نتایج جستجو برای: derailment
تعداد نتایج: 347 فیلتر نتایج به سال:
Rail shipments of hazardous materials expose the population near the routes to the possibility of an accident resulting in a spill. Rail routes are determined by economic concerns such as route length and the revenue generated for the originating carrier. In this paper we consider an alternate routing strategy that takes accident risks into account. We employ a model to quantify rail transport ...
This empirical analysis examines the use of the live-streaming application Periscope in three crises that occurred in 2015. Qualitative and quantitative analyses of tweets relating to the Amtrak derailment in Philadelphia, Baltimore protests after Freddie Grey’s death, and Hurricane Joaquin flooding in South Carolina reveal that this recently deployed application is being used by both citizens ...
The ubiquitin-conjugating yeast enzyme RAD6 and its human homologs hHR6A and hHR6B are implicated in postreplication repair and damage-induced mutagenesis. The yeast protein is also required for sporulation and may modulate chromatin structure via histone ubiquitination. We report the phenotype of the first animal mutant in the ubiquitin pathway: inactivation of the hHR6B-homologous gene in mic...
Epilepsy affects between 0.5% and 1% of the population and starts in childhood in two-thirds of patients. Approximately 30% of patients with epilepsy who are less than 18 years of age have medically refractory seizures [1, 2]. Seizures may adversely impact intellectual functioning [3-6] and therefore good seizure control is of critical importance. Compared with the mature brain, the impact of s...
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