Sherry L. Xie

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The paper deals with the existence and multiplicity of positive solutions for a system of higher-order singular nonlinear fractional differential equations with nonlocal boundary conditions. The main tool used in the proof is fixed point index theory in cone. Some limit type conditions for ensuring the existence of positive solutions are given.
This issue will focus on writing and publishing CGT. The numerous remodeled versions of GT have resulted in many misunderstandings of the classic methodology, most particularly, the misconception that GT is a qualitative research method. The resultant confusion of CGT with qualitative methods is a frequent frustration – and sometimes obstacle – for CGT(More)
As a new generation of negative pressure drainage technology, vacuum-assisted closure (VAC) can provide stable and persistent negative pressure, and there are several modes to choose from. VAC plays an important role in closing wounds quickly, controlling infection, promoting angiogenesis, increasing blood flow, and promoting granulation tissue growth of(More)
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