Abstract: Provided are a fibroblast activation protein inhibitor (FAPI) dimer compound, an FAPI dimer-based positron emission tomography (PET) imaging agent for tumor diagnosis, and a preparation method and use thereof. An amphiphilic polyethylene glycol (PEG) chain and a dimerized structure of FAPI in the FAPI dimer compound with a structure shown in formula I can improve the in vivo kinetic properties of the compound and prolong a residence time of the compound in a tumor, thereby improving the uptake and imaging effects in the tumor. The accurate tumor diagnosis can be achieved by labeling the FAPI dimer compound with a diagnostic nuclide (68Ga), which has promising application prospects in PET imaging for diagnosis and in the preparation of a therapeutic nuclide (such as 177Lu or 90Y)-labeled drug for treating a FAP-?-expressing tumor.

Abstract: A system can include a board that includes a chipset that includes a processor; an edge connector housing and card lock assembly mounted to the board where the edge connector housing and card lock assembly includes a tongue that includes an axle and a latch rotatable about the axle for orientation in a locked state and in an unlocked state; and a video card operatively coupled to the processor where the video card includes a graphics processor and an edge received by the edge connector housing and card lock assembly and where the video card includes a prong wherein, in the locked state, an extension of the latch is disposed between a surface of the prong and a surface of the tongue.

Abstract: A system can include a board that includes a chipset that includes a processor; an edge connector housing and card lock assembly mounted to the board where the edge connector housing and card lock assembly includes a tongue that includes an axle and a latch rotatable about the axle for orientation in a locked state and in an unlocked state; and a video card operatively coupled to the processor where the video card includes a graphics processor and an edge received by the edge connector housing and card lock assembly and where the video card includes a prong wherein, in the locked state, an extension of the latch is disposed between a surface of the prong and a surface of the tongue.