A photodelay in chlorophyll-a and -b accumulation is observed in mustard (Sinupis ulhu L.) cotyledons during the first 3 h after the onset of white light even at medium light fluxes (3500 Ix). A pretreatment of two red light pulses or a 12 h far-red light pretreatment. both operating through phytochrome. prevent the photodelay completely. This is a specific phytochrome effect since it can be separated from the effects of phytochrome on the rates during pre-steady state and steady State phases of chlorophyll accumulation in saturating white light. Thus, photostability of chlorophyll in nature is a photoresponse mediated through phytochrome.
A review of the hip replacement operations performed by the department of orthopaedics of the University Hospital of Freiburg follows. The operation brought "very good" results for 14.4% of those operated upon, "good" results for 50.6% and satisfactory results for 29.7%. The results of the operation were unsatisfactory for 5.6% of the patients. In view of the possible complications, the results will be discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.