Life saving collaterals: Right-to-left and left-to-right

Learning Left-to-Right and Right-to-Left Iterative Languages

The left-to-right and right-to-left iterative languages are previously unnoticed subclasses of the regular languages of infinite size that are identifiable in the limit from positive data. Essentially, these language classes are the ones obtained by merging final states in a prefix tree and initial states in a suffix tree of the observed sample, respectively. Strikingly, these classes are also ...

Right - to - Left or Left - to - Right Exponentiation ?

The most recent left-to-right and right-to-left multibase exponentiation methods are compared for elliptic curve and modular residue groups to gauge the value and cost of switching from the normal left-toright mode to the more side channel resistant right-to-left direction in a resource constrained environment.

Left-to-Right Shunts

Contrary to the opinion of French pediatrician HenriLouis that isolated ventricular septal defects (VSDs) are universally well tolerated, the subsequent discoveries of Eisenmenger, Abbott, Wood, and others have taught us that the prognosis of left-to-right shunt lesions is not always benign. After more than a century of research, as pediatric cardiologists and congenital heart surgeons, we clai...

Right-to-Left Shunt

The patient is a 25-year-old woman transferred to Hermann Hospital 3 days after admission to an outlying facility. The patient initially woke up at 3 AM with acute onset of nausea, mild headache, hemoptysis (1⁄4/4 cup of fresh blood), and worsening shortness of breath. She then noticed weakness in the right half of her body associated with dysarthria. She had no associated chest pain or palpita...

Estimating right and left returns to scales in data envelopment analysis: A new approach