aD

For a design to pass, the factored resistance must be greater than or equal to the factored demand, or f R ≥ aD, where f is the resistance factor (generally less than 1) and a is the load factor (generally greater than 1).

2009 January - Telic Thoughts 2009

Mississippi's 1st district (D): Rep. Travis Childers (D) is up with his first ad of his general election fight against state Sen. Alan Nunnelee, a spot in which he seeks to put as much distance as possible between himself and Democrats in Washington.

President Obama, the 50 percent mark and the battle for the House 2010

Mississippi's 1st district (D): Rep. Travis Childers (D) is up with his first ad of his general election fight against state Sen. Alan Nunnelee, a spot in which he seeks to put as much distance as possible between himself and Democrats in Washington.

The Fix: Poll shows more bad news for Democrats 2010

The latest -- and perhaps most striking example -- came late last week in a new ad for Texas Rep. Chet Edwards '(D) campaign.

Should Democrats run to or from President Obama? 2010

SEIU was set to run a full-page ad Wednesday in the Staten Island Advance depicting a child in intensive care and demanding a "yes" vote from freshman Rep. Mike McMahon (D, N.Y.).

Obama's Base Joins the Fray Over Health Vote Jonathan Weisman 2010

With 12 days left before Pennsylvania voters head to the ballot box, Rep. Joe Sestak (D) has launched what he hopes will be a political death blow to Sen. Arlen Specter (D) -- an ad that details the party-switching incumbent's Republican past and casts his party switch in purely opportunistic terms.

Joe Sestak launches ad linking Arlen Specter to George Bush 2010

In their latest ad along those lines, President Obama and House Speaker Nancy Pelosi (D - Calif.) are once again shown ominously among a montage of economic horrors and angry people.

Obama, Pelosi Painted As Tyrants In New RGA Ad 2010

SEIU was set to run a full-page ad Wednesday in the Staten Island Advance depicting a child in intensive care and demanding a "yes" vote from freshman Rep. Mike McMahon (D, N.Y.).

Obama's Base Joins the Fray Over Health Vote Jonathan Weisman 2010

In their latest ad along those lines, President Obama and House Speaker Nancy Pelosi (D - Calif.) are once again shown ominously among a montage of economic horrors and angry people.

Obama, Pelosi Painted As Tyrants In New RGA Ad 2010

SEIU was set to run a full-page ad Wednesday in the Staten Island Advance depicting a child in intensive care and demanding a "yes" vote from freshman Rep. Mike McMahon (D, N.Y.).

Obama's Base Joins the Fray Over Health Vote Jonathan Weisman 2010