igh performance microprocessors require a lowvoltage, high-current power supply with fast transient response. Therefore, interleaved multiphase synchronous buck converters have gained popularity as the VRM for these microprocessors. Multiphase converters must share load current to balance thermal stress on each phase, so it’s important to address current sensing and sharing. You can use the cur...

www.thelancet.com/oncology Vol 17 June 2016 685 Advanced colorectal cancer still has a poor prognosis and more active drugs are urgently needed. HER2 was investi gated as a target in colorectal cancer in two early trials of trastuzumab plus chemotherapy as fi rst, second or third line therapy, which produced interesting but confl icting results. In The Lancet Oncology, Andrea Sartore-Bianchi an...

One of the early events in the pathway of receptor-mediated endocytosis is the acidification of the newly formed endocytic vesicle. To examine the mechanism of acidification, we used fluorescein-labeled alpha 2-macroglobulin (F-alpha 2M) as a probe for endocytic vesicle pH. Changes in pH were determined from the change in fluorescein fluorescence at 490-nm excitation as measured with a microsco...

The grain boundaries (GBs) in the absorber of a Cu(In,Ga)(S,Se)2 (CIGS) solar cell play vital role its efficiency and cells with polycrystalline absorbers exhibit high conversion (>23%). Previous investigations confirm that traits GBs CIGS are directly connected to their composition. However, such relationship cannot be established for twin (TBs). This is because although electron beam-induced ...