Megaphone

Abstract: We design and implement Megaphone, a data migration mechanism for stateful distributed dataflow engines with latency objectives. When compared to existing migration mechanisms, Megaphone has the following differentiating characteristics: (i) migrations can be subdivided to a configurable granularity to avoid latency spikes, and (ii) migrations can be prepared ahead of time to avoid runtime coordination. Megaphone is implemented as a library on an unmodified timely dataflow implementation, and provides an operator interface compatible with its existing APIs. We evaluate Megaphone on established benchmarks with varying amounts of state and observe that compared to naive approaches Megaphone reduces service latencies during reconfiguration by orders of magnitude without significantly increasing steady-state overhead.

Abstract: Disclosed is an inventive apparatus which is interchangeably useful as a container or a megaphone. The apparatus includes a rigid, hollow, double-walled body open at its bottom through an outlet and opened at its top through a port. The apparatus is designed to be hand-held. A removable and reinsertable cap and base are designed to fit respectively into the port and outlet. When inserted, the cap and base make the body useful as a temperature maintaining potable liquid container. When removed, the cap and base open the body for use as a megaphone.

Abstract: The isolation and elucidation of the structure and stereochemistry of megaphone ( l ) , a new cytotoxic neolignan from Aniba rnegaphylla Mez., are reported. Chemical and spectral evidence supported structure 1 for megaphone, and a direct x-ray crystallographic analysis confirmed the structure and established the stereochemistry. Two additional new cytotoxic neolignans, megaphone acetate (2) and megaphyllone acetate (3), were isolated and their structures deduced in light of the structure of 1. The lack of activity of these neolignans as inhibitors of mitosis in sea urchin eggs is discussed in terms of structural features.

Abstract: Abstract Amassing an audience by blogging is a very recent form of online consumer behavior. Consumers not only seek community as earlier studies show, they also look for taste leadership from certain peers Fashion bloggers take hold of the Internet “megaphone” to broadcast and influence taste within an elaborate social and cultural process. It teaches us some general principles about the ways professional marketing is affected by these “citizen journalists” on social media, and how their behavior is affected by marketers. These megaphone-holding consumers have real power, and their consumer-to-consumer relationships depend upon brands. Brands are increasingly coming to depend upon them as well. Although these bloggers started out as ordinary consumers, they were soon integrated into the professional fashion system and do not oppose it. They therefore pose no threat to professional marketers, but rather offeran alternative marketing opportunity within the complex web of social media.