Esterification is a chemical reaction used for making esters. The reaction in which a Caboxylic acid combines with an alcohol in the presence of a catalyst (commonly concentrated sulfuric acid) to form an ester [CH3COOC2H5] is called Esterificatin reaction. It is a reversible reaction.
ActiveCaptain is a popular community-based sailing website that contains user-generated information about marinas, anchorages, marine hazards and local points of interest for sailing grounds around the world. Founded in 2007 by Jeff and Karen Siegel, the ActiveCaptain community now has more than 200,000 users. It began as a website but now there is a companion app, as well as a database for several smartphone and tablet navigation apps.
active surveillance. Epidemiology Surveillance in which extra measures are taken to collect data and confirm diagnoses to ensure more complete reports for surveys and outbreak investigations. Active surveillance encompasses formal and informal communications. Oncology Active waiting An approach to managing early prostate cancer (PC), which affords a window on its natural history, and is an ideal setting for identifying and evaluating biomarkers of PC behaviour.