Utilization of Intravascular Ultrasound and Aptus Heli-Fx EndoAnchors for a Complex Type Ia Endoleak Repair.

Type Ia endoleaks are a complication of endovascular aneurysm repair that require intervention due to the increased risk of aneurysmal rupture. Many techniques have been studied in order to minimize the occurrence of these complications, as well as to aid in their repair. We introduce the utilization of intravascular ultrasound in conjunction with the endovascular EndoAnchor systems for the repair of a complex type Ia endoleak in an infrarenal aortic stent graft.

A digital matched filter for reverse time chaos.

The use of reverse time chaos allows the realization of hardware chaotic systems that can operate at speeds equivalent to existing state of the art while requiring significantly less complex circuitry. Matched filter decoding is possible for the reverse time system since it exhibits a closed form solution formed partially by a linear basis pulse. Coefficients have been calculated and are used to realize the matched filter digitally as a finite impulse response filter.

Solvent extraction: the coordination chemistry behind extractive metallurgy.

The modes of action of the commercial solvent extractants used in extractive hydrometallurgy are classified according to whether the recovery process involves the transport of metal cations, M(n+), metalate anions, MXx(n-), or metal salts, MXx into a water-immiscible solvent. Well-established principles of coordination chemistry provide an explanation for the remarkable strengths and selectivities shown by most of these extractants. Reagents which achieve high selectivity when transporting metal cations or metal salts into a water-immiscible solvent usually operate in the inner coordination sphere of the metal and provide donor atom types or dispositions which favour the formation of particularly stable neutral complexes that have high solubility in the hydrocarbons commonly used in recovery processes.

Does the use of fentanyl in epidural solutions for postthoracotomy pain management in neonates affect surgical outcome?

Background/purpose: Continuous epidural analgesia is routinely used to manage pain in infants undergoing resection of a congenital cystic adenomatoid malformation (CCAM) of the lung. Our aim was to determine if there is a difference in the length of stay (LOS), supplemental analgesic requirements, pain control, and the incidence of adverse respiratory events in infants receiving the 2 standard epidural solutions commonly used: bupivacaine 0.1% and bupivacaine 0.

Validation of Pepperoni Processes for Control of Escherichia coli O157:H7 .

The outbreak of Escherichia coli O157:H7 linked with dry-cured salami in late 1994 prompted regulatory action that required manufacturers of fermented products to demonstrate a 5-log unit reduction in counts of this pathogen during processing. Therefore, pepperoni batter (75% pork:25% beef with a fat content of ca. 32%) was inoculated with a pediococcal starter culture and a five-strain mixture of E.