Background Patients with heart failure with preserved ejection fraction (HFpEF) are a complex and underserved group. They are commonly older patients with multiple comorbidities, who rely on multiple ...

Mathematics students face challenges with rational and irrational numbers. Understanding the principles and patterns ...

This paper proposes a new perspective-Vicept representation to solve the problem of visual polysemia and concept polymorphism in the large-scale semantic image understanding. Vicept characterizes the ...

In particular, using structural equation modeling techniques to analyze data of 646 fifth and sixth graders' performance on fractions, we examined the associations among the different subconstructs of ...

President Donald Trump's decision to impose 25% tariffs on imports from South Korea and Japan is drawing sharp criticism from economists who say the rationale behind the move is fundamentally flawed.