Soft rock reached its commercial peak in the mid-to-late 1970s with acts such as Toto, England Dan & John Ford Coley, Air Supply, Seals and Crofts, America and the reformed Fleetwood Mac, whose Rumours (1977) was the best-selling album of the decade. By 1977, some radio stations, like New York's WTFM and NBC-owned WYNY, had switched to an all-soft rock format. By the 1980s, tastes had changed and radio formats reflected this change, including musical artists such as Journey. Walter Sabo and his team at NBC brought in major personalities from the AM Band to the FM Band taking the format from a background to a foreground listening experience. The addition of major radio stars such as Dan Daniel, Steve O'Brien, Dick Summers, Don Bleu and Tom Parker made it possible to fully monetize the format and provide the foundation for financial success enjoyed to this day
During what period was adult contemporary its most commercially successful?
the mid-to-late 1970s

Lie groups are of fundamental importance in modern physics: Noether's theorem links continuous symmetries to conserved quantities. Rotation, as well as translations in space and time are basic symmetries of the laws of mechanics. They can, for instance, be used to construct simple models—imposing, say, axial symmetry on a situation will typically lead to significant simplification in the equations one needs to solve to provide a physical description.v[›] Another example are the Lorentz transformations, which relate measurements of time and velocity of two observers in motion relative to each other. They can be deduced in a purely group-theoretical way, by expressing the transformations as a rotational symmetry of Minkowski space. The latter serves—in the absence of significant gravitation—as a model of space time in special relativity. The full symmetry group of Minkowski space, i.e. including translations, is known as the Poincaré group. By the above, it plays a pivotal role in special relativity and, by implication, for quantum field theories. Symmetries that vary with location are central to the modern description of physical interactions with the help of gauge theory.
What concept is of basic importance in modern physics?
Lie groups

Many nonprofit organizations find it difficult to create consistent messaging that resonates with their various stakeholders as marketing budgets are minimal or nonexistent. Marketing is in many cases a taboo word that NPOs or others don't like to associate with such community benefit organizations. There are strategic ways in which nonprofits can leverage their access to various community stakeholders to get their name and cause recognized by the public, but it is imperative to have an outreach strategy which includes a financial plan to execute that outreach/marketing strategy, particularly if the organization has plans to rebrand or expand their initiaives.
What is a moer low-key way that NPOs can get access to marketing and word of mouth?
leverage their access to various community stakeholders to get their name and cause recognized by the public