In oil industry, spontaneous imbibition is an important phenomenon in recovery from fractured reservoirs which can be defined as spontaneous uptake of a wetting fluid into a porous solid. Spontaneous imbibition involves both cocurrent and countercurrent flows. When a matrix block is partially covered by water, oil recovery is dominated by cocurrent imbibition i.e. the production of non wettin...

Much research has been carried out to explore the structural properties1–10 and vulnerability11–19 of complex networks. Of particular interest are abrupt dynamic events that cause networks to irreversibly fail13–17. However, in many realworld phenomena, such as brain seizures in neuroscience or sudden market crashes in finance, after an inactive period of time a significant part of the damaged ...

Gorham's disease is a rare benign cause of progressive massive idiopathic osteolysis. The clinician's acute awareness and high degree of suspicion are required for diagnosis because of its rarity and variable clinical presentation. Distinctive radiological and histopathological features may help in this regard. Though eventual stabilisation of the affected bone is the most common sequel, sponta...

Axons in the adult CNS fail to regenerate after injury, and therefore recovery from spinal cord injury (SCI) is limited. Although full recovery is rare, a modest degree of spontaneous recovery is observed consistently in a broad range of clinical and nonclinical situations. To define the mechanisms mediating spontaneous recovery of function after incomplete SCI, we created bilaterally complete ...

Over a period of more than 3 years, changes in visual and neuropsychological functions were examined in a patient with a visual field defect caused by a cerebral gunshot lesion. Initially, the patient had been completely blind, but after 6 months of spontaneous recovery, he showed a homonymous bilateral lower quadrantanopia and impairment of higher visual functions. Unexpectedly, recovery still...