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Receptor activity-modifying proteins (RAMPs) are a class of protein that interact with and modulate the activities of several Class B G protein-coupled receptors including the receptors for secretin, calcitonin (CT), glucagon, and vasoactive intestinal peptide (VIP). [1]
The Enders SAMP/RAMP hydrazone alkylation reaction is an asymmetric carbon-carbon bond formation reaction facilitated by pyrrolidine chiral auxiliaries. It was pioneered by E. J. Corey and Dieter Enders in 1976, [1] and was further developed by Enders and his group. [2] This method is usually a three-step sequence.
Baggage handler unloading baggage from a bag belt at Detroit Metropolitan Airport. In the airline industry, a baggage handler is a person who loads and unloads baggage (suitcases or luggage), and other cargo (airfreight, mail, counter-to-counter packages) for transport via aircraft.
The electric energy is carried from a generator to a connection on the aircraft via 3 phase 4-wire insulated cable capable of handling 261 amps (90 kVA). These connectors are standard for all aircraft, as defined in ISO 6858. [3] A so-called "solid state unit" converts power from AC to DC along with current separation for aircraft power ...
The term "ramp" can also be used for other functions obtained by scaling and shifting, and the function in this article is the unit ramp function (slope 1, starting at 0). In mathematics, the ramp function is also known as the positive part. In machine learning, it is commonly known as a ReLU activation function [1] [2] or a rectifier in ...
RAMP was originally developed by Rex Thompson & Partners Ltd. in the mid-1980s as an availability simulation program, primarily used for plant and process modelling. [1] The ownership of RAMP was transferred to T.A. Group [2] upon its founding in January 1990, [3] and then to Fluor Corporation when it acquired T.A. Group in April 1996, [4 ...
Icelandair Boeing 757 being serviced by another airline; SAS at Gardermoen Airport A ground-handling tug pulls a British Airways Boeing 747-400 at Heathrow Airport, England Airbus A380-800 operated by Qatar Airways on apron outside Heathrow Terminal 4 with a wide range of ground handling equipments around such as aircraft container, pallet loader, ULD, jet air starter, belt loader, pushback ...
Although it has not been confirmed, binding of gp120-CCR5 involves two crucial steps: 1) The tyrosine-sulfated amino terminus of this co-receptor is an "essential determinant" of binding to gp120 (as stated previously) 2) Following step 1., there must be reciprocal action (synergy, intercommunication) between gp120 and the CCR5 transmembrane ...