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Sneezing produces complex fluid cascade,not a simple spray
Sneezing complex fluid cascade not a simple spray
2016/2/23
Here’s some incentive to cover your mouth the next time you sneeze: New high-speed videos captured by MIT researchers show that as a person sneezes, they launch a sheet of fluid that balloons, then br...
Total Synthesis of (±)-Decursivine and (±)-Serotobenine: A Witkop Photocyclization/Elimination/O-Michael Addition Cascade Approach
Total Synthesis of (±) Decursivine and (±)-Serotobenine A Witkop Photocyclization/Elimination/O-Michael Addition Cascade Approach
2012/7/3
Decursivine和Serotobenine是一类具有苯并二氢呋喃，吲哚并八元内酰胺多环体系的吲哚生物碱，分别具有抗疟疾及广泛的抗菌活性，其良好的生物活性和独特新颖的结构，引起了合成化学家的关注。其中Michael A. Kerr小组以18步3%的总收率首次完成了(±)-Decursivine的全合成，Tohru Fukuyama小组以24步8%的总收率首次完成了(-)-Serotobenin...
A redox-regulated tyrosine phosphorylation cascade in rat spermatozoa
Epididymal maturation cAMP-dependent phosphorylation
2008/12/29
Rat spermatozoa from both the caput and cauda epididymidis were shown to generate superoxide anion (O2-.) both spontaneously and following stimulation with NAD(P)H. Caput spermatozoa gave a signific...