in Wadi Araba in southern Jordan. The battalion spent an intermittent period of five and a half months in the area, during which 45.0% (36 of 80) of the soldiers showed clinical disease.