Transport through two point-contacts in series, even with arbitrarily high transmissions, can be modeled with rate equations if the rates are deduced from the quantum mechanical current formula, which thus accounts for interferences on the wavefunction level. An expression using Green’s functions giving the current through a single contact is valid for evaluating the charging rates of the enclo...

Three cases are presented in which clinical and radiological features suggested the diagnosis of glioma but surgical biopsy revealed a demyelinating process, with tissue destruction and cyst formation in two. One patient had clinically definite multiple sclerosis. Two had probable acute disseminated encephalomyelitis. Treatment with high dose steroids is appropriate when there is clinical or in...

It is now well recognized that idiopathic chondrocalcinosis articularis, as well as being associated with acute episodes of pyrophosphate arthropathy, may lead to premature degenerative changes in the joints involved. Some workers have also made occasional reference to the presence of juxta-articular osteolytic lesions (McCarty, Kohn, and Faires, 1962; Currey, 1970.) More recently there have be...

We study the complexity of Destructive Shift Bribery. In this problem, we are given an election with a set of candidates and a set of voters (ranking the candidates from best to worst, each), a despised candidate d (typically, one of the current winners), a budget B, and prices for shifting d down in voters’ rankings. The goal is to ensure that d is not a winner of the election. We show that th...

BACKGROUND Our previous experience with colon injuries suggested that operative decisions based on a defined algorithm improve outcomes. The purpose of this study was to evaluate the validity of this algorithm in the face of an increased incidence of destructive injuries observed in recent years. STUDY DESIGN Consecutive patients with full-thickness penetrating colon injuries over an 8-year p...