USE OF A 4-WEEK UP-TITRATION REGIMEN OF ROFLUMILAST IN PATIENTS WITH SEVERE COPD


Clamping of chest drain before removal in spontaneous pneumothorax

Abstract Background In spontaneous pneumothorax, clamping the chest drain before its removal may avoid reinsertion in case of early recurrence, but may be unsafe and may prolong hospital stay.The objective of this study was to examine the incidence of early recurrence in both clamped and unclamped pneumothorax episodes, and factors associated with

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Van der Waals Integrated Silicon/Graphene/AlGaN Based Vertical Heterostructured Hot Electron Light Emitting Diodes

Silicon-based light emitting diodes (LED) are indispensable elements for the rapidly growing field of silicon compatible photonic integration platforms.In the present study, graphene has been utilized as an interfacial layer to realize a unique illumination mechanism for the silicon-based LEDs.We designed a Si/thick dielectric layer/graphene/AlGaN

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