IN REGENERATION of the optic nerve in amphibians the ingrowing optic axons, despite extreme intertangling and disarrangement of their original intraneural pattern in the scar region, manage somehow to restore their former functional associations in the brain centers in a discriminate systematic manner. Central synaptic connections are selectively reestablished by the various regenerating fibers...

Rhodococcus equi is a facultative intracellular, Gram-positive, soilborne actinomycete which can cause severe pyogranulomatous pneumonia with abscessation in young horses (foals) and in immunocompromised people, such as persons with AIDS. All strains of R. equi isolated from foals and approximately a third isolated from humans contain a large, ~81-kb plasmid which is essential for the intramacr...

The development of ventilator-induced lung injury (VILI) is still a major problem in mechanically ventilated patients. Low dose inhalation of hydrogen sulfide (H2S) during mechanical ventilation has been proven to prevent lung damage by limiting inflammatory responses in rodent models. However, the capacity of H2S to affect oxidative processes in VILI and its underlying molecular signaling path...

The Eternal system provides a novel methodology for the consistent replication of objects in an adaptive, faulttolerant, CORBA-compliant distributed system that is susceptible to partitioning. Passive and active replication schemes are supported in Eternal, and mechanisms are provided for the interaction of objects with different replication schemes. Nested operations for both passive and activ...

M oday, Sptem er 6, 2016 METHODS: For pharyngoesophageal reconstruction in a vessel-depleted neck, we have reliably transferred a pedicled ileocolon flap (terminal ileum, cecum, ascending colon and proximal transverse colon) based on the left ascending colic artery. After transection of the segment, the cecum reaches the oropharynx for an end-to-end anastomosis. The distal end of the proximal t...

This article examines the geographical corridors for the establishment of rice in seventeenth-century Dutch Guiana. One corridor of introduction is associated with the expulsion of Dutch planters from Brazil in 1644, whose slaves reestablished longstanding subsistence preferences with their exodus to the colony. Another corridor links its introduction to the African Gold Coast, where rice devel...

We consider the class of quantum mechanical master equations defined on a generic Banach space, arising by projecting weakly perturbed one-parameter groups of isometries. We show that the possible semigroup approximations are far from unique. However, uniqueness can be reestablished through the introduction of a dynamical time averaging map. The generator of the resulting Contraction Semigroup ...

TREATMENT of chronic pain in patients with a history of opioid addiction is difficult since tolerance to the opioid agonist effects may require extremely large opioid doses for pain control. Furthermore, insufficient pain control may be hard to discern from craving for more opioids. Although drug-free periods, also called “drug holiday,” can reestablish sensitivity to drugs used to treat Parkin...

Eradication of Staphylococcus aureus biofilms after rifampin treatment was tested in a mouse model of device-related infection by using biophotonic imaging. Following treatment, the bioluminescent signals decreased to undetectable levels, irrespective of the age of the biofilm. After the final treatment, the signals rebounded in a time-dependent manner and reached those for the untreated mice. ...

We report a rare complication occurring in a 72 year old patient previously undergone surgical aortic root replacement with Cabrol technique for an aneurysm of the ascending aorta and aortic valve incompetence. Sixteen years later the patient presented progressive congestive heart failure and a left ventricle-to-right atrium shunt due to the distal detachment of the valved tubular graft at leve...