A Tree Torn by Lightning

Repairing a torn cell surface

Since the advent of microsurgical techniques in the early part of the last century, it has been known that animal cells can survive the experimental creation of very large holes (>1000 μm2) in their surface (reviewed in Chambers and Chambers, 1961; Heilbrunn, 1956). Remarkably, these initial observations of a truly remarkable cell capacity failed, for many subsequent decades, to generate furthe...

SOLVING A STEP FIXED CHARGE TRANSPORTATION PROBLEM BY A SPANNING TREE-BASED MEMETIC ALGORITHM

In this paper, we consider the step fixed-charge transportation problem (FCTP) in which a step fixed cost, sometimes called a setup cost, is incurred if another related variable assumes a nonzero value. In order to solve the problem, two metaheuristic, a spanning tree-based genetic algorithm (GA) and a spanning tree-based memetic algorithm (MA), are developed for this NP-hard problem. For compa...

Mosaicing of Torn Document Images

Recovery of ripped-up documents is a problem that often arises in archival study and investigation science. The growing interest in featureless image mosaicing is because of its demand as it is still in incubation stage. The use of mosaicing torn document images is that it has reliable performance, fast document recovery capability and onscreen visual verification. Further, Most document recons...

Rupture of a pregnant uterus by a lightning.

Lightning injury: a review.

Lightning is an uncommon but potentially devastating cause of injury in patients presenting to burn centers. These injuries feature unusual symptoms, high mortality, and significant long-term morbidity. This paper will review the epidemiology, physics, clinical presentation, management principles, and prevention of lightning injuries.