where ε is a small positive parameter, a,b > 0, λ > 0, 2 < p≤ 4, V andW are two potentials. Under proper assumptions, we prove that, for ε > 0 sufficiently small, the above problem has a positive ground-state solution uε by using a monotonicity trick and a new version of global compactness lemma. Moreover, we use another global compactness method due to Gui (Commun. Partial Differ. Equ. 21:787-...

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BACKGROUND The study was conducted to examine esophageal and gastric cardia precursor progression. METHODS After population-based baseline screening, 145 precursor and 335 chronic inflammation cases were endoscopically surveyed for six years. RESULTS Surveillance of interval and baseline diagnoses for 18 severe dysplasia (SD) cases later detected were: 13, 23, 39, and 44 months since a diag...